Merge "veyron/security,veyron/runtimes/google/security: Move all caveat implementations to veyron/security."
diff --git a/examples/bank/bank.vdl b/examples/bank/bank.vdl
new file mode 100644
index 0000000..bbefdad
--- /dev/null
+++ b/examples/bank/bank.vdl
@@ -0,0 +1,28 @@
+/*
+Package bank implements an application to manipulate virtual money. The client's
+Veyron Identity determines the account they can manipulate. New identity's make
+a new account. Clients can deposit, withdraw, transfer, or query their balance
+in virtual currency.
+*/
+package bank
+
+import "veyron2/security"
+
+// Bank allows clients to store virtual money. Certain implementations can use persistent storage.
+// Uses the client's Veyron Identity to determine account access.
+type Bank interface {
+ // Connect causes the bank to bless a new user (string) and return their bank account number (int64). Existing users are not blessed (""), but still receive their account number (int64).
+ Connect() (newIdentity string, accountNumber int64, err error) {security.WriteLabel}
+}
+
+// The BankAccount can only be accessed by blessed users
+type BankAccount interface {
+ // Deposit adds the amount given to this account.
+ Deposit(amount int64) error {security.WriteLabel}
+ // Withdraw reduces the amount given from this account.
+ Withdraw(amount int64) error {security.WriteLabel}
+ // Transfer moves the amount given to the receiver's account.
+ Transfer(receiver int64, amount int64) error {security.WriteLabel}
+ // Balance returns the amount stored in this account.
+ Balance() (int64, error) {security.ReadLabel}
+}
diff --git a/examples/bank/bank.vdl.go b/examples/bank/bank.vdl.go
new file mode 100644
index 0000000..207d354
--- /dev/null
+++ b/examples/bank/bank.vdl.go
@@ -0,0 +1,446 @@
+// This file was auto-generated by the veyron vdl tool.
+// Source: bank.vdl
+
+/*
+Package bank implements an application to manipulate virtual money. The client's
+Veyron Identity determines the account they can manipulate. New identity's make
+a new account. Clients can deposit, withdraw, transfer, or query their balance
+in virtual currency.
+*/
+package bank
+
+import (
+ "veyron2/security"
+
+ // The non-user imports are prefixed with "_gen_" to prevent collisions.
+ _gen_veyron2 "veyron2"
+ _gen_context "veyron2/context"
+ _gen_ipc "veyron2/ipc"
+ _gen_naming "veyron2/naming"
+ _gen_rt "veyron2/rt"
+ _gen_vdl "veyron2/vdl"
+ _gen_wiretype "veyron2/wiretype"
+)
+
+// Bank allows clients to store virtual money. Certain implementations can use persistent storage.
+// Uses the client's Veyron Identity to determine account access.
+// Bank is the interface the client binds and uses.
+// Bank_ExcludingUniversal is the interface without internal framework-added methods
+// to enable embedding without method collisions. Not to be used directly by clients.
+type Bank_ExcludingUniversal interface {
+ // Connect causes the bank to bless a new user (string) and return their bank account number (int64). Existing users are not blessed (""), but still receive their account number (int64).
+ Connect(ctx _gen_context.T, opts ..._gen_ipc.CallOpt) (newIdentity string, accountNumber int64, err error)
+}
+type Bank interface {
+ _gen_ipc.UniversalServiceMethods
+ Bank_ExcludingUniversal
+}
+
+// BankService is the interface the server implements.
+type BankService interface {
+
+ // Connect causes the bank to bless a new user (string) and return their bank account number (int64). Existing users are not blessed (""), but still receive their account number (int64).
+ Connect(context _gen_ipc.ServerContext) (newIdentity string, accountNumber int64, err error)
+}
+
+// BindBank returns the client stub implementing the Bank
+// interface.
+//
+// If no _gen_ipc.Client is specified, the default _gen_ipc.Client in the
+// global Runtime is used.
+func BindBank(name string, opts ..._gen_ipc.BindOpt) (Bank, error) {
+ var client _gen_ipc.Client
+ switch len(opts) {
+ case 0:
+ client = _gen_rt.R().Client()
+ case 1:
+ switch o := opts[0].(type) {
+ case _gen_veyron2.Runtime:
+ client = o.Client()
+ case _gen_ipc.Client:
+ client = o
+ default:
+ return nil, _gen_vdl.ErrUnrecognizedOption
+ }
+ default:
+ return nil, _gen_vdl.ErrTooManyOptionsToBind
+ }
+ stub := &clientStubBank{client: client, name: name}
+
+ return stub, nil
+}
+
+// NewServerBank creates a new server stub.
+//
+// It takes a regular server implementing the BankService
+// interface, and returns a new server stub.
+func NewServerBank(server BankService) interface{} {
+ return &ServerStubBank{
+ service: server,
+ }
+}
+
+// clientStubBank implements Bank.
+type clientStubBank struct {
+ client _gen_ipc.Client
+ name string
+}
+
+func (__gen_c *clientStubBank) Connect(ctx _gen_context.T, opts ..._gen_ipc.CallOpt) (newIdentity string, accountNumber int64, err error) {
+ var call _gen_ipc.Call
+ if call, err = __gen_c.client.StartCall(ctx, __gen_c.name, "Connect", nil, opts...); err != nil {
+ return
+ }
+ if ierr := call.Finish(&newIdentity, &accountNumber, &err); ierr != nil {
+ err = ierr
+ }
+ return
+}
+
+func (__gen_c *clientStubBank) UnresolveStep(ctx _gen_context.T, opts ..._gen_ipc.CallOpt) (reply []string, err error) {
+ var call _gen_ipc.Call
+ if call, err = __gen_c.client.StartCall(ctx, __gen_c.name, "UnresolveStep", nil, opts...); err != nil {
+ return
+ }
+ if ierr := call.Finish(&reply, &err); ierr != nil {
+ err = ierr
+ }
+ return
+}
+
+func (__gen_c *clientStubBank) Signature(ctx _gen_context.T, opts ..._gen_ipc.CallOpt) (reply _gen_ipc.ServiceSignature, err error) {
+ var call _gen_ipc.Call
+ if call, err = __gen_c.client.StartCall(ctx, __gen_c.name, "Signature", nil, opts...); err != nil {
+ return
+ }
+ if ierr := call.Finish(&reply, &err); ierr != nil {
+ err = ierr
+ }
+ return
+}
+
+func (__gen_c *clientStubBank) GetMethodTags(ctx _gen_context.T, method string, opts ..._gen_ipc.CallOpt) (reply []interface{}, err error) {
+ var call _gen_ipc.Call
+ if call, err = __gen_c.client.StartCall(ctx, __gen_c.name, "GetMethodTags", []interface{}{method}, opts...); err != nil {
+ return
+ }
+ if ierr := call.Finish(&reply, &err); ierr != nil {
+ err = ierr
+ }
+ return
+}
+
+// ServerStubBank wraps a server that implements
+// BankService and provides an object that satisfies
+// the requirements of veyron2/ipc.ReflectInvoker.
+type ServerStubBank struct {
+ service BankService
+}
+
+func (__gen_s *ServerStubBank) GetMethodTags(call _gen_ipc.ServerCall, method string) ([]interface{}, error) {
+ // TODO(bprosnitz) GetMethodTags() will be replaces with Signature().
+ // Note: This exhibits some weird behavior like returning a nil error if the method isn't found.
+ // This will change when it is replaced with Signature().
+ switch method {
+ case "Connect":
+ return []interface{}{security.Label(2)}, nil
+ default:
+ return nil, nil
+ }
+}
+
+func (__gen_s *ServerStubBank) Signature(call _gen_ipc.ServerCall) (_gen_ipc.ServiceSignature, error) {
+ result := _gen_ipc.ServiceSignature{Methods: make(map[string]_gen_ipc.MethodSignature)}
+ result.Methods["Connect"] = _gen_ipc.MethodSignature{
+ InArgs: []_gen_ipc.MethodArgument{},
+ OutArgs: []_gen_ipc.MethodArgument{
+ {Name: "newIdentity", Type: 3},
+ {Name: "accountNumber", Type: 37},
+ {Name: "err", Type: 65},
+ },
+ }
+
+ result.TypeDefs = []_gen_vdl.Any{
+ _gen_wiretype.NamedPrimitiveType{Type: 0x1, Name: "error", Tags: []string(nil)}}
+
+ return result, nil
+}
+
+func (__gen_s *ServerStubBank) UnresolveStep(call _gen_ipc.ServerCall) (reply []string, err error) {
+ if unresolver, ok := __gen_s.service.(_gen_ipc.Unresolver); ok {
+ return unresolver.UnresolveStep(call)
+ }
+ if call.Server() == nil {
+ return
+ }
+ var published []string
+ if published, err = call.Server().Published(); err != nil || published == nil {
+ return
+ }
+ reply = make([]string, len(published))
+ for i, p := range published {
+ reply[i] = _gen_naming.Join(p, call.Name())
+ }
+ return
+}
+
+func (__gen_s *ServerStubBank) Connect(call _gen_ipc.ServerCall) (newIdentity string, accountNumber int64, err error) {
+ newIdentity, accountNumber, err = __gen_s.service.Connect(call)
+ return
+}
+
+// The BankAccount can only be accessed by blessed users
+// BankAccount is the interface the client binds and uses.
+// BankAccount_ExcludingUniversal is the interface without internal framework-added methods
+// to enable embedding without method collisions. Not to be used directly by clients.
+type BankAccount_ExcludingUniversal interface {
+ // Deposit adds the amount given to this account.
+ Deposit(ctx _gen_context.T, amount int64, opts ..._gen_ipc.CallOpt) (err error)
+ // Withdraw reduces the amount given from this account.
+ Withdraw(ctx _gen_context.T, amount int64, opts ..._gen_ipc.CallOpt) (err error)
+ // Transfer moves the amount given to the receiver's account.
+ Transfer(ctx _gen_context.T, receiver int64, amount int64, opts ..._gen_ipc.CallOpt) (err error)
+ // Balance returns the amount stored in this account.
+ Balance(ctx _gen_context.T, opts ..._gen_ipc.CallOpt) (reply int64, err error)
+}
+type BankAccount interface {
+ _gen_ipc.UniversalServiceMethods
+ BankAccount_ExcludingUniversal
+}
+
+// BankAccountService is the interface the server implements.
+type BankAccountService interface {
+
+ // Deposit adds the amount given to this account.
+ Deposit(context _gen_ipc.ServerContext, amount int64) (err error)
+ // Withdraw reduces the amount given from this account.
+ Withdraw(context _gen_ipc.ServerContext, amount int64) (err error)
+ // Transfer moves the amount given to the receiver's account.
+ Transfer(context _gen_ipc.ServerContext, receiver int64, amount int64) (err error)
+ // Balance returns the amount stored in this account.
+ Balance(context _gen_ipc.ServerContext) (reply int64, err error)
+}
+
+// BindBankAccount returns the client stub implementing the BankAccount
+// interface.
+//
+// If no _gen_ipc.Client is specified, the default _gen_ipc.Client in the
+// global Runtime is used.
+func BindBankAccount(name string, opts ..._gen_ipc.BindOpt) (BankAccount, error) {
+ var client _gen_ipc.Client
+ switch len(opts) {
+ case 0:
+ client = _gen_rt.R().Client()
+ case 1:
+ switch o := opts[0].(type) {
+ case _gen_veyron2.Runtime:
+ client = o.Client()
+ case _gen_ipc.Client:
+ client = o
+ default:
+ return nil, _gen_vdl.ErrUnrecognizedOption
+ }
+ default:
+ return nil, _gen_vdl.ErrTooManyOptionsToBind
+ }
+ stub := &clientStubBankAccount{client: client, name: name}
+
+ return stub, nil
+}
+
+// NewServerBankAccount creates a new server stub.
+//
+// It takes a regular server implementing the BankAccountService
+// interface, and returns a new server stub.
+func NewServerBankAccount(server BankAccountService) interface{} {
+ return &ServerStubBankAccount{
+ service: server,
+ }
+}
+
+// clientStubBankAccount implements BankAccount.
+type clientStubBankAccount struct {
+ client _gen_ipc.Client
+ name string
+}
+
+func (__gen_c *clientStubBankAccount) Deposit(ctx _gen_context.T, amount int64, opts ..._gen_ipc.CallOpt) (err error) {
+ var call _gen_ipc.Call
+ if call, err = __gen_c.client.StartCall(ctx, __gen_c.name, "Deposit", []interface{}{amount}, opts...); err != nil {
+ return
+ }
+ if ierr := call.Finish(&err); ierr != nil {
+ err = ierr
+ }
+ return
+}
+
+func (__gen_c *clientStubBankAccount) Withdraw(ctx _gen_context.T, amount int64, opts ..._gen_ipc.CallOpt) (err error) {
+ var call _gen_ipc.Call
+ if call, err = __gen_c.client.StartCall(ctx, __gen_c.name, "Withdraw", []interface{}{amount}, opts...); err != nil {
+ return
+ }
+ if ierr := call.Finish(&err); ierr != nil {
+ err = ierr
+ }
+ return
+}
+
+func (__gen_c *clientStubBankAccount) Transfer(ctx _gen_context.T, receiver int64, amount int64, opts ..._gen_ipc.CallOpt) (err error) {
+ var call _gen_ipc.Call
+ if call, err = __gen_c.client.StartCall(ctx, __gen_c.name, "Transfer", []interface{}{receiver, amount}, opts...); err != nil {
+ return
+ }
+ if ierr := call.Finish(&err); ierr != nil {
+ err = ierr
+ }
+ return
+}
+
+func (__gen_c *clientStubBankAccount) Balance(ctx _gen_context.T, opts ..._gen_ipc.CallOpt) (reply int64, err error) {
+ var call _gen_ipc.Call
+ if call, err = __gen_c.client.StartCall(ctx, __gen_c.name, "Balance", nil, opts...); err != nil {
+ return
+ }
+ if ierr := call.Finish(&reply, &err); ierr != nil {
+ err = ierr
+ }
+ return
+}
+
+func (__gen_c *clientStubBankAccount) UnresolveStep(ctx _gen_context.T, opts ..._gen_ipc.CallOpt) (reply []string, err error) {
+ var call _gen_ipc.Call
+ if call, err = __gen_c.client.StartCall(ctx, __gen_c.name, "UnresolveStep", nil, opts...); err != nil {
+ return
+ }
+ if ierr := call.Finish(&reply, &err); ierr != nil {
+ err = ierr
+ }
+ return
+}
+
+func (__gen_c *clientStubBankAccount) Signature(ctx _gen_context.T, opts ..._gen_ipc.CallOpt) (reply _gen_ipc.ServiceSignature, err error) {
+ var call _gen_ipc.Call
+ if call, err = __gen_c.client.StartCall(ctx, __gen_c.name, "Signature", nil, opts...); err != nil {
+ return
+ }
+ if ierr := call.Finish(&reply, &err); ierr != nil {
+ err = ierr
+ }
+ return
+}
+
+func (__gen_c *clientStubBankAccount) GetMethodTags(ctx _gen_context.T, method string, opts ..._gen_ipc.CallOpt) (reply []interface{}, err error) {
+ var call _gen_ipc.Call
+ if call, err = __gen_c.client.StartCall(ctx, __gen_c.name, "GetMethodTags", []interface{}{method}, opts...); err != nil {
+ return
+ }
+ if ierr := call.Finish(&reply, &err); ierr != nil {
+ err = ierr
+ }
+ return
+}
+
+// ServerStubBankAccount wraps a server that implements
+// BankAccountService and provides an object that satisfies
+// the requirements of veyron2/ipc.ReflectInvoker.
+type ServerStubBankAccount struct {
+ service BankAccountService
+}
+
+func (__gen_s *ServerStubBankAccount) GetMethodTags(call _gen_ipc.ServerCall, method string) ([]interface{}, error) {
+ // TODO(bprosnitz) GetMethodTags() will be replaces with Signature().
+ // Note: This exhibits some weird behavior like returning a nil error if the method isn't found.
+ // This will change when it is replaced with Signature().
+ switch method {
+ case "Deposit":
+ return []interface{}{security.Label(2)}, nil
+ case "Withdraw":
+ return []interface{}{security.Label(2)}, nil
+ case "Transfer":
+ return []interface{}{security.Label(2)}, nil
+ case "Balance":
+ return []interface{}{security.Label(1)}, nil
+ default:
+ return nil, nil
+ }
+}
+
+func (__gen_s *ServerStubBankAccount) Signature(call _gen_ipc.ServerCall) (_gen_ipc.ServiceSignature, error) {
+ result := _gen_ipc.ServiceSignature{Methods: make(map[string]_gen_ipc.MethodSignature)}
+ result.Methods["Balance"] = _gen_ipc.MethodSignature{
+ InArgs: []_gen_ipc.MethodArgument{},
+ OutArgs: []_gen_ipc.MethodArgument{
+ {Name: "", Type: 37},
+ {Name: "", Type: 65},
+ },
+ }
+ result.Methods["Deposit"] = _gen_ipc.MethodSignature{
+ InArgs: []_gen_ipc.MethodArgument{
+ {Name: "amount", Type: 37},
+ },
+ OutArgs: []_gen_ipc.MethodArgument{
+ {Name: "", Type: 65},
+ },
+ }
+ result.Methods["Transfer"] = _gen_ipc.MethodSignature{
+ InArgs: []_gen_ipc.MethodArgument{
+ {Name: "receiver", Type: 37},
+ {Name: "amount", Type: 37},
+ },
+ OutArgs: []_gen_ipc.MethodArgument{
+ {Name: "", Type: 65},
+ },
+ }
+ result.Methods["Withdraw"] = _gen_ipc.MethodSignature{
+ InArgs: []_gen_ipc.MethodArgument{
+ {Name: "amount", Type: 37},
+ },
+ OutArgs: []_gen_ipc.MethodArgument{
+ {Name: "", Type: 65},
+ },
+ }
+
+ result.TypeDefs = []_gen_vdl.Any{
+ _gen_wiretype.NamedPrimitiveType{Type: 0x1, Name: "error", Tags: []string(nil)}}
+
+ return result, nil
+}
+
+func (__gen_s *ServerStubBankAccount) UnresolveStep(call _gen_ipc.ServerCall) (reply []string, err error) {
+ if unresolver, ok := __gen_s.service.(_gen_ipc.Unresolver); ok {
+ return unresolver.UnresolveStep(call)
+ }
+ if call.Server() == nil {
+ return
+ }
+ var published []string
+ if published, err = call.Server().Published(); err != nil || published == nil {
+ return
+ }
+ reply = make([]string, len(published))
+ for i, p := range published {
+ reply[i] = _gen_naming.Join(p, call.Name())
+ }
+ return
+}
+
+func (__gen_s *ServerStubBankAccount) Deposit(call _gen_ipc.ServerCall, amount int64) (err error) {
+ err = __gen_s.service.Deposit(call, amount)
+ return
+}
+
+func (__gen_s *ServerStubBankAccount) Withdraw(call _gen_ipc.ServerCall, amount int64) (err error) {
+ err = __gen_s.service.Withdraw(call, amount)
+ return
+}
+
+func (__gen_s *ServerStubBankAccount) Transfer(call _gen_ipc.ServerCall, receiver int64, amount int64) (err error) {
+ err = __gen_s.service.Transfer(call, receiver, amount)
+ return
+}
+
+func (__gen_s *ServerStubBankAccount) Balance(call _gen_ipc.ServerCall) (reply int64, err error) {
+ reply, err = __gen_s.service.Balance(call)
+ return
+}
diff --git a/examples/bank/bank/main.go b/examples/bank/bank/main.go
new file mode 100644
index 0000000..92228f6
--- /dev/null
+++ b/examples/bank/bank/main.go
@@ -0,0 +1,204 @@
+// Binary bank is a bank client that interacts with bankd and pbankd.
+// Users connect to a bank service and can send commands to it.
+package main
+
+import (
+ "bufio"
+ "flag"
+ "fmt"
+ "os"
+ "strconv"
+ "strings"
+
+ "veyron/examples/bank"
+ idutil "veyron/services/identity/util"
+
+ "veyron2"
+ "veyron2/naming"
+ "veyron2/rt"
+ "veyron2/security"
+)
+
+var (
+ // TODO(rthellend): Remove the address flag when the config manager is working.
+ address = flag.String("address", "", "the address/endpoint of the bank server")
+ serverPattern = flag.String("server_pattern", "*", "server_pattern is an optional pattern for the expected identity of the fortune server. Example: the pattern \"myorg/fortune\" matches identities with names \"myorg/fortune\" or \"myorg\". If the flag is absent then the default pattern \"*\" matches all identities.")
+ accountMountTableName string
+)
+
+const bankMountTableName string = "veyron/bank"
+
+// Parses str and returns a nonnegative integer
+func getInt(str string, name string) (int64, bool) {
+ v, err := strconv.ParseInt(str, 0, 64)
+ if err != nil {
+ fmt.Printf("given %s %s was not an integer: %s\n", name, str, err)
+ return 0, true
+ }
+ return v, false
+}
+
+func main() {
+ // Create the Veyron runtime using VEYRON_IDENTITY
+ runtime := rt.Init()
+ log := runtime.Logger()
+
+ // Construct a new stub that binds to serverEndpoint without
+ // using the name service
+ var bankServer bank.Bank
+ var err error
+ if *address != "" {
+ bankServer, err = bank.BindBank(naming.JoinAddressName(*address, "//bank"))
+ } else {
+ bankServer, err = bank.BindBank("veyron/bank")
+ }
+ if err != nil {
+ log.Fatal("error binding to server: ", err)
+ }
+
+ // First, Connect to the bank to retrieve the location you should bind to.
+ newIdentity, bankAccountNumber, err := bankServer.Connect(runtime.TODOContext(), veyron2.RemoteID(*serverPattern))
+ if err != nil {
+ log.Fatalf("%s.Connect failed: %s\n", bankMountTableName, err)
+ }
+ fmt.Printf("Successfully connected to the bank with account: %d\n", bankAccountNumber)
+
+ client := runtime.Client()
+ // If you got a new identity, you should update your PrivateID and make a new client with that identity.
+ if newIdentity != "" {
+ // Decode the new identity
+ var newPublicID security.PublicID
+ err := idutil.Base64VomDecode(newIdentity, &newPublicID)
+ if err != nil {
+ log.Fatalf("failed to decode the given public id: %s\n", err)
+ }
+
+ // Derive the new PrivateID
+ derivedIdentity, err := runtime.Identity().Derive(newPublicID)
+ if err != nil {
+ log.Fatalf("failed to derive identity: %s\n", err)
+ }
+
+ // Update the PrivateID at VEYRON_IDENTITY
+ path := os.Getenv("VEYRON_IDENTITY")
+ f, err := os.OpenFile(path, os.O_WRONLY, 0600)
+ if err != nil {
+ log.Fatalf("failed to open identity file for writing: %s\n", err)
+ }
+ err = security.SaveIdentity(f, derivedIdentity)
+ if err != nil {
+ log.Fatalf("failed to save identity: %s\n", err)
+ }
+ err = f.Close()
+ if err != nil {
+ log.Fatalf("could not close file %q, %s\n", path, err)
+ }
+
+ // Make a NewClient and update the other one. Do not close the old client; we need its connection to the Mount Table.
+ client, err = runtime.NewClient(veyron2.LocalID(derivedIdentity))
+ if err != nil {
+ log.Fatalf("failed to create new client: %s\n", err)
+ }
+ }
+
+ // Bind to the bank account service
+ accountMountTableName = fmt.Sprintf("veyron/bank/%d", bankAccountNumber)
+ bindLocation := fmt.Sprintf("//bank/%d", bankAccountNumber)
+ var accountServer bank.BankAccount
+ if *address != "" { // Connect directly to the server's endpoint
+ accountServer, err = bank.BindBankAccount(naming.JoinAddressName(*address, bindLocation), client)
+ } else { // Use the Mount Table to connect to the server
+ accountServer, err = bank.BindBankAccount(accountMountTableName, client)
+ }
+ if err != nil {
+ log.Fatalf("error binding to server: ", err)
+ }
+
+ // Read commands from standard input until the user decides to quit/exit.
+ end := false
+ for !end {
+ fmt.Print("Your command: ")
+
+ // Read input from user
+ in := bufio.NewReader(os.Stdin)
+ input, _ := in.ReadString('\n')
+ commands := strings.Fields(input)
+
+ if len(commands) == 0 {
+ fmt.Println("Please enter a command. 'help' displays the list of commands.")
+ continue
+ }
+
+ switch commands[0] {
+ case "bankAccountNumber":
+ fmt.Printf("Your bank account number is %d\n", bankAccountNumber)
+ case "deposit":
+ if len(commands) < 2 {
+ fmt.Println("deposit takes an amount")
+ break
+ }
+ amount, e := getInt(commands[1], "amount")
+ if e {
+ break
+ }
+ err := accountServer.Deposit(runtime.TODOContext(), amount, veyron2.RemoteID(*serverPattern))
+ if err != nil {
+ fmt.Printf("%s.Deposit failed: %s\n", accountMountTableName, err)
+ break
+ }
+ fmt.Printf("Deposited %d\n", amount)
+ case "withdraw":
+ if len(commands) < 2 {
+ fmt.Println("withdraw takes an amount")
+ break
+ }
+ amount, e := getInt(commands[1], "amount")
+ if e {
+ break
+ }
+ err := accountServer.Withdraw(runtime.TODOContext(), amount, veyron2.RemoteID(*serverPattern))
+ if err != nil {
+ fmt.Printf("%s.Withdraw failed: %s\n", accountMountTableName, err)
+ break
+ }
+ fmt.Printf("Withdrew %d\n", amount)
+ case "transfer":
+ if len(commands) < 3 {
+ fmt.Println("transfer takes an account number and an amount")
+ break
+ }
+ accountNumber, e1 := getInt(commands[1], "account number")
+ amount, e2 := getInt(commands[2], "amount")
+ if e1 || e2 {
+ break
+ }
+ err := accountServer.Transfer(runtime.TODOContext(), accountNumber, amount, veyron2.RemoteID(*serverPattern))
+ if err != nil {
+ fmt.Printf("%s.Transfer failed: %s\n", accountMountTableName, err)
+ break
+ }
+ fmt.Printf("Transferred %d to %d\n", amount, accountNumber)
+ case "balance":
+ balance, err := accountServer.Balance(runtime.TODOContext(), veyron2.RemoteID(*serverPattern))
+ if err != nil {
+ fmt.Printf("%s.Balance failed: %s\n", accountMountTableName, err)
+ break
+ }
+ fmt.Printf("User has balance %d\n", balance)
+ case "help":
+ fmt.Println("You can do the following actions:")
+ fmt.Println("bankAccountNumber: check your account number")
+ fmt.Println("balance: check your account balance")
+ fmt.Println("deposit [N>=0]: deposit money into your account")
+ fmt.Println("withdraw [N>=0]: withdraw money from your account")
+ fmt.Println("transfer [account number] [N>=0]: transfer money to another account")
+ fmt.Println("quit: quit the program")
+ fmt.Println("exit: also quits the program")
+ case "exit", "quit":
+ fmt.Println("Quitting...")
+ end = true
+ default:
+ fmt.Printf("Unknown command: %s\n", commands[0])
+ }
+ }
+}
diff --git a/examples/bank/pbankd/main.go b/examples/bank/pbankd/main.go
new file mode 100644
index 0000000..9e27a8b
--- /dev/null
+++ b/examples/bank/pbankd/main.go
@@ -0,0 +1,439 @@
+// Binary pbankd is a simple implementation of the bank service.
+// Binary bank clients can connect to this bank service to manage virtual bank
+// accounts. Unlike bankd, pbankd uses the Veyron Store. It can recover user
+// data after a crash, but it must always connect to the stored service.
+// Unlike bankd, pbankd prevents race conditions with transactions.
+package main
+
+import (
+ "errors"
+ "flag"
+ "fmt"
+ "math/rand"
+ "os"
+ "os/user"
+ "path/filepath"
+ "reflect"
+ "regexp"
+ "strings"
+ "time"
+
+ "veyron/examples/bank"
+ "veyron/examples/bank/schema"
+ "veyron/lib/signals"
+ "veyron/security/caveat"
+ idutil "veyron/services/identity/util"
+
+ "veyron2"
+ "veyron2/ipc"
+ "veyron2/rt"
+ "veyron2/security"
+ "veyron2/storage"
+ "veyron2/storage/vstore"
+ "veyron2/storage/vstore/primitives"
+ "veyron2/vlog"
+)
+
+// Duration of a bank account blessing, intended to be very long.
+const BLESS_DURATION = 24 * 10000 * time.Hour
+
+// Ensure that account numbers are all 6 digits long.
+const MIN_ACCOUNT_NUMBER = 100000
+const MAX_ACCOUNT_NUMBER = 999999
+const SUFFIX_REGEXP = "/[0-9]{6}"
+
+// Where we will store the bank in the store database.
+const BANK_ROOT string = "/Bank"
+
+var (
+ storeName string
+ ACCOUNTS string
+ runtime veyron2.Runtime
+)
+
+func init() {
+ username := "unknown"
+ if u, err := user.Current(); err == nil {
+ username = u.Username
+ }
+ hostname := "unknown"
+ if h, err := os.Hostname(); err == nil {
+ hostname = h
+ }
+ dir := "global/vstore/" + hostname + "/" + username
+
+ // Parse the flags (variableName, flagName, defaultValue, description)
+ flag.StringVar(&storeName, "store", dir, "Name of the Veyron store")
+
+ // Set the random seed to the current time to increase psuedorandomness.
+ rand.Seed(time.Now().Unix())
+
+ // Set the name for the ACCOUNTS 'constant'. TODO(alexfandrianto): Is there a better way to know the field is named "Accounts"?
+ ACCOUNTS = reflect.TypeOf(schema.Bank{}).Field(0).Name
+}
+
+// The following struct and functions handle construction of the persistent bank.
+type pbankd struct {
+ // Pointer to the store
+ store storage.Store
+
+ // Current Transaction
+ transaction storage.Transaction
+
+ // The bank's private ID (used for blessing)
+ ID security.PrivateID
+}
+
+// newPbankd creates a new persistent bank structure.
+func newPbankd(store storage.Store, identity security.PrivateID) *pbankd {
+ b := &pbankd{
+ store: store,
+ ID: identity,
+ }
+ return b
+}
+
+// InitializeBank bank details in the store; currently only initializes the root.
+func (b *pbankd) initializeBank() {
+ b.newTransaction()
+ b.initializeBankRoot()
+ if err := b.commit(); err != nil {
+ vlog.Fatal(err)
+ }
+}
+
+// initializeBankRoot prepares the bank root as BANK_ROOT if it isn't yet in the Veyron store.
+func (b *pbankd) initializeBankRoot() {
+ // Create parent directories for the bank root, if necessary
+ l := strings.Split(BANK_ROOT, "/")
+ fmt.Println(l)
+ for i, _ := range l {
+ fmt.Println(i)
+ prefix := filepath.Join(l[:i]...)
+ o := b.store.Bind(prefix)
+ if exist, err := o.Exists(runtime.TODOContext(), b.transaction); err != nil {
+ vlog.Infof("Error checking existence at %q: %s", prefix, err)
+ } else if !exist {
+ if _, err := o.Put(runtime.TODOContext(), b.transaction, &schema.Dir{}); err != nil {
+ vlog.Infof("Error creating parent %q: %s", prefix, err)
+ }
+ fmt.Printf("%q was created!\n", prefix)
+ } else {
+ fmt.Printf("%q was already present in the store.\n", prefix)
+ }
+ }
+
+ // Add the bank schema to the store at BANK_ROOT, if necessary
+ o := b.store.Bind(BANK_ROOT)
+ if exist, err := o.Exists(runtime.TODOContext(), b.transaction); err != nil {
+ vlog.Infof("Error checking existence at %q: %s", BANK_ROOT, err)
+ } else if !exist {
+ _, err := o.Put(runtime.TODOContext(), b.transaction, &schema.Bank{})
+ if err != nil {
+ vlog.Infof("Error creating bank at %q: %s", BANK_ROOT, err)
+ }
+ }
+}
+
+// Register creates an account for a new user with the given bankName.
+func (b *pbankd) Connect(context ipc.ServerContext) (string, int64, error) {
+ // Check if the RemoteID() has been blessed by the bank
+ if num := getBankAccountNumber(context); num != 0 {
+ // Look up the user and return their bank account number
+ fmt.Println("This client is blessed!")
+ fmt.Printf("ID: %d\n", num)
+ return "", num, nil
+ } else {
+ fmt.Println("This client isn't blessed. Let's bless them!")
+ // Use the store
+ b.newTransaction()
+
+ // Keep rolling until we get an unseen number
+ randID := rand.Int63n(MAX_ACCOUNT_NUMBER-MIN_ACCOUNT_NUMBER) + MIN_ACCOUNT_NUMBER
+ for b.isUser(randID) {
+ randID = rand.Int63n(MAX_ACCOUNT_NUMBER-MIN_ACCOUNT_NUMBER) + MIN_ACCOUNT_NUMBER
+ }
+ fmt.Printf("ID: %d\n", randID)
+
+ // Bless the user
+ pp := security.PrincipalPattern(context.LocalID().Names()[0])
+ pID, err := b.ID.Bless(
+ context.RemoteID(),
+ fmt.Sprintf("%d", randID),
+ BLESS_DURATION,
+ []security.ServiceCaveat{security.UniversalCaveat(caveat.PeerIdentity{pp})},
+ )
+ if err != nil {
+ vlog.Fatal(err)
+ }
+
+ // Encode the public ID
+ enc, err := idutil.Base64VomEncode(pID)
+ if err != nil {
+ vlog.Fatal(err)
+ }
+
+ // Store the user into the database
+ b.registerNewUser(randID)
+ err = b.commit()
+ if err != nil {
+ vlog.Fatal(err)
+ }
+
+ // Ensure the new user is a user before returning the blessing and ID
+ if b.isUser(randID) {
+ return enc, randID, nil
+ }
+ return "", 0, fmt.Errorf("failed to register user")
+ }
+}
+
+// Deposit adds the amount given to this account.
+func (b *pbankd) Deposit(context ipc.ServerContext, amount int64) error {
+ user := getBankAccountNumber(context)
+ if user == 0 {
+ return fmt.Errorf("couldn't retrieve account number")
+ }
+ b.newTransaction()
+ if !b.isUser(user) {
+ return fmt.Errorf("user isn't registered")
+ } else if amount < 0 {
+ return fmt.Errorf("deposit amount %d is negative", amount)
+ }
+ b.changeBalance(user, amount)
+ return b.commit()
+}
+
+// Withdraw reduces the amount given from this account.
+func (b *pbankd) Withdraw(context ipc.ServerContext, amount int64) error {
+ user := getBankAccountNumber(context)
+ if user == 0 {
+ return fmt.Errorf("couldn't retrieve account number")
+ }
+ b.newTransaction()
+ if !b.isUser(user) {
+ return fmt.Errorf("user isn't registered")
+ } else if amount < 0 {
+ return fmt.Errorf("withdraw amount %d is negative", amount)
+ } else if balance := b.checkBalance(user); amount > balance {
+ return fmt.Errorf("withdraw amount %d exceeds balance %d", amount, balance)
+ }
+ b.changeBalance(user, -amount)
+ return b.commit()
+}
+
+// Transfer moves the amount given to the receiver.
+func (b *pbankd) Transfer(context ipc.ServerContext, accountNumber int64, amount int64) error {
+ user := getBankAccountNumber(context)
+ if user == 0 {
+ return fmt.Errorf("couldn't retrieve account number")
+ }
+ b.newTransaction()
+ if !b.isUser(user) {
+ return fmt.Errorf("user isn't registered")
+ } else if !b.isUser(accountNumber) {
+ return fmt.Errorf("%d isn't registered", accountNumber)
+ } else if amount < 0 {
+ return fmt.Errorf("transfer amount %d is negative", amount)
+ } else if balance := b.checkBalance(user); amount > balance {
+ return fmt.Errorf("transfer amount %d exceeds balance %d", amount, balance)
+ }
+ b.changeBalance(user, -amount)
+ b.changeBalance(accountNumber, amount)
+ return b.commit()
+}
+
+// Balance returns the amount stored by the given user.
+// Throws an error if the user is invalid.
+func (b *pbankd) Balance(context ipc.ServerContext) (int64, error) {
+ user := getBankAccountNumber(context)
+ if user == 0 {
+ return 0, fmt.Errorf("couldn't retrieve account number")
+ }
+ if !b.isUser(user) {
+ return 0, fmt.Errorf("user isn't registered")
+ }
+ return b.checkBalance(user), nil
+}
+
+/*
+ Helper functions for the persistent bank service that deal with store access.
+*/
+
+// newTransaction starts a new transaction.
+func (b *pbankd) newTransaction() {
+ b.transaction = primitives.NewTransaction(runtime.TODOContext())
+}
+
+// commit commits the current transaction.
+func (b *pbankd) commit() error {
+ err := b.transaction.Commit(runtime.TODOContext())
+ b.transaction = nil
+ if err != nil {
+ return fmt.Errorf("Failed to commit transaction: %s", err)
+ }
+ return nil
+}
+
+// isUser helps determine if the given user is part of the system or not.
+func (b *pbankd) isUser(accountNumber int64) bool {
+ // If this is a user, their location in the store should exist.
+ prefix := filepath.Join(BANK_ROOT, ACCOUNTS, fmt.Sprintf("%d", accountNumber))
+ o := b.store.Bind(prefix)
+ exist, err := o.Exists(runtime.TODOContext(), b.transaction)
+ if err != nil {
+ vlog.Infof("Error checking existence at %s: %s", prefix, err)
+ return false
+ }
+ return exist
+}
+
+// Obtains the bank account number of the user. Returns 0 if it could not be found.
+func getBankAccountNumber(context ipc.ServerContext) int64 {
+ bankName := context.LocalID().Names()[0]
+
+ // Untrusted clients have no names.
+ if len(context.RemoteID().Names()) == 0 {
+ return 0
+ }
+
+ // Otherwise, extract the account number from the name.
+ name := context.RemoteID().Names()[0]
+ if match, err := regexp.MatchString(bankName+SUFFIX_REGEXP, name); err != nil {
+ vlog.Infof("MatchString error: %s", err)
+ return 0
+ } else if !match {
+ vlog.Infof("No matching name found")
+ return 0
+ }
+ var v int64
+ _, err := fmt.Sscanf(name, bankName+"/%d", &v)
+ if err != nil {
+ vlog.Infof("Failure to parse ID from %s: %s", name, err)
+ return 0
+ }
+ return v
+}
+
+// registerNewUser adds the user to the system under the specified name and returns success.
+func (b *pbankd) registerNewUser(user int64) {
+ // Create the user's account
+ prefix := filepath.Join(BANK_ROOT, ACCOUNTS, fmt.Sprintf("%d", user))
+ o := b.store.Bind(prefix)
+ if _, err := o.Put(runtime.TODOContext(), b.transaction, int64(0)); err != nil {
+ vlog.Infof("Error creating %s: %s", prefix, err)
+ }
+}
+
+// checkBalance gets the user's balance from the store
+func (b *pbankd) checkBalance(user int64) int64 {
+ prefix := filepath.Join(BANK_ROOT, ACCOUNTS, fmt.Sprintf("%d", user))
+ o := b.store.Bind(prefix)
+ e, err := o.Get(runtime.TODOContext(), b.transaction)
+ if err != nil {
+ vlog.Infof("Error getting %s: %s", prefix, err)
+ }
+ value, _ := e.Value.(int64)
+ return value
+}
+
+// changeBalance modifies the user's balance in the store
+func (b *pbankd) changeBalance(user int64, amount int64) {
+ prefix := filepath.Join(BANK_ROOT, ACCOUNTS, fmt.Sprintf("%d", user))
+ o := b.store.Bind(prefix)
+ e, err := o.Get(runtime.TODOContext(), b.transaction)
+ if err != nil {
+ vlog.Infof("Error getting %s: %s", prefix, err)
+ }
+ if _, err := o.Put(runtime.TODOContext(), b.transaction, e.Value.(int64)+amount); err != nil {
+ vlog.Infof("Error changing %s: %s", prefix, err)
+ }
+}
+
+// This custom bank dispatcher has two interfaces with distinct authorizers.
+func newBankDispatcher(bankServer interface{}, bankAccountServer interface{}, authBank security.Authorizer, authBankAccount security.Authorizer) ipc.Dispatcher {
+ return BankDispatcher{ipc.ReflectInvoker(bankServer), ipc.ReflectInvoker(bankAccountServer), authBank, authBankAccount}
+}
+
+type BankDispatcher struct {
+ invokerBank ipc.Invoker
+ invokerBankAccount ipc.Invoker
+ authBank security.Authorizer
+ authBankAccount security.Authorizer
+}
+
+func (d BankDispatcher) Lookup(suffix string) (ipc.Invoker, security.Authorizer, error) {
+ fmt.Println("Dispatcher Lookup Suffix:", suffix)
+ if suffix != "" {
+ return d.invokerBankAccount, d.authBankAccount, nil
+ }
+ return d.invokerBank, d.authBank, nil
+}
+
+// The custom account authorizer checks if the RemoteID matches a regexp pattern and allows only Reads and Writes.
+type AccountAuthorizer string
+
+func (aa AccountAuthorizer) Authorize(ctx security.Context) error {
+ name := ctx.RemoteID().Names()[0]
+ match, err := regexp.MatchString(string(aa), name)
+ fmt.Printf("Authorizing for Account %s %t\n", name, match)
+ if err != nil {
+ return err
+ }
+ if match {
+ if ctx.Label() != security.ReadLabel && ctx.Label() != security.WriteLabel {
+ return errors.New("unauthorized; may only read or write")
+ }
+ return nil
+ }
+ return errors.New("unauthorized to access account")
+}
+
+func main() {
+ // Create a new server instance.
+ runtime = rt.Init()
+ s, err := runtime.NewServer()
+ if err != nil {
+ vlog.Fatal("failure creating server: ", err)
+ }
+
+ // Connect to the Veyron Store
+ vlog.Infof("Binding to store on %s", storeName)
+ st, err := vstore.New(storeName)
+ if err != nil {
+ vlog.Fatalf("Can't connect to store: %s: %s", storeName, err)
+ }
+
+ // Create the bank server and bank account server stubs, using the store connection
+ pbankd := newPbankd(st, runtime.Identity())
+ pbankd.initializeBank()
+ bankServer := bank.NewServerBank(pbankd)
+ bankAccountServer := bank.NewServerBankAccount(pbankd)
+
+ // Setup bank and account authorizers.
+ bankAuth := security.NewACLAuthorizer(security.ACL{security.AllPrincipals: security.LabelSet(security.ReadLabel | security.WriteLabel)})
+ bankAccountAuth := AccountAuthorizer(runtime.Identity().PublicID().Names()[0] + SUFFIX_REGEXP)
+
+ // Register the "bank" prefix with a bank dispatcher.
+ if err := s.Register("bank", newBankDispatcher(bankServer, bankAccountServer, bankAuth, bankAccountAuth)); err != nil {
+ vlog.Fatal("error registering service: ", err)
+ }
+
+ // Create an endpoint and begin listening.
+ endpoint, err := s.Listen("tcp", "127.0.0.1:0")
+ if err == nil {
+ fmt.Printf("Listening at: %v\n", endpoint)
+ } else {
+ vlog.Fatal("error listening to service: ", err)
+ }
+
+ // Publish the service in the mount table.
+ mountName := "veyron"
+ fmt.Printf("Mounting bank on %s, endpoint /%s\n", mountName, endpoint)
+ if err := s.Publish(mountName); err != nil {
+ vlog.Fatal("s.Publish() failed: ", err)
+ }
+
+ // Wait forever.
+ <-signals.ShutdownOnSignals()
+}
diff --git a/examples/bank/schema/init.go b/examples/bank/schema/init.go
new file mode 100644
index 0000000..2040e0f
--- /dev/null
+++ b/examples/bank/schema/init.go
@@ -0,0 +1,11 @@
+// This schema registers structs used in the bank example to the VOM for the Veyron store.
+package schema
+
+import (
+ "veyron2/vom"
+)
+
+func init() {
+ vom.Register(&Dir{})
+ vom.Register(&Bank{})
+}
diff --git a/examples/bank/schema/schema.vdl b/examples/bank/schema/schema.vdl
new file mode 100644
index 0000000..0a34090
--- /dev/null
+++ b/examples/bank/schema/schema.vdl
@@ -0,0 +1,13 @@
+package schema
+
+// Dir is used to represent directories.
+type Dir struct{
+ // TODO(jyh): The IDL does not recognize empty structs. Fix it and remove this
+ // useless field.
+ X byte
+}
+
+// Bank is used to represent the information stored in a bank.
+type Bank struct {
+ Accounts map[string]int64
+}
diff --git a/examples/bank/schema/schema.vdl.go b/examples/bank/schema/schema.vdl.go
new file mode 100644
index 0000000..8d51fc8
--- /dev/null
+++ b/examples/bank/schema/schema.vdl.go
@@ -0,0 +1,16 @@
+// This file was auto-generated by the veyron vdl tool.
+// Source: schema.vdl
+
+package schema
+
+// Dir is used to represent directories.
+type Dir struct {
+ // TODO(jyh): The IDL does not recognize empty structs. Fix it and remove this
+ // useless field.
+ X byte
+}
+
+// Bank is used to represent the information stored in a bank.
+type Bank struct {
+ Accounts map[string]int64
+}
diff --git a/examples/boxes/android/src/boxesp2p/main.go b/examples/boxes/android/src/boxesp2p/main.go
index e2359d9..6be5812 100644
--- a/examples/boxes/android/src/boxesp2p/main.go
+++ b/examples/boxes/android/src/boxesp2p/main.go
@@ -59,7 +59,6 @@
import (
"bytes"
"fmt"
- "io"
"net"
"os"
"runtime"
@@ -94,7 +93,7 @@
runtime veyron2.Runtime
store *storage.Server
ipc ipc.Server
- drawStream boxes.DrawInterfaceDrawStream
+ drawStream boxes.DrawInterfaceServiceDrawStream
signalling boxes.BoxSignalling
boxList chan boxes.Box
myIPAddr string
@@ -135,54 +134,20 @@
func (gs *goState) SyncBoxes(context ipc.ServerContext) error {
// Get the endpoint of the remote process
- endPt, err := inaming.NewEndpoint(context.RemoteAddr().String())
+ endPt, err := inaming.NewEndpoint(context.RemoteEndpoint().String())
if err != nil {
return err
}
// Launch the sync service
initSyncService(endPt.Addr().String())
- // Watch the store for any box updates
- go gs.watchStore()
+ // Watch/Update the store for any box changes
+ go gs.monitorStore()
return nil
}
-func (gs *goState) watchStore() {
- rst, err := raw.BindStore(naming.JoinAddressName(gs.storeEndpoint, raw.RawStoreSuffix))
- if err != nil {
- panic(fmt.Errorf("Failed to Bind Store:%v", err))
- }
- ctx := gs.runtime.NewContext()
- req := watch.Request{Query: query.Query{}}
- stream, err := rst.Watch(ctx, req, veyron2.CallTimeout(ipc.NoTimeout))
- if err != nil {
- panic(fmt.Errorf("Can't watch store: %s: %s", gs.storeEndpoint, err))
- }
- for {
- cb, err := stream.Recv()
- if err != nil {
- panic(fmt.Errorf("Can't receive watch event: %s: %s", gs.storeEndpoint, err))
- }
- for _, change := range cb.Changes {
- if mu, ok := change.Value.(*raw.Mutation); ok && len(mu.Dir) == 0 {
- if box, ok := mu.Value.(boxes.Box); ok {
- nativeJava.addBox(&box)
- }
- }
- }
- }
-}
-
func (gs *goState) Draw(context ipc.ServerContext, stream boxes.DrawInterfaceServiceDrawStream) error {
- for {
- box, err := stream.Recv()
- if err == io.EOF {
- break
- }
- if err != nil {
- return err
- }
- nativeJava.addBox(&box)
- }
+ gs.drawStream = stream
+ gs.streamBoxesLoop()
return nil
}
@@ -190,7 +155,18 @@
gs.boxList <- box
}
-func (gs *goState) sendDrawLoop() {
+func (gs *goState) streamBoxesLoop() {
+ // Loop to receive boxes from remote peer
+ go func() {
+ for {
+ box, err := gs.drawStream.Recv()
+ if err != nil {
+ return
+ }
+ nativeJava.addBox(&box)
+ }
+ }()
+ // Loop to send boxes to remote peer
for {
if err := gs.drawStream.Send(<-gs.boxList); err != nil {
break
@@ -198,9 +174,35 @@
}
}
-func (gs *goState) updateStore(endpoint string) {
- initSyncService(endpoint)
+func (gs *goState) monitorStore() {
ctx := gs.runtime.NewContext()
+
+ // Watch for any box updates from the store
+ go func() {
+ rst, err := raw.BindStore(naming.JoinAddressName(gs.storeEndpoint, raw.RawStoreSuffix))
+ if err != nil {
+ panic(fmt.Errorf("Failed to raw.Bind Store:%v", err))
+ }
+ req := watch.Request{Query: query.Query{}}
+ stream, err := rst.Watch(ctx, req, veyron2.CallTimeout(ipc.NoTimeout))
+ if err != nil {
+ panic(fmt.Errorf("Can't watch store: %s: %s", gs.storeEndpoint, err))
+ }
+ for {
+ cb, err := stream.Recv()
+ if err != nil {
+ panic(fmt.Errorf("Can't receive watch event: %s: %s", gs.storeEndpoint, err))
+ }
+ for _, change := range cb.Changes {
+ if mu, ok := change.Value.(*raw.Mutation); ok && len(mu.Dir) == 0 {
+ if box, ok := mu.Value.(boxes.Box); ok && box.DeviceId != gs.myIPAddr {
+ nativeJava.addBox(&box)
+ }
+ }
+ }
+ }
+ }()
+ // Send any box updates to the store
vst, err := vstore.New(gs.storeEndpoint)
if err != nil {
panic(fmt.Errorf("Failed to init veyron store:%v", err))
@@ -232,7 +234,6 @@
if err != nil {
panic(fmt.Errorf("Failed runtime.NewServer:%v", err))
}
-
drawServer := boxes.NewServerDrawInterface(gs)
if err := srv.Register("draw", ipc.SoloDispatcher(drawServer, auth)); err != nil {
panic(fmt.Errorf("Failed Register:%v", err))
@@ -255,12 +256,11 @@
if err != nil {
panic(fmt.Errorf("failed BindDrawInterface:%v", err))
}
- if gs.drawStream, err = drawInterface.Draw(gs.runtime.TODOContext()); err != nil {
- panic(fmt.Errorf("failed to get handle to Draw stream:%v\n", err))
- }
- gs.boxList = make(chan boxes.Box, 256)
if !useStoreService {
- go gs.sendDrawLoop()
+ if gs.drawStream, err = drawInterface.Draw(gs.runtime.TODOContext()); err != nil {
+ panic(fmt.Errorf("failed to get handle to Draw stream:%v\n", err))
+ }
+ go gs.streamBoxesLoop()
} else {
// Initialize the store sync service that listens for updates from a peer
endpoint, err := inaming.NewEndpoint(endpointStr)
@@ -270,7 +270,8 @@
if err = drawInterface.SyncBoxes(gs.runtime.TODOContext()); err != nil {
panic(fmt.Errorf("failed to setup remote sync service:%v", err))
}
- go gs.updateStore(endpoint.Addr().String())
+ initSyncService(endpoint.Addr().String())
+ go gs.monitorStore()
}
}
@@ -293,7 +294,7 @@
//export Java_com_boxes_GoNative_sendDrawBox
func Java_com_boxes_GoNative_sendDrawBox(env *C.JNIEnv, class C.jclass,
boxId C.jstring, ox C.jfloat, oy C.jfloat, cx C.jfloat, cy C.jfloat) {
- gs.sendBox(boxes.Box{BoxId: C.GoString(C.JToCString(env, boxId)), Points: [4]float32{float32(ox), float32(oy), float32(cx), float32(cy)}})
+ gs.sendBox(boxes.Box{DeviceId: gs.myIPAddr, BoxId: C.GoString(C.JToCString(env, boxId)), Points: [4]float32{float32(ox), float32(oy), float32(cx), float32(cy)}})
}
//export Java_com_boxes_GoNative_registerAddBox
@@ -377,6 +378,8 @@
panic(fmt.Errorf("Failed to remove remnant store files:%v\n", err))
}
+ gs.boxList = make(chan boxes.Box, 256)
+
// Initialize veyron runtime and bind to the signalling server used to rendezvous with
// another peer device. TODO(gauthamt): Switch to using the nameserver for signalling.
gs.runtime = rt.Init(veyron2.LocalID(privateID))
diff --git a/examples/boxes/boxes.vdl b/examples/boxes/boxes.vdl
index b34341d..1736cd4 100644
--- a/examples/boxes/boxes.vdl
+++ b/examples/boxes/boxes.vdl
@@ -13,6 +13,8 @@
// Box describes the name and co-ordinates of a given box that
// is displayed in the View of a peer device.
type Box struct {
+ // DeviceID that generated the box
+ DeviceId string
// BoxId is a unique name for a box
BoxId string
// Points are the co-ordinates of a given box
diff --git a/examples/boxes/boxes.vdl.go b/examples/boxes/boxes.vdl.go
index f6a561c..5f73ee5 100644
--- a/examples/boxes/boxes.vdl.go
+++ b/examples/boxes/boxes.vdl.go
@@ -19,6 +19,8 @@
// Box describes the name and co-ordinates of a given box that
// is displayed in the View of a peer device.
type Box struct {
+ // DeviceID that generated the box
+ DeviceId string
// BoxId is a unique name for a box
BoxId string
// Points are the co-ordinates of a given box
@@ -464,6 +466,7 @@
result.TypeDefs = []_gen_vdl.Any{
_gen_wiretype.NamedPrimitiveType{Type: 0x1, Name: "error", Tags: []string(nil)}, _gen_wiretype.ArrayType{Elem: 0x19, Len: 0x4, Name: "", Tags: []string(nil)}, _gen_wiretype.StructType{
[]_gen_wiretype.FieldType{
+ _gen_wiretype.FieldType{Type: 0x3, Name: "DeviceId"},
_gen_wiretype.FieldType{Type: 0x3, Name: "BoxId"},
_gen_wiretype.FieldType{Type: 0x42, Name: "Points"},
},
diff --git a/examples/pipetobrowser/.gitignore b/examples/pipetobrowser/.gitignore
index 4b85d71..1505d62 100644
--- a/examples/pipetobrowser/.gitignore
+++ b/examples/pipetobrowser/.gitignore
@@ -1,2 +1,2 @@
browser/libs/vendor/veyron
-.DS_Store
\ No newline at end of file
+browser/libs/vendor/polymer
\ No newline at end of file
diff --git a/examples/pipetobrowser/Makefile b/examples/pipetobrowser/Makefile
index c8411e6..07a4bc8 100644
--- a/examples/pipetobrowser/Makefile
+++ b/examples/pipetobrowser/Makefile
@@ -19,15 +19,20 @@
VEYRON_IDENTITY_PATH=/tmp/p2b_identity
# Builds everything
-default: build
-build: buildbrowser
+all: browser/libs/vendor/polymer browser/libs/vendor/veyron
-# Builds browser version of FortuneJS
-buildbrowser:
+browser/libs/vendor/polymer:
+ cp -rf $(VEYRON_ROOT)/third_party/javascript/polymer ./browser/libs/vendor/polymer
+
+browser/libs/vendor/veyron:
(cd $(VEYRON_JS_API) && ./vgrunt build) && \
mkdir -p ./browser/libs/vendor/veyron && \
cp -rf $(VEYRON_JS_API)/dist/*.* ./browser/libs/vendor/veyron
+clean:
+ rm -rf ./browser/libs/vendor/polymer
+ rm -rf browser/libs/vendor/veyron
+
# Deploys Veyron daemons
daemons:
@if [[ ! -e $(VEYRON_PROXY) ]]; then \
@@ -51,3 +56,5 @@
kill `lsof -t -i:$(VEYRON_WSPR_PORT)`; \
kill `lsof -t -i:$(VEYRON_PROXY_PORT)`; \
kill `lsof -t -i:$(VEYRON_STORE_PORT)`
+
+.PHONY: all clean daemons killdaemons browser/libs/vendor/polymer browser/libs/vendor/veyron
\ No newline at end of file
diff --git a/examples/pipetobrowser/README.md b/examples/pipetobrowser/README.md
new file mode 100644
index 0000000..923fc75
--- /dev/null
+++ b/examples/pipetobrowser/README.md
@@ -0,0 +1,72 @@
+**TODO(aghassemi) Finish and clean up documentation, ensure it aligns with Design Doc on Google Drive.**
+
+# Pipe to Browser
+P2B allows one to pipe anything from shell console to the browser. Data being piped to the browser then is displayed in a graphical and formatted way by a "viewer" Viewers are pluggable pieces of code that know how to handle and display a stream of data.
+
+For example one can do:
+
+``
+echo "Hi!" | p2b google/p2b/jane/console
+``
+
+or
+
+``
+cat cat.jpg | p2b -binary google/p2b/jane/image
+``
+
+where **google/p2b/jane** is the Veyron name where p2b service is running in the browser. The suffix **console** or **image** specifies what viewer should be used to display the data.
+
+## Building and Running
+TODO
+
+## Built-in Viewers
+TODO
+
+## How to Write Custom Viewer Plugins
+TODO
+
+## Concepts and Technical Design
+### UI Framework
+#### View
+a View consists of:
+A framework-specific wrapper that exposes the public API (ie. exposed properties and events ) of the View as a JavaScript module. This is what the application uses to interact with the view.
+A Web Component that encapsulates all of the view including rendering, event binding, life-cycle management, attributes binding, etc… The Web Component exposes functionality of the view through properties and events as a DOM object.
+
+Application never interacts with the Web Component part of the view directly. It only uses View’s wrapper API.
+
+**Rationale:**
+Web Component provides the functionality that traditional view frameworks ( e.g. Backbone , AngularJS views ) had to provide. Since a Web Component is a DOM element, it by default provides support for events and attributes. Web Component specification adds life-cycle management ( e.g. knowing when view is rendered, created or removed ), templating, data-binding and encapsulation in a single element. Bringing functionality on par with View frameworks out there.
+
+The wrapper JS object around the Web Component adds a layer of indirection which exposes the public API in a cleaner way, and also hides the DOM object, which should be considered implementation details, from the rest of the application. This would allow us to switch the implementation of the View without changing the application.
+
+#### Actions
+Actions are cohesive pieces of functionality that can be triggered from any other action in a decoupled way by just using the action name. Actions glue views and application services and state.
+
+Action names are a similar concepts to routes and simply provide an indirection through string names to register and call functions. Action handlers, which are functions tied to an action name, are a similar concept to controllers. Using actions to group and call larger, self-contained functionality like page transitions allows the framework to provide undo/back support by using history API or localStorage.
+
+### Pipe To Browser
+
+#### Pipe-Viewer
+When a user sends a pipe request to p2b, the suffix of the Veyron name indicates what **viewer** should be used to display the data. For instance:
+
+``
+ls -l | p2b google/p2b/aghassemi/DataTable
+``
+
+indicates the DataTable viewer should be used to display the data whereas:
+
+``
+ls -l | p2b google/p2b/aghassemi/List
+``
+
+requests List viewer to be used.
+
+A pipe-viewer is an interface defined by p2b as an abstract class. Any viewer that wants to plugin to the system has to inherit from that class. pipe-viewer contract demands that any implementation to have a unique name which is used to find the viewer plugin and a play function that will be called and supplied by a stream object.
+play(stream)needs to return a View or promise of a View that will be appended to the UI by the p2b framework. If a promise, p2b UI will display a loading widget until promise is resolved.
+
+pipe-viewer manager is responsible for finding and loading pipe-viewers on demand based on their name. This on-demand loading allows us to support arbitrary viewers even from external sources. For instance we should be able to support: (not implemented yet)
+
+``
+ls -l | p2b google/p2b/aghassemi/external/HypnoDataTable --viewer-source=http://www.p2bMarketPlace.com/plugins/HypnoDataTable.js
+``
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/actions/README b/examples/pipetobrowser/browser/actions/README
deleted file mode 100644
index daf6a18..0000000
--- a/examples/pipetobrowser/browser/actions/README
+++ /dev/null
@@ -1,6 +0,0 @@
-Actions are cohesive pieces of functionality that can be triggered from any other action in a decoupled way by just using the action name.
-
-Please see documentation in libs/mvc/actions.js for more details about the action concept.
-
-This folder contains modules that define functions to register and trigger application-specific actions.
-These modules glue views and application services and state.
diff --git a/examples/pipetobrowser/browser/actions/add-pipe-viewer.js b/examples/pipetobrowser/browser/actions/add-pipe-viewer.js
new file mode 100644
index 0000000..1919ec2
--- /dev/null
+++ b/examples/pipetobrowser/browser/actions/add-pipe-viewer.js
@@ -0,0 +1,73 @@
+/*
+ * AddPipeViewer action can be used to add a new viewer to the pipes view
+ * this action can be run at anytime and user can be on any view and this action
+ * will still work.
+ * Depending on user preferences, user might be presented with a confirmation
+ * dialog to accept seeing the incoming pipe.
+ * @fileoverview
+ */
+
+import { Logger } from 'libs/logs/logger'
+import { register, trigger } from 'libs/mvc/actions'
+
+import { get as getPipeViewer } from 'pipe-viewers/manager'
+
+import { displayError } from 'actions/display-error'
+import { navigatePipesPage } from 'actions/navigate-pipes-page'
+
+import { LoadingView } from 'views/loading/view'
+
+import { pipesViewInstance } from 'runtime/context'
+
+var log = new Logger('actions/add-pipe-viewer');
+const ACTION_NAME = 'addPipeViewer';
+var pipesPerNameCounter = {};
+
+/*
+ * Registers the add pipe viewer action
+ */
+export function registerAddPipeViewerAction() {
+ register(ACTION_NAME, actionHandler);
+}
+
+/*
+ * Triggers the add pipe viewer action
+ */
+export function addPipeViewer(name, stream) {
+ return trigger(ACTION_NAME, name, stream);
+}
+
+/*
+ * Handles the addPipeViewer action.
+ * @param {string} name Name of the Pipe Viewer that is requested to play the stream.
+ * @param {Veyron.Stream} stream Stream of bytes from the p2b client.
+ *
+ * @private
+ */
+function actionHandler(name, stream) {
+ log.debug('addPipeViewer action triggered');
+
+ // Book keeping of number of pipe-viewers per name, we use this to generate
+ // display names and keys like image #3
+ var count = (pipesPerNameCounter[name] || 0) + 1;
+ pipesPerNameCounter[name] = count;
+ var tabKey = name + count;
+ var tabName = name + ' #' + count;
+
+ // Get the plugin that can render the stream, ask it to play it and display
+ // the element returned by the pipeViewer.
+ getPipeViewer(name).then((pipeViewer) => {
+ return pipeViewer.play(stream);
+ }).then((pipeViewerView) => {
+ // replace the loading view with the actual viewerView
+ pipesViewInstance.replaceTabView(tabKey, pipeViewerView);
+ }).catch((e) => { displayError(e); });
+
+ // Add a new tab and show a loading indicator for now,
+ // then replace the loading view with the actual viewer when ready
+ var loadingView = new LoadingView();
+ pipesViewInstance.addTab(tabKey, tabName, loadingView);
+
+ // Take the user to the pipes view.
+ navigatePipesPage();
+}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/actions/display-error.js b/examples/pipetobrowser/browser/actions/display-error.js
new file mode 100644
index 0000000..89c6b98
--- /dev/null
+++ b/examples/pipetobrowser/browser/actions/display-error.js
@@ -0,0 +1,43 @@
+/*
+ * Error action displays the error page displaying the given error
+ * @fileoverview
+ */
+
+import { Logger } from 'libs/logs/logger'
+import { register, trigger } from 'libs/mvc/actions'
+
+import { ErrorView } from 'views/error/view'
+
+import { page } from 'runtime/context'
+
+var log = new Logger('actions/display-error');
+const ACTION_NAME = 'error';
+
+/*
+ * Registers the error action
+ */
+export function registerDisplayErrorAction() {
+ register(ACTION_NAME, actionHandler);
+}
+
+/*
+ * Triggers the error action
+ */
+export function displayError(err) {
+ return trigger(ACTION_NAME, err);
+}
+
+/*
+ * Handles the error action.
+ *
+ * @private
+ */
+function actionHandler(err) {
+ log.debug('error action triggered');
+
+ // Create an error view
+ var errorView = new ErrorView(err);
+
+ // Display the error view in Home sub-page area
+ page.setSubPageView('home', errorView);
+}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/actions/display-pipe-viewer.js b/examples/pipetobrowser/browser/actions/display-pipe-viewer.js
deleted file mode 100644
index 75c9b6f..0000000
--- a/examples/pipetobrowser/browser/actions/display-pipe-viewer.js
+++ /dev/null
@@ -1,51 +0,0 @@
-import { Logger } from 'libs/logs/logger'
-import { register, trigger } from 'libs/mvc/actions'
-
-import { get as getPipeViewer } from 'pipe-viewers/manager'
-
-import { triggerErrorAction } from 'actions/error'
-
-import { PageView } from 'views/page/view'
-import { PipeViewerPlaceholderView } from 'views/pipe-viewer-placeholder/view'
-
-var log = new Logger('actions/display-pipe-viewer');
-const ACTION_NAME = 'displayPipeViewer';
-
-/*
- * Registers the display pipe viewer action
- */
-export function registerDisplayPipeViewerAction() {
- register(ACTION_NAME, actionHandler);
-}
-
-/*
- * Triggers the display pipe viewer action
- */
-export function triggerDisplayPipeViewerAction(name, stream) {
- return trigger(ACTION_NAME, name, stream);
-}
-
-/*
- * Handles the displayPipeViewer action.
- * @param {string} name Name of the Pipe Viewer that is requested to play the stream.
- * @param {Veyron.Stream} stream Stream of bytes from the p2b client.
- *
- * @private
- */
-function actionHandler(name, stream) {
- log.debug('displayPipeViewer action triggered');
-
- var viewerPlaceholderView = new PipeViewerPlaceholderView();
-
- // Get the plugin that can render the stream, ask it to play it and display
- // the element returned by the pipeViewer.
- getPipeViewer(name).then((pipeViewer) => {
- return pipeViewer.play(stream);
- }).then((viewerView) => {
- viewerPlaceholderView.showViewer(viewerView);
- }).catch((e) => { triggerErrorAction(e); });
-
- // create a page and display the viewer placeholder view in main content area
- var pageView = new PageView();
- pageView.setMainView(viewerPlaceholderView);
-}
diff --git a/examples/pipetobrowser/browser/actions/error.js b/examples/pipetobrowser/browser/actions/error.js
deleted file mode 100644
index 796aa5c..0000000
--- a/examples/pipetobrowser/browser/actions/error.js
+++ /dev/null
@@ -1,39 +0,0 @@
-import { Logger } from 'libs/logs/logger'
-import { register, trigger } from 'libs/mvc/actions'
-
-import { PageView } from 'views/page/view'
-import { ErrorView } from 'views/error/view'
-
-var log = new Logger('actions/error');
-const ACTION_NAME = 'error';
-
-/*
- * Registers the error action
- */
-export function registerErrorAction() {
- register(ACTION_NAME, actionHandler);
-}
-
-/*
- * Triggers the error action
- */
-export function triggerErrorAction(err) {
- return trigger(ACTION_NAME, err);
-}
-
-/*
- * Handles the error action.
- *
- * @private
- */
-function actionHandler(err) {
- log.debug('error action triggered');
-
- // Create an error view
- var errorView = new ErrorView(err);
-
- // create a page and display the error view in main content area
- var pageView = new PageView();
- pageView.setMainView(errorView);
-}
-
diff --git a/examples/pipetobrowser/browser/actions/home.js b/examples/pipetobrowser/browser/actions/home.js
deleted file mode 100644
index 1ae036d..0000000
--- a/examples/pipetobrowser/browser/actions/home.js
+++ /dev/null
@@ -1,60 +0,0 @@
-import { Logger } from 'libs/logs/logger'
-import { register, trigger } from 'libs/mvc/actions'
-
-import { publish, state as publishState } from 'services/pipe-to-browser'
-
-import { triggerErrorAction } from 'actions/error'
-import { triggerDisplayPipeViewerAction } from 'actions/display-pipe-viewer'
-
-import { PageView } from 'views/page/view'
-import { PublishView } from 'views/publish/view'
-
-var log = new Logger('actions/home');
-const ACTION_NAME = 'home';
-
-/*
- * Registers the home action
- */
-export function registerHomeAction() {
- register(ACTION_NAME, actionHandler);
-}
-
-/*
- * Triggers the home action
- */
-export function triggerHomeAction() {
- return trigger(ACTION_NAME);
-}
-
-/*
- * Handles the home action.
- *
- * @private
- */
-function actionHandler() {
- log.debug('home action triggered');
-
- // Create a publish view and bind (dynamic) publish state (publishing, published, name) with the view
- var publishView = new PublishView(publishState);
-
- // Publish p2b when user tells us to do so.
- publishView.onPublishAction((publishName) => {
- publish(publishName, pipeRequestHandler).catch((e) => { triggerErrorAction(e); } );
- });
-
- // create a page and display the publish view in main content area
- var pageView = new PageView();
- pageView.setMainView(publishView);
-}
-
-/*
- * pipeRequestHandler is called the p2b service whenever a new request comes in.
- * We simply delegate to the displayPipeViewer action.
- * @param {string} name Name of the Pipe Viewer that is requested to play the stream.
- * @param {Veyron.Stream} stream Stream of bytes from the p2b client.
- *
- * @private
- */
-function pipeRequestHandler(name, stream) {
- return triggerDisplayPipeViewerAction(name, stream);
-}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/actions/navigate-home-page.js b/examples/pipetobrowser/browser/actions/navigate-home-page.js
new file mode 100644
index 0000000..16f6406
--- /dev/null
+++ b/examples/pipetobrowser/browser/actions/navigate-home-page.js
@@ -0,0 +1,107 @@
+/*
+ * Home action displays the Home page. Home could be status or publish view
+ * depending on the state of the P2B service.
+ * @fileoverview
+ */
+
+import { Logger } from 'libs/logs/logger'
+import { register, trigger } from 'libs/mvc/actions'
+
+import { publish, stopPublishing, state as publishState } from 'services/pipe-to-browser'
+
+import { displayError } from 'actions/display-error'
+import { addPipeViewer } from 'actions/add-pipe-viewer'
+
+import { PublishView } from 'views/publish/view'
+import { StatusView } from 'views/status/view'
+
+import { page } from 'runtime/context'
+
+var log = new Logger('actions/navigate-home-page');
+const ACTION_NAME = 'home';
+
+/*
+ * Registers the home action
+ */
+export function registerNavigateHomePageAction() {
+ register(ACTION_NAME, actionHandler);
+}
+
+/*
+ * Triggers the home action
+ */
+export function navigateHomePage() {
+ return trigger(ACTION_NAME);
+}
+
+/*
+ * Handles the home action.
+ *
+ * @private
+ */
+function actionHandler() {
+ log.debug('home action triggered');
+
+ var mainView;
+
+ // Show status view if already published, otherwise show publish view
+ if (publishState.published) {
+ showStatusView();
+ } else {
+ showPublishView();
+ }
+}
+
+/*
+ * Displays the Status view
+ *
+ * @private
+ */
+function showStatusView() {
+ // Create a status view and bind (dynamic) publish state with the view
+ var statusView = new StatusView(publishState);
+
+ // Stop when user tells us to stop the service
+ statusView.onStopAction(() => {
+ stopPublishing().then(function() {
+ navigateHomePage();
+ }).catch((e) => { displayError(e); });
+ });
+
+ // Display the status view in main content area and select the sidebar item
+ page.title = 'Status';
+ page.setSubPageView('home', statusView);
+}
+
+/*
+ * Displays the Publish view
+ *
+ * @private
+ */
+function showPublishView() {
+ // Create a publish view
+ var publishView = new PublishView();
+
+ // Publish p2b when user tells us to do so and then show status page.
+ publishView.onPublishAction((publishName) => {
+ publish(publishName, pipeRequestHandler).then(function() {
+ showStatusView();
+ }).catch((e) => { displayError(e); });
+ });
+
+ // Display the publish view in main content area and select the sidebar item
+ page.title = 'Publish';
+ page.setSubPageView('home', publishView);
+}
+
+/*
+ * pipeRequestHandler is called by the p2b service whenever a new request comes in.
+ * We simply delegate to the addPipeViewer action.
+ * @param {string} name Name of the Pipe Viewer that is requested to play the stream.
+ * @param {Veyron.Stream} stream Stream of bytes from the p2b client.
+ *
+ * @private
+ */
+function pipeRequestHandler(name, stream) {
+ return addPipeViewer(name, stream);
+}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/actions/navigate-pipes-page.js b/examples/pipetobrowser/browser/actions/navigate-pipes-page.js
new file mode 100644
index 0000000..179725f
--- /dev/null
+++ b/examples/pipetobrowser/browser/actions/navigate-pipes-page.js
@@ -0,0 +1,40 @@
+/*
+ * Pipes action displays the Pipes page. It is normally triggered by clicking
+ * the Pipes navigation item in the side bar
+ * @fileoverview
+ */
+
+import { Logger } from 'libs/logs/logger'
+import { register, trigger } from 'libs/mvc/actions'
+
+import { page, pipesViewInstance } from 'runtime/context'
+
+var log = new Logger('actions/navigate-pipes-page');
+const ACTION_NAME = 'pipes';
+
+/*
+ * Registers the pipes action
+ */
+export function registerNavigatePipesPageAction() {
+ register(ACTION_NAME, actionHandler);
+}
+
+/*
+ * Triggers the pipes action
+ */
+export function navigatePipesPage(err) {
+ return trigger(ACTION_NAME, err);
+}
+
+/*
+ * Handles the pipes action.
+ *
+ * @private
+ */
+function actionHandler() {
+ log.debug('pipes action triggered');
+
+ // display the singleton pipesViewInstance main content area
+ page.title = 'Pipes';
+ page.setSubPageView('pipes', pipesViewInstance);
+}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/app.js b/examples/pipetobrowser/browser/app.js
deleted file mode 100644
index c091581..0000000
--- a/examples/pipetobrowser/browser/app.js
+++ /dev/null
@@ -1,32 +0,0 @@
-import { Logger } from 'libs/logs/logger'
-
-import { registerHomeAction, triggerHomeAction } from 'actions/home'
-import { registerErrorAction } from 'actions/error'
-import { registerDisplayPipeViewerAction } from 'actions/display-pipe-viewer'
-
-var log = new Logger('app');
-
-export function start() {
- log.debug('start called');
-
- // Register the action handlers for the application
- registerActions();
-
- // Start by triggering the home action
- triggerHomeAction();
-}
-
-/*
- * Registers the action handlers for the application.
- * Actions are cohesive pieces of functionality that can be triggered from
- * any other action in a decoupled way by just using the action name.
- *
- * @private
- */
-function registerActions() {
- log.debug('registering actions');
-
- registerHomeAction();
- registerErrorAction();
- registerDisplayPipeViewerAction();
-}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/index.html b/examples/pipetobrowser/browser/index.html
index 318dd4e..6060333 100644
--- a/examples/pipetobrowser/browser/index.html
+++ b/examples/pipetobrowser/browser/index.html
@@ -2,7 +2,9 @@
<html lang="en">
<head>
<meta charset="utf-8">
- <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1, maximum-scale=1">
+ <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0">
+ <meta name="mobile-web-app-capable" content="yes">
+ <meta name="apple-mobile-web-app-capable" content="yes">
<meta name="description" content="Pipe To Browser (p2b) is a utility built with veyron technology that allows piping of stdout and std from console into local or remote browser windows. Different plugins exist to format the incoming data and display them in an appropriate and interactive format.">
<title>Pipe To Browser - because life is too short to stare at unformatted stdout text, and is hard enough already not to have a spell-checker for stdin</title>
@@ -11,21 +13,27 @@
<!-- TODO(aghassemi) For Production - Use Volcanize to combine all components into a single import at build time -->
<link rel="import" href="views/page/component.html">
<link rel="import" href="views/publish/component.html">
+ <link rel="import" href="views/status/component.html">
<link rel="import" href="views/error/component.html">
- <link rel="import" href="views/pipe-viewer-placeholder/component.html">
-</head>
+ <link rel="import" href="views/loading/component.html">
+ <link rel="import" href="views/pipes/component.html">
+ <!-- TODO(aghassemi) Dynamic loading of plugins. Plugins should be able to use a provided module to load web components if they need to. We don't want to load all plugins for no reason! There could be hundreds of them -->
+ <link rel="import" href="pipe-viewers/builtin/console/component.html">
+
+</head>
<body>
- <p2b-page></p2b-page>
+ <!-- These are Browserified NodeJS modules. Bundle at build time into a single file and move to package.json-->
+ <script src="libs/vendor/veyron/veyron.js"></script>
+ <script src="libs/vendor/nodejs/buffer.js"></script>
+ <script src="libs/vendor/nodejs/stream.js"></script>
- <!-- TODO(aghassemi) For Production - Use traceur at built time for ES6 instead -->
+ <!-- TODO(aghassemi) For Production - Use traceur at build time for ES6 instead -->
<script src="libs/vendor/traceur/traceur.js"></script>
<script>traceur.options.experimental = true;</script>
<script src="libs/vendor/es6-module-loader/es6-module-loader.js"></script>
- <script src="libs/vendor/veyron/veyron.js"></script><!-- TODO(aghassemi) ES6 shim for Veyron -->
-
- <script src="init.js"></script>
+ <script src="runtime/init.js"></script>
</body>
</html>
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/libs/README b/examples/pipetobrowser/browser/libs/README
deleted file mode 100644
index 18c6033..0000000
--- a/examples/pipetobrowser/browser/libs/README
+++ /dev/null
@@ -1,5 +0,0 @@
-"libs" includes app-independent modules, whether third-party or internal.
-
-Third-party modules should be inside "vendor"
-
-Modules in "libs" must not depend on anything outside of "libs"
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/libs/utils/array-buffer.js b/examples/pipetobrowser/browser/libs/utils/array-buffer.js
deleted file mode 100644
index 17cee74..0000000
--- a/examples/pipetobrowser/browser/libs/utils/array-buffer.js
+++ /dev/null
@@ -1,9 +0,0 @@
-/*
- * Creates a string, given a sequence of bytes. It assumes UTF-8 encoding.
- * @param {ArrayBuffer} buf array of bytes that represent a UTF-8 string
- */
-export function arrayBufferToString(buf) {
- var encoded = String.fromCharCode.apply(null, buf);
- var decoded = decodeURIComponent(escape(encoded))
- return decoded;
-}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/libs/utils/byte-object-stream-adapter.js b/examples/pipetobrowser/browser/libs/utils/byte-object-stream-adapter.js
new file mode 100644
index 0000000..2484212
--- /dev/null
+++ b/examples/pipetobrowser/browser/libs/utils/byte-object-stream-adapter.js
@@ -0,0 +1,24 @@
+var Transform = require('stream').Transform;
+var Buffer = require('buffer').Buffer;
+// TODO(aghassemi) doesn't look like ES6 and CommonJS modules can use the same
+// syntax to be referenced, but research more, maybe something can be done at
+// built time.
+
+/*
+ * Adapts a stream of byte arrays in object mode to a regular stream of Buffer
+ * @class
+ */
+export class ByteObjectStreamAdapter extends Transform {
+ constructor() {
+ super();
+ this._writableState.objectMode = true;
+ this._readableState.objectMode = false;
+ }
+
+ _transform(bytesArr, encoding, cb) {
+ var buf = new Buffer(new Uint8Array(bytesArr));
+ this.push(buf);
+
+ cb();
+ }
+}
diff --git a/examples/pipetobrowser/browser/libs/utils/time.js b/examples/pipetobrowser/browser/libs/utils/time.js
new file mode 100644
index 0000000..be9b42d
--- /dev/null
+++ b/examples/pipetobrowser/browser/libs/utils/time.js
@@ -0,0 +1,25 @@
+/*
+ * Given a time duration in seconds, formats it as h' hours, m' minutes, s' seconds
+ * in EN-US.
+ * @param {integer} durationInSeconds Time period in seconds
+ * @return {string} EN-US formatted time period.
+ */
+export function formatDuration(durationInSeconds) {
+ var hours = Math.floor(durationInSeconds/3600);
+ var minutes = Math.floor((durationInSeconds - (hours*3600))/60);
+ var seconds = durationInSeconds - (hours*3600) - (minutes*60);
+
+ return _pluralize('hour', hours, true) +
+ _pluralize('minute', minutes, true) +
+ _pluralize('second', seconds, false);
+}
+
+function _pluralize(name, value, returnEmptyIfZero) {
+ if(value == 0 && returnEmptyIfZero) {
+ return '';
+ }
+ if(value != 1) {
+ name = name + 's';
+ }
+ return value + ' ' + name + ' ';
+}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/libs/vendor/nodejs/buffer.js b/examples/pipetobrowser/browser/libs/vendor/nodejs/buffer.js
new file mode 100644
index 0000000..5bbd6b3
--- /dev/null
+++ b/examples/pipetobrowser/browser/libs/vendor/nodejs/buffer.js
@@ -0,0 +1,1362 @@
+require=(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error("Cannot find module '"+o+"'")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({"buffer":[function(require,module,exports){
+module.exports=require('hpAyWD');
+},{}],"hpAyWD":[function(require,module,exports){
+/*!
+ * The buffer module from node.js, for the browser.
+ *
+ * @author Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
+ * @license MIT
+ */
+
+var base64 = require('base64-js')
+var ieee754 = require('ieee754')
+
+exports.Buffer = Buffer
+exports.SlowBuffer = Buffer
+exports.INSPECT_MAX_BYTES = 50
+Buffer.poolSize = 8192
+
+/**
+ * If `Buffer._useTypedArrays`:
+ * === true Use Uint8Array implementation (fastest)
+ * === false Use Object implementation (compatible down to IE6)
+ */
+Buffer._useTypedArrays = (function () {
+ // Detect if browser supports Typed Arrays. Supported browsers are IE 10+, Firefox 4+,
+ // Chrome 7+, Safari 5.1+, Opera 11.6+, iOS 4.2+. If the browser does not support adding
+ // properties to `Uint8Array` instances, then that's the same as no `Uint8Array` support
+ // because we need to be able to add all the node Buffer API methods. This is an issue
+ // in Firefox 4-29. Now fixed: https://bugzilla.mozilla.org/show_bug.cgi?id=695438
+ try {
+ var buf = new ArrayBuffer(0)
+ var arr = new Uint8Array(buf)
+ arr.foo = function () { return 42 }
+ return 42 === arr.foo() &&
+ typeof arr.subarray === 'function' // Chrome 9-10 lack `subarray`
+ } catch (e) {
+ return false
+ }
+})()
+
+/**
+ * Class: Buffer
+ * =============
+ *
+ * The Buffer constructor returns instances of `Uint8Array` that are augmented
+ * with function properties for all the node `Buffer` API functions. We use
+ * `Uint8Array` so that square bracket notation works as expected -- it returns
+ * a single octet.
+ *
+ * By augmenting the instances, we can avoid modifying the `Uint8Array`
+ * prototype.
+ */
+function Buffer (subject, encoding, noZero) {
+ if (!(this instanceof Buffer))
+ return new Buffer(subject, encoding, noZero)
+
+ var type = typeof subject
+
+ // Workaround: node's base64 implementation allows for non-padded strings
+ // while base64-js does not.
+ if (encoding === 'base64' && type === 'string') {
+ subject = stringtrim(subject)
+ while (subject.length % 4 !== 0) {
+ subject = subject + '='
+ }
+ }
+
+ // Find the length
+ var length
+ if (type === 'number')
+ length = coerce(subject)
+ else if (type === 'string')
+ length = Buffer.byteLength(subject, encoding)
+ else if (type === 'object')
+ length = coerce(subject.length) // assume that object is array-like
+ else
+ throw new Error('First argument needs to be a number, array or string.')
+
+ var buf
+ if (Buffer._useTypedArrays) {
+ // Preferred: Return an augmented `Uint8Array` instance for best performance
+ buf = Buffer._augment(new Uint8Array(length))
+ } else {
+ // Fallback: Return THIS instance of Buffer (created by `new`)
+ buf = this
+ buf.length = length
+ buf._isBuffer = true
+ }
+
+ var i
+ if (Buffer._useTypedArrays && typeof subject.byteLength === 'number') {
+ // Speed optimization -- use set if we're copying from a typed array
+ buf._set(subject)
+ } else if (isArrayish(subject)) {
+ // Treat array-ish objects as a byte array
+ if (Buffer.isBuffer(subject)) {
+ for (i = 0; i < length; i++)
+ buf[i] = subject.readUInt8(i)
+ } else {
+ for (i = 0; i < length; i++)
+ buf[i] = ((subject[i] % 256) + 256) % 256
+ }
+ } else if (type === 'string') {
+ buf.write(subject, 0, encoding)
+ } else if (type === 'number' && !Buffer._useTypedArrays && !noZero) {
+ for (i = 0; i < length; i++) {
+ buf[i] = 0
+ }
+ }
+
+ return buf
+}
+
+// STATIC METHODS
+// ==============
+
+Buffer.isEncoding = function (encoding) {
+ switch (String(encoding).toLowerCase()) {
+ case 'hex':
+ case 'utf8':
+ case 'utf-8':
+ case 'ascii':
+ case 'binary':
+ case 'base64':
+ case 'raw':
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return true
+ default:
+ return false
+ }
+}
+
+Buffer.isBuffer = function (b) {
+ return !!(b !== null && b !== undefined && b._isBuffer)
+}
+
+Buffer.byteLength = function (str, encoding) {
+ var ret
+ str = str.toString()
+ switch (encoding || 'utf8') {
+ case 'hex':
+ ret = str.length / 2
+ break
+ case 'utf8':
+ case 'utf-8':
+ ret = utf8ToBytes(str).length
+ break
+ case 'ascii':
+ case 'binary':
+ case 'raw':
+ ret = str.length
+ break
+ case 'base64':
+ ret = base64ToBytes(str).length
+ break
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ ret = str.length * 2
+ break
+ default:
+ throw new Error('Unknown encoding')
+ }
+ return ret
+}
+
+Buffer.concat = function (list, totalLength) {
+ assert(isArray(list), 'Usage: Buffer.concat(list[, length])')
+
+ if (list.length === 0) {
+ return new Buffer(0)
+ } else if (list.length === 1) {
+ return list[0]
+ }
+
+ var i
+ if (totalLength === undefined) {
+ totalLength = 0
+ for (i = 0; i < list.length; i++) {
+ totalLength += list[i].length
+ }
+ }
+
+ var buf = new Buffer(totalLength)
+ var pos = 0
+ for (i = 0; i < list.length; i++) {
+ var item = list[i]
+ item.copy(buf, pos)
+ pos += item.length
+ }
+ return buf
+}
+
+Buffer.compare = function (a, b) {
+ assert(Buffer.isBuffer(a) && Buffer.isBuffer(b), 'Arguments must be Buffers')
+ var x = a.length
+ var y = b.length
+ for (var i = 0, len = Math.min(x, y); i < len && a[i] === b[i]; i++) {}
+ if (i !== len) {
+ x = a[i]
+ y = b[i]
+ }
+ if (x < y) {
+ return -1
+ }
+ if (y < x) {
+ return 1
+ }
+ return 0
+}
+
+// BUFFER INSTANCE METHODS
+// =======================
+
+function hexWrite (buf, string, offset, length) {
+ offset = Number(offset) || 0
+ var remaining = buf.length - offset
+ if (!length) {
+ length = remaining
+ } else {
+ length = Number(length)
+ if (length > remaining) {
+ length = remaining
+ }
+ }
+
+ // must be an even number of digits
+ var strLen = string.length
+ assert(strLen % 2 === 0, 'Invalid hex string')
+
+ if (length > strLen / 2) {
+ length = strLen / 2
+ }
+ for (var i = 0; i < length; i++) {
+ var byte = parseInt(string.substr(i * 2, 2), 16)
+ assert(!isNaN(byte), 'Invalid hex string')
+ buf[offset + i] = byte
+ }
+ return i
+}
+
+function utf8Write (buf, string, offset, length) {
+ var charsWritten = blitBuffer(utf8ToBytes(string), buf, offset, length)
+ return charsWritten
+}
+
+function asciiWrite (buf, string, offset, length) {
+ var charsWritten = blitBuffer(asciiToBytes(string), buf, offset, length)
+ return charsWritten
+}
+
+function binaryWrite (buf, string, offset, length) {
+ return asciiWrite(buf, string, offset, length)
+}
+
+function base64Write (buf, string, offset, length) {
+ var charsWritten = blitBuffer(base64ToBytes(string), buf, offset, length)
+ return charsWritten
+}
+
+function utf16leWrite (buf, string, offset, length) {
+ var charsWritten = blitBuffer(utf16leToBytes(string), buf, offset, length)
+ return charsWritten
+}
+
+Buffer.prototype.write = function (string, offset, length, encoding) {
+ // Support both (string, offset, length, encoding)
+ // and the legacy (string, encoding, offset, length)
+ if (isFinite(offset)) {
+ if (!isFinite(length)) {
+ encoding = length
+ length = undefined
+ }
+ } else { // legacy
+ var swap = encoding
+ encoding = offset
+ offset = length
+ length = swap
+ }
+
+ offset = Number(offset) || 0
+ var remaining = this.length - offset
+ if (!length) {
+ length = remaining
+ } else {
+ length = Number(length)
+ if (length > remaining) {
+ length = remaining
+ }
+ }
+ encoding = String(encoding || 'utf8').toLowerCase()
+
+ var ret
+ switch (encoding) {
+ case 'hex':
+ ret = hexWrite(this, string, offset, length)
+ break
+ case 'utf8':
+ case 'utf-8':
+ ret = utf8Write(this, string, offset, length)
+ break
+ case 'ascii':
+ ret = asciiWrite(this, string, offset, length)
+ break
+ case 'binary':
+ ret = binaryWrite(this, string, offset, length)
+ break
+ case 'base64':
+ ret = base64Write(this, string, offset, length)
+ break
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ ret = utf16leWrite(this, string, offset, length)
+ break
+ default:
+ throw new Error('Unknown encoding')
+ }
+ return ret
+}
+
+Buffer.prototype.toString = function (encoding, start, end) {
+ var self = this
+
+ encoding = String(encoding || 'utf8').toLowerCase()
+ start = Number(start) || 0
+ end = (end === undefined) ? self.length : Number(end)
+
+ // Fastpath empty strings
+ if (end === start)
+ return ''
+
+ var ret
+ switch (encoding) {
+ case 'hex':
+ ret = hexSlice(self, start, end)
+ break
+ case 'utf8':
+ case 'utf-8':
+ ret = utf8Slice(self, start, end)
+ break
+ case 'ascii':
+ ret = asciiSlice(self, start, end)
+ break
+ case 'binary':
+ ret = binarySlice(self, start, end)
+ break
+ case 'base64':
+ ret = base64Slice(self, start, end)
+ break
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ ret = utf16leSlice(self, start, end)
+ break
+ default:
+ throw new Error('Unknown encoding')
+ }
+ return ret
+}
+
+Buffer.prototype.toJSON = function () {
+ return {
+ type: 'Buffer',
+ data: Array.prototype.slice.call(this._arr || this, 0)
+ }
+}
+
+Buffer.prototype.equals = function (b) {
+ assert(Buffer.isBuffer(b), 'Argument must be a Buffer')
+ return Buffer.compare(this, b) === 0
+}
+
+Buffer.prototype.compare = function (b) {
+ assert(Buffer.isBuffer(b), 'Argument must be a Buffer')
+ return Buffer.compare(this, b)
+}
+
+// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
+Buffer.prototype.copy = function (target, target_start, start, end) {
+ var source = this
+
+ if (!start) start = 0
+ if (!end && end !== 0) end = this.length
+ if (!target_start) target_start = 0
+
+ // Copy 0 bytes; we're done
+ if (end === start) return
+ if (target.length === 0 || source.length === 0) return
+
+ // Fatal error conditions
+ assert(end >= start, 'sourceEnd < sourceStart')
+ assert(target_start >= 0 && target_start < target.length,
+ 'targetStart out of bounds')
+ assert(start >= 0 && start < source.length, 'sourceStart out of bounds')
+ assert(end >= 0 && end <= source.length, 'sourceEnd out of bounds')
+
+ // Are we oob?
+ if (end > this.length)
+ end = this.length
+ if (target.length - target_start < end - start)
+ end = target.length - target_start + start
+
+ var len = end - start
+
+ if (len < 100 || !Buffer._useTypedArrays) {
+ for (var i = 0; i < len; i++) {
+ target[i + target_start] = this[i + start]
+ }
+ } else {
+ target._set(this.subarray(start, start + len), target_start)
+ }
+}
+
+function base64Slice (buf, start, end) {
+ if (start === 0 && end === buf.length) {
+ return base64.fromByteArray(buf)
+ } else {
+ return base64.fromByteArray(buf.slice(start, end))
+ }
+}
+
+function utf8Slice (buf, start, end) {
+ var res = ''
+ var tmp = ''
+ end = Math.min(buf.length, end)
+
+ for (var i = start; i < end; i++) {
+ if (buf[i] <= 0x7F) {
+ res += decodeUtf8Char(tmp) + String.fromCharCode(buf[i])
+ tmp = ''
+ } else {
+ tmp += '%' + buf[i].toString(16)
+ }
+ }
+
+ return res + decodeUtf8Char(tmp)
+}
+
+function asciiSlice (buf, start, end) {
+ var ret = ''
+ end = Math.min(buf.length, end)
+
+ for (var i = start; i < end; i++) {
+ ret += String.fromCharCode(buf[i])
+ }
+ return ret
+}
+
+function binarySlice (buf, start, end) {
+ return asciiSlice(buf, start, end)
+}
+
+function hexSlice (buf, start, end) {
+ var len = buf.length
+
+ if (!start || start < 0) start = 0
+ if (!end || end < 0 || end > len) end = len
+
+ var out = ''
+ for (var i = start; i < end; i++) {
+ out += toHex(buf[i])
+ }
+ return out
+}
+
+function utf16leSlice (buf, start, end) {
+ var bytes = buf.slice(start, end)
+ var res = ''
+ for (var i = 0; i < bytes.length; i += 2) {
+ res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256)
+ }
+ return res
+}
+
+Buffer.prototype.slice = function (start, end) {
+ var len = this.length
+ start = clamp(start, len, 0)
+ end = clamp(end, len, len)
+
+ if (Buffer._useTypedArrays) {
+ return Buffer._augment(this.subarray(start, end))
+ } else {
+ var sliceLen = end - start
+ var newBuf = new Buffer(sliceLen, undefined, true)
+ for (var i = 0; i < sliceLen; i++) {
+ newBuf[i] = this[i + start]
+ }
+ return newBuf
+ }
+}
+
+// `get` will be removed in Node 0.13+
+Buffer.prototype.get = function (offset) {
+ console.log('.get() is deprecated. Access using array indexes instead.')
+ return this.readUInt8(offset)
+}
+
+// `set` will be removed in Node 0.13+
+Buffer.prototype.set = function (v, offset) {
+ console.log('.set() is deprecated. Access using array indexes instead.')
+ return this.writeUInt8(v, offset)
+}
+
+Buffer.prototype.readUInt8 = function (offset, noAssert) {
+ if (!noAssert) {
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset < this.length, 'Trying to read beyond buffer length')
+ }
+
+ if (offset >= this.length)
+ return
+
+ return this[offset]
+}
+
+function readUInt16 (buf, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset + 1 < buf.length, 'Trying to read beyond buffer length')
+ }
+
+ var len = buf.length
+ if (offset >= len)
+ return
+
+ var val
+ if (littleEndian) {
+ val = buf[offset]
+ if (offset + 1 < len)
+ val |= buf[offset + 1] << 8
+ } else {
+ val = buf[offset] << 8
+ if (offset + 1 < len)
+ val |= buf[offset + 1]
+ }
+ return val
+}
+
+Buffer.prototype.readUInt16LE = function (offset, noAssert) {
+ return readUInt16(this, offset, true, noAssert)
+}
+
+Buffer.prototype.readUInt16BE = function (offset, noAssert) {
+ return readUInt16(this, offset, false, noAssert)
+}
+
+function readUInt32 (buf, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset + 3 < buf.length, 'Trying to read beyond buffer length')
+ }
+
+ var len = buf.length
+ if (offset >= len)
+ return
+
+ var val
+ if (littleEndian) {
+ if (offset + 2 < len)
+ val = buf[offset + 2] << 16
+ if (offset + 1 < len)
+ val |= buf[offset + 1] << 8
+ val |= buf[offset]
+ if (offset + 3 < len)
+ val = val + (buf[offset + 3] << 24 >>> 0)
+ } else {
+ if (offset + 1 < len)
+ val = buf[offset + 1] << 16
+ if (offset + 2 < len)
+ val |= buf[offset + 2] << 8
+ if (offset + 3 < len)
+ val |= buf[offset + 3]
+ val = val + (buf[offset] << 24 >>> 0)
+ }
+ return val
+}
+
+Buffer.prototype.readUInt32LE = function (offset, noAssert) {
+ return readUInt32(this, offset, true, noAssert)
+}
+
+Buffer.prototype.readUInt32BE = function (offset, noAssert) {
+ return readUInt32(this, offset, false, noAssert)
+}
+
+Buffer.prototype.readInt8 = function (offset, noAssert) {
+ if (!noAssert) {
+ assert(offset !== undefined && offset !== null,
+ 'missing offset')
+ assert(offset < this.length, 'Trying to read beyond buffer length')
+ }
+
+ if (offset >= this.length)
+ return
+
+ var neg = this[offset] & 0x80
+ if (neg)
+ return (0xff - this[offset] + 1) * -1
+ else
+ return this[offset]
+}
+
+function readInt16 (buf, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset + 1 < buf.length, 'Trying to read beyond buffer length')
+ }
+
+ var len = buf.length
+ if (offset >= len)
+ return
+
+ var val = readUInt16(buf, offset, littleEndian, true)
+ var neg = val & 0x8000
+ if (neg)
+ return (0xffff - val + 1) * -1
+ else
+ return val
+}
+
+Buffer.prototype.readInt16LE = function (offset, noAssert) {
+ return readInt16(this, offset, true, noAssert)
+}
+
+Buffer.prototype.readInt16BE = function (offset, noAssert) {
+ return readInt16(this, offset, false, noAssert)
+}
+
+function readInt32 (buf, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset + 3 < buf.length, 'Trying to read beyond buffer length')
+ }
+
+ var len = buf.length
+ if (offset >= len)
+ return
+
+ var val = readUInt32(buf, offset, littleEndian, true)
+ var neg = val & 0x80000000
+ if (neg)
+ return (0xffffffff - val + 1) * -1
+ else
+ return val
+}
+
+Buffer.prototype.readInt32LE = function (offset, noAssert) {
+ return readInt32(this, offset, true, noAssert)
+}
+
+Buffer.prototype.readInt32BE = function (offset, noAssert) {
+ return readInt32(this, offset, false, noAssert)
+}
+
+function readFloat (buf, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset + 3 < buf.length, 'Trying to read beyond buffer length')
+ }
+
+ return ieee754.read(buf, offset, littleEndian, 23, 4)
+}
+
+Buffer.prototype.readFloatLE = function (offset, noAssert) {
+ return readFloat(this, offset, true, noAssert)
+}
+
+Buffer.prototype.readFloatBE = function (offset, noAssert) {
+ return readFloat(this, offset, false, noAssert)
+}
+
+function readDouble (buf, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset + 7 < buf.length, 'Trying to read beyond buffer length')
+ }
+
+ return ieee754.read(buf, offset, littleEndian, 52, 8)
+}
+
+Buffer.prototype.readDoubleLE = function (offset, noAssert) {
+ return readDouble(this, offset, true, noAssert)
+}
+
+Buffer.prototype.readDoubleBE = function (offset, noAssert) {
+ return readDouble(this, offset, false, noAssert)
+}
+
+Buffer.prototype.writeUInt8 = function (value, offset, noAssert) {
+ if (!noAssert) {
+ assert(value !== undefined && value !== null, 'missing value')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset < this.length, 'trying to write beyond buffer length')
+ verifuint(value, 0xff)
+ }
+
+ if (offset >= this.length) return
+
+ this[offset] = value
+ return offset + 1
+}
+
+function writeUInt16 (buf, value, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(value !== undefined && value !== null, 'missing value')
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset + 1 < buf.length, 'trying to write beyond buffer length')
+ verifuint(value, 0xffff)
+ }
+
+ var len = buf.length
+ if (offset >= len)
+ return
+
+ for (var i = 0, j = Math.min(len - offset, 2); i < j; i++) {
+ buf[offset + i] =
+ (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>
+ (littleEndian ? i : 1 - i) * 8
+ }
+ return offset + 2
+}
+
+Buffer.prototype.writeUInt16LE = function (value, offset, noAssert) {
+ return writeUInt16(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeUInt16BE = function (value, offset, noAssert) {
+ return writeUInt16(this, value, offset, false, noAssert)
+}
+
+function writeUInt32 (buf, value, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(value !== undefined && value !== null, 'missing value')
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset + 3 < buf.length, 'trying to write beyond buffer length')
+ verifuint(value, 0xffffffff)
+ }
+
+ var len = buf.length
+ if (offset >= len)
+ return
+
+ for (var i = 0, j = Math.min(len - offset, 4); i < j; i++) {
+ buf[offset + i] =
+ (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff
+ }
+ return offset + 4
+}
+
+Buffer.prototype.writeUInt32LE = function (value, offset, noAssert) {
+ return writeUInt32(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeUInt32BE = function (value, offset, noAssert) {
+ return writeUInt32(this, value, offset, false, noAssert)
+}
+
+Buffer.prototype.writeInt8 = function (value, offset, noAssert) {
+ if (!noAssert) {
+ assert(value !== undefined && value !== null, 'missing value')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset < this.length, 'Trying to write beyond buffer length')
+ verifsint(value, 0x7f, -0x80)
+ }
+
+ if (offset >= this.length)
+ return
+
+ if (value >= 0)
+ this.writeUInt8(value, offset, noAssert)
+ else
+ this.writeUInt8(0xff + value + 1, offset, noAssert)
+ return offset + 1
+}
+
+function writeInt16 (buf, value, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(value !== undefined && value !== null, 'missing value')
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset + 1 < buf.length, 'Trying to write beyond buffer length')
+ verifsint(value, 0x7fff, -0x8000)
+ }
+
+ var len = buf.length
+ if (offset >= len)
+ return
+
+ if (value >= 0)
+ writeUInt16(buf, value, offset, littleEndian, noAssert)
+ else
+ writeUInt16(buf, 0xffff + value + 1, offset, littleEndian, noAssert)
+ return offset + 2
+}
+
+Buffer.prototype.writeInt16LE = function (value, offset, noAssert) {
+ return writeInt16(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeInt16BE = function (value, offset, noAssert) {
+ return writeInt16(this, value, offset, false, noAssert)
+}
+
+function writeInt32 (buf, value, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(value !== undefined && value !== null, 'missing value')
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset + 3 < buf.length, 'Trying to write beyond buffer length')
+ verifsint(value, 0x7fffffff, -0x80000000)
+ }
+
+ var len = buf.length
+ if (offset >= len)
+ return
+
+ if (value >= 0)
+ writeUInt32(buf, value, offset, littleEndian, noAssert)
+ else
+ writeUInt32(buf, 0xffffffff + value + 1, offset, littleEndian, noAssert)
+ return offset + 4
+}
+
+Buffer.prototype.writeInt32LE = function (value, offset, noAssert) {
+ return writeInt32(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeInt32BE = function (value, offset, noAssert) {
+ return writeInt32(this, value, offset, false, noAssert)
+}
+
+function writeFloat (buf, value, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(value !== undefined && value !== null, 'missing value')
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset + 3 < buf.length, 'Trying to write beyond buffer length')
+ verifIEEE754(value, 3.4028234663852886e+38, -3.4028234663852886e+38)
+ }
+
+ var len = buf.length
+ if (offset >= len)
+ return
+
+ ieee754.write(buf, value, offset, littleEndian, 23, 4)
+ return offset + 4
+}
+
+Buffer.prototype.writeFloatLE = function (value, offset, noAssert) {
+ return writeFloat(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeFloatBE = function (value, offset, noAssert) {
+ return writeFloat(this, value, offset, false, noAssert)
+}
+
+function writeDouble (buf, value, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(value !== undefined && value !== null, 'missing value')
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset + 7 < buf.length,
+ 'Trying to write beyond buffer length')
+ verifIEEE754(value, 1.7976931348623157E+308, -1.7976931348623157E+308)
+ }
+
+ var len = buf.length
+ if (offset >= len)
+ return
+
+ ieee754.write(buf, value, offset, littleEndian, 52, 8)
+ return offset + 8
+}
+
+Buffer.prototype.writeDoubleLE = function (value, offset, noAssert) {
+ return writeDouble(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeDoubleBE = function (value, offset, noAssert) {
+ return writeDouble(this, value, offset, false, noAssert)
+}
+
+// fill(value, start=0, end=buffer.length)
+Buffer.prototype.fill = function (value, start, end) {
+ if (!value) value = 0
+ if (!start) start = 0
+ if (!end) end = this.length
+
+ assert(end >= start, 'end < start')
+
+ // Fill 0 bytes; we're done
+ if (end === start) return
+ if (this.length === 0) return
+
+ assert(start >= 0 && start < this.length, 'start out of bounds')
+ assert(end >= 0 && end <= this.length, 'end out of bounds')
+
+ var i
+ if (typeof value === 'number') {
+ for (i = start; i < end; i++) {
+ this[i] = value
+ }
+ } else {
+ var bytes = utf8ToBytes(value.toString())
+ var len = bytes.length
+ for (i = start; i < end; i++) {
+ this[i] = bytes[i % len]
+ }
+ }
+
+ return this
+}
+
+Buffer.prototype.inspect = function () {
+ var out = []
+ var len = this.length
+ for (var i = 0; i < len; i++) {
+ out[i] = toHex(this[i])
+ if (i === exports.INSPECT_MAX_BYTES) {
+ out[i + 1] = '...'
+ break
+ }
+ }
+ return '<Buffer ' + out.join(' ') + '>'
+}
+
+/**
+ * Creates a new `ArrayBuffer` with the *copied* memory of the buffer instance.
+ * Added in Node 0.12. Only available in browsers that support ArrayBuffer.
+ */
+Buffer.prototype.toArrayBuffer = function () {
+ if (typeof Uint8Array !== 'undefined') {
+ if (Buffer._useTypedArrays) {
+ return (new Buffer(this)).buffer
+ } else {
+ var buf = new Uint8Array(this.length)
+ for (var i = 0, len = buf.length; i < len; i += 1) {
+ buf[i] = this[i]
+ }
+ return buf.buffer
+ }
+ } else {
+ throw new Error('Buffer.toArrayBuffer not supported in this browser')
+ }
+}
+
+// HELPER FUNCTIONS
+// ================
+
+var BP = Buffer.prototype
+
+/**
+ * Augment a Uint8Array *instance* (not the Uint8Array class!) with Buffer methods
+ */
+Buffer._augment = function (arr) {
+ arr._isBuffer = true
+
+ // save reference to original Uint8Array get/set methods before overwriting
+ arr._get = arr.get
+ arr._set = arr.set
+
+ // deprecated, will be removed in node 0.13+
+ arr.get = BP.get
+ arr.set = BP.set
+
+ arr.write = BP.write
+ arr.toString = BP.toString
+ arr.toLocaleString = BP.toString
+ arr.toJSON = BP.toJSON
+ arr.equals = BP.equals
+ arr.compare = BP.compare
+ arr.copy = BP.copy
+ arr.slice = BP.slice
+ arr.readUInt8 = BP.readUInt8
+ arr.readUInt16LE = BP.readUInt16LE
+ arr.readUInt16BE = BP.readUInt16BE
+ arr.readUInt32LE = BP.readUInt32LE
+ arr.readUInt32BE = BP.readUInt32BE
+ arr.readInt8 = BP.readInt8
+ arr.readInt16LE = BP.readInt16LE
+ arr.readInt16BE = BP.readInt16BE
+ arr.readInt32LE = BP.readInt32LE
+ arr.readInt32BE = BP.readInt32BE
+ arr.readFloatLE = BP.readFloatLE
+ arr.readFloatBE = BP.readFloatBE
+ arr.readDoubleLE = BP.readDoubleLE
+ arr.readDoubleBE = BP.readDoubleBE
+ arr.writeUInt8 = BP.writeUInt8
+ arr.writeUInt16LE = BP.writeUInt16LE
+ arr.writeUInt16BE = BP.writeUInt16BE
+ arr.writeUInt32LE = BP.writeUInt32LE
+ arr.writeUInt32BE = BP.writeUInt32BE
+ arr.writeInt8 = BP.writeInt8
+ arr.writeInt16LE = BP.writeInt16LE
+ arr.writeInt16BE = BP.writeInt16BE
+ arr.writeInt32LE = BP.writeInt32LE
+ arr.writeInt32BE = BP.writeInt32BE
+ arr.writeFloatLE = BP.writeFloatLE
+ arr.writeFloatBE = BP.writeFloatBE
+ arr.writeDoubleLE = BP.writeDoubleLE
+ arr.writeDoubleBE = BP.writeDoubleBE
+ arr.fill = BP.fill
+ arr.inspect = BP.inspect
+ arr.toArrayBuffer = BP.toArrayBuffer
+
+ return arr
+}
+
+function stringtrim (str) {
+ if (str.trim) return str.trim()
+ return str.replace(/^\s+|\s+$/g, '')
+}
+
+// slice(start, end)
+function clamp (index, len, defaultValue) {
+ if (typeof index !== 'number') return defaultValue
+ index = ~~index; // Coerce to integer.
+ if (index >= len) return len
+ if (index >= 0) return index
+ index += len
+ if (index >= 0) return index
+ return 0
+}
+
+function coerce (length) {
+ // Coerce length to a number (possibly NaN), round up
+ // in case it's fractional (e.g. 123.456) then do a
+ // double negate to coerce a NaN to 0. Easy, right?
+ length = ~~Math.ceil(+length)
+ return length < 0 ? 0 : length
+}
+
+function isArray (subject) {
+ return (Array.isArray || function (subject) {
+ return Object.prototype.toString.call(subject) === '[object Array]'
+ })(subject)
+}
+
+function isArrayish (subject) {
+ return isArray(subject) || Buffer.isBuffer(subject) ||
+ subject && typeof subject === 'object' &&
+ typeof subject.length === 'number'
+}
+
+function toHex (n) {
+ if (n < 16) return '0' + n.toString(16)
+ return n.toString(16)
+}
+
+function utf8ToBytes (str) {
+ var byteArray = []
+ for (var i = 0; i < str.length; i++) {
+ var b = str.charCodeAt(i)
+ if (b <= 0x7F) {
+ byteArray.push(b)
+ } else {
+ var start = i
+ if (b >= 0xD800 && b <= 0xDFFF) i++
+ var h = encodeURIComponent(str.slice(start, i+1)).substr(1).split('%')
+ for (var j = 0; j < h.length; j++) {
+ byteArray.push(parseInt(h[j], 16))
+ }
+ }
+ }
+ return byteArray
+}
+
+function asciiToBytes (str) {
+ var byteArray = []
+ for (var i = 0; i < str.length; i++) {
+ // Node's code seems to be doing this and not & 0x7F..
+ byteArray.push(str.charCodeAt(i) & 0xFF)
+ }
+ return byteArray
+}
+
+function utf16leToBytes (str) {
+ var c, hi, lo
+ var byteArray = []
+ for (var i = 0; i < str.length; i++) {
+ c = str.charCodeAt(i)
+ hi = c >> 8
+ lo = c % 256
+ byteArray.push(lo)
+ byteArray.push(hi)
+ }
+
+ return byteArray
+}
+
+function base64ToBytes (str) {
+ return base64.toByteArray(str)
+}
+
+function blitBuffer (src, dst, offset, length) {
+ for (var i = 0; i < length; i++) {
+ if ((i + offset >= dst.length) || (i >= src.length))
+ break
+ dst[i + offset] = src[i]
+ }
+ return i
+}
+
+function decodeUtf8Char (str) {
+ try {
+ return decodeURIComponent(str)
+ } catch (err) {
+ return String.fromCharCode(0xFFFD) // UTF 8 invalid char
+ }
+}
+
+/*
+ * We have to make sure that the value is a valid integer. This means that it
+ * is non-negative. It has no fractional component and that it does not
+ * exceed the maximum allowed value.
+ */
+function verifuint (value, max) {
+ assert(typeof value === 'number', 'cannot write a non-number as a number')
+ assert(value >= 0, 'specified a negative value for writing an unsigned value')
+ assert(value <= max, 'value is larger than maximum value for type')
+ assert(Math.floor(value) === value, 'value has a fractional component')
+}
+
+function verifsint (value, max, min) {
+ assert(typeof value === 'number', 'cannot write a non-number as a number')
+ assert(value <= max, 'value larger than maximum allowed value')
+ assert(value >= min, 'value smaller than minimum allowed value')
+ assert(Math.floor(value) === value, 'value has a fractional component')
+}
+
+function verifIEEE754 (value, max, min) {
+ assert(typeof value === 'number', 'cannot write a non-number as a number')
+ assert(value <= max, 'value larger than maximum allowed value')
+ assert(value >= min, 'value smaller than minimum allowed value')
+}
+
+function assert (test, message) {
+ if (!test) throw new Error(message || 'Failed assertion')
+}
+
+},{"base64-js":3,"ieee754":4}],3:[function(require,module,exports){
+var lookup = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
+
+;(function (exports) {
+ 'use strict';
+
+ var Arr = (typeof Uint8Array !== 'undefined')
+ ? Uint8Array
+ : Array
+
+ var PLUS = '+'.charCodeAt(0)
+ var SLASH = '/'.charCodeAt(0)
+ var NUMBER = '0'.charCodeAt(0)
+ var LOWER = 'a'.charCodeAt(0)
+ var UPPER = 'A'.charCodeAt(0)
+
+ function decode (elt) {
+ var code = elt.charCodeAt(0)
+ if (code === PLUS)
+ return 62 // '+'
+ if (code === SLASH)
+ return 63 // '/'
+ if (code < NUMBER)
+ return -1 //no match
+ if (code < NUMBER + 10)
+ return code - NUMBER + 26 + 26
+ if (code < UPPER + 26)
+ return code - UPPER
+ if (code < LOWER + 26)
+ return code - LOWER + 26
+ }
+
+ function b64ToByteArray (b64) {
+ var i, j, l, tmp, placeHolders, arr
+
+ if (b64.length % 4 > 0) {
+ throw new Error('Invalid string. Length must be a multiple of 4')
+ }
+
+ // the number of equal signs (place holders)
+ // if there are two placeholders, than the two characters before it
+ // represent one byte
+ // if there is only one, then the three characters before it represent 2 bytes
+ // this is just a cheap hack to not do indexOf twice
+ var len = b64.length
+ placeHolders = '=' === b64.charAt(len - 2) ? 2 : '=' === b64.charAt(len - 1) ? 1 : 0
+
+ // base64 is 4/3 + up to two characters of the original data
+ arr = new Arr(b64.length * 3 / 4 - placeHolders)
+
+ // if there are placeholders, only get up to the last complete 4 chars
+ l = placeHolders > 0 ? b64.length - 4 : b64.length
+
+ var L = 0
+
+ function push (v) {
+ arr[L++] = v
+ }
+
+ for (i = 0, j = 0; i < l; i += 4, j += 3) {
+ tmp = (decode(b64.charAt(i)) << 18) | (decode(b64.charAt(i + 1)) << 12) | (decode(b64.charAt(i + 2)) << 6) | decode(b64.charAt(i + 3))
+ push((tmp & 0xFF0000) >> 16)
+ push((tmp & 0xFF00) >> 8)
+ push(tmp & 0xFF)
+ }
+
+ if (placeHolders === 2) {
+ tmp = (decode(b64.charAt(i)) << 2) | (decode(b64.charAt(i + 1)) >> 4)
+ push(tmp & 0xFF)
+ } else if (placeHolders === 1) {
+ tmp = (decode(b64.charAt(i)) << 10) | (decode(b64.charAt(i + 1)) << 4) | (decode(b64.charAt(i + 2)) >> 2)
+ push((tmp >> 8) & 0xFF)
+ push(tmp & 0xFF)
+ }
+
+ return arr
+ }
+
+ function uint8ToBase64 (uint8) {
+ var i,
+ extraBytes = uint8.length % 3, // if we have 1 byte left, pad 2 bytes
+ output = "",
+ temp, length
+
+ function encode (num) {
+ return lookup.charAt(num)
+ }
+
+ function tripletToBase64 (num) {
+ return encode(num >> 18 & 0x3F) + encode(num >> 12 & 0x3F) + encode(num >> 6 & 0x3F) + encode(num & 0x3F)
+ }
+
+ // go through the array every three bytes, we'll deal with trailing stuff later
+ for (i = 0, length = uint8.length - extraBytes; i < length; i += 3) {
+ temp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
+ output += tripletToBase64(temp)
+ }
+
+ // pad the end with zeros, but make sure to not forget the extra bytes
+ switch (extraBytes) {
+ case 1:
+ temp = uint8[uint8.length - 1]
+ output += encode(temp >> 2)
+ output += encode((temp << 4) & 0x3F)
+ output += '=='
+ break
+ case 2:
+ temp = (uint8[uint8.length - 2] << 8) + (uint8[uint8.length - 1])
+ output += encode(temp >> 10)
+ output += encode((temp >> 4) & 0x3F)
+ output += encode((temp << 2) & 0x3F)
+ output += '='
+ break
+ }
+
+ return output
+ }
+
+ exports.toByteArray = b64ToByteArray
+ exports.fromByteArray = uint8ToBase64
+}(typeof exports === 'undefined' ? (this.base64js = {}) : exports))
+
+},{}],4:[function(require,module,exports){
+exports.read = function(buffer, offset, isLE, mLen, nBytes) {
+ var e, m,
+ eLen = nBytes * 8 - mLen - 1,
+ eMax = (1 << eLen) - 1,
+ eBias = eMax >> 1,
+ nBits = -7,
+ i = isLE ? (nBytes - 1) : 0,
+ d = isLE ? -1 : 1,
+ s = buffer[offset + i];
+
+ i += d;
+
+ e = s & ((1 << (-nBits)) - 1);
+ s >>= (-nBits);
+ nBits += eLen;
+ for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8);
+
+ m = e & ((1 << (-nBits)) - 1);
+ e >>= (-nBits);
+ nBits += mLen;
+ for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8);
+
+ if (e === 0) {
+ e = 1 - eBias;
+ } else if (e === eMax) {
+ return m ? NaN : ((s ? -1 : 1) * Infinity);
+ } else {
+ m = m + Math.pow(2, mLen);
+ e = e - eBias;
+ }
+ return (s ? -1 : 1) * m * Math.pow(2, e - mLen);
+};
+
+exports.write = function(buffer, value, offset, isLE, mLen, nBytes) {
+ var e, m, c,
+ eLen = nBytes * 8 - mLen - 1,
+ eMax = (1 << eLen) - 1,
+ eBias = eMax >> 1,
+ rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0),
+ i = isLE ? 0 : (nBytes - 1),
+ d = isLE ? 1 : -1,
+ s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0;
+
+ value = Math.abs(value);
+
+ if (isNaN(value) || value === Infinity) {
+ m = isNaN(value) ? 1 : 0;
+ e = eMax;
+ } else {
+ e = Math.floor(Math.log(value) / Math.LN2);
+ if (value * (c = Math.pow(2, -e)) < 1) {
+ e--;
+ c *= 2;
+ }
+ if (e + eBias >= 1) {
+ value += rt / c;
+ } else {
+ value += rt * Math.pow(2, 1 - eBias);
+ }
+ if (value * c >= 2) {
+ e++;
+ c /= 2;
+ }
+
+ if (e + eBias >= eMax) {
+ m = 0;
+ e = eMax;
+ } else if (e + eBias >= 1) {
+ m = (value * c - 1) * Math.pow(2, mLen);
+ e = e + eBias;
+ } else {
+ m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen);
+ e = 0;
+ }
+ }
+
+ for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8);
+
+ e = (e << mLen) | m;
+ eLen += mLen;
+ for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8);
+
+ buffer[offset + i - d] |= s * 128;
+};
+
+},{}]},{},[])
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/libs/vendor/nodejs/stream.js b/examples/pipetobrowser/browser/libs/vendor/nodejs/stream.js
new file mode 100644
index 0000000..890bedb
--- /dev/null
+++ b/examples/pipetobrowser/browser/libs/vendor/nodejs/stream.js
@@ -0,0 +1,3930 @@
+require=(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error("Cannot find module '"+o+"'")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+/*!
+ * The buffer module from node.js, for the browser.
+ *
+ * @author Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
+ * @license MIT
+ */
+
+var base64 = require('base64-js')
+var ieee754 = require('ieee754')
+
+exports.Buffer = Buffer
+exports.SlowBuffer = Buffer
+exports.INSPECT_MAX_BYTES = 50
+Buffer.poolSize = 8192
+
+/**
+ * If `Buffer._useTypedArrays`:
+ * === true Use Uint8Array implementation (fastest)
+ * === false Use Object implementation (compatible down to IE6)
+ */
+Buffer._useTypedArrays = (function () {
+ // Detect if browser supports Typed Arrays. Supported browsers are IE 10+, Firefox 4+,
+ // Chrome 7+, Safari 5.1+, Opera 11.6+, iOS 4.2+. If the browser does not support adding
+ // properties to `Uint8Array` instances, then that's the same as no `Uint8Array` support
+ // because we need to be able to add all the node Buffer API methods. This is an issue
+ // in Firefox 4-29. Now fixed: https://bugzilla.mozilla.org/show_bug.cgi?id=695438
+ try {
+ var buf = new ArrayBuffer(0)
+ var arr = new Uint8Array(buf)
+ arr.foo = function () { return 42 }
+ return 42 === arr.foo() &&
+ typeof arr.subarray === 'function' // Chrome 9-10 lack `subarray`
+ } catch (e) {
+ return false
+ }
+})()
+
+/**
+ * Class: Buffer
+ * =============
+ *
+ * The Buffer constructor returns instances of `Uint8Array` that are augmented
+ * with function properties for all the node `Buffer` API functions. We use
+ * `Uint8Array` so that square bracket notation works as expected -- it returns
+ * a single octet.
+ *
+ * By augmenting the instances, we can avoid modifying the `Uint8Array`
+ * prototype.
+ */
+function Buffer (subject, encoding, noZero) {
+ if (!(this instanceof Buffer))
+ return new Buffer(subject, encoding, noZero)
+
+ var type = typeof subject
+
+ // Workaround: node's base64 implementation allows for non-padded strings
+ // while base64-js does not.
+ if (encoding === 'base64' && type === 'string') {
+ subject = stringtrim(subject)
+ while (subject.length % 4 !== 0) {
+ subject = subject + '='
+ }
+ }
+
+ // Find the length
+ var length
+ if (type === 'number')
+ length = coerce(subject)
+ else if (type === 'string')
+ length = Buffer.byteLength(subject, encoding)
+ else if (type === 'object')
+ length = coerce(subject.length) // assume that object is array-like
+ else
+ throw new Error('First argument needs to be a number, array or string.')
+
+ var buf
+ if (Buffer._useTypedArrays) {
+ // Preferred: Return an augmented `Uint8Array` instance for best performance
+ buf = Buffer._augment(new Uint8Array(length))
+ } else {
+ // Fallback: Return THIS instance of Buffer (created by `new`)
+ buf = this
+ buf.length = length
+ buf._isBuffer = true
+ }
+
+ var i
+ if (Buffer._useTypedArrays && typeof subject.byteLength === 'number') {
+ // Speed optimization -- use set if we're copying from a typed array
+ buf._set(subject)
+ } else if (isArrayish(subject)) {
+ // Treat array-ish objects as a byte array
+ if (Buffer.isBuffer(subject)) {
+ for (i = 0; i < length; i++)
+ buf[i] = subject.readUInt8(i)
+ } else {
+ for (i = 0; i < length; i++)
+ buf[i] = ((subject[i] % 256) + 256) % 256
+ }
+ } else if (type === 'string') {
+ buf.write(subject, 0, encoding)
+ } else if (type === 'number' && !Buffer._useTypedArrays && !noZero) {
+ for (i = 0; i < length; i++) {
+ buf[i] = 0
+ }
+ }
+
+ return buf
+}
+
+// STATIC METHODS
+// ==============
+
+Buffer.isEncoding = function (encoding) {
+ switch (String(encoding).toLowerCase()) {
+ case 'hex':
+ case 'utf8':
+ case 'utf-8':
+ case 'ascii':
+ case 'binary':
+ case 'base64':
+ case 'raw':
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return true
+ default:
+ return false
+ }
+}
+
+Buffer.isBuffer = function (b) {
+ return !!(b !== null && b !== undefined && b._isBuffer)
+}
+
+Buffer.byteLength = function (str, encoding) {
+ var ret
+ str = str.toString()
+ switch (encoding || 'utf8') {
+ case 'hex':
+ ret = str.length / 2
+ break
+ case 'utf8':
+ case 'utf-8':
+ ret = utf8ToBytes(str).length
+ break
+ case 'ascii':
+ case 'binary':
+ case 'raw':
+ ret = str.length
+ break
+ case 'base64':
+ ret = base64ToBytes(str).length
+ break
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ ret = str.length * 2
+ break
+ default:
+ throw new Error('Unknown encoding')
+ }
+ return ret
+}
+
+Buffer.concat = function (list, totalLength) {
+ assert(isArray(list), 'Usage: Buffer.concat(list[, length])')
+
+ if (list.length === 0) {
+ return new Buffer(0)
+ } else if (list.length === 1) {
+ return list[0]
+ }
+
+ var i
+ if (totalLength === undefined) {
+ totalLength = 0
+ for (i = 0; i < list.length; i++) {
+ totalLength += list[i].length
+ }
+ }
+
+ var buf = new Buffer(totalLength)
+ var pos = 0
+ for (i = 0; i < list.length; i++) {
+ var item = list[i]
+ item.copy(buf, pos)
+ pos += item.length
+ }
+ return buf
+}
+
+Buffer.compare = function (a, b) {
+ assert(Buffer.isBuffer(a) && Buffer.isBuffer(b), 'Arguments must be Buffers')
+ var x = a.length
+ var y = b.length
+ for (var i = 0, len = Math.min(x, y); i < len && a[i] === b[i]; i++) {}
+ if (i !== len) {
+ x = a[i]
+ y = b[i]
+ }
+ if (x < y) {
+ return -1
+ }
+ if (y < x) {
+ return 1
+ }
+ return 0
+}
+
+// BUFFER INSTANCE METHODS
+// =======================
+
+function hexWrite (buf, string, offset, length) {
+ offset = Number(offset) || 0
+ var remaining = buf.length - offset
+ if (!length) {
+ length = remaining
+ } else {
+ length = Number(length)
+ if (length > remaining) {
+ length = remaining
+ }
+ }
+
+ // must be an even number of digits
+ var strLen = string.length
+ assert(strLen % 2 === 0, 'Invalid hex string')
+
+ if (length > strLen / 2) {
+ length = strLen / 2
+ }
+ for (var i = 0; i < length; i++) {
+ var byte = parseInt(string.substr(i * 2, 2), 16)
+ assert(!isNaN(byte), 'Invalid hex string')
+ buf[offset + i] = byte
+ }
+ return i
+}
+
+function utf8Write (buf, string, offset, length) {
+ var charsWritten = blitBuffer(utf8ToBytes(string), buf, offset, length)
+ return charsWritten
+}
+
+function asciiWrite (buf, string, offset, length) {
+ var charsWritten = blitBuffer(asciiToBytes(string), buf, offset, length)
+ return charsWritten
+}
+
+function binaryWrite (buf, string, offset, length) {
+ return asciiWrite(buf, string, offset, length)
+}
+
+function base64Write (buf, string, offset, length) {
+ var charsWritten = blitBuffer(base64ToBytes(string), buf, offset, length)
+ return charsWritten
+}
+
+function utf16leWrite (buf, string, offset, length) {
+ var charsWritten = blitBuffer(utf16leToBytes(string), buf, offset, length)
+ return charsWritten
+}
+
+Buffer.prototype.write = function (string, offset, length, encoding) {
+ // Support both (string, offset, length, encoding)
+ // and the legacy (string, encoding, offset, length)
+ if (isFinite(offset)) {
+ if (!isFinite(length)) {
+ encoding = length
+ length = undefined
+ }
+ } else { // legacy
+ var swap = encoding
+ encoding = offset
+ offset = length
+ length = swap
+ }
+
+ offset = Number(offset) || 0
+ var remaining = this.length - offset
+ if (!length) {
+ length = remaining
+ } else {
+ length = Number(length)
+ if (length > remaining) {
+ length = remaining
+ }
+ }
+ encoding = String(encoding || 'utf8').toLowerCase()
+
+ var ret
+ switch (encoding) {
+ case 'hex':
+ ret = hexWrite(this, string, offset, length)
+ break
+ case 'utf8':
+ case 'utf-8':
+ ret = utf8Write(this, string, offset, length)
+ break
+ case 'ascii':
+ ret = asciiWrite(this, string, offset, length)
+ break
+ case 'binary':
+ ret = binaryWrite(this, string, offset, length)
+ break
+ case 'base64':
+ ret = base64Write(this, string, offset, length)
+ break
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ ret = utf16leWrite(this, string, offset, length)
+ break
+ default:
+ throw new Error('Unknown encoding')
+ }
+ return ret
+}
+
+Buffer.prototype.toString = function (encoding, start, end) {
+ var self = this
+
+ encoding = String(encoding || 'utf8').toLowerCase()
+ start = Number(start) || 0
+ end = (end === undefined) ? self.length : Number(end)
+
+ // Fastpath empty strings
+ if (end === start)
+ return ''
+
+ var ret
+ switch (encoding) {
+ case 'hex':
+ ret = hexSlice(self, start, end)
+ break
+ case 'utf8':
+ case 'utf-8':
+ ret = utf8Slice(self, start, end)
+ break
+ case 'ascii':
+ ret = asciiSlice(self, start, end)
+ break
+ case 'binary':
+ ret = binarySlice(self, start, end)
+ break
+ case 'base64':
+ ret = base64Slice(self, start, end)
+ break
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ ret = utf16leSlice(self, start, end)
+ break
+ default:
+ throw new Error('Unknown encoding')
+ }
+ return ret
+}
+
+Buffer.prototype.toJSON = function () {
+ return {
+ type: 'Buffer',
+ data: Array.prototype.slice.call(this._arr || this, 0)
+ }
+}
+
+Buffer.prototype.equals = function (b) {
+ assert(Buffer.isBuffer(b), 'Argument must be a Buffer')
+ return Buffer.compare(this, b) === 0
+}
+
+Buffer.prototype.compare = function (b) {
+ assert(Buffer.isBuffer(b), 'Argument must be a Buffer')
+ return Buffer.compare(this, b)
+}
+
+// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
+Buffer.prototype.copy = function (target, target_start, start, end) {
+ var source = this
+
+ if (!start) start = 0
+ if (!end && end !== 0) end = this.length
+ if (!target_start) target_start = 0
+
+ // Copy 0 bytes; we're done
+ if (end === start) return
+ if (target.length === 0 || source.length === 0) return
+
+ // Fatal error conditions
+ assert(end >= start, 'sourceEnd < sourceStart')
+ assert(target_start >= 0 && target_start < target.length,
+ 'targetStart out of bounds')
+ assert(start >= 0 && start < source.length, 'sourceStart out of bounds')
+ assert(end >= 0 && end <= source.length, 'sourceEnd out of bounds')
+
+ // Are we oob?
+ if (end > this.length)
+ end = this.length
+ if (target.length - target_start < end - start)
+ end = target.length - target_start + start
+
+ var len = end - start
+
+ if (len < 100 || !Buffer._useTypedArrays) {
+ for (var i = 0; i < len; i++) {
+ target[i + target_start] = this[i + start]
+ }
+ } else {
+ target._set(this.subarray(start, start + len), target_start)
+ }
+}
+
+function base64Slice (buf, start, end) {
+ if (start === 0 && end === buf.length) {
+ return base64.fromByteArray(buf)
+ } else {
+ return base64.fromByteArray(buf.slice(start, end))
+ }
+}
+
+function utf8Slice (buf, start, end) {
+ var res = ''
+ var tmp = ''
+ end = Math.min(buf.length, end)
+
+ for (var i = start; i < end; i++) {
+ if (buf[i] <= 0x7F) {
+ res += decodeUtf8Char(tmp) + String.fromCharCode(buf[i])
+ tmp = ''
+ } else {
+ tmp += '%' + buf[i].toString(16)
+ }
+ }
+
+ return res + decodeUtf8Char(tmp)
+}
+
+function asciiSlice (buf, start, end) {
+ var ret = ''
+ end = Math.min(buf.length, end)
+
+ for (var i = start; i < end; i++) {
+ ret += String.fromCharCode(buf[i])
+ }
+ return ret
+}
+
+function binarySlice (buf, start, end) {
+ return asciiSlice(buf, start, end)
+}
+
+function hexSlice (buf, start, end) {
+ var len = buf.length
+
+ if (!start || start < 0) start = 0
+ if (!end || end < 0 || end > len) end = len
+
+ var out = ''
+ for (var i = start; i < end; i++) {
+ out += toHex(buf[i])
+ }
+ return out
+}
+
+function utf16leSlice (buf, start, end) {
+ var bytes = buf.slice(start, end)
+ var res = ''
+ for (var i = 0; i < bytes.length; i += 2) {
+ res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256)
+ }
+ return res
+}
+
+Buffer.prototype.slice = function (start, end) {
+ var len = this.length
+ start = clamp(start, len, 0)
+ end = clamp(end, len, len)
+
+ if (Buffer._useTypedArrays) {
+ return Buffer._augment(this.subarray(start, end))
+ } else {
+ var sliceLen = end - start
+ var newBuf = new Buffer(sliceLen, undefined, true)
+ for (var i = 0; i < sliceLen; i++) {
+ newBuf[i] = this[i + start]
+ }
+ return newBuf
+ }
+}
+
+// `get` will be removed in Node 0.13+
+Buffer.prototype.get = function (offset) {
+ console.log('.get() is deprecated. Access using array indexes instead.')
+ return this.readUInt8(offset)
+}
+
+// `set` will be removed in Node 0.13+
+Buffer.prototype.set = function (v, offset) {
+ console.log('.set() is deprecated. Access using array indexes instead.')
+ return this.writeUInt8(v, offset)
+}
+
+Buffer.prototype.readUInt8 = function (offset, noAssert) {
+ if (!noAssert) {
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset < this.length, 'Trying to read beyond buffer length')
+ }
+
+ if (offset >= this.length)
+ return
+
+ return this[offset]
+}
+
+function readUInt16 (buf, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset + 1 < buf.length, 'Trying to read beyond buffer length')
+ }
+
+ var len = buf.length
+ if (offset >= len)
+ return
+
+ var val
+ if (littleEndian) {
+ val = buf[offset]
+ if (offset + 1 < len)
+ val |= buf[offset + 1] << 8
+ } else {
+ val = buf[offset] << 8
+ if (offset + 1 < len)
+ val |= buf[offset + 1]
+ }
+ return val
+}
+
+Buffer.prototype.readUInt16LE = function (offset, noAssert) {
+ return readUInt16(this, offset, true, noAssert)
+}
+
+Buffer.prototype.readUInt16BE = function (offset, noAssert) {
+ return readUInt16(this, offset, false, noAssert)
+}
+
+function readUInt32 (buf, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset + 3 < buf.length, 'Trying to read beyond buffer length')
+ }
+
+ var len = buf.length
+ if (offset >= len)
+ return
+
+ var val
+ if (littleEndian) {
+ if (offset + 2 < len)
+ val = buf[offset + 2] << 16
+ if (offset + 1 < len)
+ val |= buf[offset + 1] << 8
+ val |= buf[offset]
+ if (offset + 3 < len)
+ val = val + (buf[offset + 3] << 24 >>> 0)
+ } else {
+ if (offset + 1 < len)
+ val = buf[offset + 1] << 16
+ if (offset + 2 < len)
+ val |= buf[offset + 2] << 8
+ if (offset + 3 < len)
+ val |= buf[offset + 3]
+ val = val + (buf[offset] << 24 >>> 0)
+ }
+ return val
+}
+
+Buffer.prototype.readUInt32LE = function (offset, noAssert) {
+ return readUInt32(this, offset, true, noAssert)
+}
+
+Buffer.prototype.readUInt32BE = function (offset, noAssert) {
+ return readUInt32(this, offset, false, noAssert)
+}
+
+Buffer.prototype.readInt8 = function (offset, noAssert) {
+ if (!noAssert) {
+ assert(offset !== undefined && offset !== null,
+ 'missing offset')
+ assert(offset < this.length, 'Trying to read beyond buffer length')
+ }
+
+ if (offset >= this.length)
+ return
+
+ var neg = this[offset] & 0x80
+ if (neg)
+ return (0xff - this[offset] + 1) * -1
+ else
+ return this[offset]
+}
+
+function readInt16 (buf, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset + 1 < buf.length, 'Trying to read beyond buffer length')
+ }
+
+ var len = buf.length
+ if (offset >= len)
+ return
+
+ var val = readUInt16(buf, offset, littleEndian, true)
+ var neg = val & 0x8000
+ if (neg)
+ return (0xffff - val + 1) * -1
+ else
+ return val
+}
+
+Buffer.prototype.readInt16LE = function (offset, noAssert) {
+ return readInt16(this, offset, true, noAssert)
+}
+
+Buffer.prototype.readInt16BE = function (offset, noAssert) {
+ return readInt16(this, offset, false, noAssert)
+}
+
+function readInt32 (buf, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset + 3 < buf.length, 'Trying to read beyond buffer length')
+ }
+
+ var len = buf.length
+ if (offset >= len)
+ return
+
+ var val = readUInt32(buf, offset, littleEndian, true)
+ var neg = val & 0x80000000
+ if (neg)
+ return (0xffffffff - val + 1) * -1
+ else
+ return val
+}
+
+Buffer.prototype.readInt32LE = function (offset, noAssert) {
+ return readInt32(this, offset, true, noAssert)
+}
+
+Buffer.prototype.readInt32BE = function (offset, noAssert) {
+ return readInt32(this, offset, false, noAssert)
+}
+
+function readFloat (buf, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset + 3 < buf.length, 'Trying to read beyond buffer length')
+ }
+
+ return ieee754.read(buf, offset, littleEndian, 23, 4)
+}
+
+Buffer.prototype.readFloatLE = function (offset, noAssert) {
+ return readFloat(this, offset, true, noAssert)
+}
+
+Buffer.prototype.readFloatBE = function (offset, noAssert) {
+ return readFloat(this, offset, false, noAssert)
+}
+
+function readDouble (buf, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset + 7 < buf.length, 'Trying to read beyond buffer length')
+ }
+
+ return ieee754.read(buf, offset, littleEndian, 52, 8)
+}
+
+Buffer.prototype.readDoubleLE = function (offset, noAssert) {
+ return readDouble(this, offset, true, noAssert)
+}
+
+Buffer.prototype.readDoubleBE = function (offset, noAssert) {
+ return readDouble(this, offset, false, noAssert)
+}
+
+Buffer.prototype.writeUInt8 = function (value, offset, noAssert) {
+ if (!noAssert) {
+ assert(value !== undefined && value !== null, 'missing value')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset < this.length, 'trying to write beyond buffer length')
+ verifuint(value, 0xff)
+ }
+
+ if (offset >= this.length) return
+
+ this[offset] = value
+ return offset + 1
+}
+
+function writeUInt16 (buf, value, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(value !== undefined && value !== null, 'missing value')
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset + 1 < buf.length, 'trying to write beyond buffer length')
+ verifuint(value, 0xffff)
+ }
+
+ var len = buf.length
+ if (offset >= len)
+ return
+
+ for (var i = 0, j = Math.min(len - offset, 2); i < j; i++) {
+ buf[offset + i] =
+ (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>
+ (littleEndian ? i : 1 - i) * 8
+ }
+ return offset + 2
+}
+
+Buffer.prototype.writeUInt16LE = function (value, offset, noAssert) {
+ return writeUInt16(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeUInt16BE = function (value, offset, noAssert) {
+ return writeUInt16(this, value, offset, false, noAssert)
+}
+
+function writeUInt32 (buf, value, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(value !== undefined && value !== null, 'missing value')
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset + 3 < buf.length, 'trying to write beyond buffer length')
+ verifuint(value, 0xffffffff)
+ }
+
+ var len = buf.length
+ if (offset >= len)
+ return
+
+ for (var i = 0, j = Math.min(len - offset, 4); i < j; i++) {
+ buf[offset + i] =
+ (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff
+ }
+ return offset + 4
+}
+
+Buffer.prototype.writeUInt32LE = function (value, offset, noAssert) {
+ return writeUInt32(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeUInt32BE = function (value, offset, noAssert) {
+ return writeUInt32(this, value, offset, false, noAssert)
+}
+
+Buffer.prototype.writeInt8 = function (value, offset, noAssert) {
+ if (!noAssert) {
+ assert(value !== undefined && value !== null, 'missing value')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset < this.length, 'Trying to write beyond buffer length')
+ verifsint(value, 0x7f, -0x80)
+ }
+
+ if (offset >= this.length)
+ return
+
+ if (value >= 0)
+ this.writeUInt8(value, offset, noAssert)
+ else
+ this.writeUInt8(0xff + value + 1, offset, noAssert)
+ return offset + 1
+}
+
+function writeInt16 (buf, value, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(value !== undefined && value !== null, 'missing value')
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset + 1 < buf.length, 'Trying to write beyond buffer length')
+ verifsint(value, 0x7fff, -0x8000)
+ }
+
+ var len = buf.length
+ if (offset >= len)
+ return
+
+ if (value >= 0)
+ writeUInt16(buf, value, offset, littleEndian, noAssert)
+ else
+ writeUInt16(buf, 0xffff + value + 1, offset, littleEndian, noAssert)
+ return offset + 2
+}
+
+Buffer.prototype.writeInt16LE = function (value, offset, noAssert) {
+ return writeInt16(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeInt16BE = function (value, offset, noAssert) {
+ return writeInt16(this, value, offset, false, noAssert)
+}
+
+function writeInt32 (buf, value, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(value !== undefined && value !== null, 'missing value')
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset + 3 < buf.length, 'Trying to write beyond buffer length')
+ verifsint(value, 0x7fffffff, -0x80000000)
+ }
+
+ var len = buf.length
+ if (offset >= len)
+ return
+
+ if (value >= 0)
+ writeUInt32(buf, value, offset, littleEndian, noAssert)
+ else
+ writeUInt32(buf, 0xffffffff + value + 1, offset, littleEndian, noAssert)
+ return offset + 4
+}
+
+Buffer.prototype.writeInt32LE = function (value, offset, noAssert) {
+ return writeInt32(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeInt32BE = function (value, offset, noAssert) {
+ return writeInt32(this, value, offset, false, noAssert)
+}
+
+function writeFloat (buf, value, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(value !== undefined && value !== null, 'missing value')
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset + 3 < buf.length, 'Trying to write beyond buffer length')
+ verifIEEE754(value, 3.4028234663852886e+38, -3.4028234663852886e+38)
+ }
+
+ var len = buf.length
+ if (offset >= len)
+ return
+
+ ieee754.write(buf, value, offset, littleEndian, 23, 4)
+ return offset + 4
+}
+
+Buffer.prototype.writeFloatLE = function (value, offset, noAssert) {
+ return writeFloat(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeFloatBE = function (value, offset, noAssert) {
+ return writeFloat(this, value, offset, false, noAssert)
+}
+
+function writeDouble (buf, value, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ assert(value !== undefined && value !== null, 'missing value')
+ assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
+ assert(offset !== undefined && offset !== null, 'missing offset')
+ assert(offset + 7 < buf.length,
+ 'Trying to write beyond buffer length')
+ verifIEEE754(value, 1.7976931348623157E+308, -1.7976931348623157E+308)
+ }
+
+ var len = buf.length
+ if (offset >= len)
+ return
+
+ ieee754.write(buf, value, offset, littleEndian, 52, 8)
+ return offset + 8
+}
+
+Buffer.prototype.writeDoubleLE = function (value, offset, noAssert) {
+ return writeDouble(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeDoubleBE = function (value, offset, noAssert) {
+ return writeDouble(this, value, offset, false, noAssert)
+}
+
+// fill(value, start=0, end=buffer.length)
+Buffer.prototype.fill = function (value, start, end) {
+ if (!value) value = 0
+ if (!start) start = 0
+ if (!end) end = this.length
+
+ assert(end >= start, 'end < start')
+
+ // Fill 0 bytes; we're done
+ if (end === start) return
+ if (this.length === 0) return
+
+ assert(start >= 0 && start < this.length, 'start out of bounds')
+ assert(end >= 0 && end <= this.length, 'end out of bounds')
+
+ var i
+ if (typeof value === 'number') {
+ for (i = start; i < end; i++) {
+ this[i] = value
+ }
+ } else {
+ var bytes = utf8ToBytes(value.toString())
+ var len = bytes.length
+ for (i = start; i < end; i++) {
+ this[i] = bytes[i % len]
+ }
+ }
+
+ return this
+}
+
+Buffer.prototype.inspect = function () {
+ var out = []
+ var len = this.length
+ for (var i = 0; i < len; i++) {
+ out[i] = toHex(this[i])
+ if (i === exports.INSPECT_MAX_BYTES) {
+ out[i + 1] = '...'
+ break
+ }
+ }
+ return '<Buffer ' + out.join(' ') + '>'
+}
+
+/**
+ * Creates a new `ArrayBuffer` with the *copied* memory of the buffer instance.
+ * Added in Node 0.12. Only available in browsers that support ArrayBuffer.
+ */
+Buffer.prototype.toArrayBuffer = function () {
+ if (typeof Uint8Array !== 'undefined') {
+ if (Buffer._useTypedArrays) {
+ return (new Buffer(this)).buffer
+ } else {
+ var buf = new Uint8Array(this.length)
+ for (var i = 0, len = buf.length; i < len; i += 1) {
+ buf[i] = this[i]
+ }
+ return buf.buffer
+ }
+ } else {
+ throw new Error('Buffer.toArrayBuffer not supported in this browser')
+ }
+}
+
+// HELPER FUNCTIONS
+// ================
+
+var BP = Buffer.prototype
+
+/**
+ * Augment a Uint8Array *instance* (not the Uint8Array class!) with Buffer methods
+ */
+Buffer._augment = function (arr) {
+ arr._isBuffer = true
+
+ // save reference to original Uint8Array get/set methods before overwriting
+ arr._get = arr.get
+ arr._set = arr.set
+
+ // deprecated, will be removed in node 0.13+
+ arr.get = BP.get
+ arr.set = BP.set
+
+ arr.write = BP.write
+ arr.toString = BP.toString
+ arr.toLocaleString = BP.toString
+ arr.toJSON = BP.toJSON
+ arr.equals = BP.equals
+ arr.compare = BP.compare
+ arr.copy = BP.copy
+ arr.slice = BP.slice
+ arr.readUInt8 = BP.readUInt8
+ arr.readUInt16LE = BP.readUInt16LE
+ arr.readUInt16BE = BP.readUInt16BE
+ arr.readUInt32LE = BP.readUInt32LE
+ arr.readUInt32BE = BP.readUInt32BE
+ arr.readInt8 = BP.readInt8
+ arr.readInt16LE = BP.readInt16LE
+ arr.readInt16BE = BP.readInt16BE
+ arr.readInt32LE = BP.readInt32LE
+ arr.readInt32BE = BP.readInt32BE
+ arr.readFloatLE = BP.readFloatLE
+ arr.readFloatBE = BP.readFloatBE
+ arr.readDoubleLE = BP.readDoubleLE
+ arr.readDoubleBE = BP.readDoubleBE
+ arr.writeUInt8 = BP.writeUInt8
+ arr.writeUInt16LE = BP.writeUInt16LE
+ arr.writeUInt16BE = BP.writeUInt16BE
+ arr.writeUInt32LE = BP.writeUInt32LE
+ arr.writeUInt32BE = BP.writeUInt32BE
+ arr.writeInt8 = BP.writeInt8
+ arr.writeInt16LE = BP.writeInt16LE
+ arr.writeInt16BE = BP.writeInt16BE
+ arr.writeInt32LE = BP.writeInt32LE
+ arr.writeInt32BE = BP.writeInt32BE
+ arr.writeFloatLE = BP.writeFloatLE
+ arr.writeFloatBE = BP.writeFloatBE
+ arr.writeDoubleLE = BP.writeDoubleLE
+ arr.writeDoubleBE = BP.writeDoubleBE
+ arr.fill = BP.fill
+ arr.inspect = BP.inspect
+ arr.toArrayBuffer = BP.toArrayBuffer
+
+ return arr
+}
+
+function stringtrim (str) {
+ if (str.trim) return str.trim()
+ return str.replace(/^\s+|\s+$/g, '')
+}
+
+// slice(start, end)
+function clamp (index, len, defaultValue) {
+ if (typeof index !== 'number') return defaultValue
+ index = ~~index; // Coerce to integer.
+ if (index >= len) return len
+ if (index >= 0) return index
+ index += len
+ if (index >= 0) return index
+ return 0
+}
+
+function coerce (length) {
+ // Coerce length to a number (possibly NaN), round up
+ // in case it's fractional (e.g. 123.456) then do a
+ // double negate to coerce a NaN to 0. Easy, right?
+ length = ~~Math.ceil(+length)
+ return length < 0 ? 0 : length
+}
+
+function isArray (subject) {
+ return (Array.isArray || function (subject) {
+ return Object.prototype.toString.call(subject) === '[object Array]'
+ })(subject)
+}
+
+function isArrayish (subject) {
+ return isArray(subject) || Buffer.isBuffer(subject) ||
+ subject && typeof subject === 'object' &&
+ typeof subject.length === 'number'
+}
+
+function toHex (n) {
+ if (n < 16) return '0' + n.toString(16)
+ return n.toString(16)
+}
+
+function utf8ToBytes (str) {
+ var byteArray = []
+ for (var i = 0; i < str.length; i++) {
+ var b = str.charCodeAt(i)
+ if (b <= 0x7F) {
+ byteArray.push(b)
+ } else {
+ var start = i
+ if (b >= 0xD800 && b <= 0xDFFF) i++
+ var h = encodeURIComponent(str.slice(start, i+1)).substr(1).split('%')
+ for (var j = 0; j < h.length; j++) {
+ byteArray.push(parseInt(h[j], 16))
+ }
+ }
+ }
+ return byteArray
+}
+
+function asciiToBytes (str) {
+ var byteArray = []
+ for (var i = 0; i < str.length; i++) {
+ // Node's code seems to be doing this and not & 0x7F..
+ byteArray.push(str.charCodeAt(i) & 0xFF)
+ }
+ return byteArray
+}
+
+function utf16leToBytes (str) {
+ var c, hi, lo
+ var byteArray = []
+ for (var i = 0; i < str.length; i++) {
+ c = str.charCodeAt(i)
+ hi = c >> 8
+ lo = c % 256
+ byteArray.push(lo)
+ byteArray.push(hi)
+ }
+
+ return byteArray
+}
+
+function base64ToBytes (str) {
+ return base64.toByteArray(str)
+}
+
+function blitBuffer (src, dst, offset, length) {
+ for (var i = 0; i < length; i++) {
+ if ((i + offset >= dst.length) || (i >= src.length))
+ break
+ dst[i + offset] = src[i]
+ }
+ return i
+}
+
+function decodeUtf8Char (str) {
+ try {
+ return decodeURIComponent(str)
+ } catch (err) {
+ return String.fromCharCode(0xFFFD) // UTF 8 invalid char
+ }
+}
+
+/*
+ * We have to make sure that the value is a valid integer. This means that it
+ * is non-negative. It has no fractional component and that it does not
+ * exceed the maximum allowed value.
+ */
+function verifuint (value, max) {
+ assert(typeof value === 'number', 'cannot write a non-number as a number')
+ assert(value >= 0, 'specified a negative value for writing an unsigned value')
+ assert(value <= max, 'value is larger than maximum value for type')
+ assert(Math.floor(value) === value, 'value has a fractional component')
+}
+
+function verifsint (value, max, min) {
+ assert(typeof value === 'number', 'cannot write a non-number as a number')
+ assert(value <= max, 'value larger than maximum allowed value')
+ assert(value >= min, 'value smaller than minimum allowed value')
+ assert(Math.floor(value) === value, 'value has a fractional component')
+}
+
+function verifIEEE754 (value, max, min) {
+ assert(typeof value === 'number', 'cannot write a non-number as a number')
+ assert(value <= max, 'value larger than maximum allowed value')
+ assert(value >= min, 'value smaller than minimum allowed value')
+}
+
+function assert (test, message) {
+ if (!test) throw new Error(message || 'Failed assertion')
+}
+
+},{"base64-js":2,"ieee754":3}],2:[function(require,module,exports){
+var lookup = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
+
+;(function (exports) {
+ 'use strict';
+
+ var Arr = (typeof Uint8Array !== 'undefined')
+ ? Uint8Array
+ : Array
+
+ var PLUS = '+'.charCodeAt(0)
+ var SLASH = '/'.charCodeAt(0)
+ var NUMBER = '0'.charCodeAt(0)
+ var LOWER = 'a'.charCodeAt(0)
+ var UPPER = 'A'.charCodeAt(0)
+
+ function decode (elt) {
+ var code = elt.charCodeAt(0)
+ if (code === PLUS)
+ return 62 // '+'
+ if (code === SLASH)
+ return 63 // '/'
+ if (code < NUMBER)
+ return -1 //no match
+ if (code < NUMBER + 10)
+ return code - NUMBER + 26 + 26
+ if (code < UPPER + 26)
+ return code - UPPER
+ if (code < LOWER + 26)
+ return code - LOWER + 26
+ }
+
+ function b64ToByteArray (b64) {
+ var i, j, l, tmp, placeHolders, arr
+
+ if (b64.length % 4 > 0) {
+ throw new Error('Invalid string. Length must be a multiple of 4')
+ }
+
+ // the number of equal signs (place holders)
+ // if there are two placeholders, than the two characters before it
+ // represent one byte
+ // if there is only one, then the three characters before it represent 2 bytes
+ // this is just a cheap hack to not do indexOf twice
+ var len = b64.length
+ placeHolders = '=' === b64.charAt(len - 2) ? 2 : '=' === b64.charAt(len - 1) ? 1 : 0
+
+ // base64 is 4/3 + up to two characters of the original data
+ arr = new Arr(b64.length * 3 / 4 - placeHolders)
+
+ // if there are placeholders, only get up to the last complete 4 chars
+ l = placeHolders > 0 ? b64.length - 4 : b64.length
+
+ var L = 0
+
+ function push (v) {
+ arr[L++] = v
+ }
+
+ for (i = 0, j = 0; i < l; i += 4, j += 3) {
+ tmp = (decode(b64.charAt(i)) << 18) | (decode(b64.charAt(i + 1)) << 12) | (decode(b64.charAt(i + 2)) << 6) | decode(b64.charAt(i + 3))
+ push((tmp & 0xFF0000) >> 16)
+ push((tmp & 0xFF00) >> 8)
+ push(tmp & 0xFF)
+ }
+
+ if (placeHolders === 2) {
+ tmp = (decode(b64.charAt(i)) << 2) | (decode(b64.charAt(i + 1)) >> 4)
+ push(tmp & 0xFF)
+ } else if (placeHolders === 1) {
+ tmp = (decode(b64.charAt(i)) << 10) | (decode(b64.charAt(i + 1)) << 4) | (decode(b64.charAt(i + 2)) >> 2)
+ push((tmp >> 8) & 0xFF)
+ push(tmp & 0xFF)
+ }
+
+ return arr
+ }
+
+ function uint8ToBase64 (uint8) {
+ var i,
+ extraBytes = uint8.length % 3, // if we have 1 byte left, pad 2 bytes
+ output = "",
+ temp, length
+
+ function encode (num) {
+ return lookup.charAt(num)
+ }
+
+ function tripletToBase64 (num) {
+ return encode(num >> 18 & 0x3F) + encode(num >> 12 & 0x3F) + encode(num >> 6 & 0x3F) + encode(num & 0x3F)
+ }
+
+ // go through the array every three bytes, we'll deal with trailing stuff later
+ for (i = 0, length = uint8.length - extraBytes; i < length; i += 3) {
+ temp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
+ output += tripletToBase64(temp)
+ }
+
+ // pad the end with zeros, but make sure to not forget the extra bytes
+ switch (extraBytes) {
+ case 1:
+ temp = uint8[uint8.length - 1]
+ output += encode(temp >> 2)
+ output += encode((temp << 4) & 0x3F)
+ output += '=='
+ break
+ case 2:
+ temp = (uint8[uint8.length - 2] << 8) + (uint8[uint8.length - 1])
+ output += encode(temp >> 10)
+ output += encode((temp >> 4) & 0x3F)
+ output += encode((temp << 2) & 0x3F)
+ output += '='
+ break
+ }
+
+ return output
+ }
+
+ exports.toByteArray = b64ToByteArray
+ exports.fromByteArray = uint8ToBase64
+}(typeof exports === 'undefined' ? (this.base64js = {}) : exports))
+
+},{}],3:[function(require,module,exports){
+exports.read = function(buffer, offset, isLE, mLen, nBytes) {
+ var e, m,
+ eLen = nBytes * 8 - mLen - 1,
+ eMax = (1 << eLen) - 1,
+ eBias = eMax >> 1,
+ nBits = -7,
+ i = isLE ? (nBytes - 1) : 0,
+ d = isLE ? -1 : 1,
+ s = buffer[offset + i];
+
+ i += d;
+
+ e = s & ((1 << (-nBits)) - 1);
+ s >>= (-nBits);
+ nBits += eLen;
+ for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8);
+
+ m = e & ((1 << (-nBits)) - 1);
+ e >>= (-nBits);
+ nBits += mLen;
+ for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8);
+
+ if (e === 0) {
+ e = 1 - eBias;
+ } else if (e === eMax) {
+ return m ? NaN : ((s ? -1 : 1) * Infinity);
+ } else {
+ m = m + Math.pow(2, mLen);
+ e = e - eBias;
+ }
+ return (s ? -1 : 1) * m * Math.pow(2, e - mLen);
+};
+
+exports.write = function(buffer, value, offset, isLE, mLen, nBytes) {
+ var e, m, c,
+ eLen = nBytes * 8 - mLen - 1,
+ eMax = (1 << eLen) - 1,
+ eBias = eMax >> 1,
+ rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0),
+ i = isLE ? 0 : (nBytes - 1),
+ d = isLE ? 1 : -1,
+ s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0;
+
+ value = Math.abs(value);
+
+ if (isNaN(value) || value === Infinity) {
+ m = isNaN(value) ? 1 : 0;
+ e = eMax;
+ } else {
+ e = Math.floor(Math.log(value) / Math.LN2);
+ if (value * (c = Math.pow(2, -e)) < 1) {
+ e--;
+ c *= 2;
+ }
+ if (e + eBias >= 1) {
+ value += rt / c;
+ } else {
+ value += rt * Math.pow(2, 1 - eBias);
+ }
+ if (value * c >= 2) {
+ e++;
+ c /= 2;
+ }
+
+ if (e + eBias >= eMax) {
+ m = 0;
+ e = eMax;
+ } else if (e + eBias >= 1) {
+ m = (value * c - 1) * Math.pow(2, mLen);
+ e = e + eBias;
+ } else {
+ m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen);
+ e = 0;
+ }
+ }
+
+ for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8);
+
+ e = (e << mLen) | m;
+ eLen += mLen;
+ for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8);
+
+ buffer[offset + i - d] |= s * 128;
+};
+
+},{}],4:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+function EventEmitter() {
+ this._events = this._events || {};
+ this._maxListeners = this._maxListeners || undefined;
+}
+module.exports = EventEmitter;
+
+// Backwards-compat with node 0.10.x
+EventEmitter.EventEmitter = EventEmitter;
+
+EventEmitter.prototype._events = undefined;
+EventEmitter.prototype._maxListeners = undefined;
+
+// By default EventEmitters will print a warning if more than 10 listeners are
+// added to it. This is a useful default which helps finding memory leaks.
+EventEmitter.defaultMaxListeners = 10;
+
+// Obviously not all Emitters should be limited to 10. This function allows
+// that to be increased. Set to zero for unlimited.
+EventEmitter.prototype.setMaxListeners = function(n) {
+ if (!isNumber(n) || n < 0 || isNaN(n))
+ throw TypeError('n must be a positive number');
+ this._maxListeners = n;
+ return this;
+};
+
+EventEmitter.prototype.emit = function(type) {
+ var er, handler, len, args, i, listeners;
+
+ if (!this._events)
+ this._events = {};
+
+ // If there is no 'error' event listener then throw.
+ if (type === 'error') {
+ if (!this._events.error ||
+ (isObject(this._events.error) && !this._events.error.length)) {
+ er = arguments[1];
+ if (er instanceof Error) {
+ throw er; // Unhandled 'error' event
+ } else {
+ throw TypeError('Uncaught, unspecified "error" event.');
+ }
+ return false;
+ }
+ }
+
+ handler = this._events[type];
+
+ if (isUndefined(handler))
+ return false;
+
+ if (isFunction(handler)) {
+ switch (arguments.length) {
+ // fast cases
+ case 1:
+ handler.call(this);
+ break;
+ case 2:
+ handler.call(this, arguments[1]);
+ break;
+ case 3:
+ handler.call(this, arguments[1], arguments[2]);
+ break;
+ // slower
+ default:
+ len = arguments.length;
+ args = new Array(len - 1);
+ for (i = 1; i < len; i++)
+ args[i - 1] = arguments[i];
+ handler.apply(this, args);
+ }
+ } else if (isObject(handler)) {
+ len = arguments.length;
+ args = new Array(len - 1);
+ for (i = 1; i < len; i++)
+ args[i - 1] = arguments[i];
+
+ listeners = handler.slice();
+ len = listeners.length;
+ for (i = 0; i < len; i++)
+ listeners[i].apply(this, args);
+ }
+
+ return true;
+};
+
+EventEmitter.prototype.addListener = function(type, listener) {
+ var m;
+
+ if (!isFunction(listener))
+ throw TypeError('listener must be a function');
+
+ if (!this._events)
+ this._events = {};
+
+ // To avoid recursion in the case that type === "newListener"! Before
+ // adding it to the listeners, first emit "newListener".
+ if (this._events.newListener)
+ this.emit('newListener', type,
+ isFunction(listener.listener) ?
+ listener.listener : listener);
+
+ if (!this._events[type])
+ // Optimize the case of one listener. Don't need the extra array object.
+ this._events[type] = listener;
+ else if (isObject(this._events[type]))
+ // If we've already got an array, just append.
+ this._events[type].push(listener);
+ else
+ // Adding the second element, need to change to array.
+ this._events[type] = [this._events[type], listener];
+
+ // Check for listener leak
+ if (isObject(this._events[type]) && !this._events[type].warned) {
+ var m;
+ if (!isUndefined(this._maxListeners)) {
+ m = this._maxListeners;
+ } else {
+ m = EventEmitter.defaultMaxListeners;
+ }
+
+ if (m && m > 0 && this._events[type].length > m) {
+ this._events[type].warned = true;
+ console.error('(node) warning: possible EventEmitter memory ' +
+ 'leak detected. %d listeners added. ' +
+ 'Use emitter.setMaxListeners() to increase limit.',
+ this._events[type].length);
+ if (typeof console.trace === 'function') {
+ // not supported in IE 10
+ console.trace();
+ }
+ }
+ }
+
+ return this;
+};
+
+EventEmitter.prototype.on = EventEmitter.prototype.addListener;
+
+EventEmitter.prototype.once = function(type, listener) {
+ if (!isFunction(listener))
+ throw TypeError('listener must be a function');
+
+ var fired = false;
+
+ function g() {
+ this.removeListener(type, g);
+
+ if (!fired) {
+ fired = true;
+ listener.apply(this, arguments);
+ }
+ }
+
+ g.listener = listener;
+ this.on(type, g);
+
+ return this;
+};
+
+// emits a 'removeListener' event iff the listener was removed
+EventEmitter.prototype.removeListener = function(type, listener) {
+ var list, position, length, i;
+
+ if (!isFunction(listener))
+ throw TypeError('listener must be a function');
+
+ if (!this._events || !this._events[type])
+ return this;
+
+ list = this._events[type];
+ length = list.length;
+ position = -1;
+
+ if (list === listener ||
+ (isFunction(list.listener) && list.listener === listener)) {
+ delete this._events[type];
+ if (this._events.removeListener)
+ this.emit('removeListener', type, listener);
+
+ } else if (isObject(list)) {
+ for (i = length; i-- > 0;) {
+ if (list[i] === listener ||
+ (list[i].listener && list[i].listener === listener)) {
+ position = i;
+ break;
+ }
+ }
+
+ if (position < 0)
+ return this;
+
+ if (list.length === 1) {
+ list.length = 0;
+ delete this._events[type];
+ } else {
+ list.splice(position, 1);
+ }
+
+ if (this._events.removeListener)
+ this.emit('removeListener', type, listener);
+ }
+
+ return this;
+};
+
+EventEmitter.prototype.removeAllListeners = function(type) {
+ var key, listeners;
+
+ if (!this._events)
+ return this;
+
+ // not listening for removeListener, no need to emit
+ if (!this._events.removeListener) {
+ if (arguments.length === 0)
+ this._events = {};
+ else if (this._events[type])
+ delete this._events[type];
+ return this;
+ }
+
+ // emit removeListener for all listeners on all events
+ if (arguments.length === 0) {
+ for (key in this._events) {
+ if (key === 'removeListener') continue;
+ this.removeAllListeners(key);
+ }
+ this.removeAllListeners('removeListener');
+ this._events = {};
+ return this;
+ }
+
+ listeners = this._events[type];
+
+ if (isFunction(listeners)) {
+ this.removeListener(type, listeners);
+ } else {
+ // LIFO order
+ while (listeners.length)
+ this.removeListener(type, listeners[listeners.length - 1]);
+ }
+ delete this._events[type];
+
+ return this;
+};
+
+EventEmitter.prototype.listeners = function(type) {
+ var ret;
+ if (!this._events || !this._events[type])
+ ret = [];
+ else if (isFunction(this._events[type]))
+ ret = [this._events[type]];
+ else
+ ret = this._events[type].slice();
+ return ret;
+};
+
+EventEmitter.listenerCount = function(emitter, type) {
+ var ret;
+ if (!emitter._events || !emitter._events[type])
+ ret = 0;
+ else if (isFunction(emitter._events[type]))
+ ret = 1;
+ else
+ ret = emitter._events[type].length;
+ return ret;
+};
+
+function isFunction(arg) {
+ return typeof arg === 'function';
+}
+
+function isNumber(arg) {
+ return typeof arg === 'number';
+}
+
+function isObject(arg) {
+ return typeof arg === 'object' && arg !== null;
+}
+
+function isUndefined(arg) {
+ return arg === void 0;
+}
+
+},{}],5:[function(require,module,exports){
+if (typeof Object.create === 'function') {
+ // implementation from standard node.js 'util' module
+ module.exports = function inherits(ctor, superCtor) {
+ ctor.super_ = superCtor
+ ctor.prototype = Object.create(superCtor.prototype, {
+ constructor: {
+ value: ctor,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+ };
+} else {
+ // old school shim for old browsers
+ module.exports = function inherits(ctor, superCtor) {
+ ctor.super_ = superCtor
+ var TempCtor = function () {}
+ TempCtor.prototype = superCtor.prototype
+ ctor.prototype = new TempCtor()
+ ctor.prototype.constructor = ctor
+ }
+}
+
+},{}],6:[function(require,module,exports){
+// shim for using process in browser
+
+var process = module.exports = {};
+
+process.nextTick = (function () {
+ var canSetImmediate = typeof window !== 'undefined'
+ && window.setImmediate;
+ var canPost = typeof window !== 'undefined'
+ && window.postMessage && window.addEventListener
+ ;
+
+ if (canSetImmediate) {
+ return function (f) { return window.setImmediate(f) };
+ }
+
+ if (canPost) {
+ var queue = [];
+ window.addEventListener('message', function (ev) {
+ var source = ev.source;
+ if ((source === window || source === null) && ev.data === 'process-tick') {
+ ev.stopPropagation();
+ if (queue.length > 0) {
+ var fn = queue.shift();
+ fn();
+ }
+ }
+ }, true);
+
+ return function nextTick(fn) {
+ queue.push(fn);
+ window.postMessage('process-tick', '*');
+ };
+ }
+
+ return function nextTick(fn) {
+ setTimeout(fn, 0);
+ };
+})();
+
+process.title = 'browser';
+process.browser = true;
+process.env = {};
+process.argv = [];
+
+function noop() {}
+
+process.on = noop;
+process.addListener = noop;
+process.once = noop;
+process.off = noop;
+process.removeListener = noop;
+process.removeAllListeners = noop;
+process.emit = noop;
+
+process.binding = function (name) {
+ throw new Error('process.binding is not supported');
+}
+
+// TODO(shtylman)
+process.cwd = function () { return '/' };
+process.chdir = function (dir) {
+ throw new Error('process.chdir is not supported');
+};
+
+},{}],7:[function(require,module,exports){
+module.exports = require("./lib/_stream_duplex.js")
+
+},{"./lib/_stream_duplex.js":8}],8:[function(require,module,exports){
+(function (process){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// a duplex stream is just a stream that is both readable and writable.
+// Since JS doesn't have multiple prototypal inheritance, this class
+// prototypally inherits from Readable, and then parasitically from
+// Writable.
+
+module.exports = Duplex;
+
+/*<replacement>*/
+var objectKeys = Object.keys || function (obj) {
+ var keys = [];
+ for (var key in obj) keys.push(key);
+ return keys;
+}
+/*</replacement>*/
+
+
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
+
+var Readable = require('./_stream_readable');
+var Writable = require('./_stream_writable');
+
+util.inherits(Duplex, Readable);
+
+forEach(objectKeys(Writable.prototype), function(method) {
+ if (!Duplex.prototype[method])
+ Duplex.prototype[method] = Writable.prototype[method];
+});
+
+function Duplex(options) {
+ if (!(this instanceof Duplex))
+ return new Duplex(options);
+
+ Readable.call(this, options);
+ Writable.call(this, options);
+
+ if (options && options.readable === false)
+ this.readable = false;
+
+ if (options && options.writable === false)
+ this.writable = false;
+
+ this.allowHalfOpen = true;
+ if (options && options.allowHalfOpen === false)
+ this.allowHalfOpen = false;
+
+ this.once('end', onend);
+}
+
+// the no-half-open enforcer
+function onend() {
+ // if we allow half-open state, or if the writable side ended,
+ // then we're ok.
+ if (this.allowHalfOpen || this._writableState.ended)
+ return;
+
+ // no more data can be written.
+ // But allow more writes to happen in this tick.
+ process.nextTick(this.end.bind(this));
+}
+
+function forEach (xs, f) {
+ for (var i = 0, l = xs.length; i < l; i++) {
+ f(xs[i], i);
+ }
+}
+
+}).call(this,require("Vms28V"))
+},{"./_stream_readable":10,"./_stream_writable":12,"Vms28V":6,"core-util-is":13,"inherits":5}],9:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// a passthrough stream.
+// basically just the most minimal sort of Transform stream.
+// Every written chunk gets output as-is.
+
+module.exports = PassThrough;
+
+var Transform = require('./_stream_transform');
+
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
+
+util.inherits(PassThrough, Transform);
+
+function PassThrough(options) {
+ if (!(this instanceof PassThrough))
+ return new PassThrough(options);
+
+ Transform.call(this, options);
+}
+
+PassThrough.prototype._transform = function(chunk, encoding, cb) {
+ cb(null, chunk);
+};
+
+},{"./_stream_transform":11,"core-util-is":13,"inherits":5}],10:[function(require,module,exports){
+(function (process){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+module.exports = Readable;
+
+/*<replacement>*/
+var isArray = require('isarray');
+/*</replacement>*/
+
+
+/*<replacement>*/
+var Buffer = require('buffer').Buffer;
+/*</replacement>*/
+
+Readable.ReadableState = ReadableState;
+
+var EE = require('events').EventEmitter;
+
+/*<replacement>*/
+if (!EE.listenerCount) EE.listenerCount = function(emitter, type) {
+ return emitter.listeners(type).length;
+};
+/*</replacement>*/
+
+var Stream = require('stream');
+
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
+
+var StringDecoder;
+
+util.inherits(Readable, Stream);
+
+function ReadableState(options, stream) {
+ options = options || {};
+
+ // the point at which it stops calling _read() to fill the buffer
+ // Note: 0 is a valid value, means "don't call _read preemptively ever"
+ var hwm = options.highWaterMark;
+ this.highWaterMark = (hwm || hwm === 0) ? hwm : 16 * 1024;
+
+ // cast to ints.
+ this.highWaterMark = ~~this.highWaterMark;
+
+ this.buffer = [];
+ this.length = 0;
+ this.pipes = null;
+ this.pipesCount = 0;
+ this.flowing = false;
+ this.ended = false;
+ this.endEmitted = false;
+ this.reading = false;
+
+ // In streams that never have any data, and do push(null) right away,
+ // the consumer can miss the 'end' event if they do some I/O before
+ // consuming the stream. So, we don't emit('end') until some reading
+ // happens.
+ this.calledRead = false;
+
+ // a flag to be able to tell if the onwrite cb is called immediately,
+ // or on a later tick. We set this to true at first, becuase any
+ // actions that shouldn't happen until "later" should generally also
+ // not happen before the first write call.
+ this.sync = true;
+
+ // whenever we return null, then we set a flag to say
+ // that we're awaiting a 'readable' event emission.
+ this.needReadable = false;
+ this.emittedReadable = false;
+ this.readableListening = false;
+
+
+ // object stream flag. Used to make read(n) ignore n and to
+ // make all the buffer merging and length checks go away
+ this.objectMode = !!options.objectMode;
+
+ // Crypto is kind of old and crusty. Historically, its default string
+ // encoding is 'binary' so we have to make this configurable.
+ // Everything else in the universe uses 'utf8', though.
+ this.defaultEncoding = options.defaultEncoding || 'utf8';
+
+ // when piping, we only care about 'readable' events that happen
+ // after read()ing all the bytes and not getting any pushback.
+ this.ranOut = false;
+
+ // the number of writers that are awaiting a drain event in .pipe()s
+ this.awaitDrain = 0;
+
+ // if true, a maybeReadMore has been scheduled
+ this.readingMore = false;
+
+ this.decoder = null;
+ this.encoding = null;
+ if (options.encoding) {
+ if (!StringDecoder)
+ StringDecoder = require('string_decoder/').StringDecoder;
+ this.decoder = new StringDecoder(options.encoding);
+ this.encoding = options.encoding;
+ }
+}
+
+function Readable(options) {
+ if (!(this instanceof Readable))
+ return new Readable(options);
+
+ this._readableState = new ReadableState(options, this);
+
+ // legacy
+ this.readable = true;
+
+ Stream.call(this);
+}
+
+// Manually shove something into the read() buffer.
+// This returns true if the highWaterMark has not been hit yet,
+// similar to how Writable.write() returns true if you should
+// write() some more.
+Readable.prototype.push = function(chunk, encoding) {
+ var state = this._readableState;
+
+ if (typeof chunk === 'string' && !state.objectMode) {
+ encoding = encoding || state.defaultEncoding;
+ if (encoding !== state.encoding) {
+ chunk = new Buffer(chunk, encoding);
+ encoding = '';
+ }
+ }
+
+ return readableAddChunk(this, state, chunk, encoding, false);
+};
+
+// Unshift should *always* be something directly out of read()
+Readable.prototype.unshift = function(chunk) {
+ var state = this._readableState;
+ return readableAddChunk(this, state, chunk, '', true);
+};
+
+function readableAddChunk(stream, state, chunk, encoding, addToFront) {
+ var er = chunkInvalid(state, chunk);
+ if (er) {
+ stream.emit('error', er);
+ } else if (chunk === null || chunk === undefined) {
+ state.reading = false;
+ if (!state.ended)
+ onEofChunk(stream, state);
+ } else if (state.objectMode || chunk && chunk.length > 0) {
+ if (state.ended && !addToFront) {
+ var e = new Error('stream.push() after EOF');
+ stream.emit('error', e);
+ } else if (state.endEmitted && addToFront) {
+ var e = new Error('stream.unshift() after end event');
+ stream.emit('error', e);
+ } else {
+ if (state.decoder && !addToFront && !encoding)
+ chunk = state.decoder.write(chunk);
+
+ // update the buffer info.
+ state.length += state.objectMode ? 1 : chunk.length;
+ if (addToFront) {
+ state.buffer.unshift(chunk);
+ } else {
+ state.reading = false;
+ state.buffer.push(chunk);
+ }
+
+ if (state.needReadable)
+ emitReadable(stream);
+
+ maybeReadMore(stream, state);
+ }
+ } else if (!addToFront) {
+ state.reading = false;
+ }
+
+ return needMoreData(state);
+}
+
+
+
+// if it's past the high water mark, we can push in some more.
+// Also, if we have no data yet, we can stand some
+// more bytes. This is to work around cases where hwm=0,
+// such as the repl. Also, if the push() triggered a
+// readable event, and the user called read(largeNumber) such that
+// needReadable was set, then we ought to push more, so that another
+// 'readable' event will be triggered.
+function needMoreData(state) {
+ return !state.ended &&
+ (state.needReadable ||
+ state.length < state.highWaterMark ||
+ state.length === 0);
+}
+
+// backwards compatibility.
+Readable.prototype.setEncoding = function(enc) {
+ if (!StringDecoder)
+ StringDecoder = require('string_decoder/').StringDecoder;
+ this._readableState.decoder = new StringDecoder(enc);
+ this._readableState.encoding = enc;
+};
+
+// Don't raise the hwm > 128MB
+var MAX_HWM = 0x800000;
+function roundUpToNextPowerOf2(n) {
+ if (n >= MAX_HWM) {
+ n = MAX_HWM;
+ } else {
+ // Get the next highest power of 2
+ n--;
+ for (var p = 1; p < 32; p <<= 1) n |= n >> p;
+ n++;
+ }
+ return n;
+}
+
+function howMuchToRead(n, state) {
+ if (state.length === 0 && state.ended)
+ return 0;
+
+ if (state.objectMode)
+ return n === 0 ? 0 : 1;
+
+ if (isNaN(n) || n === null) {
+ // only flow one buffer at a time
+ if (state.flowing && state.buffer.length)
+ return state.buffer[0].length;
+ else
+ return state.length;
+ }
+
+ if (n <= 0)
+ return 0;
+
+ // If we're asking for more than the target buffer level,
+ // then raise the water mark. Bump up to the next highest
+ // power of 2, to prevent increasing it excessively in tiny
+ // amounts.
+ if (n > state.highWaterMark)
+ state.highWaterMark = roundUpToNextPowerOf2(n);
+
+ // don't have that much. return null, unless we've ended.
+ if (n > state.length) {
+ if (!state.ended) {
+ state.needReadable = true;
+ return 0;
+ } else
+ return state.length;
+ }
+
+ return n;
+}
+
+// you can override either this method, or the async _read(n) below.
+Readable.prototype.read = function(n) {
+ var state = this._readableState;
+ state.calledRead = true;
+ var nOrig = n;
+
+ if (typeof n !== 'number' || n > 0)
+ state.emittedReadable = false;
+
+ // if we're doing read(0) to trigger a readable event, but we
+ // already have a bunch of data in the buffer, then just trigger
+ // the 'readable' event and move on.
+ if (n === 0 &&
+ state.needReadable &&
+ (state.length >= state.highWaterMark || state.ended)) {
+ emitReadable(this);
+ return null;
+ }
+
+ n = howMuchToRead(n, state);
+
+ // if we've ended, and we're now clear, then finish it up.
+ if (n === 0 && state.ended) {
+ if (state.length === 0)
+ endReadable(this);
+ return null;
+ }
+
+ // All the actual chunk generation logic needs to be
+ // *below* the call to _read. The reason is that in certain
+ // synthetic stream cases, such as passthrough streams, _read
+ // may be a completely synchronous operation which may change
+ // the state of the read buffer, providing enough data when
+ // before there was *not* enough.
+ //
+ // So, the steps are:
+ // 1. Figure out what the state of things will be after we do
+ // a read from the buffer.
+ //
+ // 2. If that resulting state will trigger a _read, then call _read.
+ // Note that this may be asynchronous, or synchronous. Yes, it is
+ // deeply ugly to write APIs this way, but that still doesn't mean
+ // that the Readable class should behave improperly, as streams are
+ // designed to be sync/async agnostic.
+ // Take note if the _read call is sync or async (ie, if the read call
+ // has returned yet), so that we know whether or not it's safe to emit
+ // 'readable' etc.
+ //
+ // 3. Actually pull the requested chunks out of the buffer and return.
+
+ // if we need a readable event, then we need to do some reading.
+ var doRead = state.needReadable;
+
+ // if we currently have less than the highWaterMark, then also read some
+ if (state.length - n <= state.highWaterMark)
+ doRead = true;
+
+ // however, if we've ended, then there's no point, and if we're already
+ // reading, then it's unnecessary.
+ if (state.ended || state.reading)
+ doRead = false;
+
+ if (doRead) {
+ state.reading = true;
+ state.sync = true;
+ // if the length is currently zero, then we *need* a readable event.
+ if (state.length === 0)
+ state.needReadable = true;
+ // call internal read method
+ this._read(state.highWaterMark);
+ state.sync = false;
+ }
+
+ // If _read called its callback synchronously, then `reading`
+ // will be false, and we need to re-evaluate how much data we
+ // can return to the user.
+ if (doRead && !state.reading)
+ n = howMuchToRead(nOrig, state);
+
+ var ret;
+ if (n > 0)
+ ret = fromList(n, state);
+ else
+ ret = null;
+
+ if (ret === null) {
+ state.needReadable = true;
+ n = 0;
+ }
+
+ state.length -= n;
+
+ // If we have nothing in the buffer, then we want to know
+ // as soon as we *do* get something into the buffer.
+ if (state.length === 0 && !state.ended)
+ state.needReadable = true;
+
+ // If we happened to read() exactly the remaining amount in the
+ // buffer, and the EOF has been seen at this point, then make sure
+ // that we emit 'end' on the very next tick.
+ if (state.ended && !state.endEmitted && state.length === 0)
+ endReadable(this);
+
+ return ret;
+};
+
+function chunkInvalid(state, chunk) {
+ var er = null;
+ if (!Buffer.isBuffer(chunk) &&
+ 'string' !== typeof chunk &&
+ chunk !== null &&
+ chunk !== undefined &&
+ !state.objectMode &&
+ !er) {
+ er = new TypeError('Invalid non-string/buffer chunk');
+ }
+ return er;
+}
+
+
+function onEofChunk(stream, state) {
+ if (state.decoder && !state.ended) {
+ var chunk = state.decoder.end();
+ if (chunk && chunk.length) {
+ state.buffer.push(chunk);
+ state.length += state.objectMode ? 1 : chunk.length;
+ }
+ }
+ state.ended = true;
+
+ // if we've ended and we have some data left, then emit
+ // 'readable' now to make sure it gets picked up.
+ if (state.length > 0)
+ emitReadable(stream);
+ else
+ endReadable(stream);
+}
+
+// Don't emit readable right away in sync mode, because this can trigger
+// another read() call => stack overflow. This way, it might trigger
+// a nextTick recursion warning, but that's not so bad.
+function emitReadable(stream) {
+ var state = stream._readableState;
+ state.needReadable = false;
+ if (state.emittedReadable)
+ return;
+
+ state.emittedReadable = true;
+ if (state.sync)
+ process.nextTick(function() {
+ emitReadable_(stream);
+ });
+ else
+ emitReadable_(stream);
+}
+
+function emitReadable_(stream) {
+ stream.emit('readable');
+}
+
+
+// at this point, the user has presumably seen the 'readable' event,
+// and called read() to consume some data. that may have triggered
+// in turn another _read(n) call, in which case reading = true if
+// it's in progress.
+// However, if we're not ended, or reading, and the length < hwm,
+// then go ahead and try to read some more preemptively.
+function maybeReadMore(stream, state) {
+ if (!state.readingMore) {
+ state.readingMore = true;
+ process.nextTick(function() {
+ maybeReadMore_(stream, state);
+ });
+ }
+}
+
+function maybeReadMore_(stream, state) {
+ var len = state.length;
+ while (!state.reading && !state.flowing && !state.ended &&
+ state.length < state.highWaterMark) {
+ stream.read(0);
+ if (len === state.length)
+ // didn't get any data, stop spinning.
+ break;
+ else
+ len = state.length;
+ }
+ state.readingMore = false;
+}
+
+// abstract method. to be overridden in specific implementation classes.
+// call cb(er, data) where data is <= n in length.
+// for virtual (non-string, non-buffer) streams, "length" is somewhat
+// arbitrary, and perhaps not very meaningful.
+Readable.prototype._read = function(n) {
+ this.emit('error', new Error('not implemented'));
+};
+
+Readable.prototype.pipe = function(dest, pipeOpts) {
+ var src = this;
+ var state = this._readableState;
+
+ switch (state.pipesCount) {
+ case 0:
+ state.pipes = dest;
+ break;
+ case 1:
+ state.pipes = [state.pipes, dest];
+ break;
+ default:
+ state.pipes.push(dest);
+ break;
+ }
+ state.pipesCount += 1;
+
+ var doEnd = (!pipeOpts || pipeOpts.end !== false) &&
+ dest !== process.stdout &&
+ dest !== process.stderr;
+
+ var endFn = doEnd ? onend : cleanup;
+ if (state.endEmitted)
+ process.nextTick(endFn);
+ else
+ src.once('end', endFn);
+
+ dest.on('unpipe', onunpipe);
+ function onunpipe(readable) {
+ if (readable !== src) return;
+ cleanup();
+ }
+
+ function onend() {
+ dest.end();
+ }
+
+ // when the dest drains, it reduces the awaitDrain counter
+ // on the source. This would be more elegant with a .once()
+ // handler in flow(), but adding and removing repeatedly is
+ // too slow.
+ var ondrain = pipeOnDrain(src);
+ dest.on('drain', ondrain);
+
+ function cleanup() {
+ // cleanup event handlers once the pipe is broken
+ dest.removeListener('close', onclose);
+ dest.removeListener('finish', onfinish);
+ dest.removeListener('drain', ondrain);
+ dest.removeListener('error', onerror);
+ dest.removeListener('unpipe', onunpipe);
+ src.removeListener('end', onend);
+ src.removeListener('end', cleanup);
+
+ // if the reader is waiting for a drain event from this
+ // specific writer, then it would cause it to never start
+ // flowing again.
+ // So, if this is awaiting a drain, then we just call it now.
+ // If we don't know, then assume that we are waiting for one.
+ if (!dest._writableState || dest._writableState.needDrain)
+ ondrain();
+ }
+
+ // if the dest has an error, then stop piping into it.
+ // however, don't suppress the throwing behavior for this.
+ function onerror(er) {
+ unpipe();
+ dest.removeListener('error', onerror);
+ if (EE.listenerCount(dest, 'error') === 0)
+ dest.emit('error', er);
+ }
+ // This is a brutally ugly hack to make sure that our error handler
+ // is attached before any userland ones. NEVER DO THIS.
+ if (!dest._events || !dest._events.error)
+ dest.on('error', onerror);
+ else if (isArray(dest._events.error))
+ dest._events.error.unshift(onerror);
+ else
+ dest._events.error = [onerror, dest._events.error];
+
+
+
+ // Both close and finish should trigger unpipe, but only once.
+ function onclose() {
+ dest.removeListener('finish', onfinish);
+ unpipe();
+ }
+ dest.once('close', onclose);
+ function onfinish() {
+ dest.removeListener('close', onclose);
+ unpipe();
+ }
+ dest.once('finish', onfinish);
+
+ function unpipe() {
+ src.unpipe(dest);
+ }
+
+ // tell the dest that it's being piped to
+ dest.emit('pipe', src);
+
+ // start the flow if it hasn't been started already.
+ if (!state.flowing) {
+ // the handler that waits for readable events after all
+ // the data gets sucked out in flow.
+ // This would be easier to follow with a .once() handler
+ // in flow(), but that is too slow.
+ this.on('readable', pipeOnReadable);
+
+ state.flowing = true;
+ process.nextTick(function() {
+ flow(src);
+ });
+ }
+
+ return dest;
+};
+
+function pipeOnDrain(src) {
+ return function() {
+ var dest = this;
+ var state = src._readableState;
+ state.awaitDrain--;
+ if (state.awaitDrain === 0)
+ flow(src);
+ };
+}
+
+function flow(src) {
+ var state = src._readableState;
+ var chunk;
+ state.awaitDrain = 0;
+
+ function write(dest, i, list) {
+ var written = dest.write(chunk);
+ if (false === written) {
+ state.awaitDrain++;
+ }
+ }
+
+ while (state.pipesCount && null !== (chunk = src.read())) {
+
+ if (state.pipesCount === 1)
+ write(state.pipes, 0, null);
+ else
+ forEach(state.pipes, write);
+
+ src.emit('data', chunk);
+
+ // if anyone needs a drain, then we have to wait for that.
+ if (state.awaitDrain > 0)
+ return;
+ }
+
+ // if every destination was unpiped, either before entering this
+ // function, or in the while loop, then stop flowing.
+ //
+ // NB: This is a pretty rare edge case.
+ if (state.pipesCount === 0) {
+ state.flowing = false;
+
+ // if there were data event listeners added, then switch to old mode.
+ if (EE.listenerCount(src, 'data') > 0)
+ emitDataEvents(src);
+ return;
+ }
+
+ // at this point, no one needed a drain, so we just ran out of data
+ // on the next readable event, start it over again.
+ state.ranOut = true;
+}
+
+function pipeOnReadable() {
+ if (this._readableState.ranOut) {
+ this._readableState.ranOut = false;
+ flow(this);
+ }
+}
+
+
+Readable.prototype.unpipe = function(dest) {
+ var state = this._readableState;
+
+ // if we're not piping anywhere, then do nothing.
+ if (state.pipesCount === 0)
+ return this;
+
+ // just one destination. most common case.
+ if (state.pipesCount === 1) {
+ // passed in one, but it's not the right one.
+ if (dest && dest !== state.pipes)
+ return this;
+
+ if (!dest)
+ dest = state.pipes;
+
+ // got a match.
+ state.pipes = null;
+ state.pipesCount = 0;
+ this.removeListener('readable', pipeOnReadable);
+ state.flowing = false;
+ if (dest)
+ dest.emit('unpipe', this);
+ return this;
+ }
+
+ // slow case. multiple pipe destinations.
+
+ if (!dest) {
+ // remove all.
+ var dests = state.pipes;
+ var len = state.pipesCount;
+ state.pipes = null;
+ state.pipesCount = 0;
+ this.removeListener('readable', pipeOnReadable);
+ state.flowing = false;
+
+ for (var i = 0; i < len; i++)
+ dests[i].emit('unpipe', this);
+ return this;
+ }
+
+ // try to find the right one.
+ var i = indexOf(state.pipes, dest);
+ if (i === -1)
+ return this;
+
+ state.pipes.splice(i, 1);
+ state.pipesCount -= 1;
+ if (state.pipesCount === 1)
+ state.pipes = state.pipes[0];
+
+ dest.emit('unpipe', this);
+
+ return this;
+};
+
+// set up data events if they are asked for
+// Ensure readable listeners eventually get something
+Readable.prototype.on = function(ev, fn) {
+ var res = Stream.prototype.on.call(this, ev, fn);
+
+ if (ev === 'data' && !this._readableState.flowing)
+ emitDataEvents(this);
+
+ if (ev === 'readable' && this.readable) {
+ var state = this._readableState;
+ if (!state.readableListening) {
+ state.readableListening = true;
+ state.emittedReadable = false;
+ state.needReadable = true;
+ if (!state.reading) {
+ this.read(0);
+ } else if (state.length) {
+ emitReadable(this, state);
+ }
+ }
+ }
+
+ return res;
+};
+Readable.prototype.addListener = Readable.prototype.on;
+
+// pause() and resume() are remnants of the legacy readable stream API
+// If the user uses them, then switch into old mode.
+Readable.prototype.resume = function() {
+ emitDataEvents(this);
+ this.read(0);
+ this.emit('resume');
+};
+
+Readable.prototype.pause = function() {
+ emitDataEvents(this, true);
+ this.emit('pause');
+};
+
+function emitDataEvents(stream, startPaused) {
+ var state = stream._readableState;
+
+ if (state.flowing) {
+ // https://github.com/isaacs/readable-stream/issues/16
+ throw new Error('Cannot switch to old mode now.');
+ }
+
+ var paused = startPaused || false;
+ var readable = false;
+
+ // convert to an old-style stream.
+ stream.readable = true;
+ stream.pipe = Stream.prototype.pipe;
+ stream.on = stream.addListener = Stream.prototype.on;
+
+ stream.on('readable', function() {
+ readable = true;
+
+ var c;
+ while (!paused && (null !== (c = stream.read())))
+ stream.emit('data', c);
+
+ if (c === null) {
+ readable = false;
+ stream._readableState.needReadable = true;
+ }
+ });
+
+ stream.pause = function() {
+ paused = true;
+ this.emit('pause');
+ };
+
+ stream.resume = function() {
+ paused = false;
+ if (readable)
+ process.nextTick(function() {
+ stream.emit('readable');
+ });
+ else
+ this.read(0);
+ this.emit('resume');
+ };
+
+ // now make it start, just in case it hadn't already.
+ stream.emit('readable');
+}
+
+// wrap an old-style stream as the async data source.
+// This is *not* part of the readable stream interface.
+// It is an ugly unfortunate mess of history.
+Readable.prototype.wrap = function(stream) {
+ var state = this._readableState;
+ var paused = false;
+
+ var self = this;
+ stream.on('end', function() {
+ if (state.decoder && !state.ended) {
+ var chunk = state.decoder.end();
+ if (chunk && chunk.length)
+ self.push(chunk);
+ }
+
+ self.push(null);
+ });
+
+ stream.on('data', function(chunk) {
+ if (state.decoder)
+ chunk = state.decoder.write(chunk);
+ if (!chunk || !state.objectMode && !chunk.length)
+ return;
+
+ var ret = self.push(chunk);
+ if (!ret) {
+ paused = true;
+ stream.pause();
+ }
+ });
+
+ // proxy all the other methods.
+ // important when wrapping filters and duplexes.
+ for (var i in stream) {
+ if (typeof stream[i] === 'function' &&
+ typeof this[i] === 'undefined') {
+ this[i] = function(method) { return function() {
+ return stream[method].apply(stream, arguments);
+ }}(i);
+ }
+ }
+
+ // proxy certain important events.
+ var events = ['error', 'close', 'destroy', 'pause', 'resume'];
+ forEach(events, function(ev) {
+ stream.on(ev, self.emit.bind(self, ev));
+ });
+
+ // when we try to consume some more bytes, simply unpause the
+ // underlying stream.
+ self._read = function(n) {
+ if (paused) {
+ paused = false;
+ stream.resume();
+ }
+ };
+
+ return self;
+};
+
+
+
+// exposed for testing purposes only.
+Readable._fromList = fromList;
+
+// Pluck off n bytes from an array of buffers.
+// Length is the combined lengths of all the buffers in the list.
+function fromList(n, state) {
+ var list = state.buffer;
+ var length = state.length;
+ var stringMode = !!state.decoder;
+ var objectMode = !!state.objectMode;
+ var ret;
+
+ // nothing in the list, definitely empty.
+ if (list.length === 0)
+ return null;
+
+ if (length === 0)
+ ret = null;
+ else if (objectMode)
+ ret = list.shift();
+ else if (!n || n >= length) {
+ // read it all, truncate the array.
+ if (stringMode)
+ ret = list.join('');
+ else
+ ret = Buffer.concat(list, length);
+ list.length = 0;
+ } else {
+ // read just some of it.
+ if (n < list[0].length) {
+ // just take a part of the first list item.
+ // slice is the same for buffers and strings.
+ var buf = list[0];
+ ret = buf.slice(0, n);
+ list[0] = buf.slice(n);
+ } else if (n === list[0].length) {
+ // first list is a perfect match
+ ret = list.shift();
+ } else {
+ // complex case.
+ // we have enough to cover it, but it spans past the first buffer.
+ if (stringMode)
+ ret = '';
+ else
+ ret = new Buffer(n);
+
+ var c = 0;
+ for (var i = 0, l = list.length; i < l && c < n; i++) {
+ var buf = list[0];
+ var cpy = Math.min(n - c, buf.length);
+
+ if (stringMode)
+ ret += buf.slice(0, cpy);
+ else
+ buf.copy(ret, c, 0, cpy);
+
+ if (cpy < buf.length)
+ list[0] = buf.slice(cpy);
+ else
+ list.shift();
+
+ c += cpy;
+ }
+ }
+ }
+
+ return ret;
+}
+
+function endReadable(stream) {
+ var state = stream._readableState;
+
+ // If we get here before consuming all the bytes, then that is a
+ // bug in node. Should never happen.
+ if (state.length > 0)
+ throw new Error('endReadable called on non-empty stream');
+
+ if (!state.endEmitted && state.calledRead) {
+ state.ended = true;
+ process.nextTick(function() {
+ // Check that we didn't get one last unshift.
+ if (!state.endEmitted && state.length === 0) {
+ state.endEmitted = true;
+ stream.readable = false;
+ stream.emit('end');
+ }
+ });
+ }
+}
+
+function forEach (xs, f) {
+ for (var i = 0, l = xs.length; i < l; i++) {
+ f(xs[i], i);
+ }
+}
+
+function indexOf (xs, x) {
+ for (var i = 0, l = xs.length; i < l; i++) {
+ if (xs[i] === x) return i;
+ }
+ return -1;
+}
+
+}).call(this,require("Vms28V"))
+},{"Vms28V":6,"buffer":1,"core-util-is":13,"events":4,"inherits":5,"isarray":14,"stream":"IIQG84","string_decoder/":15}],11:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+
+// a transform stream is a readable/writable stream where you do
+// something with the data. Sometimes it's called a "filter",
+// but that's not a great name for it, since that implies a thing where
+// some bits pass through, and others are simply ignored. (That would
+// be a valid example of a transform, of course.)
+//
+// While the output is causally related to the input, it's not a
+// necessarily symmetric or synchronous transformation. For example,
+// a zlib stream might take multiple plain-text writes(), and then
+// emit a single compressed chunk some time in the future.
+//
+// Here's how this works:
+//
+// The Transform stream has all the aspects of the readable and writable
+// stream classes. When you write(chunk), that calls _write(chunk,cb)
+// internally, and returns false if there's a lot of pending writes
+// buffered up. When you call read(), that calls _read(n) until
+// there's enough pending readable data buffered up.
+//
+// In a transform stream, the written data is placed in a buffer. When
+// _read(n) is called, it transforms the queued up data, calling the
+// buffered _write cb's as it consumes chunks. If consuming a single
+// written chunk would result in multiple output chunks, then the first
+// outputted bit calls the readcb, and subsequent chunks just go into
+// the read buffer, and will cause it to emit 'readable' if necessary.
+//
+// This way, back-pressure is actually determined by the reading side,
+// since _read has to be called to start processing a new chunk. However,
+// a pathological inflate type of transform can cause excessive buffering
+// here. For example, imagine a stream where every byte of input is
+// interpreted as an integer from 0-255, and then results in that many
+// bytes of output. Writing the 4 bytes {ff,ff,ff,ff} would result in
+// 1kb of data being output. In this case, you could write a very small
+// amount of input, and end up with a very large amount of output. In
+// such a pathological inflating mechanism, there'd be no way to tell
+// the system to stop doing the transform. A single 4MB write could
+// cause the system to run out of memory.
+//
+// However, even in such a pathological case, only a single written chunk
+// would be consumed, and then the rest would wait (un-transformed) until
+// the results of the previous transformed chunk were consumed.
+
+module.exports = Transform;
+
+var Duplex = require('./_stream_duplex');
+
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
+
+util.inherits(Transform, Duplex);
+
+
+function TransformState(options, stream) {
+ this.afterTransform = function(er, data) {
+ return afterTransform(stream, er, data);
+ };
+
+ this.needTransform = false;
+ this.transforming = false;
+ this.writecb = null;
+ this.writechunk = null;
+}
+
+function afterTransform(stream, er, data) {
+ var ts = stream._transformState;
+ ts.transforming = false;
+
+ var cb = ts.writecb;
+
+ if (!cb)
+ return stream.emit('error', new Error('no writecb in Transform class'));
+
+ ts.writechunk = null;
+ ts.writecb = null;
+
+ if (data !== null && data !== undefined)
+ stream.push(data);
+
+ if (cb)
+ cb(er);
+
+ var rs = stream._readableState;
+ rs.reading = false;
+ if (rs.needReadable || rs.length < rs.highWaterMark) {
+ stream._read(rs.highWaterMark);
+ }
+}
+
+
+function Transform(options) {
+ if (!(this instanceof Transform))
+ return new Transform(options);
+
+ Duplex.call(this, options);
+
+ var ts = this._transformState = new TransformState(options, this);
+
+ // when the writable side finishes, then flush out anything remaining.
+ var stream = this;
+
+ // start out asking for a readable event once data is transformed.
+ this._readableState.needReadable = true;
+
+ // we have implemented the _read method, and done the other things
+ // that Readable wants before the first _read call, so unset the
+ // sync guard flag.
+ this._readableState.sync = false;
+
+ this.once('finish', function() {
+ if ('function' === typeof this._flush)
+ this._flush(function(er) {
+ done(stream, er);
+ });
+ else
+ done(stream);
+ });
+}
+
+Transform.prototype.push = function(chunk, encoding) {
+ this._transformState.needTransform = false;
+ return Duplex.prototype.push.call(this, chunk, encoding);
+};
+
+// This is the part where you do stuff!
+// override this function in implementation classes.
+// 'chunk' is an input chunk.
+//
+// Call `push(newChunk)` to pass along transformed output
+// to the readable side. You may call 'push' zero or more times.
+//
+// Call `cb(err)` when you are done with this chunk. If you pass
+// an error, then that'll put the hurt on the whole operation. If you
+// never call cb(), then you'll never get another chunk.
+Transform.prototype._transform = function(chunk, encoding, cb) {
+ throw new Error('not implemented');
+};
+
+Transform.prototype._write = function(chunk, encoding, cb) {
+ var ts = this._transformState;
+ ts.writecb = cb;
+ ts.writechunk = chunk;
+ ts.writeencoding = encoding;
+ if (!ts.transforming) {
+ var rs = this._readableState;
+ if (ts.needTransform ||
+ rs.needReadable ||
+ rs.length < rs.highWaterMark)
+ this._read(rs.highWaterMark);
+ }
+};
+
+// Doesn't matter what the args are here.
+// _transform does all the work.
+// That we got here means that the readable side wants more data.
+Transform.prototype._read = function(n) {
+ var ts = this._transformState;
+
+ if (ts.writechunk !== null && ts.writecb && !ts.transforming) {
+ ts.transforming = true;
+ this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
+ } else {
+ // mark that we need a transform, so that any data that comes in
+ // will get processed, now that we've asked for it.
+ ts.needTransform = true;
+ }
+};
+
+
+function done(stream, er) {
+ if (er)
+ return stream.emit('error', er);
+
+ // if there's nothing in the write buffer, then that means
+ // that nothing more will ever be provided
+ var ws = stream._writableState;
+ var rs = stream._readableState;
+ var ts = stream._transformState;
+
+ if (ws.length)
+ throw new Error('calling transform done when ws.length != 0');
+
+ if (ts.transforming)
+ throw new Error('calling transform done when still transforming');
+
+ return stream.push(null);
+}
+
+},{"./_stream_duplex":8,"core-util-is":13,"inherits":5}],12:[function(require,module,exports){
+(function (process){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// A bit simpler than readable streams.
+// Implement an async ._write(chunk, cb), and it'll handle all
+// the drain event emission and buffering.
+
+module.exports = Writable;
+
+/*<replacement>*/
+var Buffer = require('buffer').Buffer;
+/*</replacement>*/
+
+Writable.WritableState = WritableState;
+
+
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
+
+
+var Stream = require('stream');
+
+util.inherits(Writable, Stream);
+
+function WriteReq(chunk, encoding, cb) {
+ this.chunk = chunk;
+ this.encoding = encoding;
+ this.callback = cb;
+}
+
+function WritableState(options, stream) {
+ options = options || {};
+
+ // the point at which write() starts returning false
+ // Note: 0 is a valid value, means that we always return false if
+ // the entire buffer is not flushed immediately on write()
+ var hwm = options.highWaterMark;
+ this.highWaterMark = (hwm || hwm === 0) ? hwm : 16 * 1024;
+
+ // object stream flag to indicate whether or not this stream
+ // contains buffers or objects.
+ this.objectMode = !!options.objectMode;
+
+ // cast to ints.
+ this.highWaterMark = ~~this.highWaterMark;
+
+ this.needDrain = false;
+ // at the start of calling end()
+ this.ending = false;
+ // when end() has been called, and returned
+ this.ended = false;
+ // when 'finish' is emitted
+ this.finished = false;
+
+ // should we decode strings into buffers before passing to _write?
+ // this is here so that some node-core streams can optimize string
+ // handling at a lower level.
+ var noDecode = options.decodeStrings === false;
+ this.decodeStrings = !noDecode;
+
+ // Crypto is kind of old and crusty. Historically, its default string
+ // encoding is 'binary' so we have to make this configurable.
+ // Everything else in the universe uses 'utf8', though.
+ this.defaultEncoding = options.defaultEncoding || 'utf8';
+
+ // not an actual buffer we keep track of, but a measurement
+ // of how much we're waiting to get pushed to some underlying
+ // socket or file.
+ this.length = 0;
+
+ // a flag to see when we're in the middle of a write.
+ this.writing = false;
+
+ // a flag to be able to tell if the onwrite cb is called immediately,
+ // or on a later tick. We set this to true at first, becuase any
+ // actions that shouldn't happen until "later" should generally also
+ // not happen before the first write call.
+ this.sync = true;
+
+ // a flag to know if we're processing previously buffered items, which
+ // may call the _write() callback in the same tick, so that we don't
+ // end up in an overlapped onwrite situation.
+ this.bufferProcessing = false;
+
+ // the callback that's passed to _write(chunk,cb)
+ this.onwrite = function(er) {
+ onwrite(stream, er);
+ };
+
+ // the callback that the user supplies to write(chunk,encoding,cb)
+ this.writecb = null;
+
+ // the amount that is being written when _write is called.
+ this.writelen = 0;
+
+ this.buffer = [];
+
+ // True if the error was already emitted and should not be thrown again
+ this.errorEmitted = false;
+}
+
+function Writable(options) {
+ var Duplex = require('./_stream_duplex');
+
+ // Writable ctor is applied to Duplexes, though they're not
+ // instanceof Writable, they're instanceof Readable.
+ if (!(this instanceof Writable) && !(this instanceof Duplex))
+ return new Writable(options);
+
+ this._writableState = new WritableState(options, this);
+
+ // legacy.
+ this.writable = true;
+
+ Stream.call(this);
+}
+
+// Otherwise people can pipe Writable streams, which is just wrong.
+Writable.prototype.pipe = function() {
+ this.emit('error', new Error('Cannot pipe. Not readable.'));
+};
+
+
+function writeAfterEnd(stream, state, cb) {
+ var er = new Error('write after end');
+ // TODO: defer error events consistently everywhere, not just the cb
+ stream.emit('error', er);
+ process.nextTick(function() {
+ cb(er);
+ });
+}
+
+// If we get something that is not a buffer, string, null, or undefined,
+// and we're not in objectMode, then that's an error.
+// Otherwise stream chunks are all considered to be of length=1, and the
+// watermarks determine how many objects to keep in the buffer, rather than
+// how many bytes or characters.
+function validChunk(stream, state, chunk, cb) {
+ var valid = true;
+ if (!Buffer.isBuffer(chunk) &&
+ 'string' !== typeof chunk &&
+ chunk !== null &&
+ chunk !== undefined &&
+ !state.objectMode) {
+ var er = new TypeError('Invalid non-string/buffer chunk');
+ stream.emit('error', er);
+ process.nextTick(function() {
+ cb(er);
+ });
+ valid = false;
+ }
+ return valid;
+}
+
+Writable.prototype.write = function(chunk, encoding, cb) {
+ var state = this._writableState;
+ var ret = false;
+
+ if (typeof encoding === 'function') {
+ cb = encoding;
+ encoding = null;
+ }
+
+ if (Buffer.isBuffer(chunk))
+ encoding = 'buffer';
+ else if (!encoding)
+ encoding = state.defaultEncoding;
+
+ if (typeof cb !== 'function')
+ cb = function() {};
+
+ if (state.ended)
+ writeAfterEnd(this, state, cb);
+ else if (validChunk(this, state, chunk, cb))
+ ret = writeOrBuffer(this, state, chunk, encoding, cb);
+
+ return ret;
+};
+
+function decodeChunk(state, chunk, encoding) {
+ if (!state.objectMode &&
+ state.decodeStrings !== false &&
+ typeof chunk === 'string') {
+ chunk = new Buffer(chunk, encoding);
+ }
+ return chunk;
+}
+
+// if we're already writing something, then just put this
+// in the queue, and wait our turn. Otherwise, call _write
+// If we return false, then we need a drain event, so set that flag.
+function writeOrBuffer(stream, state, chunk, encoding, cb) {
+ chunk = decodeChunk(state, chunk, encoding);
+ if (Buffer.isBuffer(chunk))
+ encoding = 'buffer';
+ var len = state.objectMode ? 1 : chunk.length;
+
+ state.length += len;
+
+ var ret = state.length < state.highWaterMark;
+ // we must ensure that previous needDrain will not be reset to false.
+ if (!ret)
+ state.needDrain = true;
+
+ if (state.writing)
+ state.buffer.push(new WriteReq(chunk, encoding, cb));
+ else
+ doWrite(stream, state, len, chunk, encoding, cb);
+
+ return ret;
+}
+
+function doWrite(stream, state, len, chunk, encoding, cb) {
+ state.writelen = len;
+ state.writecb = cb;
+ state.writing = true;
+ state.sync = true;
+ stream._write(chunk, encoding, state.onwrite);
+ state.sync = false;
+}
+
+function onwriteError(stream, state, sync, er, cb) {
+ if (sync)
+ process.nextTick(function() {
+ cb(er);
+ });
+ else
+ cb(er);
+
+ stream._writableState.errorEmitted = true;
+ stream.emit('error', er);
+}
+
+function onwriteStateUpdate(state) {
+ state.writing = false;
+ state.writecb = null;
+ state.length -= state.writelen;
+ state.writelen = 0;
+}
+
+function onwrite(stream, er) {
+ var state = stream._writableState;
+ var sync = state.sync;
+ var cb = state.writecb;
+
+ onwriteStateUpdate(state);
+
+ if (er)
+ onwriteError(stream, state, sync, er, cb);
+ else {
+ // Check if we're actually ready to finish, but don't emit yet
+ var finished = needFinish(stream, state);
+
+ if (!finished && !state.bufferProcessing && state.buffer.length)
+ clearBuffer(stream, state);
+
+ if (sync) {
+ process.nextTick(function() {
+ afterWrite(stream, state, finished, cb);
+ });
+ } else {
+ afterWrite(stream, state, finished, cb);
+ }
+ }
+}
+
+function afterWrite(stream, state, finished, cb) {
+ if (!finished)
+ onwriteDrain(stream, state);
+ cb();
+ if (finished)
+ finishMaybe(stream, state);
+}
+
+// Must force callback to be called on nextTick, so that we don't
+// emit 'drain' before the write() consumer gets the 'false' return
+// value, and has a chance to attach a 'drain' listener.
+function onwriteDrain(stream, state) {
+ if (state.length === 0 && state.needDrain) {
+ state.needDrain = false;
+ stream.emit('drain');
+ }
+}
+
+
+// if there's something in the buffer waiting, then process it
+function clearBuffer(stream, state) {
+ state.bufferProcessing = true;
+
+ for (var c = 0; c < state.buffer.length; c++) {
+ var entry = state.buffer[c];
+ var chunk = entry.chunk;
+ var encoding = entry.encoding;
+ var cb = entry.callback;
+ var len = state.objectMode ? 1 : chunk.length;
+
+ doWrite(stream, state, len, chunk, encoding, cb);
+
+ // if we didn't call the onwrite immediately, then
+ // it means that we need to wait until it does.
+ // also, that means that the chunk and cb are currently
+ // being processed, so move the buffer counter past them.
+ if (state.writing) {
+ c++;
+ break;
+ }
+ }
+
+ state.bufferProcessing = false;
+ if (c < state.buffer.length)
+ state.buffer = state.buffer.slice(c);
+ else
+ state.buffer.length = 0;
+}
+
+Writable.prototype._write = function(chunk, encoding, cb) {
+ cb(new Error('not implemented'));
+};
+
+Writable.prototype.end = function(chunk, encoding, cb) {
+ var state = this._writableState;
+
+ if (typeof chunk === 'function') {
+ cb = chunk;
+ chunk = null;
+ encoding = null;
+ } else if (typeof encoding === 'function') {
+ cb = encoding;
+ encoding = null;
+ }
+
+ if (typeof chunk !== 'undefined' && chunk !== null)
+ this.write(chunk, encoding);
+
+ // ignore unnecessary end() calls.
+ if (!state.ending && !state.finished)
+ endWritable(this, state, cb);
+};
+
+
+function needFinish(stream, state) {
+ return (state.ending &&
+ state.length === 0 &&
+ !state.finished &&
+ !state.writing);
+}
+
+function finishMaybe(stream, state) {
+ var need = needFinish(stream, state);
+ if (need) {
+ state.finished = true;
+ stream.emit('finish');
+ }
+ return need;
+}
+
+function endWritable(stream, state, cb) {
+ state.ending = true;
+ finishMaybe(stream, state);
+ if (cb) {
+ if (state.finished)
+ process.nextTick(cb);
+ else
+ stream.once('finish', cb);
+ }
+ state.ended = true;
+}
+
+}).call(this,require("Vms28V"))
+},{"./_stream_duplex":8,"Vms28V":6,"buffer":1,"core-util-is":13,"inherits":5,"stream":"IIQG84"}],13:[function(require,module,exports){
+(function (Buffer){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// NOTE: These type checking functions intentionally don't use `instanceof`
+// because it is fragile and can be easily faked with `Object.create()`.
+function isArray(ar) {
+ return Array.isArray(ar);
+}
+exports.isArray = isArray;
+
+function isBoolean(arg) {
+ return typeof arg === 'boolean';
+}
+exports.isBoolean = isBoolean;
+
+function isNull(arg) {
+ return arg === null;
+}
+exports.isNull = isNull;
+
+function isNullOrUndefined(arg) {
+ return arg == null;
+}
+exports.isNullOrUndefined = isNullOrUndefined;
+
+function isNumber(arg) {
+ return typeof arg === 'number';
+}
+exports.isNumber = isNumber;
+
+function isString(arg) {
+ return typeof arg === 'string';
+}
+exports.isString = isString;
+
+function isSymbol(arg) {
+ return typeof arg === 'symbol';
+}
+exports.isSymbol = isSymbol;
+
+function isUndefined(arg) {
+ return arg === void 0;
+}
+exports.isUndefined = isUndefined;
+
+function isRegExp(re) {
+ return isObject(re) && objectToString(re) === '[object RegExp]';
+}
+exports.isRegExp = isRegExp;
+
+function isObject(arg) {
+ return typeof arg === 'object' && arg !== null;
+}
+exports.isObject = isObject;
+
+function isDate(d) {
+ return isObject(d) && objectToString(d) === '[object Date]';
+}
+exports.isDate = isDate;
+
+function isError(e) {
+ return isObject(e) &&
+ (objectToString(e) === '[object Error]' || e instanceof Error);
+}
+exports.isError = isError;
+
+function isFunction(arg) {
+ return typeof arg === 'function';
+}
+exports.isFunction = isFunction;
+
+function isPrimitive(arg) {
+ return arg === null ||
+ typeof arg === 'boolean' ||
+ typeof arg === 'number' ||
+ typeof arg === 'string' ||
+ typeof arg === 'symbol' || // ES6 symbol
+ typeof arg === 'undefined';
+}
+exports.isPrimitive = isPrimitive;
+
+function isBuffer(arg) {
+ return Buffer.isBuffer(arg);
+}
+exports.isBuffer = isBuffer;
+
+function objectToString(o) {
+ return Object.prototype.toString.call(o);
+}
+}).call(this,require("buffer").Buffer)
+},{"buffer":1}],14:[function(require,module,exports){
+module.exports = Array.isArray || function (arr) {
+ return Object.prototype.toString.call(arr) == '[object Array]';
+};
+
+},{}],15:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+var Buffer = require('buffer').Buffer;
+
+var isBufferEncoding = Buffer.isEncoding
+ || function(encoding) {
+ switch (encoding && encoding.toLowerCase()) {
+ case 'hex': case 'utf8': case 'utf-8': case 'ascii': case 'binary': case 'base64': case 'ucs2': case 'ucs-2': case 'utf16le': case 'utf-16le': case 'raw': return true;
+ default: return false;
+ }
+ }
+
+
+function assertEncoding(encoding) {
+ if (encoding && !isBufferEncoding(encoding)) {
+ throw new Error('Unknown encoding: ' + encoding);
+ }
+}
+
+var StringDecoder = exports.StringDecoder = function(encoding) {
+ this.encoding = (encoding || 'utf8').toLowerCase().replace(/[-_]/, '');
+ assertEncoding(encoding);
+ switch (this.encoding) {
+ case 'utf8':
+ // CESU-8 represents each of Surrogate Pair by 3-bytes
+ this.surrogateSize = 3;
+ break;
+ case 'ucs2':
+ case 'utf16le':
+ // UTF-16 represents each of Surrogate Pair by 2-bytes
+ this.surrogateSize = 2;
+ this.detectIncompleteChar = utf16DetectIncompleteChar;
+ break;
+ case 'base64':
+ // Base-64 stores 3 bytes in 4 chars, and pads the remainder.
+ this.surrogateSize = 3;
+ this.detectIncompleteChar = base64DetectIncompleteChar;
+ break;
+ default:
+ this.write = passThroughWrite;
+ return;
+ }
+
+ this.charBuffer = new Buffer(6);
+ this.charReceived = 0;
+ this.charLength = 0;
+};
+
+
+StringDecoder.prototype.write = function(buffer) {
+ var charStr = '';
+ var offset = 0;
+
+ // if our last write ended with an incomplete multibyte character
+ while (this.charLength) {
+ // determine how many remaining bytes this buffer has to offer for this char
+ var i = (buffer.length >= this.charLength - this.charReceived) ?
+ this.charLength - this.charReceived :
+ buffer.length;
+
+ // add the new bytes to the char buffer
+ buffer.copy(this.charBuffer, this.charReceived, offset, i);
+ this.charReceived += (i - offset);
+ offset = i;
+
+ if (this.charReceived < this.charLength) {
+ // still not enough chars in this buffer? wait for more ...
+ return '';
+ }
+
+ // get the character that was split
+ charStr = this.charBuffer.slice(0, this.charLength).toString(this.encoding);
+
+ // lead surrogate (D800-DBFF) is also the incomplete character
+ var charCode = charStr.charCodeAt(charStr.length - 1);
+ if (charCode >= 0xD800 && charCode <= 0xDBFF) {
+ this.charLength += this.surrogateSize;
+ charStr = '';
+ continue;
+ }
+ this.charReceived = this.charLength = 0;
+
+ // if there are no more bytes in this buffer, just emit our char
+ if (i == buffer.length) return charStr;
+
+ // otherwise cut off the characters end from the beginning of this buffer
+ buffer = buffer.slice(i, buffer.length);
+ break;
+ }
+
+ var lenIncomplete = this.detectIncompleteChar(buffer);
+
+ var end = buffer.length;
+ if (this.charLength) {
+ // buffer the incomplete character bytes we got
+ buffer.copy(this.charBuffer, 0, buffer.length - lenIncomplete, end);
+ this.charReceived = lenIncomplete;
+ end -= lenIncomplete;
+ }
+
+ charStr += buffer.toString(this.encoding, 0, end);
+
+ var end = charStr.length - 1;
+ var charCode = charStr.charCodeAt(end);
+ // lead surrogate (D800-DBFF) is also the incomplete character
+ if (charCode >= 0xD800 && charCode <= 0xDBFF) {
+ var size = this.surrogateSize;
+ this.charLength += size;
+ this.charReceived += size;
+ this.charBuffer.copy(this.charBuffer, size, 0, size);
+ this.charBuffer.write(charStr.charAt(charStr.length - 1), this.encoding);
+ return charStr.substring(0, end);
+ }
+
+ // or just emit the charStr
+ return charStr;
+};
+
+StringDecoder.prototype.detectIncompleteChar = function(buffer) {
+ // determine how many bytes we have to check at the end of this buffer
+ var i = (buffer.length >= 3) ? 3 : buffer.length;
+
+ // Figure out if one of the last i bytes of our buffer announces an
+ // incomplete char.
+ for (; i > 0; i--) {
+ var c = buffer[buffer.length - i];
+
+ // See http://en.wikipedia.org/wiki/UTF-8#Description
+
+ // 110XXXXX
+ if (i == 1 && c >> 5 == 0x06) {
+ this.charLength = 2;
+ break;
+ }
+
+ // 1110XXXX
+ if (i <= 2 && c >> 4 == 0x0E) {
+ this.charLength = 3;
+ break;
+ }
+
+ // 11110XXX
+ if (i <= 3 && c >> 3 == 0x1E) {
+ this.charLength = 4;
+ break;
+ }
+ }
+
+ return i;
+};
+
+StringDecoder.prototype.end = function(buffer) {
+ var res = '';
+ if (buffer && buffer.length)
+ res = this.write(buffer);
+
+ if (this.charReceived) {
+ var cr = this.charReceived;
+ var buf = this.charBuffer;
+ var enc = this.encoding;
+ res += buf.slice(0, cr).toString(enc);
+ }
+
+ return res;
+};
+
+function passThroughWrite(buffer) {
+ return buffer.toString(this.encoding);
+}
+
+function utf16DetectIncompleteChar(buffer) {
+ var incomplete = this.charReceived = buffer.length % 2;
+ this.charLength = incomplete ? 2 : 0;
+ return incomplete;
+}
+
+function base64DetectIncompleteChar(buffer) {
+ var incomplete = this.charReceived = buffer.length % 3;
+ this.charLength = incomplete ? 3 : 0;
+ return incomplete;
+}
+
+},{"buffer":1}],16:[function(require,module,exports){
+module.exports = require("./lib/_stream_passthrough.js")
+
+},{"./lib/_stream_passthrough.js":9}],17:[function(require,module,exports){
+exports = module.exports = require('./lib/_stream_readable.js');
+exports.Readable = exports;
+exports.Writable = require('./lib/_stream_writable.js');
+exports.Duplex = require('./lib/_stream_duplex.js');
+exports.Transform = require('./lib/_stream_transform.js');
+exports.PassThrough = require('./lib/_stream_passthrough.js');
+
+},{"./lib/_stream_duplex.js":8,"./lib/_stream_passthrough.js":9,"./lib/_stream_readable.js":10,"./lib/_stream_transform.js":11,"./lib/_stream_writable.js":12}],18:[function(require,module,exports){
+module.exports = require("./lib/_stream_transform.js")
+
+},{"./lib/_stream_transform.js":11}],19:[function(require,module,exports){
+module.exports = require("./lib/_stream_writable.js")
+
+},{"./lib/_stream_writable.js":12}],"IIQG84":[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+module.exports = Stream;
+
+var EE = require('events').EventEmitter;
+var inherits = require('inherits');
+
+inherits(Stream, EE);
+Stream.Readable = require('readable-stream/readable.js');
+Stream.Writable = require('readable-stream/writable.js');
+Stream.Duplex = require('readable-stream/duplex.js');
+Stream.Transform = require('readable-stream/transform.js');
+Stream.PassThrough = require('readable-stream/passthrough.js');
+
+// Backwards-compat with node 0.4.x
+Stream.Stream = Stream;
+
+
+
+// old-style streams. Note that the pipe method (the only relevant
+// part of this class) is overridden in the Readable class.
+
+function Stream() {
+ EE.call(this);
+}
+
+Stream.prototype.pipe = function(dest, options) {
+ var source = this;
+
+ function ondata(chunk) {
+ if (dest.writable) {
+ if (false === dest.write(chunk) && source.pause) {
+ source.pause();
+ }
+ }
+ }
+
+ source.on('data', ondata);
+
+ function ondrain() {
+ if (source.readable && source.resume) {
+ source.resume();
+ }
+ }
+
+ dest.on('drain', ondrain);
+
+ // If the 'end' option is not supplied, dest.end() will be called when
+ // source gets the 'end' or 'close' events. Only dest.end() once.
+ if (!dest._isStdio && (!options || options.end !== false)) {
+ source.on('end', onend);
+ source.on('close', onclose);
+ }
+
+ var didOnEnd = false;
+ function onend() {
+ if (didOnEnd) return;
+ didOnEnd = true;
+
+ dest.end();
+ }
+
+
+ function onclose() {
+ if (didOnEnd) return;
+ didOnEnd = true;
+
+ if (typeof dest.destroy === 'function') dest.destroy();
+ }
+
+ // don't leave dangling pipes when there are errors.
+ function onerror(er) {
+ cleanup();
+ if (EE.listenerCount(this, 'error') === 0) {
+ throw er; // Unhandled stream error in pipe.
+ }
+ }
+
+ source.on('error', onerror);
+ dest.on('error', onerror);
+
+ // remove all the event listeners that were added.
+ function cleanup() {
+ source.removeListener('data', ondata);
+ dest.removeListener('drain', ondrain);
+
+ source.removeListener('end', onend);
+ source.removeListener('close', onclose);
+
+ source.removeListener('error', onerror);
+ dest.removeListener('error', onerror);
+
+ source.removeListener('end', cleanup);
+ source.removeListener('close', cleanup);
+
+ dest.removeListener('close', cleanup);
+ }
+
+ source.on('end', cleanup);
+ source.on('close', cleanup);
+
+ dest.on('close', cleanup);
+
+ dest.emit('pipe', source);
+
+ // Allow for unix-like usage: A.pipe(B).pipe(C)
+ return dest;
+};
+
+},{"events":4,"inherits":5,"readable-stream/duplex.js":7,"readable-stream/passthrough.js":16,"readable-stream/readable.js":17,"readable-stream/transform.js":18,"readable-stream/writable.js":19}],"stream":[function(require,module,exports){
+module.exports=require('IIQG84');
+},{}]},{},[])
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/libs/vendor/polymer/platform/AUTHORS b/examples/pipetobrowser/browser/libs/vendor/polymer/platform/AUTHORS
deleted file mode 100644
index 0617765..0000000
--- a/examples/pipetobrowser/browser/libs/vendor/polymer/platform/AUTHORS
+++ /dev/null
@@ -1,9 +0,0 @@
-# Names should be added to this file with this pattern:
-#
-# For individuals:
-# Name <email address>
-#
-# For organizations:
-# Organization <fnmatch pattern>
-#
-Google Inc. <*@google.com>
diff --git a/examples/pipetobrowser/browser/libs/vendor/polymer/platform/CONTRIBUTING.md b/examples/pipetobrowser/browser/libs/vendor/polymer/platform/CONTRIBUTING.md
deleted file mode 100644
index 1de2f34..0000000
--- a/examples/pipetobrowser/browser/libs/vendor/polymer/platform/CONTRIBUTING.md
+++ /dev/null
@@ -1,73 +0,0 @@
-# Contributing
-
-Want to contribute to Polymer? Great!
-
-We are more than happy to accept external contributions to the project in the form of [feedback](https://groups.google.com/forum/?fromgroups=#!forum/polymer-dev), [bug reports](../../issues), and pull requests.
-
-## Contributor License Agreement
-
-Before we can accept patches, there's a quick web form you need to fill out.
-
-- If you're contributing as an individual (e.g. you own the intellectual property), fill out [this form](http://code.google.com/legal/individual-cla-v1.0.html).
-- If you're contributing under a company, fill out [this form](http://code.google.com/legal/corporate-cla-v1.0.html) instead.
-
-This CLA asserts that contributions are owned by you and that we can license all work under our [license](LICENSE).
-
-Other projects require a similar agreement: jQuery, Firefox, Apache, Node, and many more.
-
-[More about CLAs](https://www.google.com/search?q=Contributor%20License%20Agreement)
-
-## Initial setup
-
-Here's an easy guide that should get you up and running:
-
-1. Setup Grunt: `sudo npm install -g grunt-cli`
-1. Fork the project on github and pull down your copy.
- > replace the {{ username }} with your username and {{ repository }} with the repository name
-
- git clone git@github.com:{{ username }}/{{ repository }}.git --recursive
-
- Note the `--recursive`. This is necessary for submodules to initialize properly. If you don't do a recursive clone, you'll have to init them manually:
-
- git submodule init
- git submodule update
-
- Download and run the `pull-all.sh` script to install the sibling dependencies.
-
- git clone git://github.com/Polymer/tools.git && tools/bin/pull-all.sh
-
-1. Test your change
- > in the repo you've made changes to, run the tests:
-
- cd $REPO
- npm install
- grunt test
-
-1. Commit your code and make a pull request.
-
-That's it for the one time setup. Now you're ready to make a change.
-
-## Submitting a pull request
-
-We iterate fast! To avoid potential merge conflicts, it's a good idea to pull from the main project before making a change and submitting a pull request. The easiest way to do this is setup a remote called `upstream` and do a pull before working on a change:
-
- git remote add upstream git://github.com/Polymer/{{ repository }}.git
-
-Then before making a change, do a pull from the upstream `master` branch:
-
- git pull upstream master
-
-To make life easier, add a "pull upstream" alias in your `.gitconfig`:
-
- [alias]
- pu = !"git fetch origin -v; git fetch upstream -v; git merge upstream/master"
-
-That will pull in changes from your forked repo, the main (upstream) repo, and merge the two. Then it's just a matter of running `git pu` before a change and pushing to your repo:
-
- git checkout master
- git pu
- # make change
- git commit -a -m 'Awesome things.'
- git push
-
-Lastly, don't forget to submit the pull request.
diff --git a/examples/pipetobrowser/browser/libs/vendor/polymer/platform/LICENSE b/examples/pipetobrowser/browser/libs/vendor/polymer/platform/LICENSE
deleted file mode 100644
index 92d60b0..0000000
--- a/examples/pipetobrowser/browser/libs/vendor/polymer/platform/LICENSE
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2012 The Polymer Authors. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/examples/pipetobrowser/browser/libs/vendor/polymer/platform/PATENTS b/examples/pipetobrowser/browser/libs/vendor/polymer/platform/PATENTS
deleted file mode 100644
index e120963..0000000
--- a/examples/pipetobrowser/browser/libs/vendor/polymer/platform/PATENTS
+++ /dev/null
@@ -1,23 +0,0 @@
-Additional IP Rights Grant (Patents)
-
-"This implementation" means the copyrightable works distributed by
-Google as part of the Polymer project.
-
-Google hereby grants to You a perpetual, worldwide, non-exclusive,
-no-charge, royalty-free, irrevocable (except as stated in this section)
-patent license to make, have made, use, offer to sell, sell, import,
-transfer and otherwise run, modify and propagate the contents of this
-implementation of Polymer, where such license applies only to those
-patent claims, both currently owned or controlled by Google and acquired
-in the future, licensable by Google that are necessarily infringed by
-this implementation of Polymer. This grant does not include claims
-that would be infringed only as a consequence of further modification of
-this implementation. If you or your agent or exclusive licensee
-institute or order or agree to the institution of patent litigation
-against any entity (including a cross-claim or counterclaim in a
-lawsuit) alleging that this implementation of Polymer or any code
-incorporated within this implementation of Polymer constitutes
-direct or contributory patent infringement, or inducement of patent
-infringement, then any patent rights granted to you under this License
-for this implementation of Polymer shall terminate as of the date
-such litigation is filed.
diff --git a/examples/pipetobrowser/browser/libs/vendor/polymer/platform/README.md b/examples/pipetobrowser/browser/libs/vendor/polymer/platform/README.md
deleted file mode 100644
index 65b661e..0000000
--- a/examples/pipetobrowser/browser/libs/vendor/polymer/platform/README.md
+++ /dev/null
@@ -1,6 +0,0 @@
-Platform
-========
-
-Aggregated polyfills the Polymer platform.
-
-[](https://github.com/igrigorik/ga-beacon)
diff --git a/examples/pipetobrowser/browser/libs/vendor/polymer/platform/bower.json b/examples/pipetobrowser/browser/libs/vendor/polymer/platform/bower.json
deleted file mode 100644
index b8bcbb5..0000000
--- a/examples/pipetobrowser/browser/libs/vendor/polymer/platform/bower.json
+++ /dev/null
@@ -1,17 +0,0 @@
-{
- "name": "platform",
- "main": "platform.js",
- "homepage": "https://github.com/Polymer/platform",
- "authors": [
- "The Polymer Authors"
- ],
- "description": "Integrate platform polyfills: load, build, test",
- "keywords": [
- "polymer",
- "web",
- "components"
- ],
- "license": "BSD",
- "private": true,
- "version": "0.2.3"
-}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/libs/vendor/polymer/platform/build.log b/examples/pipetobrowser/browser/libs/vendor/polymer/platform/build.log
deleted file mode 100644
index ea9e9a9..0000000
--- a/examples/pipetobrowser/browser/libs/vendor/polymer/platform/build.log
+++ /dev/null
@@ -1,40 +0,0 @@
-BUILD LOG
----------
-Build Time: 2014-04-18T13:25:05
-
-NODEJS INFORMATION
-==================
-nodejs: v0.10.26
-grunt: 0.4.4
-grunt-audit: 0.0.3
-grunt-concat-sourcemap: 0.4.1
-grunt-contrib-concat: 0.4.0
-grunt-contrib-uglify: 0.4.0
-grunt-contrib-yuidoc: 0.5.2
-grunt-karma: 0.8.2
-karma: 0.12.2
-chai: 1.9.1
-karma-chrome-launcher: 0.0.2
-karma-mocha: 0.1.3
-karma-ie-launcher: 0.1.5
-karma-crbot-reporter: 0.0.4
-karma-script-launcher: 0.1.0
-mocha: 1.18.2
-karma-safari-launcher: 0.1.1
-karma-firefox-launcher: 0.1.3
-Platform: 0.2.3
-
-REPO REVISIONS
-==============
-CustomElements: 9b997ca97533147f5f17bd666c06e5fa1a13219e
-HTMLImports: 1c796ecc75d8895f50e65160c53f00a875cb9d2b
-NodeBind: c47bc1b40d1cf0123b29620820a7111471e83ff3
-ShadowDOM: ea4371633cd54dc8f65245d3c65268028bc3e2aa
-TemplateBinding: 1cee027fe67680c93ff2b6b070d32708226f6a83
-WeakMap: a0947a9a0f58f5733f464755c3b86de624b00a5d
-observe-js: c57f0e04f857fee6889468d959ab8233df1d5b31
-platform-dev: c90023a27c38f0e62123e07bdc0639b5336396ee
-
-BUILD HASHES
-============
-build/platform.js: 1238c0a208ca35d679efbf22cd0ad1d1b266464d
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/libs/vendor/polymer/platform/platform.js b/examples/pipetobrowser/browser/libs/vendor/polymer/platform/platform.js
deleted file mode 100644
index 8448813..0000000
--- a/examples/pipetobrowser/browser/libs/vendor/polymer/platform/platform.js
+++ /dev/null
@@ -1,17 +0,0 @@
-/**
- * @license
- * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
- * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
- * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
- * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
- * Code distributed by Google as part of the polymer project is also
- * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
- */
-// @version: 0.2.3
-
-window.Platform=window.Platform||{},window.logFlags=window.logFlags||{},function(a){var b=a.flags||{};location.search.slice(1).split("&").forEach(function(a){a=a.split("="),a[0]&&(b[a[0]]=a[1]||!0)});var c=document.currentScript||document.querySelector('script[src*="platform.js"]');if(c)for(var d,e=c.attributes,f=0;f<e.length;f++)d=e[f],"src"!==d.name&&(b[d.name]=d.value||!0);b.log&&b.log.split(",").forEach(function(a){window.logFlags[a]=!0}),b.shadow=b.shadow||b.shadowdom||b.polyfill,b.shadow="native"===b.shadow?!1:b.shadow||!HTMLElement.prototype.createShadowRoot,b.shadow&&document.querySelectorAll("script").length>1&&console.warn("platform.js is not the first script on the page. 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* Copyright (c) 2014 The Polymer Project Authors. All rights reserved.\n * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt\n * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt\n * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt\n * Code distributed by Google as part of the polymer project is also\n * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt\n */\n\nwindow.Platform = window.Platform || {};\n// prepopulate window.logFlags if necessary\nwindow.logFlags = window.logFlags || {};\n// process flags\n(function(scope){\n // import\n var flags = scope.flags || {};\n // populate flags from location\n location.search.slice(1).split('&').forEach(function(o) {\n o = o.split('=');\n o[0] && (flags[o[0]] = o[1] || true);\n });\n var entryPoint = document.currentScript ||\n document.querySelector('script[src*=\"platform.js\"]');\n if (entryPoint) {\n var a = entryPoint.attributes;\n for (var i = 0, n; i < a.length; i++) {\n n = a[i];\n if (n.name !== 'src') {\n flags[n.name] = n.value || true;\n }\n }\n }\n if (flags.log) {\n flags.log.split(',').forEach(function(f) {\n window.logFlags[f] = true;\n });\n }\n // If any of these flags match 'native', then force native ShadowDOM; any\n // other truthy value, or failure to detect native\n // ShadowDOM, results in polyfill\n flags.shadow = flags.shadow || flags.shadowdom || flags.polyfill;\n if (flags.shadow === 'native') {\n flags.shadow = false;\n } else {\n flags.shadow = flags.shadow || !HTMLElement.prototype.createShadowRoot;\n }\n\n if (flags.shadow && document.querySelectorAll('script').length > 1) {\n console.warn('platform.js is not the first script on the page. ' +\n 'See http://www.polymer-project.org/docs/start/platform.html#setup ' +\n 'for details.');\n }\n\n // CustomElements polyfill flag\n if (flags.register) {\n window.CustomElements = window.CustomElements || {flags: {}};\n window.CustomElements.flags.register = flags.register;\n }\n\n if (flags.imports) {\n window.HTMLImports = window.HTMLImports || {flags: {}};\n window.HTMLImports.flags.imports = flags.imports;\n }\n\n // export\n scope.flags = flags;\n})(Platform);\n","/*\n * Copyright 2012 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nif (typeof WeakMap === 'undefined') {\n (function() {\n var defineProperty = Object.defineProperty;\n var counter = Date.now() % 1e9;\n\n var WeakMap = function() {\n this.name = '__st' + (Math.random() * 1e9 >>> 0) + (counter++ + '__');\n };\n\n WeakMap.prototype = {\n set: function(key, value) {\n var entry = key[this.name];\n if (entry && entry[0] === key)\n entry[1] = value;\n else\n defineProperty(key, this.name, {value: [key, value], writable: true});\n },\n get: function(key) {\n var entry;\n return (entry = key[this.name]) && entry[0] === key ?\n entry[1] : undefined;\n },\n delete: function(key) {\n this.set(key, undefined);\n }\n };\n\n window.WeakMap = WeakMap;\n })();\n}\n","// Copyright 2012 Google Inc.\n//\n// Licensed under the Apache License, Version 2.0 (the \"License\");\n// you may not use this file except in compliance with the License.\n// You may obtain a copy of the License at\n//\n// http://www.apache.org/licenses/LICENSE-2.0\n//\n// Unless required by applicable law or agreed to in writing, software\n// distributed under the License is distributed on an \"AS IS\" BASIS,\n// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n// See the License for the specific language governing permissions and\n// limitations under the License.\n\n(function(global) {\n 'use strict';\n\n // Detect and do basic sanity checking on Object/Array.observe.\n function detectObjectObserve() {\n if (typeof Object.observe !== 'function' ||\n typeof Array.observe !== 'function') {\n return false;\n }\n\n var records = [];\n\n function callback(recs) {\n records = recs;\n }\n\n var test = {};\n var arr = [];\n Object.observe(test, callback);\n Array.observe(arr, callback);\n test.id = 1;\n test.id = 2;\n delete test.id;\n arr.push(1, 2);\n arr.length = 0;\n\n Object.deliverChangeRecords(callback);\n if (records.length !== 5)\n return false;\n\n if (records[0].type != 'add' ||\n records[1].type != 'update' ||\n records[2].type != 'delete' ||\n records[3].type != 'splice' ||\n records[4].type != 'splice') {\n return false;\n }\n\n Object.unobserve(test, callback);\n Array.unobserve(arr, callback);\n\n return true;\n }\n\n var hasObserve = detectObjectObserve();\n\n function detectEval() {\n // don't test for eval if document has CSP securityPolicy object and we can see that\n // eval is not supported. This avoids an error message in console even when the exception\n // is caught\n if (global.document &&\n 'securityPolicy' in global.document &&\n !global.document.securityPolicy.allowsEval) {\n return false;\n }\n\n // Don't test for eval if we're running in a Chrome App environment.\n // We check for APIs set that only exist in a Chrome App context.\n if (typeof chrome !== 'undefined' && chrome.app && chrome.app.runtime) {\n return false;\n }\n\n try {\n var f = new Function('', 'return true;');\n return f();\n } catch (ex) {\n return false;\n }\n }\n\n var hasEval = detectEval();\n\n function isIndex(s) {\n return +s === s >>> 0;\n }\n\n function toNumber(s) {\n return +s;\n }\n\n function isObject(obj) {\n return obj === Object(obj);\n }\n\n var numberIsNaN = global.Number.isNaN || function isNaN(value) {\n return typeof value === 'number' && global.isNaN(value);\n }\n\n function areSameValue(left, right) {\n if (left === right)\n return left !== 0 || 1 / left === 1 / right;\n if (numberIsNaN(left) && numberIsNaN(right))\n return true;\n\n return left !== left && right !== right;\n }\n\n var createObject = ('__proto__' in {}) ?\n function(obj) { return obj; } :\n function(obj) {\n var proto = obj.__proto__;\n if (!proto)\n return obj;\n var newObject = Object.create(proto);\n Object.getOwnPropertyNames(obj).forEach(function(name) {\n Object.defineProperty(newObject, name,\n Object.getOwnPropertyDescriptor(obj, name));\n });\n return newObject;\n };\n\n var identStart = '[\\$_a-zA-Z]';\n var identPart = '[\\$_a-zA-Z0-9]';\n var ident = identStart + '+' + identPart + '*';\n var elementIndex = '(?:[0-9]|[1-9]+[0-9]+)';\n var identOrElementIndex = '(?:' + ident + '|' + elementIndex + ')';\n var path = '(?:' + identOrElementIndex + ')(?:\\\\s*\\\\.\\\\s*' + identOrElementIndex + ')*';\n var pathRegExp = new RegExp('^' + path + '$');\n\n function isPathValid(s) {\n if (typeof s != 'string')\n return false;\n s = s.trim();\n\n if (s == '')\n return true;\n\n if (s[0] == '.')\n return false;\n\n return pathRegExp.test(s);\n }\n\n var constructorIsPrivate = {};\n\n function Path(s, privateToken) {\n if (privateToken !== constructorIsPrivate)\n throw Error('Use Path.get to retrieve path objects');\n\n if (s.trim() == '')\n return this;\n\n if (isIndex(s)) {\n this.push(s);\n return this;\n }\n\n s.split(/\\s*\\.\\s*/).filter(function(part) {\n return part;\n }).forEach(function(part) {\n this.push(part);\n }, this);\n\n if (hasEval && this.length) {\n this.getValueFrom = this.compiledGetValueFromFn();\n }\n }\n\n // TODO(rafaelw): Make simple LRU cache\n var pathCache = {};\n\n function getPath(pathString) {\n if (pathString instanceof Path)\n return pathString;\n\n if (pathString == null)\n pathString = '';\n\n if (typeof pathString !== 'string')\n pathString = String(pathString);\n\n var path = pathCache[pathString];\n if (path)\n return path;\n if (!isPathValid(pathString))\n return invalidPath;\n var path = new Path(pathString, constructorIsPrivate);\n pathCache[pathString] = path;\n return path;\n }\n\n Path.get = getPath;\n\n Path.prototype = createObject({\n __proto__: [],\n valid: true,\n\n toString: function() {\n return this.join('.');\n },\n\n getValueFrom: function(obj, directObserver) {\n for (var i = 0; i < this.length; i++) {\n if (obj == null)\n return;\n obj = obj[this[i]];\n }\n return obj;\n },\n\n iterateObjects: function(obj, observe) {\n for (var i = 0; i < this.length; i++) {\n if (i)\n obj = obj[this[i - 1]];\n if (!isObject(obj))\n return;\n observe(obj, this[0]);\n }\n },\n\n compiledGetValueFromFn: function() {\n var accessors = this.map(function(ident) {\n return isIndex(ident) ? '[\"' + ident + '\"]' : '.' + ident;\n });\n\n var str = '';\n var pathString = 'obj';\n str += 'if (obj != null';\n var i = 0;\n for (; i < (this.length - 1); i++) {\n var ident = this[i];\n pathString += accessors[i];\n str += ' &&\\n ' + pathString + ' != null';\n }\n str += ')\\n';\n\n pathString += accessors[i];\n\n str += ' return ' + pathString + ';\\nelse\\n return undefined;';\n return new Function('obj', str);\n },\n\n setValueFrom: function(obj, value) {\n if (!this.length)\n return false;\n\n for (var i = 0; i < this.length - 1; i++) {\n if (!isObject(obj))\n return false;\n obj = obj[this[i]];\n }\n\n if (!isObject(obj))\n return false;\n\n obj[this[i]] = value;\n return true;\n }\n });\n\n var invalidPath = new Path('', constructorIsPrivate);\n invalidPath.valid = false;\n invalidPath.getValueFrom = invalidPath.setValueFrom = function() {};\n\n var MAX_DIRTY_CHECK_CYCLES = 1000;\n\n function dirtyCheck(observer) {\n var cycles = 0;\n while (cycles < MAX_DIRTY_CHECK_CYCLES && observer.check_()) {\n cycles++;\n }\n if (global.testingExposeCycleCount)\n global.dirtyCheckCycleCount = cycles;\n\n return cycles > 0;\n }\n\n function objectIsEmpty(object) {\n for (var prop in object)\n return false;\n return true;\n }\n\n function diffIsEmpty(diff) {\n return objectIsEmpty(diff.added) &&\n objectIsEmpty(diff.removed) &&\n objectIsEmpty(diff.changed);\n }\n\n function diffObjectFromOldObject(object, oldObject) {\n var added = {};\n var removed = {};\n var changed = {};\n\n for (var prop in oldObject) {\n var newValue = object[prop];\n\n if (newValue !== undefined && newValue === oldObject[prop])\n continue;\n\n if (!(prop in object)) {\n removed[prop] = undefined;\n continue;\n }\n\n if (newValue !== oldObject[prop])\n changed[prop] = newValue;\n }\n\n for (var prop in object) {\n if (prop in oldObject)\n continue;\n\n added[prop] = object[prop];\n }\n\n if (Array.isArray(object) && object.length !== oldObject.length)\n changed.length = object.length;\n\n return {\n added: added,\n removed: removed,\n changed: changed\n };\n }\n\n var eomTasks = [];\n function runEOMTasks() {\n if (!eomTasks.length)\n return false;\n\n for (var i = 0; i < eomTasks.length; i++) {\n eomTasks[i]();\n }\n eomTasks.length = 0;\n return true;\n }\n\n var runEOM = hasObserve ? (function(){\n var eomObj = { pingPong: true };\n var eomRunScheduled = false;\n\n Object.observe(eomObj, function() {\n runEOMTasks();\n eomRunScheduled = false;\n });\n\n return function(fn) {\n eomTasks.push(fn);\n if (!eomRunScheduled) {\n eomRunScheduled = true;\n eomObj.pingPong = !eomObj.pingPong;\n }\n };\n })() :\n (function() {\n return function(fn) {\n eomTasks.push(fn);\n };\n })();\n\n var observedObjectCache = [];\n\n function newObservedObject() {\n var observer;\n var object;\n var discardRecords = false;\n var first = true;\n\n function callback(records) {\n if (observer && observer.state_ === OPENED && !discardRecords)\n observer.check_(records);\n }\n\n return {\n open: function(obs) {\n if (observer)\n throw Error('ObservedObject in use');\n\n if (!first)\n Object.deliverChangeRecords(callback);\n\n observer = obs;\n first = false;\n },\n observe: function(obj, arrayObserve) {\n object = obj;\n if (arrayObserve)\n Array.observe(object, callback);\n else\n Object.observe(object, callback);\n },\n deliver: function(discard) {\n discardRecords = discard;\n Object.deliverChangeRecords(callback);\n discardRecords = false;\n },\n close: function() {\n observer = undefined;\n Object.unobserve(object, callback);\n observedObjectCache.push(this);\n }\n };\n }\n\n /*\n * The observedSet abstraction is a perf optimization which reduces the total\n * number of Object.observe observations of a set of objects. The idea is that\n * groups of Observers will have some object dependencies in common and this\n * observed set ensures that each object in the transitive closure of\n * dependencies is only observed once. The observedSet acts as a write barrier\n * such that whenever any change comes through, all Observers are checked for\n * changed values.\n *\n * Note that this optimization is explicitly moving work from setup-time to\n * change-time.\n *\n * TODO(rafaelw): Implement \"garbage collection\". In order to move work off\n * the critical path, when Observers are closed, their observed objects are\n * not Object.unobserve(d). As a result, it's possible that if the observedSet\n * is kept open, but some Observers have been closed, it could cause \"leaks\"\n * (prevent otherwise collectable objects from being collected). At some\n * point, we should implement incremental \"gc\" which keeps a list of\n * observedSets which may need clean-up and does small amounts of cleanup on a\n * timeout until all is clean.\n */\n\n function getObservedObject(observer, object, arrayObserve) {\n var dir = observedObjectCache.pop() || newObservedObject();\n dir.open(observer);\n dir.observe(object, arrayObserve);\n return dir;\n }\n\n var observedSetCache = [];\n\n function newObservedSet() {\n var observerCount = 0;\n var observers = [];\n var objects = [];\n var rootObj;\n var rootObjProps;\n\n function observe(obj, prop) {\n if (!obj)\n return;\n\n if (obj === rootObj)\n rootObjProps[prop] = true;\n\n if (objects.indexOf(obj) < 0) {\n objects.push(obj);\n Object.observe(obj, callback);\n }\n\n observe(Object.getPrototypeOf(obj), prop);\n }\n\n function allRootObjNonObservedProps(recs) {\n for (var i = 0; i < recs.length; i++) {\n var rec = recs[i];\n if (rec.object !== rootObj ||\n rootObjProps[rec.name] ||\n rec.type === 'setPrototype') {\n return false;\n }\n }\n return true;\n }\n\n function callback(recs) {\n if (allRootObjNonObservedProps(recs))\n return;\n\n var observer;\n for (var i = 0; i < observers.length; i++) {\n observer = observers[i];\n if (observer.state_ == OPENED) {\n observer.iterateObjects_(observe);\n }\n }\n\n for (var i = 0; i < observers.length; i++) {\n observer = observers[i];\n if (observer.state_ == OPENED) {\n observer.check_();\n }\n }\n }\n\n var record = {\n object: undefined,\n objects: objects,\n open: function(obs, object) {\n if (!rootObj) {\n rootObj = object;\n rootObjProps = {};\n }\n\n observers.push(obs);\n observerCount++;\n obs.iterateObjects_(observe);\n },\n close: function(obs) {\n observerCount--;\n if (observerCount > 0) {\n return;\n }\n\n for (var i = 0; i < objects.length; i++) {\n Object.unobserve(objects[i], callback);\n Observer.unobservedCount++;\n }\n\n observers.length = 0;\n objects.length = 0;\n rootObj = undefined;\n rootObjProps = undefined;\n observedSetCache.push(this);\n }\n };\n\n return record;\n }\n\n var lastObservedSet;\n\n function getObservedSet(observer, obj) {\n if (!lastObservedSet || lastObservedSet.object !== obj) {\n lastObservedSet = observedSetCache.pop() || newObservedSet();\n lastObservedSet.object = obj;\n }\n lastObservedSet.open(observer, obj);\n return lastObservedSet;\n }\n\n var UNOPENED = 0;\n var OPENED = 1;\n var CLOSED = 2;\n var RESETTING = 3;\n\n var nextObserverId = 1;\n\n function Observer() {\n this.state_ = UNOPENED;\n this.callback_ = undefined;\n this.target_ = undefined; // TODO(rafaelw): Should be WeakRef\n this.directObserver_ = undefined;\n this.value_ = undefined;\n this.id_ = nextObserverId++;\n }\n\n Observer.prototype = {\n open: function(callback, target) {\n if (this.state_ != UNOPENED)\n throw Error('Observer has already been opened.');\n\n addToAll(this);\n this.callback_ = callback;\n this.target_ = target;\n this.connect_();\n this.state_ = OPENED;\n return this.value_;\n },\n\n close: function() {\n if (this.state_ != OPENED)\n return;\n\n removeFromAll(this);\n this.disconnect_();\n this.value_ = undefined;\n this.callback_ = undefined;\n this.target_ = undefined;\n this.state_ = CLOSED;\n },\n\n deliver: function() {\n if (this.state_ != OPENED)\n return;\n\n dirtyCheck(this);\n },\n\n report_: function(changes) {\n try {\n this.callback_.apply(this.target_, changes);\n } catch (ex) {\n Observer._errorThrownDuringCallback = true;\n console.error('Exception caught during observer callback: ' +\n (ex.stack || ex));\n }\n },\n\n discardChanges: function() {\n this.check_(undefined, true);\n return this.value_;\n }\n }\n\n var collectObservers = !hasObserve;\n var allObservers;\n Observer._allObserversCount = 0;\n\n if (collectObservers) {\n allObservers = [];\n }\n\n function addToAll(observer) {\n Observer._allObserversCount++;\n if (!collectObservers)\n return;\n\n allObservers.push(observer);\n }\n\n function removeFromAll(observer) {\n Observer._allObserversCount--;\n }\n\n var runningMicrotaskCheckpoint = false;\n\n var hasDebugForceFullDelivery = hasObserve && (function() {\n try {\n eval('%RunMicrotasks()');\n return true;\n } catch (ex) {\n return false;\n }\n })();\n\n global.Platform = global.Platform || {};\n\n global.Platform.performMicrotaskCheckpoint = function() {\n if (runningMicrotaskCheckpoint)\n return;\n\n if (hasDebugForceFullDelivery) {\n eval('%RunMicrotasks()');\n return;\n }\n\n if (!collectObservers)\n return;\n\n runningMicrotaskCheckpoint = true;\n\n var cycles = 0;\n var anyChanged, toCheck;\n\n do {\n cycles++;\n toCheck = allObservers;\n allObservers = [];\n anyChanged = false;\n\n for (var i = 0; i < toCheck.length; i++) {\n var observer = toCheck[i];\n if (observer.state_ != OPENED)\n continue;\n\n if (observer.check_())\n anyChanged = true;\n\n allObservers.push(observer);\n }\n if (runEOMTasks())\n anyChanged = true;\n } while (cycles < MAX_DIRTY_CHECK_CYCLES && anyChanged);\n\n if (global.testingExposeCycleCount)\n global.dirtyCheckCycleCount = cycles;\n\n runningMicrotaskCheckpoint = false;\n };\n\n if (collectObservers) {\n global.Platform.clearObservers = function() {\n allObservers = [];\n };\n }\n\n function ObjectObserver(object) {\n Observer.call(this);\n this.value_ = object;\n this.oldObject_ = undefined;\n }\n\n ObjectObserver.prototype = createObject({\n __proto__: Observer.prototype,\n\n arrayObserve: false,\n\n connect_: function(callback, target) {\n if (hasObserve) {\n this.directObserver_ = getObservedObject(this, this.value_,\n this.arrayObserve);\n } else {\n this.oldObject_ = this.copyObject(this.value_);\n }\n\n },\n\n copyObject: function(object) {\n var copy = Array.isArray(object) ? [] : {};\n for (var prop in object) {\n copy[prop] = object[prop];\n };\n if (Array.isArray(object))\n copy.length = object.length;\n return copy;\n },\n\n check_: function(changeRecords, skipChanges) {\n var diff;\n var oldValues;\n if (hasObserve) {\n if (!changeRecords)\n return false;\n\n oldValues = {};\n diff = diffObjectFromChangeRecords(this.value_, changeRecords,\n oldValues);\n } else {\n oldValues = this.oldObject_;\n diff = diffObjectFromOldObject(this.value_, this.oldObject_);\n }\n\n if (diffIsEmpty(diff))\n return false;\n\n if (!hasObserve)\n this.oldObject_ = this.copyObject(this.value_);\n\n this.report_([\n diff.added || {},\n diff.removed || {},\n diff.changed || {},\n function(property) {\n return oldValues[property];\n }\n ]);\n\n return true;\n },\n\n disconnect_: function() {\n if (hasObserve) {\n this.directObserver_.close();\n this.directObserver_ = undefined;\n } else {\n this.oldObject_ = undefined;\n }\n },\n\n deliver: function() {\n if (this.state_ != OPENED)\n return;\n\n if (hasObserve)\n this.directObserver_.deliver(false);\n else\n dirtyCheck(this);\n },\n\n discardChanges: function() {\n if (this.directObserver_)\n this.directObserver_.deliver(true);\n else\n this.oldObject_ = this.copyObject(this.value_);\n\n return this.value_;\n }\n });\n\n function ArrayObserver(array) {\n if (!Array.isArray(array))\n throw Error('Provided object is not an Array');\n ObjectObserver.call(this, array);\n }\n\n ArrayObserver.prototype = createObject({\n\n __proto__: ObjectObserver.prototype,\n\n arrayObserve: true,\n\n copyObject: function(arr) {\n return arr.slice();\n },\n\n check_: function(changeRecords) {\n var splices;\n if (hasObserve) {\n if (!changeRecords)\n return false;\n splices = projectArraySplices(this.value_, changeRecords);\n } else {\n splices = calcSplices(this.value_, 0, this.value_.length,\n this.oldObject_, 0, this.oldObject_.length);\n }\n\n if (!splices || !splices.length)\n return false;\n\n if (!hasObserve)\n this.oldObject_ = this.copyObject(this.value_);\n\n this.report_([splices]);\n return true;\n }\n });\n\n ArrayObserver.applySplices = function(previous, current, splices) {\n splices.forEach(function(splice) {\n var spliceArgs = [splice.index, splice.removed.length];\n var addIndex = splice.index;\n while (addIndex < splice.index + splice.addedCount) {\n spliceArgs.push(current[addIndex]);\n addIndex++;\n }\n\n Array.prototype.splice.apply(previous, spliceArgs);\n });\n };\n\n function PathObserver(object, path) {\n Observer.call(this);\n\n this.object_ = object;\n this.path_ = getPath(path);\n this.directObserver_ = undefined;\n }\n\n PathObserver.prototype = createObject({\n __proto__: Observer.prototype,\n\n connect_: function() {\n if (hasObserve)\n this.directObserver_ = getObservedSet(this, this.object_);\n\n this.check_(undefined, true);\n },\n\n disconnect_: function() {\n this.value_ = undefined;\n\n if (this.directObserver_) {\n this.directObserver_.close(this);\n this.directObserver_ = undefined;\n }\n },\n\n iterateObjects_: function(observe) {\n this.path_.iterateObjects(this.object_, observe);\n },\n\n check_: function(changeRecords, skipChanges) {\n var oldValue = this.value_;\n this.value_ = this.path_.getValueFrom(this.object_);\n if (skipChanges || areSameValue(this.value_, oldValue))\n return false;\n\n this.report_([this.value_, oldValue]);\n return true;\n },\n\n setValue: function(newValue) {\n if (this.path_)\n this.path_.setValueFrom(this.object_, newValue);\n }\n });\n\n function CompoundObserver(reportChangesOnOpen) {\n Observer.call(this);\n\n this.reportChangesOnOpen_ = reportChangesOnOpen;\n this.value_ = [];\n this.directObserver_ = undefined;\n this.observed_ = [];\n }\n\n var observerSentinel = {};\n\n CompoundObserver.prototype = createObject({\n __proto__: Observer.prototype,\n\n connect_: function() {\n if (hasObserve) {\n var object;\n var needsDirectObserver = false;\n for (var i = 0; i < this.observed_.length; i += 2) {\n object = this.observed_[i]\n if (object !== observerSentinel) {\n needsDirectObserver = true;\n break;\n }\n }\n\n if (needsDirectObserver)\n this.directObserver_ = getObservedSet(this, object);\n }\n\n this.check_(undefined, !this.reportChangesOnOpen_);\n },\n\n disconnect_: function() {\n for (var i = 0; i < this.observed_.length; i += 2) {\n if (this.observed_[i] === observerSentinel)\n this.observed_[i + 1].close();\n }\n this.observed_.length = 0;\n this.value_.length = 0;\n\n if (this.directObserver_) {\n this.directObserver_.close(this);\n this.directObserver_ = undefined;\n }\n },\n\n addPath: function(object, path) {\n if (this.state_ != UNOPENED && this.state_ != RESETTING)\n throw Error('Cannot add paths once started.');\n\n var path = getPath(path);\n this.observed_.push(object, path);\n if (!this.reportChangesOnOpen_)\n return;\n var index = this.observed_.length / 2 - 1;\n this.value_[index] = path.getValueFrom(object);\n },\n\n addObserver: function(observer) {\n if (this.state_ != UNOPENED && this.state_ != RESETTING)\n throw Error('Cannot add observers once started.');\n\n this.observed_.push(observerSentinel, observer);\n if (!this.reportChangesOnOpen_)\n return;\n var index = this.observed_.length / 2 - 1;\n this.value_[index] = observer.open(this.deliver, this);\n },\n\n startReset: function() {\n if (this.state_ != OPENED)\n throw Error('Can only reset while open');\n\n this.state_ = RESETTING;\n this.disconnect_();\n },\n\n finishReset: function() {\n if (this.state_ != RESETTING)\n throw Error('Can only finishReset after startReset');\n this.state_ = OPENED;\n this.connect_();\n\n return this.value_;\n },\n\n iterateObjects_: function(observe) {\n var object;\n for (var i = 0; i < this.observed_.length; i += 2) {\n object = this.observed_[i]\n if (object !== observerSentinel)\n this.observed_[i + 1].iterateObjects(object, observe)\n }\n },\n\n check_: function(changeRecords, skipChanges) {\n var oldValues;\n for (var i = 0; i < this.observed_.length; i += 2) {\n var object = this.observed_[i];\n var path = this.observed_[i+1];\n var value;\n if (object === observerSentinel) {\n var observable = path;\n value = this.state_ === UNOPENED ?\n observable.open(this.deliver, this) :\n observable.discardChanges();\n } else {\n value = path.getValueFrom(object);\n }\n\n if (skipChanges) {\n this.value_[i / 2] = value;\n continue;\n }\n\n if (areSameValue(value, this.value_[i / 2]))\n continue;\n\n oldValues = oldValues || [];\n oldValues[i / 2] = this.value_[i / 2];\n this.value_[i / 2] = value;\n }\n\n if (!oldValues)\n return false;\n\n // TODO(rafaelw): Having observed_ as the third callback arg here is\n // pretty lame API. Fix.\n this.report_([this.value_, oldValues, this.observed_]);\n return true;\n }\n });\n\n function identFn(value) { return value; }\n\n function ObserverTransform(observable, getValueFn, setValueFn,\n dontPassThroughSet) {\n this.callback_ = undefined;\n this.target_ = undefined;\n this.value_ = undefined;\n this.observable_ = observable;\n this.getValueFn_ = getValueFn || identFn;\n this.setValueFn_ = setValueFn || identFn;\n // TODO(rafaelw): This is a temporary hack. PolymerExpressions needs this\n // at the moment because of a bug in it's dependency tracking.\n this.dontPassThroughSet_ = dontPassThroughSet;\n }\n\n ObserverTransform.prototype = {\n open: function(callback, target) {\n this.callback_ = callback;\n this.target_ = target;\n this.value_ =\n this.getValueFn_(this.observable_.open(this.observedCallback_, this));\n return this.value_;\n },\n\n observedCallback_: function(value) {\n value = this.getValueFn_(value);\n if (areSameValue(value, this.value_))\n return;\n var oldValue = this.value_;\n this.value_ = value;\n this.callback_.call(this.target_, this.value_, oldValue);\n },\n\n discardChanges: function() {\n this.value_ = this.getValueFn_(this.observable_.discardChanges());\n return this.value_;\n },\n\n deliver: function() {\n return this.observable_.deliver();\n },\n\n setValue: function(value) {\n value = this.setValueFn_(value);\n if (!this.dontPassThroughSet_ && this.observable_.setValue)\n return this.observable_.setValue(value);\n },\n\n close: function() {\n if (this.observable_)\n this.observable_.close();\n this.callback_ = undefined;\n this.target_ = undefined;\n this.observable_ = undefined;\n this.value_ = undefined;\n this.getValueFn_ = undefined;\n this.setValueFn_ = undefined;\n }\n }\n\n var expectedRecordTypes = {\n add: true,\n update: true,\n delete: true\n };\n\n var updateRecord = {\n object: undefined,\n type: 'update',\n name: undefined,\n oldValue: undefined\n };\n\n function notify(object, name, value, oldValue) {\n if (areSameValue(value, oldValue))\n return;\n\n // TODO(rafaelw): Hack hack hack. This entire code really needs to move\n // out of observe-js into polymer.\n if (typeof object.propertyChanged_ == 'function')\n object.propertyChanged_(name, value, oldValue);\n\n if (!hasObserve)\n return;\n\n var notifier = object.notifier_;\n if (!notifier)\n notifier = object.notifier_ = Object.getNotifier(object);\n\n updateRecord.object = object;\n updateRecord.name = name;\n updateRecord.oldValue = oldValue;\n\n notifier.notify(updateRecord);\n }\n\n Observer.createBindablePrototypeAccessor = function(proto, name) {\n var privateName = name + '_';\n var privateObservable = name + 'Observable_';\n\n proto[privateName] = proto[name];\n\n Object.defineProperty(proto, name, {\n get: function() {\n var observable = this[privateObservable];\n if (observable)\n observable.deliver();\n\n return this[privateName];\n },\n set: function(value) {\n var observable = this[privateObservable];\n if (observable) {\n observable.setValue(value);\n return;\n }\n\n var oldValue = this[privateName];\n this[privateName] = value;\n notify(this, name, value, oldValue);\n\n return value;\n },\n configurable: true\n });\n }\n\n Observer.bindToInstance = function(instance, name, observable, resolveFn) {\n var privateName = name + '_';\n var privateObservable = name + 'Observable_';\n\n instance[privateObservable] = observable;\n var oldValue = instance[privateName];\n var value = observable.open(function(value, oldValue) {\n instance[privateName] = value;\n notify(instance, name, value, oldValue);\n });\n\n if (resolveFn && !areSameValue(oldValue, value)) {\n var resolvedValue = resolveFn(oldValue, value);\n if (!areSameValue(value, resolvedValue)) {\n value = resolvedValue;\n if (observable.setValue)\n observable.setValue(value);\n }\n }\n\n instance[privateName] = value;\n notify(instance, name, value, oldValue);\n\n return {\n close: function() {\n observable.close();\n instance[privateObservable] = undefined;\n }\n };\n }\n\n function diffObjectFromChangeRecords(object, changeRecords, oldValues) {\n var added = {};\n var removed = {};\n\n for (var i = 0; i < changeRecords.length; i++) {\n var record = changeRecords[i];\n if (!expectedRecordTypes[record.type]) {\n console.error('Unknown changeRecord type: ' + record.type);\n console.error(record);\n continue;\n }\n\n if (!(record.name in oldValues))\n oldValues[record.name] = record.oldValue;\n\n if (record.type == 'update')\n continue;\n\n if (record.type == 'add') {\n if (record.name in removed)\n delete removed[record.name];\n else\n added[record.name] = true;\n\n continue;\n }\n\n // type = 'delete'\n if (record.name in added) {\n delete added[record.name];\n delete oldValues[record.name];\n } else {\n removed[record.name] = true;\n }\n }\n\n for (var prop in added)\n added[prop] = object[prop];\n\n for (var prop in removed)\n removed[prop] = undefined;\n\n var changed = {};\n for (var prop in oldValues) {\n if (prop in added || prop in removed)\n continue;\n\n var newValue = object[prop];\n if (oldValues[prop] !== newValue)\n changed[prop] = newValue;\n }\n\n return {\n added: added,\n removed: removed,\n changed: changed\n };\n }\n\n function newSplice(index, removed, addedCount) {\n return {\n index: index,\n removed: removed,\n addedCount: addedCount\n };\n }\n\n var EDIT_LEAVE = 0;\n var EDIT_UPDATE = 1;\n var EDIT_ADD = 2;\n var EDIT_DELETE = 3;\n\n function ArraySplice() {}\n\n ArraySplice.prototype = {\n\n // Note: This function is *based* on the computation of the Levenshtein\n // \"edit\" distance. The one change is that \"updates\" are treated as two\n // edits - not one. With Array splices, an update is really a delete\n // followed by an add. By retaining this, we optimize for \"keeping\" the\n // maximum array items in the original array. For example:\n //\n // 'xxxx123' -> '123yyyy'\n //\n // With 1-edit updates, the shortest path would be just to update all seven\n // characters. With 2-edit updates, we delete 4, leave 3, and add 4. This\n // leaves the substring '123' intact.\n calcEditDistances: function(current, currentStart, currentEnd,\n old, oldStart, oldEnd) {\n // \"Deletion\" columns\n var rowCount = oldEnd - oldStart + 1;\n var columnCount = currentEnd - currentStart + 1;\n var distances = new Array(rowCount);\n\n // \"Addition\" rows. Initialize null column.\n for (var i = 0; i < rowCount; i++) {\n distances[i] = new Array(columnCount);\n distances[i][0] = i;\n }\n\n // Initialize null row\n for (var j = 0; j < columnCount; j++)\n distances[0][j] = j;\n\n for (var i = 1; i < rowCount; i++) {\n for (var j = 1; j < columnCount; j++) {\n if (this.equals(current[currentStart + j - 1], old[oldStart + i - 1]))\n distances[i][j] = distances[i - 1][j - 1];\n else {\n var north = distances[i - 1][j] + 1;\n var west = distances[i][j - 1] + 1;\n distances[i][j] = north < west ? north : west;\n }\n }\n }\n\n return distances;\n },\n\n // This starts at the final weight, and walks \"backward\" by finding\n // the minimum previous weight recursively until the origin of the weight\n // matrix.\n spliceOperationsFromEditDistances: function(distances) {\n var i = distances.length - 1;\n var j = distances[0].length - 1;\n var current = distances[i][j];\n var edits = [];\n while (i > 0 || j > 0) {\n if (i == 0) {\n edits.push(EDIT_ADD);\n j--;\n continue;\n }\n if (j == 0) {\n edits.push(EDIT_DELETE);\n i--;\n continue;\n }\n var northWest = distances[i - 1][j - 1];\n var west = distances[i - 1][j];\n var north = distances[i][j - 1];\n\n var min;\n if (west < north)\n min = west < northWest ? west : northWest;\n else\n min = north < northWest ? north : northWest;\n\n if (min == northWest) {\n if (northWest == current) {\n edits.push(EDIT_LEAVE);\n } else {\n edits.push(EDIT_UPDATE);\n current = northWest;\n }\n i--;\n j--;\n } else if (min == west) {\n edits.push(EDIT_DELETE);\n i--;\n current = west;\n } else {\n edits.push(EDIT_ADD);\n j--;\n current = north;\n }\n }\n\n edits.reverse();\n return edits;\n },\n\n /**\n * Splice Projection functions:\n *\n * A splice map is a representation of how a previous array of items\n * was transformed into a new array of items. Conceptually it is a list of\n * tuples of\n *\n * <index, removed, addedCount>\n *\n * which are kept in ascending index order of. The tuple represents that at\n * the |index|, |removed| sequence of items were removed, and counting forward\n * from |index|, |addedCount| items were added.\n */\n\n /**\n * Lacking individual splice mutation information, the minimal set of\n * splices can be synthesized given the previous state and final state of an\n * array. The basic approach is to calculate the edit distance matrix and\n * choose the shortest path through it.\n *\n * Complexity: O(l * p)\n * l: The length of the current array\n * p: The length of the old array\n */\n calcSplices: function(current, currentStart, currentEnd,\n old, oldStart, oldEnd) {\n var prefixCount = 0;\n var suffixCount = 0;\n\n var minLength = Math.min(currentEnd - currentStart, oldEnd - oldStart);\n if (currentStart == 0 && oldStart == 0)\n prefixCount = this.sharedPrefix(current, old, minLength);\n\n if (currentEnd == current.length && oldEnd == old.length)\n suffixCount = this.sharedSuffix(current, old, minLength - prefixCount);\n\n currentStart += prefixCount;\n oldStart += prefixCount;\n currentEnd -= suffixCount;\n oldEnd -= suffixCount;\n\n if (currentEnd - currentStart == 0 && oldEnd - oldStart == 0)\n return [];\n\n if (currentStart == currentEnd) {\n var splice = newSplice(currentStart, [], 0);\n while (oldStart < oldEnd)\n splice.removed.push(old[oldStart++]);\n\n return [ splice ];\n } else if (oldStart == oldEnd)\n return [ newSplice(currentStart, [], currentEnd - currentStart) ];\n\n var ops = this.spliceOperationsFromEditDistances(\n this.calcEditDistances(current, currentStart, currentEnd,\n old, oldStart, oldEnd));\n\n var splice = undefined;\n var splices = [];\n var index = currentStart;\n var oldIndex = oldStart;\n for (var i = 0; i < ops.length; i++) {\n switch(ops[i]) {\n case EDIT_LEAVE:\n if (splice) {\n splices.push(splice);\n splice = undefined;\n }\n\n index++;\n oldIndex++;\n break;\n case EDIT_UPDATE:\n if (!splice)\n splice = newSplice(index, [], 0);\n\n splice.addedCount++;\n index++;\n\n splice.removed.push(old[oldIndex]);\n oldIndex++;\n break;\n case EDIT_ADD:\n if (!splice)\n splice = newSplice(index, [], 0);\n\n splice.addedCount++;\n index++;\n break;\n case EDIT_DELETE:\n if (!splice)\n splice = newSplice(index, [], 0);\n\n splice.removed.push(old[oldIndex]);\n oldIndex++;\n break;\n }\n }\n\n if (splice) {\n splices.push(splice);\n }\n return splices;\n },\n\n sharedPrefix: function(current, old, searchLength) {\n for (var i = 0; i < searchLength; i++)\n if (!this.equals(current[i], old[i]))\n return i;\n return searchLength;\n },\n\n sharedSuffix: function(current, old, searchLength) {\n var index1 = current.length;\n var index2 = old.length;\n var count = 0;\n while (count < searchLength && this.equals(current[--index1], old[--index2]))\n count++;\n\n return count;\n },\n\n calculateSplices: function(current, previous) {\n return this.calcSplices(current, 0, current.length, previous, 0,\n previous.length);\n },\n\n equals: function(currentValue, previousValue) {\n return currentValue === previousValue;\n }\n };\n\n var arraySplice = new ArraySplice();\n\n function calcSplices(current, currentStart, currentEnd,\n old, oldStart, oldEnd) {\n return arraySplice.calcSplices(current, currentStart, currentEnd,\n old, oldStart, oldEnd);\n }\n\n function intersect(start1, end1, start2, end2) {\n // Disjoint\n if (end1 < start2 || end2 < start1)\n return -1;\n\n // Adjacent\n if (end1 == start2 || end2 == start1)\n return 0;\n\n // Non-zero intersect, span1 first\n if (start1 < start2) {\n if (end1 < end2)\n return end1 - start2; // Overlap\n else\n return end2 - start2; // Contained\n } else {\n // Non-zero intersect, span2 first\n if (end2 < end1)\n return end2 - start1; // Overlap\n else\n return end1 - start1; // Contained\n }\n }\n\n function mergeSplice(splices, index, removed, addedCount) {\n\n var splice = newSplice(index, removed, addedCount);\n\n var inserted = false;\n var insertionOffset = 0;\n\n for (var i = 0; i < splices.length; i++) {\n var current = splices[i];\n current.index += insertionOffset;\n\n if (inserted)\n continue;\n\n var intersectCount = intersect(splice.index,\n splice.index + splice.removed.length,\n current.index,\n current.index + current.addedCount);\n\n if (intersectCount >= 0) {\n // Merge the two splices\n\n splices.splice(i, 1);\n i--;\n\n insertionOffset -= current.addedCount - current.removed.length;\n\n splice.addedCount += current.addedCount - intersectCount;\n var deleteCount = splice.removed.length +\n current.removed.length - intersectCount;\n\n if (!splice.addedCount && !deleteCount) {\n // merged splice is a noop. discard.\n inserted = true;\n } else {\n var removed = current.removed;\n\n if (splice.index < current.index) {\n // some prefix of splice.removed is prepended to current.removed.\n var prepend = splice.removed.slice(0, current.index - splice.index);\n Array.prototype.push.apply(prepend, removed);\n removed = prepend;\n }\n\n if (splice.index + splice.removed.length > current.index + current.addedCount) {\n // some suffix of splice.removed is appended to current.removed.\n var append = splice.removed.slice(current.index + current.addedCount - splice.index);\n Array.prototype.push.apply(removed, append);\n }\n\n splice.removed = removed;\n if (current.index < splice.index) {\n splice.index = current.index;\n }\n }\n } else if (splice.index < current.index) {\n // Insert splice here.\n\n inserted = true;\n\n splices.splice(i, 0, splice);\n i++;\n\n var offset = splice.addedCount - splice.removed.length\n current.index += offset;\n insertionOffset += offset;\n }\n }\n\n if (!inserted)\n splices.push(splice);\n }\n\n function createInitialSplices(array, changeRecords) {\n var splices = [];\n\n for (var i = 0; i < changeRecords.length; i++) {\n var record = changeRecords[i];\n switch(record.type) {\n case 'splice':\n mergeSplice(splices, record.index, record.removed.slice(), record.addedCount);\n break;\n case 'add':\n case 'update':\n case 'delete':\n if (!isIndex(record.name))\n continue;\n var index = toNumber(record.name);\n if (index < 0)\n continue;\n mergeSplice(splices, index, [record.oldValue], 1);\n break;\n default:\n console.error('Unexpected record type: ' + JSON.stringify(record));\n break;\n }\n }\n\n return splices;\n }\n\n function projectArraySplices(array, changeRecords) {\n var splices = [];\n\n createInitialSplices(array, changeRecords).forEach(function(splice) {\n if (splice.addedCount == 1 && splice.removed.length == 1) {\n if (splice.removed[0] !== array[splice.index])\n splices.push(splice);\n\n return\n };\n\n splices = splices.concat(calcSplices(array, splice.index, splice.index + splice.addedCount,\n splice.removed, 0, splice.removed.length));\n });\n\n return splices;\n }\n\n global.Observer = Observer;\n global.Observer.runEOM_ = runEOM;\n global.Observer.observerSentinel_ = observerSentinel; // for testing.\n global.Observer.hasObjectObserve = hasObserve;\n global.ArrayObserver = ArrayObserver;\n global.ArrayObserver.calculateSplices = function(current, previous) {\n return arraySplice.calculateSplices(current, previous);\n };\n\n global.ArraySplice = ArraySplice;\n global.ObjectObserver = ObjectObserver;\n global.PathObserver = PathObserver;\n global.CompoundObserver = CompoundObserver;\n global.Path = Path;\n global.ObserverTransform = ObserverTransform;\n})(typeof global !== 'undefined' && global && typeof module !== 'undefined' && module ? global : this || window);\n","// select ShadowDOM impl\r\nif (Platform.flags.shadow) {\r\n","// Copyright 2012 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\nwindow.ShadowDOMPolyfill = {};\n\n(function(scope) {\n 'use strict';\n\n var constructorTable = new WeakMap();\n var nativePrototypeTable = new WeakMap();\n var wrappers = Object.create(null);\n\n // Don't test for eval if document has CSP securityPolicy object and we can\n // see that eval is not supported. This avoids an error message in console\n // even when the exception is caught\n var hasEval = !('securityPolicy' in document) ||\n document.securityPolicy.allowsEval;\n\n if (typeof chrome !== 'undefined' && chrome.app && chrome.app.runtime) {\n hasEval = false;\n }\n\n if (hasEval) {\n try {\n var f = new Function('', 'return true;');\n hasEval = f();\n } catch (ex) {\n hasEval = false;\n }\n }\n\n function assert(b) {\n if (!b)\n throw new Error('Assertion failed');\n };\n\n var defineProperty = Object.defineProperty;\n var getOwnPropertyNames = Object.getOwnPropertyNames;\n var getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;\n\n function mixin(to, from) {\n var names = getOwnPropertyNames(from);\n for (var i = 0; i < names.length; i++) {\n var name = names[i];\n defineProperty(to, name, getOwnPropertyDescriptor(from, name));\n }\n return to;\n };\n\n function mixinStatics(to, from) {\n var names = getOwnPropertyNames(from);\n for (var i = 0; i < names.length; i++) {\n var name = names[i];\n switch (name) {\n case 'arguments':\n case 'caller':\n case 'length':\n case 'name':\n case 'prototype':\n case 'toString':\n continue;\n }\n defineProperty(to, name, getOwnPropertyDescriptor(from, name));\n }\n return to;\n };\n\n function oneOf(object, propertyNames) {\n for (var i = 0; i < propertyNames.length; i++) {\n if (propertyNames[i] in object)\n return propertyNames[i];\n }\n }\n\n var nonEnumerableDataDescriptor = {\n value: undefined,\n configurable: true,\n enumerable: false,\n writable: true\n };\n\n function defineNonEnumerableDataProperty(object, name, value) {\n nonEnumerableDataDescriptor.value = value;\n defineProperty(object, name, nonEnumerableDataDescriptor);\n }\n\n // Mozilla's old DOM bindings are bretty busted:\n // https://bugzilla.mozilla.org/show_bug.cgi?id=855844\n // Make sure they are create before we start modifying things.\n getOwnPropertyNames(window);\n\n function getWrapperConstructor(node) {\n var nativePrototype = node.__proto__ || Object.getPrototypeOf(node);\n var wrapperConstructor = constructorTable.get(nativePrototype);\n if (wrapperConstructor)\n return wrapperConstructor;\n\n var parentWrapperConstructor = getWrapperConstructor(nativePrototype);\n\n var GeneratedWrapper = createWrapperConstructor(parentWrapperConstructor);\n registerInternal(nativePrototype, GeneratedWrapper, node);\n\n return GeneratedWrapper;\n }\n\n function addForwardingProperties(nativePrototype, wrapperPrototype) {\n installProperty(nativePrototype, wrapperPrototype, true);\n }\n\n function registerInstanceProperties(wrapperPrototype, instanceObject) {\n installProperty(instanceObject, wrapperPrototype, false);\n }\n\n var isFirefox = /Firefox/.test(navigator.userAgent);\n\n // This is used as a fallback when getting the descriptor fails in\n // installProperty.\n var dummyDescriptor = {\n get: function() {},\n set: function(v) {},\n configurable: true,\n enumerable: true\n };\n\n function isEventHandlerName(name) {\n return /^on[a-z]+$/.test(name);\n }\n\n function isIdentifierName(name) {\n return /^\\w[a-zA-Z_0-9]*$/.test(name);\n }\n\n function getGetter(name) {\n return hasEval && isIdentifierName(name) ?\n new Function('return this.impl.' + name) :\n function() { return this.impl[name]; };\n }\n\n function getSetter(name) {\n return hasEval && isIdentifierName(name) ?\n new Function('v', 'this.impl.' + name + ' = v') :\n function(v) { this.impl[name] = v; };\n }\n\n function getMethod(name) {\n return hasEval && isIdentifierName(name) ?\n new Function('return this.impl.' + name +\n '.apply(this.impl, arguments)') :\n function() { return this.impl[name].apply(this.impl, arguments); };\n }\n\n function getDescriptor(source, name) {\n try {\n return Object.getOwnPropertyDescriptor(source, name);\n } catch (ex) {\n // JSC and V8 both use data properties instead of accessors which can\n // cause getting the property desciptor to throw an exception.\n // https://bugs.webkit.org/show_bug.cgi?id=49739\n return dummyDescriptor;\n }\n }\n\n function installProperty(source, target, allowMethod, opt_blacklist) {\n var names = getOwnPropertyNames(source);\n for (var i = 0; i < names.length; i++) {\n var name = names[i];\n if (name === 'polymerBlackList_')\n continue;\n\n if (name in target)\n continue;\n\n if (source.polymerBlackList_ && source.polymerBlackList_[name])\n continue;\n\n if (isFirefox) {\n // Tickle Firefox's old bindings.\n source.__lookupGetter__(name);\n }\n var descriptor = getDescriptor(source, name);\n var getter, setter;\n if (allowMethod && typeof descriptor.value === 'function') {\n target[name] = getMethod(name);\n continue;\n }\n\n var isEvent = isEventHandlerName(name);\n if (isEvent)\n getter = scope.getEventHandlerGetter(name);\n else\n getter = getGetter(name);\n\n if (descriptor.writable || descriptor.set) {\n if (isEvent)\n setter = scope.getEventHandlerSetter(name);\n else\n setter = getSetter(name);\n }\n\n defineProperty(target, name, {\n get: getter,\n set: setter,\n configurable: descriptor.configurable,\n enumerable: descriptor.enumerable\n });\n }\n }\n\n /**\n * @param {Function} nativeConstructor\n * @param {Function} wrapperConstructor\n * @param {Object=} opt_instance If present, this is used to extract\n * properties from an instance object.\n */\n function register(nativeConstructor, wrapperConstructor, opt_instance) {\n var nativePrototype = nativeConstructor.prototype;\n registerInternal(nativePrototype, wrapperConstructor, opt_instance);\n mixinStatics(wrapperConstructor, nativeConstructor);\n }\n\n function registerInternal(nativePrototype, wrapperConstructor, opt_instance) {\n var wrapperPrototype = wrapperConstructor.prototype;\n assert(constructorTable.get(nativePrototype) === undefined);\n\n constructorTable.set(nativePrototype, wrapperConstructor);\n nativePrototypeTable.set(wrapperPrototype, nativePrototype);\n\n addForwardingProperties(nativePrototype, wrapperPrototype);\n if (opt_instance)\n registerInstanceProperties(wrapperPrototype, opt_instance);\n\n defineNonEnumerableDataProperty(\n wrapperPrototype, 'constructor', wrapperConstructor);\n // Set it again. Some VMs optimizes objects that are used as prototypes.\n wrapperConstructor.prototype = wrapperPrototype;\n }\n\n function isWrapperFor(wrapperConstructor, nativeConstructor) {\n return constructorTable.get(nativeConstructor.prototype) ===\n wrapperConstructor;\n }\n\n /**\n * Creates a generic wrapper constructor based on |object| and its\n * constructor.\n * @param {Node} object\n * @return {Function} The generated constructor.\n */\n function registerObject(object) {\n var nativePrototype = Object.getPrototypeOf(object);\n\n var superWrapperConstructor = getWrapperConstructor(nativePrototype);\n var GeneratedWrapper = createWrapperConstructor(superWrapperConstructor);\n registerInternal(nativePrototype, GeneratedWrapper, object);\n\n return GeneratedWrapper;\n }\n\n function createWrapperConstructor(superWrapperConstructor) {\n function GeneratedWrapper(node) {\n superWrapperConstructor.call(this, node);\n }\n var p = Object.create(superWrapperConstructor.prototype);\n p.constructor = GeneratedWrapper;\n GeneratedWrapper.prototype = p;\n\n return GeneratedWrapper;\n }\n\n var OriginalDOMImplementation = window.DOMImplementation;\n var OriginalEventTarget = window.EventTarget;\n var OriginalEvent = window.Event;\n var OriginalNode = window.Node;\n var OriginalWindow = window.Window;\n var OriginalRange = window.Range;\n var OriginalCanvasRenderingContext2D = window.CanvasRenderingContext2D;\n var OriginalWebGLRenderingContext = window.WebGLRenderingContext;\n var OriginalSVGElementInstance = window.SVGElementInstance;\n\n function isWrapper(object) {\n return object instanceof wrappers.EventTarget ||\n object instanceof wrappers.Event ||\n object instanceof wrappers.Range ||\n object instanceof wrappers.DOMImplementation ||\n object instanceof wrappers.CanvasRenderingContext2D ||\n wrappers.WebGLRenderingContext &&\n object instanceof wrappers.WebGLRenderingContext;\n }\n\n function isNative(object) {\n return OriginalEventTarget && object instanceof OriginalEventTarget ||\n object instanceof OriginalNode ||\n object instanceof OriginalEvent ||\n object instanceof OriginalWindow ||\n object instanceof OriginalRange ||\n object instanceof OriginalDOMImplementation ||\n object instanceof OriginalCanvasRenderingContext2D ||\n OriginalWebGLRenderingContext &&\n object instanceof OriginalWebGLRenderingContext ||\n OriginalSVGElementInstance &&\n object instanceof OriginalSVGElementInstance;\n }\n\n /**\n * Wraps a node in a WrapperNode. If there already exists a wrapper for the\n * |node| that wrapper is returned instead.\n * @param {Node} node\n * @return {WrapperNode}\n */\n function wrap(impl) {\n if (impl === null)\n return null;\n\n assert(isNative(impl));\n return impl.polymerWrapper_ ||\n (impl.polymerWrapper_ = new (getWrapperConstructor(impl))(impl));\n }\n\n /**\n * Unwraps a wrapper and returns the node it is wrapping.\n * @param {WrapperNode} wrapper\n * @return {Node}\n */\n function unwrap(wrapper) {\n if (wrapper === null)\n return null;\n assert(isWrapper(wrapper));\n return wrapper.impl;\n }\n\n /**\n * Unwraps object if it is a wrapper.\n * @param {Object} object\n * @return {Object} The native implementation object.\n */\n function unwrapIfNeeded(object) {\n return object && isWrapper(object) ? unwrap(object) : object;\n }\n\n /**\n * Wraps object if it is not a wrapper.\n * @param {Object} object\n * @return {Object} The wrapper for object.\n */\n function wrapIfNeeded(object) {\n return object && !isWrapper(object) ? wrap(object) : object;\n }\n\n /**\n * Overrides the current wrapper (if any) for node.\n * @param {Node} node\n * @param {WrapperNode=} wrapper If left out the wrapper will be created as\n * needed next time someone wraps the node.\n */\n function rewrap(node, wrapper) {\n if (wrapper === null)\n return;\n assert(isNative(node));\n assert(wrapper === undefined || isWrapper(wrapper));\n node.polymerWrapper_ = wrapper;\n }\n\n var getterDescriptor = {\n get: undefined,\n configurable: true,\n enumerable: true\n };\n\n function defineGetter(constructor, name, getter) {\n getterDescriptor.get = getter;\n defineProperty(constructor.prototype, name, getterDescriptor);\n }\n\n function defineWrapGetter(constructor, name) {\n defineGetter(constructor, name, function() {\n return wrap(this.impl[name]);\n });\n }\n\n /**\n * Forwards existing methods on the native object to the wrapper methods.\n * This does not wrap any of the arguments or the return value since the\n * wrapper implementation already takes care of that.\n * @param {Array.<Function>} constructors\n * @parem {Array.<string>} names\n */\n function forwardMethodsToWrapper(constructors, names) {\n constructors.forEach(function(constructor) {\n names.forEach(function(name) {\n constructor.prototype[name] = function() {\n var w = wrapIfNeeded(this);\n return w[name].apply(w, arguments);\n };\n });\n });\n }\n\n scope.assert = assert;\n scope.constructorTable = constructorTable;\n scope.defineGetter = defineGetter;\n scope.defineWrapGetter = defineWrapGetter;\n scope.forwardMethodsToWrapper = forwardMethodsToWrapper;\n scope.isWrapper = isWrapper;\n scope.isWrapperFor = isWrapperFor;\n scope.mixin = mixin;\n scope.nativePrototypeTable = nativePrototypeTable;\n scope.oneOf = oneOf;\n scope.registerObject = registerObject;\n scope.registerWrapper = register;\n scope.rewrap = rewrap;\n scope.unwrap = unwrap;\n scope.unwrapIfNeeded = unwrapIfNeeded;\n scope.wrap = wrap;\n scope.wrapIfNeeded = wrapIfNeeded;\n scope.wrappers = wrappers;\n\n})(window.ShadowDOMPolyfill);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is goverened by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n(function(context) {\n 'use strict';\n\n var OriginalMutationObserver = window.MutationObserver;\n var callbacks = [];\n var pending = false;\n var timerFunc;\n\n function handle() {\n pending = false;\n var copies = callbacks.slice(0);\n callbacks = [];\n for (var i = 0; i < copies.length; i++) {\n (0, copies[i])();\n }\n }\n\n if (OriginalMutationObserver) {\n var counter = 1;\n var observer = new OriginalMutationObserver(handle);\n var textNode = document.createTextNode(counter);\n observer.observe(textNode, {characterData: true});\n\n timerFunc = function() {\n counter = (counter + 1) % 2;\n textNode.data = counter;\n };\n\n } else {\n timerFunc = window.setImmediate || window.setTimeout;\n }\n\n function setEndOfMicrotask(func) {\n callbacks.push(func);\n if (pending)\n return;\n pending = true;\n timerFunc(handle, 0);\n }\n\n context.setEndOfMicrotask = setEndOfMicrotask;\n\n})(window.ShadowDOMPolyfill);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is goverened by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n(function(scope) {\n 'use strict';\n\n var setEndOfMicrotask = scope.setEndOfMicrotask\n var wrapIfNeeded = scope.wrapIfNeeded\n var wrappers = scope.wrappers;\n\n var registrationsTable = new WeakMap();\n var globalMutationObservers = [];\n var isScheduled = false;\n\n function scheduleCallback(observer) {\n if (isScheduled)\n return;\n setEndOfMicrotask(notifyObservers);\n isScheduled = true;\n }\n\n // http://dom.spec.whatwg.org/#mutation-observers\n function notifyObservers() {\n isScheduled = false;\n\n do {\n var notifyList = globalMutationObservers.slice();\n var anyNonEmpty = false;\n for (var i = 0; i < notifyList.length; i++) {\n var mo = notifyList[i];\n var queue = mo.takeRecords();\n removeTransientObserversFor(mo);\n if (queue.length) {\n mo.callback_(queue, mo);\n anyNonEmpty = true;\n }\n }\n } while (anyNonEmpty);\n }\n\n /**\n * @param {string} type\n * @param {Node} target\n * @constructor\n */\n function MutationRecord(type, target) {\n this.type = type;\n this.target = target;\n this.addedNodes = new wrappers.NodeList();\n this.removedNodes = new wrappers.NodeList();\n this.previousSibling = null;\n this.nextSibling = null;\n this.attributeName = null;\n this.attributeNamespace = null;\n this.oldValue = null;\n }\n\n /**\n * Registers transient observers to ancestor and its ancesors for the node\n * which was removed.\n * @param {!Node} ancestor\n * @param {!Node} node\n */\n function registerTransientObservers(ancestor, node) {\n for (; ancestor; ancestor = ancestor.parentNode) {\n var registrations = registrationsTable.get(ancestor);\n if (!registrations)\n continue;\n for (var i = 0; i < registrations.length; i++) {\n var registration = registrations[i];\n if (registration.options.subtree)\n registration.addTransientObserver(node);\n }\n }\n }\n\n function removeTransientObserversFor(observer) {\n for (var i = 0; i < observer.nodes_.length; i++) {\n var node = observer.nodes_[i];\n var registrations = registrationsTable.get(node);\n if (!registrations)\n return;\n for (var j = 0; j < registrations.length; j++) {\n var registration = registrations[j];\n if (registration.observer === observer)\n registration.removeTransientObservers();\n }\n }\n }\n\n // http://dom.spec.whatwg.org/#queue-a-mutation-record\n function enqueueMutation(target, type, data) {\n // 1.\n var interestedObservers = Object.create(null);\n var associatedStrings = Object.create(null);\n\n // 2.\n for (var node = target; node; node = node.parentNode) {\n // 3.\n var registrations = registrationsTable.get(node);\n if (!registrations)\n continue;\n for (var j = 0; j < registrations.length; j++) {\n var registration = registrations[j];\n var options = registration.options;\n // 1.\n if (node !== target && !options.subtree)\n continue;\n\n // 2.\n if (type === 'attributes' && !options.attributes)\n continue;\n\n // 3. If type is \"attributes\", options's attributeFilter is present, and\n // either options's attributeFilter does not contain name or namespace\n // is non-null, continue.\n if (type === 'attributes' && options.attributeFilter &&\n (data.namespace !== null ||\n options.attributeFilter.indexOf(data.name) === -1)) {\n continue;\n }\n\n // 4.\n if (type === 'characterData' && !options.characterData)\n continue;\n\n // 5.\n if (type === 'childList' && !options.childList)\n continue;\n\n // 6.\n var observer = registration.observer;\n interestedObservers[observer.uid_] = observer;\n\n // 7. If either type is \"attributes\" and options's attributeOldValue is\n // true, or type is \"characterData\" and options's characterDataOldValue\n // is true, set the paired string of registered observer's observer in\n // interested observers to oldValue.\n if (type === 'attributes' && options.attributeOldValue ||\n type === 'characterData' && options.characterDataOldValue) {\n associatedStrings[observer.uid_] = data.oldValue;\n }\n }\n }\n\n var anyRecordsEnqueued = false;\n\n // 4.\n for (var uid in interestedObservers) {\n var observer = interestedObservers[uid];\n var record = new MutationRecord(type, target);\n\n // 2.\n if ('name' in data && 'namespace' in data) {\n record.attributeName = data.name;\n record.attributeNamespace = data.namespace;\n }\n\n // 3.\n if (data.addedNodes)\n record.addedNodes = data.addedNodes;\n\n // 4.\n if (data.removedNodes)\n record.removedNodes = data.removedNodes;\n\n // 5.\n if (data.previousSibling)\n record.previousSibling = data.previousSibling;\n\n // 6.\n if (data.nextSibling)\n record.nextSibling = data.nextSibling;\n\n // 7.\n if (associatedStrings[uid] !== undefined)\n record.oldValue = associatedStrings[uid];\n\n // 8.\n observer.records_.push(record);\n\n anyRecordsEnqueued = true;\n }\n\n if (anyRecordsEnqueued)\n scheduleCallback();\n }\n\n var slice = Array.prototype.slice;\n\n /**\n * @param {!Object} options\n * @constructor\n */\n function MutationObserverOptions(options) {\n this.childList = !!options.childList;\n this.subtree = !!options.subtree;\n\n // 1. If either options' attributeOldValue or attributeFilter is present\n // and options' attributes is omitted, set options' attributes to true.\n if (!('attributes' in options) &&\n ('attributeOldValue' in options || 'attributeFilter' in options)) {\n this.attributes = true;\n } else {\n this.attributes = !!options.attributes;\n }\n\n // 2. If options' characterDataOldValue is present and options'\n // characterData is omitted, set options' characterData to true.\n if ('characterDataOldValue' in options && !('characterData' in options))\n this.characterData = true;\n else\n this.characterData = !!options.characterData;\n\n // 3. & 4.\n if (!this.attributes &&\n (options.attributeOldValue || 'attributeFilter' in options) ||\n // 5.\n !this.characterData && options.characterDataOldValue) {\n throw new TypeError();\n }\n\n this.characterData = !!options.characterData;\n this.attributeOldValue = !!options.attributeOldValue;\n this.characterDataOldValue = !!options.characterDataOldValue;\n if ('attributeFilter' in options) {\n if (options.attributeFilter == null ||\n typeof options.attributeFilter !== 'object') {\n throw new TypeError();\n }\n this.attributeFilter = slice.call(options.attributeFilter);\n } else {\n this.attributeFilter = null;\n }\n }\n\n var uidCounter = 0;\n\n /**\n * The class that maps to the DOM MutationObserver interface.\n * @param {Function} callback.\n * @constructor\n */\n function MutationObserver(callback) {\n this.callback_ = callback;\n this.nodes_ = [];\n this.records_ = [];\n this.uid_ = ++uidCounter;\n\n // This will leak. There is no way to implement this without WeakRefs :'(\n globalMutationObservers.push(this);\n }\n\n MutationObserver.prototype = {\n // http://dom.spec.whatwg.org/#dom-mutationobserver-observe\n observe: function(target, options) {\n target = wrapIfNeeded(target);\n\n var newOptions = new MutationObserverOptions(options);\n\n // 6.\n var registration;\n var registrations = registrationsTable.get(target);\n if (!registrations)\n registrationsTable.set(target, registrations = []);\n\n for (var i = 0; i < registrations.length; i++) {\n if (registrations[i].observer === this) {\n registration = registrations[i];\n // 6.1.\n registration.removeTransientObservers();\n // 6.2.\n registration.options = newOptions;\n }\n }\n\n // 7.\n if (!registration) {\n registration = new Registration(this, target, newOptions);\n registrations.push(registration);\n this.nodes_.push(target);\n }\n },\n\n // http://dom.spec.whatwg.org/#dom-mutationobserver-disconnect\n disconnect: function() {\n this.nodes_.forEach(function(node) {\n var registrations = registrationsTable.get(node);\n for (var i = 0; i < registrations.length; i++) {\n var registration = registrations[i];\n if (registration.observer === this) {\n registrations.splice(i, 1);\n // Each node can only have one registered observer associated with\n // this observer.\n break;\n }\n }\n }, this);\n this.records_ = [];\n },\n\n takeRecords: function() {\n var copyOfRecords = this.records_;\n this.records_ = [];\n return copyOfRecords;\n }\n };\n\n /**\n * Class used to represent a registered observer.\n * @param {MutationObserver} observer\n * @param {Node} target\n * @param {MutationObserverOptions} options\n * @constructor\n */\n function Registration(observer, target, options) {\n this.observer = observer;\n this.target = target;\n this.options = options;\n this.transientObservedNodes = [];\n }\n\n Registration.prototype = {\n /**\n * Adds a transient observer on node. The transient observer gets removed\n * next time we deliver the change records.\n * @param {Node} node\n */\n addTransientObserver: function(node) {\n // Don't add transient observers on the target itself. We already have all\n // the required listeners set up on the target.\n if (node === this.target)\n return;\n\n this.transientObservedNodes.push(node);\n var registrations = registrationsTable.get(node);\n if (!registrations)\n registrationsTable.set(node, registrations = []);\n\n // We know that registrations does not contain this because we already\n // checked if node === this.target.\n registrations.push(this);\n },\n\n removeTransientObservers: function() {\n var transientObservedNodes = this.transientObservedNodes;\n this.transientObservedNodes = [];\n\n for (var i = 0; i < transientObservedNodes.length; i++) {\n var node = transientObservedNodes[i];\n var registrations = registrationsTable.get(node);\n for (var j = 0; j < registrations.length; j++) {\n if (registrations[j] === this) {\n registrations.splice(j, 1);\n // Each node can only have one registered observer associated with\n // this observer.\n break;\n }\n }\n }\n }\n };\n\n scope.enqueueMutation = enqueueMutation;\n scope.registerTransientObservers = registerTransientObservers;\n scope.wrappers.MutationObserver = MutationObserver;\n scope.wrappers.MutationRecord = MutationRecord;\n\n})(window.ShadowDOMPolyfill);\n","/**\n * Copyright 2014 The Polymer Authors. All rights reserved.\n * Use of this source code is goverened by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n(function(scope) {\n 'use strict';\n\n /**\n * A tree scope represents the root of a tree. All nodes in a tree point to\n * the same TreeScope object. The tree scope of a node get set the first time\n * it is accessed or when a node is added or remove to a tree.\n * @constructor\n */\n function TreeScope(root, parent) {\n this.root = root;\n this.parent = parent;\n }\n\n TreeScope.prototype = {\n get renderer() {\n if (this.root instanceof scope.wrappers.ShadowRoot) {\n return scope.getRendererForHost(this.root.host);\n }\n return null;\n },\n\n contains: function(treeScope) {\n for (; treeScope; treeScope = treeScope.parent) {\n if (treeScope === this)\n return true;\n }\n return false;\n }\n };\n\n function setTreeScope(node, treeScope) {\n if (node.treeScope_ !== treeScope) {\n node.treeScope_ = treeScope;\n for (var sr = node.shadowRoot; sr; sr = sr.olderShadowRoot) {\n sr.treeScope_.parent = treeScope;\n }\n for (var child = node.firstChild; child; child = child.nextSibling) {\n setTreeScope(child, treeScope);\n }\n }\n }\n\n function getTreeScope(node) {\n if (node.treeScope_)\n return node.treeScope_;\n var parent = node.parentNode;\n var treeScope;\n if (parent)\n treeScope = getTreeScope(parent);\n else\n treeScope = new TreeScope(node, null);\n return node.treeScope_ = treeScope;\n }\n\n scope.TreeScope = TreeScope;\n scope.getTreeScope = getTreeScope;\n scope.setTreeScope = setTreeScope;\n\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var forwardMethodsToWrapper = scope.forwardMethodsToWrapper;\n var getTreeScope = scope.getTreeScope;\n var mixin = scope.mixin;\n var registerWrapper = scope.registerWrapper;\n var unwrap = scope.unwrap;\n var wrap = scope.wrap;\n var wrappers = scope.wrappers;\n\n var wrappedFuns = new WeakMap();\n var listenersTable = new WeakMap();\n var handledEventsTable = new WeakMap();\n var currentlyDispatchingEvents = new WeakMap();\n var targetTable = new WeakMap();\n var currentTargetTable = new WeakMap();\n var relatedTargetTable = new WeakMap();\n var eventPhaseTable = new WeakMap();\n var stopPropagationTable = new WeakMap();\n var stopImmediatePropagationTable = new WeakMap();\n var eventHandlersTable = new WeakMap();\n var eventPathTable = new WeakMap();\n\n function isShadowRoot(node) {\n return node instanceof wrappers.ShadowRoot;\n }\n\n function isInsertionPoint(node) {\n var localName = node.localName;\n return localName === 'content' || localName === 'shadow';\n }\n\n function isShadowHost(node) {\n return !!node.shadowRoot;\n }\n\n function getEventParent(node) {\n var dv;\n return node.parentNode || (dv = node.defaultView) && wrap(dv) || null;\n }\n\n // https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#dfn-adjusted-parent\n function calculateParents(node, context, ancestors) {\n if (ancestors.length)\n return ancestors.shift();\n\n // 1.\n if (isShadowRoot(node))\n return getInsertionParent(node) || node.host;\n\n // 2.\n var eventParents = scope.eventParentsTable.get(node);\n if (eventParents) {\n // Copy over the remaining event parents for next iteration.\n for (var i = 1; i < eventParents.length; i++) {\n ancestors[i - 1] = eventParents[i];\n }\n return eventParents[0];\n }\n\n // 3.\n if (context && isInsertionPoint(node)) {\n var parentNode = node.parentNode;\n if (parentNode && isShadowHost(parentNode)) {\n var trees = scope.getShadowTrees(parentNode);\n var p = getInsertionParent(context);\n for (var i = 0; i < trees.length; i++) {\n if (trees[i].contains(p))\n return p;\n }\n }\n }\n\n return getEventParent(node);\n }\n\n // https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#event-retargeting\n function retarget(node) {\n var stack = []; // 1.\n var ancestor = node; // 2.\n var targets = [];\n var ancestors = [];\n while (ancestor) { // 3.\n var context = null; // 3.2.\n // TODO(arv): Change order of these. If the stack is empty we always end\n // up pushing ancestor, no matter what.\n if (isInsertionPoint(ancestor)) { // 3.1.\n context = topMostNotInsertionPoint(stack); // 3.1.1.\n var top = stack[stack.length - 1] || ancestor; // 3.1.2.\n stack.push(top);\n } else if (!stack.length) {\n stack.push(ancestor); // 3.3.\n }\n var target = stack[stack.length - 1]; // 3.4.\n targets.push({target: target, currentTarget: ancestor}); // 3.5.\n if (isShadowRoot(ancestor)) // 3.6.\n stack.pop(); // 3.6.1.\n\n ancestor = calculateParents(ancestor, context, ancestors); // 3.7.\n }\n return targets;\n }\n\n function topMostNotInsertionPoint(stack) {\n for (var i = stack.length - 1; i >= 0; i--) {\n if (!isInsertionPoint(stack[i]))\n return stack[i];\n }\n return null;\n }\n\n // https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#dfn-adjusted-related-target\n function adjustRelatedTarget(target, related) {\n var ancestors = [];\n while (target) { // 3.\n var stack = []; // 3.1.\n var ancestor = related; // 3.2.\n var last = undefined; // 3.3. Needs to be reset every iteration.\n while (ancestor) {\n var context = null;\n if (!stack.length) {\n stack.push(ancestor);\n } else {\n if (isInsertionPoint(ancestor)) { // 3.4.3.\n context = topMostNotInsertionPoint(stack);\n // isDistributed is more general than checking whether last is\n // assigned into ancestor.\n if (isDistributed(last)) { // 3.4.3.2.\n var head = stack[stack.length - 1];\n stack.push(head);\n }\n }\n }\n\n if (inSameTree(ancestor, target)) // 3.4.4.\n return stack[stack.length - 1];\n\n if (isShadowRoot(ancestor)) // 3.4.5.\n stack.pop();\n\n last = ancestor; // 3.4.6.\n ancestor = calculateParents(ancestor, context, ancestors); // 3.4.7.\n }\n if (isShadowRoot(target)) // 3.5.\n target = target.host;\n else\n target = target.parentNode; // 3.6.\n }\n }\n\n function getInsertionParent(node) {\n return scope.insertionParentTable.get(node);\n }\n\n function isDistributed(node) {\n return getInsertionParent(node);\n }\n\n function inSameTree(a, b) {\n return getTreeScope(a) === getTreeScope(b);\n }\n\n // pendingError is used to rethrow the first error we got during an event\n // dispatch. The browser actually reports all errors but to do that we would\n // need to rethrow the error asynchronously.\n var pendingError;\n\n function dispatchOriginalEvent(originalEvent) {\n // Make sure this event is only dispatched once.\n if (handledEventsTable.get(originalEvent))\n return;\n handledEventsTable.set(originalEvent, true);\n dispatchEvent(wrap(originalEvent), wrap(originalEvent.target));\n if (pendingError) {\n var err = pendingError;\n pendingError = null;\n throw err;\n }\n }\n\n function isLoadLikeEvent(event) {\n switch (event.type) {\n case 'beforeunload':\n case 'load':\n case 'unload':\n return true;\n }\n return false;\n }\n\n function dispatchEvent(event, originalWrapperTarget) {\n if (currentlyDispatchingEvents.get(event))\n throw new Error('InvalidStateError')\n currentlyDispatchingEvents.set(event, true);\n\n // Render to ensure that the event path is correct.\n scope.renderAllPending();\n var eventPath = retarget(originalWrapperTarget);\n\n // For window \"load\" events the \"load\" event is dispatched at the window but\n // the target is set to the document.\n //\n // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-end.html#the-end\n //\n // TODO(arv): Find a less hacky way to do this.\n if (eventPath.length === 2 &&\n eventPath[0].target instanceof wrappers.Document &&\n isLoadLikeEvent(event)) {\n eventPath.shift();\n }\n\n eventPathTable.set(event, eventPath);\n\n if (dispatchCapturing(event, eventPath)) {\n if (dispatchAtTarget(event, eventPath)) {\n dispatchBubbling(event, eventPath);\n }\n }\n\n eventPhaseTable.set(event, Event.NONE);\n currentTargetTable.delete(event, null);\n currentlyDispatchingEvents.delete(event);\n\n return event.defaultPrevented;\n }\n\n function dispatchCapturing(event, eventPath) {\n var phase;\n\n for (var i = eventPath.length - 1; i > 0; i--) {\n var target = eventPath[i].target;\n var currentTarget = eventPath[i].currentTarget;\n if (target === currentTarget)\n continue;\n\n phase = Event.CAPTURING_PHASE;\n if (!invoke(eventPath[i], event, phase))\n return false;\n }\n\n return true;\n }\n\n function dispatchAtTarget(event, eventPath) {\n var phase = Event.AT_TARGET;\n return invoke(eventPath[0], event, phase);\n }\n\n function dispatchBubbling(event, eventPath) {\n var bubbles = event.bubbles;\n var phase;\n\n for (var i = 1; i < eventPath.length; i++) {\n var target = eventPath[i].target;\n var currentTarget = eventPath[i].currentTarget;\n if (target === currentTarget)\n phase = Event.AT_TARGET;\n else if (bubbles && !stopImmediatePropagationTable.get(event))\n phase = Event.BUBBLING_PHASE;\n else\n continue;\n\n if (!invoke(eventPath[i], event, phase))\n return;\n }\n }\n\n function invoke(tuple, event, phase) {\n var target = tuple.target;\n var currentTarget = tuple.currentTarget;\n\n var listeners = listenersTable.get(currentTarget);\n if (!listeners)\n return true;\n\n if ('relatedTarget' in event) {\n var originalEvent = unwrap(event);\n var unwrappedRelatedTarget = originalEvent.relatedTarget;\n\n // X-Tag sets relatedTarget on a CustomEvent. If they do that there is no\n // way to have relatedTarget return the adjusted target but worse is that\n // the originalEvent might not have a relatedTarget so we hit an assert\n // when we try to wrap it.\n if (unwrappedRelatedTarget) {\n // In IE we can get objects that are not EventTargets at this point.\n // Safari does not have an EventTarget interface so revert to checking\n // for addEventListener as an approximation.\n if (unwrappedRelatedTarget instanceof Object &&\n unwrappedRelatedTarget.addEventListener) {\n var relatedTarget = wrap(unwrappedRelatedTarget);\n\n var adjusted = adjustRelatedTarget(currentTarget, relatedTarget);\n if (adjusted === target)\n return true;\n } else {\n adjusted = null;\n }\n relatedTargetTable.set(event, adjusted);\n }\n }\n\n eventPhaseTable.set(event, phase);\n var type = event.type;\n\n var anyRemoved = false;\n targetTable.set(event, target);\n currentTargetTable.set(event, currentTarget);\n\n for (var i = 0; i < listeners.length; i++) {\n var listener = listeners[i];\n if (listener.removed) {\n anyRemoved = true;\n continue;\n }\n\n if (listener.type !== type ||\n !listener.capture && phase === Event.CAPTURING_PHASE ||\n listener.capture && phase === Event.BUBBLING_PHASE) {\n continue;\n }\n\n try {\n if (typeof listener.handler === 'function')\n listener.handler.call(currentTarget, event);\n else\n listener.handler.handleEvent(event);\n\n if (stopImmediatePropagationTable.get(event))\n return false;\n\n } catch (ex) {\n if (!pendingError)\n pendingError = ex;\n }\n }\n\n if (anyRemoved) {\n var copy = listeners.slice();\n listeners.length = 0;\n for (var i = 0; i < copy.length; i++) {\n if (!copy[i].removed)\n listeners.push(copy[i]);\n }\n }\n\n return !stopPropagationTable.get(event);\n }\n\n function Listener(type, handler, capture) {\n this.type = type;\n this.handler = handler;\n this.capture = Boolean(capture);\n }\n Listener.prototype = {\n equals: function(that) {\n return this.handler === that.handler && this.type === that.type &&\n this.capture === that.capture;\n },\n get removed() {\n return this.handler === null;\n },\n remove: function() {\n this.handler = null;\n }\n };\n\n var OriginalEvent = window.Event;\n OriginalEvent.prototype.polymerBlackList_ = {\n returnValue: true,\n // TODO(arv): keyLocation is part of KeyboardEvent but Firefox does not\n // support constructable KeyboardEvent so we keep it here for now.\n keyLocation: true\n };\n\n /**\n * Creates a new Event wrapper or wraps an existin native Event object.\n * @param {string|Event} type\n * @param {Object=} options\n * @constructor\n */\n function Event(type, options) {\n if (type instanceof OriginalEvent) {\n var impl = type;\n if (!OriginalBeforeUnloadEvent && impl.type === 'beforeunload')\n return new BeforeUnloadEvent(impl);\n this.impl = impl;\n } else {\n return wrap(constructEvent(OriginalEvent, 'Event', type, options));\n }\n }\n Event.prototype = {\n get target() {\n return targetTable.get(this);\n },\n get currentTarget() {\n return currentTargetTable.get(this);\n },\n get eventPhase() {\n return eventPhaseTable.get(this);\n },\n get path() {\n var nodeList = new wrappers.NodeList();\n var eventPath = eventPathTable.get(this);\n if (eventPath) {\n var index = 0;\n var lastIndex = eventPath.length - 1;\n var baseRoot = getTreeScope(currentTargetTable.get(this));\n\n for (var i = 0; i <= lastIndex; i++) {\n var currentTarget = eventPath[i].currentTarget;\n var currentRoot = getTreeScope(currentTarget);\n if (currentRoot.contains(baseRoot) &&\n // Make sure we do not add Window to the path.\n (i !== lastIndex || currentTarget instanceof wrappers.Node)) {\n nodeList[index++] = currentTarget;\n }\n }\n nodeList.length = index;\n }\n return nodeList;\n },\n stopPropagation: function() {\n stopPropagationTable.set(this, true);\n },\n stopImmediatePropagation: function() {\n stopPropagationTable.set(this, true);\n stopImmediatePropagationTable.set(this, true);\n }\n };\n registerWrapper(OriginalEvent, Event, document.createEvent('Event'));\n\n function unwrapOptions(options) {\n if (!options || !options.relatedTarget)\n return options;\n return Object.create(options, {\n relatedTarget: {value: unwrap(options.relatedTarget)}\n });\n }\n\n function registerGenericEvent(name, SuperEvent, prototype) {\n var OriginalEvent = window[name];\n var GenericEvent = function(type, options) {\n if (type instanceof OriginalEvent)\n this.impl = type;\n else\n return wrap(constructEvent(OriginalEvent, name, type, options));\n };\n GenericEvent.prototype = Object.create(SuperEvent.prototype);\n if (prototype)\n mixin(GenericEvent.prototype, prototype);\n if (OriginalEvent) {\n // - Old versions of Safari fails on new FocusEvent (and others?).\n // - IE does not support event constructors.\n // - createEvent('FocusEvent') throws in Firefox.\n // => Try the best practice solution first and fallback to the old way\n // if needed.\n try {\n registerWrapper(OriginalEvent, GenericEvent, new OriginalEvent('temp'));\n } catch (ex) {\n registerWrapper(OriginalEvent, GenericEvent,\n document.createEvent(name));\n }\n }\n return GenericEvent;\n }\n\n var UIEvent = registerGenericEvent('UIEvent', Event);\n var CustomEvent = registerGenericEvent('CustomEvent', Event);\n\n var relatedTargetProto = {\n get relatedTarget() {\n var relatedTarget = relatedTargetTable.get(this);\n // relatedTarget can be null.\n if (relatedTarget !== undefined)\n return relatedTarget;\n return wrap(unwrap(this).relatedTarget);\n }\n };\n\n function getInitFunction(name, relatedTargetIndex) {\n return function() {\n arguments[relatedTargetIndex] = unwrap(arguments[relatedTargetIndex]);\n var impl = unwrap(this);\n impl[name].apply(impl, arguments);\n };\n }\n\n var mouseEventProto = mixin({\n initMouseEvent: getInitFunction('initMouseEvent', 14)\n }, relatedTargetProto);\n\n var focusEventProto = mixin({\n initFocusEvent: getInitFunction('initFocusEvent', 5)\n }, relatedTargetProto);\n\n var MouseEvent = registerGenericEvent('MouseEvent', UIEvent, mouseEventProto);\n var FocusEvent = registerGenericEvent('FocusEvent', UIEvent, focusEventProto);\n\n // In case the browser does not support event constructors we polyfill that\n // by calling `createEvent('Foo')` and `initFooEvent` where the arguments to\n // `initFooEvent` are derived from the registered default event init dict.\n var defaultInitDicts = Object.create(null);\n\n var supportsEventConstructors = (function() {\n try {\n new window.FocusEvent('focus');\n } catch (ex) {\n return false;\n }\n return true;\n })();\n\n /**\n * Constructs a new native event.\n */\n function constructEvent(OriginalEvent, name, type, options) {\n if (supportsEventConstructors)\n return new OriginalEvent(type, unwrapOptions(options));\n\n // Create the arguments from the default dictionary.\n var event = unwrap(document.createEvent(name));\n var defaultDict = defaultInitDicts[name];\n var args = [type];\n Object.keys(defaultDict).forEach(function(key) {\n var v = options != null && key in options ?\n options[key] : defaultDict[key];\n if (key === 'relatedTarget')\n v = unwrap(v);\n args.push(v);\n });\n event['init' + name].apply(event, args);\n return event;\n }\n\n if (!supportsEventConstructors) {\n var configureEventConstructor = function(name, initDict, superName) {\n if (superName) {\n var superDict = defaultInitDicts[superName];\n initDict = mixin(mixin({}, superDict), initDict);\n }\n\n defaultInitDicts[name] = initDict;\n };\n\n // The order of the default event init dictionary keys is important, the\n // arguments to initFooEvent is derived from that.\n configureEventConstructor('Event', {bubbles: false, cancelable: false});\n configureEventConstructor('CustomEvent', {detail: null}, 'Event');\n configureEventConstructor('UIEvent', {view: null, detail: 0}, 'Event');\n configureEventConstructor('MouseEvent', {\n screenX: 0,\n screenY: 0,\n clientX: 0,\n clientY: 0,\n ctrlKey: false,\n altKey: false,\n shiftKey: false,\n metaKey: false,\n button: 0,\n relatedTarget: null\n }, 'UIEvent');\n configureEventConstructor('FocusEvent', {relatedTarget: null}, 'UIEvent');\n }\n\n // Safari 7 does not yet have BeforeUnloadEvent.\n // https://bugs.webkit.org/show_bug.cgi?id=120849\n var OriginalBeforeUnloadEvent = window.BeforeUnloadEvent;\n\n function BeforeUnloadEvent(impl) {\n Event.call(this, impl);\n }\n BeforeUnloadEvent.prototype = Object.create(Event.prototype);\n mixin(BeforeUnloadEvent.prototype, {\n get returnValue() {\n return this.impl.returnValue;\n },\n set returnValue(v) {\n this.impl.returnValue = v;\n }\n });\n\n if (OriginalBeforeUnloadEvent)\n registerWrapper(OriginalBeforeUnloadEvent, BeforeUnloadEvent);\n\n function isValidListener(fun) {\n if (typeof fun === 'function')\n return true;\n return fun && fun.handleEvent;\n }\n\n function isMutationEvent(type) {\n switch (type) {\n case 'DOMAttrModified':\n case 'DOMAttributeNameChanged':\n case 'DOMCharacterDataModified':\n case 'DOMElementNameChanged':\n case 'DOMNodeInserted':\n case 'DOMNodeInsertedIntoDocument':\n case 'DOMNodeRemoved':\n case 'DOMNodeRemovedFromDocument':\n case 'DOMSubtreeModified':\n return true;\n }\n return false;\n }\n\n var OriginalEventTarget = window.EventTarget;\n\n /**\n * This represents a wrapper for an EventTarget.\n * @param {!EventTarget} impl The original event target.\n * @constructor\n */\n function EventTarget(impl) {\n this.impl = impl;\n }\n\n // Node and Window have different internal type checks in WebKit so we cannot\n // use the same method as the original function.\n var methodNames = [\n 'addEventListener',\n 'removeEventListener',\n 'dispatchEvent'\n ];\n\n [Node, Window].forEach(function(constructor) {\n var p = constructor.prototype;\n methodNames.forEach(function(name) {\n Object.defineProperty(p, name + '_', {value: p[name]});\n });\n });\n\n function getTargetToListenAt(wrapper) {\n if (wrapper instanceof wrappers.ShadowRoot)\n wrapper = wrapper.host;\n return unwrap(wrapper);\n }\n\n EventTarget.prototype = {\n addEventListener: function(type, fun, capture) {\n if (!isValidListener(fun) || isMutationEvent(type))\n return;\n\n var listener = new Listener(type, fun, capture);\n var listeners = listenersTable.get(this);\n if (!listeners) {\n listeners = [];\n listenersTable.set(this, listeners);\n } else {\n // Might have a duplicate.\n for (var i = 0; i < listeners.length; i++) {\n if (listener.equals(listeners[i]))\n return;\n }\n }\n\n listeners.push(listener);\n\n var target = getTargetToListenAt(this);\n target.addEventListener_(type, dispatchOriginalEvent, true);\n },\n removeEventListener: function(type, fun, capture) {\n capture = Boolean(capture);\n var listeners = listenersTable.get(this);\n if (!listeners)\n return;\n var count = 0, found = false;\n for (var i = 0; i < listeners.length; i++) {\n if (listeners[i].type === type && listeners[i].capture === capture) {\n count++;\n if (listeners[i].handler === fun) {\n found = true;\n listeners[i].remove();\n }\n }\n }\n\n if (found && count === 1) {\n var target = getTargetToListenAt(this);\n target.removeEventListener_(type, dispatchOriginalEvent, true);\n }\n },\n dispatchEvent: function(event) {\n // We want to use the native dispatchEvent because it triggers the default\n // actions (like checking a checkbox). However, if there are no listeners\n // in the composed tree then there are no events that will trigger and\n // listeners in the non composed tree that are part of the event path are\n // not notified.\n //\n // If we find out that there are no listeners in the composed tree we add\n // a temporary listener to the target which makes us get called back even\n // in that case.\n\n var nativeEvent = unwrap(event);\n var eventType = nativeEvent.type;\n\n // Allow dispatching the same event again. This is safe because if user\n // code calls this during an existing dispatch of the same event the\n // native dispatchEvent throws (that is required by the spec).\n handledEventsTable.set(nativeEvent, false);\n\n // Force rendering since we prefer native dispatch and that works on the\n // composed tree.\n scope.renderAllPending();\n\n var tempListener;\n if (!hasListenerInAncestors(this, eventType)) {\n tempListener = function() {};\n this.addEventListener(eventType, tempListener, true);\n }\n\n try {\n return unwrap(this).dispatchEvent_(nativeEvent);\n } finally {\n if (tempListener)\n this.removeEventListener(eventType, tempListener, true);\n }\n }\n };\n\n function hasListener(node, type) {\n var listeners = listenersTable.get(node);\n if (listeners) {\n for (var i = 0; i < listeners.length; i++) {\n if (!listeners[i].removed && listeners[i].type === type)\n return true;\n }\n }\n return false;\n }\n\n function hasListenerInAncestors(target, type) {\n for (var node = unwrap(target); node; node = node.parentNode) {\n if (hasListener(wrap(node), type))\n return true;\n }\n return false;\n }\n\n if (OriginalEventTarget)\n registerWrapper(OriginalEventTarget, EventTarget);\n\n function wrapEventTargetMethods(constructors) {\n forwardMethodsToWrapper(constructors, methodNames);\n }\n\n var originalElementFromPoint = document.elementFromPoint;\n\n function elementFromPoint(self, document, x, y) {\n scope.renderAllPending();\n\n var element = wrap(originalElementFromPoint.call(document.impl, x, y));\n var targets = retarget(element, this)\n for (var i = 0; i < targets.length; i++) {\n var target = targets[i];\n if (target.currentTarget === self)\n return target.target;\n }\n return null;\n }\n\n /**\n * Returns a function that is to be used as a getter for `onfoo` properties.\n * @param {string} name\n * @return {Function}\n */\n function getEventHandlerGetter(name) {\n return function() {\n var inlineEventHandlers = eventHandlersTable.get(this);\n return inlineEventHandlers && inlineEventHandlers[name] &&\n inlineEventHandlers[name].value || null;\n };\n }\n\n /**\n * Returns a function that is to be used as a setter for `onfoo` properties.\n * @param {string} name\n * @return {Function}\n */\n function getEventHandlerSetter(name) {\n var eventType = name.slice(2);\n return function(value) {\n var inlineEventHandlers = eventHandlersTable.get(this);\n if (!inlineEventHandlers) {\n inlineEventHandlers = Object.create(null);\n eventHandlersTable.set(this, inlineEventHandlers);\n }\n\n var old = inlineEventHandlers[name];\n if (old)\n this.removeEventListener(eventType, old.wrapped, false);\n\n if (typeof value === 'function') {\n var wrapped = function(e) {\n var rv = value.call(this, e);\n if (rv === false)\n e.preventDefault();\n else if (name === 'onbeforeunload' && typeof rv === 'string')\n e.returnValue = rv;\n // mouseover uses true for preventDefault but preventDefault for\n // mouseover is ignored by browsers these day.\n };\n\n this.addEventListener(eventType, wrapped, false);\n inlineEventHandlers[name] = {\n value: value,\n wrapped: wrapped\n };\n }\n };\n }\n\n scope.adjustRelatedTarget = adjustRelatedTarget;\n scope.elementFromPoint = elementFromPoint;\n scope.getEventHandlerGetter = getEventHandlerGetter;\n scope.getEventHandlerSetter = getEventHandlerSetter;\n scope.wrapEventTargetMethods = wrapEventTargetMethods;\n scope.wrappers.BeforeUnloadEvent = BeforeUnloadEvent;\n scope.wrappers.CustomEvent = CustomEvent;\n scope.wrappers.Event = Event;\n scope.wrappers.EventTarget = EventTarget;\n scope.wrappers.FocusEvent = FocusEvent;\n scope.wrappers.MouseEvent = MouseEvent;\n scope.wrappers.UIEvent = UIEvent;\n\n})(window.ShadowDOMPolyfill);\n","// Copyright 2012 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var wrap = scope.wrap;\n\n var nonEnumDescriptor = {enumerable: false};\n\n function nonEnum(obj, prop) {\n Object.defineProperty(obj, prop, nonEnumDescriptor);\n }\n\n function NodeList() {\n this.length = 0;\n nonEnum(this, 'length');\n }\n NodeList.prototype = {\n item: function(index) {\n return this[index];\n }\n };\n nonEnum(NodeList.prototype, 'item');\n\n function wrapNodeList(list) {\n if (list == null)\n return list;\n var wrapperList = new NodeList();\n for (var i = 0, length = list.length; i < length; i++) {\n wrapperList[i] = wrap(list[i]);\n }\n wrapperList.length = length;\n return wrapperList;\n }\n\n function addWrapNodeListMethod(wrapperConstructor, name) {\n wrapperConstructor.prototype[name] = function() {\n return wrapNodeList(this.impl[name].apply(this.impl, arguments));\n };\n }\n\n scope.wrappers.NodeList = NodeList;\n scope.addWrapNodeListMethod = addWrapNodeListMethod;\n scope.wrapNodeList = wrapNodeList;\n\n})(window.ShadowDOMPolyfill);\n","/*\n * Copyright 2014 The Polymer Authors. All rights reserved.\n * Use of this source code is goverened by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n(function(scope) {\n 'use strict';\n\n // TODO(arv): Implement.\n\n scope.wrapHTMLCollection = scope.wrapNodeList;\n scope.wrappers.HTMLCollection = scope.wrappers.NodeList;\n\n})(window.ShadowDOMPolyfill);\n","/**\n * Copyright 2012 The Polymer Authors. All rights reserved.\n * Use of this source code is goverened by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n(function(scope) {\n 'use strict';\n\n var EventTarget = scope.wrappers.EventTarget;\n var NodeList = scope.wrappers.NodeList;\n var TreeScope = scope.TreeScope;\n var assert = scope.assert;\n var defineWrapGetter = scope.defineWrapGetter;\n var enqueueMutation = scope.enqueueMutation;\n var getTreeScope = scope.getTreeScope;\n var isWrapper = scope.isWrapper;\n var mixin = scope.mixin;\n var registerTransientObservers = scope.registerTransientObservers;\n var registerWrapper = scope.registerWrapper;\n var setTreeScope = scope.setTreeScope;\n var unwrap = scope.unwrap;\n var unwrapIfNeeded = scope.unwrapIfNeeded;\n var wrap = scope.wrap;\n var wrapIfNeeded = scope.wrapIfNeeded;\n var wrappers = scope.wrappers;\n\n function assertIsNodeWrapper(node) {\n assert(node instanceof Node);\n }\n\n function createOneElementNodeList(node) {\n var nodes = new NodeList();\n nodes[0] = node;\n nodes.length = 1;\n return nodes;\n }\n\n var surpressMutations = false;\n\n /**\n * Called before node is inserted into a node to enqueue its removal from its\n * old parent.\n * @param {!Node} node The node that is about to be removed.\n * @param {!Node} parent The parent node that the node is being removed from.\n * @param {!NodeList} nodes The collected nodes.\n */\n function enqueueRemovalForInsertedNodes(node, parent, nodes) {\n enqueueMutation(parent, 'childList', {\n removedNodes: nodes,\n previousSibling: node.previousSibling,\n nextSibling: node.nextSibling\n });\n }\n\n function enqueueRemovalForInsertedDocumentFragment(df, nodes) {\n enqueueMutation(df, 'childList', {\n removedNodes: nodes\n });\n }\n\n /**\n * Collects nodes from a DocumentFragment or a Node for removal followed\n * by an insertion.\n *\n * This updates the internal pointers for node, previousNode and nextNode.\n */\n function collectNodes(node, parentNode, previousNode, nextNode) {\n if (node instanceof DocumentFragment) {\n var nodes = collectNodesForDocumentFragment(node);\n\n // The extra loop is to work around bugs with DocumentFragments in IE.\n surpressMutations = true;\n for (var i = nodes.length - 1; i >= 0; i--) {\n node.removeChild(nodes[i]);\n nodes[i].parentNode_ = parentNode;\n }\n surpressMutations = false;\n\n for (var i = 0; i < nodes.length; i++) {\n nodes[i].previousSibling_ = nodes[i - 1] || previousNode;\n nodes[i].nextSibling_ = nodes[i + 1] || nextNode;\n }\n\n if (previousNode)\n previousNode.nextSibling_ = nodes[0];\n if (nextNode)\n nextNode.previousSibling_ = nodes[nodes.length - 1];\n\n return nodes;\n }\n\n var nodes = createOneElementNodeList(node);\n var oldParent = node.parentNode;\n if (oldParent) {\n // This will enqueue the mutation record for the removal as needed.\n oldParent.removeChild(node);\n }\n\n node.parentNode_ = parentNode;\n node.previousSibling_ = previousNode;\n node.nextSibling_ = nextNode;\n if (previousNode)\n previousNode.nextSibling_ = node;\n if (nextNode)\n nextNode.previousSibling_ = node;\n\n return nodes;\n }\n\n function collectNodesNative(node) {\n if (node instanceof DocumentFragment)\n return collectNodesForDocumentFragment(node);\n\n var nodes = createOneElementNodeList(node);\n var oldParent = node.parentNode;\n if (oldParent)\n enqueueRemovalForInsertedNodes(node, oldParent, nodes);\n return nodes;\n }\n\n function collectNodesForDocumentFragment(node) {\n var nodes = new NodeList();\n var i = 0;\n for (var child = node.firstChild; child; child = child.nextSibling) {\n nodes[i++] = child;\n }\n nodes.length = i;\n enqueueRemovalForInsertedDocumentFragment(node, nodes);\n return nodes;\n }\n\n function snapshotNodeList(nodeList) {\n // NodeLists are not live at the moment so just return the same object.\n return nodeList;\n }\n\n // http://dom.spec.whatwg.org/#node-is-inserted\n function nodeWasAdded(node, treeScope) {\n setTreeScope(node, treeScope);\n node.nodeIsInserted_();\n }\n\n function nodesWereAdded(nodes, parent) {\n var treeScope = getTreeScope(parent);\n for (var i = 0; i < nodes.length; i++) {\n nodeWasAdded(nodes[i], treeScope);\n }\n }\n\n // http://dom.spec.whatwg.org/#node-is-removed\n function nodeWasRemoved(node) {\n setTreeScope(node, new TreeScope(node, null));\n }\n\n function nodesWereRemoved(nodes) {\n for (var i = 0; i < nodes.length; i++) {\n nodeWasRemoved(nodes[i]);\n }\n }\n\n function ensureSameOwnerDocument(parent, child) {\n var ownerDoc = parent.nodeType === Node.DOCUMENT_NODE ?\n parent : parent.ownerDocument;\n if (ownerDoc !== child.ownerDocument)\n ownerDoc.adoptNode(child);\n }\n\n function adoptNodesIfNeeded(owner, nodes) {\n if (!nodes.length)\n return;\n\n var ownerDoc = owner.ownerDocument;\n\n // All nodes have the same ownerDocument when we get here.\n if (ownerDoc === nodes[0].ownerDocument)\n return;\n\n for (var i = 0; i < nodes.length; i++) {\n scope.adoptNodeNoRemove(nodes[i], ownerDoc);\n }\n }\n\n function unwrapNodesForInsertion(owner, nodes) {\n adoptNodesIfNeeded(owner, nodes);\n var length = nodes.length;\n\n if (length === 1)\n return unwrap(nodes[0]);\n\n var df = unwrap(owner.ownerDocument.createDocumentFragment());\n for (var i = 0; i < length; i++) {\n df.appendChild(unwrap(nodes[i]));\n }\n return df;\n }\n\n function clearChildNodes(wrapper) {\n if (wrapper.firstChild_ !== undefined) {\n var child = wrapper.firstChild_;\n while (child) {\n var tmp = child;\n child = child.nextSibling_;\n tmp.parentNode_ = tmp.previousSibling_ = tmp.nextSibling_ = undefined;\n }\n }\n wrapper.firstChild_ = wrapper.lastChild_ = undefined;\n }\n\n function removeAllChildNodes(wrapper) {\n if (wrapper.invalidateShadowRenderer()) {\n var childWrapper = wrapper.firstChild;\n while (childWrapper) {\n assert(childWrapper.parentNode === wrapper);\n var nextSibling = childWrapper.nextSibling;\n var childNode = unwrap(childWrapper);\n var parentNode = childNode.parentNode;\n if (parentNode)\n originalRemoveChild.call(parentNode, childNode);\n childWrapper.previousSibling_ = childWrapper.nextSibling_ =\n childWrapper.parentNode_ = null;\n childWrapper = nextSibling;\n }\n wrapper.firstChild_ = wrapper.lastChild_ = null;\n } else {\n var node = unwrap(wrapper);\n var child = node.firstChild;\n var nextSibling;\n while (child) {\n nextSibling = child.nextSibling;\n originalRemoveChild.call(node, child);\n child = nextSibling;\n }\n }\n }\n\n function invalidateParent(node) {\n var p = node.parentNode;\n return p && p.invalidateShadowRenderer();\n }\n\n function cleanupNodes(nodes) {\n for (var i = 0, n; i < nodes.length; i++) {\n n = nodes[i];\n n.parentNode.removeChild(n);\n }\n }\n\n var originalImportNode = document.importNode;\n var originalCloneNode = window.Node.prototype.cloneNode;\n\n function cloneNode(node, deep, opt_doc) {\n var clone;\n if (opt_doc)\n clone = wrap(originalImportNode.call(opt_doc, node.impl, false));\n else\n clone = wrap(originalCloneNode.call(node.impl, false));\n\n if (deep) {\n for (var child = node.firstChild; child; child = child.nextSibling) {\n clone.appendChild(cloneNode(child, true, opt_doc));\n }\n\n if (node instanceof wrappers.HTMLTemplateElement) {\n var cloneContent = clone.content;\n for (var child = node.content.firstChild;\n child;\n child = child.nextSibling) {\n cloneContent.appendChild(cloneNode(child, true, opt_doc));\n }\n }\n }\n // TODO(arv): Some HTML elements also clone other data like value.\n return clone;\n }\n\n function contains(self, child) {\n if (!child || getTreeScope(self) !== getTreeScope(child))\n return false;\n\n for (var node = child; node; node = node.parentNode) {\n if (node === self)\n return true;\n }\n return false;\n }\n\n var OriginalNode = window.Node;\n\n /**\n * This represents a wrapper of a native DOM node.\n * @param {!Node} original The original DOM node, aka, the visual DOM node.\n * @constructor\n * @extends {EventTarget}\n */\n function Node(original) {\n assert(original instanceof OriginalNode);\n\n EventTarget.call(this, original);\n\n // These properties are used to override the visual references with the\n // logical ones. If the value is undefined it means that the logical is the\n // same as the visual.\n\n /**\n * @type {Node|undefined}\n * @private\n */\n this.parentNode_ = undefined;\n\n /**\n * @type {Node|undefined}\n * @private\n */\n this.firstChild_ = undefined;\n\n /**\n * @type {Node|undefined}\n * @private\n */\n this.lastChild_ = undefined;\n\n /**\n * @type {Node|undefined}\n * @private\n */\n this.nextSibling_ = undefined;\n\n /**\n * @type {Node|undefined}\n * @private\n */\n this.previousSibling_ = undefined;\n\n this.treeScope_ = undefined;\n }\n\n var OriginalDocumentFragment = window.DocumentFragment;\n var originalAppendChild = OriginalNode.prototype.appendChild;\n var originalCompareDocumentPosition =\n OriginalNode.prototype.compareDocumentPosition;\n var originalInsertBefore = OriginalNode.prototype.insertBefore;\n var originalRemoveChild = OriginalNode.prototype.removeChild;\n var originalReplaceChild = OriginalNode.prototype.replaceChild;\n\n var isIe = /Trident/.test(navigator.userAgent);\n\n var removeChildOriginalHelper = isIe ?\n function(parent, child) {\n try {\n originalRemoveChild.call(parent, child);\n } catch (ex) {\n if (!(parent instanceof OriginalDocumentFragment))\n throw ex;\n }\n } :\n function(parent, child) {\n originalRemoveChild.call(parent, child);\n };\n\n Node.prototype = Object.create(EventTarget.prototype);\n mixin(Node.prototype, {\n appendChild: function(childWrapper) {\n return this.insertBefore(childWrapper, null);\n },\n\n insertBefore: function(childWrapper, refWrapper) {\n assertIsNodeWrapper(childWrapper);\n\n var refNode;\n if (refWrapper) {\n if (isWrapper(refWrapper)) {\n refNode = unwrap(refWrapper);\n } else {\n refNode = refWrapper;\n refWrapper = wrap(refNode);\n }\n } else {\n refWrapper = null;\n refNode = null;\n }\n\n refWrapper && assert(refWrapper.parentNode === this);\n\n var nodes;\n var previousNode =\n refWrapper ? refWrapper.previousSibling : this.lastChild;\n\n var useNative = !this.invalidateShadowRenderer() &&\n !invalidateParent(childWrapper);\n\n if (useNative)\n nodes = collectNodesNative(childWrapper);\n else\n nodes = collectNodes(childWrapper, this, previousNode, refWrapper);\n\n if (useNative) {\n ensureSameOwnerDocument(this, childWrapper);\n clearChildNodes(this);\n originalInsertBefore.call(this.impl, unwrap(childWrapper), refNode);\n } else {\n if (!previousNode)\n this.firstChild_ = nodes[0];\n if (!refWrapper)\n this.lastChild_ = nodes[nodes.length - 1];\n\n var parentNode = refNode ? refNode.parentNode : this.impl;\n\n // insertBefore refWrapper no matter what the parent is?\n if (parentNode) {\n originalInsertBefore.call(parentNode,\n unwrapNodesForInsertion(this, nodes), refNode);\n } else {\n adoptNodesIfNeeded(this, nodes);\n }\n }\n\n enqueueMutation(this, 'childList', {\n addedNodes: nodes,\n nextSibling: refWrapper,\n previousSibling: previousNode\n });\n\n nodesWereAdded(nodes, this);\n\n return childWrapper;\n },\n\n removeChild: function(childWrapper) {\n assertIsNodeWrapper(childWrapper);\n if (childWrapper.parentNode !== this) {\n // IE has invalid DOM trees at times.\n var found = false;\n var childNodes = this.childNodes;\n for (var ieChild = this.firstChild; ieChild;\n ieChild = ieChild.nextSibling) {\n if (ieChild === childWrapper) {\n found = true;\n break;\n }\n }\n if (!found) {\n // TODO(arv): DOMException\n throw new Error('NotFoundError');\n }\n }\n\n var childNode = unwrap(childWrapper);\n var childWrapperNextSibling = childWrapper.nextSibling;\n var childWrapperPreviousSibling = childWrapper.previousSibling;\n\n if (this.invalidateShadowRenderer()) {\n // We need to remove the real node from the DOM before updating the\n // pointers. This is so that that mutation event is dispatched before\n // the pointers have changed.\n var thisFirstChild = this.firstChild;\n var thisLastChild = this.lastChild;\n\n var parentNode = childNode.parentNode;\n if (parentNode)\n removeChildOriginalHelper(parentNode, childNode);\n\n if (thisFirstChild === childWrapper)\n this.firstChild_ = childWrapperNextSibling;\n if (thisLastChild === childWrapper)\n this.lastChild_ = childWrapperPreviousSibling;\n if (childWrapperPreviousSibling)\n childWrapperPreviousSibling.nextSibling_ = childWrapperNextSibling;\n if (childWrapperNextSibling) {\n childWrapperNextSibling.previousSibling_ =\n childWrapperPreviousSibling;\n }\n\n childWrapper.previousSibling_ = childWrapper.nextSibling_ =\n childWrapper.parentNode_ = undefined;\n } else {\n clearChildNodes(this);\n removeChildOriginalHelper(this.impl, childNode);\n }\n\n if (!surpressMutations) {\n enqueueMutation(this, 'childList', {\n removedNodes: createOneElementNodeList(childWrapper),\n nextSibling: childWrapperNextSibling,\n previousSibling: childWrapperPreviousSibling\n });\n }\n\n registerTransientObservers(this, childWrapper);\n\n return childWrapper;\n },\n\n replaceChild: function(newChildWrapper, oldChildWrapper) {\n assertIsNodeWrapper(newChildWrapper);\n\n var oldChildNode;\n if (isWrapper(oldChildWrapper)) {\n oldChildNode = unwrap(oldChildWrapper);\n } else {\n oldChildNode = oldChildWrapper;\n oldChildWrapper = wrap(oldChildNode);\n }\n\n if (oldChildWrapper.parentNode !== this) {\n // TODO(arv): DOMException\n throw new Error('NotFoundError');\n }\n\n var nextNode = oldChildWrapper.nextSibling;\n var previousNode = oldChildWrapper.previousSibling;\n var nodes;\n\n var useNative = !this.invalidateShadowRenderer() &&\n !invalidateParent(newChildWrapper);\n\n if (useNative) {\n nodes = collectNodesNative(newChildWrapper);\n } else {\n if (nextNode === newChildWrapper)\n nextNode = newChildWrapper.nextSibling;\n nodes = collectNodes(newChildWrapper, this, previousNode, nextNode);\n }\n\n if (!useNative) {\n if (this.firstChild === oldChildWrapper)\n this.firstChild_ = nodes[0];\n if (this.lastChild === oldChildWrapper)\n this.lastChild_ = nodes[nodes.length - 1];\n\n oldChildWrapper.previousSibling_ = oldChildWrapper.nextSibling_ =\n oldChildWrapper.parentNode_ = undefined;\n\n // replaceChild no matter what the parent is?\n if (oldChildNode.parentNode) {\n originalReplaceChild.call(\n oldChildNode.parentNode,\n unwrapNodesForInsertion(this, nodes),\n oldChildNode);\n }\n } else {\n ensureSameOwnerDocument(this, newChildWrapper);\n clearChildNodes(this);\n originalReplaceChild.call(this.impl, unwrap(newChildWrapper),\n oldChildNode);\n }\n\n enqueueMutation(this, 'childList', {\n addedNodes: nodes,\n removedNodes: createOneElementNodeList(oldChildWrapper),\n nextSibling: nextNode,\n previousSibling: previousNode\n });\n\n nodeWasRemoved(oldChildWrapper);\n nodesWereAdded(nodes, this);\n\n return oldChildWrapper;\n },\n\n /**\n * Called after a node was inserted. Subclasses override this to invalidate\n * the renderer as needed.\n * @private\n */\n nodeIsInserted_: function() {\n for (var child = this.firstChild; child; child = child.nextSibling) {\n child.nodeIsInserted_();\n }\n },\n\n hasChildNodes: function() {\n return this.firstChild !== null;\n },\n\n /** @type {Node} */\n get parentNode() {\n // If the parentNode has not been overridden, use the original parentNode.\n return this.parentNode_ !== undefined ?\n this.parentNode_ : wrap(this.impl.parentNode);\n },\n\n /** @type {Node} */\n get firstChild() {\n return this.firstChild_ !== undefined ?\n this.firstChild_ : wrap(this.impl.firstChild);\n },\n\n /** @type {Node} */\n get lastChild() {\n return this.lastChild_ !== undefined ?\n this.lastChild_ : wrap(this.impl.lastChild);\n },\n\n /** @type {Node} */\n get nextSibling() {\n return this.nextSibling_ !== undefined ?\n this.nextSibling_ : wrap(this.impl.nextSibling);\n },\n\n /** @type {Node} */\n get previousSibling() {\n return this.previousSibling_ !== undefined ?\n this.previousSibling_ : wrap(this.impl.previousSibling);\n },\n\n get parentElement() {\n var p = this.parentNode;\n while (p && p.nodeType !== Node.ELEMENT_NODE) {\n p = p.parentNode;\n }\n return p;\n },\n\n get textContent() {\n // TODO(arv): This should fallback to this.impl.textContent if there\n // are no shadow trees below or above the context node.\n var s = '';\n for (var child = this.firstChild; child; child = child.nextSibling) {\n if (child.nodeType != Node.COMMENT_NODE) {\n s += child.textContent;\n }\n }\n return s;\n },\n set textContent(textContent) {\n var removedNodes = snapshotNodeList(this.childNodes);\n\n if (this.invalidateShadowRenderer()) {\n removeAllChildNodes(this);\n if (textContent !== '') {\n var textNode = this.impl.ownerDocument.createTextNode(textContent);\n this.appendChild(textNode);\n }\n } else {\n clearChildNodes(this);\n this.impl.textContent = textContent;\n }\n\n var addedNodes = snapshotNodeList(this.childNodes);\n\n enqueueMutation(this, 'childList', {\n addedNodes: addedNodes,\n removedNodes: removedNodes\n });\n\n nodesWereRemoved(removedNodes);\n nodesWereAdded(addedNodes, this);\n },\n\n get childNodes() {\n var wrapperList = new NodeList();\n var i = 0;\n for (var child = this.firstChild; child; child = child.nextSibling) {\n wrapperList[i++] = child;\n }\n wrapperList.length = i;\n return wrapperList;\n },\n\n cloneNode: function(deep) {\n return cloneNode(this, deep);\n },\n\n contains: function(child) {\n return contains(this, wrapIfNeeded(child));\n },\n\n compareDocumentPosition: function(otherNode) {\n // This only wraps, it therefore only operates on the composed DOM and not\n // the logical DOM.\n return originalCompareDocumentPosition.call(this.impl,\n unwrapIfNeeded(otherNode));\n },\n\n normalize: function() {\n var nodes = snapshotNodeList(this.childNodes);\n var remNodes = [];\n var s = '';\n var modNode;\n\n for (var i = 0, n; i < nodes.length; i++) {\n n = nodes[i];\n if (n.nodeType === Node.TEXT_NODE) {\n if (!modNode && !n.data.length)\n this.removeNode(n);\n else if (!modNode)\n modNode = n;\n else {\n s += n.data;\n remNodes.push(n);\n }\n } else {\n if (modNode && remNodes.length) {\n modNode.data += s;\n cleanUpNodes(remNodes);\n }\n remNodes = [];\n s = '';\n modNode = null;\n if (n.childNodes.length)\n n.normalize();\n }\n }\n\n // handle case where >1 text nodes are the last children\n if (modNode && remNodes.length) {\n modNode.data += s;\n cleanupNodes(remNodes);\n }\n }\n });\n\n defineWrapGetter(Node, 'ownerDocument');\n\n // We use a DocumentFragment as a base and then delete the properties of\n // DocumentFragment.prototype from the wrapper Node. Since delete makes\n // objects slow in some JS engines we recreate the prototype object.\n registerWrapper(OriginalNode, Node, document.createDocumentFragment());\n delete Node.prototype.querySelector;\n delete Node.prototype.querySelectorAll;\n Node.prototype = mixin(Object.create(EventTarget.prototype), Node.prototype);\n\n scope.cloneNode = cloneNode;\n scope.nodeWasAdded = nodeWasAdded;\n scope.nodeWasRemoved = nodeWasRemoved;\n scope.nodesWereAdded = nodesWereAdded;\n scope.nodesWereRemoved = nodesWereRemoved;\n scope.snapshotNodeList = snapshotNodeList;\n scope.wrappers.Node = Node;\n\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is governed by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var HTMLCollection = scope.wrappers.HTMLCollection;\n var NodeList = scope.wrappers.NodeList;\n\n function findOne(node, selector) {\n var m, el = node.firstElementChild;\n while (el) {\n if (el.matches(selector))\n return el;\n m = findOne(el, selector);\n if (m)\n return m;\n el = el.nextElementSibling;\n }\n return null;\n }\n\n function matchesSelector(el, selector) {\n return el.matches(selector);\n }\n\n var XHTML_NS = 'http://www.w3.org/1999/xhtml';\n\n function matchesTagName(el, localName, localNameLowerCase) {\n var ln = el.localName;\n return ln === localName ||\n ln === localNameLowerCase && el.namespaceURI === XHTML_NS;\n }\n\n function matchesEveryThing() {\n return true;\n }\n\n function matchesLocalName(el, localName) {\n return el.localName === localName;\n }\n\n function matchesNameSpace(el, ns) {\n return el.namespaceURI === ns;\n }\n\n function matchesLocalNameNS(el, ns, localName) {\n return el.namespaceURI === ns && el.localName === localName;\n }\n\n function findElements(node, result, p, arg0, arg1) {\n var el = node.firstElementChild;\n while (el) {\n if (p(el, arg0, arg1))\n result[result.length++] = el;\n findElements(el, result, p, arg0, arg1);\n el = el.nextElementSibling;\n }\n return result;\n }\n\n // find and findAll will only match Simple Selectors,\n // Structural Pseudo Classes are not guarenteed to be correct\n // http://www.w3.org/TR/css3-selectors/#simple-selectors\n\n var SelectorsInterface = {\n querySelector: function(selector) {\n return findOne(this, selector);\n },\n querySelectorAll: function(selector) {\n return findElements(this, new NodeList(), matchesSelector, selector);\n }\n };\n\n var GetElementsByInterface = {\n getElementsByTagName: function(localName) {\n var result = new HTMLCollection();\n if (localName === '*')\n return findElements(this, result, matchesEveryThing);\n\n return findElements(this, result,\n matchesTagName,\n localName,\n localName.toLowerCase());\n },\n\n getElementsByClassName: function(className) {\n // TODO(arv): Check className?\n return this.querySelectorAll('.' + className);\n },\n\n getElementsByTagNameNS: function(ns, localName) {\n var result = new HTMLCollection();\n\n if (ns === '') {\n ns = null;\n } else if (ns === '*') {\n if (localName === '*')\n return findElements(this, result, matchesEveryThing);\n return findElements(this, result, matchesLocalName, localName);\n }\n\n if (localName === '*')\n return findElements(this, result, matchesNameSpace, ns);\n\n return findElements(this, result, matchesLocalNameNS, ns, localName);\n }\n };\n\n scope.GetElementsByInterface = GetElementsByInterface;\n scope.SelectorsInterface = SelectorsInterface;\n\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var NodeList = scope.wrappers.NodeList;\n\n function forwardElement(node) {\n while (node && node.nodeType !== Node.ELEMENT_NODE) {\n node = node.nextSibling;\n }\n return node;\n }\n\n function backwardsElement(node) {\n while (node && node.nodeType !== Node.ELEMENT_NODE) {\n node = node.previousSibling;\n }\n return node;\n }\n\n var ParentNodeInterface = {\n get firstElementChild() {\n return forwardElement(this.firstChild);\n },\n\n get lastElementChild() {\n return backwardsElement(this.lastChild);\n },\n\n get childElementCount() {\n var count = 0;\n for (var child = this.firstElementChild;\n child;\n child = child.nextElementSibling) {\n count++;\n }\n return count;\n },\n\n get children() {\n var wrapperList = new NodeList();\n var i = 0;\n for (var child = this.firstElementChild;\n child;\n child = child.nextElementSibling) {\n wrapperList[i++] = child;\n }\n wrapperList.length = i;\n return wrapperList;\n },\n\n remove: function() {\n var p = this.parentNode;\n if (p)\n p.removeChild(this);\n }\n };\n\n var ChildNodeInterface = {\n get nextElementSibling() {\n return forwardElement(this.nextSibling);\n },\n\n get previousElementSibling() {\n return backwardsElement(this.previousSibling);\n }\n };\n\n scope.ChildNodeInterface = ChildNodeInterface;\n scope.ParentNodeInterface = ParentNodeInterface;\n\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var ChildNodeInterface = scope.ChildNodeInterface;\n var Node = scope.wrappers.Node;\n var enqueueMutation = scope.enqueueMutation;\n var mixin = scope.mixin;\n var registerWrapper = scope.registerWrapper;\n\n var OriginalCharacterData = window.CharacterData;\n\n function CharacterData(node) {\n Node.call(this, node);\n }\n CharacterData.prototype = Object.create(Node.prototype);\n mixin(CharacterData.prototype, {\n get textContent() {\n return this.data;\n },\n set textContent(value) {\n this.data = value;\n },\n get data() {\n return this.impl.data;\n },\n set data(value) {\n var oldValue = this.impl.data;\n enqueueMutation(this, 'characterData', {\n oldValue: oldValue\n });\n this.impl.data = value;\n }\n });\n\n mixin(CharacterData.prototype, ChildNodeInterface);\n\n registerWrapper(OriginalCharacterData, CharacterData,\n document.createTextNode(''));\n\n scope.wrappers.CharacterData = CharacterData;\n})(window.ShadowDOMPolyfill);\n","// Copyright 2014 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var CharacterData = scope.wrappers.CharacterData;\n var enqueueMutation = scope.enqueueMutation;\n var mixin = scope.mixin;\n var registerWrapper = scope.registerWrapper;\n\n function toUInt32(x) {\n return x >>> 0;\n }\n\n var OriginalText = window.Text;\n\n function Text(node) {\n CharacterData.call(this, node);\n }\n Text.prototype = Object.create(CharacterData.prototype);\n mixin(Text.prototype, {\n splitText: function(offset) {\n offset = toUInt32(offset);\n var s = this.data;\n if (offset > s.length)\n throw new Error('IndexSizeError');\n var head = s.slice(0, offset);\n var tail = s.slice(offset);\n this.data = head;\n var newTextNode = this.ownerDocument.createTextNode(tail);\n if (this.parentNode)\n this.parentNode.insertBefore(newTextNode, this.nextSibling);\n return newTextNode;\n }\n });\n\n registerWrapper(OriginalText, Text, document.createTextNode(''));\n\n scope.wrappers.Text = Text;\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var ChildNodeInterface = scope.ChildNodeInterface;\n var GetElementsByInterface = scope.GetElementsByInterface;\n var Node = scope.wrappers.Node;\n var ParentNodeInterface = scope.ParentNodeInterface;\n var SelectorsInterface = scope.SelectorsInterface;\n var addWrapNodeListMethod = scope.addWrapNodeListMethod;\n var enqueueMutation = scope.enqueueMutation;\n var mixin = scope.mixin;\n var oneOf = scope.oneOf;\n var registerWrapper = scope.registerWrapper;\n var wrappers = scope.wrappers;\n\n var OriginalElement = window.Element;\n\n var matchesNames = [\n 'matches', // needs to come first.\n 'mozMatchesSelector',\n 'msMatchesSelector',\n 'webkitMatchesSelector',\n ].filter(function(name) {\n return OriginalElement.prototype[name];\n });\n\n var matchesName = matchesNames[0];\n\n var originalMatches = OriginalElement.prototype[matchesName];\n\n function invalidateRendererBasedOnAttribute(element, name) {\n // Only invalidate if parent node is a shadow host.\n var p = element.parentNode;\n if (!p || !p.shadowRoot)\n return;\n\n var renderer = scope.getRendererForHost(p);\n if (renderer.dependsOnAttribute(name))\n renderer.invalidate();\n }\n\n function enqueAttributeChange(element, name, oldValue) {\n // This is not fully spec compliant. We should use localName (which might\n // have a different case than name) and the namespace (which requires us\n // to get the Attr object).\n enqueueMutation(element, 'attributes', {\n name: name,\n namespace: null,\n oldValue: oldValue\n });\n }\n\n function Element(node) {\n Node.call(this, node);\n }\n Element.prototype = Object.create(Node.prototype);\n mixin(Element.prototype, {\n createShadowRoot: function() {\n var newShadowRoot = new wrappers.ShadowRoot(this);\n this.impl.polymerShadowRoot_ = newShadowRoot;\n\n var renderer = scope.getRendererForHost(this);\n renderer.invalidate();\n\n return newShadowRoot;\n },\n\n get shadowRoot() {\n return this.impl.polymerShadowRoot_ || null;\n },\n\n setAttribute: function(name, value) {\n var oldValue = this.impl.getAttribute(name);\n this.impl.setAttribute(name, value);\n enqueAttributeChange(this, name, oldValue);\n invalidateRendererBasedOnAttribute(this, name);\n },\n\n removeAttribute: function(name) {\n var oldValue = this.impl.getAttribute(name);\n this.impl.removeAttribute(name);\n enqueAttributeChange(this, name, oldValue);\n invalidateRendererBasedOnAttribute(this, name);\n },\n\n matches: function(selector) {\n return originalMatches.call(this.impl, selector);\n }\n });\n\n matchesNames.forEach(function(name) {\n if (name !== 'matches') {\n Element.prototype[name] = function(selector) {\n return this.matches(selector);\n };\n }\n });\n\n if (OriginalElement.prototype.webkitCreateShadowRoot) {\n Element.prototype.webkitCreateShadowRoot =\n Element.prototype.createShadowRoot;\n }\n\n /**\n * Useful for generating the accessor pair for a property that reflects an\n * attribute.\n */\n function setterDirtiesAttribute(prototype, propertyName, opt_attrName) {\n var attrName = opt_attrName || propertyName;\n Object.defineProperty(prototype, propertyName, {\n get: function() {\n return this.impl[propertyName];\n },\n set: function(v) {\n this.impl[propertyName] = v;\n invalidateRendererBasedOnAttribute(this, attrName);\n },\n configurable: true,\n enumerable: true\n });\n }\n\n setterDirtiesAttribute(Element.prototype, 'id');\n setterDirtiesAttribute(Element.prototype, 'className', 'class');\n\n mixin(Element.prototype, ChildNodeInterface);\n mixin(Element.prototype, GetElementsByInterface);\n mixin(Element.prototype, ParentNodeInterface);\n mixin(Element.prototype, SelectorsInterface);\n\n registerWrapper(OriginalElement, Element,\n document.createElementNS(null, 'x'));\n\n // TODO(arv): Export setterDirtiesAttribute and apply it to more bindings\n // that reflect attributes.\n scope.matchesNames = matchesNames;\n scope.wrappers.Element = Element;\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var Element = scope.wrappers.Element;\n var defineGetter = scope.defineGetter;\n var enqueueMutation = scope.enqueueMutation;\n var mixin = scope.mixin;\n var nodesWereAdded = scope.nodesWereAdded;\n var nodesWereRemoved = scope.nodesWereRemoved;\n var registerWrapper = scope.registerWrapper;\n var snapshotNodeList = scope.snapshotNodeList;\n var unwrap = scope.unwrap;\n var wrap = scope.wrap;\n var wrappers = scope.wrappers;\n\n /////////////////////////////////////////////////////////////////////////////\n // innerHTML and outerHTML\n\n // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-end.html#escapingString\n var escapeAttrRegExp = /[&\\u00A0\"]/g;\n var escapeDataRegExp = /[&\\u00A0<>]/g;\n\n function escapeReplace(c) {\n switch (c) {\n case '&':\n return '&';\n case '<':\n return '<';\n case '>':\n return '>';\n case '\"':\n return '"'\n case '\\u00A0':\n return ' ';\n }\n }\n\n function escapeAttr(s) {\n return s.replace(escapeAttrRegExp, escapeReplace);\n }\n\n function escapeData(s) {\n return s.replace(escapeDataRegExp, escapeReplace);\n }\n\n function makeSet(arr) {\n var set = {};\n for (var i = 0; i < arr.length; i++) {\n set[arr[i]] = true;\n }\n return set;\n }\n\n // http://www.whatwg.org/specs/web-apps/current-work/#void-elements\n var voidElements = makeSet([\n 'area',\n 'base',\n 'br',\n 'col',\n 'command',\n 'embed',\n 'hr',\n 'img',\n 'input',\n 'keygen',\n 'link',\n 'meta',\n 'param',\n 'source',\n 'track',\n 'wbr'\n ]);\n\n var plaintextParents = makeSet([\n 'style',\n 'script',\n 'xmp',\n 'iframe',\n 'noembed',\n 'noframes',\n 'plaintext',\n 'noscript'\n ]);\n\n function getOuterHTML(node, parentNode) {\n switch (node.nodeType) {\n case Node.ELEMENT_NODE:\n var tagName = node.tagName.toLowerCase();\n var s = '<' + tagName;\n var attrs = node.attributes;\n for (var i = 0, attr; attr = attrs[i]; i++) {\n s += ' ' + attr.name + '=\"' + escapeAttr(attr.value) + '\"';\n }\n s += '>';\n if (voidElements[tagName])\n return s;\n\n return s + getInnerHTML(node) + '</' + tagName + '>';\n\n case Node.TEXT_NODE:\n var data = node.data;\n if (parentNode && plaintextParents[parentNode.localName])\n return data;\n return escapeData(data);\n\n case Node.COMMENT_NODE:\n return '<!--' + node.data + '-->';\n\n default:\n console.error(node);\n throw new Error('not implemented');\n }\n }\n\n function getInnerHTML(node) {\n if (node instanceof wrappers.HTMLTemplateElement)\n node = node.content;\n\n var s = '';\n for (var child = node.firstChild; child; child = child.nextSibling) {\n s += getOuterHTML(child, node);\n }\n return s;\n }\n\n function setInnerHTML(node, value, opt_tagName) {\n var tagName = opt_tagName || 'div';\n node.textContent = '';\n var tempElement = unwrap(node.ownerDocument.createElement(tagName));\n tempElement.innerHTML = value;\n var firstChild;\n while (firstChild = tempElement.firstChild) {\n node.appendChild(wrap(firstChild));\n }\n }\n\n // IE11 does not have MSIE in the user agent string.\n var oldIe = /MSIE/.test(navigator.userAgent);\n\n var OriginalHTMLElement = window.HTMLElement;\n var OriginalHTMLTemplateElement = window.HTMLTemplateElement;\n\n function HTMLElement(node) {\n Element.call(this, node);\n }\n HTMLElement.prototype = Object.create(Element.prototype);\n mixin(HTMLElement.prototype, {\n get innerHTML() {\n return getInnerHTML(this);\n },\n set innerHTML(value) {\n // IE9 does not handle set innerHTML correctly on plaintextParents. It\n // creates element children. For example\n //\n // scriptElement.innerHTML = '<a>test</a>'\n //\n // Creates a single HTMLAnchorElement child.\n if (oldIe && plaintextParents[this.localName]) {\n this.textContent = value;\n return;\n }\n\n var removedNodes = snapshotNodeList(this.childNodes);\n\n if (this.invalidateShadowRenderer()) {\n if (this instanceof wrappers.HTMLTemplateElement)\n setInnerHTML(this.content, value);\n else\n setInnerHTML(this, value, this.tagName);\n\n // If we have a non native template element we need to handle this\n // manually since setting impl.innerHTML would add the html as direct\n // children and not be moved over to the content fragment.\n } else if (!OriginalHTMLTemplateElement &&\n this instanceof wrappers.HTMLTemplateElement) {\n setInnerHTML(this.content, value);\n } else {\n this.impl.innerHTML = value;\n }\n\n var addedNodes = snapshotNodeList(this.childNodes);\n\n enqueueMutation(this, 'childList', {\n addedNodes: addedNodes,\n removedNodes: removedNodes\n });\n\n nodesWereRemoved(removedNodes);\n nodesWereAdded(addedNodes, this);\n },\n\n get outerHTML() {\n return getOuterHTML(this, this.parentNode);\n },\n set outerHTML(value) {\n var p = this.parentNode;\n if (p) {\n p.invalidateShadowRenderer();\n var df = frag(p, value);\n p.replaceChild(df, this);\n }\n },\n\n insertAdjacentHTML: function(position, text) {\n var contextElement, refNode;\n switch (String(position).toLowerCase()) {\n case 'beforebegin':\n contextElement = this.parentNode;\n refNode = this;\n break;\n case 'afterend':\n contextElement = this.parentNode;\n refNode = this.nextSibling;\n break;\n case 'afterbegin':\n contextElement = this;\n refNode = this.firstChild;\n break;\n case 'beforeend':\n contextElement = this;\n refNode = null;\n break;\n default:\n return;\n }\n\n var df = frag(contextElement, text);\n contextElement.insertBefore(df, refNode);\n }\n });\n\n function frag(contextElement, html) {\n // TODO(arv): This does not work with SVG and other non HTML elements.\n var p = unwrap(contextElement.cloneNode(false));\n p.innerHTML = html;\n var df = unwrap(document.createDocumentFragment());\n var c;\n while (c = p.firstChild) {\n df.appendChild(c);\n }\n return wrap(df);\n }\n\n function getter(name) {\n return function() {\n scope.renderAllPending();\n return this.impl[name];\n };\n }\n\n function getterRequiresRendering(name) {\n defineGetter(HTMLElement, name, getter(name));\n }\n\n [\n 'clientHeight',\n 'clientLeft',\n 'clientTop',\n 'clientWidth',\n 'offsetHeight',\n 'offsetLeft',\n 'offsetTop',\n 'offsetWidth',\n 'scrollHeight',\n 'scrollWidth',\n ].forEach(getterRequiresRendering);\n\n function getterAndSetterRequiresRendering(name) {\n Object.defineProperty(HTMLElement.prototype, name, {\n get: getter(name),\n set: function(v) {\n scope.renderAllPending();\n this.impl[name] = v;\n },\n configurable: true,\n enumerable: true\n });\n }\n\n [\n 'scrollLeft',\n 'scrollTop',\n ].forEach(getterAndSetterRequiresRendering);\n\n function methodRequiresRendering(name) {\n Object.defineProperty(HTMLElement.prototype, name, {\n value: function() {\n scope.renderAllPending();\n return this.impl[name].apply(this.impl, arguments);\n },\n configurable: true,\n enumerable: true\n });\n }\n\n [\n 'getBoundingClientRect',\n 'getClientRects',\n 'scrollIntoView'\n ].forEach(methodRequiresRendering);\n\n // HTMLElement is abstract so we use a subclass that has no members.\n registerWrapper(OriginalHTMLElement, HTMLElement,\n document.createElement('b'));\n\n scope.wrappers.HTMLElement = HTMLElement;\n\n // TODO: Find a better way to share these two with WrapperShadowRoot.\n scope.getInnerHTML = getInnerHTML;\n scope.setInnerHTML = setInnerHTML\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var HTMLElement = scope.wrappers.HTMLElement;\n var mixin = scope.mixin;\n var registerWrapper = scope.registerWrapper;\n var wrap = scope.wrap;\n\n var OriginalHTMLCanvasElement = window.HTMLCanvasElement;\n\n function HTMLCanvasElement(node) {\n HTMLElement.call(this, node);\n }\n HTMLCanvasElement.prototype = Object.create(HTMLElement.prototype);\n\n mixin(HTMLCanvasElement.prototype, {\n getContext: function() {\n var context = this.impl.getContext.apply(this.impl, arguments);\n return context && wrap(context);\n }\n });\n\n registerWrapper(OriginalHTMLCanvasElement, HTMLCanvasElement,\n document.createElement('canvas'));\n\n scope.wrappers.HTMLCanvasElement = HTMLCanvasElement;\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var HTMLElement = scope.wrappers.HTMLElement;\n var mixin = scope.mixin;\n var registerWrapper = scope.registerWrapper;\n\n var OriginalHTMLContentElement = window.HTMLContentElement;\n\n function HTMLContentElement(node) {\n HTMLElement.call(this, node);\n }\n HTMLContentElement.prototype = Object.create(HTMLElement.prototype);\n mixin(HTMLContentElement.prototype, {\n get select() {\n return this.getAttribute('select');\n },\n set select(value) {\n this.setAttribute('select', value);\n },\n\n setAttribute: function(n, v) {\n HTMLElement.prototype.setAttribute.call(this, n, v);\n if (String(n).toLowerCase() === 'select')\n this.invalidateShadowRenderer(true);\n }\n\n // getDistributedNodes is added in ShadowRenderer\n\n // TODO: attribute boolean resetStyleInheritance;\n });\n\n if (OriginalHTMLContentElement)\n registerWrapper(OriginalHTMLContentElement, HTMLContentElement);\n\n scope.wrappers.HTMLContentElement = HTMLContentElement;\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var HTMLElement = scope.wrappers.HTMLElement;\n var registerWrapper = scope.registerWrapper;\n var unwrap = scope.unwrap;\n var rewrap = scope.rewrap;\n\n var OriginalHTMLImageElement = window.HTMLImageElement;\n\n function HTMLImageElement(node) {\n HTMLElement.call(this, node);\n }\n HTMLImageElement.prototype = Object.create(HTMLElement.prototype);\n\n registerWrapper(OriginalHTMLImageElement, HTMLImageElement,\n document.createElement('img'));\n\n function Image(width, height) {\n if (!(this instanceof Image)) {\n throw new TypeError(\n 'DOM object constructor cannot be called as a function.');\n }\n\n var node = unwrap(document.createElement('img'));\n HTMLElement.call(this, node);\n rewrap(node, this);\n\n if (width !== undefined)\n node.width = width;\n if (height !== undefined)\n node.height = height;\n }\n\n Image.prototype = HTMLImageElement.prototype;\n\n scope.wrappers.HTMLImageElement = HTMLImageElement;\n scope.wrappers.Image = Image;\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var HTMLElement = scope.wrappers.HTMLElement;\n var mixin = scope.mixin;\n var registerWrapper = scope.registerWrapper;\n\n var OriginalHTMLShadowElement = window.HTMLShadowElement;\n\n function HTMLShadowElement(node) {\n HTMLElement.call(this, node);\n }\n HTMLShadowElement.prototype = Object.create(HTMLElement.prototype);\n mixin(HTMLShadowElement.prototype, {\n // TODO: attribute boolean resetStyleInheritance;\n });\n\n if (OriginalHTMLShadowElement)\n registerWrapper(OriginalHTMLShadowElement, HTMLShadowElement);\n\n scope.wrappers.HTMLShadowElement = HTMLShadowElement;\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var HTMLElement = scope.wrappers.HTMLElement;\n var mixin = scope.mixin;\n var registerWrapper = scope.registerWrapper;\n var unwrap = scope.unwrap;\n var wrap = scope.wrap;\n\n var contentTable = new WeakMap();\n var templateContentsOwnerTable = new WeakMap();\n\n // http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/templates/index.html#dfn-template-contents-owner\n function getTemplateContentsOwner(doc) {\n if (!doc.defaultView)\n return doc;\n var d = templateContentsOwnerTable.get(doc);\n if (!d) {\n // TODO(arv): This should either be a Document or HTMLDocument depending\n // on doc.\n d = doc.implementation.createHTMLDocument('');\n while (d.lastChild) {\n d.removeChild(d.lastChild);\n }\n templateContentsOwnerTable.set(doc, d);\n }\n return d;\n }\n\n function extractContent(templateElement) {\n // templateElement is not a wrapper here.\n var doc = getTemplateContentsOwner(templateElement.ownerDocument);\n var df = unwrap(doc.createDocumentFragment());\n var child;\n while (child = templateElement.firstChild) {\n df.appendChild(child);\n }\n return df;\n }\n\n var OriginalHTMLTemplateElement = window.HTMLTemplateElement;\n\n function HTMLTemplateElement(node) {\n HTMLElement.call(this, node);\n if (!OriginalHTMLTemplateElement) {\n var content = extractContent(node);\n contentTable.set(this, wrap(content));\n }\n }\n HTMLTemplateElement.prototype = Object.create(HTMLElement.prototype);\n\n mixin(HTMLTemplateElement.prototype, {\n get content() {\n if (OriginalHTMLTemplateElement)\n return wrap(this.impl.content);\n return contentTable.get(this);\n },\n\n // TODO(arv): cloneNode needs to clone content.\n\n });\n\n if (OriginalHTMLTemplateElement)\n registerWrapper(OriginalHTMLTemplateElement, HTMLTemplateElement);\n\n scope.wrappers.HTMLTemplateElement = HTMLTemplateElement;\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var HTMLElement = scope.wrappers.HTMLElement;\n var registerWrapper = scope.registerWrapper;\n\n var OriginalHTMLMediaElement = window.HTMLMediaElement;\n\n function HTMLMediaElement(node) {\n HTMLElement.call(this, node);\n }\n HTMLMediaElement.prototype = Object.create(HTMLElement.prototype);\n\n registerWrapper(OriginalHTMLMediaElement, HTMLMediaElement,\n document.createElement('audio'));\n\n scope.wrappers.HTMLMediaElement = HTMLMediaElement;\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var HTMLMediaElement = scope.wrappers.HTMLMediaElement;\n var registerWrapper = scope.registerWrapper;\n var unwrap = scope.unwrap;\n var rewrap = scope.rewrap;\n\n var OriginalHTMLAudioElement = window.HTMLAudioElement;\n\n function HTMLAudioElement(node) {\n HTMLMediaElement.call(this, node);\n }\n HTMLAudioElement.prototype = Object.create(HTMLMediaElement.prototype);\n\n registerWrapper(OriginalHTMLAudioElement, HTMLAudioElement,\n document.createElement('audio'));\n\n function Audio(src) {\n if (!(this instanceof Audio)) {\n throw new TypeError(\n 'DOM object constructor cannot be called as a function.');\n }\n\n var node = unwrap(document.createElement('audio'));\n HTMLMediaElement.call(this, node);\n rewrap(node, this);\n\n node.setAttribute('preload', 'auto');\n if (src !== undefined)\n node.setAttribute('src', src);\n }\n\n Audio.prototype = HTMLAudioElement.prototype;\n\n scope.wrappers.HTMLAudioElement = HTMLAudioElement;\n scope.wrappers.Audio = Audio;\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var HTMLElement = scope.wrappers.HTMLElement;\n var mixin = scope.mixin;\n var registerWrapper = scope.registerWrapper;\n var rewrap = scope.rewrap;\n var unwrap = scope.unwrap;\n var wrap = scope.wrap;\n\n var OriginalHTMLOptionElement = window.HTMLOptionElement;\n\n function trimText(s) {\n return s.replace(/\\s+/g, ' ').trim();\n }\n\n function HTMLOptionElement(node) {\n HTMLElement.call(this, node);\n }\n HTMLOptionElement.prototype = Object.create(HTMLElement.prototype);\n mixin(HTMLOptionElement.prototype, {\n get text() {\n return trimText(this.textContent);\n },\n set text(value) {\n this.textContent = trimText(String(value));\n },\n get form() {\n return wrap(unwrap(this).form);\n }\n });\n\n registerWrapper(OriginalHTMLOptionElement, HTMLOptionElement,\n document.createElement('option'));\n\n function Option(text, value, defaultSelected, selected) {\n if (!(this instanceof Option)) {\n throw new TypeError(\n 'DOM object constructor cannot be called as a function.');\n }\n\n var node = unwrap(document.createElement('option'));\n HTMLElement.call(this, node);\n rewrap(node, this);\n\n if (text !== undefined)\n node.text = text;\n if (value !== undefined)\n node.setAttribute('value', value);\n if (defaultSelected === true)\n node.setAttribute('selected', '');\n node.selected = selected === true;\n }\n\n Option.prototype = HTMLOptionElement.prototype;\n\n scope.wrappers.HTMLOptionElement = HTMLOptionElement;\n scope.wrappers.Option = Option;\n})(window.ShadowDOMPolyfill);\n","// Copyright 2014 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var HTMLElement = scope.wrappers.HTMLElement;\n var mixin = scope.mixin;\n var registerWrapper = scope.registerWrapper;\n var unwrap = scope.unwrap;\n var wrap = scope.wrap;\n\n var OriginalHTMLSelectElement = window.HTMLSelectElement;\n\n function HTMLSelectElement(node) {\n HTMLElement.call(this, node);\n }\n HTMLSelectElement.prototype = Object.create(HTMLElement.prototype);\n mixin(HTMLSelectElement.prototype, {\n add: function(element, before) {\n if (typeof before === 'object') // also includes null\n before = unwrap(before);\n unwrap(this).add(unwrap(element), before);\n },\n\n remove: function(indexOrNode) {\n // Spec only allows index but implementations allow index or node.\n // remove() is also allowed which is same as remove(undefined)\n if (indexOrNode === undefined) {\n HTMLElement.prototype.remove.call(this);\n return;\n }\n\n if (typeof indexOrNode === 'object')\n indexOrNode = unwrap(indexOrNode);\n\n unwrap(this).remove(indexOrNode);\n },\n\n get form() {\n return wrap(unwrap(this).form);\n }\n });\n\n registerWrapper(OriginalHTMLSelectElement, HTMLSelectElement,\n document.createElement('select'));\n\n scope.wrappers.HTMLSelectElement = HTMLSelectElement;\n})(window.ShadowDOMPolyfill);\n","/*\n * Copyright 2014 The Polymer Authors. All rights reserved.\n * Use of this source code is goverened by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n(function(scope) {\n 'use strict';\n\n var HTMLElement = scope.wrappers.HTMLElement;\n var mixin = scope.mixin;\n var registerWrapper = scope.registerWrapper;\n var unwrap = scope.unwrap;\n var wrap = scope.wrap;\n var wrapHTMLCollection = scope.wrapHTMLCollection;\n\n var OriginalHTMLTableElement = window.HTMLTableElement;\n\n function HTMLTableElement(node) {\n HTMLElement.call(this, node);\n }\n HTMLTableElement.prototype = Object.create(HTMLElement.prototype);\n mixin(HTMLTableElement.prototype, {\n get caption() {\n return wrap(unwrap(this).caption);\n },\n createCaption: function() {\n return wrap(unwrap(this).createCaption());\n },\n\n get tHead() {\n return wrap(unwrap(this).tHead);\n },\n createTHead: function() {\n return wrap(unwrap(this).createTHead());\n },\n\n createTFoot: function() {\n return wrap(unwrap(this).createTFoot());\n },\n get tFoot() {\n return wrap(unwrap(this).tFoot);\n },\n\n get tBodies() {\n return wrapHTMLCollection(unwrap(this).tBodies);\n },\n createTBody: function() {\n return wrap(unwrap(this).createTBody());\n },\n\n get rows() {\n return wrapHTMLCollection(unwrap(this).rows);\n },\n insertRow: function(index) {\n return wrap(unwrap(this).insertRow(index));\n }\n });\n\n registerWrapper(OriginalHTMLTableElement, HTMLTableElement,\n document.createElement('table'));\n\n scope.wrappers.HTMLTableElement = HTMLTableElement;\n})(window.ShadowDOMPolyfill);\n","/*\n * Copyright 2014 The Polymer Authors. All rights reserved.\n * Use of this source code is goverened by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n(function(scope) {\n 'use strict';\n\n var HTMLElement = scope.wrappers.HTMLElement;\n var mixin = scope.mixin;\n var registerWrapper = scope.registerWrapper;\n var wrapHTMLCollection = scope.wrapHTMLCollection;\n var unwrap = scope.unwrap;\n var wrap = scope.wrap;\n\n var OriginalHTMLTableSectionElement = window.HTMLTableSectionElement;\n\n function HTMLTableSectionElement(node) {\n HTMLElement.call(this, node);\n }\n HTMLTableSectionElement.prototype = Object.create(HTMLElement.prototype);\n mixin(HTMLTableSectionElement.prototype, {\n get rows() {\n return wrapHTMLCollection(unwrap(this).rows);\n },\n insertRow: function(index) {\n return wrap(unwrap(this).insertRow(index));\n }\n });\n\n registerWrapper(OriginalHTMLTableSectionElement, HTMLTableSectionElement,\n document.createElement('thead'));\n\n scope.wrappers.HTMLTableSectionElement = HTMLTableSectionElement;\n})(window.ShadowDOMPolyfill);\n","/*\n * Copyright 2014 The Polymer Authors. All rights reserved.\n * Use of this source code is goverened by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n(function(scope) {\n 'use strict';\n\n var HTMLElement = scope.wrappers.HTMLElement;\n var mixin = scope.mixin;\n var registerWrapper = scope.registerWrapper;\n var wrapHTMLCollection = scope.wrapHTMLCollection;\n var unwrap = scope.unwrap;\n var wrap = scope.wrap;\n\n var OriginalHTMLTableRowElement = window.HTMLTableRowElement;\n\n function HTMLTableRowElement(node) {\n HTMLElement.call(this, node);\n }\n HTMLTableRowElement.prototype = Object.create(HTMLElement.prototype);\n mixin(HTMLTableRowElement.prototype, {\n get cells() {\n return wrapHTMLCollection(unwrap(this).cells);\n },\n\n insertCell: function(index) {\n return wrap(unwrap(this).insertCell(index));\n }\n });\n\n registerWrapper(OriginalHTMLTableRowElement, HTMLTableRowElement,\n document.createElement('tr'));\n\n scope.wrappers.HTMLTableRowElement = HTMLTableRowElement;\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var HTMLContentElement = scope.wrappers.HTMLContentElement;\n var HTMLElement = scope.wrappers.HTMLElement;\n var HTMLShadowElement = scope.wrappers.HTMLShadowElement;\n var HTMLTemplateElement = scope.wrappers.HTMLTemplateElement;\n var mixin = scope.mixin;\n var registerWrapper = scope.registerWrapper;\n\n var OriginalHTMLUnknownElement = window.HTMLUnknownElement;\n\n function HTMLUnknownElement(node) {\n switch (node.localName) {\n case 'content':\n return new HTMLContentElement(node);\n case 'shadow':\n return new HTMLShadowElement(node);\n case 'template':\n return new HTMLTemplateElement(node);\n }\n HTMLElement.call(this, node);\n }\n HTMLUnknownElement.prototype = Object.create(HTMLElement.prototype);\n registerWrapper(OriginalHTMLUnknownElement, HTMLUnknownElement);\n scope.wrappers.HTMLUnknownElement = HTMLUnknownElement;\n})(window.ShadowDOMPolyfill);\n","// Copyright 2014 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var registerObject = scope.registerObject;\n\n var SVG_NS = 'http://www.w3.org/2000/svg';\n var svgTitleElement = document.createElementNS(SVG_NS, 'title');\n var SVGTitleElement = registerObject(svgTitleElement);\n var SVGElement = Object.getPrototypeOf(SVGTitleElement.prototype).constructor;\n\n scope.wrappers.SVGElement = SVGElement;\n})(window.ShadowDOMPolyfill);\n","// Copyright 2014 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var mixin = scope.mixin;\n var registerWrapper = scope.registerWrapper;\n var unwrap = scope.unwrap;\n var wrap = scope.wrap;\n\n var OriginalSVGUseElement = window.SVGUseElement;\n\n // IE uses SVGElement as parent interface, SVG2 (Blink & Gecko) uses\n // SVGGraphicsElement. Use the <g> element to get the right prototype.\n\n var SVG_NS = 'http://www.w3.org/2000/svg';\n var gWrapper = wrap(document.createElementNS(SVG_NS, 'g'));\n var useElement = document.createElementNS(SVG_NS, 'use');\n var SVGGElement = gWrapper.constructor;\n var parentInterfacePrototype = Object.getPrototypeOf(SVGGElement.prototype);\n var parentInterface = parentInterfacePrototype.constructor;\n\n function SVGUseElement(impl) {\n parentInterface.call(this, impl);\n }\n\n SVGUseElement.prototype = Object.create(parentInterfacePrototype);\n\n // Firefox does not expose instanceRoot.\n if ('instanceRoot' in useElement) {\n mixin(SVGUseElement.prototype, {\n get instanceRoot() {\n return wrap(unwrap(this).instanceRoot);\n },\n get animatedInstanceRoot() {\n return wrap(unwrap(this).animatedInstanceRoot);\n },\n });\n }\n\n registerWrapper(OriginalSVGUseElement, SVGUseElement, useElement);\n\n scope.wrappers.SVGUseElement = SVGUseElement;\n})(window.ShadowDOMPolyfill);\n","// Copyright 2014 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var EventTarget = scope.wrappers.EventTarget;\n var mixin = scope.mixin;\n var registerWrapper = scope.registerWrapper;\n var wrap = scope.wrap;\n\n var OriginalSVGElementInstance = window.SVGElementInstance;\n if (!OriginalSVGElementInstance)\n return;\n\n function SVGElementInstance(impl) {\n EventTarget.call(this, impl);\n }\n\n SVGElementInstance.prototype = Object.create(EventTarget.prototype);\n mixin(SVGElementInstance.prototype, {\n /** @type {SVGElement} */\n get correspondingElement() {\n return wrap(this.impl.correspondingElement);\n },\n\n /** @type {SVGUseElement} */\n get correspondingUseElement() {\n return wrap(this.impl.correspondingUseElement);\n },\n\n /** @type {SVGElementInstance} */\n get parentNode() {\n return wrap(this.impl.parentNode);\n },\n\n /** @type {SVGElementInstanceList} */\n get childNodes() {\n throw new Error('Not implemented');\n },\n\n /** @type {SVGElementInstance} */\n get firstChild() {\n return wrap(this.impl.firstChild);\n },\n\n /** @type {SVGElementInstance} */\n get lastChild() {\n return wrap(this.impl.lastChild);\n },\n\n /** @type {SVGElementInstance} */\n get previousSibling() {\n return wrap(this.impl.previousSibling);\n },\n\n /** @type {SVGElementInstance} */\n get nextSibling() {\n return wrap(this.impl.nextSibling);\n }\n });\n\n registerWrapper(OriginalSVGElementInstance, SVGElementInstance);\n\n scope.wrappers.SVGElementInstance = SVGElementInstance;\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var mixin = scope.mixin;\n var registerWrapper = scope.registerWrapper;\n var unwrap = scope.unwrap;\n var unwrapIfNeeded = scope.unwrapIfNeeded;\n var wrap = scope.wrap;\n\n var OriginalCanvasRenderingContext2D = window.CanvasRenderingContext2D;\n\n function CanvasRenderingContext2D(impl) {\n this.impl = impl;\n }\n\n mixin(CanvasRenderingContext2D.prototype, {\n get canvas() {\n return wrap(this.impl.canvas);\n },\n\n drawImage: function() {\n arguments[0] = unwrapIfNeeded(arguments[0]);\n this.impl.drawImage.apply(this.impl, arguments);\n },\n\n createPattern: function() {\n arguments[0] = unwrap(arguments[0]);\n return this.impl.createPattern.apply(this.impl, arguments);\n }\n });\n\n registerWrapper(OriginalCanvasRenderingContext2D, CanvasRenderingContext2D,\n document.createElement('canvas').getContext('2d'));\n\n scope.wrappers.CanvasRenderingContext2D = CanvasRenderingContext2D;\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var mixin = scope.mixin;\n var registerWrapper = scope.registerWrapper;\n var unwrapIfNeeded = scope.unwrapIfNeeded;\n var wrap = scope.wrap;\n\n var OriginalWebGLRenderingContext = window.WebGLRenderingContext;\n\n // IE10 does not have WebGL.\n if (!OriginalWebGLRenderingContext)\n return;\n\n function WebGLRenderingContext(impl) {\n this.impl = impl;\n }\n\n mixin(WebGLRenderingContext.prototype, {\n get canvas() {\n return wrap(this.impl.canvas);\n },\n\n texImage2D: function() {\n arguments[5] = unwrapIfNeeded(arguments[5]);\n this.impl.texImage2D.apply(this.impl, arguments);\n },\n\n texSubImage2D: function() {\n arguments[6] = unwrapIfNeeded(arguments[6]);\n this.impl.texSubImage2D.apply(this.impl, arguments);\n }\n });\n\n // Blink/WebKit has broken DOM bindings. Usually we would create an instance\n // of the object and pass it into registerWrapper as a \"blueprint\" but\n // creating WebGL contexts is expensive and might fail so we use a dummy\n // object with dummy instance properties for these broken browsers.\n var instanceProperties = /WebKit/.test(navigator.userAgent) ?\n {drawingBufferHeight: null, drawingBufferWidth: null} : {};\n\n registerWrapper(OriginalWebGLRenderingContext, WebGLRenderingContext,\n instanceProperties);\n\n scope.wrappers.WebGLRenderingContext = WebGLRenderingContext;\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var registerWrapper = scope.registerWrapper;\n var unwrap = scope.unwrap;\n var unwrapIfNeeded = scope.unwrapIfNeeded;\n var wrap = scope.wrap;\n\n var OriginalRange = window.Range;\n\n function Range(impl) {\n this.impl = impl;\n }\n Range.prototype = {\n get startContainer() {\n return wrap(this.impl.startContainer);\n },\n get endContainer() {\n return wrap(this.impl.endContainer);\n },\n get commonAncestorContainer() {\n return wrap(this.impl.commonAncestorContainer);\n },\n setStart: function(refNode,offset) {\n this.impl.setStart(unwrapIfNeeded(refNode), offset);\n },\n setEnd: function(refNode,offset) {\n this.impl.setEnd(unwrapIfNeeded(refNode), offset);\n },\n setStartBefore: function(refNode) {\n this.impl.setStartBefore(unwrapIfNeeded(refNode));\n },\n setStartAfter: function(refNode) {\n this.impl.setStartAfter(unwrapIfNeeded(refNode));\n },\n setEndBefore: function(refNode) {\n this.impl.setEndBefore(unwrapIfNeeded(refNode));\n },\n setEndAfter: function(refNode) {\n this.impl.setEndAfter(unwrapIfNeeded(refNode));\n },\n selectNode: function(refNode) {\n this.impl.selectNode(unwrapIfNeeded(refNode));\n },\n selectNodeContents: function(refNode) {\n this.impl.selectNodeContents(unwrapIfNeeded(refNode));\n },\n compareBoundaryPoints: function(how, sourceRange) {\n return this.impl.compareBoundaryPoints(how, unwrap(sourceRange));\n },\n extractContents: function() {\n return wrap(this.impl.extractContents());\n },\n cloneContents: function() {\n return wrap(this.impl.cloneContents());\n },\n insertNode: function(node) {\n this.impl.insertNode(unwrapIfNeeded(node));\n },\n surroundContents: function(newParent) {\n this.impl.surroundContents(unwrapIfNeeded(newParent));\n },\n cloneRange: function() {\n return wrap(this.impl.cloneRange());\n },\n isPointInRange: function(node, offset) {\n return this.impl.isPointInRange(unwrapIfNeeded(node), offset);\n },\n comparePoint: function(node, offset) {\n return this.impl.comparePoint(unwrapIfNeeded(node), offset);\n },\n intersectsNode: function(node) {\n return this.impl.intersectsNode(unwrapIfNeeded(node));\n },\n toString: function() {\n return this.impl.toString();\n }\n };\n\n // IE9 does not have createContextualFragment.\n if (OriginalRange.prototype.createContextualFragment) {\n Range.prototype.createContextualFragment = function(html) {\n return wrap(this.impl.createContextualFragment(html));\n };\n }\n\n registerWrapper(window.Range, Range, document.createRange());\n\n scope.wrappers.Range = Range;\n\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var GetElementsByInterface = scope.GetElementsByInterface;\n var ParentNodeInterface = scope.ParentNodeInterface;\n var SelectorsInterface = scope.SelectorsInterface;\n var mixin = scope.mixin;\n var registerObject = scope.registerObject;\n\n var DocumentFragment = registerObject(document.createDocumentFragment());\n mixin(DocumentFragment.prototype, ParentNodeInterface);\n mixin(DocumentFragment.prototype, SelectorsInterface);\n mixin(DocumentFragment.prototype, GetElementsByInterface);\n\n var Comment = registerObject(document.createComment(''));\n\n scope.wrappers.Comment = Comment;\n scope.wrappers.DocumentFragment = DocumentFragment;\n\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var DocumentFragment = scope.wrappers.DocumentFragment;\n var TreeScope = scope.TreeScope;\n var elementFromPoint = scope.elementFromPoint;\n var getInnerHTML = scope.getInnerHTML;\n var getTreeScope = scope.getTreeScope;\n var mixin = scope.mixin;\n var rewrap = scope.rewrap;\n var setInnerHTML = scope.setInnerHTML;\n var unwrap = scope.unwrap;\n\n var shadowHostTable = new WeakMap();\n var nextOlderShadowTreeTable = new WeakMap();\n\n var spaceCharRe = /[ \\t\\n\\r\\f]/;\n\n function ShadowRoot(hostWrapper) {\n var node = unwrap(hostWrapper.impl.ownerDocument.createDocumentFragment());\n DocumentFragment.call(this, node);\n\n // createDocumentFragment associates the node with a wrapper\n // DocumentFragment instance. Override that.\n rewrap(node, this);\n\n this.treeScope_ = new TreeScope(this, getTreeScope(hostWrapper));\n\n var oldShadowRoot = hostWrapper.shadowRoot;\n nextOlderShadowTreeTable.set(this, oldShadowRoot);\n\n shadowHostTable.set(this, hostWrapper);\n }\n ShadowRoot.prototype = Object.create(DocumentFragment.prototype);\n mixin(ShadowRoot.prototype, {\n get innerHTML() {\n return getInnerHTML(this);\n },\n set innerHTML(value) {\n setInnerHTML(this, value);\n this.invalidateShadowRenderer();\n },\n\n get olderShadowRoot() {\n return nextOlderShadowTreeTable.get(this) || null;\n },\n\n get host() {\n return shadowHostTable.get(this) || null;\n },\n\n invalidateShadowRenderer: function() {\n return shadowHostTable.get(this).invalidateShadowRenderer();\n },\n\n elementFromPoint: function(x, y) {\n return elementFromPoint(this, this.ownerDocument, x, y);\n },\n\n getElementById: function(id) {\n if (spaceCharRe.test(id))\n return null;\n return this.querySelector('[id=\"' + id + '\"]');\n }\n });\n\n scope.wrappers.ShadowRoot = ShadowRoot;\n\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is governed by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var Element = scope.wrappers.Element;\n var HTMLContentElement = scope.wrappers.HTMLContentElement;\n var HTMLShadowElement = scope.wrappers.HTMLShadowElement;\n var Node = scope.wrappers.Node;\n var ShadowRoot = scope.wrappers.ShadowRoot;\n var assert = scope.assert;\n var getTreeScope = scope.getTreeScope;\n var mixin = scope.mixin;\n var oneOf = scope.oneOf;\n var unwrap = scope.unwrap;\n var wrap = scope.wrap;\n\n /**\n * Updates the fields of a wrapper to a snapshot of the logical DOM as needed.\n * Up means parentNode\n * Sideways means previous and next sibling.\n * @param {!Node} wrapper\n */\n function updateWrapperUpAndSideways(wrapper) {\n wrapper.previousSibling_ = wrapper.previousSibling;\n wrapper.nextSibling_ = wrapper.nextSibling;\n wrapper.parentNode_ = wrapper.parentNode;\n }\n\n /**\n * Updates the fields of a wrapper to a snapshot of the logical DOM as needed.\n * Down means first and last child\n * @param {!Node} wrapper\n */\n function updateWrapperDown(wrapper) {\n wrapper.firstChild_ = wrapper.firstChild;\n wrapper.lastChild_ = wrapper.lastChild;\n }\n\n function updateAllChildNodes(parentNodeWrapper) {\n assert(parentNodeWrapper instanceof Node);\n for (var childWrapper = parentNodeWrapper.firstChild;\n childWrapper;\n childWrapper = childWrapper.nextSibling) {\n updateWrapperUpAndSideways(childWrapper);\n }\n updateWrapperDown(parentNodeWrapper);\n }\n\n function insertBefore(parentNodeWrapper, newChildWrapper, refChildWrapper) {\n var parentNode = unwrap(parentNodeWrapper);\n var newChild = unwrap(newChildWrapper);\n var refChild = refChildWrapper ? unwrap(refChildWrapper) : null;\n\n remove(newChildWrapper);\n updateWrapperUpAndSideways(newChildWrapper);\n\n if (!refChildWrapper) {\n parentNodeWrapper.lastChild_ = parentNodeWrapper.lastChild;\n if (parentNodeWrapper.lastChild === parentNodeWrapper.firstChild)\n parentNodeWrapper.firstChild_ = parentNodeWrapper.firstChild;\n\n var lastChildWrapper = wrap(parentNode.lastChild);\n if (lastChildWrapper)\n lastChildWrapper.nextSibling_ = lastChildWrapper.nextSibling;\n } else {\n if (parentNodeWrapper.firstChild === refChildWrapper)\n parentNodeWrapper.firstChild_ = refChildWrapper;\n\n refChildWrapper.previousSibling_ = refChildWrapper.previousSibling;\n }\n\n parentNode.insertBefore(newChild, refChild);\n }\n\n function remove(nodeWrapper) {\n var node = unwrap(nodeWrapper)\n var parentNode = node.parentNode;\n if (!parentNode)\n return;\n\n var parentNodeWrapper = wrap(parentNode);\n updateWrapperUpAndSideways(nodeWrapper);\n\n if (nodeWrapper.previousSibling)\n nodeWrapper.previousSibling.nextSibling_ = nodeWrapper;\n if (nodeWrapper.nextSibling)\n nodeWrapper.nextSibling.previousSibling_ = nodeWrapper;\n\n if (parentNodeWrapper.lastChild === nodeWrapper)\n parentNodeWrapper.lastChild_ = nodeWrapper;\n if (parentNodeWrapper.firstChild === nodeWrapper)\n parentNodeWrapper.firstChild_ = nodeWrapper;\n\n parentNode.removeChild(node);\n }\n\n var distributedChildNodesTable = new WeakMap();\n var eventParentsTable = new WeakMap();\n var insertionParentTable = new WeakMap();\n var rendererForHostTable = new WeakMap();\n\n function distributeChildToInsertionPoint(child, insertionPoint) {\n getDistributedChildNodes(insertionPoint).push(child);\n assignToInsertionPoint(child, insertionPoint);\n\n var eventParents = eventParentsTable.get(child);\n if (!eventParents)\n eventParentsTable.set(child, eventParents = []);\n eventParents.push(insertionPoint);\n }\n\n function resetDistributedChildNodes(insertionPoint) {\n distributedChildNodesTable.set(insertionPoint, []);\n }\n\n function getDistributedChildNodes(insertionPoint) {\n var rv = distributedChildNodesTable.get(insertionPoint);\n if (!rv)\n distributedChildNodesTable.set(insertionPoint, rv = []);\n return rv;\n }\n\n function getChildNodesSnapshot(node) {\n var result = [], i = 0;\n for (var child = node.firstChild; child; child = child.nextSibling) {\n result[i++] = child;\n }\n return result;\n }\n\n /**\n * Visits all nodes in the tree that fulfils the |predicate|. If the |visitor|\n * function returns |false| the traversal is aborted.\n * @param {!Node} tree\n * @param {function(!Node) : boolean} predicate\n * @param {function(!Node) : *} visitor\n */\n function visit(tree, predicate, visitor) {\n // This operates on logical DOM.\n for (var node = tree.firstChild; node; node = node.nextSibling) {\n if (predicate(node)) {\n if (visitor(node) === false)\n return;\n } else {\n visit(node, predicate, visitor);\n }\n }\n }\n\n // Matching Insertion Points\n // http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#matching-insertion-points\n\n // TODO(arv): Verify this... I don't remember why I picked this regexp.\n var selectorMatchRegExp = /^[*.:#[a-zA-Z_|]/;\n\n var allowedPseudoRegExp = new RegExp('^:(' + [\n 'link',\n 'visited',\n 'target',\n 'enabled',\n 'disabled',\n 'checked',\n 'indeterminate',\n 'nth-child',\n 'nth-last-child',\n 'nth-of-type',\n 'nth-last-of-type',\n 'first-child',\n 'last-child',\n 'first-of-type',\n 'last-of-type',\n 'only-of-type',\n ].join('|') + ')');\n\n\n /**\n * @param {Element} node\n * @oaram {Element} point The insertion point element.\n * @return {boolean} Whether the node matches the insertion point.\n */\n function matchesCriteria(node, point) {\n var select = point.getAttribute('select');\n if (!select)\n return true;\n\n // Here we know the select attribute is a non empty string.\n select = select.trim();\n if (!select)\n return true;\n\n if (!(node instanceof Element))\n return false;\n\n // The native matches function in IE9 does not correctly work with elements\n // that are not in the document.\n // TODO(arv): Implement matching in JS.\n // https://github.com/Polymer/ShadowDOM/issues/361\n if (select === '*' || select === node.localName)\n return true;\n\n // TODO(arv): This does not seem right. Need to check for a simple selector.\n if (!selectorMatchRegExp.test(select))\n return false;\n\n // TODO(arv): This no longer matches the spec.\n if (select[0] === ':' && !allowedPseudoRegExp.test(select))\n return false;\n\n try {\n return node.matches(select);\n } catch (ex) {\n // Invalid selector.\n return false;\n }\n }\n\n var request = oneOf(window, [\n 'requestAnimationFrame',\n 'mozRequestAnimationFrame',\n 'webkitRequestAnimationFrame',\n 'setTimeout'\n ]);\n\n var pendingDirtyRenderers = [];\n var renderTimer;\n\n function renderAllPending() {\n // TODO(arv): Order these in document order. That way we do not have to\n // render something twice.\n for (var i = 0; i < pendingDirtyRenderers.length; i++) {\n var renderer = pendingDirtyRenderers[i];\n var parentRenderer = renderer.parentRenderer;\n if (parentRenderer && parentRenderer.dirty)\n continue;\n renderer.render();\n }\n\n pendingDirtyRenderers = [];\n }\n\n function handleRequestAnimationFrame() {\n renderTimer = null;\n renderAllPending();\n }\n\n /**\n * Returns existing shadow renderer for a host or creates it if it is needed.\n * @params {!Element} host\n * @return {!ShadowRenderer}\n */\n function getRendererForHost(host) {\n var renderer = rendererForHostTable.get(host);\n if (!renderer) {\n renderer = new ShadowRenderer(host);\n rendererForHostTable.set(host, renderer);\n }\n return renderer;\n }\n\n function getShadowRootAncestor(node) {\n var root = getTreeScope(node).root;\n if (root instanceof ShadowRoot)\n return root;\n return null;\n }\n\n function getRendererForShadowRoot(shadowRoot) {\n return getRendererForHost(shadowRoot.host);\n }\n\n var spliceDiff = new ArraySplice();\n spliceDiff.equals = function(renderNode, rawNode) {\n return unwrap(renderNode.node) === rawNode;\n };\n\n /**\n * RenderNode is used as an in memory \"render tree\". When we render the\n * composed tree we create a tree of RenderNodes, then we diff this against\n * the real DOM tree and make minimal changes as needed.\n */\n function RenderNode(node) {\n this.skip = false;\n this.node = node;\n this.childNodes = [];\n }\n\n RenderNode.prototype = {\n append: function(node) {\n var rv = new RenderNode(node);\n this.childNodes.push(rv);\n return rv;\n },\n\n sync: function(opt_added) {\n if (this.skip)\n return;\n\n var nodeWrapper = this.node;\n // plain array of RenderNodes\n var newChildren = this.childNodes;\n // plain array of real nodes.\n var oldChildren = getChildNodesSnapshot(unwrap(nodeWrapper));\n var added = opt_added || new WeakMap();\n\n var splices = spliceDiff.calculateSplices(newChildren, oldChildren);\n\n var newIndex = 0, oldIndex = 0;\n var lastIndex = 0;\n for (var i = 0; i < splices.length; i++) {\n var splice = splices[i];\n for (; lastIndex < splice.index; lastIndex++) {\n oldIndex++;\n newChildren[newIndex++].sync(added);\n }\n\n var removedCount = splice.removed.length;\n for (var j = 0; j < removedCount; j++) {\n var wrapper = wrap(oldChildren[oldIndex++]);\n if (!added.get(wrapper))\n remove(wrapper);\n }\n\n var addedCount = splice.addedCount;\n var refNode = oldChildren[oldIndex] && wrap(oldChildren[oldIndex]);\n for (var j = 0; j < addedCount; j++) {\n var newChildRenderNode = newChildren[newIndex++];\n var newChildWrapper = newChildRenderNode.node;\n insertBefore(nodeWrapper, newChildWrapper, refNode);\n\n // Keep track of added so that we do not remove the node after it\n // has been added.\n added.set(newChildWrapper, true);\n\n newChildRenderNode.sync(added);\n }\n\n lastIndex += addedCount;\n }\n\n for (var i = lastIndex; i < newChildren.length; i++) {\n newChildren[i].sync(added);\n }\n }\n };\n\n function ShadowRenderer(host) {\n this.host = host;\n this.dirty = false;\n this.invalidateAttributes();\n this.associateNode(host);\n }\n\n ShadowRenderer.prototype = {\n\n // http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#rendering-shadow-trees\n render: function(opt_renderNode) {\n if (!this.dirty)\n return;\n\n this.invalidateAttributes();\n this.treeComposition();\n\n var host = this.host;\n var shadowRoot = host.shadowRoot;\n\n this.associateNode(host);\n var topMostRenderer = !renderNode;\n var renderNode = opt_renderNode || new RenderNode(host);\n\n for (var node = shadowRoot.firstChild; node; node = node.nextSibling) {\n this.renderNode(shadowRoot, renderNode, node, false);\n }\n\n if (topMostRenderer)\n renderNode.sync();\n\n this.dirty = false;\n },\n\n get parentRenderer() {\n return getTreeScope(this.host).renderer;\n },\n\n invalidate: function() {\n if (!this.dirty) {\n this.dirty = true;\n pendingDirtyRenderers.push(this);\n if (renderTimer)\n return;\n renderTimer = window[request](handleRequestAnimationFrame, 0);\n }\n },\n\n renderNode: function(shadowRoot, renderNode, node, isNested) {\n if (isShadowHost(node)) {\n renderNode = renderNode.append(node);\n var renderer = getRendererForHost(node);\n renderer.dirty = true; // Need to rerender due to reprojection.\n renderer.render(renderNode);\n } else if (isInsertionPoint(node)) {\n this.renderInsertionPoint(shadowRoot, renderNode, node, isNested);\n } else if (isShadowInsertionPoint(node)) {\n this.renderShadowInsertionPoint(shadowRoot, renderNode, node);\n } else {\n this.renderAsAnyDomTree(shadowRoot, renderNode, node, isNested);\n }\n },\n\n renderAsAnyDomTree: function(shadowRoot, renderNode, node, isNested) {\n renderNode = renderNode.append(node);\n\n if (isShadowHost(node)) {\n var renderer = getRendererForHost(node);\n renderNode.skip = !renderer.dirty;\n renderer.render(renderNode);\n } else {\n for (var child = node.firstChild; child; child = child.nextSibling) {\n this.renderNode(shadowRoot, renderNode, child, isNested);\n }\n }\n },\n\n renderInsertionPoint: function(shadowRoot, renderNode, insertionPoint,\n isNested) {\n var distributedChildNodes = getDistributedChildNodes(insertionPoint);\n if (distributedChildNodes.length) {\n this.associateNode(insertionPoint);\n\n for (var i = 0; i < distributedChildNodes.length; i++) {\n var child = distributedChildNodes[i];\n if (isInsertionPoint(child) && isNested)\n this.renderInsertionPoint(shadowRoot, renderNode, child, isNested);\n else\n this.renderAsAnyDomTree(shadowRoot, renderNode, child, isNested);\n }\n } else {\n this.renderFallbackContent(shadowRoot, renderNode, insertionPoint);\n }\n this.associateNode(insertionPoint.parentNode);\n },\n\n renderShadowInsertionPoint: function(shadowRoot, renderNode,\n shadowInsertionPoint) {\n var nextOlderTree = shadowRoot.olderShadowRoot;\n if (nextOlderTree) {\n assignToInsertionPoint(nextOlderTree, shadowInsertionPoint);\n this.associateNode(shadowInsertionPoint.parentNode);\n for (var node = nextOlderTree.firstChild;\n node;\n node = node.nextSibling) {\n this.renderNode(nextOlderTree, renderNode, node, true);\n }\n } else {\n this.renderFallbackContent(shadowRoot, renderNode,\n shadowInsertionPoint);\n }\n },\n\n renderFallbackContent: function(shadowRoot, renderNode, fallbackHost) {\n this.associateNode(fallbackHost);\n this.associateNode(fallbackHost.parentNode);\n for (var node = fallbackHost.firstChild; node; node = node.nextSibling) {\n this.renderAsAnyDomTree(shadowRoot, renderNode, node, false);\n }\n },\n\n /**\n * Invalidates the attributes used to keep track of which attributes may\n * cause the renderer to be invalidated.\n */\n invalidateAttributes: function() {\n this.attributes = Object.create(null);\n },\n\n /**\n * Parses the selector and makes this renderer dependent on the attribute\n * being used in the selector.\n * @param {string} selector\n */\n updateDependentAttributes: function(selector) {\n if (!selector)\n return;\n\n var attributes = this.attributes;\n\n // .class\n if (/\\.\\w+/.test(selector))\n attributes['class'] = true;\n\n // #id\n if (/#\\w+/.test(selector))\n attributes['id'] = true;\n\n selector.replace(/\\[\\s*([^\\s=\\|~\\]]+)/g, function(_, name) {\n attributes[name] = true;\n });\n\n // Pseudo selectors have been removed from the spec.\n },\n\n dependsOnAttribute: function(name) {\n return this.attributes[name];\n },\n\n // http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#dfn-distribution-algorithm\n distribute: function(tree, pool) {\n var self = this;\n\n visit(tree, isActiveInsertionPoint,\n function(insertionPoint) {\n resetDistributedChildNodes(insertionPoint);\n self.updateDependentAttributes(\n insertionPoint.getAttribute('select'));\n\n for (var i = 0; i < pool.length; i++) { // 1.2\n var node = pool[i]; // 1.2.1\n if (node === undefined) // removed\n continue;\n if (matchesCriteria(node, insertionPoint)) { // 1.2.2\n distributeChildToInsertionPoint(node, insertionPoint); // 1.2.2.1\n pool[i] = undefined; // 1.2.2.2\n }\n }\n });\n },\n\n // http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#dfn-tree-composition\n treeComposition: function () {\n var shadowHost = this.host;\n var tree = shadowHost.shadowRoot; // 1.\n var pool = []; // 2.\n\n for (var child = shadowHost.firstChild;\n child;\n child = child.nextSibling) { // 3.\n if (isInsertionPoint(child)) { // 3.2.\n var reprojected = getDistributedChildNodes(child); // 3.2.1.\n // if reprojected is undef... reset it?\n if (!reprojected || !reprojected.length) // 3.2.2.\n reprojected = getChildNodesSnapshot(child);\n pool.push.apply(pool, reprojected); // 3.2.3.\n } else {\n pool.push(child); // 3.3.\n }\n }\n\n var shadowInsertionPoint, point;\n while (tree) { // 4.\n // 4.1.\n shadowInsertionPoint = undefined; // Reset every iteration.\n visit(tree, isActiveShadowInsertionPoint, function(point) {\n shadowInsertionPoint = point;\n return false;\n });\n point = shadowInsertionPoint;\n\n this.distribute(tree, pool); // 4.2.\n if (point) { // 4.3.\n var nextOlderTree = tree.olderShadowRoot; // 4.3.1.\n if (!nextOlderTree) {\n break; // 4.3.1.1.\n } else {\n tree = nextOlderTree; // 4.3.2.2.\n assignToInsertionPoint(tree, point); // 4.3.2.2.\n continue; // 4.3.2.3.\n }\n } else {\n break; // 4.4.\n }\n }\n },\n\n associateNode: function(node) {\n node.impl.polymerShadowRenderer_ = this;\n }\n };\n\n function isInsertionPoint(node) {\n // Should this include <shadow>?\n return node instanceof HTMLContentElement;\n }\n\n function isActiveInsertionPoint(node) {\n // <content> inside another <content> or <shadow> is considered inactive.\n return node instanceof HTMLContentElement;\n }\n\n function isShadowInsertionPoint(node) {\n return node instanceof HTMLShadowElement;\n }\n\n function isActiveShadowInsertionPoint(node) {\n // <shadow> inside another <content> or <shadow> is considered inactive.\n return node instanceof HTMLShadowElement;\n }\n\n function isShadowHost(shadowHost) {\n return shadowHost.shadowRoot;\n }\n\n function getShadowTrees(host) {\n var trees = [];\n\n for (var tree = host.shadowRoot; tree; tree = tree.olderShadowRoot) {\n trees.push(tree);\n }\n return trees;\n }\n\n function assignToInsertionPoint(tree, point) {\n insertionParentTable.set(tree, point);\n }\n\n // http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#rendering-shadow-trees\n function render(host) {\n new ShadowRenderer(host).render();\n };\n\n // Need to rerender shadow host when:\n //\n // - a direct child to the ShadowRoot is added or removed\n // - a direct child to the host is added or removed\n // - a new shadow root is created\n // - a direct child to a content/shadow element is added or removed\n // - a sibling to a content/shadow element is added or removed\n // - content[select] is changed\n // - an attribute in a direct child to a host is modified\n\n /**\n * This gets called when a node was added or removed to it.\n */\n Node.prototype.invalidateShadowRenderer = function(force) {\n var renderer = this.impl.polymerShadowRenderer_;\n if (renderer) {\n renderer.invalidate();\n return true;\n }\n\n return false;\n };\n\n HTMLContentElement.prototype.getDistributedNodes = function() {\n // TODO(arv): We should only rerender the dirty ancestor renderers (from\n // the root and down).\n renderAllPending();\n return getDistributedChildNodes(this);\n };\n\n HTMLShadowElement.prototype.nodeIsInserted_ =\n HTMLContentElement.prototype.nodeIsInserted_ = function() {\n // Invalidate old renderer if any.\n this.invalidateShadowRenderer();\n\n var shadowRoot = getShadowRootAncestor(this);\n var renderer;\n if (shadowRoot)\n renderer = getRendererForShadowRoot(shadowRoot);\n this.impl.polymerShadowRenderer_ = renderer;\n if (renderer)\n renderer.invalidate();\n };\n\n scope.eventParentsTable = eventParentsTable;\n scope.getRendererForHost = getRendererForHost;\n scope.getShadowTrees = getShadowTrees;\n scope.insertionParentTable = insertionParentTable;\n scope.renderAllPending = renderAllPending;\n\n // Exposed for testing\n scope.visual = {\n insertBefore: insertBefore,\n remove: remove,\n };\n\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var HTMLElement = scope.wrappers.HTMLElement;\n var assert = scope.assert;\n var mixin = scope.mixin;\n var registerWrapper = scope.registerWrapper;\n var unwrap = scope.unwrap;\n var wrap = scope.wrap;\n\n var elementsWithFormProperty = [\n 'HTMLButtonElement',\n 'HTMLFieldSetElement',\n 'HTMLInputElement',\n 'HTMLKeygenElement',\n 'HTMLLabelElement',\n 'HTMLLegendElement',\n 'HTMLObjectElement',\n // HTMLOptionElement is handled in HTMLOptionElement.js\n 'HTMLOutputElement',\n // HTMLSelectElement is handled in HTMLSelectElement.js\n 'HTMLTextAreaElement',\n ];\n\n function createWrapperConstructor(name) {\n if (!window[name])\n return;\n\n // Ensure we are not overriding an already existing constructor.\n assert(!scope.wrappers[name]);\n\n var GeneratedWrapper = function(node) {\n // At this point all of them extend HTMLElement.\n HTMLElement.call(this, node);\n }\n GeneratedWrapper.prototype = Object.create(HTMLElement.prototype);\n mixin(GeneratedWrapper.prototype, {\n get form() {\n return wrap(unwrap(this).form);\n },\n });\n\n registerWrapper(window[name], GeneratedWrapper,\n document.createElement(name.slice(4, -7)));\n scope.wrappers[name] = GeneratedWrapper;\n }\n\n elementsWithFormProperty.forEach(createWrapperConstructor);\n\n})(window.ShadowDOMPolyfill);\n","// Copyright 2014 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var registerWrapper = scope.registerWrapper;\n var unwrap = scope.unwrap;\n var unwrapIfNeeded = scope.unwrapIfNeeded;\n var wrap = scope.wrap;\n\n var OriginalSelection = window.Selection;\n\n function Selection(impl) {\n this.impl = impl;\n }\n Selection.prototype = {\n get anchorNode() {\n return wrap(this.impl.anchorNode);\n },\n get focusNode() {\n return wrap(this.impl.focusNode);\n },\n addRange: function(range) {\n this.impl.addRange(unwrap(range));\n },\n collapse: function(node, index) {\n this.impl.collapse(unwrapIfNeeded(node), index);\n },\n containsNode: function(node, allowPartial) {\n return this.impl.containsNode(unwrapIfNeeded(node), allowPartial);\n },\n extend: function(node, offset) {\n this.impl.extend(unwrapIfNeeded(node), offset);\n },\n getRangeAt: function(index) {\n return wrap(this.impl.getRangeAt(index));\n },\n removeRange: function(range) {\n this.impl.removeRange(unwrap(range));\n },\n selectAllChildren: function(node) {\n this.impl.selectAllChildren(unwrapIfNeeded(node));\n },\n toString: function() {\n return this.impl.toString();\n }\n };\n\n // WebKit extensions. Not implemented.\n // readonly attribute Node baseNode;\n // readonly attribute long baseOffset;\n // readonly attribute Node extentNode;\n // readonly attribute long extentOffset;\n // [RaisesException] void setBaseAndExtent([Default=Undefined] optional Node baseNode,\n // [Default=Undefined] optional long baseOffset,\n // [Default=Undefined] optional Node extentNode,\n // [Default=Undefined] optional long extentOffset);\n // [RaisesException, ImplementedAs=collapse] void setPosition([Default=Undefined] optional Node node,\n // [Default=Undefined] optional long offset);\n\n registerWrapper(window.Selection, Selection, window.getSelection());\n\n scope.wrappers.Selection = Selection;\n\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var GetElementsByInterface = scope.GetElementsByInterface;\n var Node = scope.wrappers.Node;\n var ParentNodeInterface = scope.ParentNodeInterface;\n var Selection = scope.wrappers.Selection;\n var SelectorsInterface = scope.SelectorsInterface;\n var ShadowRoot = scope.wrappers.ShadowRoot;\n var TreeScope = scope.TreeScope;\n var cloneNode = scope.cloneNode;\n var defineWrapGetter = scope.defineWrapGetter;\n var elementFromPoint = scope.elementFromPoint;\n var forwardMethodsToWrapper = scope.forwardMethodsToWrapper;\n var matchesNames = scope.matchesNames;\n var mixin = scope.mixin;\n var registerWrapper = scope.registerWrapper;\n var renderAllPending = scope.renderAllPending;\n var rewrap = scope.rewrap;\n var unwrap = scope.unwrap;\n var wrap = scope.wrap;\n var wrapEventTargetMethods = scope.wrapEventTargetMethods;\n var wrapNodeList = scope.wrapNodeList;\n\n var implementationTable = new WeakMap();\n\n function Document(node) {\n Node.call(this, node);\n this.treeScope_ = new TreeScope(this, null);\n }\n Document.prototype = Object.create(Node.prototype);\n\n defineWrapGetter(Document, 'documentElement');\n\n // Conceptually both body and head can be in a shadow but suporting that seems\n // overkill at this point.\n defineWrapGetter(Document, 'body');\n defineWrapGetter(Document, 'head');\n\n // document cannot be overridden so we override a bunch of its methods\n // directly on the instance.\n\n function wrapMethod(name) {\n var original = document[name];\n Document.prototype[name] = function() {\n return wrap(original.apply(this.impl, arguments));\n };\n }\n\n [\n 'createComment',\n 'createDocumentFragment',\n 'createElement',\n 'createElementNS',\n 'createEvent',\n 'createEventNS',\n 'createRange',\n 'createTextNode',\n 'getElementById'\n ].forEach(wrapMethod);\n\n var originalAdoptNode = document.adoptNode;\n\n function adoptNodeNoRemove(node, doc) {\n originalAdoptNode.call(doc.impl, unwrap(node));\n adoptSubtree(node, doc);\n }\n\n function adoptSubtree(node, doc) {\n if (node.shadowRoot)\n doc.adoptNode(node.shadowRoot);\n if (node instanceof ShadowRoot)\n adoptOlderShadowRoots(node, doc);\n for (var child = node.firstChild; child; child = child.nextSibling) {\n adoptSubtree(child, doc);\n }\n }\n\n function adoptOlderShadowRoots(shadowRoot, doc) {\n var oldShadowRoot = shadowRoot.olderShadowRoot;\n if (oldShadowRoot)\n doc.adoptNode(oldShadowRoot);\n }\n\n var originalGetSelection = document.getSelection;\n\n mixin(Document.prototype, {\n adoptNode: function(node) {\n if (node.parentNode)\n node.parentNode.removeChild(node);\n adoptNodeNoRemove(node, this);\n return node;\n },\n elementFromPoint: function(x, y) {\n return elementFromPoint(this, this, x, y);\n },\n importNode: function(node, deep) {\n return cloneNode(node, deep, this.impl);\n },\n getSelection: function() {\n renderAllPending();\n return new Selection(originalGetSelection.call(unwrap(this)));\n }\n });\n\n if (document.registerElement) {\n var originalRegisterElement = document.registerElement;\n Document.prototype.registerElement = function(tagName, object) {\n var prototype, extendsOption;\n if (object !== undefined) {\n prototype = object.prototype;\n extendsOption = object.extends;\n }\n\n if (!prototype)\n prototype = Object.create(HTMLElement.prototype);\n\n\n // If we already used the object as a prototype for another custom\n // element.\n if (scope.nativePrototypeTable.get(prototype)) {\n // TODO(arv): DOMException\n throw new Error('NotSupportedError');\n }\n\n // Find first object on the prototype chain that already have a native\n // prototype. Keep track of all the objects before that so we can create\n // a similar structure for the native case.\n var proto = Object.getPrototypeOf(prototype);\n var nativePrototype;\n var prototypes = [];\n while (proto) {\n nativePrototype = scope.nativePrototypeTable.get(proto);\n if (nativePrototype)\n break;\n prototypes.push(proto);\n proto = Object.getPrototypeOf(proto);\n }\n\n if (!nativePrototype) {\n // TODO(arv): DOMException\n throw new Error('NotSupportedError');\n }\n\n // This works by creating a new prototype object that is empty, but has\n // the native prototype as its proto. The original prototype object\n // passed into register is used as the wrapper prototype.\n\n var newPrototype = Object.create(nativePrototype);\n for (var i = prototypes.length - 1; i >= 0; i--) {\n newPrototype = Object.create(newPrototype);\n }\n\n // Add callbacks if present.\n // Names are taken from:\n // https://code.google.com/p/chromium/codesearch#chromium/src/third_party/WebKit/Source/bindings/v8/CustomElementConstructorBuilder.cpp&sq=package:chromium&type=cs&l=156\n // and not from the spec since the spec is out of date.\n [\n 'createdCallback',\n 'attachedCallback',\n 'detachedCallback',\n 'attributeChangedCallback',\n ].forEach(function(name) {\n var f = prototype[name];\n if (!f)\n return;\n newPrototype[name] = function() {\n // if this element has been wrapped prior to registration,\n // the wrapper is stale; in this case rewrap\n if (!(wrap(this) instanceof CustomElementConstructor)) {\n rewrap(this);\n }\n f.apply(wrap(this), arguments);\n };\n });\n\n var p = {prototype: newPrototype};\n if (extendsOption)\n p.extends = extendsOption;\n\n function CustomElementConstructor(node) {\n if (!node) {\n if (extendsOption) {\n return document.createElement(extendsOption, tagName);\n } else {\n return document.createElement(tagName);\n }\n }\n this.impl = node;\n }\n CustomElementConstructor.prototype = prototype;\n CustomElementConstructor.prototype.constructor = CustomElementConstructor;\n\n scope.constructorTable.set(newPrototype, CustomElementConstructor);\n scope.nativePrototypeTable.set(prototype, newPrototype);\n\n // registration is synchronous so do it last\n var nativeConstructor = originalRegisterElement.call(unwrap(this),\n tagName, p);\n return CustomElementConstructor;\n };\n\n forwardMethodsToWrapper([\n window.HTMLDocument || window.Document, // Gecko adds these to HTMLDocument\n ], [\n 'registerElement',\n ]);\n }\n\n // We also override some of the methods on document.body and document.head\n // for convenience.\n forwardMethodsToWrapper([\n window.HTMLBodyElement,\n window.HTMLDocument || window.Document, // Gecko adds these to HTMLDocument\n window.HTMLHeadElement,\n window.HTMLHtmlElement,\n ], [\n 'appendChild',\n 'compareDocumentPosition',\n 'contains',\n 'getElementsByClassName',\n 'getElementsByTagName',\n 'getElementsByTagNameNS',\n 'insertBefore',\n 'querySelector',\n 'querySelectorAll',\n 'removeChild',\n 'replaceChild',\n ].concat(matchesNames));\n\n forwardMethodsToWrapper([\n window.HTMLDocument || window.Document, // Gecko adds these to HTMLDocument\n ], [\n 'adoptNode',\n 'importNode',\n 'contains',\n 'createComment',\n 'createDocumentFragment',\n 'createElement',\n 'createElementNS',\n 'createEvent',\n 'createEventNS',\n 'createRange',\n 'createTextNode',\n 'elementFromPoint',\n 'getElementById',\n 'getSelection',\n ]);\n\n mixin(Document.prototype, GetElementsByInterface);\n mixin(Document.prototype, ParentNodeInterface);\n mixin(Document.prototype, SelectorsInterface);\n\n mixin(Document.prototype, {\n get implementation() {\n var implementation = implementationTable.get(this);\n if (implementation)\n return implementation;\n implementation =\n new DOMImplementation(unwrap(this).implementation);\n implementationTable.set(this, implementation);\n return implementation;\n }\n });\n\n registerWrapper(window.Document, Document,\n document.implementation.createHTMLDocument(''));\n\n // Both WebKit and Gecko uses HTMLDocument for document. HTML5/DOM only has\n // one Document interface and IE implements the standard correctly.\n if (window.HTMLDocument)\n registerWrapper(window.HTMLDocument, Document);\n\n wrapEventTargetMethods([\n window.HTMLBodyElement,\n window.HTMLDocument || window.Document, // Gecko adds these to HTMLDocument\n window.HTMLHeadElement,\n ]);\n\n function DOMImplementation(impl) {\n this.impl = impl;\n }\n\n function wrapImplMethod(constructor, name) {\n var original = document.implementation[name];\n constructor.prototype[name] = function() {\n return wrap(original.apply(this.impl, arguments));\n };\n }\n\n function forwardImplMethod(constructor, name) {\n var original = document.implementation[name];\n constructor.prototype[name] = function() {\n return original.apply(this.impl, arguments);\n };\n }\n\n wrapImplMethod(DOMImplementation, 'createDocumentType');\n wrapImplMethod(DOMImplementation, 'createDocument');\n wrapImplMethod(DOMImplementation, 'createHTMLDocument');\n forwardImplMethod(DOMImplementation, 'hasFeature');\n\n registerWrapper(window.DOMImplementation, DOMImplementation);\n\n forwardMethodsToWrapper([\n window.DOMImplementation,\n ], [\n 'createDocumentType',\n 'createDocument',\n 'createHTMLDocument',\n 'hasFeature',\n ]);\n\n scope.adoptNodeNoRemove = adoptNodeNoRemove;\n scope.wrappers.DOMImplementation = DOMImplementation;\n scope.wrappers.Document = Document;\n\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var EventTarget = scope.wrappers.EventTarget;\n var Selection = scope.wrappers.Selection;\n var mixin = scope.mixin;\n var registerWrapper = scope.registerWrapper;\n var renderAllPending = scope.renderAllPending;\n var unwrap = scope.unwrap;\n var unwrapIfNeeded = scope.unwrapIfNeeded;\n var wrap = scope.wrap;\n\n var OriginalWindow = window.Window;\n var originalGetComputedStyle = window.getComputedStyle;\n var originalGetSelection = window.getSelection;\n\n function Window(impl) {\n EventTarget.call(this, impl);\n }\n Window.prototype = Object.create(EventTarget.prototype);\n\n OriginalWindow.prototype.getComputedStyle = function(el, pseudo) {\n return wrap(this || window).getComputedStyle(unwrapIfNeeded(el), pseudo);\n };\n\n OriginalWindow.prototype.getSelection = function() {\n return wrap(this || window).getSelection();\n };\n\n // Work around for https://bugzilla.mozilla.org/show_bug.cgi?id=943065\n delete window.getComputedStyle;\n delete window.getSelection;\n\n ['addEventListener', 'removeEventListener', 'dispatchEvent'].forEach(\n function(name) {\n OriginalWindow.prototype[name] = function() {\n var w = wrap(this || window);\n return w[name].apply(w, arguments);\n };\n\n // Work around for https://bugzilla.mozilla.org/show_bug.cgi?id=943065\n delete window[name];\n });\n\n mixin(Window.prototype, {\n getComputedStyle: function(el, pseudo) {\n renderAllPending();\n return originalGetComputedStyle.call(unwrap(this), unwrapIfNeeded(el),\n pseudo);\n },\n getSelection: function() {\n renderAllPending();\n return new Selection(originalGetSelection.call(unwrap(this)));\n },\n });\n\n registerWrapper(OriginalWindow, Window);\n\n scope.wrappers.Window = Window;\n\n})(window.ShadowDOMPolyfill);\n","/**\n * Copyright 2014 The Polymer Authors. All rights reserved.\n * Use of this source code is goverened by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n(function(scope) {\n 'use strict';\n\n var unwrap = scope.unwrap;\n\n // DataTransfer (Clipboard in old Blink/WebKit) has a single method that\n // requires wrapping. Since it is only a method we do not need a real wrapper,\n // we can just override the method.\n\n var OriginalDataTransfer = window.DataTransfer || window.Clipboard;\n var OriginalDataTransferSetDragImage =\n OriginalDataTransfer.prototype.setDragImage;\n\n OriginalDataTransfer.prototype.setDragImage = function(image, x, y) {\n OriginalDataTransferSetDragImage.call(this, unwrap(image), x, y);\n };\n\n})(window.ShadowDOMPolyfill);\n","// Copyright 2013 The Polymer Authors. All rights reserved.\n// Use of this source code is goverened by a BSD-style\n// license that can be found in the LICENSE file.\n\n(function(scope) {\n 'use strict';\n\n var isWrapperFor = scope.isWrapperFor;\n\n // This is a list of the elements we currently override the global constructor\n // for.\n var elements = {\n 'a': 'HTMLAnchorElement',\n // Do not create an applet element by default since it shows a warning in\n // IE.\n // https://github.com/Polymer/polymer/issues/217\n // 'applet': 'HTMLAppletElement',\n 'area': 'HTMLAreaElement',\n 'audio': 'HTMLAudioElement',\n 'base': 'HTMLBaseElement',\n 'body': 'HTMLBodyElement',\n 'br': 'HTMLBRElement',\n 'button': 'HTMLButtonElement',\n 'canvas': 'HTMLCanvasElement',\n 'caption': 'HTMLTableCaptionElement',\n 'col': 'HTMLTableColElement',\n // 'command': 'HTMLCommandElement', // Not fully implemented in Gecko.\n 'content': 'HTMLContentElement',\n 'data': 'HTMLDataElement',\n 'datalist': 'HTMLDataListElement',\n 'del': 'HTMLModElement',\n 'dir': 'HTMLDirectoryElement',\n 'div': 'HTMLDivElement',\n 'dl': 'HTMLDListElement',\n 'embed': 'HTMLEmbedElement',\n 'fieldset': 'HTMLFieldSetElement',\n 'font': 'HTMLFontElement',\n 'form': 'HTMLFormElement',\n 'frame': 'HTMLFrameElement',\n 'frameset': 'HTMLFrameSetElement',\n 'h1': 'HTMLHeadingElement',\n 'head': 'HTMLHeadElement',\n 'hr': 'HTMLHRElement',\n 'html': 'HTMLHtmlElement',\n 'iframe': 'HTMLIFrameElement',\n 'img': 'HTMLImageElement',\n 'input': 'HTMLInputElement',\n 'keygen': 'HTMLKeygenElement',\n 'label': 'HTMLLabelElement',\n 'legend': 'HTMLLegendElement',\n 'li': 'HTMLLIElement',\n 'link': 'HTMLLinkElement',\n 'map': 'HTMLMapElement',\n 'marquee': 'HTMLMarqueeElement',\n 'menu': 'HTMLMenuElement',\n 'menuitem': 'HTMLMenuItemElement',\n 'meta': 'HTMLMetaElement',\n 'meter': 'HTMLMeterElement',\n 'object': 'HTMLObjectElement',\n 'ol': 'HTMLOListElement',\n 'optgroup': 'HTMLOptGroupElement',\n 'option': 'HTMLOptionElement',\n 'output': 'HTMLOutputElement',\n 'p': 'HTMLParagraphElement',\n 'param': 'HTMLParamElement',\n 'pre': 'HTMLPreElement',\n 'progress': 'HTMLProgressElement',\n 'q': 'HTMLQuoteElement',\n 'script': 'HTMLScriptElement',\n 'select': 'HTMLSelectElement',\n 'shadow': 'HTMLShadowElement',\n 'source': 'HTMLSourceElement',\n 'span': 'HTMLSpanElement',\n 'style': 'HTMLStyleElement',\n 'table': 'HTMLTableElement',\n 'tbody': 'HTMLTableSectionElement',\n // WebKit and Moz are wrong:\n // https://bugs.webkit.org/show_bug.cgi?id=111469\n // https://bugzilla.mozilla.org/show_bug.cgi?id=848096\n // 'td': 'HTMLTableCellElement',\n 'template': 'HTMLTemplateElement',\n 'textarea': 'HTMLTextAreaElement',\n 'thead': 'HTMLTableSectionElement',\n 'time': 'HTMLTimeElement',\n 'title': 'HTMLTitleElement',\n 'tr': 'HTMLTableRowElement',\n 'track': 'HTMLTrackElement',\n 'ul': 'HTMLUListElement',\n 'video': 'HTMLVideoElement',\n };\n\n function overrideConstructor(tagName) {\n var nativeConstructorName = elements[tagName];\n var nativeConstructor = window[nativeConstructorName];\n if (!nativeConstructor)\n return;\n var element = document.createElement(tagName);\n var wrapperConstructor = element.constructor;\n window[nativeConstructorName] = wrapperConstructor;\n }\n\n Object.keys(elements).forEach(overrideConstructor);\n\n Object.getOwnPropertyNames(scope.wrappers).forEach(function(name) {\n window[name] = scope.wrappers[name]\n });\n\n})(window.ShadowDOMPolyfill);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function() {\n\n // convenient global\n window.wrap = ShadowDOMPolyfill.wrapIfNeeded;\n window.unwrap = ShadowDOMPolyfill.unwrapIfNeeded;\n\n // users may want to customize other types\n // TODO(sjmiles): 'button' is now supported by ShadowDOMPolyfill, but\n // I've left this code here in case we need to temporarily patch another\n // type\n /*\n (function() {\n var elts = {HTMLButtonElement: 'button'};\n for (var c in elts) {\n window[c] = function() { throw 'Patched Constructor'; };\n window[c].prototype = Object.getPrototypeOf(\n document.createElement(elts[c]));\n }\n })();\n */\n\n // patch in prefixed name\n Object.defineProperty(Element.prototype, 'webkitShadowRoot',\n Object.getOwnPropertyDescriptor(Element.prototype, 'shadowRoot'));\n\n var originalCreateShadowRoot = Element.prototype.createShadowRoot;\n Element.prototype.createShadowRoot = function() {\n var root = originalCreateShadowRoot.call(this);\n CustomElements.watchShadow(this);\n return root;\n };\n\n Element.prototype.webkitCreateShadowRoot = Element.prototype.createShadowRoot;\n})();\n","/*\n * Copyright 2012 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/*\n This is a limited shim for ShadowDOM css styling.\n https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#styles\n \n The intention here is to support only the styling features which can be \n relatively simply implemented. The goal is to allow users to avoid the \n most obvious pitfalls and do so without compromising performance significantly. \n For ShadowDOM styling that's not covered here, a set of best practices\n can be provided that should allow users to accomplish more complex styling.\n\n The following is a list of specific ShadowDOM styling features and a brief\n discussion of the approach used to shim.\n\n Shimmed features:\n\n * :host, :host-context: ShadowDOM allows styling of the shadowRoot's host\n element using the :host rule. To shim this feature, the :host styles are \n reformatted and prefixed with a given scope name and promoted to a \n document level stylesheet.\n For example, given a scope name of .foo, a rule like this:\n \n :host {\n background: red;\n }\n }\n \n becomes:\n \n .foo {\n background: red;\n }\n \n * encapsultion: Styles defined within ShadowDOM, apply only to \n dom inside the ShadowDOM. Polymer uses one of two techniques to imlement\n this feature.\n \n By default, rules are prefixed with the host element tag name \n as a descendant selector. This ensures styling does not leak out of the 'top'\n of the element's ShadowDOM. For example,\n\n div {\n font-weight: bold;\n }\n \n becomes:\n\n x-foo div {\n font-weight: bold;\n }\n \n becomes:\n\n\n Alternatively, if Platform.ShadowCSS.strictStyling is set to true then \n selectors are scoped by adding an attribute selector suffix to each\n simple selector that contains the host element tag name. Each element \n in the element's ShadowDOM template is also given the scope attribute. \n Thus, these rules match only elements that have the scope attribute.\n For example, given a scope name of x-foo, a rule like this:\n \n div {\n font-weight: bold;\n }\n \n becomes:\n \n div[x-foo] {\n font-weight: bold;\n }\n\n Note that elements that are dynamically added to a scope must have the scope\n selector added to them manually.\n\n * upper/lower bound encapsulation: Styles which are defined outside a\n shadowRoot should not cross the ShadowDOM boundary and should not apply\n inside a shadowRoot.\n\n This styling behavior is not emulated. Some possible ways to do this that \n were rejected due to complexity and/or performance concerns include: (1) reset\n every possible property for every possible selector for a given scope name;\n (2) re-implement css in javascript.\n \n As an alternative, users should make sure to use selectors\n specific to the scope in which they are working.\n \n * ::distributed: This behavior is not emulated. It's often not necessary\n to style the contents of a specific insertion point and instead, descendants\n of the host element can be styled selectively. Users can also create an \n extra node around an insertion point and style that node's contents\n via descendent selectors. For example, with a shadowRoot like this:\n \n <style>\n ::content(div) {\n background: red;\n }\n </style>\n <content></content>\n \n could become:\n \n <style>\n / *@polyfill .content-container div * / \n ::content(div) {\n background: red;\n }\n </style>\n <div class=\"content-container\">\n <content></content>\n </div>\n \n Note the use of @polyfill in the comment above a ShadowDOM specific style\n declaration. This is a directive to the styling shim to use the selector \n in comments in lieu of the next selector when running under polyfill.\n*/\n(function(scope) {\n\nvar ShadowCSS = {\n strictStyling: false,\n registry: {},\n // Shim styles for a given root associated with a name and extendsName\n // 1. cache root styles by name\n // 2. optionally tag root nodes with scope name\n // 3. shim polyfill directives /* @polyfill */ and /* @polyfill-rule */\n // 4. shim :host and scoping\n shimStyling: function(root, name, extendsName) {\n var scopeStyles = this.prepareRoot(root, name, extendsName);\n var typeExtension = this.isTypeExtension(extendsName);\n var scopeSelector = this.makeScopeSelector(name, typeExtension);\n // use caching to make working with styles nodes easier and to facilitate\n // lookup of extendee\n var cssText = stylesToCssText(scopeStyles, true);\n cssText = this.scopeCssText(cssText, scopeSelector);\n // cache shimmed css on root for user extensibility\n if (root) {\n root.shimmedStyle = cssText;\n }\n // add style to document\n this.addCssToDocument(cssText, name);\n },\n /*\n * Shim a style element with the given selector. Returns cssText that can\n * be included in the document via Platform.ShadowCSS.addCssToDocument(css).\n */\n shimStyle: function(style, selector) {\n return this.shimCssText(style.textContent, selector);\n },\n /*\n * Shim some cssText with the given selector. Returns cssText that can\n * be included in the document via Platform.ShadowCSS.addCssToDocument(css).\n */\n shimCssText: function(cssText, selector) {\n cssText = this.insertDirectives(cssText);\n return this.scopeCssText(cssText, selector);\n },\n makeScopeSelector: function(name, typeExtension) {\n if (name) {\n return typeExtension ? '[is=' + name + ']' : name;\n }\n return '';\n },\n isTypeExtension: function(extendsName) {\n return extendsName && extendsName.indexOf('-') < 0;\n },\n prepareRoot: function(root, name, extendsName) {\n var def = this.registerRoot(root, name, extendsName);\n this.replaceTextInStyles(def.rootStyles, this.insertDirectives);\n // remove existing style elements\n this.removeStyles(root, def.rootStyles);\n // apply strict attr\n if (this.strictStyling) {\n this.applyScopeToContent(root, name);\n }\n return def.scopeStyles;\n },\n removeStyles: function(root, styles) {\n for (var i=0, l=styles.length, s; (i<l) && (s=styles[i]); i++) {\n s.parentNode.removeChild(s);\n }\n },\n registerRoot: function(root, name, extendsName) {\n var def = this.registry[name] = {\n root: root,\n name: name,\n extendsName: extendsName\n }\n var styles = this.findStyles(root);\n def.rootStyles = styles;\n def.scopeStyles = def.rootStyles;\n var extendee = this.registry[def.extendsName];\n if (extendee) {\n def.scopeStyles = extendee.scopeStyles.concat(def.scopeStyles);\n }\n return def;\n },\n findStyles: function(root) {\n if (!root) {\n return [];\n }\n var styles = root.querySelectorAll('style');\n return Array.prototype.filter.call(styles, function(s) {\n return !s.hasAttribute(NO_SHIM_ATTRIBUTE);\n });\n },\n applyScopeToContent: function(root, name) {\n if (root) {\n // add the name attribute to each node in root.\n Array.prototype.forEach.call(root.querySelectorAll('*'),\n function(node) {\n node.setAttribute(name, '');\n });\n // and template contents too\n Array.prototype.forEach.call(root.querySelectorAll('template'),\n function(template) {\n this.applyScopeToContent(template.content, name);\n },\n this);\n }\n },\n insertDirectives: function(cssText) {\n cssText = this.insertPolyfillDirectivesInCssText(cssText);\n return this.insertPolyfillRulesInCssText(cssText);\n },\n /*\n * Process styles to convert native ShadowDOM rules that will trip\n * up the css parser; we rely on decorating the stylesheet with inert rules.\n * \n * For example, we convert this rule:\n * \n * polyfill-next-selector { content: ':host menu-item'; }\n * ::content menu-item {\n * \n * to this:\n * \n * scopeName menu-item {\n *\n **/\n insertPolyfillDirectivesInCssText: function(cssText) {\n // TODO(sorvell): remove either content or comment\n cssText = cssText.replace(cssCommentNextSelectorRe, function(match, p1) {\n // remove end comment delimiter and add block start\n return p1.slice(0, -2) + '{';\n });\n return cssText.replace(cssContentNextSelectorRe, function(match, p1) {\n return p1 + ' {';\n });\n },\n /*\n * Process styles to add rules which will only apply under the polyfill\n * \n * For example, we convert this rule:\n * \n * polyfill-rule {\n * content: ':host menu-item';\n * ...\n * }\n * \n * to this:\n * \n * scopeName menu-item {...}\n *\n **/\n insertPolyfillRulesInCssText: function(cssText) {\n // TODO(sorvell): remove either content or comment\n cssText = cssText.replace(cssCommentRuleRe, function(match, p1) {\n // remove end comment delimiter\n return p1.slice(0, -1);\n });\n return cssText.replace(cssContentRuleRe, function(match, p1, p2, p3) {\n var rule = match.replace(p1, '').replace(p2, '');\n return p3 + rule;\n });\n },\n /* Ensure styles are scoped. Pseudo-scoping takes a rule like:\n * \n * .foo {... } \n * \n * and converts this to\n * \n * scopeName .foo { ... }\n */\n scopeCssText: function(cssText, scopeSelector) {\n var unscoped = this.extractUnscopedRulesFromCssText(cssText);\n cssText = this.insertPolyfillHostInCssText(cssText);\n cssText = this.convertColonHost(cssText);\n cssText = this.convertColonHostContext(cssText);\n cssText = this.convertCombinators(cssText);\n if (scopeSelector) {\n var self = this, cssText;\n withCssRules(cssText, function(rules) {\n cssText = self.scopeRules(rules, scopeSelector);\n });\n\n }\n cssText = cssText + '\\n' + unscoped;\n return cssText.trim();\n },\n /*\n * Process styles to add rules which will only apply under the polyfill\n * and do not process via CSSOM. (CSSOM is destructive to rules on rare \n * occasions, e.g. -webkit-calc on Safari.)\n * For example, we convert this rule:\n * \n * (comment start) @polyfill-unscoped-rule menu-item { \n * ... } (comment end)\n * \n * to this:\n * \n * menu-item {...}\n *\n **/\n extractUnscopedRulesFromCssText: function(cssText) {\n // TODO(sorvell): remove either content or comment\n var r = '', m;\n while (m = cssCommentUnscopedRuleRe.exec(cssText)) {\n r += m[1].slice(0, -1) + '\\n\\n';\n }\n while (m = cssContentUnscopedRuleRe.exec(cssText)) {\n r += m[0].replace(m[2], '').replace(m[1], m[3]) + '\\n\\n';\n }\n return r;\n },\n /*\n * convert a rule like :host(.foo) > .bar { }\n *\n * to\n *\n * scopeName.foo > .bar\n */\n convertColonHost: function(cssText) {\n return this.convertColonRule(cssText, cssColonHostRe,\n this.colonHostPartReplacer);\n },\n /*\n * convert a rule like :host-context(.foo) > .bar { }\n *\n * to\n *\n * scopeName.foo > .bar, .foo scopeName > .bar { }\n * \n * and\n *\n * :host-context(.foo:host) .bar { ... }\n * \n * to\n * \n * scopeName.foo .bar { ... }\n */\n convertColonHostContext: function(cssText) {\n return this.convertColonRule(cssText, cssColonHostContextRe,\n this.colonHostContextPartReplacer);\n },\n convertColonRule: function(cssText, regExp, partReplacer) {\n // p1 = :host, p2 = contents of (), p3 rest of rule\n return cssText.replace(regExp, function(m, p1, p2, p3) {\n p1 = polyfillHostNoCombinator;\n if (p2) {\n var parts = p2.split(','), r = [];\n for (var i=0, l=parts.length, p; (i<l) && (p=parts[i]); i++) {\n p = p.trim();\n r.push(partReplacer(p1, p, p3));\n }\n return r.join(',');\n } else {\n return p1 + p3;\n }\n });\n },\n colonHostContextPartReplacer: function(host, part, suffix) {\n if (part.match(polyfillHost)) {\n return this.colonHostPartReplacer(host, part, suffix);\n } else {\n return host + part + suffix + ', ' + part + ' ' + host + suffix;\n }\n },\n colonHostPartReplacer: function(host, part, suffix) {\n return host + part.replace(polyfillHost, '') + suffix;\n },\n /*\n * Convert ^ and ^^ combinators by replacing with space.\n */\n convertCombinators: function(cssText) {\n for (var i=0; i < combinatorsRe.length; i++) {\n cssText = cssText.replace(combinatorsRe[i], ' ');\n }\n return cssText;\n },\n // change a selector like 'div' to 'name div'\n scopeRules: function(cssRules, scopeSelector) {\n var cssText = '';\n if (cssRules) {\n Array.prototype.forEach.call(cssRules, function(rule) {\n if (rule.selectorText && (rule.style && rule.style.cssText)) {\n cssText += this.scopeSelector(rule.selectorText, scopeSelector, \n this.strictStyling) + ' {\\n\\t';\n cssText += this.propertiesFromRule(rule) + '\\n}\\n\\n';\n } else if (rule.type === CSSRule.MEDIA_RULE) {\n cssText += '@media ' + rule.media.mediaText + ' {\\n';\n cssText += this.scopeRules(rule.cssRules, scopeSelector);\n cssText += '\\n}\\n\\n';\n } else if (rule.cssText) {\n cssText += rule.cssText + '\\n\\n';\n }\n }, this);\n }\n return cssText;\n },\n scopeSelector: function(selector, scopeSelector, strict) {\n var r = [], parts = selector.split(',');\n parts.forEach(function(p) {\n p = p.trim();\n if (this.selectorNeedsScoping(p, scopeSelector)) {\n p = (strict && !p.match(polyfillHostNoCombinator)) ? \n this.applyStrictSelectorScope(p, scopeSelector) :\n this.applySelectorScope(p, scopeSelector);\n }\n r.push(p);\n }, this);\n return r.join(', ');\n },\n selectorNeedsScoping: function(selector, scopeSelector) {\n if (Array.isArray(scopeSelector)) {\n return true;\n }\n var re = this.makeScopeMatcher(scopeSelector);\n return !selector.match(re);\n },\n makeScopeMatcher: function(scopeSelector) {\n scopeSelector = scopeSelector.replace(/\\[/g, '\\\\[').replace(/\\[/g, '\\\\]');\n return new RegExp('^(' + scopeSelector + ')' + selectorReSuffix, 'm');\n },\n applySelectorScope: function(selector, selectorScope) {\n return Array.isArray(selectorScope) ?\n this.applySelectorScopeList(selector, selectorScope) :\n this.applySimpleSelectorScope(selector, selectorScope);\n },\n // apply an array of selectors\n applySelectorScopeList: function(selector, scopeSelectorList) {\n var r = [];\n for (var i=0, s; (s=scopeSelectorList[i]); i++) {\n r.push(this.applySimpleSelectorScope(selector, s));\n }\n return r.join(', ');\n },\n // scope via name and [is=name]\n applySimpleSelectorScope: function(selector, scopeSelector) {\n if (selector.match(polyfillHostRe)) {\n selector = selector.replace(polyfillHostNoCombinator, scopeSelector);\n return selector.replace(polyfillHostRe, scopeSelector + ' ');\n } else {\n return scopeSelector + ' ' + selector;\n }\n },\n // return a selector with [name] suffix on each simple selector\n // e.g. .foo.bar > .zot becomes .foo[name].bar[name] > .zot[name]\n applyStrictSelectorScope: function(selector, scopeSelector) {\n scopeSelector = scopeSelector.replace(/\\[is=([^\\]]*)\\]/g, '$1');\n var splits = [' ', '>', '+', '~'],\n scoped = selector,\n attrName = '[' + scopeSelector + ']';\n splits.forEach(function(sep) {\n var parts = scoped.split(sep);\n scoped = parts.map(function(p) {\n // remove :host since it should be unnecessary\n var t = p.trim().replace(polyfillHostRe, '');\n if (t && (splits.indexOf(t) < 0) && (t.indexOf(attrName) < 0)) {\n p = t.replace(/([^:]*)(:*)(.*)/, '$1' + attrName + '$2$3')\n }\n return p;\n }).join(sep);\n });\n return scoped;\n },\n insertPolyfillHostInCssText: function(selector) {\n return selector.replace(colonHostContextRe, polyfillHostContext).replace(\n colonHostRe, polyfillHost);\n },\n propertiesFromRule: function(rule) {\n var cssText = rule.style.cssText;\n // TODO(sorvell): Safari cssom incorrectly removes quotes from the content\n // property. (https://bugs.webkit.org/show_bug.cgi?id=118045)\n // don't replace attr rules\n if (rule.style.content && !rule.style.content.match(/['\"]+|attr/)) {\n cssText = cssText.replace(/content:[^;]*;/g, 'content: \\'' + \n rule.style.content + '\\';');\n }\n // TODO(sorvell): we can workaround this issue here, but we need a list\n // of troublesome properties to fix https://github.com/Polymer/platform/issues/53\n //\n // inherit rules can be omitted from cssText\n // TODO(sorvell): remove when Blink bug is fixed:\n // https://code.google.com/p/chromium/issues/detail?id=358273\n var style = rule.style;\n for (var i in style) {\n if (style[i] === 'initial') {\n cssText += i + ': initial; ';\n }\n }\n return cssText;\n },\n replaceTextInStyles: function(styles, action) {\n if (styles && action) {\n if (!(styles instanceof Array)) {\n styles = [styles];\n }\n Array.prototype.forEach.call(styles, function(s) {\n s.textContent = action.call(this, s.textContent);\n }, this);\n }\n },\n addCssToDocument: function(cssText, name) {\n if (cssText.match('@import')) {\n addOwnSheet(cssText, name);\n } else {\n addCssToDocument(cssText);\n }\n }\n};\n\nvar selectorRe = /([^{]*)({[\\s\\S]*?})/gim,\n cssCommentRe = /\\/\\*[^*]*\\*+([^/*][^*]*\\*+)*\\//gim,\n // TODO(sorvell): remove either content or comment\n cssCommentNextSelectorRe = /\\/\\*\\s*@polyfill ([^*]*\\*+([^/*][^*]*\\*+)*\\/)([^{]*?){/gim,\n cssContentNextSelectorRe = /polyfill-next-selector[^}]*content\\:[\\s]*'([^']*)'[^}]*}([^{]*?){/gim,\n // TODO(sorvell): remove either content or comment\n cssCommentRuleRe = /\\/\\*\\s@polyfill-rule([^*]*\\*+([^/*][^*]*\\*+)*)\\//gim,\n cssContentRuleRe = /(polyfill-rule)[^}]*(content\\:[\\s]*'([^']*)'[^;]*;)[^}]*}/gim,\n // TODO(sorvell): remove either content or comment\n cssCommentUnscopedRuleRe = /\\/\\*\\s@polyfill-unscoped-rule([^*]*\\*+([^/*][^*]*\\*+)*)\\//gim,\n cssContentUnscopedRuleRe = /(polyfill-unscoped-rule)[^}]*(content\\:[\\s]*'([^']*)'[^;]*;)[^}]*}/gim,\n cssPseudoRe = /::(x-[^\\s{,(]*)/gim,\n cssPartRe = /::part\\(([^)]*)\\)/gim,\n // note: :host pre-processed to -shadowcsshost.\n polyfillHost = '-shadowcsshost',\n // note: :host-context pre-processed to -shadowcsshostcontext.\n polyfillHostContext = '-shadowcsscontext',\n parenSuffix = ')(?:\\\\((' +\n '(?:\\\\([^)(]*\\\\)|[^)(]*)+?' +\n ')\\\\))?([^,{]*)';\n cssColonHostRe = new RegExp('(' + polyfillHost + parenSuffix, 'gim'),\n cssColonHostContextRe = new RegExp('(' + polyfillHostContext + parenSuffix, 'gim'),\n selectorReSuffix = '([>\\\\s~+\\[.,{:][\\\\s\\\\S]*)?$',\n colonHostRe = /\\:host/gim,\n colonHostContextRe = /\\:host-context/gim,\n /* host name without combinator */\n polyfillHostNoCombinator = polyfillHost + '-no-combinator',\n polyfillHostRe = new RegExp(polyfillHost, 'gim'),\n polyfillHostContextRe = new RegExp(polyfillHostContext, 'gim'),\n combinatorsRe = [\n /\\^\\^/g,\n /\\^/g,\n /\\/shadow\\//g,\n /\\/shadow-deep\\//g,\n /::shadow/g,\n /\\/deep\\//g\n ];\n\nfunction stylesToCssText(styles, preserveComments) {\n var cssText = '';\n Array.prototype.forEach.call(styles, function(s) {\n cssText += s.textContent + '\\n\\n';\n });\n // strip comments for easier processing\n if (!preserveComments) {\n cssText = cssText.replace(cssCommentRe, '');\n }\n return cssText;\n}\n\nfunction cssTextToStyle(cssText) {\n var style = document.createElement('style');\n style.textContent = cssText;\n return style;\n}\n\nfunction cssToRules(cssText) {\n var style = cssTextToStyle(cssText);\n document.head.appendChild(style);\n var rules = [];\n if (style.sheet) {\n // TODO(sorvell): Firefox throws when accessing the rules of a stylesheet\n // with an @import\n // https://bugzilla.mozilla.org/show_bug.cgi?id=625013\n try {\n rules = style.sheet.cssRules;\n } catch(e) {\n //\n }\n } else {\n console.warn('sheet not found', style);\n }\n style.parentNode.removeChild(style);\n return rules;\n}\n\nvar frame = document.createElement('iframe');\nframe.style.display = 'none';\n\nfunction initFrame() {\n frame.initialized = true;\n document.body.appendChild(frame);\n var doc = frame.contentDocument;\n var base = doc.createElement('base');\n base.href = document.baseURI;\n doc.head.appendChild(base);\n}\n\nfunction inFrame(fn) {\n if (!frame.initialized) {\n initFrame();\n }\n document.body.appendChild(frame);\n fn(frame.contentDocument);\n document.body.removeChild(frame);\n}\n\n// TODO(sorvell): use an iframe if the cssText contains an @import to workaround\n// https://code.google.com/p/chromium/issues/detail?id=345114\nvar isChrome = navigator.userAgent.match('Chrome');\nfunction withCssRules(cssText, callback) {\n if (!callback) {\n return;\n }\n var rules;\n if (cssText.match('@import') && isChrome) {\n var style = cssTextToStyle(cssText);\n inFrame(function(doc) {\n doc.head.appendChild(style.impl);\n rules = style.sheet.cssRules;\n callback(rules);\n });\n } else {\n rules = cssToRules(cssText);\n callback(rules);\n }\n}\n\nfunction rulesToCss(cssRules) {\n for (var i=0, css=[]; i < cssRules.length; i++) {\n css.push(cssRules[i].cssText);\n }\n return css.join('\\n\\n');\n}\n\nfunction addCssToDocument(cssText) {\n if (cssText) {\n getSheet().appendChild(document.createTextNode(cssText));\n }\n}\n\nfunction addOwnSheet(cssText, name) {\n var style = cssTextToStyle(cssText);\n style.setAttribute(name, '');\n style.setAttribute(SHIMMED_ATTRIBUTE, '');\n document.head.appendChild(style);\n}\n\nvar SHIM_ATTRIBUTE = 'shim-shadowdom';\nvar SHIMMED_ATTRIBUTE = 'shim-shadowdom-css';\nvar NO_SHIM_ATTRIBUTE = 'no-shim';\n\nvar sheet;\nfunction getSheet() {\n if (!sheet) {\n sheet = document.createElement(\"style\");\n sheet.setAttribute(SHIMMED_ATTRIBUTE, '');\n sheet[SHIMMED_ATTRIBUTE] = true;\n }\n return sheet;\n}\n\n// add polyfill stylesheet to document\nif (window.ShadowDOMPolyfill) {\n addCssToDocument('style { display: none !important; }\\n');\n var doc = wrap(document);\n var head = doc.querySelector('head');\n head.insertBefore(getSheet(), head.childNodes[0]);\n\n // TODO(sorvell): monkey-patching HTMLImports is abusive;\n // consider a better solution.\n document.addEventListener('DOMContentLoaded', function() {\n var urlResolver = scope.urlResolver;\n \n if (window.HTMLImports && !HTMLImports.useNative) {\n var SHIM_SHEET_SELECTOR = 'link[rel=stylesheet]' +\n '[' + SHIM_ATTRIBUTE + ']';\n var SHIM_STYLE_SELECTOR = 'style[' + SHIM_ATTRIBUTE + ']';\n HTMLImports.importer.documentPreloadSelectors += ',' + SHIM_SHEET_SELECTOR;\n HTMLImports.importer.importsPreloadSelectors += ',' + SHIM_SHEET_SELECTOR;\n\n HTMLImports.parser.documentSelectors = [\n HTMLImports.parser.documentSelectors,\n SHIM_SHEET_SELECTOR,\n SHIM_STYLE_SELECTOR\n ].join(',');\n \n var originalParseGeneric = HTMLImports.parser.parseGeneric;\n\n HTMLImports.parser.parseGeneric = function(elt) {\n if (elt[SHIMMED_ATTRIBUTE]) {\n return;\n }\n var style = elt.__importElement || elt;\n if (!style.hasAttribute(SHIM_ATTRIBUTE)) {\n originalParseGeneric.call(this, elt);\n return;\n }\n if (elt.__resource) {\n style = elt.ownerDocument.createElement('style');\n style.textContent = urlResolver.resolveCssText(\n elt.__resource, elt.href);\n } else {\n urlResolver.resolveStyle(style); \n }\n style.textContent = ShadowCSS.shimStyle(style);\n style.removeAttribute(SHIM_ATTRIBUTE, '');\n style.setAttribute(SHIMMED_ATTRIBUTE, '');\n style[SHIMMED_ATTRIBUTE] = true;\n // place in document\n if (style.parentNode !== head) {\n // replace links in head\n if (elt.parentNode === head) {\n head.replaceChild(style, elt);\n } else {\n head.appendChild(style);\n }\n }\n style.__importParsed = true;\n this.markParsingComplete(elt);\n }\n\n var hasResource = HTMLImports.parser.hasResource;\n HTMLImports.parser.hasResource = function(node) {\n if (node.localName === 'link' && node.rel === 'stylesheet' &&\n node.hasAttribute(SHIM_ATTRIBUTE)) {\n return (node.__resource);\n } else {\n return hasResource.call(this, node);\n }\n }\n\n }\n });\n}\n\n// exports\nscope.ShadowCSS = ShadowCSS;\n\n})(window.Platform);","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function() {\n\n // poor man's adapter for template.content on various platform scenarios\n window.templateContent = window.templateContent || function(inTemplate) {\n return inTemplate.content;\n };\n\n // so we can call wrap/unwrap without testing for ShadowDOMPolyfill\n\n window.wrap = window.unwrap = function(n){\n return n;\n }\n \n addEventListener('DOMContentLoaded', function() {\n if (CustomElements.useNative === false) {\n var originalCreateShadowRoot = Element.prototype.createShadowRoot;\n Element.prototype.createShadowRoot = function() {\n var root = originalCreateShadowRoot.call(this);\n CustomElements.watchShadow(this);\n return root;\n };\n }\n });\n \n window.templateContent = function(inTemplate) {\n // if MDV exists, it may need to boostrap this template to reveal content\n if (window.HTMLTemplateElement && HTMLTemplateElement.bootstrap) {\n HTMLTemplateElement.bootstrap(inTemplate);\n }\n // fallback when there is no Shadow DOM polyfill, no MDV polyfill, and no\n // native template support\n if (!inTemplate.content && !inTemplate._content) {\n var frag = document.createDocumentFragment();\n while (inTemplate.firstChild) {\n frag.appendChild(inTemplate.firstChild);\n }\n inTemplate._content = frag;\n }\n return inTemplate.content || inTemplate._content;\n };\n\n})();","/* Any copyright is dedicated to the Public Domain.\n * http://creativecommons.org/publicdomain/zero/1.0/ */\n\n(function(scope) {\n 'use strict';\n\n // feature detect for URL constructor\n var hasWorkingUrl = false;\n if (!scope.forceJURL) {\n try {\n var u = new URL('b', 'http://a');\n hasWorkingUrl = u.href === 'http://a/b';\n } catch(e) {}\n }\n\n if (hasWorkingUrl)\n return;\n\n var relative = Object.create(null);\n relative['ftp'] = 21;\n relative['file'] = 0;\n relative['gopher'] = 70;\n relative['http'] = 80;\n relative['https'] = 443;\n relative['ws'] = 80;\n relative['wss'] = 443;\n\n var relativePathDotMapping = Object.create(null);\n relativePathDotMapping['%2e'] = '.';\n relativePathDotMapping['.%2e'] = '..';\n relativePathDotMapping['%2e.'] = '..';\n relativePathDotMapping['%2e%2e'] = '..';\n\n function isRelativeScheme(scheme) {\n return relative[scheme] !== undefined;\n }\n\n function invalid() {\n clear.call(this);\n this._isInvalid = true;\n }\n\n function IDNAToASCII(h) {\n if ('' == h) {\n invalid.call(this)\n }\n // XXX\n return h.toLowerCase()\n }\n\n function percentEscape(c) {\n var unicode = c.charCodeAt(0);\n if (unicode > 0x20 &&\n unicode < 0x7F &&\n // \" # < > ? `\n [0x22, 0x23, 0x3C, 0x3E, 0x3F, 0x60].indexOf(unicode) == -1\n ) {\n return c;\n }\n return encodeURIComponent(c);\n }\n\n function percentEscapeQuery(c) {\n // XXX This actually needs to encode c using encoding and then\n // convert the bytes one-by-one.\n\n var unicode = c.charCodeAt(0);\n if (unicode > 0x20 &&\n unicode < 0x7F &&\n // \" # < > ` (do not escape '?')\n [0x22, 0x23, 0x3C, 0x3E, 0x60].indexOf(unicode) == -1\n ) {\n return c;\n }\n return encodeURIComponent(c);\n }\n\n var EOF = undefined,\n ALPHA = /[a-zA-Z]/,\n ALPHANUMERIC = /[a-zA-Z0-9\\+\\-\\.]/;\n\n function parse(input, stateOverride, base) {\n function err(message) {\n errors.push(message)\n }\n\n var state = stateOverride || 'scheme start',\n cursor = 0,\n buffer = '',\n seenAt = false,\n seenBracket = false,\n errors = [];\n\n loop: while ((input[cursor - 1] != EOF || cursor == 0) && !this._isInvalid) {\n var c = input[cursor];\n switch (state) {\n case 'scheme start':\n if (c && ALPHA.test(c)) {\n buffer += c.toLowerCase(); // ASCII-safe\n state = 'scheme';\n } else if (!stateOverride) {\n buffer = '';\n state = 'no scheme';\n continue;\n } else {\n err('Invalid scheme.');\n break loop;\n }\n break;\n\n case 'scheme':\n if (c && ALPHANUMERIC.test(c)) {\n buffer += c.toLowerCase(); // ASCII-safe\n } else if (':' == c) {\n this._scheme = buffer;\n buffer = '';\n if (stateOverride) {\n break loop;\n }\n if (isRelativeScheme(this._scheme)) {\n this._isRelative = true;\n }\n if ('file' == this._scheme) {\n state = 'relative';\n } else if (this._isRelative && base && base._scheme == this._scheme) {\n state = 'relative or authority';\n } else if (this._isRelative) {\n state = 'authority first slash';\n } else {\n state = 'scheme data';\n }\n } else if (!stateOverride) {\n buffer = '';\n cursor = 0;\n state = 'no scheme';\n continue;\n } else if (EOF == c) {\n break loop;\n } else {\n err('Code point not allowed in scheme: ' + c)\n break loop;\n }\n break;\n\n case 'scheme data':\n if ('?' == c) {\n query = '?';\n state = 'query';\n } else if ('#' == c) {\n this._fragment = '#';\n state = 'fragment';\n } else {\n // XXX error handling\n if (EOF != c && '\\t' != c && '\\n' != c && '\\r' != c) {\n this._schemeData += percentEscape(c);\n }\n }\n break;\n\n case 'no scheme':\n if (!base || !(isRelativeScheme(base._scheme))) {\n err('Missing scheme.');\n invalid.call(this);\n } else {\n state = 'relative';\n continue;\n }\n break;\n\n case 'relative or authority':\n if ('/' == c && '/' == input[cursor+1]) {\n state = 'authority ignore slashes';\n } else {\n err('Expected /, got: ' + c);\n state = 'relative';\n continue\n }\n break;\n\n case 'relative':\n this._isRelative = true;\n if ('file' != this._scheme)\n this._scheme = base._scheme;\n if (EOF == c) {\n this._host = base._host;\n this._port = base._port;\n this._path = base._path.slice();\n this._query = base._query;\n break loop;\n } else if ('/' == c || '\\\\' == c) {\n if ('\\\\' == c)\n err('\\\\ is an invalid code point.');\n state = 'relative slash';\n } else if ('?' == c) {\n this._host = base._host;\n this._port = base._port;\n this._path = base._path.slice();\n this._query = '?';\n state = 'query';\n } else if ('#' == c) {\n this._host = base._host;\n this._port = base._port;\n this._path = base._path.slice();\n this._query = base._query;\n this._fragment = '#';\n state = 'fragment';\n } else {\n var nextC = input[cursor+1]\n var nextNextC = input[cursor+2]\n if (\n 'file' != this._scheme || !ALPHA.test(c) ||\n (nextC != ':' && nextC != '|') ||\n (EOF != nextNextC && '/' != nextNextC && '\\\\' != nextNextC && '?' != nextNextC && '#' != nextNextC)) {\n this._host = base._host;\n this._port = base._port;\n this._path = base._path.slice();\n this._path.pop();\n }\n state = 'relative path';\n continue;\n }\n break;\n\n case 'relative slash':\n if ('/' == c || '\\\\' == c) {\n if ('\\\\' == c) {\n err('\\\\ is an invalid code point.');\n }\n if ('file' == this._scheme) {\n state = 'file host';\n } else {\n state = 'authority ignore slashes';\n }\n } else {\n if ('file' != this._scheme) {\n this._host = base._host;\n this._port = base._port;\n }\n state = 'relative path';\n continue;\n }\n break;\n\n case 'authority first slash':\n if ('/' == c) {\n state = 'authority second slash';\n } else {\n err(\"Expected '/', got: \" + c);\n state = 'authority ignore slashes';\n continue;\n }\n break;\n\n case 'authority second slash':\n state = 'authority ignore slashes';\n if ('/' != c) {\n err(\"Expected '/', got: \" + c);\n continue;\n }\n break;\n\n case 'authority ignore slashes':\n if ('/' != c && '\\\\' != c) {\n state = 'authority';\n continue;\n } else {\n err('Expected authority, got: ' + c);\n }\n break;\n\n case 'authority':\n if ('@' == c) {\n if (seenAt) {\n err('@ already seen.');\n buffer += '%40';\n }\n seenAt = true;\n for (var i = 0; i < buffer.length; i++) {\n var cp = buffer[i];\n if ('\\t' == cp || '\\n' == cp || '\\r' == cp) {\n err('Invalid whitespace in authority.');\n continue;\n }\n // XXX check URL code points\n if (':' == cp && null === this._password) {\n this._password = '';\n continue;\n }\n var tempC = percentEscape(cp);\n (null !== this._password) ? this._password += tempC : this._username += tempC;\n }\n buffer = '';\n } else if (EOF == c || '/' == c || '\\\\' == c || '?' == c || '#' == c) {\n cursor -= buffer.length;\n buffer = '';\n state = 'host';\n continue;\n } else {\n buffer += c;\n }\n break;\n\n case 'file host':\n if (EOF == c || '/' == c || '\\\\' == c || '?' == c || '#' == c) {\n if (buffer.length == 2 && ALPHA.test(buffer[0]) && (buffer[1] == ':' || buffer[1] == '|')) {\n state = 'relative path';\n } else if (buffer.length == 0) {\n state = 'relative path start';\n } else {\n this._host = IDNAToASCII.call(this, buffer);\n buffer = '';\n state = 'relative path start';\n }\n continue;\n } else if ('\\t' == c || '\\n' == c || '\\r' == c) {\n err('Invalid whitespace in file host.');\n } else {\n buffer += c;\n }\n break;\n\n case 'host':\n case 'hostname':\n if (':' == c && !seenBracket) {\n // XXX host parsing\n this._host = IDNAToASCII.call(this, buffer);\n buffer = '';\n state = 'port';\n if ('hostname' == stateOverride) {\n break loop;\n }\n } else if (EOF == c || '/' == c || '\\\\' == c || '?' == c || '#' == c) {\n this._host = IDNAToASCII.call(this, buffer);\n buffer = '';\n state = 'relative path start';\n if (stateOverride) {\n break loop;\n }\n continue;\n } else if ('\\t' != c && '\\n' != c && '\\r' != c) {\n if ('[' == c) {\n seenBracket = true;\n } else if (']' == c) {\n seenBracket = false;\n }\n buffer += c;\n } else {\n err('Invalid code point in host/hostname: ' + c);\n }\n break;\n\n case 'port':\n if (/[0-9]/.test(c)) {\n buffer += c;\n } else if (EOF == c || '/' == c || '\\\\' == c || '?' == c || '#' == c || stateOverride) {\n if ('' != buffer) {\n var temp = parseInt(buffer, 10);\n if (temp != relative[this._scheme]) {\n this._port = temp + '';\n }\n buffer = '';\n }\n if (stateOverride) {\n break loop;\n }\n state = 'relative path start';\n continue;\n } else if ('\\t' == c || '\\n' == c || '\\r' == c) {\n err('Invalid code point in port: ' + c);\n } else {\n invalid.call(this);\n }\n break;\n\n case 'relative path start':\n if ('\\\\' == c)\n err(\"'\\\\' not allowed in path.\");\n state = 'relative path';\n if ('/' != c && '\\\\' != c) {\n continue;\n }\n break;\n\n case 'relative path':\n if (EOF == c || '/' == c || '\\\\' == c || (!stateOverride && ('?' == c || '#' == c))) {\n if ('\\\\' == c) {\n err('\\\\ not allowed in relative path.');\n }\n var tmp;\n if (tmp = relativePathDotMapping[buffer.toLowerCase()]) {\n buffer = tmp;\n }\n if ('..' == buffer) {\n this._path.pop();\n if ('/' != c && '\\\\' != c) {\n this._path.push('');\n }\n } else if ('.' == buffer && '/' != c && '\\\\' != c) {\n this._path.push('');\n } else if ('.' != buffer) {\n if ('file' == this._scheme && this._path.length == 0 && buffer.length == 2 && ALPHA.test(buffer[0]) && buffer[1] == '|') {\n buffer = buffer[0] + ':';\n }\n this._path.push(buffer);\n }\n buffer = '';\n if ('?' == c) {\n this._query = '?';\n state = 'query';\n } else if ('#' == c) {\n this._fragment = '#';\n state = 'fragment';\n }\n } else if ('\\t' != c && '\\n' != c && '\\r' != c) {\n buffer += percentEscape(c);\n }\n break;\n\n case 'query':\n if (!stateOverride && '#' == c) {\n this._fragment = '#';\n state = 'fragment';\n } else if (EOF != c && '\\t' != c && '\\n' != c && '\\r' != c) {\n this._query += percentEscapeQuery(c);\n }\n break;\n\n case 'fragment':\n if (EOF != c && '\\t' != c && '\\n' != c && '\\r' != c) {\n this._fragment += c;\n }\n break;\n }\n\n cursor++;\n }\n }\n\n function clear() {\n this._scheme = '';\n this._schemeData = '';\n this._username = '';\n this._password = null;\n this._host = '';\n this._port = '';\n this._path = [];\n this._query = '';\n this._fragment = '';\n this._isInvalid = false;\n this._isRelative = false;\n }\n\n // Does not process domain names or IP addresses.\n // Does not handle encoding for the query parameter.\n function jURL(url, base /* , encoding */) {\n if (base !== undefined && !(base instanceof jURL))\n base = new jURL(String(base));\n\n this._url = url;\n clear.call(this);\n\n var input = url.replace(/^[ \\t\\r\\n\\f]+|[ \\t\\r\\n\\f]+$/g, '');\n // encoding = encoding || 'utf-8'\n\n parse.call(this, input, null, base);\n }\n\n jURL.prototype = {\n get href() {\n if (this._isInvalid)\n return this._url;\n\n var authority = '';\n if ('' != this._username || null != this._password) {\n authority = this._username +\n (null != this._password ? ':' + this._password : '') + '@';\n }\n\n return this.protocol +\n (this._isRelative ? '//' + authority + this.host : '') +\n this.pathname + this._query + this._fragment;\n },\n set href(href) {\n clear.call(this);\n parse.call(this, href);\n },\n\n get protocol() {\n return this._scheme + ':';\n },\n set protocol(protocol) {\n if (this._isInvalid)\n return;\n parse.call(this, protocol + ':', 'scheme start');\n },\n\n get host() {\n return this._isInvalid ? '' : this._port ?\n this._host + ':' + this._port : this._host;\n },\n set host(host) {\n if (this._isInvalid || !this._isRelative)\n return;\n parse.call(this, host, 'host');\n },\n\n get hostname() {\n return this._host;\n },\n set hostname(hostname) {\n if (this._isInvalid || !this._isRelative)\n return;\n parse.call(this, hostname, 'hostname');\n },\n\n get port() {\n return this._port;\n },\n set port(port) {\n if (this._isInvalid || !this._isRelative)\n return;\n parse.call(this, port, 'port');\n },\n\n get pathname() {\n return this._isInvalid ? '' : this._isRelative ?\n '/' + this._path.join('/') : this._schemeData;\n },\n set pathname(pathname) {\n if (this._isInvalid || !this._isRelative)\n return;\n this._path = [];\n parse.call(this, pathname, 'relative path start');\n },\n\n get search() {\n return this._isInvalid || !this._query || '?' == this._query ?\n '' : this._query;\n },\n set search(search) {\n if (this._isInvalid || !this._isRelative)\n return;\n this._query = '?';\n if ('?' == search[0])\n search = search.slice(1);\n parse.call(this, search, 'query');\n },\n\n get hash() {\n return this._isInvalid || !this._fragment || '#' == this._fragment ?\n '' : this._fragment;\n },\n set hash(hash) {\n if (this._isInvalid)\n return;\n this._fragment = '#';\n if ('#' == hash[0])\n hash = hash.slice(1);\n parse.call(this, hash, 'fragment');\n }\n };\n\n scope.URL = jURL;\n\n})(window);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n(function(scope) {\n\n// Old versions of iOS do not have bind.\n\nif (!Function.prototype.bind) {\n Function.prototype.bind = function(scope) {\n var self = this;\n var args = Array.prototype.slice.call(arguments, 1);\n return function() {\n var args2 = args.slice();\n args2.push.apply(args2, arguments);\n return self.apply(scope, args2);\n };\n };\n}\n\n// mixin\n\n// copy all properties from inProps (et al) to inObj\nfunction mixin(inObj/*, inProps, inMoreProps, ...*/) {\n var obj = inObj || {};\n for (var i = 1; i < arguments.length; i++) {\n var p = arguments[i];\n try {\n for (var n in p) {\n copyProperty(n, p, obj);\n }\n } catch(x) {\n }\n }\n return obj;\n}\n\n// copy property inName from inSource object to inTarget object\nfunction copyProperty(inName, inSource, inTarget) {\n var pd = getPropertyDescriptor(inSource, inName);\n Object.defineProperty(inTarget, inName, pd);\n}\n\n// get property descriptor for inName on inObject, even if\n// inName exists on some link in inObject's prototype chain\nfunction getPropertyDescriptor(inObject, inName) {\n if (inObject) {\n var pd = Object.getOwnPropertyDescriptor(inObject, inName);\n return pd || getPropertyDescriptor(Object.getPrototypeOf(inObject), inName);\n }\n}\n\n// export\n\nscope.mixin = mixin;\n\n})(window.Platform);","// Copyright 2011 Google Inc.\n//\n// Licensed under the Apache License, Version 2.0 (the \"License\");\n// you may not use this file except in compliance with the License.\n// You may obtain a copy of the License at\n//\n// http://www.apache.org/licenses/LICENSE-2.0\n//\n// Unless required by applicable law or agreed to in writing, software\n// distributed under the License is distributed on an \"AS IS\" BASIS,\n// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n// See the License for the specific language governing permissions and\n// limitations under the License.\n\n(function(scope) {\n\n 'use strict';\n\n // polyfill DOMTokenList\n // * add/remove: allow these methods to take multiple classNames\n // * toggle: add a 2nd argument which forces the given state rather\n // than toggling.\n\n var add = DOMTokenList.prototype.add;\n var remove = DOMTokenList.prototype.remove;\n DOMTokenList.prototype.add = function() {\n for (var i = 0; i < arguments.length; i++) {\n add.call(this, arguments[i]);\n }\n };\n DOMTokenList.prototype.remove = function() {\n for (var i = 0; i < arguments.length; i++) {\n remove.call(this, arguments[i]);\n }\n };\n DOMTokenList.prototype.toggle = function(name, bool) {\n if (arguments.length == 1) {\n bool = !this.contains(name);\n }\n bool ? this.add(name) : this.remove(name);\n };\n DOMTokenList.prototype.switch = function(oldName, newName) {\n oldName && this.remove(oldName);\n newName && this.add(newName);\n };\n\n // add array() to NodeList, NamedNodeMap, HTMLCollection\n\n var ArraySlice = function() {\n return Array.prototype.slice.call(this);\n };\n\n var namedNodeMap = (window.NamedNodeMap || window.MozNamedAttrMap || {});\n\n NodeList.prototype.array = ArraySlice;\n namedNodeMap.prototype.array = ArraySlice;\n HTMLCollection.prototype.array = ArraySlice;\n\n // polyfill performance.now\n\n if (!window.performance) {\n var start = Date.now();\n // only at millisecond precision\n window.performance = {now: function(){ return Date.now() - start }};\n }\n\n // polyfill for requestAnimationFrame\n\n if (!window.requestAnimationFrame) {\n window.requestAnimationFrame = (function() {\n var nativeRaf = window.webkitRequestAnimationFrame ||\n window.mozRequestAnimationFrame;\n\n return nativeRaf ?\n function(callback) {\n return nativeRaf(function() {\n callback(performance.now());\n });\n } :\n function( callback ){\n return window.setTimeout(callback, 1000 / 60);\n };\n })();\n }\n\n if (!window.cancelAnimationFrame) {\n window.cancelAnimationFrame = (function() {\n return window.webkitCancelAnimationFrame ||\n window.mozCancelAnimationFrame ||\n function(id) {\n clearTimeout(id);\n };\n })();\n }\n\n // utility\n\n function createDOM(inTagOrNode, inHTML, inAttrs) {\n var dom = typeof inTagOrNode == 'string' ?\n document.createElement(inTagOrNode) : inTagOrNode.cloneNode(true);\n dom.innerHTML = inHTML;\n if (inAttrs) {\n for (var n in inAttrs) {\n dom.setAttribute(n, inAttrs[n]);\n }\n }\n return dom;\n }\n // Make a stub for Polymer() for polyfill purposes; under the HTMLImports\n // polyfill, scripts in the main document run before imports. That means\n // if (1) polymer is imported and (2) Polymer() is called in the main document\n // in a script after the import, 2 occurs before 1. We correct this here\n // by specfiically patching Polymer(); this is not necessary under native\n // HTMLImports.\n var elementDeclarations = [];\n\n var polymerStub = function(name, dictionary) {\n elementDeclarations.push(arguments);\n }\n window.Polymer = polymerStub;\n\n // deliver queued delcarations\n scope.deliverDeclarations = function() {\n scope.deliverDeclarations = function() {\n throw 'Possible attempt to load Polymer twice';\n };\n return elementDeclarations;\n }\n\n // Once DOMContent has loaded, any main document scripts that depend on\n // Polymer() should have run. Calling Polymer() now is an error until\n // polymer is imported.\n window.addEventListener('DOMContentLoaded', function() {\n if (window.Polymer === polymerStub) {\n window.Polymer = function() {\n console.error('You tried to use polymer without loading it first. To ' +\n 'load polymer, <link rel=\"import\" href=\"' + \n 'components/polymer/polymer.html\">');\n };\n }\n });\n\n // exports\n scope.createDOM = createDOM;\n\n})(window.Platform);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n// poor man's adapter for template.content on various platform scenarios\nwindow.templateContent = window.templateContent || function(inTemplate) {\n return inTemplate.content;\n};","(function(scope) {\n \n scope = scope || (window.Inspector = {});\n \n var inspector;\n\n window.sinspect = function(inNode, inProxy) {\n if (!inspector) {\n inspector = window.open('', 'ShadowDOM Inspector', null, true);\n inspector.document.write(inspectorHTML);\n //inspector.document.close();\n inspector.api = {\n shadowize: shadowize\n };\n }\n inspect(inNode || wrap(document.body), inProxy);\n };\n\n var inspectorHTML = [\n '<!DOCTYPE html>',\n '<html>',\n ' <head>',\n ' <title>ShadowDOM Inspector</title>',\n ' <style>',\n ' body {',\n ' }',\n ' pre {',\n ' font: 9pt \"Courier New\", monospace;',\n ' line-height: 1.5em;',\n ' }',\n ' tag {',\n ' color: purple;',\n ' }',\n ' ul {',\n ' margin: 0;',\n ' padding: 0;',\n ' list-style: none;',\n ' }',\n ' li {',\n ' display: inline-block;',\n ' background-color: #f1f1f1;',\n ' padding: 4px 6px;',\n ' border-radius: 4px;',\n ' margin-right: 4px;',\n ' }',\n ' </style>',\n ' </head>',\n ' <body>',\n ' <ul id=\"crumbs\">',\n ' </ul>',\n ' <div id=\"tree\"></div>',\n ' </body>',\n '</html>'\n ].join('\\n');\n \n var crumbs = [];\n\n var displayCrumbs = function() {\n // alias our document\n var d = inspector.document;\n // get crumbbar\n var cb = d.querySelector('#crumbs');\n // clear crumbs\n cb.textContent = '';\n // build new crumbs\n for (var i=0, c; c=crumbs[i]; i++) {\n var a = d.createElement('a');\n a.href = '#';\n a.textContent = c.localName;\n a.idx = i;\n a.onclick = function(event) {\n var c;\n while (crumbs.length > this.idx) {\n c = crumbs.pop();\n }\n inspect(c.shadow || c, c);\n event.preventDefault();\n };\n cb.appendChild(d.createElement('li')).appendChild(a);\n }\n };\n\n var inspect = function(inNode, inProxy) {\n // alias our document\n var d = inspector.document;\n // reset list of drillable nodes\n drillable = [];\n // memoize our crumb proxy\n var proxy = inProxy || inNode;\n crumbs.push(proxy);\n // update crumbs\n displayCrumbs();\n // reflect local tree\n d.body.querySelector('#tree').innerHTML =\n '<pre>' + output(inNode, inNode.childNodes) + '</pre>';\n };\n\n var forEach = Array.prototype.forEach.call.bind(Array.prototype.forEach);\n\n var blacklisted = {STYLE:1, SCRIPT:1, \"#comment\": 1, TEMPLATE: 1};\n var blacklist = function(inNode) {\n return blacklisted[inNode.nodeName];\n };\n\n var output = function(inNode, inChildNodes, inIndent) {\n if (blacklist(inNode)) {\n return '';\n }\n var indent = inIndent || '';\n if (inNode.localName || inNode.nodeType == 11) {\n var name = inNode.localName || 'shadow-root';\n //inChildNodes = ShadowDOM.localNodes(inNode);\n var info = indent + describe(inNode);\n // if only textNodes\n // TODO(sjmiles): make correct for ShadowDOM\n /*if (!inNode.children.length && inNode.localName !== 'content' && inNode.localName !== 'shadow') {\n info += catTextContent(inChildNodes);\n } else*/ {\n // TODO(sjmiles): native <shadow> has no reference to its projection\n if (name == 'content' /*|| name == 'shadow'*/) {\n inChildNodes = inNode.getDistributedNodes();\n }\n info += '<br/>';\n var ind = indent + ' ';\n forEach(inChildNodes, function(n) {\n info += output(n, n.childNodes, ind);\n });\n info += indent;\n }\n if (!({br:1}[name])) {\n info += '<tag></' + name + '></tag>';\n info += '<br/>';\n }\n } else {\n var text = inNode.textContent.trim();\n info = text ? indent + '\"' + text + '\"' + '<br/>' : '';\n }\n return info;\n };\n\n var catTextContent = function(inChildNodes) {\n var info = '';\n forEach(inChildNodes, function(n) {\n info += n.textContent.trim();\n });\n return info;\n };\n\n var drillable = [];\n\n var describe = function(inNode) {\n var tag = '<tag>' + '<';\n var name = inNode.localName || 'shadow-root';\n if (inNode.webkitShadowRoot || inNode.shadowRoot) {\n tag += ' <button idx=\"' + drillable.length +\n '\" onclick=\"api.shadowize.call(this)\">' + name + '</button>';\n drillable.push(inNode);\n } else {\n tag += name || 'shadow-root';\n }\n if (inNode.attributes) {\n forEach(inNode.attributes, function(a) {\n tag += ' ' + a.name + (a.value ? '=\"' + a.value + '\"' : '');\n });\n }\n tag += '>'+ '</tag>';\n return tag;\n };\n\n // remote api\n\n shadowize = function() {\n var idx = Number(this.attributes.idx.value);\n //alert(idx);\n var node = drillable[idx];\n if (node) {\n inspect(node.webkitShadowRoot || node.shadowRoot, node)\n } else {\n console.log(\"bad shadowize node\");\n console.dir(this);\n }\n };\n \n // export\n \n scope.output = output;\n \n})(window.Inspector);\n\n\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(scope) {\n\n // TODO(sorvell): It's desireable to provide a default stylesheet \n // that's convenient for styling unresolved elements, but\n // it's cumbersome to have to include this manually in every page.\n // It would make sense to put inside some HTMLImport but \n // the HTMLImports polyfill does not allow loading of stylesheets \n // that block rendering. Therefore this injection is tolerated here.\n\n var style = document.createElement('style');\n style.textContent = ''\n + 'body {'\n + 'transition: opacity ease-in 0.2s;' \n + ' } \\n'\n + 'body[unresolved] {'\n + 'opacity: 0; display: block; overflow: hidden;' \n + ' } \\n'\n ;\n var head = document.querySelector('head');\n head.insertBefore(style, head.firstChild);\n\n})(Platform);\n","(function(scope) {\n\n function withDependencies(task, depends) {\n depends = depends || [];\n if (!depends.map) {\n depends = [depends];\n }\n return task.apply(this, depends.map(marshal));\n }\n\n function module(name, dependsOrFactory, moduleFactory) {\n var module;\n switch (arguments.length) {\n case 0:\n return;\n case 1:\n module = null;\n break;\n case 2:\n module = dependsOrFactory.apply(this);\n break;\n default:\n module = withDependencies(moduleFactory, dependsOrFactory);\n break;\n }\n modules[name] = module;\n };\n\n function marshal(name) {\n return modules[name];\n }\n\n var modules = {};\n\n function using(depends, task) {\n HTMLImports.whenImportsReady(function() {\n withDependencies(task, depends);\n });\n };\n\n // exports\n\n scope.marshal = marshal;\n scope.module = module;\n scope.using = using;\n\n})(window);","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(scope) {\n\nvar iterations = 0;\nvar callbacks = [];\nvar twiddle = document.createTextNode('');\n\nfunction endOfMicrotask(callback) {\n twiddle.textContent = iterations++;\n callbacks.push(callback);\n}\n\nfunction atEndOfMicrotask() {\n while (callbacks.length) {\n callbacks.shift()();\n }\n}\n\nnew (window.MutationObserver || JsMutationObserver)(atEndOfMicrotask)\n .observe(twiddle, {characterData: true})\n ;\n\n// exports\n\nscope.endOfMicrotask = endOfMicrotask;\n\n})(Platform);\n\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n(function(scope) {\n\nvar urlResolver = {\n resolveDom: function(root, url) {\n url = url || root.ownerDocument.baseURI;\n this.resolveAttributes(root, url);\n this.resolveStyles(root, url);\n // handle template.content\n var templates = root.querySelectorAll('template');\n if (templates) {\n for (var i = 0, l = templates.length, t; (i < l) && (t = templates[i]); i++) {\n if (t.content) {\n this.resolveDom(t.content, url);\n }\n }\n }\n },\n resolveTemplate: function(template) {\n this.resolveDom(template.content, template.ownerDocument.baseURI);\n },\n resolveStyles: function(root, url) {\n var styles = root.querySelectorAll('style');\n if (styles) {\n for (var i = 0, l = styles.length, s; (i < l) && (s = styles[i]); i++) {\n this.resolveStyle(s, url);\n }\n }\n },\n resolveStyle: function(style, url) {\n url = url || style.ownerDocument.baseURI;\n style.textContent = this.resolveCssText(style.textContent, url);\n },\n resolveCssText: function(cssText, baseUrl) {\n cssText = replaceUrlsInCssText(cssText, baseUrl, CSS_URL_REGEXP);\n return replaceUrlsInCssText(cssText, baseUrl, CSS_IMPORT_REGEXP);\n },\n resolveAttributes: function(root, url) {\n if (root.hasAttributes && root.hasAttributes()) {\n this.resolveElementAttributes(root, url);\n }\n // search for attributes that host urls\n var nodes = root && root.querySelectorAll(URL_ATTRS_SELECTOR);\n if (nodes) {\n for (var i = 0, l = nodes.length, n; (i < l) && (n = nodes[i]); i++) {\n this.resolveElementAttributes(n, url);\n }\n }\n },\n resolveElementAttributes: function(node, url) {\n url = url || node.ownerDocument.baseURI;\n URL_ATTRS.forEach(function(v) {\n var attr = node.attributes[v];\n var value = attr && attr.value;\n var replacement;\n if (value && value.search(URL_TEMPLATE_SEARCH) < 0) {\n if (v === 'style') {\n replacement = replaceUrlsInCssText(value, url, CSS_URL_REGEXP);\n } else {\n replacement = resolveRelativeUrl(url, value);\n }\n attr.value = replacement;\n }\n });\n }\n};\n\nvar CSS_URL_REGEXP = /(url\\()([^)]*)(\\))/g;\nvar CSS_IMPORT_REGEXP = /(@import[\\s]+(?!url\\())([^;]*)(;)/g;\nvar URL_ATTRS = ['href', 'src', 'action', 'style'];\nvar URL_ATTRS_SELECTOR = '[' + URL_ATTRS.join('],[') + ']';\nvar URL_TEMPLATE_SEARCH = '{{.*}}';\n\nfunction replaceUrlsInCssText(cssText, baseUrl, regexp) {\n return cssText.replace(regexp, function(m, pre, url, post) {\n var urlPath = url.replace(/[\"']/g, '');\n urlPath = resolveRelativeUrl(baseUrl, urlPath);\n return pre + '\\'' + urlPath + '\\'' + post;\n });\n}\n\nfunction resolveRelativeUrl(baseUrl, url) {\n var u = new URL(url, baseUrl);\n return makeDocumentRelPath(u.href);\n}\n\nfunction makeDocumentRelPath(url) {\n var root = document.location;\n var u = new URL(url, root);\n if (u.host === root.host && u.port === root.port &&\n u.protocol === root.protocol) {\n return makeRelPath(root.pathname, u.pathname);\n } else {\n return url;\n }\n}\n\n// make a relative path from source to target\nfunction makeRelPath(source, target) {\n var s = source.split('/');\n var t = target.split('/');\n while (s.length && s[0] === t[0]){\n s.shift();\n t.shift();\n }\n for (var i = 0, l = s.length - 1; i < l; i++) {\n t.unshift('..');\n }\n return t.join('/');\n}\n\n// exports\nscope.urlResolver = urlResolver;\n\n})(Platform);\n","/*\n * Copyright 2012 The Polymer Authors. All rights reserved.\n * Use of this source code is goverened by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n(function(global) {\n\n var registrationsTable = new WeakMap();\n\n // We use setImmediate or postMessage for our future callback.\n var setImmediate = window.msSetImmediate;\n\n // Use post message to emulate setImmediate.\n if (!setImmediate) {\n var setImmediateQueue = [];\n var sentinel = String(Math.random());\n window.addEventListener('message', function(e) {\n if (e.data === sentinel) {\n var queue = setImmediateQueue;\n setImmediateQueue = [];\n queue.forEach(function(func) {\n func();\n });\n }\n });\n setImmediate = function(func) {\n setImmediateQueue.push(func);\n window.postMessage(sentinel, '*');\n };\n }\n\n // This is used to ensure that we never schedule 2 callas to setImmediate\n var isScheduled = false;\n\n // Keep track of observers that needs to be notified next time.\n var scheduledObservers = [];\n\n /**\n * Schedules |dispatchCallback| to be called in the future.\n * @param {MutationObserver} observer\n */\n function scheduleCallback(observer) {\n scheduledObservers.push(observer);\n if (!isScheduled) {\n isScheduled = true;\n setImmediate(dispatchCallbacks);\n }\n }\n\n function wrapIfNeeded(node) {\n return window.ShadowDOMPolyfill &&\n window.ShadowDOMPolyfill.wrapIfNeeded(node) ||\n node;\n }\n\n function dispatchCallbacks() {\n // http://dom.spec.whatwg.org/#mutation-observers\n\n isScheduled = false; // Used to allow a new setImmediate call above.\n\n var observers = scheduledObservers;\n scheduledObservers = [];\n // Sort observers based on their creation UID (incremental).\n observers.sort(function(o1, o2) {\n return o1.uid_ - o2.uid_;\n });\n\n var anyNonEmpty = false;\n observers.forEach(function(observer) {\n\n // 2.1, 2.2\n var queue = observer.takeRecords();\n // 2.3. Remove all transient registered observers whose observer is mo.\n removeTransientObserversFor(observer);\n\n // 2.4\n if (queue.length) {\n observer.callback_(queue, observer);\n anyNonEmpty = true;\n }\n });\n\n // 3.\n if (anyNonEmpty)\n dispatchCallbacks();\n }\n\n function removeTransientObserversFor(observer) {\n observer.nodes_.forEach(function(node) {\n var registrations = registrationsTable.get(node);\n if (!registrations)\n return;\n registrations.forEach(function(registration) {\n if (registration.observer === observer)\n registration.removeTransientObservers();\n });\n });\n }\n\n /**\n * This function is used for the \"For each registered observer observer (with\n * observer's options as options) in target's list of registered observers,\n * run these substeps:\" and the \"For each ancestor ancestor of target, and for\n * each registered observer observer (with options options) in ancestor's list\n * of registered observers, run these substeps:\" part of the algorithms. The\n * |options.subtree| is checked to ensure that the callback is called\n * correctly.\n *\n * @param {Node} target\n * @param {function(MutationObserverInit):MutationRecord} callback\n */\n function forEachAncestorAndObserverEnqueueRecord(target, callback) {\n for (var node = target; node; node = node.parentNode) {\n var registrations = registrationsTable.get(node);\n\n if (registrations) {\n for (var j = 0; j < registrations.length; j++) {\n var registration = registrations[j];\n var options = registration.options;\n\n // Only target ignores subtree.\n if (node !== target && !options.subtree)\n continue;\n\n var record = callback(options);\n if (record)\n registration.enqueue(record);\n }\n }\n }\n }\n\n var uidCounter = 0;\n\n /**\n * The class that maps to the DOM MutationObserver interface.\n * @param {Function} callback.\n * @constructor\n */\n function JsMutationObserver(callback) {\n this.callback_ = callback;\n this.nodes_ = [];\n this.records_ = [];\n this.uid_ = ++uidCounter;\n }\n\n JsMutationObserver.prototype = {\n observe: function(target, options) {\n target = wrapIfNeeded(target);\n\n // 1.1\n if (!options.childList && !options.attributes && !options.characterData ||\n\n // 1.2\n options.attributeOldValue && !options.attributes ||\n\n // 1.3\n options.attributeFilter && options.attributeFilter.length &&\n !options.attributes ||\n\n // 1.4\n options.characterDataOldValue && !options.characterData) {\n\n throw new SyntaxError();\n }\n\n var registrations = registrationsTable.get(target);\n if (!registrations)\n registrationsTable.set(target, registrations = []);\n\n // 2\n // If target's list of registered observers already includes a registered\n // observer associated with the context object, replace that registered\n // observer's options with options.\n var registration;\n for (var i = 0; i < registrations.length; i++) {\n if (registrations[i].observer === this) {\n registration = registrations[i];\n registration.removeListeners();\n registration.options = options;\n break;\n }\n }\n\n // 3.\n // Otherwise, add a new registered observer to target's list of registered\n // observers with the context object as the observer and options as the\n // options, and add target to context object's list of nodes on which it\n // is registered.\n if (!registration) {\n registration = new Registration(this, target, options);\n registrations.push(registration);\n this.nodes_.push(target);\n }\n\n registration.addListeners();\n },\n\n disconnect: function() {\n this.nodes_.forEach(function(node) {\n var registrations = registrationsTable.get(node);\n for (var i = 0; i < registrations.length; i++) {\n var registration = registrations[i];\n if (registration.observer === this) {\n registration.removeListeners();\n registrations.splice(i, 1);\n // Each node can only have one registered observer associated with\n // this observer.\n break;\n }\n }\n }, this);\n this.records_ = [];\n },\n\n takeRecords: function() {\n var copyOfRecords = this.records_;\n this.records_ = [];\n return copyOfRecords;\n }\n };\n\n /**\n * @param {string} type\n * @param {Node} target\n * @constructor\n */\n function MutationRecord(type, target) {\n this.type = type;\n this.target = target;\n this.addedNodes = [];\n this.removedNodes = [];\n this.previousSibling = null;\n this.nextSibling = null;\n this.attributeName = null;\n this.attributeNamespace = null;\n this.oldValue = null;\n }\n\n function copyMutationRecord(original) {\n var record = new MutationRecord(original.type, original.target);\n record.addedNodes = original.addedNodes.slice();\n record.removedNodes = original.removedNodes.slice();\n record.previousSibling = original.previousSibling;\n record.nextSibling = original.nextSibling;\n record.attributeName = original.attributeName;\n record.attributeNamespace = original.attributeNamespace;\n record.oldValue = original.oldValue;\n return record;\n };\n\n // We keep track of the two (possibly one) records used in a single mutation.\n var currentRecord, recordWithOldValue;\n\n /**\n * Creates a record without |oldValue| and caches it as |currentRecord| for\n * later use.\n * @param {string} oldValue\n * @return {MutationRecord}\n */\n function getRecord(type, target) {\n return currentRecord = new MutationRecord(type, target);\n }\n\n /**\n * Gets or creates a record with |oldValue| based in the |currentRecord|\n * @param {string} oldValue\n * @return {MutationRecord}\n */\n function getRecordWithOldValue(oldValue) {\n if (recordWithOldValue)\n return recordWithOldValue;\n recordWithOldValue = copyMutationRecord(currentRecord);\n recordWithOldValue.oldValue = oldValue;\n return recordWithOldValue;\n }\n\n function clearRecords() {\n currentRecord = recordWithOldValue = undefined;\n }\n\n /**\n * @param {MutationRecord} record\n * @return {boolean} Whether the record represents a record from the current\n * mutation event.\n */\n function recordRepresentsCurrentMutation(record) {\n return record === recordWithOldValue || record === currentRecord;\n }\n\n /**\n * Selects which record, if any, to replace the last record in the queue.\n * This returns |null| if no record should be replaced.\n *\n * @param {MutationRecord} lastRecord\n * @param {MutationRecord} newRecord\n * @param {MutationRecord}\n */\n function selectRecord(lastRecord, newRecord) {\n if (lastRecord === newRecord)\n return lastRecord;\n\n // Check if the the record we are adding represents the same record. If\n // so, we keep the one with the oldValue in it.\n if (recordWithOldValue && recordRepresentsCurrentMutation(lastRecord))\n return recordWithOldValue;\n\n return null;\n }\n\n /**\n * Class used to represent a registered observer.\n * @param {MutationObserver} observer\n * @param {Node} target\n * @param {MutationObserverInit} options\n * @constructor\n */\n function Registration(observer, target, options) {\n this.observer = observer;\n this.target = target;\n this.options = options;\n this.transientObservedNodes = [];\n }\n\n Registration.prototype = {\n enqueue: function(record) {\n var records = this.observer.records_;\n var length = records.length;\n\n // There are cases where we replace the last record with the new record.\n // For example if the record represents the same mutation we need to use\n // the one with the oldValue. If we get same record (this can happen as we\n // walk up the tree) we ignore the new record.\n if (records.length > 0) {\n var lastRecord = records[length - 1];\n var recordToReplaceLast = selectRecord(lastRecord, record);\n if (recordToReplaceLast) {\n records[length - 1] = recordToReplaceLast;\n return;\n }\n } else {\n scheduleCallback(this.observer);\n }\n\n records[length] = record;\n },\n\n addListeners: function() {\n this.addListeners_(this.target);\n },\n\n addListeners_: function(node) {\n var options = this.options;\n if (options.attributes)\n node.addEventListener('DOMAttrModified', this, true);\n\n if (options.characterData)\n node.addEventListener('DOMCharacterDataModified', this, true);\n\n if (options.childList)\n node.addEventListener('DOMNodeInserted', this, true);\n\n if (options.childList || options.subtree)\n node.addEventListener('DOMNodeRemoved', this, true);\n },\n\n removeListeners: function() {\n this.removeListeners_(this.target);\n },\n\n removeListeners_: function(node) {\n var options = this.options;\n if (options.attributes)\n node.removeEventListener('DOMAttrModified', this, true);\n\n if (options.characterData)\n node.removeEventListener('DOMCharacterDataModified', this, true);\n\n if (options.childList)\n node.removeEventListener('DOMNodeInserted', this, true);\n\n if (options.childList || options.subtree)\n node.removeEventListener('DOMNodeRemoved', this, true);\n },\n\n /**\n * Adds a transient observer on node. The transient observer gets removed\n * next time we deliver the change records.\n * @param {Node} node\n */\n addTransientObserver: function(node) {\n // Don't add transient observers on the target itself. We already have all\n // the required listeners set up on the target.\n if (node === this.target)\n return;\n\n this.addListeners_(node);\n this.transientObservedNodes.push(node);\n var registrations = registrationsTable.get(node);\n if (!registrations)\n registrationsTable.set(node, registrations = []);\n\n // We know that registrations does not contain this because we already\n // checked if node === this.target.\n registrations.push(this);\n },\n\n removeTransientObservers: function() {\n var transientObservedNodes = this.transientObservedNodes;\n this.transientObservedNodes = [];\n\n transientObservedNodes.forEach(function(node) {\n // Transient observers are never added to the target.\n this.removeListeners_(node);\n\n var registrations = registrationsTable.get(node);\n for (var i = 0; i < registrations.length; i++) {\n if (registrations[i] === this) {\n registrations.splice(i, 1);\n // Each node can only have one registered observer associated with\n // this observer.\n break;\n }\n }\n }, this);\n },\n\n handleEvent: function(e) {\n // Stop propagation since we are managing the propagation manually.\n // This means that other mutation events on the page will not work\n // correctly but that is by design.\n e.stopImmediatePropagation();\n\n switch (e.type) {\n case 'DOMAttrModified':\n // http://dom.spec.whatwg.org/#concept-mo-queue-attributes\n\n var name = e.attrName;\n var namespace = e.relatedNode.namespaceURI;\n var target = e.target;\n\n // 1.\n var record = new getRecord('attributes', target);\n record.attributeName = name;\n record.attributeNamespace = namespace;\n\n // 2.\n var oldValue =\n e.attrChange === MutationEvent.ADDITION ? null : e.prevValue;\n\n forEachAncestorAndObserverEnqueueRecord(target, function(options) {\n // 3.1, 4.2\n if (!options.attributes)\n return;\n\n // 3.2, 4.3\n if (options.attributeFilter && options.attributeFilter.length &&\n options.attributeFilter.indexOf(name) === -1 &&\n options.attributeFilter.indexOf(namespace) === -1) {\n return;\n }\n // 3.3, 4.4\n if (options.attributeOldValue)\n return getRecordWithOldValue(oldValue);\n\n // 3.4, 4.5\n return record;\n });\n\n break;\n\n case 'DOMCharacterDataModified':\n // http://dom.spec.whatwg.org/#concept-mo-queue-characterdata\n var target = e.target;\n\n // 1.\n var record = getRecord('characterData', target);\n\n // 2.\n var oldValue = e.prevValue;\n\n\n forEachAncestorAndObserverEnqueueRecord(target, function(options) {\n // 3.1, 4.2\n if (!options.characterData)\n return;\n\n // 3.2, 4.3\n if (options.characterDataOldValue)\n return getRecordWithOldValue(oldValue);\n\n // 3.3, 4.4\n return record;\n });\n\n break;\n\n case 'DOMNodeRemoved':\n this.addTransientObserver(e.target);\n // Fall through.\n case 'DOMNodeInserted':\n // http://dom.spec.whatwg.org/#concept-mo-queue-childlist\n var target = e.relatedNode;\n var changedNode = e.target;\n var addedNodes, removedNodes;\n if (e.type === 'DOMNodeInserted') {\n addedNodes = [changedNode];\n removedNodes = [];\n } else {\n\n addedNodes = [];\n removedNodes = [changedNode];\n }\n var previousSibling = changedNode.previousSibling;\n var nextSibling = changedNode.nextSibling;\n\n // 1.\n var record = getRecord('childList', target);\n record.addedNodes = addedNodes;\n record.removedNodes = removedNodes;\n record.previousSibling = previousSibling;\n record.nextSibling = nextSibling;\n\n forEachAncestorAndObserverEnqueueRecord(target, function(options) {\n // 2.1, 3.2\n if (!options.childList)\n return;\n\n // 2.2, 3.3\n return record;\n });\n\n }\n\n clearRecords();\n }\n };\n\n global.JsMutationObserver = JsMutationObserver;\n\n if (!global.MutationObserver)\n global.MutationObserver = JsMutationObserver;\n\n\n})(this);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\nwindow.HTMLImports = window.HTMLImports || {flags:{}};","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n(function(scope) {\n\n // imports\n var path = scope.path;\n var xhr = scope.xhr;\n var flags = scope.flags;\n\n // TODO(sorvell): this loader supports a dynamic list of urls\n // and an oncomplete callback that is called when the loader is done.\n // The polyfill currently does *not* need this dynamism or the onComplete\n // concept. Because of this, the loader could be simplified quite a bit.\n var Loader = function(onLoad, onComplete) {\n this.cache = {};\n this.onload = onLoad;\n this.oncomplete = onComplete;\n this.inflight = 0;\n this.pending = {};\n };\n\n Loader.prototype = {\n addNodes: function(nodes) {\n // number of transactions to complete\n this.inflight += nodes.length;\n // commence transactions\n for (var i=0, l=nodes.length, n; (i<l) && (n=nodes[i]); i++) {\n this.require(n);\n }\n // anything to do?\n this.checkDone();\n },\n addNode: function(node) {\n // number of transactions to complete\n this.inflight++;\n // commence transactions\n this.require(node);\n // anything to do?\n this.checkDone();\n },\n require: function(elt) {\n var url = elt.src || elt.href;\n // ensure we have a standard url that can be used\n // reliably for deduping.\n // TODO(sjmiles): ad-hoc\n elt.__nodeUrl = url;\n // deduplication\n if (!this.dedupe(url, elt)) {\n // fetch this resource\n this.fetch(url, elt);\n }\n },\n dedupe: function(url, elt) {\n if (this.pending[url]) {\n // add to list of nodes waiting for inUrl\n this.pending[url].push(elt);\n // don't need fetch\n return true;\n }\n var resource;\n if (this.cache[url]) {\n this.onload(url, elt, this.cache[url]);\n // finished this transaction\n this.tail();\n // don't need fetch\n return true;\n }\n // first node waiting for inUrl\n this.pending[url] = [elt];\n // need fetch (not a dupe)\n return false;\n },\n fetch: function(url, elt) {\n flags.load && console.log('fetch', url, elt);\n if (url.match(/^data:/)) {\n // Handle Data URI Scheme\n var pieces = url.split(',');\n var header = pieces[0];\n var body = pieces[1];\n if(header.indexOf(';base64') > -1) {\n body = atob(body);\n } else {\n body = decodeURIComponent(body);\n }\n setTimeout(function() {\n this.receive(url, elt, null, body);\n }.bind(this), 0);\n } else {\n var receiveXhr = function(err, resource) {\n this.receive(url, elt, err, resource);\n }.bind(this);\n xhr.load(url, receiveXhr);\n // TODO(sorvell): blocked on)\n // https://code.google.com/p/chromium/issues/detail?id=257221\n // xhr'ing for a document makes scripts in imports runnable; otherwise\n // they are not; however, it requires that we have doctype=html in\n // the import which is unacceptable. This is only needed on Chrome\n // to avoid the bug above.\n /*\n if (isDocumentLink(elt)) {\n xhr.loadDocument(url, receiveXhr);\n } else {\n xhr.load(url, receiveXhr);\n }\n */\n }\n },\n receive: function(url, elt, err, resource) {\n this.cache[url] = resource;\n var $p = this.pending[url];\n for (var i=0, l=$p.length, p; (i<l) && (p=$p[i]); i++) {\n //if (!err) {\n this.onload(url, p, resource);\n //}\n this.tail();\n }\n this.pending[url] = null;\n },\n tail: function() {\n --this.inflight;\n this.checkDone();\n },\n checkDone: function() {\n if (!this.inflight) {\n this.oncomplete();\n }\n }\n };\n\n xhr = xhr || {\n async: true,\n ok: function(request) {\n return (request.status >= 200 && request.status < 300)\n || (request.status === 304)\n || (request.status === 0);\n },\n load: function(url, next, nextContext) {\n var request = new XMLHttpRequest();\n if (scope.flags.debug || scope.flags.bust) {\n url += '?' + Math.random();\n }\n request.open('GET', url, xhr.async);\n request.addEventListener('readystatechange', function(e) {\n if (request.readyState === 4) {\n next.call(nextContext, !xhr.ok(request) && request,\n request.response || request.responseText, url);\n }\n });\n request.send();\n return request;\n },\n loadDocument: function(url, next, nextContext) {\n this.load(url, next, nextContext).responseType = 'document';\n }\n };\n\n // exports\n scope.xhr = xhr;\n scope.Loader = Loader;\n\n})(window.HTMLImports);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n(function(scope) {\n\nvar IMPORT_LINK_TYPE = 'import';\nvar flags = scope.flags;\nvar isIe = /Trident/.test(navigator.userAgent);\n// TODO(sorvell): SD polyfill intrusion\nvar mainDoc = window.ShadowDOMPolyfill ? \n window.ShadowDOMPolyfill.wrapIfNeeded(document) : document;\n\n// importParser\n// highlander object to manage parsing of imports\n// parses import related elements\n// and ensures proper parse order\n// parse order is enforced by crawling the tree and monitoring which elements\n// have been parsed; async parsing is also supported.\n\n// highlander object for parsing a document tree\nvar importParser = {\n // parse selectors for main document elements\n documentSelectors: 'link[rel=' + IMPORT_LINK_TYPE + ']',\n // parse selectors for import document elements\n importsSelectors: [\n 'link[rel=' + IMPORT_LINK_TYPE + ']',\n 'link[rel=stylesheet]',\n 'style',\n 'script:not([type])',\n 'script[type=\"text/javascript\"]'\n ].join(','),\n map: {\n link: 'parseLink',\n script: 'parseScript',\n style: 'parseStyle'\n },\n // try to parse the next import in the tree\n parseNext: function() {\n var next = this.nextToParse();\n if (next) {\n this.parse(next);\n }\n },\n parse: function(elt) {\n if (this.isParsed(elt)) {\n flags.parse && console.log('[%s] is already parsed', elt.localName);\n return;\n }\n var fn = this[this.map[elt.localName]];\n if (fn) {\n this.markParsing(elt);\n fn.call(this, elt);\n }\n },\n // only 1 element may be parsed at a time; parsing is async so, each\n // parsing implementation must inform the system that parsing is complete\n // via markParsingComplete.\n markParsing: function(elt) {\n flags.parse && console.log('parsing', elt);\n this.parsingElement = elt;\n },\n markParsingComplete: function(elt) {\n elt.__importParsed = true;\n if (elt.__importElement) {\n elt.__importElement.__importParsed = true;\n }\n this.parsingElement = null;\n flags.parse && console.log('completed', elt);\n this.parseNext();\n },\n parseImport: function(elt) {\n elt.import.__importParsed = true;\n // TODO(sorvell): consider if there's a better way to do this;\n // expose an imports parsing hook; this is needed, for example, by the\n // CustomElements polyfill.\n if (HTMLImports.__importsParsingHook) {\n HTMLImports.__importsParsingHook(elt);\n }\n // fire load event\n if (elt.__resource) {\n elt.dispatchEvent(new CustomEvent('load', {bubbles: false})); \n } else {\n elt.dispatchEvent(new CustomEvent('error', {bubbles: false}));\n }\n // TODO(sorvell): workaround for Safari addEventListener not working\n // for elements not in the main document.\n if (elt.__pending) {\n var fn;\n while (elt.__pending.length) {\n fn = elt.__pending.shift();\n if (fn) {\n fn({target: elt});\n }\n }\n }\n this.markParsingComplete(elt);\n },\n parseLink: function(linkElt) {\n if (nodeIsImport(linkElt)) {\n this.parseImport(linkElt);\n } else {\n // make href absolute\n linkElt.href = linkElt.href;\n this.parseGeneric(linkElt);\n }\n },\n parseStyle: function(elt) {\n // TODO(sorvell): style element load event can just not fire so clone styles\n var src = elt;\n elt = cloneStyle(elt);\n elt.__importElement = src;\n this.parseGeneric(elt);\n },\n parseGeneric: function(elt) {\n this.trackElement(elt);\n document.head.appendChild(elt);\n },\n // tracks when a loadable element has loaded\n trackElement: function(elt, callback) {\n var self = this;\n var done = function(e) {\n if (callback) {\n callback(e);\n }\n self.markParsingComplete(elt);\n };\n elt.addEventListener('load', done);\n elt.addEventListener('error', done);\n\n // NOTE: IE does not fire \"load\" event for styles that have already loaded\n // This is in violation of the spec, so we try our hardest to work around it\n if (isIe && elt.localName === 'style') {\n var fakeLoad = false;\n // If there's not @import in the textContent, assume it has loaded\n if (elt.textContent.indexOf('@import') == -1) {\n fakeLoad = true;\n // if we have a sheet, we have been parsed\n } else if (elt.sheet) {\n fakeLoad = true;\n var csr = elt.sheet.cssRules;\n var len = csr ? csr.length : 0;\n // search the rules for @import's\n for (var i = 0, r; (i < len) && (r = csr[i]); i++) {\n if (r.type === CSSRule.IMPORT_RULE) {\n // if every @import has resolved, fake the load\n fakeLoad = fakeLoad && Boolean(r.styleSheet);\n }\n }\n }\n // dispatch a fake load event and continue parsing\n if (fakeLoad) {\n elt.dispatchEvent(new CustomEvent('load', {bubbles: false}));\n }\n }\n },\n // NOTE: execute scripts by injecting them and watching for the load/error\n // event. Inline scripts are handled via dataURL's because browsers tend to\n // provide correct parsing errors in this case. If this has any compatibility\n // issues, we can switch to injecting the inline script with textContent.\n // Scripts with dataURL's do not appear to generate load events and therefore\n // we assume they execute synchronously.\n parseScript: function(scriptElt) {\n var script = document.createElement('script');\n script.__importElement = scriptElt;\n script.src = scriptElt.src ? scriptElt.src : \n generateScriptDataUrl(scriptElt);\n scope.currentScript = scriptElt;\n this.trackElement(script, function(e) {\n script.parentNode.removeChild(script);\n scope.currentScript = null; \n });\n document.head.appendChild(script);\n },\n // determine the next element in the tree which should be parsed\n nextToParse: function() {\n return !this.parsingElement && this.nextToParseInDoc(mainDoc);\n },\n nextToParseInDoc: function(doc, link) {\n var nodes = doc.querySelectorAll(this.parseSelectorsForNode(doc));\n for (var i=0, l=nodes.length, p=0, n; (i<l) && (n=nodes[i]); i++) {\n if (!this.isParsed(n)) {\n if (this.hasResource(n)) {\n return nodeIsImport(n) ? this.nextToParseInDoc(n.import, n) : n;\n } else {\n return;\n }\n }\n }\n // all nodes have been parsed, ready to parse import, if any\n return link;\n },\n // return the set of parse selectors relevant for this node.\n parseSelectorsForNode: function(node) {\n var doc = node.ownerDocument || node;\n return doc === mainDoc ? this.documentSelectors : this.importsSelectors;\n },\n isParsed: function(node) {\n return node.__importParsed;\n },\n hasResource: function(node) {\n if (nodeIsImport(node) && !node.import) {\n return false;\n }\n return true;\n }\n};\n\nfunction nodeIsImport(elt) {\n return (elt.localName === 'link') && (elt.rel === IMPORT_LINK_TYPE);\n}\n\nfunction generateScriptDataUrl(script) {\n var scriptContent = generateScriptContent(script), b64;\n try {\n b64 = btoa(scriptContent);\n } catch(e) {\n b64 = btoa(unescape(encodeURIComponent(scriptContent)));\n console.warn('Script contained non-latin characters that were forced ' +\n 'to latin. Some characters may be wrong.', script);\n }\n return 'data:text/javascript;base64,' + b64;\n}\n\nfunction generateScriptContent(script) {\n return script.textContent + generateSourceMapHint(script);\n}\n\n// calculate source map hint\nfunction generateSourceMapHint(script) {\n var moniker = script.__nodeUrl;\n if (!moniker) {\n moniker = script.ownerDocument.baseURI;\n // there could be more than one script this url\n var tag = '[' + Math.floor((Math.random()+1)*1000) + ']';\n // TODO(sjmiles): Polymer hack, should be pluggable if we need to allow \n // this sort of thing\n var matches = script.textContent.match(/Polymer\\(['\"]([^'\"]*)/);\n tag = matches && matches[1] || tag;\n // tag the moniker\n moniker += '/' + tag + '.js';\n }\n return '\\n//# sourceURL=' + moniker + '\\n';\n}\n\n// style/stylesheet handling\n\n// clone style with proper path resolution for main document\n// NOTE: styles are the only elements that require direct path fixup.\nfunction cloneStyle(style) {\n var clone = style.ownerDocument.createElement('style');\n clone.textContent = style.textContent;\n path.resolveUrlsInStyle(clone);\n return clone;\n}\n\n// path fixup: style elements in imports must be made relative to the main \n// document. We fixup url's in url() and @import.\nvar CSS_URL_REGEXP = /(url\\()([^)]*)(\\))/g;\nvar CSS_IMPORT_REGEXP = /(@import[\\s]+(?!url\\())([^;]*)(;)/g;\n\nvar path = {\n resolveUrlsInStyle: function(style) {\n var doc = style.ownerDocument;\n var resolver = doc.createElement('a');\n style.textContent = this.resolveUrlsInCssText(style.textContent, resolver);\n return style; \n },\n resolveUrlsInCssText: function(cssText, urlObj) {\n var r = this.replaceUrls(cssText, urlObj, CSS_URL_REGEXP);\n r = this.replaceUrls(r, urlObj, CSS_IMPORT_REGEXP);\n return r;\n },\n replaceUrls: function(text, urlObj, regexp) {\n return text.replace(regexp, function(m, pre, url, post) {\n var urlPath = url.replace(/[\"']/g, '');\n urlObj.href = urlPath;\n urlPath = urlObj.href;\n return pre + '\\'' + urlPath + '\\'' + post;\n }); \n }\n}\n\n// exports\nscope.parser = importParser;\nscope.path = path;\nscope.isIE = isIe;\n\n})(HTMLImports);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n(function(scope) {\n\nvar hasNative = ('import' in document.createElement('link'));\nvar useNative = hasNative;\nvar flags = scope.flags;\nvar IMPORT_LINK_TYPE = 'import';\n\n// TODO(sorvell): SD polyfill intrusion\nvar mainDoc = window.ShadowDOMPolyfill ? \n ShadowDOMPolyfill.wrapIfNeeded(document) : document;\n\nif (!useNative) {\n\n // imports\n var xhr = scope.xhr;\n var Loader = scope.Loader;\n var parser = scope.parser;\n\n // importer\n // highlander object to manage loading of imports\n\n // for any document, importer:\n // - loads any linked import documents (with deduping)\n\n var importer = {\n documents: {},\n // nodes to load in the mian document\n documentPreloadSelectors: 'link[rel=' + IMPORT_LINK_TYPE + ']',\n // nodes to load in imports\n importsPreloadSelectors: [\n 'link[rel=' + IMPORT_LINK_TYPE + ']'\n ].join(','),\n loadNode: function(node) {\n importLoader.addNode(node);\n },\n // load all loadable elements within the parent element\n loadSubtree: function(parent) {\n var nodes = this.marshalNodes(parent);\n // add these nodes to loader's queue\n importLoader.addNodes(nodes);\n },\n marshalNodes: function(parent) {\n // all preloadable nodes in inDocument\n return parent.querySelectorAll(this.loadSelectorsForNode(parent));\n },\n // find the proper set of load selectors for a given node\n loadSelectorsForNode: function(node) {\n var doc = node.ownerDocument || node;\n return doc === mainDoc ? this.documentPreloadSelectors :\n this.importsPreloadSelectors;\n },\n loaded: function(url, elt, resource) {\n flags.load && console.log('loaded', url, elt);\n // store generic resource\n // TODO(sorvell): fails for nodes inside <template>.content\n // see https://code.google.com/p/chromium/issues/detail?id=249381.\n elt.__resource = resource;\n if (isDocumentLink(elt)) {\n var doc = this.documents[url];\n // if we've never seen a document at this url\n if (!doc) {\n // generate an HTMLDocument from data\n doc = makeDocument(resource, url);\n doc.__importLink = elt;\n // TODO(sorvell): we cannot use MO to detect parsed nodes because\n // SD polyfill does not report these as mutations.\n this.bootDocument(doc);\n // cache document\n this.documents[url] = doc;\n }\n // don't store import record until we're actually loaded\n // store document resource\n elt.import = doc;\n }\n parser.parseNext();\n },\n bootDocument: function(doc) {\n this.loadSubtree(doc);\n this.observe(doc);\n parser.parseNext();\n },\n loadedAll: function() {\n parser.parseNext();\n }\n };\n\n // loader singleton\n var importLoader = new Loader(importer.loaded.bind(importer), \n importer.loadedAll.bind(importer));\n\n function isDocumentLink(elt) {\n return isLinkRel(elt, IMPORT_LINK_TYPE);\n }\n\n function isLinkRel(elt, rel) {\n return elt.localName === 'link' && elt.getAttribute('rel') === rel;\n }\n\n function isScript(elt) {\n return elt.localName === 'script';\n }\n\n function makeDocument(resource, url) {\n // create a new HTML document\n var doc = resource;\n if (!(doc instanceof Document)) {\n doc = document.implementation.createHTMLDocument(IMPORT_LINK_TYPE);\n }\n // cache the new document's source url\n doc._URL = url;\n // establish a relative path via <base>\n var base = doc.createElement('base');\n base.setAttribute('href', url);\n // add baseURI support to browsers (IE) that lack it.\n if (!doc.baseURI) {\n doc.baseURI = url;\n }\n // ensure UTF-8 charset\n var meta = doc.createElement('meta');\n meta.setAttribute('charset', 'utf-8');\n\n doc.head.appendChild(meta);\n doc.head.appendChild(base);\n // install HTML last as it may trigger CustomElement upgrades\n // TODO(sjmiles): problem wrt to template boostrapping below,\n // template bootstrapping must (?) come before element upgrade\n // but we cannot bootstrap templates until they are in a document\n // which is too late\n if (!(resource instanceof Document)) {\n // install html\n doc.body.innerHTML = resource;\n }\n // TODO(sorvell): ideally this code is not aware of Template polyfill,\n // but for now the polyfill needs help to bootstrap these templates\n if (window.HTMLTemplateElement && HTMLTemplateElement.bootstrap) {\n HTMLTemplateElement.bootstrap(doc);\n }\n return doc;\n }\n} else {\n // do nothing if using native imports\n var importer = {};\n}\n\n// NOTE: We cannot polyfill document.currentScript because it's not possible\n// both to override and maintain the ability to capture the native value;\n// therefore we choose to expose _currentScript both when native imports\n// and the polyfill are in use.\nvar currentScriptDescriptor = {\n get: function() {\n return HTMLImports.currentScript || document.currentScript;\n },\n configurable: true\n};\n\nObject.defineProperty(document, '_currentScript', currentScriptDescriptor);\nObject.defineProperty(mainDoc, '_currentScript', currentScriptDescriptor);\n\n// Polyfill document.baseURI for browsers without it.\nif (!document.baseURI) {\n var baseURIDescriptor = {\n get: function() {\n return window.location.href;\n },\n configurable: true\n };\n\n Object.defineProperty(document, 'baseURI', baseURIDescriptor);\n Object.defineProperty(mainDoc, 'baseURI', baseURIDescriptor);\n}\n\n// call a callback when all HTMLImports in the document at call (or at least\n// document ready) time have loaded.\n// 1. ensure the document is in a ready state (has dom), then \n// 2. watch for loading of imports and call callback when done\nfunction whenImportsReady(callback, doc) {\n doc = doc || mainDoc;\n // if document is loading, wait and try again\n whenDocumentReady(function() {\n watchImportsLoad(callback, doc);\n }, doc);\n}\n\n// call the callback when the document is in a ready state (has dom)\nvar requiredReadyState = HTMLImports.isIE ? 'complete' : 'interactive';\nvar READY_EVENT = 'readystatechange';\nfunction isDocumentReady(doc) {\n return (doc.readyState === 'complete' ||\n doc.readyState === requiredReadyState);\n}\n\n// call <callback> when we ensure the document is in a ready state\nfunction whenDocumentReady(callback, doc) {\n if (!isDocumentReady(doc)) {\n var checkReady = function() {\n if (doc.readyState === 'complete' || \n doc.readyState === requiredReadyState) {\n doc.removeEventListener(READY_EVENT, checkReady);\n whenDocumentReady(callback, doc);\n }\n }\n doc.addEventListener(READY_EVENT, checkReady);\n } else if (callback) {\n callback();\n }\n}\n\n// call <callback> when we ensure all imports have loaded\nfunction watchImportsLoad(callback, doc) {\n var imports = doc.querySelectorAll('link[rel=import]');\n var loaded = 0, l = imports.length;\n function checkDone(d) { \n if (loaded == l) {\n // go async to ensure parser isn't stuck on a script tag\n requestAnimationFrame(callback);\n }\n }\n function loadedImport(e) {\n loaded++;\n checkDone();\n }\n if (l) {\n for (var i=0, imp; (i<l) && (imp=imports[i]); i++) {\n if (isImportLoaded(imp)) {\n loadedImport.call(imp);\n } else {\n imp.addEventListener('load', loadedImport);\n imp.addEventListener('error', loadedImport);\n }\n }\n } else {\n checkDone();\n }\n}\n\nfunction isImportLoaded(link) {\n return useNative ? (link.import && (link.import.readyState !== 'loading')) :\n link.__importParsed;\n}\n\n// exports\nscope.hasNative = hasNative;\nscope.useNative = useNative;\nscope.importer = importer;\nscope.whenImportsReady = whenImportsReady;\nscope.IMPORT_LINK_TYPE = IMPORT_LINK_TYPE;\nscope.isImportLoaded = isImportLoaded;\nscope.importLoader = importLoader;\n\n})(window.HTMLImports);\n"," /*\nCopyright 2013 The Polymer Authors. All rights reserved.\nUse of this source code is governed by a BSD-style\nlicense that can be found in the LICENSE file.\n*/\n\n(function(scope){\n\nvar IMPORT_LINK_TYPE = scope.IMPORT_LINK_TYPE;\nvar importSelector = 'link[rel=' + IMPORT_LINK_TYPE + ']';\nvar importer = scope.importer;\n\n// we track mutations for addedNodes, looking for imports\nfunction handler(mutations) {\n for (var i=0, l=mutations.length, m; (i<l) && (m=mutations[i]); i++) {\n if (m.type === 'childList' && m.addedNodes.length) {\n addedNodes(m.addedNodes);\n }\n }\n}\n\n// find loadable elements and add them to the importer\nfunction addedNodes(nodes) {\n for (var i=0, l=nodes.length, n; (i<l) && (n=nodes[i]); i++) {\n if (shouldLoadNode(n)) {\n importer.loadNode(n);\n }\n if (n.children && n.children.length) {\n addedNodes(n.children);\n }\n }\n}\n\nfunction shouldLoadNode(node) {\n return (node.nodeType === 1) && matches.call(node,\n importer.loadSelectorsForNode(node));\n}\n\n// x-plat matches\nvar matches = HTMLElement.prototype.matches || \n HTMLElement.prototype.matchesSelector || \n HTMLElement.prototype.webkitMatchesSelector ||\n HTMLElement.prototype.mozMatchesSelector ||\n HTMLElement.prototype.msMatchesSelector;\n\nvar observer = new MutationObserver(handler);\n\n// observe the given root for loadable elements\nfunction observe(root) {\n observer.observe(root, {childList: true, subtree: true});\n}\n\n// exports\n// TODO(sorvell): factor so can put on scope\nscope.observe = observe;\nimporter.observe = observe;\n\n})(HTMLImports);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(){\n\n// bootstrap\n\n// IE shim for CustomEvent\nif (typeof window.CustomEvent !== 'function') {\n window.CustomEvent = function(inType, dictionary) {\n var e = document.createEvent('HTMLEvents');\n e.initEvent(inType,\n dictionary.bubbles === false ? false : true,\n dictionary.cancelable === false ? false : true,\n dictionary.detail);\n return e;\n };\n}\n\n// TODO(sorvell): SD polyfill intrusion\nvar doc = window.ShadowDOMPolyfill ? \n window.ShadowDOMPolyfill.wrapIfNeeded(document) : document;\n\n// Fire the 'HTMLImportsLoaded' event when imports in document at load time \n// have loaded. This event is required to simulate the script blocking \n// behavior of native imports. A main document script that needs to be sure\n// imports have loaded should wait for this event.\nHTMLImports.whenImportsReady(function() {\n HTMLImports.ready = true;\n HTMLImports.readyTime = new Date().getTime();\n doc.dispatchEvent(\n new CustomEvent('HTMLImportsLoaded', {bubbles: true})\n );\n});\n\n\n// no need to bootstrap the polyfill when native imports is available.\nif (!HTMLImports.useNative) {\n function bootstrap() {\n HTMLImports.importer.bootDocument(doc);\n }\n \n // TODO(sorvell): SD polyfill does *not* generate mutations for nodes added\n // by the parser. For this reason, we must wait until the dom exists to \n // bootstrap.\n if (document.readyState === 'complete' ||\n (document.readyState === 'interactive' && !window.attachEvent)) {\n bootstrap();\n } else {\n document.addEventListener('DOMContentLoaded', bootstrap);\n }\n}\n\n})();\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\nwindow.CustomElements = window.CustomElements || {flags:{}};"," /*\r\nCopyright 2013 The Polymer Authors. All rights reserved.\r\nUse of this source code is governed by a BSD-style\r\nlicense that can be found in the LICENSE file.\r\n*/\r\n\r\n(function(scope){\r\n\r\nvar logFlags = window.logFlags || {};\r\nvar IMPORT_LINK_TYPE = window.HTMLImports ? HTMLImports.IMPORT_LINK_TYPE : 'none';\r\n\r\n// walk the subtree rooted at node, applying 'find(element, data)' function\r\n// to each element\r\n// if 'find' returns true for 'element', do not search element's subtree\r\nfunction findAll(node, find, data) {\r\n var e = node.firstElementChild;\r\n if (!e) {\r\n e = node.firstChild;\r\n while (e && e.nodeType !== Node.ELEMENT_NODE) {\r\n e = e.nextSibling;\r\n }\r\n }\r\n while (e) {\r\n if (find(e, data) !== true) {\r\n findAll(e, find, data);\r\n }\r\n e = e.nextElementSibling;\r\n }\r\n return null;\r\n}\r\n\r\n// walk all shadowRoots on a given node.\r\nfunction forRoots(node, cb) {\r\n var root = node.shadowRoot;\r\n while(root) {\r\n forSubtree(root, cb);\r\n root = root.olderShadowRoot;\r\n }\r\n}\r\n\r\n// walk the subtree rooted at node, including descent into shadow-roots,\r\n// applying 'cb' to each element\r\nfunction forSubtree(node, cb) {\r\n //logFlags.dom && node.childNodes && node.childNodes.length && console.group('subTree: ', node);\r\n findAll(node, function(e) {\r\n if (cb(e)) {\r\n return true;\r\n }\r\n forRoots(e, cb);\r\n });\r\n forRoots(node, cb);\r\n //logFlags.dom && node.childNodes && node.childNodes.length && console.groupEnd();\r\n}\r\n\r\n// manage lifecycle on added node\r\nfunction added(node) {\r\n if (upgrade(node)) {\r\n insertedNode(node);\r\n return true;\r\n }\r\n inserted(node);\r\n}\r\n\r\n// manage lifecycle on added node's subtree only\r\nfunction addedSubtree(node) {\r\n forSubtree(node, function(e) {\r\n if (added(e)) {\r\n return true;\r\n }\r\n });\r\n}\r\n\r\n// manage lifecycle on added node and it's subtree\r\nfunction addedNode(node) {\r\n return added(node) || addedSubtree(node);\r\n}\r\n\r\n// upgrade custom elements at node, if applicable\r\nfunction upgrade(node) {\r\n if (!node.__upgraded__ && node.nodeType === Node.ELEMENT_NODE) {\r\n var type = node.getAttribute('is') || node.localName;\r\n var definition = scope.registry[type];\r\n if (definition) {\r\n logFlags.dom && console.group('upgrade:', node.localName);\r\n scope.upgrade(node);\r\n logFlags.dom && console.groupEnd();\r\n return true;\r\n }\r\n }\r\n}\r\n\r\nfunction insertedNode(node) {\r\n inserted(node);\r\n if (inDocument(node)) {\r\n forSubtree(node, function(e) {\r\n inserted(e);\r\n });\r\n }\r\n}\r\n\r\n// TODO(sorvell): on platforms without MutationObserver, mutations may not be\r\n// reliable and therefore attached/detached are not reliable.\r\n// To make these callbacks less likely to fail, we defer all inserts and removes\r\n// to give a chance for elements to be inserted into dom.\r\n// This ensures attachedCallback fires for elements that are created and\r\n// immediately added to dom.\r\nvar hasPolyfillMutations = (!window.MutationObserver ||\r\n (window.MutationObserver === window.JsMutationObserver));\r\nscope.hasPolyfillMutations = hasPolyfillMutations;\r\n\r\nvar isPendingMutations = false;\r\nvar pendingMutations = [];\r\nfunction deferMutation(fn) {\r\n pendingMutations.push(fn);\r\n if (!isPendingMutations) {\r\n isPendingMutations = true;\r\n var async = (window.Platform && window.Platform.endOfMicrotask) ||\r\n setTimeout;\r\n async(takeMutations);\r\n }\r\n}\r\n\r\nfunction takeMutations() {\r\n isPendingMutations = false;\r\n var $p = pendingMutations;\r\n for (var i=0, l=$p.length, p; (i<l) && (p=$p[i]); i++) {\r\n p();\r\n }\r\n pendingMutations = [];\r\n}\r\n\r\nfunction inserted(element) {\r\n if (hasPolyfillMutations) {\r\n deferMutation(function() {\r\n _inserted(element);\r\n });\r\n } else {\r\n _inserted(element);\r\n }\r\n}\r\n\r\n// TODO(sjmiles): if there are descents into trees that can never have inDocument(*) true, fix this\r\nfunction _inserted(element) {\r\n // TODO(sjmiles): it's possible we were inserted and removed in the space\r\n // of one microtask, in which case we won't be 'inDocument' here\r\n // But there are other cases where we are testing for inserted without\r\n // specific knowledge of mutations, and must test 'inDocument' to determine\r\n // whether to call inserted\r\n // If we can factor these cases into separate code paths we can have\r\n // better diagnostics.\r\n // TODO(sjmiles): when logging, do work on all custom elements so we can\r\n // track behavior even when callbacks not defined\r\n //console.log('inserted: ', element.localName);\r\n if (element.attachedCallback || element.detachedCallback || (element.__upgraded__ && logFlags.dom)) {\r\n logFlags.dom && console.group('inserted:', element.localName);\r\n if (inDocument(element)) {\r\n element.__inserted = (element.__inserted || 0) + 1;\r\n // if we are in a 'removed' state, bluntly adjust to an 'inserted' state\r\n if (element.__inserted < 1) {\r\n element.__inserted = 1;\r\n }\r\n // if we are 'over inserted', squelch the callback\r\n if (element.__inserted > 1) {\r\n logFlags.dom && console.warn('inserted:', element.localName,\r\n 'insert/remove count:', element.__inserted)\r\n } else if (element.attachedCallback) {\r\n logFlags.dom && console.log('inserted:', element.localName);\r\n element.attachedCallback();\r\n }\r\n }\r\n logFlags.dom && console.groupEnd();\r\n }\r\n}\r\n\r\nfunction removedNode(node) {\r\n removed(node);\r\n forSubtree(node, function(e) {\r\n removed(e);\r\n });\r\n}\r\n\r\nfunction removed(element) {\r\n if (hasPolyfillMutations) {\r\n deferMutation(function() {\r\n _removed(element);\r\n });\r\n } else {\r\n _removed(element);\r\n }\r\n}\r\n\r\nfunction _removed(element) {\r\n // TODO(sjmiles): temporary: do work on all custom elements so we can track\r\n // behavior even when callbacks not defined\r\n if (element.attachedCallback || element.detachedCallback || (element.__upgraded__ && logFlags.dom)) {\r\n logFlags.dom && console.group('removed:', element.localName);\r\n if (!inDocument(element)) {\r\n element.__inserted = (element.__inserted || 0) - 1;\r\n // if we are in a 'inserted' state, bluntly adjust to an 'removed' state\r\n if (element.__inserted > 0) {\r\n element.__inserted = 0;\r\n }\r\n // if we are 'over removed', squelch the callback\r\n if (element.__inserted < 0) {\r\n logFlags.dom && console.warn('removed:', element.localName,\r\n 'insert/remove count:', element.__inserted)\r\n } else if (element.detachedCallback) {\r\n element.detachedCallback();\r\n }\r\n }\r\n logFlags.dom && console.groupEnd();\r\n }\r\n}\r\n\r\n// SD polyfill intrustion due mainly to the fact that 'document'\r\n// is not entirely wrapped\r\nfunction wrapIfNeeded(node) {\r\n return window.ShadowDOMPolyfill ? ShadowDOMPolyfill.wrapIfNeeded(node)\r\n : node;\r\n}\r\n\r\nfunction inDocument(element) {\r\n var p = element;\r\n var doc = wrapIfNeeded(document);\r\n while (p) {\r\n if (p == doc) {\r\n return true;\r\n }\r\n p = p.parentNode || p.host;\r\n }\r\n}\r\n\r\nfunction watchShadow(node) {\r\n if (node.shadowRoot && !node.shadowRoot.__watched) {\r\n logFlags.dom && console.log('watching shadow-root for: ', node.localName);\r\n // watch all unwatched roots...\r\n var root = node.shadowRoot;\r\n while (root) {\r\n watchRoot(root);\r\n root = root.olderShadowRoot;\r\n }\r\n }\r\n}\r\n\r\nfunction watchRoot(root) {\r\n if (!root.__watched) {\r\n observe(root);\r\n root.__watched = true;\r\n }\r\n}\r\n\r\nfunction handler(mutations) {\r\n //\r\n if (logFlags.dom) {\r\n var mx = mutations[0];\r\n if (mx && mx.type === 'childList' && mx.addedNodes) {\r\n if (mx.addedNodes) {\r\n var d = mx.addedNodes[0];\r\n while (d && d !== document && !d.host) {\r\n d = d.parentNode;\r\n }\r\n var u = d && (d.URL || d._URL || (d.host && d.host.localName)) || '';\r\n u = u.split('/?').shift().split('/').pop();\r\n }\r\n }\r\n console.group('mutations (%d) [%s]', mutations.length, u || '');\r\n }\r\n //\r\n mutations.forEach(function(mx) {\r\n //logFlags.dom && console.group('mutation');\r\n if (mx.type === 'childList') {\r\n forEach(mx.addedNodes, function(n) {\r\n //logFlags.dom && console.log(n.localName);\r\n if (!n.localName) {\r\n return;\r\n }\r\n // nodes added may need lifecycle management\r\n addedNode(n);\r\n });\r\n // removed nodes may need lifecycle management\r\n forEach(mx.removedNodes, function(n) {\r\n //logFlags.dom && console.log(n.localName);\r\n if (!n.localName) {\r\n return;\r\n }\r\n removedNode(n);\r\n });\r\n }\r\n //logFlags.dom && console.groupEnd();\r\n });\r\n logFlags.dom && console.groupEnd();\r\n};\r\n\r\nvar observer = new MutationObserver(handler);\r\n\r\nfunction takeRecords() {\r\n // TODO(sjmiles): ask Raf why we have to call handler ourselves\r\n handler(observer.takeRecords());\r\n takeMutations();\r\n}\r\n\r\nvar forEach = Array.prototype.forEach.call.bind(Array.prototype.forEach);\r\n\r\nfunction observe(inRoot) {\r\n observer.observe(inRoot, {childList: true, subtree: true});\r\n}\r\n\r\nfunction observeDocument(doc) {\r\n observe(doc);\r\n}\r\n\r\nfunction upgradeDocument(doc) {\r\n logFlags.dom && console.group('upgradeDocument: ', (doc.baseURI).split('/').pop());\r\n addedNode(doc);\r\n logFlags.dom && console.groupEnd();\r\n}\r\n\r\nfunction upgradeDocumentTree(doc) {\r\n doc = wrapIfNeeded(doc);\r\n //console.log('upgradeDocumentTree: ', (doc.baseURI).split('/').pop());\r\n // upgrade contained imported documents\r\n var imports = doc.querySelectorAll('link[rel=' + IMPORT_LINK_TYPE + ']');\r\n for (var i=0, l=imports.length, n; (i<l) && (n=imports[i]); i++) {\r\n if (n.import && n.import.__parsed) {\r\n upgradeDocumentTree(n.import);\r\n }\r\n }\r\n upgradeDocument(doc);\r\n}\r\n\r\n// exports\r\nscope.IMPORT_LINK_TYPE = IMPORT_LINK_TYPE;\r\nscope.watchShadow = watchShadow;\r\nscope.upgradeDocumentTree = upgradeDocumentTree;\r\nscope.upgradeAll = addedNode;\r\nscope.upgradeSubtree = addedSubtree;\r\nscope.insertedNode = insertedNode;\r\n\r\nscope.observeDocument = observeDocument;\r\nscope.upgradeDocument = upgradeDocument;\r\n\r\nscope.takeRecords = takeRecords;\r\n\r\n})(window.CustomElements);\r\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * Implements `document.register`\n * @module CustomElements\n*/\n\n/**\n * Polyfilled extensions to the `document` object.\n * @class Document\n*/\n\n(function(scope) {\n\n// imports\n\nif (!scope) {\n scope = window.CustomElements = {flags:{}};\n}\nvar flags = scope.flags;\n\n// native document.registerElement?\n\nvar hasNative = Boolean(document.registerElement);\n// TODO(sorvell): See https://github.com/Polymer/polymer/issues/399\n// we'll address this by defaulting to CE polyfill in the presence of the SD\n// polyfill. This will avoid spamming excess attached/detached callbacks.\n// If there is a compelling need to run CE native with SD polyfill,\n// we'll need to fix this issue.\nvar useNative = !flags.register && hasNative && !window.ShadowDOMPolyfill;\n\nif (useNative) {\n\n // stub\n var nop = function() {};\n\n // exports\n scope.registry = {};\n scope.upgradeElement = nop;\n\n scope.watchShadow = nop;\n scope.upgrade = nop;\n scope.upgradeAll = nop;\n scope.upgradeSubtree = nop;\n scope.observeDocument = nop;\n scope.upgradeDocument = nop;\n scope.upgradeDocumentTree = nop;\n scope.takeRecords = nop;\n scope.reservedTagList = [];\n\n} else {\n\n /**\n * Registers a custom tag name with the document.\n *\n * When a registered element is created, a `readyCallback` method is called\n * in the scope of the element. The `readyCallback` method can be specified on\n * either `options.prototype` or `options.lifecycle` with the latter taking\n * precedence.\n *\n * @method register\n * @param {String} name The tag name to register. Must include a dash ('-'),\n * for example 'x-component'.\n * @param {Object} options\n * @param {String} [options.extends]\n * (_off spec_) Tag name of an element to extend (or blank for a new\n * element). This parameter is not part of the specification, but instead\n * is a hint for the polyfill because the extendee is difficult to infer.\n * Remember that the input prototype must chain to the extended element's\n * prototype (or HTMLElement.prototype) regardless of the value of\n * `extends`.\n * @param {Object} options.prototype The prototype to use for the new\n * element. The prototype must inherit from HTMLElement.\n * @param {Object} [options.lifecycle]\n * Callbacks that fire at important phases in the life of the custom\n * element.\n *\n * @example\n * FancyButton = document.registerElement(\"fancy-button\", {\n * extends: 'button',\n * prototype: Object.create(HTMLButtonElement.prototype, {\n * readyCallback: {\n * value: function() {\n * console.log(\"a fancy-button was created\",\n * }\n * }\n * })\n * });\n * @return {Function} Constructor for the newly registered type.\n */\n function register(name, options) {\n //console.warn('document.registerElement(\"' + name + '\", ', options, ')');\n // construct a defintion out of options\n // TODO(sjmiles): probably should clone options instead of mutating it\n var definition = options || {};\n if (!name) {\n // TODO(sjmiles): replace with more appropriate error (EricB can probably\n // offer guidance)\n throw new Error('document.registerElement: first argument `name` must not be empty');\n }\n if (name.indexOf('-') < 0) {\n // TODO(sjmiles): replace with more appropriate error (EricB can probably\n // offer guidance)\n throw new Error('document.registerElement: first argument (\\'name\\') must contain a dash (\\'-\\'). Argument provided was \\'' + String(name) + '\\'.');\n }\n // prevent registering reserved names\n if (isReservedTag(name)) {\n throw new Error('Failed to execute \\'registerElement\\' on \\'Document\\': Registration failed for type \\'' + String(name) + '\\'. The type name is invalid.');\n }\n // elements may only be registered once\n if (getRegisteredDefinition(name)) {\n throw new Error('DuplicateDefinitionError: a type with name \\'' + String(name) + '\\' is already registered');\n }\n // must have a prototype, default to an extension of HTMLElement\n // TODO(sjmiles): probably should throw if no prototype, check spec\n if (!definition.prototype) {\n // TODO(sjmiles): replace with more appropriate error (EricB can probably\n // offer guidance)\n throw new Error('Options missing required prototype property');\n }\n // record name\n definition.__name = name.toLowerCase();\n // ensure a lifecycle object so we don't have to null test it\n definition.lifecycle = definition.lifecycle || {};\n // build a list of ancestral custom elements (for native base detection)\n // TODO(sjmiles): we used to need to store this, but current code only\n // uses it in 'resolveTagName': it should probably be inlined\n definition.ancestry = ancestry(definition.extends);\n // extensions of native specializations of HTMLElement require localName\n // to remain native, and use secondary 'is' specifier for extension type\n resolveTagName(definition);\n // some platforms require modifications to the user-supplied prototype\n // chain\n resolvePrototypeChain(definition);\n // overrides to implement attributeChanged callback\n overrideAttributeApi(definition.prototype);\n // 7.1.5: Register the DEFINITION with DOCUMENT\n registerDefinition(definition.__name, definition);\n // 7.1.7. Run custom element constructor generation algorithm with PROTOTYPE\n // 7.1.8. Return the output of the previous step.\n definition.ctor = generateConstructor(definition);\n definition.ctor.prototype = definition.prototype;\n // force our .constructor to be our actual constructor\n definition.prototype.constructor = definition.ctor;\n // if initial parsing is complete\n if (scope.ready) {\n // upgrade any pre-existing nodes of this type\n scope.upgradeDocumentTree(document);\n }\n return definition.ctor;\n }\n\n function isReservedTag(name) {\n for (var i = 0; i < reservedTagList.length; i++) {\n if (name === reservedTagList[i]) {\n return true;\n }\n }\n }\n\n var reservedTagList = [\n 'annotation-xml', 'color-profile', 'font-face', 'font-face-src',\n 'font-face-uri', 'font-face-format', 'font-face-name', 'missing-glyph'\n ];\n\n function ancestry(extnds) {\n var extendee = getRegisteredDefinition(extnds);\n if (extendee) {\n return ancestry(extendee.extends).concat([extendee]);\n }\n return [];\n }\n\n function resolveTagName(definition) {\n // if we are explicitly extending something, that thing is our\n // baseTag, unless it represents a custom component\n var baseTag = definition.extends;\n // if our ancestry includes custom components, we only have a\n // baseTag if one of them does\n for (var i=0, a; (a=definition.ancestry[i]); i++) {\n baseTag = a.is && a.tag;\n }\n // our tag is our baseTag, if it exists, and otherwise just our name\n definition.tag = baseTag || definition.__name;\n if (baseTag) {\n // if there is a base tag, use secondary 'is' specifier\n definition.is = definition.__name;\n }\n }\n\n function resolvePrototypeChain(definition) {\n // if we don't support __proto__ we need to locate the native level\n // prototype for precise mixing in\n if (!Object.__proto__) {\n // default prototype\n var nativePrototype = HTMLElement.prototype;\n // work out prototype when using type-extension\n if (definition.is) {\n var inst = document.createElement(definition.tag);\n nativePrototype = Object.getPrototypeOf(inst);\n }\n // ensure __proto__ reference is installed at each point on the prototype\n // chain.\n // NOTE: On platforms without __proto__, a mixin strategy is used instead\n // of prototype swizzling. In this case, this generated __proto__ provides\n // limited support for prototype traversal.\n var proto = definition.prototype, ancestor;\n while (proto && (proto !== nativePrototype)) {\n var ancestor = Object.getPrototypeOf(proto);\n proto.__proto__ = ancestor;\n proto = ancestor;\n }\n }\n // cache this in case of mixin\n definition.native = nativePrototype;\n }\n\n // SECTION 4\n\n function instantiate(definition) {\n // 4.a.1. Create a new object that implements PROTOTYPE\n // 4.a.2. Let ELEMENT by this new object\n //\n // the custom element instantiation algorithm must also ensure that the\n // output is a valid DOM element with the proper wrapper in place.\n //\n return upgrade(domCreateElement(definition.tag), definition);\n }\n\n function upgrade(element, definition) {\n // some definitions specify an 'is' attribute\n if (definition.is) {\n element.setAttribute('is', definition.is);\n }\n // remove 'unresolved' attr, which is a standin for :unresolved.\n element.removeAttribute('unresolved');\n // make 'element' implement definition.prototype\n implement(element, definition);\n // flag as upgraded\n element.__upgraded__ = true;\n // lifecycle management\n created(element);\n // attachedCallback fires in tree order, call before recursing\n scope.insertedNode(element);\n // there should never be a shadow root on element at this point\n scope.upgradeSubtree(element);\n // OUTPUT\n return element;\n }\n\n function implement(element, definition) {\n // prototype swizzling is best\n if (Object.__proto__) {\n element.__proto__ = definition.prototype;\n } else {\n // where above we can re-acquire inPrototype via\n // getPrototypeOf(Element), we cannot do so when\n // we use mixin, so we install a magic reference\n customMixin(element, definition.prototype, definition.native);\n element.__proto__ = definition.prototype;\n }\n }\n\n function customMixin(inTarget, inSrc, inNative) {\n // TODO(sjmiles): 'used' allows us to only copy the 'youngest' version of\n // any property. This set should be precalculated. We also need to\n // consider this for supporting 'super'.\n var used = {};\n // start with inSrc\n var p = inSrc;\n // The default is HTMLElement.prototype, so we add a test to avoid mixing in\n // native prototypes\n while (p !== inNative && p !== HTMLElement.prototype) {\n var keys = Object.getOwnPropertyNames(p);\n for (var i=0, k; k=keys[i]; i++) {\n if (!used[k]) {\n Object.defineProperty(inTarget, k,\n Object.getOwnPropertyDescriptor(p, k));\n used[k] = 1;\n }\n }\n p = Object.getPrototypeOf(p);\n }\n }\n\n function created(element) {\n // invoke createdCallback\n if (element.createdCallback) {\n element.createdCallback();\n }\n }\n\n // attribute watching\n\n function overrideAttributeApi(prototype) {\n // overrides to implement callbacks\n // TODO(sjmiles): should support access via .attributes NamedNodeMap\n // TODO(sjmiles): preserves user defined overrides, if any\n if (prototype.setAttribute._polyfilled) {\n return;\n }\n var setAttribute = prototype.setAttribute;\n prototype.setAttribute = function(name, value) {\n changeAttribute.call(this, name, value, setAttribute);\n }\n var removeAttribute = prototype.removeAttribute;\n prototype.removeAttribute = function(name) {\n changeAttribute.call(this, name, null, removeAttribute);\n }\n prototype.setAttribute._polyfilled = true;\n }\n\n // https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/custom/\n // index.html#dfn-attribute-changed-callback\n function changeAttribute(name, value, operation) {\n var oldValue = this.getAttribute(name);\n operation.apply(this, arguments);\n var newValue = this.getAttribute(name);\n if (this.attributeChangedCallback\n && (newValue !== oldValue)) {\n this.attributeChangedCallback(name, oldValue, newValue);\n }\n }\n\n // element registry (maps tag names to definitions)\n\n var registry = {};\n\n function getRegisteredDefinition(name) {\n if (name) {\n return registry[name.toLowerCase()];\n }\n }\n\n function registerDefinition(name, definition) {\n registry[name] = definition;\n }\n\n function generateConstructor(definition) {\n return function() {\n return instantiate(definition);\n };\n }\n\n var HTML_NAMESPACE = 'http://www.w3.org/1999/xhtml';\n function createElementNS(namespace, tag, typeExtension) {\n // NOTE: we do not support non-HTML elements,\n // just call createElementNS for non HTML Elements\n if (namespace === HTML_NAMESPACE) {\n return createElement(tag, typeExtension);\n } else {\n return domCreateElementNS(namespace, tag);\n }\n }\n\n function createElement(tag, typeExtension) {\n // TODO(sjmiles): ignore 'tag' when using 'typeExtension', we could\n // error check it, or perhaps there should only ever be one argument\n var definition = getRegisteredDefinition(typeExtension || tag);\n if (definition) {\n if (tag == definition.tag && typeExtension == definition.is) {\n return new definition.ctor();\n }\n // Handle empty string for type extension.\n if (!typeExtension && !definition.is) {\n return new definition.ctor();\n }\n }\n\n if (typeExtension) {\n var element = createElement(tag);\n element.setAttribute('is', typeExtension);\n return element;\n }\n var element = domCreateElement(tag);\n // Custom tags should be HTMLElements even if not upgraded.\n if (tag.indexOf('-') >= 0) {\n implement(element, HTMLElement);\n }\n return element;\n }\n\n function upgradeElement(element) {\n if (!element.__upgraded__ && (element.nodeType === Node.ELEMENT_NODE)) {\n var is = element.getAttribute('is');\n var definition = getRegisteredDefinition(is || element.localName);\n if (definition) {\n if (is && definition.tag == element.localName) {\n return upgrade(element, definition);\n } else if (!is && !definition.extends) {\n return upgrade(element, definition);\n }\n }\n }\n }\n\n function cloneNode(deep) {\n // call original clone\n var n = domCloneNode.call(this, deep);\n // upgrade the element and subtree\n scope.upgradeAll(n);\n // return the clone\n return n;\n }\n // capture native createElement before we override it\n\n var domCreateElement = document.createElement.bind(document);\n var domCreateElementNS = document.createElementNS.bind(document);\n\n // capture native cloneNode before we override it\n\n var domCloneNode = Node.prototype.cloneNode;\n\n // exports\n\n document.registerElement = register;\n document.createElement = createElement; // override\n document.createElementNS = createElementNS; // override\n Node.prototype.cloneNode = cloneNode; // override\n\n scope.registry = registry;\n\n /**\n * Upgrade an element to a custom element. Upgrading an element\n * causes the custom prototype to be applied, an `is` attribute\n * to be attached (as needed), and invocation of the `readyCallback`.\n * `upgrade` does nothing if the element is already upgraded, or\n * if it matches no registered custom tag name.\n *\n * @method ugprade\n * @param {Element} element The element to upgrade.\n * @return {Element} The upgraded element.\n */\n scope.upgrade = upgradeElement;\n}\n\n// Create a custom 'instanceof'. This is necessary when CustomElements\n// are implemented via a mixin strategy, as for example on IE10.\nvar isInstance;\nif (!Object.__proto__ && !useNative) {\n isInstance = function(obj, ctor) {\n var p = obj;\n while (p) {\n // NOTE: this is not technically correct since we're not checking if\n // an object is an instance of a constructor; however, this should\n // be good enough for the mixin strategy.\n if (p === ctor.prototype) {\n return true;\n }\n p = p.__proto__;\n }\n return false;\n }\n} else {\n isInstance = function(obj, base) {\n return obj instanceof base;\n }\n}\n\n// exports\nscope.instanceof = isInstance;\nscope.reservedTagList = reservedTagList;\n\n// bc\ndocument.register = document.registerElement;\n\nscope.hasNative = hasNative;\nscope.useNative = useNative;\n\n})(window.CustomElements);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n(function(scope) {\n\n// import\n\nvar IMPORT_LINK_TYPE = scope.IMPORT_LINK_TYPE;\n\n// highlander object for parsing a document tree\n\nvar parser = {\n selectors: [\n 'link[rel=' + IMPORT_LINK_TYPE + ']'\n ],\n map: {\n link: 'parseLink'\n },\n parse: function(inDocument) {\n if (!inDocument.__parsed) {\n // only parse once\n inDocument.__parsed = true;\n // all parsable elements in inDocument (depth-first pre-order traversal)\n var elts = inDocument.querySelectorAll(parser.selectors);\n // for each parsable node type, call the mapped parsing method\n forEach(elts, function(e) {\n parser[parser.map[e.localName]](e);\n });\n // upgrade all upgradeable static elements, anything dynamically\n // created should be caught by observer\n CustomElements.upgradeDocument(inDocument);\n // observe document for dom changes\n CustomElements.observeDocument(inDocument);\n }\n },\n parseLink: function(linkElt) {\n // imports\n if (isDocumentLink(linkElt)) {\n this.parseImport(linkElt);\n }\n },\n parseImport: function(linkElt) {\n if (linkElt.import) {\n parser.parse(linkElt.import);\n }\n }\n};\n\nfunction isDocumentLink(inElt) {\n return (inElt.localName === 'link'\n && inElt.getAttribute('rel') === IMPORT_LINK_TYPE);\n}\n\nvar forEach = Array.prototype.forEach.call.bind(Array.prototype.forEach);\n\n// exports\n\nscope.parser = parser;\nscope.IMPORT_LINK_TYPE = IMPORT_LINK_TYPE;\n\n})(window.CustomElements);","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(scope){\n\n// bootstrap parsing\nfunction bootstrap() {\n // parse document\n CustomElements.parser.parse(document);\n // one more pass before register is 'live'\n CustomElements.upgradeDocument(document);\n // choose async\n var async = window.Platform && Platform.endOfMicrotask ? \n Platform.endOfMicrotask :\n setTimeout;\n async(function() {\n // set internal 'ready' flag, now document.registerElement will trigger \n // synchronous upgrades\n CustomElements.ready = true;\n // capture blunt profiling data\n CustomElements.readyTime = Date.now();\n if (window.HTMLImports) {\n CustomElements.elapsed = CustomElements.readyTime - HTMLImports.readyTime;\n }\n // notify the system that we are bootstrapped\n document.dispatchEvent(\n new CustomEvent('WebComponentsReady', {bubbles: true})\n );\n\n // install upgrade hook if HTMLImports are available\n if (window.HTMLImports) {\n HTMLImports.__importsParsingHook = function(elt) {\n CustomElements.parser.parse(elt.import);\n }\n }\n });\n}\n\n// CustomEvent shim for IE\nif (typeof window.CustomEvent !== 'function') {\n window.CustomEvent = function(inType) {\n var e = document.createEvent('HTMLEvents');\n e.initEvent(inType, true, true);\n return e;\n };\n}\n\n// When loading at readyState complete time (or via flag), boot custom elements\n// immediately.\n// If relevant, HTMLImports must already be loaded.\nif (document.readyState === 'complete' || scope.flags.eager) {\n bootstrap();\n// When loading at readyState interactive time, bootstrap only if HTMLImports\n// are not pending. Also avoid IE as the semantics of this state are unreliable.\n} else if (document.readyState === 'interactive' && !window.attachEvent &&\n (!window.HTMLImports || window.HTMLImports.ready)) {\n bootstrap();\n// When loading at other readyStates, wait for the appropriate DOM event to \n// bootstrap.\n} else {\n var loadEvent = window.HTMLImports && !HTMLImports.ready ?\n 'HTMLImportsLoaded' : 'DOMContentLoaded';\n window.addEventListener(loadEvent, bootstrap);\n}\n\n})(window.CustomElements);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function() {\n\nif (window.ShadowDOMPolyfill) {\n\n // ensure wrapped inputs for these functions\n var fns = ['upgradeAll', 'upgradeSubtree', 'observeDocument',\n 'upgradeDocument'];\n\n // cache originals\n var original = {};\n fns.forEach(function(fn) {\n original[fn] = CustomElements[fn];\n });\n\n // override\n fns.forEach(function(fn) {\n CustomElements[fn] = function(inNode) {\n return original[fn](wrap(inNode));\n };\n });\n\n}\n\n})();\n","/*\n * Copyright 2014 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(scope) {\n var endOfMicrotask = scope.endOfMicrotask;\n\n // Generic url loader\n function Loader(regex) {\n this.regex = regex;\n }\n Loader.prototype = {\n // TODO(dfreedm): there may be a better factoring here\n // extract absolute urls from the text (full of relative urls)\n extractUrls: function(text, base) {\n var matches = [];\n var matched, u;\n while ((matched = this.regex.exec(text))) {\n u = new URL(matched[1], base);\n matches.push({matched: matched[0], url: u.href});\n }\n return matches;\n },\n // take a text blob, a root url, and a callback and load all the urls found within the text\n // returns a map of absolute url to text\n process: function(text, root, callback) {\n var matches = this.extractUrls(text, root);\n this.fetch(matches, {}, callback);\n },\n // build a mapping of url -> text from matches\n fetch: function(matches, map, callback) {\n var inflight = matches.length;\n\n // return early if there is no fetching to be done\n if (!inflight) {\n return callback(map);\n }\n\n var done = function() {\n if (--inflight === 0) {\n callback(map);\n }\n };\n\n // map url -> responseText\n var handleXhr = function(err, request) {\n var match = request.match;\n var key = match.url;\n // handle errors with an empty string\n if (err) {\n map[key] = '';\n return done();\n }\n var response = request.response || request.responseText;\n map[key] = response;\n this.fetch(this.extractUrls(response, key), map, done);\n };\n\n var m, req, url;\n for (var i = 0; i < inflight; i++) {\n m = matches[i];\n url = m.url;\n // if this url has already been requested, skip requesting it again\n if (map[url]) {\n // Async call to done to simplify the inflight logic\n endOfMicrotask(done);\n continue;\n }\n req = this.xhr(url, handleXhr, this);\n req.match = m;\n // tag the map with an XHR request to deduplicate at the same level\n map[url] = req;\n }\n },\n xhr: function(url, callback, scope) {\n var request = new XMLHttpRequest();\n request.open('GET', url, true);\n request.send();\n request.onload = function() {\n callback.call(scope, null, request);\n };\n request.onerror = function() {\n callback.call(scope, null, request);\n };\n return request;\n }\n };\n\n scope.Loader = Loader;\n})(window.Platform);\n","/*\n * Copyright 2014 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(scope) {\n\nvar urlResolver = scope.urlResolver;\nvar Loader = scope.Loader;\n\nfunction StyleResolver() {\n this.loader = new Loader(this.regex);\n}\nStyleResolver.prototype = {\n regex: /@import\\s+(?:url)?[\"'\\(]*([^'\"\\)]*)['\"\\)]*;/g,\n // Recursively replace @imports with the text at that url\n resolve: function(text, url, callback) {\n var done = function(map) {\n callback(this.flatten(text, url, map));\n }.bind(this);\n this.loader.process(text, url, done);\n },\n // resolve the textContent of a style node\n resolveNode: function(style, callback) {\n var text = style.textContent;\n var url = style.ownerDocument.baseURI;\n var done = function(text) {\n style.textContent = text;\n callback(style);\n };\n this.resolve(text, url, done);\n },\n // flatten all the @imports to text\n flatten: function(text, base, map) {\n var matches = this.loader.extractUrls(text, base);\n var match, url, intermediate;\n for (var i = 0; i < matches.length; i++) {\n match = matches[i];\n url = match.url;\n // resolve any css text to be relative to the importer\n intermediate = urlResolver.resolveCssText(map[url], url);\n // flatten intermediate @imports\n intermediate = this.flatten(intermediate, base, map);\n text = text.replace(match.matched, intermediate);\n }\n return text;\n },\n loadStyles: function(styles, callback) {\n var loaded=0, l = styles.length;\n // called in the context of the style\n function loadedStyle(style) {\n loaded++;\n if (loaded === l && callback) {\n callback();\n }\n }\n for (var i=0, s; (i<l) && (s=styles[i]); i++) {\n this.resolveNode(s, loadedStyle);\n }\n }\n};\n\nvar styleResolver = new StyleResolver();\n\n// exports\nscope.styleResolver = styleResolver;\n\n})(window.Platform);\n","// Copyright (c) 2014 The Polymer Project Authors. All rights reserved.\n// This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt\n// The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt\n// The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt\n// Code distributed by Google as part of the polymer project is also\n// subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt\n\n(function(global) {\n 'use strict';\n\n var filter = Array.prototype.filter.call.bind(Array.prototype.filter);\n\n function getTreeScope(node) {\n while (node.parentNode) {\n node = node.parentNode;\n }\n\n return typeof node.getElementById === 'function' ? node : null;\n }\n\n Node.prototype.bind = function(name, observable) {\n console.error('Unhandled binding to Node: ', this, name, observable);\n };\n\n Node.prototype.bindFinished = function() {};\n\n function updateBindings(node, name, binding) {\n var bindings = node.bindings_;\n if (!bindings)\n bindings = node.bindings_ = {};\n\n if (bindings[name])\n binding[name].close();\n\n return bindings[name] = binding;\n }\n\n function returnBinding(node, name, binding) {\n return binding;\n }\n\n function sanitizeValue(value) {\n return value == null ? '' : value;\n }\n\n function updateText(node, value) {\n node.data = sanitizeValue(value);\n }\n\n function textBinding(node) {\n return function(value) {\n return updateText(node, value);\n };\n }\n\n var maybeUpdateBindings = returnBinding;\n\n Object.defineProperty(Platform, 'enableBindingsReflection', {\n get: function() {\n return maybeUpdateBindings === updateBindings;\n },\n set: function(enable) {\n maybeUpdateBindings = enable ? updateBindings : returnBinding;\n return enable;\n },\n configurable: true\n });\n\n Text.prototype.bind = function(name, value, oneTime) {\n if (name !== 'textContent')\n return Node.prototype.bind.call(this, name, value, oneTime);\n\n if (oneTime)\n return updateText(this, value);\n\n var observable = value;\n updateText(this, observable.open(textBinding(this)));\n return maybeUpdateBindings(this, name, observable);\n }\n\n function updateAttribute(el, name, conditional, value) {\n if (conditional) {\n if (value)\n el.setAttribute(name, '');\n else\n el.removeAttribute(name);\n return;\n }\n\n el.setAttribute(name, sanitizeValue(value));\n }\n\n function attributeBinding(el, name, conditional) {\n return function(value) {\n updateAttribute(el, name, conditional, value);\n };\n }\n\n Element.prototype.bind = function(name, value, oneTime) {\n var conditional = name[name.length - 1] == '?';\n if (conditional) {\n this.removeAttribute(name);\n name = name.slice(0, -1);\n }\n\n if (oneTime)\n return updateAttribute(this, name, conditional, value);\n\n\n var observable = value;\n updateAttribute(this, name, conditional,\n observable.open(attributeBinding(this, name, conditional)));\n\n return maybeUpdateBindings(this, name, observable);\n };\n\n var checkboxEventType;\n (function() {\n // Attempt to feature-detect which event (change or click) is fired first\n // for checkboxes.\n var div = document.createElement('div');\n var checkbox = div.appendChild(document.createElement('input'));\n checkbox.setAttribute('type', 'checkbox');\n var first;\n var count = 0;\n checkbox.addEventListener('click', function(e) {\n count++;\n first = first || 'click';\n });\n checkbox.addEventListener('change', function() {\n count++;\n first = first || 'change';\n });\n\n var event = document.createEvent('MouseEvent');\n event.initMouseEvent(\"click\", true, true, window, 0, 0, 0, 0, 0, false,\n false, false, false, 0, null);\n checkbox.dispatchEvent(event);\n // WebKit/Blink don't fire the change event if the element is outside the\n // document, so assume 'change' for that case.\n checkboxEventType = count == 1 ? 'change' : first;\n })();\n\n function getEventForInputType(element) {\n switch (element.type) {\n case 'checkbox':\n return checkboxEventType;\n case 'radio':\n case 'select-multiple':\n case 'select-one':\n return 'change';\n case 'range':\n if (/Trident|MSIE/.test(navigator.userAgent))\n return 'change';\n default:\n return 'input';\n }\n }\n\n function updateInput(input, property, value, santizeFn) {\n input[property] = (santizeFn || sanitizeValue)(value);\n }\n\n function inputBinding(input, property, santizeFn) {\n return function(value) {\n return updateInput(input, property, value, santizeFn);\n }\n }\n\n function noop() {}\n\n function bindInputEvent(input, property, observable, postEventFn) {\n var eventType = getEventForInputType(input);\n\n function eventHandler() {\n observable.setValue(input[property]);\n observable.discardChanges();\n (postEventFn || noop)(input);\n Platform.performMicrotaskCheckpoint();\n }\n input.addEventListener(eventType, eventHandler);\n\n return {\n close: function() {\n input.removeEventListener(eventType, eventHandler);\n observable.close();\n },\n\n observable_: observable\n }\n }\n\n function booleanSanitize(value) {\n return Boolean(value);\n }\n\n // |element| is assumed to be an HTMLInputElement with |type| == 'radio'.\n // Returns an array containing all radio buttons other than |element| that\n // have the same |name|, either in the form that |element| belongs to or,\n // if no form, in the document tree to which |element| belongs.\n //\n // This implementation is based upon the HTML spec definition of a\n // \"radio button group\":\n // http://www.whatwg.org/specs/web-apps/current-work/multipage/number-state.html#radio-button-group\n //\n function getAssociatedRadioButtons(element) {\n if (element.form) {\n return filter(element.form.elements, function(el) {\n return el != element &&\n el.tagName == 'INPUT' &&\n el.type == 'radio' &&\n el.name == element.name;\n });\n } else {\n var treeScope = getTreeScope(element);\n if (!treeScope)\n return [];\n var radios = treeScope.querySelectorAll(\n 'input[type=\"radio\"][name=\"' + element.name + '\"]');\n return filter(radios, function(el) {\n return el != element && !el.form;\n });\n }\n }\n\n function checkedPostEvent(input) {\n // Only the radio button that is getting checked gets an event. We\n // therefore find all the associated radio buttons and update their\n // check binding manually.\n if (input.tagName === 'INPUT' &&\n input.type === 'radio') {\n getAssociatedRadioButtons(input).forEach(function(radio) {\n var checkedBinding = radio.bindings_.checked;\n if (checkedBinding) {\n // Set the value directly to avoid an infinite call stack.\n checkedBinding.observable_.setValue(false);\n }\n });\n }\n }\n\n HTMLInputElement.prototype.bind = function(name, value, oneTime) {\n if (name !== 'value' && name !== 'checked')\n return HTMLElement.prototype.bind.call(this, name, value, oneTime);\n\n this.removeAttribute(name);\n var sanitizeFn = name == 'checked' ? booleanSanitize : sanitizeValue;\n var postEventFn = name == 'checked' ? checkedPostEvent : noop;\n\n if (oneTime)\n return updateInput(this, name, value, sanitizeFn);\n\n\n var observable = value;\n var binding = bindInputEvent(this, name, observable, postEventFn);\n updateInput(this, name,\n observable.open(inputBinding(this, name, sanitizeFn)),\n sanitizeFn);\n\n // Checkboxes may need to update bindings of other checkboxes.\n return updateBindings(this, name, binding);\n }\n\n HTMLTextAreaElement.prototype.bind = function(name, value, oneTime) {\n if (name !== 'value')\n return HTMLElement.prototype.bind.call(this, name, value, oneTime);\n\n this.removeAttribute('value');\n\n if (oneTime)\n return updateInput(this, 'value', value);\n\n var observable = value;\n var binding = bindInputEvent(this, 'value', observable);\n updateInput(this, 'value',\n observable.open(inputBinding(this, 'value', sanitizeValue)));\n return maybeUpdateBindings(this, name, binding);\n }\n\n function updateOption(option, value) {\n var parentNode = option.parentNode;;\n var select;\n var selectBinding;\n var oldValue;\n if (parentNode instanceof HTMLSelectElement &&\n parentNode.bindings_ &&\n parentNode.bindings_.value) {\n select = parentNode;\n selectBinding = select.bindings_.value;\n oldValue = select.value;\n }\n\n option.value = sanitizeValue(value);\n\n if (select && select.value != oldValue) {\n selectBinding.observable_.setValue(select.value);\n selectBinding.observable_.discardChanges();\n Platform.performMicrotaskCheckpoint();\n }\n }\n\n function optionBinding(option) {\n return function(value) {\n updateOption(option, value);\n }\n }\n\n HTMLOptionElement.prototype.bind = function(name, value, oneTime) {\n if (name !== 'value')\n return HTMLElement.prototype.bind.call(this, name, value, oneTime);\n\n this.removeAttribute('value');\n\n if (oneTime)\n return updateOption(this, value);\n\n var observable = value;\n var binding = bindInputEvent(this, 'value', observable);\n updateOption(this, observable.open(optionBinding(this)));\n return maybeUpdateBindings(this, name, binding);\n }\n\n HTMLSelectElement.prototype.bind = function(name, value, oneTime) {\n if (name === 'selectedindex')\n name = 'selectedIndex';\n\n if (name !== 'selectedIndex' && name !== 'value')\n return HTMLElement.prototype.bind.call(this, name, value, oneTime);\n\n this.removeAttribute(name);\n\n if (oneTime)\n return updateInput(this, name, value);\n\n var observable = value;\n var binding = bindInputEvent(this, name, observable);\n updateInput(this, name,\n observable.open(inputBinding(this, name)));\n\n // Option update events may need to access select bindings.\n return updateBindings(this, name, binding);\n }\n})(this);\n","// Copyright (c) 2014 The Polymer Project Authors. All rights reserved.\n// This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt\n// The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt\n// The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt\n// Code distributed by Google as part of the polymer project is also\n// subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt\n\n(function(global) {\n 'use strict';\n\n function assert(v) {\n if (!v)\n throw new Error('Assertion failed');\n }\n\n var forEach = Array.prototype.forEach.call.bind(Array.prototype.forEach);\n\n function getFragmentRoot(node) {\n var p;\n while (p = node.parentNode) {\n node = p;\n }\n\n return node;\n }\n\n function searchRefId(node, id) {\n if (!id)\n return;\n\n var ref;\n var selector = '#' + id;\n while (!ref) {\n node = getFragmentRoot(node);\n\n if (node.protoContent_)\n ref = node.protoContent_.querySelector(selector);\n else if (node.getElementById)\n ref = node.getElementById(id);\n\n if (ref || !node.templateCreator_)\n break\n\n node = node.templateCreator_;\n }\n\n return ref;\n }\n\n function getInstanceRoot(node) {\n while (node.parentNode) {\n node = node.parentNode;\n }\n return node.templateCreator_ ? node : null;\n }\n\n var Map;\n if (global.Map && typeof global.Map.prototype.forEach === 'function') {\n Map = global.Map;\n } else {\n Map = function() {\n this.keys = [];\n this.values = [];\n };\n\n Map.prototype = {\n set: function(key, value) {\n var index = this.keys.indexOf(key);\n if (index < 0) {\n this.keys.push(key);\n this.values.push(value);\n } else {\n this.values[index] = value;\n }\n },\n\n get: function(key) {\n var index = this.keys.indexOf(key);\n if (index < 0)\n return;\n\n return this.values[index];\n },\n\n delete: function(key, value) {\n var index = this.keys.indexOf(key);\n if (index < 0)\n return false;\n\n this.keys.splice(index, 1);\n this.values.splice(index, 1);\n return true;\n },\n\n forEach: function(f, opt_this) {\n for (var i = 0; i < this.keys.length; i++)\n f.call(opt_this || this, this.values[i], this.keys[i], this);\n }\n };\n }\n\n // JScript does not have __proto__. We wrap all object literals with\n // createObject which uses Object.create, Object.defineProperty and\n // Object.getOwnPropertyDescriptor to create a new object that does the exact\n // same thing. The main downside to this solution is that we have to extract\n // all those property descriptors for IE.\n var createObject = ('__proto__' in {}) ?\n function(obj) { return obj; } :\n function(obj) {\n var proto = obj.__proto__;\n if (!proto)\n return obj;\n var newObject = Object.create(proto);\n Object.getOwnPropertyNames(obj).forEach(function(name) {\n Object.defineProperty(newObject, name,\n Object.getOwnPropertyDescriptor(obj, name));\n });\n return newObject;\n };\n\n // IE does not support have Document.prototype.contains.\n if (typeof document.contains != 'function') {\n Document.prototype.contains = function(node) {\n if (node === this || node.parentNode === this)\n return true;\n return this.documentElement.contains(node);\n }\n }\n\n var BIND = 'bind';\n var REPEAT = 'repeat';\n var IF = 'if';\n\n var templateAttributeDirectives = {\n 'template': true,\n 'repeat': true,\n 'bind': true,\n 'ref': true\n };\n\n var semanticTemplateElements = {\n 'THEAD': true,\n 'TBODY': true,\n 'TFOOT': true,\n 'TH': true,\n 'TR': true,\n 'TD': true,\n 'COLGROUP': true,\n 'COL': true,\n 'CAPTION': true,\n 'OPTION': true,\n 'OPTGROUP': true\n };\n\n var hasTemplateElement = typeof HTMLTemplateElement !== 'undefined';\n if (hasTemplateElement) {\n // TODO(rafaelw): Remove when fix for\n // https://codereview.chromium.org/164803002/\n // makes it to Chrome release.\n (function() {\n var t = document.createElement('template');\n var d = t.content.ownerDocument;\n var html = d.appendChild(d.createElement('html'));\n var head = html.appendChild(d.createElement('head'));\n var base = d.createElement('base');\n base.href = document.baseURI;\n head.appendChild(base);\n })();\n }\n\n var allTemplatesSelectors = 'template, ' +\n Object.keys(semanticTemplateElements).map(function(tagName) {\n return tagName.toLowerCase() + '[template]';\n }).join(', ');\n\n function isSVGTemplate(el) {\n return el.tagName == 'template' &&\n el.namespaceURI == 'http://www.w3.org/2000/svg';\n }\n\n function isHTMLTemplate(el) {\n return el.tagName == 'TEMPLATE' &&\n el.namespaceURI == 'http://www.w3.org/1999/xhtml';\n }\n\n function isAttributeTemplate(el) {\n return Boolean(semanticTemplateElements[el.tagName] &&\n el.hasAttribute('template'));\n }\n\n function isTemplate(el) {\n if (el.isTemplate_ === undefined)\n el.isTemplate_ = el.tagName == 'TEMPLATE' || isAttributeTemplate(el);\n\n return el.isTemplate_;\n }\n\n // FIXME: Observe templates being added/removed from documents\n // FIXME: Expose imperative API to decorate and observe templates in\n // \"disconnected tress\" (e.g. ShadowRoot)\n document.addEventListener('DOMContentLoaded', function(e) {\n bootstrapTemplatesRecursivelyFrom(document);\n // FIXME: Is this needed? Seems like it shouldn't be.\n Platform.performMicrotaskCheckpoint();\n }, false);\n\n function forAllTemplatesFrom(node, fn) {\n var subTemplates = node.querySelectorAll(allTemplatesSelectors);\n\n if (isTemplate(node))\n fn(node)\n forEach(subTemplates, fn);\n }\n\n function bootstrapTemplatesRecursivelyFrom(node) {\n function bootstrap(template) {\n if (!HTMLTemplateElement.decorate(template))\n bootstrapTemplatesRecursivelyFrom(template.content);\n }\n\n forAllTemplatesFrom(node, bootstrap);\n }\n\n if (!hasTemplateElement) {\n /**\n * This represents a <template> element.\n * @constructor\n * @extends {HTMLElement}\n */\n global.HTMLTemplateElement = function() {\n throw TypeError('Illegal constructor');\n };\n }\n\n var hasProto = '__proto__' in {};\n\n function mixin(to, from) {\n Object.getOwnPropertyNames(from).forEach(function(name) {\n Object.defineProperty(to, name,\n Object.getOwnPropertyDescriptor(from, name));\n });\n }\n\n // http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/templates/index.html#dfn-template-contents-owner\n function getOrCreateTemplateContentsOwner(template) {\n var doc = template.ownerDocument\n if (!doc.defaultView)\n return doc;\n var d = doc.templateContentsOwner_;\n if (!d) {\n // TODO(arv): This should either be a Document or HTMLDocument depending\n // on doc.\n d = doc.implementation.createHTMLDocument('');\n while (d.lastChild) {\n d.removeChild(d.lastChild);\n }\n doc.templateContentsOwner_ = d;\n }\n return d;\n }\n\n function getTemplateStagingDocument(template) {\n if (!template.stagingDocument_) {\n var owner = template.ownerDocument;\n if (!owner.stagingDocument_) {\n owner.stagingDocument_ = owner.implementation.createHTMLDocument('');\n owner.stagingDocument_.isStagingDocument = true;\n // TODO(rafaelw): Remove when fix for\n // https://codereview.chromium.org/164803002/\n // makes it to Chrome release.\n var base = owner.stagingDocument_.createElement('base');\n base.href = document.baseURI;\n owner.stagingDocument_.head.appendChild(base);\n\n owner.stagingDocument_.stagingDocument_ = owner.stagingDocument_;\n }\n\n template.stagingDocument_ = owner.stagingDocument_;\n }\n\n return template.stagingDocument_;\n }\n\n // For non-template browsers, the parser will disallow <template> in certain\n // locations, so we allow \"attribute templates\" which combine the template\n // element with the top-level container node of the content, e.g.\n //\n // <tr template repeat=\"{{ foo }}\"\" class=\"bar\"><td>Bar</td></tr>\n //\n // becomes\n //\n // <template repeat=\"{{ foo }}\">\n // + #document-fragment\n // + <tr class=\"bar\">\n // + <td>Bar</td>\n //\n function extractTemplateFromAttributeTemplate(el) {\n var template = el.ownerDocument.createElement('template');\n el.parentNode.insertBefore(template, el);\n\n var attribs = el.attributes;\n var count = attribs.length;\n while (count-- > 0) {\n var attrib = attribs[count];\n if (templateAttributeDirectives[attrib.name]) {\n if (attrib.name !== 'template')\n template.setAttribute(attrib.name, attrib.value);\n el.removeAttribute(attrib.name);\n }\n }\n\n return template;\n }\n\n function extractTemplateFromSVGTemplate(el) {\n var template = el.ownerDocument.createElement('template');\n el.parentNode.insertBefore(template, el);\n\n var attribs = el.attributes;\n var count = attribs.length;\n while (count-- > 0) {\n var attrib = attribs[count];\n template.setAttribute(attrib.name, attrib.value);\n el.removeAttribute(attrib.name);\n }\n\n el.parentNode.removeChild(el);\n return template;\n }\n\n function liftNonNativeTemplateChildrenIntoContent(template, el, useRoot) {\n var content = template.content;\n if (useRoot) {\n content.appendChild(el);\n return;\n }\n\n var child;\n while (child = el.firstChild) {\n content.appendChild(child);\n }\n }\n\n var templateObserver;\n if (typeof MutationObserver == 'function') {\n templateObserver = new MutationObserver(function(records) {\n for (var i = 0; i < records.length; i++) {\n records[i].target.refChanged_();\n }\n });\n }\n\n /**\n * Ensures proper API and content model for template elements.\n * @param {HTMLTemplateElement} opt_instanceRef The template element which\n * |el| template element will return as the value of its ref(), and whose\n * content will be used as source when createInstance() is invoked.\n */\n HTMLTemplateElement.decorate = function(el, opt_instanceRef) {\n if (el.templateIsDecorated_)\n return false;\n\n var templateElement = el;\n templateElement.templateIsDecorated_ = true;\n\n var isNativeHTMLTemplate = isHTMLTemplate(templateElement) &&\n hasTemplateElement;\n var bootstrapContents = isNativeHTMLTemplate;\n var liftContents = !isNativeHTMLTemplate;\n var liftRoot = false;\n\n if (!isNativeHTMLTemplate) {\n if (isAttributeTemplate(templateElement)) {\n assert(!opt_instanceRef);\n templateElement = extractTemplateFromAttributeTemplate(el);\n templateElement.templateIsDecorated_ = true;\n isNativeHTMLTemplate = hasTemplateElement;\n liftRoot = true;\n } else if (isSVGTemplate(templateElement)) {\n templateElement = extractTemplateFromSVGTemplate(el);\n templateElement.templateIsDecorated_ = true;\n isNativeHTMLTemplate = hasTemplateElement;\n }\n }\n\n if (!isNativeHTMLTemplate) {\n fixTemplateElementPrototype(templateElement);\n var doc = getOrCreateTemplateContentsOwner(templateElement);\n templateElement.content_ = doc.createDocumentFragment();\n }\n\n if (opt_instanceRef) {\n // template is contained within an instance, its direct content must be\n // empty\n templateElement.instanceRef_ = opt_instanceRef;\n } else if (liftContents) {\n liftNonNativeTemplateChildrenIntoContent(templateElement,\n el,\n liftRoot);\n } else if (bootstrapContents) {\n bootstrapTemplatesRecursivelyFrom(templateElement.content);\n }\n\n return true;\n };\n\n // TODO(rafaelw): This used to decorate recursively all templates from a given\n // node. This happens by default on 'DOMContentLoaded', but may be needed\n // in subtrees not descendent from document (e.g. ShadowRoot).\n // Review whether this is the right public API.\n HTMLTemplateElement.bootstrap = bootstrapTemplatesRecursivelyFrom;\n\n var htmlElement = global.HTMLUnknownElement || HTMLElement;\n\n var contentDescriptor = {\n get: function() {\n return this.content_;\n },\n enumerable: true,\n configurable: true\n };\n\n if (!hasTemplateElement) {\n // Gecko is more picky with the prototype than WebKit. Make sure to use the\n // same prototype as created in the constructor.\n HTMLTemplateElement.prototype = Object.create(htmlElement.prototype);\n\n Object.defineProperty(HTMLTemplateElement.prototype, 'content',\n contentDescriptor);\n }\n\n function fixTemplateElementPrototype(el) {\n if (hasProto)\n el.__proto__ = HTMLTemplateElement.prototype;\n else\n mixin(el, HTMLTemplateElement.prototype);\n }\n\n function ensureSetModelScheduled(template) {\n if (!template.setModelFn_) {\n template.setModelFn_ = function() {\n template.setModelFnScheduled_ = false;\n var map = getBindings(template,\n template.delegate_ && template.delegate_.prepareBinding);\n processBindings(template, map, template.model_);\n };\n }\n\n if (!template.setModelFnScheduled_) {\n template.setModelFnScheduled_ = true;\n Observer.runEOM_(template.setModelFn_);\n }\n }\n\n mixin(HTMLTemplateElement.prototype, {\n bind: function(name, value, oneTime) {\n if (name != 'ref')\n return Element.prototype.bind.call(this, name, value, oneTime);\n\n var self = this;\n var ref = oneTime ? value : value.open(function(ref) {\n self.setAttribute('ref', ref);\n self.refChanged_();\n });\n\n this.setAttribute('ref', ref);\n this.refChanged_();\n if (oneTime)\n return;\n\n if (!this.bindings_) {\n this.bindings_ = { ref: value };\n } else {\n this.bindings_.ref = value;\n }\n\n return value;\n },\n\n processBindingDirectives_: function(directives) {\n if (this.iterator_)\n this.iterator_.closeDeps();\n\n if (!directives.if && !directives.bind && !directives.repeat) {\n if (this.iterator_) {\n this.iterator_.close();\n this.iterator_ = undefined;\n }\n\n return;\n }\n\n if (!this.iterator_) {\n this.iterator_ = new TemplateIterator(this);\n }\n\n this.iterator_.updateDependencies(directives, this.model_);\n\n if (templateObserver) {\n templateObserver.observe(this, { attributes: true,\n attributeFilter: ['ref'] });\n }\n\n return this.iterator_;\n },\n\n createInstance: function(model, bindingDelegate, delegate_) {\n if (bindingDelegate)\n delegate_ = this.newDelegate_(bindingDelegate);\n else if (!delegate_)\n delegate_ = this.delegate_;\n\n if (!this.refContent_)\n this.refContent_ = this.ref_.content;\n var content = this.refContent_;\n if (content.firstChild === null)\n return emptyInstance;\n\n var map = getInstanceBindingMap(content, delegate_);\n var stagingDocument = getTemplateStagingDocument(this);\n var instance = stagingDocument.createDocumentFragment();\n instance.templateCreator_ = this;\n instance.protoContent_ = content;\n instance.bindings_ = [];\n instance.terminator_ = null;\n var instanceRecord = instance.templateInstance_ = {\n firstNode: null,\n lastNode: null,\n model: model\n };\n\n var i = 0;\n var collectTerminator = false;\n for (var child = content.firstChild; child; child = child.nextSibling) {\n // The terminator of the instance is the clone of the last child of the\n // content. If the last child is an active template, it may produce\n // instances as a result of production, so simply collecting the last\n // child of the instance after it has finished producing may be wrong.\n if (child.nextSibling === null)\n collectTerminator = true;\n\n var clone = cloneAndBindInstance(child, instance, stagingDocument,\n map.children[i++],\n model,\n delegate_,\n instance.bindings_);\n clone.templateInstance_ = instanceRecord;\n if (collectTerminator)\n instance.terminator_ = clone;\n }\n\n instanceRecord.firstNode = instance.firstChild;\n instanceRecord.lastNode = instance.lastChild;\n instance.templateCreator_ = undefined;\n instance.protoContent_ = undefined;\n return instance;\n },\n\n get model() {\n return this.model_;\n },\n\n set model(model) {\n this.model_ = model;\n ensureSetModelScheduled(this);\n },\n\n get bindingDelegate() {\n return this.delegate_ && this.delegate_.raw;\n },\n\n refChanged_: function() {\n if (!this.iterator_ || this.refContent_ === this.ref_.content)\n return;\n\n this.refContent_ = undefined;\n this.iterator_.valueChanged();\n this.iterator_.updateIteratedValue();\n },\n\n clear: function() {\n this.model_ = undefined;\n this.delegate_ = undefined;\n if (this.bindings_ && this.bindings_.ref)\n this.bindings_.ref.close()\n this.refContent_ = undefined;\n if (!this.iterator_)\n return;\n this.iterator_.valueChanged();\n this.iterator_.close()\n this.iterator_ = undefined;\n },\n\n setDelegate_: function(delegate) {\n this.delegate_ = delegate;\n this.bindingMap_ = undefined;\n if (this.iterator_) {\n this.iterator_.instancePositionChangedFn_ = undefined;\n this.iterator_.instanceModelFn_ = undefined;\n }\n },\n\n newDelegate_: function(bindingDelegate) {\n if (!bindingDelegate)\n return;\n\n function delegateFn(name) {\n var fn = bindingDelegate && bindingDelegate[name];\n if (typeof fn != 'function')\n return;\n\n return function() {\n return fn.apply(bindingDelegate, arguments);\n };\n }\n\n return {\n bindingMaps: {},\n raw: bindingDelegate,\n prepareBinding: delegateFn('prepareBinding'),\n prepareInstanceModel: delegateFn('prepareInstanceModel'),\n prepareInstancePositionChanged:\n delegateFn('prepareInstancePositionChanged')\n };\n },\n\n // TODO(rafaelw): Assigning .bindingDelegate always succeeds. It may\n // make sense to issue a warning or even throw if the template is already\n // \"activated\", since this would be a strange thing to do.\n set bindingDelegate(bindingDelegate) {\n if (this.delegate_) {\n throw Error('Template must be cleared before a new bindingDelegate ' +\n 'can be assigned');\n }\n\n this.setDelegate_(this.newDelegate_(bindingDelegate));\n },\n\n get ref_() {\n var ref = searchRefId(this, this.getAttribute('ref'));\n if (!ref)\n ref = this.instanceRef_;\n\n if (!ref)\n return this;\n\n var nextRef = ref.ref_;\n return nextRef ? nextRef : ref;\n }\n });\n\n // Returns\n // a) undefined if there are no mustaches.\n // b) [TEXT, (ONE_TIME?, PATH, DELEGATE_FN, TEXT)+] if there is at least one mustache.\n function parseMustaches(s, name, node, prepareBindingFn) {\n if (!s || !s.length)\n return;\n\n var tokens;\n var length = s.length;\n var startIndex = 0, lastIndex = 0, endIndex = 0;\n var onlyOneTime = true;\n while (lastIndex < length) {\n var startIndex = s.indexOf('{{', lastIndex);\n var oneTimeStart = s.indexOf('[[', lastIndex);\n var oneTime = false;\n var terminator = '}}';\n\n if (oneTimeStart >= 0 &&\n (startIndex < 0 || oneTimeStart < startIndex)) {\n startIndex = oneTimeStart;\n oneTime = true;\n terminator = ']]';\n }\n\n endIndex = startIndex < 0 ? -1 : s.indexOf(terminator, startIndex + 2);\n\n if (endIndex < 0) {\n if (!tokens)\n return;\n\n tokens.push(s.slice(lastIndex)); // TEXT\n break;\n }\n\n tokens = tokens || [];\n tokens.push(s.slice(lastIndex, startIndex)); // TEXT\n var pathString = s.slice(startIndex + 2, endIndex).trim();\n tokens.push(oneTime); // ONE_TIME?\n onlyOneTime = onlyOneTime && oneTime;\n var delegateFn = prepareBindingFn &&\n prepareBindingFn(pathString, name, node);\n // Don't try to parse the expression if there's a prepareBinding function\n if (delegateFn == null) {\n tokens.push(Path.get(pathString)); // PATH\n } else {\n tokens.push(null);\n }\n tokens.push(delegateFn); // DELEGATE_FN\n lastIndex = endIndex + 2;\n }\n\n if (lastIndex === length)\n tokens.push(''); // TEXT\n\n tokens.hasOnePath = tokens.length === 5;\n tokens.isSimplePath = tokens.hasOnePath &&\n tokens[0] == '' &&\n tokens[4] == '';\n tokens.onlyOneTime = onlyOneTime;\n\n tokens.combinator = function(values) {\n var newValue = tokens[0];\n\n for (var i = 1; i < tokens.length; i += 4) {\n var value = tokens.hasOnePath ? values : values[(i - 1) / 4];\n if (value !== undefined)\n newValue += value;\n newValue += tokens[i + 3];\n }\n\n return newValue;\n }\n\n return tokens;\n };\n\n function processOneTimeBinding(name, tokens, node, model) {\n if (tokens.hasOnePath) {\n var delegateFn = tokens[3];\n var value = delegateFn ? delegateFn(model, node, true) :\n tokens[2].getValueFrom(model);\n return tokens.isSimplePath ? value : tokens.combinator(value);\n }\n\n var values = [];\n for (var i = 1; i < tokens.length; i += 4) {\n var delegateFn = tokens[i + 2];\n values[(i - 1) / 4] = delegateFn ? delegateFn(model, node) :\n tokens[i + 1].getValueFrom(model);\n }\n\n return tokens.combinator(values);\n }\n\n function processSinglePathBinding(name, tokens, node, model) {\n var delegateFn = tokens[3];\n var observer = delegateFn ? delegateFn(model, node, false) :\n new PathObserver(model, tokens[2]);\n\n return tokens.isSimplePath ? observer :\n new ObserverTransform(observer, tokens.combinator);\n }\n\n function processBinding(name, tokens, node, model) {\n if (tokens.onlyOneTime)\n return processOneTimeBinding(name, tokens, node, model);\n\n if (tokens.hasOnePath)\n return processSinglePathBinding(name, tokens, node, model);\n\n var observer = new CompoundObserver();\n\n for (var i = 1; i < tokens.length; i += 4) {\n var oneTime = tokens[i];\n var delegateFn = tokens[i + 2];\n\n if (delegateFn) {\n var value = delegateFn(model, node, oneTime);\n if (oneTime)\n observer.addPath(value)\n else\n observer.addObserver(value);\n continue;\n }\n\n var path = tokens[i + 1];\n if (oneTime)\n observer.addPath(path.getValueFrom(model))\n else\n observer.addPath(model, path);\n }\n\n return new ObserverTransform(observer, tokens.combinator);\n }\n\n function processBindings(node, bindings, model, instanceBindings) {\n for (var i = 0; i < bindings.length; i += 2) {\n var name = bindings[i]\n var tokens = bindings[i + 1];\n var value = processBinding(name, tokens, node, model);\n var binding = node.bind(name, value, tokens.onlyOneTime);\n if (binding && instanceBindings)\n instanceBindings.push(binding);\n }\n\n node.bindFinished();\n if (!bindings.isTemplate)\n return;\n\n node.model_ = model;\n var iter = node.processBindingDirectives_(bindings);\n if (instanceBindings && iter)\n instanceBindings.push(iter);\n }\n\n function parseWithDefault(el, name, prepareBindingFn) {\n var v = el.getAttribute(name);\n return parseMustaches(v == '' ? '{{}}' : v, name, el, prepareBindingFn);\n }\n\n function parseAttributeBindings(element, prepareBindingFn) {\n assert(element);\n\n var bindings = [];\n var ifFound = false;\n var bindFound = false;\n\n for (var i = 0; i < element.attributes.length; i++) {\n var attr = element.attributes[i];\n var name = attr.name;\n var value = attr.value;\n\n // Allow bindings expressed in attributes to be prefixed with underbars.\n // We do this to allow correct semantics for browsers that don't implement\n // <template> where certain attributes might trigger side-effects -- and\n // for IE which sanitizes certain attributes, disallowing mustache\n // replacements in their text.\n while (name[0] === '_') {\n name = name.substring(1);\n }\n\n if (isTemplate(element) &&\n (name === IF || name === BIND || name === REPEAT)) {\n continue;\n }\n\n var tokens = parseMustaches(value, name, element,\n prepareBindingFn);\n if (!tokens)\n continue;\n\n bindings.push(name, tokens);\n }\n\n if (isTemplate(element)) {\n bindings.isTemplate = true;\n bindings.if = parseWithDefault(element, IF, prepareBindingFn);\n bindings.bind = parseWithDefault(element, BIND, prepareBindingFn);\n bindings.repeat = parseWithDefault(element, REPEAT, prepareBindingFn);\n\n if (bindings.if && !bindings.bind && !bindings.repeat)\n bindings.bind = parseMustaches('{{}}', BIND, element, prepareBindingFn);\n }\n\n return bindings;\n }\n\n function getBindings(node, prepareBindingFn) {\n if (node.nodeType === Node.ELEMENT_NODE)\n return parseAttributeBindings(node, prepareBindingFn);\n\n if (node.nodeType === Node.TEXT_NODE) {\n var tokens = parseMustaches(node.data, 'textContent', node,\n prepareBindingFn);\n if (tokens)\n return ['textContent', tokens];\n }\n\n return [];\n }\n\n function cloneAndBindInstance(node, parent, stagingDocument, bindings, model,\n delegate,\n instanceBindings,\n instanceRecord) {\n var clone = parent.appendChild(stagingDocument.importNode(node, false));\n\n var i = 0;\n for (var child = node.firstChild; child; child = child.nextSibling) {\n cloneAndBindInstance(child, clone, stagingDocument,\n bindings.children[i++],\n model,\n delegate,\n instanceBindings);\n }\n\n if (bindings.isTemplate) {\n HTMLTemplateElement.decorate(clone, node);\n if (delegate)\n clone.setDelegate_(delegate);\n }\n\n processBindings(clone, bindings, model, instanceBindings);\n return clone;\n }\n\n function createInstanceBindingMap(node, prepareBindingFn) {\n var map = getBindings(node, prepareBindingFn);\n map.children = {};\n var index = 0;\n for (var child = node.firstChild; child; child = child.nextSibling) {\n map.children[index++] = createInstanceBindingMap(child, prepareBindingFn);\n }\n\n return map;\n }\n\n var contentUidCounter = 1;\n\n // TODO(rafaelw): Setup a MutationObserver on content which clears the id\n // so that bindingMaps regenerate when the template.content changes.\n function getContentUid(content) {\n var id = content.id_;\n if (!id)\n id = content.id_ = contentUidCounter++;\n return id;\n }\n\n // Each delegate is associated with a set of bindingMaps, one for each\n // content which may be used by a template. The intent is that each binding\n // delegate gets the opportunity to prepare the instance (via the prepare*\n // delegate calls) once across all uses.\n // TODO(rafaelw): Separate out the parse map from the binding map. In the\n // current implementation, if two delegates need a binding map for the same\n // content, the second will have to reparse.\n function getInstanceBindingMap(content, delegate_) {\n var contentId = getContentUid(content);\n if (delegate_) {\n var map = delegate_.bindingMaps[contentId];\n if (!map) {\n map = delegate_.bindingMaps[contentId] =\n createInstanceBindingMap(content, delegate_.prepareBinding) || [];\n }\n return map;\n }\n\n var map = content.bindingMap_;\n if (!map) {\n map = content.bindingMap_ =\n createInstanceBindingMap(content, undefined) || [];\n }\n return map;\n }\n\n Object.defineProperty(Node.prototype, 'templateInstance', {\n get: function() {\n var instance = this.templateInstance_;\n return instance ? instance :\n (this.parentNode ? this.parentNode.templateInstance : undefined);\n }\n });\n\n var emptyInstance = document.createDocumentFragment();\n emptyInstance.bindings_ = [];\n emptyInstance.terminator_ = null;\n\n function TemplateIterator(templateElement) {\n this.closed = false;\n this.templateElement_ = templateElement;\n this.instances = [];\n this.deps = undefined;\n this.iteratedValue = [];\n this.presentValue = undefined;\n this.arrayObserver = undefined;\n }\n\n TemplateIterator.prototype = {\n closeDeps: function() {\n var deps = this.deps;\n if (deps) {\n if (deps.ifOneTime === false)\n deps.ifValue.close();\n if (deps.oneTime === false)\n deps.value.close();\n }\n },\n\n updateDependencies: function(directives, model) {\n this.closeDeps();\n\n var deps = this.deps = {};\n var template = this.templateElement_;\n\n if (directives.if) {\n deps.hasIf = true;\n deps.ifOneTime = directives.if.onlyOneTime;\n deps.ifValue = processBinding(IF, directives.if, template, model);\n\n // oneTime if & predicate is false. nothing else to do.\n if (deps.ifOneTime && !deps.ifValue) {\n this.updateIteratedValue();\n return;\n }\n\n if (!deps.ifOneTime)\n deps.ifValue.open(this.updateIteratedValue, this);\n }\n\n if (directives.repeat) {\n deps.repeat = true;\n deps.oneTime = directives.repeat.onlyOneTime;\n deps.value = processBinding(REPEAT, directives.repeat, template, model);\n } else {\n deps.repeat = false;\n deps.oneTime = directives.bind.onlyOneTime;\n deps.value = processBinding(BIND, directives.bind, template, model);\n }\n\n if (!deps.oneTime)\n deps.value.open(this.updateIteratedValue, this);\n\n this.updateIteratedValue();\n },\n\n updateIteratedValue: function() {\n if (this.deps.hasIf) {\n var ifValue = this.deps.ifValue;\n if (!this.deps.ifOneTime)\n ifValue = ifValue.discardChanges();\n if (!ifValue) {\n this.valueChanged();\n return;\n }\n }\n\n var value = this.deps.value;\n if (!this.deps.oneTime)\n value = value.discardChanges();\n if (!this.deps.repeat)\n value = [value];\n var observe = this.deps.repeat &&\n !this.deps.oneTime &&\n Array.isArray(value);\n this.valueChanged(value, observe);\n },\n\n valueChanged: function(value, observeValue) {\n if (!Array.isArray(value))\n value = [];\n\n if (value === this.iteratedValue)\n return;\n\n this.unobserve();\n this.presentValue = value;\n if (observeValue) {\n this.arrayObserver = new ArrayObserver(this.presentValue);\n this.arrayObserver.open(this.handleSplices, this);\n }\n\n this.handleSplices(ArrayObserver.calculateSplices(this.presentValue,\n this.iteratedValue));\n },\n\n getLastInstanceNode: function(index) {\n if (index == -1)\n return this.templateElement_;\n var instance = this.instances[index];\n var terminator = instance.terminator_;\n if (!terminator)\n return this.getLastInstanceNode(index - 1);\n\n if (terminator.nodeType !== Node.ELEMENT_NODE ||\n this.templateElement_ === terminator) {\n return terminator;\n }\n\n var subtemplateIterator = terminator.iterator_;\n if (!subtemplateIterator)\n return terminator;\n\n return subtemplateIterator.getLastTemplateNode();\n },\n\n getLastTemplateNode: function() {\n return this.getLastInstanceNode(this.instances.length - 1);\n },\n\n insertInstanceAt: function(index, fragment) {\n var previousInstanceLast = this.getLastInstanceNode(index - 1);\n var parent = this.templateElement_.parentNode;\n this.instances.splice(index, 0, fragment);\n\n parent.insertBefore(fragment, previousInstanceLast.nextSibling);\n },\n\n extractInstanceAt: function(index) {\n var previousInstanceLast = this.getLastInstanceNode(index - 1);\n var lastNode = this.getLastInstanceNode(index);\n var parent = this.templateElement_.parentNode;\n var instance = this.instances.splice(index, 1)[0];\n\n while (lastNode !== previousInstanceLast) {\n var node = previousInstanceLast.nextSibling;\n if (node == lastNode)\n lastNode = previousInstanceLast;\n\n instance.appendChild(parent.removeChild(node));\n }\n\n return instance;\n },\n\n getDelegateFn: function(fn) {\n fn = fn && fn(this.templateElement_);\n return typeof fn === 'function' ? fn : null;\n },\n\n handleSplices: function(splices) {\n if (this.closed || !splices.length)\n return;\n\n var template = this.templateElement_;\n\n if (!template.parentNode) {\n this.close();\n return;\n }\n\n ArrayObserver.applySplices(this.iteratedValue, this.presentValue,\n splices);\n\n var delegate = template.delegate_;\n if (this.instanceModelFn_ === undefined) {\n this.instanceModelFn_ =\n this.getDelegateFn(delegate && delegate.prepareInstanceModel);\n }\n\n if (this.instancePositionChangedFn_ === undefined) {\n this.instancePositionChangedFn_ =\n this.getDelegateFn(delegate &&\n delegate.prepareInstancePositionChanged);\n }\n\n // Instance Removals\n var instanceCache = new Map;\n var removeDelta = 0;\n for (var i = 0; i < splices.length; i++) {\n var splice = splices[i];\n var removed = splice.removed;\n for (var j = 0; j < removed.length; j++) {\n var model = removed[j];\n var instance = this.extractInstanceAt(splice.index + removeDelta);\n if (instance !== emptyInstance) {\n instanceCache.set(model, instance);\n }\n }\n\n removeDelta -= splice.addedCount;\n }\n\n // Instance Insertions\n for (var i = 0; i < splices.length; i++) {\n var splice = splices[i];\n var addIndex = splice.index;\n for (; addIndex < splice.index + splice.addedCount; addIndex++) {\n var model = this.iteratedValue[addIndex];\n var instance = instanceCache.get(model);\n if (instance) {\n instanceCache.delete(model);\n } else {\n if (this.instanceModelFn_) {\n model = this.instanceModelFn_(model);\n }\n\n if (model === undefined) {\n instance = emptyInstance;\n } else {\n instance = template.createInstance(model, undefined, delegate);\n }\n }\n\n this.insertInstanceAt(addIndex, instance);\n }\n }\n\n instanceCache.forEach(function(instance) {\n this.closeInstanceBindings(instance);\n }, this);\n\n if (this.instancePositionChangedFn_)\n this.reportInstancesMoved(splices);\n },\n\n reportInstanceMoved: function(index) {\n var instance = this.instances[index];\n if (instance === emptyInstance)\n return;\n\n this.instancePositionChangedFn_(instance.templateInstance_, index);\n },\n\n reportInstancesMoved: function(splices) {\n var index = 0;\n var offset = 0;\n for (var i = 0; i < splices.length; i++) {\n var splice = splices[i];\n if (offset != 0) {\n while (index < splice.index) {\n this.reportInstanceMoved(index);\n index++;\n }\n } else {\n index = splice.index;\n }\n\n while (index < splice.index + splice.addedCount) {\n this.reportInstanceMoved(index);\n index++;\n }\n\n offset += splice.addedCount - splice.removed.length;\n }\n\n if (offset == 0)\n return;\n\n var length = this.instances.length;\n while (index < length) {\n this.reportInstanceMoved(index);\n index++;\n }\n },\n\n closeInstanceBindings: function(instance) {\n var bindings = instance.bindings_;\n for (var i = 0; i < bindings.length; i++) {\n bindings[i].close();\n }\n },\n\n unobserve: function() {\n if (!this.arrayObserver)\n return;\n\n this.arrayObserver.close();\n this.arrayObserver = undefined;\n },\n\n close: function() {\n if (this.closed)\n return;\n this.unobserve();\n for (var i = 0; i < this.instances.length; i++) {\n this.closeInstanceBindings(this.instances[i]);\n }\n\n this.instances.length = 0;\n this.closeDeps();\n this.templateElement_.iterator_ = undefined;\n this.closed = true;\n }\n };\n\n // Polyfill-specific API.\n HTMLTemplateElement.forAllTemplatesFrom_ = forAllTemplatesFrom;\n})(this);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(scope) {\n\n// inject style sheet\nvar style = document.createElement('style');\nstyle.textContent = 'template {display: none !important;} /* injected by platform.js */';\nvar head = document.querySelector('head');\nhead.insertBefore(style, head.firstChild);\n\n// flush (with logging)\nvar flushing;\nfunction flush() {\n if (!flushing) {\n flushing = true;\n scope.endOfMicrotask(function() {\n flushing = false;\n logFlags.data && console.group('Platform.flush()');\n scope.performMicrotaskCheckpoint();\n logFlags.data && console.groupEnd();\n });\n }\n};\n\n// polling dirty checker\n// flush periodically if platform does not have object observe.\nif (!Observer.hasObjectObserve) {\n var FLUSH_POLL_INTERVAL = 125;\n window.addEventListener('WebComponentsReady', function() {\n flush();\n scope.flushPoll = setInterval(flush, FLUSH_POLL_INTERVAL);\n });\n} else {\n // make flush a no-op when we have Object.observe\n flush = function() {};\n}\n\nif (window.CustomElements && !CustomElements.useNative) {\n var originalImportNode = Document.prototype.importNode;\n Document.prototype.importNode = function(node, deep) {\n var imported = originalImportNode.call(this, node, deep);\n CustomElements.upgradeAll(imported);\n return imported;\n }\n}\n\n// exports\nscope.flush = flush;\n\n})(window.Platform);\n\n"]}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/libs/vendor/polymer/polymer/README.md b/examples/pipetobrowser/browser/libs/vendor/polymer/polymer/README.md
deleted file mode 100644
index 236a88c..0000000
--- a/examples/pipetobrowser/browser/libs/vendor/polymer/polymer/README.md
+++ /dev/null
@@ -1,17 +0,0 @@
-# Polymer
-
-[](https://github.com/igrigorik/ga-beacon)
-
-Build Status: [http://build.chromium.org/p/client.polymer/waterfall](http://build.chromium.org/p/client.polymer/waterfall)
-
-## Brief Overview
-
-For more detailed info goto [http://polymer-project.org/](http://polymer-project.org/).
-
-Polymer is a new type of library for the web, designed to leverage the existing browser infrastructure to provide the encapsulation and extendability currently only available in JS libraries.
-
-Polymer is based on a set of future technologies, including [Shadow DOM](https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html), [Custom Elements](https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/custom/index.html) and Model Driven Views. Currently these technologies are implemented as polyfills or shims, but as browsers adopt these features natively, the platform code that drives Polymer evacipates, leaving only the value-adds.
-
-## Tools & Testing
-
-For running tests or building minified files, consult the [tooling information](http://www.polymer-project.org/resources/tooling-strategy.html).
diff --git a/examples/pipetobrowser/browser/libs/vendor/polymer/polymer/bower.json b/examples/pipetobrowser/browser/libs/vendor/polymer/polymer/bower.json
deleted file mode 100644
index 2228aaf..0000000
--- a/examples/pipetobrowser/browser/libs/vendor/polymer/polymer/bower.json
+++ /dev/null
@@ -1,9 +0,0 @@
-{
- "name": "polymer",
- "private": true,
- "dependencies": {
- "platform": "Polymer/platform#0.2.3",
- "core-component-page": "Polymer/core-component-page#0.2.3"
- },
- "version": "0.2.3"
-}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/libs/vendor/polymer/polymer/build.log b/examples/pipetobrowser/browser/libs/vendor/polymer/polymer/build.log
deleted file mode 100644
index b3dff20..0000000
--- a/examples/pipetobrowser/browser/libs/vendor/polymer/polymer/build.log
+++ /dev/null
@@ -1,33 +0,0 @@
-BUILD LOG
----------
-Build Time: 2014-04-18T13:26:52
-
-NODEJS INFORMATION
-==================
-nodejs: v0.10.26
-chai: 1.9.1
-grunt: 0.4.4
-grunt-audit: 0.0.3
-grunt-contrib-uglify: 0.4.0
-grunt-contrib-yuidoc: 0.5.2
-grunt-karma: 0.8.2
-karma: 0.12.2
-karma-chrome-launcher: 0.0.2
-karma-crbot-reporter: 0.0.4
-karma-firefox-launcher: 0.1.3
-karma-ie-launcher: 0.1.3
-karma-mocha: 0.1.3
-karma-safari-launcher: 0.1.1
-karma-script-launcher: 0.1.0
-mocha: 1.18.2
-Polymer: 0.2.3
-
-REPO REVISIONS
-==============
-polymer-expressions: 3bd624bbdc1de09085524529e7f259d3cac084ae
-polymer-gestures: f16090bbb8e3d08d912f33f4a1e554e56e7ba55a
-polymer-dev: 24c48ff7ae443e69dd2ee60b0f23d55753ae96cd
-
-BUILD HASHES
-============
-build/polymer.js: ef8cd13c151e94688aa961e695b6c1ea473475d5
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/libs/vendor/polymer/polymer/polymer-body.html b/examples/pipetobrowser/browser/libs/vendor/polymer/polymer/polymer-body.html
deleted file mode 100644
index a9a7525..0000000
--- a/examples/pipetobrowser/browser/libs/vendor/polymer/polymer/polymer-body.html
+++ /dev/null
@@ -1,40 +0,0 @@
-<!--
-Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
-This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
-The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
-The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
-Code distributed by Google as part of the polymer project is also
-subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
--->
-
-<polymer-element name="polymer-body" extends="body">
-<script>
-
- // upgrade polymer-body last so that it can contain other imported elements
- document.addEventListener('polymer-ready', function() {
-
- Polymer('polymer-body', Platform.mixin({
-
- created: function() {
- this.template = document.createElement('template');
- var body = wrap(document).body;
- var c$ = body.childNodes.array();
- for (var i=0, c; (c=c$[i]); i++) {
- if (c.localName !== 'script') {
- this.template.content.appendChild(c);
- }
- }
- // snarf up user defined model
- window.model = this;
- },
-
- parseDeclaration: function(elementElement) {
- this.lightFromTemplate(this.template);
- }
-
- }, window.model));
-
- });
-
-</script>
-</polymer-element>
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/libs/vendor/polymer/polymer/polymer.html b/examples/pipetobrowser/browser/libs/vendor/polymer/polymer/polymer.html
deleted file mode 100644
index e9cb9c3..0000000
--- a/examples/pipetobrowser/browser/libs/vendor/polymer/polymer/polymer.html
+++ /dev/null
@@ -1,13 +0,0 @@
-<!--
-Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
-This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
-The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
-The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
-Code distributed by Google as part of the polymer project is also
-subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
--->
-
-<script src="polymer.js"></script>
-<!--<link rel="import" href="../polymer-dev/polymer.html">-->
-
-<link rel="import" href="polymer-body.html">
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/libs/vendor/polymer/polymer/polymer.js b/examples/pipetobrowser/browser/libs/vendor/polymer/polymer/polymer.js
deleted file mode 100644
index a279e88..0000000
--- a/examples/pipetobrowser/browser/libs/vendor/polymer/polymer/polymer.js
+++ /dev/null
@@ -1,13 +0,0 @@
-/**
- * @license
- * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
- * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
- * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
- * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
- * Code distributed by Google as part of the polymer project is also
- * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
- */
-// @version: 0.2.3
-window.PolymerGestures={},function(a){var b={shadow:function(a){return a?a.shadowRoot||a.webkitShadowRoot:void 0},canTarget:function(a){return a&&Boolean(a.elementFromPoint)},targetingShadow:function(a){var b=this.shadow(a);return this.canTarget(b)?b:void 0},olderShadow:function(a){var b=a.olderShadowRoot;if(!b){var c=a.querySelector("shadow");c&&(b=c.olderShadowRoot)}return b},allShadows:function(a){for(var b=[],c=this.shadow(a);c;)b.push(c),c=this.olderShadow(c);return b},searchRoot:function(a,b,c){if(a){var d,e,f=a.elementFromPoint(b,c);for(e=this.targetingShadow(f);e;){if(d=e.elementFromPoint(b,c)){var g=this.targetingShadow(d);return this.searchRoot(g,b,c)||d}e=this.olderShadow(e)}return f}},owner:function(a){if(!a)return document;for(var b=a;b.parentNode;)b=b.parentNode;return b.nodeType!=Node.DOCUMENT_NODE&&b.nodeType!=Node.DOCUMENT_FRAGMENT_NODE&&(b=document),b},findTarget:function(a){var b=a.clientX,c=a.clientY,d=this.owner(a.target);return d.elementFromPoint(b,c)||(d=document),this.searchRoot(d,b,c)},LCA:function(a,b){if(a===b)return a;if(a.contains){if(a.contains(b))return a;if(b.contains(a))return b}var c=this.depth(a),d=this.depth(b),e=c-d;for(e>0?a=this.walk(a,e):b=this.walk(b,-e);a&&b&&a!==b;)a=this.walk(a,1),b=this.walk(b,1);return a},walk:function(a,b){for(var c=0;a&&b>c;c++)a=a.parentNode||a.host;return a},depth:function(a){for(var b=0;a;)b++,a=a.parentNode||a.host;return b},deepContains:function(a,b){var c=this.LCA(a,b);return c===a},insideNode:function(a,b,c){var d=a.getBoundingClientRect();return d.left<=b&&b<=d.right&&d.top<=c&&c<=d.bottom}};a.targetFinding=b,a.findTarget=b.findTarget.bind(b),a.deepContains=b.deepContains.bind(b),a.insideNode=b.insideNode}(window.PolymerGestures),function(){function a(a){return"body /deep/ "+b(a)}function b(a){return'[touch-action="'+a+'"]'}function c(a){return"{ -ms-touch-action: "+a+"; touch-action: "+a+";}"}var d=["none","auto","pan-x","pan-y",{rule:"pan-x pan-y",selectors:["pan-x pan-y","pan-y pan-x"]}],e="",f=(document.head,"string"==typeof document.head.style.touchAction),g=!window.ShadowDOMPolyfill&&document.head.createShadowRoot;if(f){d.forEach(function(d){String(d)===d?(e+=b(d)+c(d)+"\n",g&&(e+=a(d)+c(d)+"\n")):(e+=d.selectors.map(b)+c(d.rule)+"\n",g&&(e+=d.selectors.map(a)+c(d.rule)+"\n"))});var h=document.createElement("style");h.textContent=e,document.head.appendChild(h)}}(),function(a){var b=["bubbles","cancelable","view","detail","screenX","screenY","clientX","clientY","ctrlKey","altKey","shiftKey","metaKey","button","relatedTarget","pageX","pageY"],c=[!1,!1,null,null,0,0,0,0,!1,!1,!1,!1,0,null,0,0],d=function(){return function(){}},e={preventTap:d,makeBaseEvent:function(a,b){var c=document.createEvent("Event");return c.initEvent(a,b.bubbles||!1,b.cancelable||!1),c.preventTap=e.preventTap(c),c},makeGestureEvent:function(a,b){b=b||Object.create(null);for(var c,d=this.makeBaseEvent(a,b),e=0,f=Object.keys(b);e<f.length;e++)c=f[e],d[c]=b[c];return d},makePointerEvent:function(a,d){d=d||Object.create(null);for(var e,f=this.makeBaseEvent(a,d),g=0;g<b.length;g++)e=b[g],f[e]=d[e]||c[g];f.buttons=d.buttons||0;var h=0;return h=d.pressure?d.pressure:f.buttons?.5:0,f.x=f.clientX,f.y=f.clientY,f.pointerId=d.pointerId||0,f.width=d.width||0,f.height=d.height||0,f.pressure=h,f.tiltX=d.tiltX||0,f.tiltY=d.tiltY||0,f.pointerType=d.pointerType||"",f.hwTimestamp=d.hwTimestamp||0,f.isPrimary=d.isPrimary||!1,f}};a.eventFactory=e}(window.PolymerGestures),function(a){function b(){if(c){var a=new Map;return a.pointers=d,a}this.keys=[],this.values=[]}var c=window.Map&&window.Map.prototype.forEach,d=function(){return this.size};b.prototype={set:function(a,b){var c=this.keys.indexOf(a);c>-1?this.values[c]=b:(this.keys.push(a),this.values.push(b))},has:function(a){return this.keys.indexOf(a)>-1},"delete":function(a){var b=this.keys.indexOf(a);b>-1&&(this.keys.splice(b,1),this.values.splice(b,1))},get:function(a){var b=this.keys.indexOf(a);return this.values[b]},clear:function(){this.keys.length=0,this.values.length=0},forEach:function(a,b){this.values.forEach(function(c,d){a.call(b,c,this.keys[d],this)},this)},pointers:function(){return this.keys.length}},a.PointerMap=b}(window.PolymerGestures),function(a){var b=["bubbles","cancelable","view","detail","screenX","screenY","clientX","clientY","ctrlKey","altKey","shiftKey","metaKey","button","relatedTarget","buttons","pointerId","width","height","pressure","tiltX","tiltY","pointerType","hwTimestamp","isPrimary","type","target","currentTarget","which","pageX","pageY","timeStamp","preventTap","tapPrevented"],c=[!1,!1,null,null,0,0,0,0,!1,!1,!1,!1,0,null,0,0,0,0,0,0,0,"",0,!1,"",null,null,0,0,0,0,function(){},!1],d="undefined"!=typeof SVGElementInstance,e=a.eventFactory,f={pointermap:new a.PointerMap,eventMap:Object.create(null),eventSources:Object.create(null),eventSourceList:[],gestures:[],gestureQueue:[],registerSource:function(a,b){var c=b,d=c.events;d&&(d.forEach(function(a){c[a]&&(this.eventMap[a]=c[a].bind(c))},this),this.eventSources[a]=c,this.eventSourceList.push(c))},registerGesture:function(a,b){this.gestures.push(b)},register:function(a){for(var b,c=this.eventSourceList.length,d=0;c>d&&(b=this.eventSourceList[d]);d++)b.register.call(b,a)},unregister:function(a){for(var b,c=this.eventSourceList.length,d=0;c>d&&(b=this.eventSourceList[d]);d++)b.unregister.call(b,a)},down:function(a){this.fireEvent("down",a)},move:function(a){a.type="move",this.fillGestureQueue(a)},up:function(a){this.fireEvent("up",a)},eventHandler:function(a){if(!a._handledByPG){var b=a.type,c=this.eventMap&&this.eventMap[b];c&&c(a),a._handledByPG=!0}},listen:function(a,b){b.forEach(function(b){this.addEvent(a,b)},this)},unlisten:function(a,b){b.forEach(function(b){this.removeEvent(a,b)},this)},addEvent:function(a,b){a.addEventListener(b,this.boundHandler)},removeEvent:function(a,b){a.removeEventListener(b,this.boundHandler)},makeEvent:function(a,b){var c=e.makePointerEvent(a,b);return c.preventDefault=b.preventDefault,c._target=c._target||b.target,c},fireEvent:function(a,b){var c=this.makeEvent(a,b);return this.dispatchEvent(c)},cloneEvent:function(a){for(var e,f=Object.create(null),g=0;g<b.length;g++)e=b[g],f[e]=a[e]||c[g],!d||"target"!==e&&"relatedTarget"!==e||f[e]instanceof SVGElementInstance&&(f[e]=f[e].correspondingUseElement);return f.preventDefault=a.preventDefault,f},dispatchEvent:function(a){var b=a._target;if(b){b.dispatchEvent(a);var c=this.cloneEvent(a);c.target=a._target,this.fillGestureQueue(c)}},gestureTrigger:function(){for(var a,b=0;b<this.gestureQueue.length;b++){a=this.gestureQueue[b];for(var c,d=0;d<this.gestures.length;d++)c=this.gestures[d],c.events.indexOf(a.type)>=0&&c[a.type].call(c,a)}this.gestureQueue.length=0},fillGestureQueue:function(a){this.gestureQueue.length||requestAnimationFrame(this.boundGestureTrigger),this.gestureQueue.push(a)}};f.boundHandler=f.eventHandler.bind(f),f.boundGestureTrigger=f.gestureTrigger.bind(f),a.dispatcher=f,a.register=f.register.bind(f),a.unregister=f.unregister.bind(f)}(window.PolymerGestures),function(a){function b(a,b,c,d){this.addCallback=a.bind(d),this.removeCallback=b.bind(d),this.changedCallback=c.bind(d),g&&(this.observer=new g(this.mutationWatcher.bind(this)))}var c=Array.prototype.forEach.call.bind(Array.prototype.forEach),d=Array.prototype.map.call.bind(Array.prototype.map),e=Array.prototype.slice.call.bind(Array.prototype.slice),f=Array.prototype.filter.call.bind(Array.prototype.filter),g=window.MutationObserver||window.WebKitMutationObserver,h="[touch-action]",i={subtree:!0,childList:!0,attributes:!0,attributeOldValue:!0,attributeFilter:["touch-action"]};b.prototype={watchSubtree:function(b){a.targetFinding.canTarget(b)&&this.observer.observe(b,i)},enableOnSubtree:function(a){this.watchSubtree(a),a===document&&"complete"!==document.readyState?this.installOnLoad():this.installNewSubtree(a)},installNewSubtree:function(a){c(this.findElements(a),this.addElement,this)},findElements:function(a){return a.querySelectorAll?a.querySelectorAll(h):[]},removeElement:function(a){this.removeCallback(a)},addElement:function(a){this.addCallback(a)},elementChanged:function(a,b){this.changedCallback(a,b)},concatLists:function(a,b){return a.concat(e(b))},installOnLoad:function(){document.addEventListener("readystatechange",function(){"complete"===document.readyState&&this.installNewSubtree(document)}.bind(this))},isElement:function(a){return a.nodeType===Node.ELEMENT_NODE},flattenMutationTree:function(a){var b=d(a,this.findElements,this);return b.push(f(a,this.isElement)),b.reduce(this.concatLists,[])},mutationWatcher:function(a){a.forEach(this.mutationHandler,this)},mutationHandler:function(a){if("childList"===a.type){var b=this.flattenMutationTree(a.addedNodes);b.forEach(this.addElement,this);var c=this.flattenMutationTree(a.removedNodes);c.forEach(this.removeElement,this)}else"attributes"===a.type&&this.elementChanged(a.target,a.oldValue)}},g||(b.prototype.watchSubtree=function(){console.warn("PolymerGestures: MutationObservers not found, touch-action will not be dynamically detected")}),a.Installer=b}(window.PolymerGestures),function(a){var b=a.dispatcher,c=b.pointermap,d=25,e=[0,1,4,2],f=!1;try{f=1===new 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b=e.get(a.pointerId);b&&c.move(a)},touchend:function(a){this.dedupSynthMouse(a),this.processTouches(a,this.up)},up:function(b){this.scrolling||(b.relatedTarget=a.findTarget(b),c.up(b)),this.cleanUpPointer(b)},touchcancel:function(a){this.processTouches(a,this.up)},cleanUpPointer:function(a){e["delete"](a.pointerId),this.removePrimaryPointer(a)},dedupSynthMouse:function(b){var c=a.mouseEvents.lastTouches,d=b.changedTouches[0];if(this.isPrimaryTouch(d)){var e={x:d.clientX,y:d.clientY};c.push(e);var g=function(a,b){var c=a.indexOf(b);c>-1&&a.splice(c,1)}.bind(null,c,e);setTimeout(g,f)}}};i||(b=new a.Installer(j.elementAdded,j.elementRemoved,j.elementChanged,j)),a.touchEvents=j}(window.PolymerGestures),function(a){var b=a.dispatcher,c=b.pointermap,d=window.MSPointerEvent&&"number"==typeof 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* @license\n * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.\n * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt\n * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt\n * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt\n * Code distributed by Google as part of the polymer project is also\n * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt\n */\nwindow.PolymerGestures = {};\n","/*\n * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.\n * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt\n * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt\n * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt\n * Code distributed by Google as part of the polymer project is also\n * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt\n */\n\n(function(scope) {\n var target = {\n shadow: function(inEl) {\n if (inEl) {\n return inEl.shadowRoot || inEl.webkitShadowRoot;\n }\n },\n canTarget: function(shadow) {\n return shadow && Boolean(shadow.elementFromPoint);\n },\n targetingShadow: function(inEl) {\n var s = this.shadow(inEl);\n if (this.canTarget(s)) {\n return s;\n }\n },\n olderShadow: function(shadow) {\n var os = shadow.olderShadowRoot;\n if (!os) {\n var se = shadow.querySelector('shadow');\n if (se) {\n os = se.olderShadowRoot;\n }\n }\n return os;\n },\n allShadows: function(element) {\n var shadows = [], s = this.shadow(element);\n while(s) {\n shadows.push(s);\n s = this.olderShadow(s);\n }\n return shadows;\n },\n searchRoot: function(inRoot, x, y) {\n if (inRoot) {\n var t = inRoot.elementFromPoint(x, y);\n var st, sr, os;\n // is element a shadow host?\n sr = this.targetingShadow(t);\n while (sr) {\n // find the the element inside the shadow root\n st = sr.elementFromPoint(x, y);\n if (!st) {\n // check for older shadows\n sr = this.olderShadow(sr);\n } else {\n // shadowed element may contain a shadow root\n var ssr = this.targetingShadow(st);\n return this.searchRoot(ssr, x, y) || st;\n }\n }\n // light dom element is the target\n return t;\n }\n },\n owner: function(element) {\n if (!element) {\n return document;\n }\n var s = element;\n // walk up until you hit the shadow root or document\n while (s.parentNode) {\n s = s.parentNode;\n }\n // the owner element is expected to be a Document or ShadowRoot\n if (s.nodeType != Node.DOCUMENT_NODE && s.nodeType != Node.DOCUMENT_FRAGMENT_NODE) {\n s = document;\n }\n return s;\n },\n findTarget: function(inEvent) {\n var x = inEvent.clientX, y = inEvent.clientY;\n // if the listener is in the shadow root, it is much faster to start there\n var s = this.owner(inEvent.target);\n // if x, y is not in this root, fall back to document search\n if (!s.elementFromPoint(x, y)) {\n s = document;\n }\n return this.searchRoot(s, x, y);\n },\n LCA: function(a, b) {\n if (a === b) {\n return a;\n }\n // fast case, a is a direct descendant of b or vice versa\n if (a.contains) {\n if (a.contains(b)) {\n return a;\n }\n if (b.contains(a)) {\n return b;\n }\n }\n var adepth = this.depth(a);\n var bdepth = this.depth(b);\n var d = adepth - bdepth;\n if (d > 0) {\n a = this.walk(a, d);\n } else {\n b = this.walk(b, -d);\n }\n while(a && b && a !== b) {\n a = this.walk(a, 1);\n b = this.walk(b, 1);\n }\n return a;\n },\n walk: function(n, u) {\n for (var i = 0; n && (i < u); i++) {\n n = n.parentNode || n.host;\n }\n return n;\n },\n depth: function(n) {\n var d = 0;\n while(n) {\n d++;\n n = n.parentNode || n.host;\n }\n return d;\n },\n deepContains: function(a, b) {\n var common = this.LCA(a, b);\n // if a is the common ancestor, it must \"deeply\" contain b\n return common === a;\n },\n insideNode: function(node, x, y) {\n var rect = node.getBoundingClientRect();\n return (rect.left <= x) && (x <= rect.right) && (rect.top <= y) && (y <= rect.bottom);\n }\n };\n scope.targetFinding = target;\n /**\n * Given an event, finds the \"deepest\" node that could have been the original target before ShadowDOM retargetting\n *\n * @param {Event} Event An event object with clientX and clientY properties\n * @return {Element} The probable event origninator\n */\n scope.findTarget = target.findTarget.bind(target);\n /**\n * Determines if the \"container\" node deeply contains the \"containee\" node, including situations where the \"containee\" is contained by one or more ShadowDOM\n * roots.\n *\n * @param {Node} container\n * @param {Node} containee\n * @return {Boolean}\n */\n scope.deepContains = target.deepContains.bind(target);\n\n /**\n * Determines if the x/y position is inside the given node.\n *\n * Example:\n *\n * function upHandler(event) {\n * var innode = PolymerGestures.insideNode(event.target, event.clientX, event.clientY);\n * if (innode) {\n * // wait for tap?\n * } else {\n * // tap will never happen\n * }\n * }\n *\n * @param {Node} node\n * @param {Number} x Screen X position\n * @param {Number} y screen Y position\n * @return {Boolean}\n */\n scope.insideNode = target.insideNode;\n\n})(window.PolymerGestures);\n","/*\n *\n * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.\n * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt\n * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt\n * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt\n * Code distributed by Google as part of the polymer project is also\n * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt\n */\n\n(function() {\n function shadowSelector(v) {\n return 'body /deep/ ' + selector(v);\n }\n function selector(v) {\n return '[touch-action=\"' + v + '\"]';\n }\n function rule(v) {\n return '{ -ms-touch-action: ' + v + '; touch-action: ' + v + ';}';\n }\n var attrib2css = [\n 'none',\n 'auto',\n 'pan-x',\n 'pan-y',\n {\n rule: 'pan-x pan-y',\n selectors: [\n 'pan-x pan-y',\n 'pan-y pan-x'\n ]\n }\n ];\n var styles = '';\n // only install stylesheet if the browser has touch action support\n var head = document.head;\n var hasTouchAction = typeof document.head.style.touchAction === 'string';\n // only add shadow selectors if shadowdom is supported\n var hasShadowRoot = !window.ShadowDOMPolyfill && document.head.createShadowRoot;\n\n if (hasTouchAction) {\n attrib2css.forEach(function(r) {\n if (String(r) === r) {\n styles += selector(r) + rule(r) + '\\n';\n if (hasShadowRoot) {\n styles += shadowSelector(r) + rule(r) + '\\n';\n }\n } else {\n styles += r.selectors.map(selector) + rule(r.rule) + '\\n';\n if (hasShadowRoot) {\n styles += r.selectors.map(shadowSelector) + rule(r.rule) + '\\n';\n }\n }\n });\n\n var el = document.createElement('style');\n el.textContent = styles;\n document.head.appendChild(el);\n }\n})();\n","/*\n * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.\n * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt\n * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt\n * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt\n * Code distributed by Google as part of the polymer project is also\n * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt\n */\n\n/**\n * This is the constructor for new PointerEvents.\n *\n * New Pointer Events must be given a type, and an optional dictionary of\n * initialization properties.\n *\n * Due to certain platform requirements, events returned from the constructor\n * identify as MouseEvents.\n *\n * @constructor\n * @param {String} inType The type of the event to create.\n * @param {Object} [inDict] An optional dictionary of initial event properties.\n * @return {Event} A new PointerEvent of type `inType` and initialized with properties from `inDict`.\n */\n(function(scope) {\n\n var MOUSE_PROPS = [\n 'bubbles',\n 'cancelable',\n 'view',\n 'detail',\n 'screenX',\n 'screenY',\n 'clientX',\n 'clientY',\n 'ctrlKey',\n 'altKey',\n 'shiftKey',\n 'metaKey',\n 'button',\n 'relatedTarget',\n 'pageX',\n 'pageY'\n ];\n\n var MOUSE_DEFAULTS = [\n false,\n false,\n null,\n null,\n 0,\n 0,\n 0,\n 0,\n false,\n false,\n false,\n false,\n 0,\n null,\n 0,\n 0\n ];\n\n var NOP_FACTORY = function(){ return function(){}; };\n\n var eventFactory = {\n // TODO(dfreedm): this is overridden by tap recognizer, needs review\n preventTap: NOP_FACTORY,\n makeBaseEvent: function(inType, inDict) {\n var e = document.createEvent('Event');\n e.initEvent(inType, inDict.bubbles || false, inDict.cancelable || false);\n e.preventTap = eventFactory.preventTap(e);\n return e;\n },\n makeGestureEvent: function(inType, inDict) {\n inDict = inDict || Object.create(null);\n\n var e = this.makeBaseEvent(inType, inDict);\n for (var i = 0, keys = Object.keys(inDict), k; i < keys.length; i++) {\n k = keys[i];\n e[k] = inDict[k];\n }\n return e;\n },\n makePointerEvent: function(inType, inDict) {\n inDict = inDict || Object.create(null);\n\n var e = this.makeBaseEvent(inType, inDict);\n // define inherited MouseEvent properties\n for(var i = 0, p; i < MOUSE_PROPS.length; i++) {\n p = MOUSE_PROPS[i];\n e[p] = inDict[p] || MOUSE_DEFAULTS[i];\n }\n e.buttons = inDict.buttons || 0;\n\n // Spec requires that pointers without pressure specified use 0.5 for down\n // state and 0 for up state.\n var pressure = 0;\n if (inDict.pressure) {\n pressure = inDict.pressure;\n } else {\n pressure = e.buttons ? 0.5 : 0;\n }\n\n // add x/y properties aliased to clientX/Y\n e.x = e.clientX;\n e.y = e.clientY;\n\n // define the properties of the PointerEvent interface\n e.pointerId = inDict.pointerId || 0;\n e.width = inDict.width || 0;\n e.height = inDict.height || 0;\n e.pressure = pressure;\n e.tiltX = inDict.tiltX || 0;\n e.tiltY = inDict.tiltY || 0;\n e.pointerType = inDict.pointerType || '';\n e.hwTimestamp = inDict.hwTimestamp || 0;\n e.isPrimary = inDict.isPrimary || false;\n return e;\n }\n };\n\n scope.eventFactory = eventFactory;\n})(window.PolymerGestures);\n","/*\n * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.\n * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt\n * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt\n * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt\n * Code distributed by Google as part of the polymer project is also\n * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt\n */\n\n/**\n * This module implements an map of pointer states\n */\n(function(scope) {\n var USE_MAP = window.Map && window.Map.prototype.forEach;\n var POINTERS_FN = function(){ return this.size; };\n function PointerMap() {\n if (USE_MAP) {\n var m = new Map();\n m.pointers = POINTERS_FN;\n return m;\n } else {\n this.keys = [];\n this.values = [];\n }\n }\n\n PointerMap.prototype = {\n set: function(inId, inEvent) {\n var i = this.keys.indexOf(inId);\n if (i > -1) {\n this.values[i] = inEvent;\n } else {\n this.keys.push(inId);\n this.values.push(inEvent);\n }\n },\n has: function(inId) {\n return this.keys.indexOf(inId) > -1;\n },\n 'delete': function(inId) {\n var i = this.keys.indexOf(inId);\n if (i > -1) {\n this.keys.splice(i, 1);\n this.values.splice(i, 1);\n }\n },\n get: function(inId) {\n var i = this.keys.indexOf(inId);\n return this.values[i];\n },\n clear: function() {\n this.keys.length = 0;\n this.values.length = 0;\n },\n // return value, key, map\n forEach: function(callback, thisArg) {\n this.values.forEach(function(v, i) {\n callback.call(thisArg, v, this.keys[i], this);\n }, this);\n },\n pointers: function() {\n return this.keys.length;\n }\n };\n\n scope.PointerMap = PointerMap;\n})(window.PolymerGestures);\n","/*\n * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.\n * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt\n * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt\n * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt\n * Code distributed by Google as part of the polymer project is also\n * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt\n */\n\n(function(scope) {\n var CLONE_PROPS = [\n // MouseEvent\n 'bubbles',\n 'cancelable',\n 'view',\n 'detail',\n 'screenX',\n 'screenY',\n 'clientX',\n 'clientY',\n 'ctrlKey',\n 'altKey',\n 'shiftKey',\n 'metaKey',\n 'button',\n 'relatedTarget',\n // DOM Level 3\n 'buttons',\n // PointerEvent\n 'pointerId',\n 'width',\n 'height',\n 'pressure',\n 'tiltX',\n 'tiltY',\n 'pointerType',\n 'hwTimestamp',\n 'isPrimary',\n // event instance\n 'type',\n 'target',\n 'currentTarget',\n 'which',\n 'pageX',\n 'pageY',\n 'timeStamp',\n // gesture addons\n 'preventTap',\n 'tapPrevented'\n ];\n\n var CLONE_DEFAULTS = [\n // MouseEvent\n false,\n false,\n null,\n null,\n 0,\n 0,\n 0,\n 0,\n false,\n false,\n false,\n false,\n 0,\n null,\n // DOM Level 3\n 0,\n // PointerEvent\n 0,\n 0,\n 0,\n 0,\n 0,\n 0,\n '',\n 0,\n false,\n // event instance\n '',\n null,\n null,\n 0,\n 0,\n 0,\n 0,\n function(){},\n false\n ];\n\n var HAS_SVG_INSTANCE = (typeof SVGElementInstance !== 'undefined');\n\n var eventFactory = scope.eventFactory;\n /**\n * This module is for normalizing events. Mouse and Touch events will be\n * collected here, and fire PointerEvents that have the same semantics, no\n * matter the source.\n * Events fired:\n * - pointerdown: a pointing is added\n * - pointerup: a pointer is removed\n * - pointermove: a pointer is moved\n * - pointerover: a pointer crosses into an element\n * - pointerout: a pointer leaves an element\n * - pointercancel: a pointer will no longer generate events\n */\n var dispatcher = {\n pointermap: new scope.PointerMap(),\n eventMap: Object.create(null),\n // Scope objects for native events.\n // This exists for ease of testing.\n eventSources: Object.create(null),\n eventSourceList: [],\n gestures: [],\n gestureQueue: [],\n /**\n * Add a new event source that will generate pointer events.\n *\n * `inSource` must contain an array of event names named `events`, and\n * functions with the names specified in the `events` array.\n * @param {string} name A name for the event source\n * @param {Object} source A new source of platform events.\n */\n registerSource: function(name, source) {\n var s = source;\n var newEvents = s.events;\n if (newEvents) {\n newEvents.forEach(function(e) {\n if (s[e]) {\n this.eventMap[e] = s[e].bind(s);\n }\n }, this);\n this.eventSources[name] = s;\n this.eventSourceList.push(s);\n }\n },\n registerGesture: function(name, source) {\n this.gestures.push(source);\n },\n register: function(element) {\n var l = this.eventSourceList.length;\n for (var i = 0, es; (i < l) && (es = this.eventSourceList[i]); i++) {\n // call eventsource register\n es.register.call(es, element);\n }\n },\n unregister: function(element) {\n var l = this.eventSourceList.length;\n for (var i = 0, es; (i < l) && (es = this.eventSourceList[i]); i++) {\n // call eventsource register\n es.unregister.call(es, element);\n }\n },\n // EVENTS\n down: function(inEvent) {\n this.fireEvent('down', inEvent);\n },\n move: function(inEvent) {\n // pipe move events into gesture queue directly\n inEvent.type = 'move';\n this.fillGestureQueue(inEvent);\n },\n up: function(inEvent) {\n this.fireEvent('up', inEvent);\n },\n // LISTENER LOGIC\n eventHandler: function(inEvent) {\n // This is used to prevent multiple dispatch of events from\n // platform events. This can happen when two elements in different scopes\n // are set up to create pointer events, which is relevant to Shadow DOM.\n if (inEvent._handledByPG) {\n return;\n }\n var type = inEvent.type;\n var fn = this.eventMap && this.eventMap[type];\n if (fn) {\n fn(inEvent);\n }\n inEvent._handledByPG = true;\n },\n // set up event listeners\n listen: function(target, events) {\n events.forEach(function(e) {\n this.addEvent(target, e);\n }, this);\n },\n // remove event listeners\n unlisten: function(target, events) {\n events.forEach(function(e) {\n this.removeEvent(target, e);\n }, this);\n },\n addEvent: function(target, eventName) {\n target.addEventListener(eventName, this.boundHandler);\n },\n removeEvent: function(target, eventName) {\n target.removeEventListener(eventName, this.boundHandler);\n },\n // EVENT CREATION AND TRACKING\n /**\n * Creates a new Event of type `inType`, based on the information in\n * `inEvent`.\n *\n * @param {string} inType A string representing the type of event to create\n * @param {Event} inEvent A platform event with a target\n * @return {Event} A PointerEvent of type `inType`\n */\n makeEvent: function(inType, inEvent) {\n var e = eventFactory.makePointerEvent(inType, inEvent);\n e.preventDefault = inEvent.preventDefault;\n e._target = e._target || inEvent.target;\n return e;\n },\n // make and dispatch an event in one call\n fireEvent: function(inType, inEvent) {\n var e = this.makeEvent(inType, inEvent);\n return this.dispatchEvent(e);\n },\n /**\n * Returns a snapshot of inEvent, with writable properties.\n *\n * @param {Event} inEvent An event that contains properties to copy.\n * @return {Object} An object containing shallow copies of `inEvent`'s\n * properties.\n */\n cloneEvent: function(inEvent) {\n var eventCopy = Object.create(null), p;\n for (var i = 0; i < CLONE_PROPS.length; i++) {\n p = CLONE_PROPS[i];\n eventCopy[p] = inEvent[p] || CLONE_DEFAULTS[i];\n // Work around SVGInstanceElement shadow tree\n // Return the <use> element that is represented by the instance for Safari, Chrome, IE.\n // This is the behavior implemented by Firefox.\n if (HAS_SVG_INSTANCE && (p === 'target' || p === 'relatedTarget')) {\n if (eventCopy[p] instanceof SVGElementInstance) {\n eventCopy[p] = eventCopy[p].correspondingUseElement;\n }\n }\n }\n // keep the semantics of preventDefault\n eventCopy.preventDefault = inEvent.preventDefault;\n return eventCopy;\n },\n /**\n * Dispatches the event to its target.\n *\n * @param {Event} inEvent The event to be dispatched.\n * @return {Boolean} True if an event handler returns true, false otherwise.\n */\n dispatchEvent: function(inEvent) {\n var t = inEvent._target;\n if (t) {\n t.dispatchEvent(inEvent);\n // clone the event for the gesture system to process\n // clone after dispatch to pick up gesture prevention code\n var clone = this.cloneEvent(inEvent);\n clone.target = inEvent._target;\n this.fillGestureQueue(clone);\n }\n },\n gestureTrigger: function() {\n // process the gesture queue\n for (var i = 0, e; i < this.gestureQueue.length; i++) {\n e = this.gestureQueue[i];\n for (var j = 0, g; j < this.gestures.length; j++) {\n g = this.gestures[j];\n if (g.events.indexOf(e.type) >= 0) {\n g[e.type].call(g, e);\n }\n }\n }\n this.gestureQueue.length = 0;\n },\n fillGestureQueue: function(ev) {\n // only trigger the gesture queue once\n if (!this.gestureQueue.length) {\n requestAnimationFrame(this.boundGestureTrigger);\n }\n this.gestureQueue.push(ev);\n }\n };\n dispatcher.boundHandler = dispatcher.eventHandler.bind(dispatcher);\n dispatcher.boundGestureTrigger = dispatcher.gestureTrigger.bind(dispatcher);\n scope.dispatcher = dispatcher;\n scope.register = dispatcher.register.bind(dispatcher);\n scope.unregister = dispatcher.unregister.bind(dispatcher);\n})(window.PolymerGestures);\n","/*\n * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.\n * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt\n * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt\n * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt\n * Code distributed by Google as part of the polymer project is also\n * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt\n */\n\n/**\n * This module uses Mutation Observers to dynamically adjust which nodes will\n * generate Pointer Events.\n *\n * All nodes that wish to generate Pointer Events must have the attribute\n * `touch-action` set to `none`.\n */\n(function(scope) {\n var forEach = Array.prototype.forEach.call.bind(Array.prototype.forEach);\n var map = Array.prototype.map.call.bind(Array.prototype.map);\n var toArray = Array.prototype.slice.call.bind(Array.prototype.slice);\n var filter = Array.prototype.filter.call.bind(Array.prototype.filter);\n var MO = window.MutationObserver || window.WebKitMutationObserver;\n var SELECTOR = '[touch-action]';\n var OBSERVER_INIT = {\n subtree: true,\n childList: true,\n attributes: true,\n attributeOldValue: true,\n attributeFilter: ['touch-action']\n };\n\n function Installer(add, remove, changed, binder) {\n this.addCallback = add.bind(binder);\n this.removeCallback = remove.bind(binder);\n this.changedCallback = changed.bind(binder);\n if (MO) {\n this.observer = new MO(this.mutationWatcher.bind(this));\n }\n }\n\n Installer.prototype = {\n watchSubtree: function(target) {\n // Only watch scopes that can target find, as these are top-level.\n // Otherwise we can see duplicate additions and removals that add noise.\n //\n // TODO(dfreedman): For some instances with ShadowDOMPolyfill, we can see\n // a removal without an insertion when a node is redistributed among\n // shadows. Since it all ends up correct in the document, watching only\n // the document will yield the correct mutations to watch.\n if (scope.targetFinding.canTarget(target)) {\n this.observer.observe(target, OBSERVER_INIT);\n }\n },\n enableOnSubtree: function(target) {\n this.watchSubtree(target);\n if (target === document && document.readyState !== 'complete') {\n this.installOnLoad();\n } else {\n this.installNewSubtree(target);\n }\n },\n installNewSubtree: function(target) {\n forEach(this.findElements(target), this.addElement, this);\n },\n findElements: function(target) {\n if (target.querySelectorAll) {\n return target.querySelectorAll(SELECTOR);\n }\n return [];\n },\n removeElement: function(el) {\n this.removeCallback(el);\n },\n addElement: function(el) {\n this.addCallback(el);\n },\n elementChanged: function(el, oldValue) {\n this.changedCallback(el, oldValue);\n },\n concatLists: function(accum, list) {\n return accum.concat(toArray(list));\n },\n // register all touch-action = none nodes on document load\n installOnLoad: function() {\n document.addEventListener('readystatechange', function() {\n if (document.readyState === 'complete') {\n this.installNewSubtree(document);\n }\n }.bind(this));\n },\n isElement: function(n) {\n return n.nodeType === Node.ELEMENT_NODE;\n },\n flattenMutationTree: function(inNodes) {\n // find children with touch-action\n var tree = map(inNodes, this.findElements, this);\n // make sure the added nodes are accounted for\n tree.push(filter(inNodes, this.isElement));\n // flatten the list\n return tree.reduce(this.concatLists, []);\n },\n mutationWatcher: function(mutations) {\n mutations.forEach(this.mutationHandler, this);\n },\n mutationHandler: function(m) {\n if (m.type === 'childList') {\n var added = this.flattenMutationTree(m.addedNodes);\n added.forEach(this.addElement, this);\n var removed = this.flattenMutationTree(m.removedNodes);\n removed.forEach(this.removeElement, this);\n } else if (m.type === 'attributes') {\n this.elementChanged(m.target, m.oldValue);\n }\n }\n };\n\n if (!MO) {\n Installer.prototype.watchSubtree = function(){\n console.warn('PolymerGestures: MutationObservers not found, touch-action will not be dynamically detected');\n };\n }\n\n scope.Installer = Installer;\n})(window.PolymerGestures);\n","/*\n * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.\n * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt\n * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt\n * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt\n * Code distributed by Google as part of the polymer project is also\n * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt\n */\n\n(function (scope) {\n var dispatcher = scope.dispatcher;\n var pointermap = dispatcher.pointermap;\n // radius around touchend that swallows mouse events\n var DEDUP_DIST = 25;\n\n var WHICH_TO_BUTTONS = [0, 1, 4, 2];\n\n var HAS_BUTTONS = false;\n try {\n HAS_BUTTONS = new MouseEvent('test', {buttons: 1}).buttons === 1;\n } catch (e) {}\n\n // handler block for native mouse events\n var mouseEvents = {\n POINTER_ID: 1,\n POINTER_TYPE: 'mouse',\n events: [\n 'mousedown',\n 'mousemove',\n 'mouseup',\n ],\n register: function(target) {\n dispatcher.listen(target, this.events);\n },\n unregister: function(target) {\n dispatcher.unlisten(target, this.events);\n },\n lastTouches: [],\n // collide with the global mouse listener\n isEventSimulatedFromTouch: function(inEvent) {\n var lts = this.lastTouches;\n var x = inEvent.clientX, y = inEvent.clientY;\n for (var i = 0, l = lts.length, t; i < l && (t = lts[i]); i++) {\n // simulated mouse events will be swallowed near a primary touchend\n var dx = Math.abs(x - t.x), dy = Math.abs(y - t.y);\n if (dx <= DEDUP_DIST && dy <= DEDUP_DIST) {\n return true;\n }\n }\n },\n prepareEvent: function(inEvent) {\n var e = dispatcher.cloneEvent(inEvent);\n e.pointerId = this.POINTER_ID;\n e.isPrimary = true;\n e.pointerType = this.POINTER_TYPE;\n if (!HAS_BUTTONS) {\n e.buttons = WHICH_TO_BUTTONS[e.which] || 0;\n }\n return e;\n },\n mousedown: function(inEvent) {\n if (!this.isEventSimulatedFromTouch(inEvent)) {\n var p = pointermap.has(this.POINTER_ID);\n // TODO(dfreedman) workaround for some elements not sending mouseup\n // http://crbug/149091\n if (p) {\n this.mouseup(inEvent);\n }\n var e = this.prepareEvent(inEvent);\n pointermap.set(this.POINTER_ID, inEvent.target);\n dispatcher.down(e);\n }\n },\n mousemove: function(inEvent) {\n if (!this.isEventSimulatedFromTouch(inEvent)) {\n var e = this.prepareEvent(inEvent);\n e.target = pointermap.get(this.POINTER_ID);\n dispatcher.move(e);\n }\n },\n mouseup: function(inEvent) {\n if (!this.isEventSimulatedFromTouch(inEvent)) {\n var e = this.prepareEvent(inEvent);\n e.target = pointermap.get(this.POINTER_ID);\n e.relatedTarget = inEvent.target;\n dispatcher.up(e);\n this.cleanupMouse();\n }\n },\n cleanupMouse: function() {\n pointermap['delete'](this.POINTER_ID);\n }\n };\n\n scope.mouseEvents = mouseEvents;\n})(window.PolymerGestures);\n","/*\n * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.\n * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt\n * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt\n * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt\n * Code distributed by Google as part of the polymer project is also\n * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt\n */\n\n(function(scope) {\n var dispatcher = scope.dispatcher;\n var allShadows = scope.targetFinding.allShadows.bind(scope.targetFinding);\n var pointermap = dispatcher.pointermap;\n var touchMap = Array.prototype.map.call.bind(Array.prototype.map);\n // This should be long enough to ignore compat mouse events made by touch\n var DEDUP_TIMEOUT = 2500;\n var CLICK_COUNT_TIMEOUT = 200;\n var ATTRIB = 'touch-action';\n var INSTALLER;\n var HAS_TOUCH_ACTION = typeof document.head.style.touchAction === 'string';\n\n // handler block for native touch events\n var touchEvents = {\n events: [\n 'touchstart',\n 'touchmove',\n 'touchend',\n 'touchcancel'\n ],\n register: function(target) {\n if (HAS_TOUCH_ACTION) {\n dispatcher.listen(target, this.events);\n } else {\n INSTALLER.enableOnSubtree(target);\n }\n },\n unregister: function(target) {\n if (HAS_TOUCH_ACTION) {\n dispatcher.unlisten(target, this.events);\n } else {\n // TODO(dfreedman): is it worth it to disconnect the MO?\n }\n },\n elementAdded: function(el) {\n var a = el.getAttribute(ATTRIB);\n var st = this.touchActionToScrollType(a);\n if (st) {\n el._scrollType = st;\n dispatcher.listen(el, this.events);\n // set touch-action on shadows as well\n allShadows(el).forEach(function(s) {\n s._scrollType = st;\n dispatcher.listen(s, this.events);\n }, this);\n }\n },\n elementRemoved: function(el) {\n el._scrollType = undefined;\n dispatcher.unlisten(el, this.events);\n // remove touch-action from shadow\n allShadows(el).forEach(function(s) {\n s._scrollType = undefined;\n dispatcher.unlisten(s, this.events);\n }, this);\n },\n elementChanged: function(el, oldValue) {\n var a = el.getAttribute(ATTRIB);\n var st = this.touchActionToScrollType(a);\n var oldSt = this.touchActionToScrollType(oldValue);\n // simply update scrollType if listeners are already established\n if (st && oldSt) {\n el._scrollType = st;\n allShadows(el).forEach(function(s) {\n s._scrollType = st;\n }, this);\n } else if (oldSt) {\n this.elementRemoved(el);\n } else if (st) {\n this.elementAdded(el);\n }\n },\n scrollTypes: {\n EMITTER: 'none',\n XSCROLLER: 'pan-x',\n YSCROLLER: 'pan-y',\n SCROLLER: /^(?:pan-x pan-y)|(?:pan-y pan-x)|auto$/\n },\n touchActionToScrollType: function(touchAction) {\n var t = touchAction;\n var st = this.scrollTypes;\n if (t === 'none') {\n return 'none';\n } else if (t === st.XSCROLLER) {\n return 'X';\n } else if (t === st.YSCROLLER) {\n return 'Y';\n } else if (st.SCROLLER.exec(t)) {\n return 'XY';\n }\n },\n POINTER_TYPE: 'touch',\n firstTouch: null,\n isPrimaryTouch: function(inTouch) {\n return this.firstTouch === inTouch.identifier;\n },\n setPrimaryTouch: function(inTouch) {\n // set primary touch if there no pointers, or the only pointer is the mouse\n if (pointermap.pointers() === 0 || (pointermap.pointers() === 1 && pointermap.has(1))) {\n this.firstTouch = inTouch.identifier;\n this.firstXY = {X: inTouch.clientX, Y: inTouch.clientY};\n this.scrolling = false;\n this.cancelResetClickCount();\n }\n },\n removePrimaryPointer: function(inPointer) {\n if (inPointer.isPrimary) {\n this.firstTouch = null;\n this.firstXY = null;\n this.resetClickCount();\n }\n },\n clickCount: 0,\n resetId: null,\n resetClickCount: function() {\n var fn = function() {\n this.clickCount = 0;\n this.resetId = null;\n }.bind(this);\n this.resetId = setTimeout(fn, CLICK_COUNT_TIMEOUT);\n },\n cancelResetClickCount: function() {\n if (this.resetId) {\n clearTimeout(this.resetId);\n }\n },\n typeToButtons: function(type) {\n var ret = 0;\n if (type === 'touchstart' || type === 'touchmove') {\n ret = 1;\n }\n return ret;\n },\n findTarget: function(touch, id) {\n if (this.currentTouchEvent.type === 'touchstart') {\n return scope.findTarget(touch);\n }\n // reuse target we found in touchstart\n return pointermap.get(id);\n },\n touchToPointer: function(inTouch) {\n var cte = this.currentTouchEvent;\n var e = dispatcher.cloneEvent(inTouch);\n // Spec specifies that pointerId 1 is reserved for Mouse.\n // Touch identifiers can start at 0.\n // Add 2 to the touch identifier for compatibility.\n var id = e.pointerId = inTouch.identifier + 2;\n e.target = this.findTarget(inTouch, id);\n e.bubbles = true;\n e.cancelable = true;\n e.detail = this.clickCount;\n e.buttons = this.typeToButtons(cte.type);\n e.width = inTouch.webkitRadiusX || inTouch.radiusX || 0;\n e.height = inTouch.webkitRadiusY || inTouch.radiusY || 0;\n e.pressure = inTouch.webkitForce || inTouch.force || 0.5;\n e.isPrimary = this.isPrimaryTouch(inTouch);\n e.pointerType = this.POINTER_TYPE;\n // forward touch preventDefaults\n var self = this;\n e.preventDefault = function() {\n self.scrolling = false;\n self.firstXY = null;\n cte.preventDefault();\n };\n return e;\n },\n processTouches: function(inEvent, inFunction) {\n var tl = inEvent.changedTouches;\n this.currentTouchEvent = inEvent;\n for (var i = 0, t; i < tl.length; i++) {\n t = tl[i];\n inFunction.call(this, this.touchToPointer(t));\n }\n },\n // For single axis scrollers, determines whether the element should emit\n // pointer events or behave as a scroller\n shouldScroll: function(inEvent) {\n if (this.firstXY) {\n var ret;\n var scrollAxis = inEvent.currentTarget._scrollType;\n if (scrollAxis === 'none') {\n // this element is a touch-action: none, should never scroll\n ret = false;\n } else if (scrollAxis === 'XY') {\n // this element should always scroll\n ret = true;\n } else {\n var t = inEvent.changedTouches[0];\n // check the intended scroll axis, and other axis\n var a = scrollAxis;\n var oa = scrollAxis === 'Y' ? 'X' : 'Y';\n var da = Math.abs(t['client' + a] - this.firstXY[a]);\n var doa = Math.abs(t['client' + oa] - this.firstXY[oa]);\n // if delta in the scroll axis > delta other axis, scroll instead of\n // making events\n ret = da >= doa;\n }\n this.firstXY = null;\n return ret;\n }\n },\n findTouch: function(inTL, inId) {\n for (var i = 0, l = inTL.length, t; i < l && (t = inTL[i]); i++) {\n if (t.identifier === inId) {\n return true;\n }\n }\n },\n // In some instances, a touchstart can happen without a touchend. This\n // leaves the pointermap in a broken state.\n // Therefore, on every touchstart, we remove the touches that did not fire a\n // touchend event.\n // To keep state globally consistent, we fire a\n // pointercancel for this \"abandoned\" touch\n vacuumTouches: function(inEvent) {\n var tl = inEvent.touches;\n // pointermap.pointers() should be < tl.length here, as the touchstart has not\n // been processed yet.\n if (pointermap.pointers() >= tl.length) {\n var d = [];\n pointermap.forEach(function(value, key) {\n // Never remove pointerId == 1, which is mouse.\n // Touch identifiers are 2 smaller than their pointerId, which is the\n // index in pointermap.\n if (key !== 1 && !this.findTouch(tl, key - 2)) {\n var p = value.out;\n d.push(p);\n }\n }, this);\n d.forEach(this.cancelOut, this);\n }\n },\n touchstart: function(inEvent) {\n this.vacuumTouches(inEvent);\n this.setPrimaryTouch(inEvent.changedTouches[0]);\n this.dedupSynthMouse(inEvent);\n if (!this.scrolling) {\n this.clickCount++;\n this.processTouches(inEvent, this.down);\n }\n },\n down: function(inPointer) {\n var p = pointermap.set(inPointer.pointerId, inPointer.target);\n dispatcher.down(inPointer);\n },\n touchmove: function(inEvent) {\n if (HAS_TOUCH_ACTION) {\n this.processTouches(inEvent, this.move);\n } else {\n if (!this.scrolling) {\n if (this.shouldScroll(inEvent)) {\n this.scrolling = true;\n this.touchcancel(inEvent);\n } else {\n inEvent.preventDefault();\n this.processTouches(inEvent, this.move);\n }\n }\n }\n },\n move: function(inPointer) {\n var pointer = pointermap.get(inPointer.pointerId);\n // a finger drifted off the screen, ignore it\n if (!pointer) {\n return;\n }\n dispatcher.move(inPointer);\n },\n touchend: function(inEvent) {\n this.dedupSynthMouse(inEvent);\n this.processTouches(inEvent, this.up);\n },\n up: function(inPointer) {\n if (!this.scrolling) {\n inPointer.relatedTarget = scope.findTarget(inPointer);\n dispatcher.up(inPointer);\n }\n this.cleanUpPointer(inPointer);\n },\n touchcancel: function(inEvent) {\n this.processTouches(inEvent, this.up);\n },\n cleanUpPointer: function(inPointer) {\n pointermap['delete'](inPointer.pointerId);\n this.removePrimaryPointer(inPointer);\n },\n // prevent synth mouse events from creating pointer events\n dedupSynthMouse: function(inEvent) {\n var lts = scope.mouseEvents.lastTouches;\n var t = inEvent.changedTouches[0];\n // only the primary finger will synth mouse events\n if (this.isPrimaryTouch(t)) {\n // remember x/y of last touch\n var lt = {x: t.clientX, y: t.clientY};\n lts.push(lt);\n var fn = (function(lts, lt){\n var i = lts.indexOf(lt);\n if (i > -1) {\n lts.splice(i, 1);\n }\n }).bind(null, lts, lt);\n setTimeout(fn, DEDUP_TIMEOUT);\n }\n }\n };\n\n if (!HAS_TOUCH_ACTION) {\n INSTALLER = new scope.Installer(touchEvents.elementAdded, touchEvents.elementRemoved, touchEvents.elementChanged, touchEvents);\n }\n\n scope.touchEvents = touchEvents;\n})(window.PolymerGestures);\n","/*\n * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.\n * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt\n * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt\n * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt\n * Code distributed by Google as part of the polymer project is also\n * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt\n */\n\n(function(scope) {\n var dispatcher = scope.dispatcher;\n var pointermap = dispatcher.pointermap;\n var HAS_BITMAP_TYPE = window.MSPointerEvent && typeof window.MSPointerEvent.MSPOINTER_TYPE_MOUSE === 'number';\n var msEvents = {\n events: [\n 'MSPointerDown',\n 'MSPointerMove',\n 'MSPointerUp',\n 'MSPointerCancel',\n ],\n register: function(target) {\n dispatcher.listen(target, this.events);\n },\n unregister: function(target) {\n dispatcher.unlisten(target, this.events);\n },\n POINTER_TYPES: [\n '',\n 'unavailable',\n 'touch',\n 'pen',\n 'mouse'\n ],\n prepareEvent: function(inEvent) {\n var e = inEvent;\n if (HAS_BITMAP_TYPE) {\n e = dispatcher.cloneEvent(inEvent);\n e.pointerType = this.POINTER_TYPES[inEvent.pointerType];\n }\n return e;\n },\n cleanup: function(id) {\n pointermap['delete'](id);\n },\n MSPointerDown: function(inEvent) {\n pointermap.set(inEvent.pointerId, inEvent.target);\n var e = this.prepareEvent(inEvent);\n dispatcher.down(e);\n },\n MSPointerMove: function(inEvent) {\n var e = this.prepareEvent(inEvent);\n e.target = pointermap.get(inEvent.pointerId);\n dispatcher.move(e);\n },\n MSPointerUp: function(inEvent) {\n var e = this.prepareEvent(inEvent);\n e.target = pointermap.get(inEvent.pointerId);\n e.relatedTarget = inEvent.target;\n dispatcher.up(e);\n this.cleanup(inEvent.pointerId);\n },\n MSPointerCancel: function(inEvent) {\n this.MSPointerUp(inEvent);\n }\n };\n\n scope.msEvents = msEvents;\n})(window.PolymerGestures);\n","/*\n * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.\n * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt\n * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt\n * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt\n * Code distributed by Google as part of the polymer project is also\n * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt\n */\n\n(function(scope) {\n var dispatcher = scope.dispatcher;\n var pointermap = dispatcher.pointermap;\n var pointerEvents = {\n events: [\n 'pointerdown',\n 'pointermove',\n 'pointerup',\n 'pointercancel'\n ],\n prepareEvent: function(inEvent) {\n return dispatcher.cloneEvent(inEvent);\n },\n register: function(target) {\n dispatcher.listen(target, this.events);\n },\n unregister: function(target) {\n dispatcher.unlisten(target, this.events);\n },\n cleanup: function(id) {\n pointermap['delete'](id);\n },\n pointerdown: function(inEvent) {\n pointermap.set(inEvent.pointerId, inEvent.target);\n var e = this.prepareEvent(inEvent);\n dispatcher.down(e);\n },\n pointermove: function(inEvent) {\n var e = this.prepareEvent(inEvent);\n e.target = pointermap.get(inEvent.pointerId);\n dispatcher.move(e);\n },\n pointerup: function(inEvent) {\n var e = this.prepareEvent(inEvent);\n e.target = pointermap.get(inEvent.pointerId);\n e.relatedTarget = inEvent.target;\n dispatcher.up(e);\n this.cleanup(inEvent.pointerId);\n },\n pointercancel: function(inEvent) {\n this.pointerup(inEvent);\n }\n };\n\n scope.pointerEvents = pointerEvents;\n})(window.PolymerGestures);\n","/*\n * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.\n * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt\n * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt\n * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt\n * Code distributed by Google as part of the polymer project is also\n * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt\n */\n\n/**\n * This module contains the handlers for native platform events.\n * From here, the dispatcher is called to create unified pointer events.\n * Included are touch events (v1), mouse events, and MSPointerEvents.\n */\n(function(scope) {\n var dispatcher = scope.dispatcher;\n\n if (window.PointerEvent) {\n dispatcher.registerSource('pointer', scope.pointerEvents);\n } else if (window.navigator.msPointerEnabled) {\n dispatcher.registerSource('ms', scope.msEvents);\n } else {\n dispatcher.registerSource('mouse', scope.mouseEvents);\n if (window.ontouchstart !== undefined) {\n dispatcher.registerSource('touch', scope.touchEvents);\n }\n }\n\n dispatcher.register(document);\n})(window.PolymerGestures);\n","/*\n * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.\n * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt\n * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt\n * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt\n * Code distributed by Google as part of the polymer project is also\n * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt\n */\n\n/**\n * This event denotes the beginning of a series of tracking events.\n *\n * @module PointerGestures\n * @submodule Events\n * @class trackstart\n */\n/**\n * Pixels moved in the x direction since trackstart.\n * @type Number\n * @property dx\n */\n/**\n * Pixes moved in the y direction since trackstart.\n * @type Number\n * @property dy\n */\n/**\n * Pixels moved in the x direction since the last track.\n * @type Number\n * @property ddx\n */\n/**\n * Pixles moved in the y direction since the last track.\n * @type Number\n * @property ddy\n */\n/**\n * The clientX position of the track gesture.\n * @type Number\n * @property clientX\n */\n/**\n * The clientY position of the track gesture.\n * @type Number\n * @property clientY\n */\n/**\n * The pageX position of the track gesture.\n * @type Number\n * @property pageX\n */\n/**\n * The pageY position of the track gesture.\n * @type Number\n * @property pageY\n */\n/**\n * The screenX position of the track gesture.\n * @type Number\n * @property screenX\n */\n/**\n * The screenY position of the track gesture.\n * @type Number\n * @property screenY\n */\n/**\n * The last x axis direction of the pointer.\n * @type Number\n * @property xDirection\n */\n/**\n * The last y axis direction of the pointer.\n * @type Number\n * @property yDirection\n */\n/**\n * A shared object between all tracking events.\n * @type Object\n * @property trackInfo\n */\n/**\n * The element currently under the pointer.\n * @type Element\n * @property relatedTarget\n */\n/**\n * The type of pointer that make the track gesture.\n * @type String\n * @property pointerType\n */\n/**\n *\n * This event fires for all pointer movement being tracked.\n *\n * @class track\n * @extends trackstart\n */\n/**\n * This event fires when the pointer is no longer being tracked.\n *\n * @class trackend\n * @extends trackstart\n */\n\n (function(scope) {\n var dispatcher = scope.dispatcher;\n var eventFactory = scope.eventFactory;\n var pointermap = new scope.PointerMap();\n var track = {\n events: [\n 'down',\n 'move',\n 'up',\n ],\n WIGGLE_THRESHOLD: 4,\n clampDir: function(inDelta) {\n return inDelta > 0 ? 1 : -1;\n },\n calcPositionDelta: function(inA, inB) {\n var x = 0, y = 0;\n if (inA && inB) {\n x = inB.pageX - inA.pageX;\n y = inB.pageY - inA.pageY;\n }\n return {x: x, y: y};\n },\n fireTrack: function(inType, inEvent, inTrackingData) {\n var t = inTrackingData;\n var d = this.calcPositionDelta(t.downEvent, inEvent);\n var dd = this.calcPositionDelta(t.lastMoveEvent, inEvent);\n if (dd.x) {\n t.xDirection = this.clampDir(dd.x);\n }\n if (dd.y) {\n t.yDirection = this.clampDir(dd.y);\n }\n var e = eventFactory.makeGestureEvent(inType, {\n bubbles: true,\n cancelable: true,\n dx: d.x,\n dy: d.y,\n ddx: dd.x,\n ddy: dd.y,\n x: inEvent.x,\n y: inEvent.y,\n clientX: inEvent.clientX,\n clientY: inEvent.clientY,\n pageX: inEvent.pageX,\n pageY: inEvent.pageY,\n screenX: inEvent.screenX,\n screenY: inEvent.screenY,\n xDirection: t.xDirection,\n yDirection: t.yDirection,\n trackInfo: t.trackInfo,\n relatedTarget: inEvent.relatedTarget,\n pointerType: inEvent.pointerType,\n pointerId: inEvent.pointerId\n });\n t.downTarget.dispatchEvent(e);\n },\n down: function(inEvent) {\n if (inEvent.isPrimary && (inEvent.pointerType === 'mouse' ? inEvent.buttons === 1 : true)) {\n var p = {\n downEvent: inEvent,\n downTarget: inEvent.target,\n trackInfo: {},\n lastMoveEvent: null,\n xDirection: 0,\n yDirection: 0,\n tracking: false\n };\n pointermap.set(inEvent.pointerId, p);\n }\n },\n move: function(inEvent) {\n var p = pointermap.get(inEvent.pointerId);\n if (p) {\n if (!p.tracking) {\n var d = this.calcPositionDelta(p.downEvent, inEvent);\n var move = d.x * d.x + d.y * d.y;\n // start tracking only if finger moves more than WIGGLE_THRESHOLD\n if (move > this.WIGGLE_THRESHOLD) {\n p.tracking = true;\n this.fireTrack('trackstart', p.downEvent, p);\n this.fireTrack('track', inEvent, p);\n }\n } else {\n this.fireTrack('track', inEvent, p);\n }\n p.lastMoveEvent = inEvent;\n }\n },\n up: function(inEvent) {\n var p = pointermap.get(inEvent.pointerId);\n if (p) {\n if (p.tracking) {\n this.fireTrack('trackend', inEvent, p);\n }\n pointermap.delete(inEvent.pointerId);\n }\n }\n };\n dispatcher.registerGesture('track', track);\n })(window.PolymerGestures);\n","/*\n * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.\n * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt\n * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt\n * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt\n * Code distributed by Google as part of the polymer project is also\n * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt\n */\n\n/**\n * This event is fired when a pointer quickly goes down and up, and is used to\n * denote activation.\n *\n * Any gesture event can prevent the tap event from being created by calling\n * `event.preventTap`.\n *\n * Any pointer event can prevent the tap by setting the `tapPrevented` property\n * on itself.\n *\n * @module PointerGestures\n * @submodule Events\n * @class tap\n */\n/**\n * X axis position of the tap.\n * @property x\n * @type Number\n */\n/**\n * Y axis position of the tap.\n * @property y\n * @type Number\n */\n/**\n * Type of the pointer that made the tap.\n * @property pointerType\n * @type String\n */\n(function(scope) {\n var dispatcher = scope.dispatcher;\n var eventFactory = scope.eventFactory;\n var pointermap = new scope.PointerMap();\n var tap = {\n events: [\n 'down',\n 'up'\n ],\n down: function(inEvent) {\n if (inEvent.isPrimary && !inEvent.tapPrevented) {\n pointermap.set(inEvent.pointerId, {\n target: inEvent.target,\n buttons: inEvent.buttons,\n x: inEvent.clientX,\n y: inEvent.clientY\n });\n }\n },\n shouldTap: function(e, downState) {\n if (e.pointerType === 'mouse') {\n // only allow left click to tap for mouse\n return downState.buttons === 1;\n }\n return true;\n },\n up: function(inEvent) {\n var start = pointermap.get(inEvent.pointerId);\n if (start && this.shouldTap(inEvent, start)) {\n // up.relatedTarget is target currently under finger\n var t = scope.targetFinding.LCA(start.target, inEvent.relatedTarget);\n if (t) {\n var e = eventFactory.makeGestureEvent('tap', {\n bubbles: true,\n cancelable: true,\n x: inEvent.clientX,\n y: inEvent.clientY,\n detail: inEvent.detail,\n pointerType: inEvent.pointerType,\n pointerId: inEvent.pointerId,\n altKey: inEvent.altKey,\n ctrlKey: inEvent.ctrlKey,\n metaKey: inEvent.metaKey,\n shiftKey: inEvent.shiftKey\n });\n t.dispatchEvent(e);\n }\n }\n pointermap.delete(inEvent.pointerId);\n }\n };\n // patch eventFactory to remove id from tap's pointermap for preventTap calls\n eventFactory.preventTap = function(e) {\n return function() {\n pointermap.delete(e.pointerId);\n };\n };\n dispatcher.registerGesture('tap', tap);\n})(window.PolymerGestures);\n","/*\n Copyright (C) 2013 Ariya Hidayat <ariya.hidayat@gmail.com>\n Copyright (C) 2013 Thaddee Tyl <thaddee.tyl@gmail.com>\n Copyright (C) 2012 Ariya Hidayat <ariya.hidayat@gmail.com>\n Copyright (C) 2012 Mathias Bynens <mathias@qiwi.be>\n Copyright (C) 2012 Joost-Wim Boekesteijn <joost-wim@boekesteijn.nl>\n Copyright (C) 2012 Kris Kowal <kris.kowal@cixar.com>\n Copyright (C) 2012 Yusuke Suzuki <utatane.tea@gmail.com>\n Copyright (C) 2012 Arpad Borsos <arpad.borsos@googlemail.com>\n Copyright (C) 2011 Ariya Hidayat <ariya.hidayat@gmail.com>\n\n Redistribution and use in source and binary forms, with or without\n modification, are permitted provided that the following conditions are met:\n\n * Redistributions of source code must retain the above copyright\n notice, this list of conditions and the following disclaimer.\n * Redistributions in binary form must reproduce the above copyright\n notice, this list of conditions and the following disclaimer in the\n documentation and/or other materials provided with the distribution.\n\n THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\"\n AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\n IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\n ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY\n DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\n (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\n LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND\n ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF\n THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n*/\n\n(function (global) {\n 'use strict';\n\n var Token,\n TokenName,\n Syntax,\n Messages,\n source,\n index,\n length,\n delegate,\n lookahead,\n state;\n\n Token = {\n BooleanLiteral: 1,\n EOF: 2,\n Identifier: 3,\n Keyword: 4,\n NullLiteral: 5,\n NumericLiteral: 6,\n Punctuator: 7,\n StringLiteral: 8\n };\n\n TokenName = {};\n TokenName[Token.BooleanLiteral] = 'Boolean';\n TokenName[Token.EOF] = '<end>';\n TokenName[Token.Identifier] = 'Identifier';\n TokenName[Token.Keyword] = 'Keyword';\n TokenName[Token.NullLiteral] = 'Null';\n TokenName[Token.NumericLiteral] = 'Numeric';\n TokenName[Token.Punctuator] = 'Punctuator';\n TokenName[Token.StringLiteral] = 'String';\n\n Syntax = {\n ArrayExpression: 'ArrayExpression',\n BinaryExpression: 'BinaryExpression',\n CallExpression: 'CallExpression',\n ConditionalExpression: 'ConditionalExpression',\n EmptyStatement: 'EmptyStatement',\n ExpressionStatement: 'ExpressionStatement',\n Identifier: 'Identifier',\n Literal: 'Literal',\n LabeledStatement: 'LabeledStatement',\n LogicalExpression: 'LogicalExpression',\n MemberExpression: 'MemberExpression',\n ObjectExpression: 'ObjectExpression',\n Program: 'Program',\n Property: 'Property',\n ThisExpression: 'ThisExpression',\n UnaryExpression: 'UnaryExpression'\n };\n\n // Error messages should be identical to V8.\n Messages = {\n UnexpectedToken: 'Unexpected token %0',\n UnknownLabel: 'Undefined label \\'%0\\'',\n Redeclaration: '%0 \\'%1\\' has already been declared'\n };\n\n // Ensure the condition is true, otherwise throw an error.\n // This is only to have a better contract semantic, i.e. another safety net\n // to catch a logic error. The condition shall be fulfilled in normal case.\n // Do NOT use this to enforce a certain condition on any user input.\n\n function assert(condition, message) {\n if (!condition) {\n throw new Error('ASSERT: ' + message);\n }\n }\n\n function isDecimalDigit(ch) {\n return (ch >= 48 && ch <= 57); // 0..9\n }\n\n\n // 7.2 White Space\n\n function isWhiteSpace(ch) {\n return (ch === 32) || // space\n (ch === 9) || // tab\n (ch === 0xB) ||\n (ch === 0xC) ||\n (ch === 0xA0) ||\n (ch >= 0x1680 && '\\u1680\\u180E\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200A\\u202F\\u205F\\u3000\\uFEFF'.indexOf(String.fromCharCode(ch)) > 0);\n }\n\n // 7.3 Line Terminators\n\n function isLineTerminator(ch) {\n return (ch === 10) || (ch === 13) || (ch === 0x2028) || (ch === 0x2029);\n }\n\n // 7.6 Identifier Names and Identifiers\n\n function isIdentifierStart(ch) {\n return (ch === 36) || (ch === 95) || // $ (dollar) and _ (underscore)\n (ch >= 65 && ch <= 90) || // A..Z\n (ch >= 97 && ch <= 122); // a..z\n }\n\n function isIdentifierPart(ch) {\n return (ch === 36) || (ch === 95) || // $ (dollar) and _ (underscore)\n (ch >= 65 && ch <= 90) || // A..Z\n (ch >= 97 && ch <= 122) || // a..z\n (ch >= 48 && ch <= 57); // 0..9\n }\n\n // 7.6.1.1 Keywords\n\n function isKeyword(id) {\n return (id === 'this')\n }\n\n // 7.4 Comments\n\n function skipWhitespace() {\n while (index < length && isWhiteSpace(source.charCodeAt(index))) {\n ++index;\n }\n }\n\n function getIdentifier() {\n var start, ch;\n\n start = index++;\n while (index < length) {\n ch = source.charCodeAt(index);\n if (isIdentifierPart(ch)) {\n ++index;\n } else {\n break;\n }\n }\n\n return source.slice(start, index);\n }\n\n function scanIdentifier() {\n var start, id, type;\n\n start = index;\n\n id = getIdentifier();\n\n // There is no keyword or literal with only one character.\n // Thus, it must be an identifier.\n if (id.length === 1) {\n type = Token.Identifier;\n } else if (isKeyword(id)) {\n type = Token.Keyword;\n } else if (id === 'null') {\n type = Token.NullLiteral;\n } else if (id === 'true' || id === 'false') {\n type = Token.BooleanLiteral;\n } else {\n type = Token.Identifier;\n }\n\n return {\n type: type,\n value: id,\n range: [start, index]\n };\n }\n\n\n // 7.7 Punctuators\n\n function scanPunctuator() {\n var start = index,\n code = source.charCodeAt(index),\n code2,\n ch1 = source[index],\n ch2;\n\n switch (code) {\n\n // Check for most common single-character punctuators.\n case 46: // . dot\n case 40: // ( open bracket\n case 41: // ) close bracket\n case 59: // ; semicolon\n case 44: // , comma\n case 123: // { open curly brace\n case 125: // } close curly brace\n case 91: // [\n case 93: // ]\n case 58: // :\n case 63: // ?\n ++index;\n return {\n type: Token.Punctuator,\n value: String.fromCharCode(code),\n range: [start, index]\n };\n\n default:\n code2 = source.charCodeAt(index + 1);\n\n // '=' (char #61) marks an assignment or comparison operator.\n if (code2 === 61) {\n switch (code) {\n case 37: // %\n case 38: // &\n case 42: // *:\n case 43: // +\n case 45: // -\n case 47: // /\n case 60: // <\n case 62: // >\n case 124: // |\n index += 2;\n return {\n type: Token.Punctuator,\n value: String.fromCharCode(code) + String.fromCharCode(code2),\n range: [start, index]\n };\n\n case 33: // !\n case 61: // =\n index += 2;\n\n // !== and ===\n if (source.charCodeAt(index) === 61) {\n ++index;\n }\n return {\n type: Token.Punctuator,\n value: source.slice(start, index),\n range: [start, index]\n };\n default:\n break;\n }\n }\n break;\n }\n\n // Peek more characters.\n\n ch2 = source[index + 1];\n\n // Other 2-character punctuators: && ||\n\n if (ch1 === ch2 && ('&|'.indexOf(ch1) >= 0)) {\n index += 2;\n return {\n type: Token.Punctuator,\n value: ch1 + ch2,\n range: [start, index]\n };\n }\n\n if ('<>=!+-*%&|^/'.indexOf(ch1) >= 0) {\n ++index;\n return {\n type: Token.Punctuator,\n value: ch1,\n range: [start, index]\n };\n }\n\n throwError({}, Messages.UnexpectedToken, 'ILLEGAL');\n }\n\n // 7.8.3 Numeric Literals\n function scanNumericLiteral() {\n var number, start, ch;\n\n ch = source[index];\n assert(isDecimalDigit(ch.charCodeAt(0)) || (ch === '.'),\n 'Numeric literal must start with a decimal digit or a decimal point');\n\n start = index;\n number = '';\n if (ch !== '.') {\n number = source[index++];\n ch = source[index];\n\n // Hex number starts with '0x'.\n // Octal number starts with '0'.\n if (number === '0') {\n // decimal number starts with '0' such as '09' is illegal.\n if (ch && isDecimalDigit(ch.charCodeAt(0))) {\n throwError({}, Messages.UnexpectedToken, 'ILLEGAL');\n }\n }\n\n while (isDecimalDigit(source.charCodeAt(index))) {\n number += source[index++];\n }\n ch = source[index];\n }\n\n if (ch === '.') {\n number += source[index++];\n while (isDecimalDigit(source.charCodeAt(index))) {\n number += source[index++];\n }\n ch = source[index];\n }\n\n if (ch === 'e' || ch === 'E') {\n number += source[index++];\n\n ch = source[index];\n if (ch === '+' || ch === '-') {\n number += source[index++];\n }\n if (isDecimalDigit(source.charCodeAt(index))) {\n while (isDecimalDigit(source.charCodeAt(index))) {\n number += source[index++];\n }\n } else {\n throwError({}, Messages.UnexpectedToken, 'ILLEGAL');\n }\n }\n\n if (isIdentifierStart(source.charCodeAt(index))) {\n throwError({}, Messages.UnexpectedToken, 'ILLEGAL');\n }\n\n return {\n type: Token.NumericLiteral,\n value: parseFloat(number),\n range: [start, index]\n };\n }\n\n // 7.8.4 String Literals\n\n function scanStringLiteral() {\n var str = '', quote, start, ch, octal = false;\n\n quote = source[index];\n assert((quote === '\\'' || quote === '\"'),\n 'String literal must starts with a quote');\n\n start = index;\n ++index;\n\n while (index < length) {\n ch = source[index++];\n\n if (ch === quote) {\n quote = '';\n break;\n } else if (ch === '\\\\') {\n ch = source[index++];\n if (!ch || !isLineTerminator(ch.charCodeAt(0))) {\n switch (ch) {\n case 'n':\n str += '\\n';\n break;\n case 'r':\n str += '\\r';\n break;\n case 't':\n str += '\\t';\n break;\n case 'b':\n str += '\\b';\n break;\n case 'f':\n str += '\\f';\n break;\n case 'v':\n str += '\\x0B';\n break;\n\n default:\n str += ch;\n break;\n }\n } else {\n if (ch === '\\r' && source[index] === '\\n') {\n ++index;\n }\n }\n } else if (isLineTerminator(ch.charCodeAt(0))) {\n break;\n } else {\n str += ch;\n }\n }\n\n if (quote !== '') {\n throwError({}, Messages.UnexpectedToken, 'ILLEGAL');\n }\n\n return {\n type: Token.StringLiteral,\n value: str,\n octal: octal,\n range: [start, index]\n };\n }\n\n function isIdentifierName(token) {\n return token.type === Token.Identifier ||\n token.type === Token.Keyword ||\n token.type === Token.BooleanLiteral ||\n token.type === Token.NullLiteral;\n }\n\n function advance() {\n var ch;\n\n skipWhitespace();\n\n if (index >= length) {\n return {\n type: Token.EOF,\n range: [index, index]\n };\n }\n\n ch = source.charCodeAt(index);\n\n // Very common: ( and ) and ;\n if (ch === 40 || ch === 41 || ch === 58) {\n return scanPunctuator();\n }\n\n // String literal starts with single quote (#39) or double quote (#34).\n if (ch === 39 || ch === 34) {\n return scanStringLiteral();\n }\n\n if (isIdentifierStart(ch)) {\n return scanIdentifier();\n }\n\n // Dot (.) char #46 can also start a floating-point number, hence the need\n // to check the next character.\n if (ch === 46) {\n if (isDecimalDigit(source.charCodeAt(index + 1))) {\n return scanNumericLiteral();\n }\n return scanPunctuator();\n }\n\n if (isDecimalDigit(ch)) {\n return scanNumericLiteral();\n }\n\n return scanPunctuator();\n }\n\n function lex() {\n var token;\n\n token = lookahead;\n index = token.range[1];\n\n lookahead = advance();\n\n index = token.range[1];\n\n return token;\n }\n\n function peek() {\n var pos;\n\n pos = index;\n lookahead = advance();\n index = pos;\n }\n\n // Throw an exception\n\n function throwError(token, messageFormat) {\n var error,\n args = Array.prototype.slice.call(arguments, 2),\n msg = messageFormat.replace(\n /%(\\d)/g,\n function (whole, index) {\n assert(index < args.length, 'Message reference must be in range');\n return args[index];\n }\n );\n\n error = new Error(msg);\n error.index = index;\n error.description = msg;\n throw error;\n }\n\n // Throw an exception because of the token.\n\n function throwUnexpected(token) {\n throwError(token, Messages.UnexpectedToken, token.value);\n }\n\n // Expect the next token to match the specified punctuator.\n // If not, an exception will be thrown.\n\n function expect(value) {\n var token = lex();\n if (token.type !== Token.Punctuator || token.value !== value) {\n throwUnexpected(token);\n }\n }\n\n // Return true if the next token matches the specified punctuator.\n\n function match(value) {\n return lookahead.type === Token.Punctuator && lookahead.value === value;\n }\n\n // Return true if the next token matches the specified keyword\n\n function matchKeyword(keyword) {\n return lookahead.type === Token.Keyword && lookahead.value === keyword;\n }\n\n function consumeSemicolon() {\n // Catch the very common case first: immediately a semicolon (char #59).\n if (source.charCodeAt(index) === 59) {\n lex();\n return;\n }\n\n skipWhitespace();\n\n if (match(';')) {\n lex();\n return;\n }\n\n if (lookahead.type !== Token.EOF && !match('}')) {\n throwUnexpected(lookahead);\n }\n }\n\n // 11.1.4 Array Initialiser\n\n function parseArrayInitialiser() {\n var elements = [];\n\n expect('[');\n\n while (!match(']')) {\n if (match(',')) {\n lex();\n elements.push(null);\n } else {\n elements.push(parseExpression());\n\n if (!match(']')) {\n expect(',');\n }\n }\n }\n\n expect(']');\n\n return delegate.createArrayExpression(elements);\n }\n\n // 11.1.5 Object Initialiser\n\n function parseObjectPropertyKey() {\n var token;\n\n skipWhitespace();\n token = lex();\n\n // Note: This function is called only from parseObjectProperty(), where\n // EOF and Punctuator tokens are already filtered out.\n if (token.type === Token.StringLiteral || token.type === Token.NumericLiteral) {\n return delegate.createLiteral(token);\n }\n\n return delegate.createIdentifier(token.value);\n }\n\n function parseObjectProperty() {\n var token, key;\n\n token = lookahead;\n skipWhitespace();\n\n if (token.type === Token.EOF || token.type === Token.Punctuator) {\n throwUnexpected(token);\n }\n\n key = parseObjectPropertyKey();\n expect(':');\n return delegate.createProperty('init', key, parseExpression());\n }\n\n function parseObjectInitialiser() {\n var properties = [];\n\n expect('{');\n\n while (!match('}')) {\n properties.push(parseObjectProperty());\n\n if (!match('}')) {\n expect(',');\n }\n }\n\n expect('}');\n\n return delegate.createObjectExpression(properties);\n }\n\n // 11.1.6 The Grouping Operator\n\n function parseGroupExpression() {\n var expr;\n\n expect('(');\n\n expr = parseExpression();\n\n expect(')');\n\n return expr;\n }\n\n\n // 11.1 Primary Expressions\n\n function parsePrimaryExpression() {\n var type, token, expr;\n\n if (match('(')) {\n return parseGroupExpression();\n }\n\n type = lookahead.type;\n\n if (type === Token.Identifier) {\n expr = delegate.createIdentifier(lex().value);\n } else if (type === Token.StringLiteral || type === Token.NumericLiteral) {\n expr = delegate.createLiteral(lex());\n } else if (type === Token.Keyword) {\n if (matchKeyword('this')) {\n lex();\n expr = delegate.createThisExpression();\n }\n } else if (type === Token.BooleanLiteral) {\n token = lex();\n token.value = (token.value === 'true');\n expr = delegate.createLiteral(token);\n } else if (type === Token.NullLiteral) {\n token = lex();\n token.value = null;\n expr = delegate.createLiteral(token);\n } else if (match('[')) {\n expr = parseArrayInitialiser();\n } else if (match('{')) {\n expr = parseObjectInitialiser();\n }\n\n if (expr) {\n return expr;\n }\n\n throwUnexpected(lex());\n }\n\n // 11.2 Left-Hand-Side Expressions\n\n function parseArguments() {\n var args = [];\n\n expect('(');\n\n if (!match(')')) {\n while (index < length) {\n args.push(parseExpression());\n if (match(')')) {\n break;\n }\n expect(',');\n }\n }\n\n expect(')');\n\n return args;\n }\n\n function parseNonComputedProperty() {\n var token;\n\n token = lex();\n\n if (!isIdentifierName(token)) {\n throwUnexpected(token);\n }\n\n return delegate.createIdentifier(token.value);\n }\n\n function parseNonComputedMember() {\n expect('.');\n\n return parseNonComputedProperty();\n }\n\n function parseComputedMember() {\n var expr;\n\n expect('[');\n\n expr = parseExpression();\n\n expect(']');\n\n return expr;\n }\n\n function parseLeftHandSideExpression() {\n var expr, property;\n\n expr = parsePrimaryExpression();\n\n while (match('.') || match('[')) {\n if (match('[')) {\n property = parseComputedMember();\n expr = delegate.createMemberExpression('[', expr, property);\n } else {\n property = parseNonComputedMember();\n expr = delegate.createMemberExpression('.', expr, property);\n }\n }\n\n return expr;\n }\n\n // 11.3 Postfix Expressions\n\n var parsePostfixExpression = parseLeftHandSideExpression;\n\n // 11.4 Unary Operators\n\n function parseUnaryExpression() {\n var token, expr;\n\n if (lookahead.type !== Token.Punctuator && lookahead.type !== Token.Keyword) {\n expr = parsePostfixExpression();\n } else if (match('+') || match('-') || match('!')) {\n token = lex();\n expr = parseUnaryExpression();\n expr = delegate.createUnaryExpression(token.value, expr);\n } else if (matchKeyword('delete') || matchKeyword('void') || matchKeyword('typeof')) {\n throwError({}, Messages.UnexpectedToken);\n } else {\n expr = parsePostfixExpression();\n }\n\n return expr;\n }\n\n function binaryPrecedence(token) {\n var prec = 0;\n\n if (token.type !== Token.Punctuator && token.type !== Token.Keyword) {\n return 0;\n }\n\n switch (token.value) {\n case '||':\n prec = 1;\n break;\n\n case '&&':\n prec = 2;\n break;\n\n case '==':\n case '!=':\n case '===':\n case '!==':\n prec = 6;\n break;\n\n case '<':\n case '>':\n case '<=':\n case '>=':\n case 'instanceof':\n prec = 7;\n break;\n\n case 'in':\n prec = 7;\n break;\n\n case '+':\n case '-':\n prec = 9;\n break;\n\n case '*':\n case '/':\n case '%':\n prec = 11;\n break;\n\n default:\n break;\n }\n\n return prec;\n }\n\n // 11.5 Multiplicative Operators\n // 11.6 Additive Operators\n // 11.7 Bitwise Shift Operators\n // 11.8 Relational Operators\n // 11.9 Equality Operators\n // 11.10 Binary Bitwise Operators\n // 11.11 Binary Logical Operators\n\n function parseBinaryExpression() {\n var expr, token, prec, stack, right, operator, left, i;\n\n left = parseUnaryExpression();\n\n token = lookahead;\n prec = binaryPrecedence(token);\n if (prec === 0) {\n return left;\n }\n token.prec = prec;\n lex();\n\n right = parseUnaryExpression();\n\n stack = [left, token, right];\n\n while ((prec = binaryPrecedence(lookahead)) > 0) {\n\n // Reduce: make a binary expression from the three topmost entries.\n while ((stack.length > 2) && (prec <= stack[stack.length - 2].prec)) {\n right = stack.pop();\n operator = stack.pop().value;\n left = stack.pop();\n expr = delegate.createBinaryExpression(operator, left, right);\n stack.push(expr);\n }\n\n // Shift.\n token = lex();\n token.prec = prec;\n stack.push(token);\n expr = parseUnaryExpression();\n stack.push(expr);\n }\n\n // Final reduce to clean-up the stack.\n i = stack.length - 1;\n expr = stack[i];\n while (i > 1) {\n expr = delegate.createBinaryExpression(stack[i - 1].value, stack[i - 2], expr);\n i -= 2;\n }\n\n return expr;\n }\n\n\n // 11.12 Conditional Operator\n\n function parseConditionalExpression() {\n var expr, consequent, alternate;\n\n expr = parseBinaryExpression();\n\n if (match('?')) {\n lex();\n consequent = parseConditionalExpression();\n expect(':');\n alternate = parseConditionalExpression();\n\n expr = delegate.createConditionalExpression(expr, consequent, alternate);\n }\n\n return expr;\n }\n\n // Simplification since we do not support AssignmentExpression.\n var parseExpression = parseConditionalExpression;\n\n // Polymer Syntax extensions\n\n // Filter ::\n // Identifier\n // Identifier \"(\" \")\"\n // Identifier \"(\" FilterArguments \")\"\n\n function parseFilter() {\n var identifier, args;\n\n identifier = lex();\n\n if (identifier.type !== Token.Identifier) {\n throwUnexpected(identifier);\n }\n\n args = match('(') ? parseArguments() : [];\n\n return delegate.createFilter(identifier.value, args);\n }\n\n // Filters ::\n // \"|\" Filter\n // Filters \"|\" Filter\n\n function parseFilters() {\n while (match('|')) {\n lex();\n parseFilter();\n }\n }\n\n // TopLevel ::\n // LabelledExpressions\n // AsExpression\n // InExpression\n // FilterExpression\n\n // AsExpression ::\n // FilterExpression as Identifier\n\n // InExpression ::\n // Identifier, Identifier in FilterExpression\n // Identifier in FilterExpression\n\n // FilterExpression ::\n // Expression\n // Expression Filters\n\n function parseTopLevel() {\n skipWhitespace();\n peek();\n\n var expr = parseExpression();\n if (expr) {\n if (lookahead.value === ',' || lookahead.value == 'in' &&\n expr.type === Syntax.Identifier) {\n parseInExpression(expr);\n } else {\n parseFilters();\n if (lookahead.value === 'as') {\n parseAsExpression(expr);\n } else {\n delegate.createTopLevel(expr);\n }\n }\n }\n\n if (lookahead.type !== Token.EOF) {\n throwUnexpected(lookahead);\n }\n }\n\n function parseAsExpression(expr) {\n lex(); // as\n var identifier = lex().value;\n delegate.createAsExpression(expr, identifier);\n }\n\n function parseInExpression(identifier) {\n var indexName;\n if (lookahead.value === ',') {\n lex();\n if (lookahead.type !== Token.Identifier)\n throwUnexpected(lookahead);\n indexName = lex().value;\n }\n\n lex(); // in\n var expr = parseExpression();\n parseFilters();\n delegate.createInExpression(identifier.name, indexName, expr);\n }\n\n function parse(code, inDelegate) {\n delegate = inDelegate;\n source = code;\n index = 0;\n length = source.length;\n lookahead = null;\n state = {\n labelSet: {}\n };\n\n return parseTopLevel();\n }\n\n global.esprima = {\n parse: parse\n };\n})(this);\n","// Copyright (c) 2014 The Polymer Project Authors. All rights reserved.\n// This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt\n// The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt\n// The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt\n// Code distributed by Google as part of the polymer project is also\n// subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt\n\n(function (global) {\n 'use strict';\n\n // JScript does not have __proto__. We wrap all object literals with\n // createObject which uses Object.create, Object.defineProperty and\n // Object.getOwnPropertyDescriptor to create a new object that does the exact\n // same thing. The main downside to this solution is that we have to extract\n // all those property descriptors for IE.\n var createObject = ('__proto__' in {}) ?\n function(obj) { return obj; } :\n function(obj) {\n var proto = obj.__proto__;\n if (!proto)\n return obj;\n var newObject = Object.create(proto);\n Object.getOwnPropertyNames(obj).forEach(function(name) {\n Object.defineProperty(newObject, name,\n Object.getOwnPropertyDescriptor(obj, name));\n });\n return newObject;\n };\n\n function prepareBinding(expressionText, name, node, filterRegistry) {\n var expression;\n try {\n expression = getExpression(expressionText);\n if (expression.scopeIdent &&\n (node.nodeType !== Node.ELEMENT_NODE ||\n node.tagName !== 'TEMPLATE' ||\n (name !== 'bind' && name !== 'repeat'))) {\n throw Error('as and in can only be used within <template bind/repeat>');\n }\n } catch (ex) {\n console.error('Invalid expression syntax: ' + expressionText, ex);\n return;\n }\n\n return function(model, node, oneTime) {\n var binding = expression.getBinding(model, filterRegistry, oneTime);\n if (expression.scopeIdent && binding) {\n node.polymerExpressionScopeIdent_ = expression.scopeIdent;\n if (expression.indexIdent)\n node.polymerExpressionIndexIdent_ = expression.indexIdent;\n }\n\n return binding;\n }\n }\n\n // TODO(rafaelw): Implement simple LRU.\n var expressionParseCache = Object.create(null);\n\n function getExpression(expressionText) {\n var expression = expressionParseCache[expressionText];\n if (!expression) {\n var delegate = new ASTDelegate();\n esprima.parse(expressionText, delegate);\n expression = new Expression(delegate);\n expressionParseCache[expressionText] = expression;\n }\n return expression;\n }\n\n function Literal(value) {\n this.value = value;\n this.valueFn_ = undefined;\n }\n\n Literal.prototype = {\n valueFn: function() {\n if (!this.valueFn_) {\n var value = this.value;\n this.valueFn_ = function() {\n return value;\n }\n }\n\n return this.valueFn_;\n }\n }\n\n function IdentPath(name) {\n this.name = name;\n this.path = Path.get(name);\n }\n\n IdentPath.prototype = {\n valueFn: function() {\n if (!this.valueFn_) {\n var name = this.name;\n var path = this.path;\n this.valueFn_ = function(model, observer) {\n if (observer)\n observer.addPath(model, path);\n\n return path.getValueFrom(model);\n }\n }\n\n return this.valueFn_;\n },\n\n setValue: function(model, newValue) {\n if (this.path.length == 1);\n model = findScope(model, this.path[0]);\n\n return this.path.setValueFrom(model, newValue);\n }\n };\n\n function MemberExpression(object, property, accessor) {\n // convert literal computed property access where literal value is a value\n // path to ident dot-access.\n if (accessor == '[' &&\n property instanceof Literal &&\n Path.get(property.value).valid) {\n accessor = '.';\n property = new IdentPath(property.value);\n }\n\n this.dynamicDeps = typeof object == 'function' || object.dynamic;\n\n this.dynamic = typeof property == 'function' ||\n property.dynamic ||\n accessor == '[';\n\n this.simplePath =\n !this.dynamic &&\n !this.dynamicDeps &&\n property instanceof IdentPath &&\n (object instanceof MemberExpression || object instanceof IdentPath);\n\n this.object = this.simplePath ? object : getFn(object);\n this.property = accessor == '.' ? property : getFn(property);\n }\n\n MemberExpression.prototype = {\n get fullPath() {\n if (!this.fullPath_) {\n var last = this.object instanceof IdentPath ?\n this.object.name : this.object.fullPath;\n this.fullPath_ = Path.get(last + '.' + this.property.name);\n }\n\n return this.fullPath_;\n },\n\n valueFn: function() {\n if (!this.valueFn_) {\n var object = this.object;\n\n if (this.simplePath) {\n var path = this.fullPath;\n\n this.valueFn_ = function(model, observer) {\n if (observer)\n observer.addPath(model, path);\n\n return path.getValueFrom(model);\n };\n } else if (this.property instanceof IdentPath) {\n var path = Path.get(this.property.name);\n\n this.valueFn_ = function(model, observer) {\n var context = object(model, observer);\n\n if (observer)\n observer.addPath(context, path);\n\n return path.getValueFrom(context);\n }\n } else {\n // Computed property.\n var property = this.property;\n\n this.valueFn_ = function(model, observer) {\n var context = object(model, observer);\n var propName = property(model, observer);\n if (observer)\n observer.addPath(context, propName);\n\n return context ? context[propName] : undefined;\n };\n }\n }\n return this.valueFn_;\n },\n\n setValue: function(model, newValue) {\n if (this.simplePath) {\n this.fullPath.setValueFrom(model, newValue);\n return newValue;\n }\n\n var object = this.object(model);\n var propName = this.property instanceof IdentPath ? this.property.name :\n this.property(model);\n return object[propName] = newValue;\n }\n };\n\n function Filter(name, args) {\n this.name = name;\n this.args = [];\n for (var i = 0; i < args.length; i++) {\n this.args[i] = getFn(args[i]);\n }\n }\n\n Filter.prototype = {\n transform: function(value, toModelDirection, filterRegistry, model,\n observer) {\n var fn = filterRegistry[this.name];\n var context = model;\n if (fn) {\n context = undefined;\n } else {\n fn = context[this.name];\n if (!fn) {\n console.error('Cannot find filter: ' + this.name);\n return;\n }\n }\n\n // If toModelDirection is falsey, then the \"normal\" (dom-bound) direction\n // is used. Otherwise, it looks for a 'toModel' property function on the\n // object.\n if (toModelDirection) {\n fn = fn.toModel;\n } else if (typeof fn.toDOM == 'function') {\n fn = fn.toDOM;\n }\n\n if (typeof fn != 'function') {\n console.error('No ' + (toModelDirection ? 'toModel' : 'toDOM') +\n ' found on' + this.name);\n return;\n }\n\n var args = [value];\n for (var i = 0; i < this.args.length; i++) {\n args[i + 1] = getFn(this.args[i])(model, observer);\n }\n\n return fn.apply(context, args);\n }\n };\n\n function notImplemented() { throw Error('Not Implemented'); }\n\n var unaryOperators = {\n '+': function(v) { return +v; },\n '-': function(v) { return -v; },\n '!': function(v) { return !v; }\n };\n\n var binaryOperators = {\n '+': function(l, r) { return l+r; },\n '-': function(l, r) { return l-r; },\n '*': function(l, r) { return l*r; },\n '/': function(l, r) { return l/r; },\n '%': function(l, r) { return l%r; },\n '<': function(l, r) { return l<r; },\n '>': function(l, r) { return l>r; },\n '<=': function(l, r) { return l<=r; },\n '>=': function(l, r) { return l>=r; },\n '==': function(l, r) { return l==r; },\n '!=': function(l, r) { return l!=r; },\n '===': function(l, r) { return l===r; },\n '!==': function(l, r) { return l!==r; },\n '&&': function(l, r) { return l&&r; },\n '||': function(l, r) { return l||r; },\n };\n\n function getFn(arg) {\n return typeof arg == 'function' ? arg : arg.valueFn();\n }\n\n function ASTDelegate() {\n this.expression = null;\n this.filters = [];\n this.deps = {};\n this.currentPath = undefined;\n this.scopeIdent = undefined;\n this.indexIdent = undefined;\n this.dynamicDeps = false;\n }\n\n ASTDelegate.prototype = {\n createUnaryExpression: function(op, argument) {\n if (!unaryOperators[op])\n throw Error('Disallowed operator: ' + op);\n\n argument = getFn(argument);\n\n return function(model, observer) {\n return unaryOperators[op](argument(model, observer));\n };\n },\n\n createBinaryExpression: function(op, left, right) {\n if (!binaryOperators[op])\n throw Error('Disallowed operator: ' + op);\n\n left = getFn(left);\n right = getFn(right);\n\n return function(model, observer) {\n return binaryOperators[op](left(model, observer),\n right(model, observer));\n };\n },\n\n createConditionalExpression: function(test, consequent, alternate) {\n test = getFn(test);\n consequent = getFn(consequent);\n alternate = getFn(alternate);\n\n return function(model, observer) {\n return test(model, observer) ?\n consequent(model, observer) : alternate(model, observer);\n }\n },\n\n createIdentifier: function(name) {\n var ident = new IdentPath(name);\n ident.type = 'Identifier';\n return ident;\n },\n\n createMemberExpression: function(accessor, object, property) {\n var ex = new MemberExpression(object, property, accessor);\n if (ex.dynamicDeps)\n this.dynamicDeps = true;\n return ex;\n },\n\n createLiteral: function(token) {\n return new Literal(token.value);\n },\n\n createArrayExpression: function(elements) {\n for (var i = 0; i < elements.length; i++)\n elements[i] = getFn(elements[i]);\n\n return function(model, observer) {\n var arr = []\n for (var i = 0; i < elements.length; i++)\n arr.push(elements[i](model, observer));\n return arr;\n }\n },\n\n createProperty: function(kind, key, value) {\n return {\n key: key instanceof IdentPath ? key.name : key.value,\n value: value\n };\n },\n\n createObjectExpression: function(properties) {\n for (var i = 0; i < properties.length; i++)\n properties[i].value = getFn(properties[i].value);\n\n return function(model, observer) {\n var obj = {};\n for (var i = 0; i < properties.length; i++)\n obj[properties[i].key] = properties[i].value(model, observer);\n return obj;\n }\n },\n\n createFilter: function(name, args) {\n this.filters.push(new Filter(name, args));\n },\n\n createAsExpression: function(expression, scopeIdent) {\n this.expression = expression;\n this.scopeIdent = scopeIdent;\n },\n\n createInExpression: function(scopeIdent, indexIdent, expression) {\n this.expression = expression;\n this.scopeIdent = scopeIdent;\n this.indexIdent = indexIdent;\n },\n\n createTopLevel: function(expression) {\n this.expression = expression;\n },\n\n createThisExpression: notImplemented\n }\n\n function ConstantObservable(value) {\n this.value_ = value;\n }\n\n ConstantObservable.prototype = {\n open: function() { return this.value_; },\n discardChanges: function() { return this.value_; },\n deliver: function() {},\n close: function() {},\n }\n\n function Expression(delegate) {\n this.scopeIdent = delegate.scopeIdent;\n this.indexIdent = delegate.indexIdent;\n\n if (!delegate.expression)\n throw Error('No expression found.');\n\n this.expression = delegate.expression;\n getFn(this.expression); // forces enumeration of path dependencies\n\n this.filters = delegate.filters;\n this.dynamicDeps = delegate.dynamicDeps;\n }\n\n Expression.prototype = {\n getBinding: function(model, filterRegistry, oneTime) {\n if (oneTime)\n return this.getValue(model, undefined, filterRegistry);\n\n var observer = new CompoundObserver();\n // captures deps.\n var firstValue = this.getValue(model, observer, filterRegistry);\n var firstTime = true;\n var self = this;\n\n function valueFn() {\n // deps cannot have changed on first value retrieval.\n if (firstTime) {\n firstTime = false;\n return firstValue;\n }\n\n if (self.dynamicDeps)\n observer.startReset();\n\n var value = self.getValue(model,\n self.dynamicDeps ? observer : undefined,\n filterRegistry);\n if (self.dynamicDeps)\n observer.finishReset();\n\n return value;\n }\n\n function setValueFn(newValue) {\n self.setValue(model, newValue, filterRegistry);\n return newValue;\n }\n\n return new ObserverTransform(observer, valueFn, setValueFn, true);\n },\n\n getValue: function(model, observer, filterRegistry) {\n var value = getFn(this.expression)(model, observer);\n for (var i = 0; i < this.filters.length; i++) {\n value = this.filters[i].transform(value, false, filterRegistry, model,\n observer);\n }\n\n return value;\n },\n\n setValue: function(model, newValue, filterRegistry) {\n var count = this.filters ? this.filters.length : 0;\n while (count-- > 0) {\n newValue = this.filters[count].transform(newValue, true, filterRegistry,\n model);\n }\n\n if (this.expression.setValue)\n return this.expression.setValue(model, newValue);\n }\n }\n\n /**\n * Converts a style property name to a css property name. For example:\n * \"WebkitUserSelect\" to \"-webkit-user-select\"\n */\n function convertStylePropertyName(name) {\n return String(name).replace(/[A-Z]/g, function(c) {\n return '-' + c.toLowerCase();\n });\n }\n\n function isEventHandler(name) {\n return name[0] === 'o' &&\n name[1] === 'n' &&\n name[2] === '-';\n }\n\n var mixedCaseEventTypes = {};\n [\n 'webkitAnimationStart',\n 'webkitAnimationEnd',\n 'webkitTransitionEnd',\n 'DOMFocusOut',\n 'DOMFocusIn',\n 'DOMMouseScroll'\n ].forEach(function(e) {\n mixedCaseEventTypes[e.toLowerCase()] = e;\n });\n\n var parentScopeName = '@' + Math.random().toString(36).slice(2);\n\n // Single ident paths must bind directly to the appropriate scope object.\n // I.e. Pushed values in two-bindings need to be assigned to the actual model\n // object.\n function findScope(model, prop) {\n while (model[parentScopeName] &&\n !Object.prototype.hasOwnProperty.call(model, prop)) {\n model = model[parentScopeName];\n }\n\n return model;\n }\n\n function resolveEventReceiver(model, path, node) {\n if (path.length == 0)\n return undefined;\n\n if (path.length == 1)\n return findScope(model, path[0]);\n\n for (var i = 0; model != null && i < path.length - 1; i++) {\n model = model[path[i]];\n }\n\n return model;\n }\n\n function prepareEventBinding(path, name, polymerExpressions) {\n var eventType = name.substring(3);\n eventType = mixedCaseEventTypes[eventType] || eventType;\n\n return function(model, node, oneTime) {\n var fn, receiver, handler;\n if (typeof polymerExpressions.resolveEventHandler == 'function') {\n handler = function(e) {\n fn = fn || polymerExpressions.resolveEventHandler(model, path, node);\n if (fn) {\n fn(e, e.detail, e.currentTarget);\n if (Platform && typeof Platform.flush == 'function')\n Platform.flush();\n }\n };\n } else {\n handler = function(e) {\n fn = fn || path.getValueFrom(model);\n receiver = receiver || resolveEventReceiver(model, path, node);\n if (fn) {\n fn.apply(receiver, [e, e.detail, e.currentTarget]);\n if (Platform && typeof Platform.flush == 'function')\n Platform.flush();\n }\n };\n }\n\n node.addEventListener(eventType, handler);\n\n if (oneTime)\n return;\n\n function bindingValue() {\n return '{{ ' + path + ' }}';\n }\n\n return {\n open: bindingValue,\n discardChanges: bindingValue,\n close: function() {\n node.removeEventListener(eventType, handler);\n }\n };\n }\n }\n\n function isLiteralExpression(pathString) {\n switch (pathString) {\n case '':\n return false;\n\n case 'false':\n case 'null':\n case 'true':\n return true;\n }\n\n if (!isNaN(Number(pathString)))\n return true;\n\n return false;\n };\n\n function PolymerExpressions() {}\n\n PolymerExpressions.prototype = {\n // \"built-in\" filters\n styleObject: function(value) {\n var parts = [];\n for (var key in value) {\n parts.push(convertStylePropertyName(key) + ': ' + value[key]);\n }\n return parts.join('; ');\n },\n\n tokenList: function(value) {\n var tokens = [];\n for (var key in value) {\n if (value[key])\n tokens.push(key);\n }\n return tokens.join(' ');\n },\n\n // binding delegate API\n prepareInstancePositionChanged: function(template) {\n var indexIdent = template.polymerExpressionIndexIdent_;\n if (!indexIdent)\n return;\n\n return function(templateInstance, index) {\n templateInstance.model[indexIdent] = index;\n };\n },\n\n prepareBinding: function(pathString, name, node) {\n var path = Path.get(pathString);\n if (isEventHandler(name)) {\n if (!path.valid) {\n console.error('on-* bindings must be simple path expressions');\n return;\n }\n\n return prepareEventBinding(path, name, this);\n }\n\n if (!isLiteralExpression(pathString) && path.valid) {\n if (path.length == 1) {\n return function(model, node, oneTime) {\n if (oneTime)\n return path.getValueFrom(model);\n\n var scope = findScope(model, path[0]);\n return new PathObserver(scope, path);\n };\n }\n return; // bail out early if pathString is simple path.\n }\n\n return prepareBinding(pathString, name, node, this);\n },\n\n prepareInstanceModel: function(template) {\n var scopeName = template.polymerExpressionScopeIdent_;\n if (!scopeName)\n return;\n\n var parentScope = template.templateInstance ?\n template.templateInstance.model :\n template.model;\n\n var indexName = template.polymerExpressionIndexIdent_;\n\n return function(model) {\n var scope = Object.create(parentScope);\n scope[scopeName] = model;\n scope[indexName] = undefined;\n scope[parentScopeName] = parentScope;\n return scope;\n };\n }\n };\n\n global.PolymerExpressions = PolymerExpressions;\n if (global.exposeGetExpression)\n global.getExpression_ = getExpression;\n\n global.PolymerExpressions.prepareEventBinding = prepareEventBinding;\n})(this);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\nPolymer = {};\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n// TODO(sorvell): this ensures Polymer is an object and not a function\n// Platform is currently defining it as a function to allow for async loading\n// of polymer; once we refine the loading process this likely goes away.\nif (typeof window.Polymer === 'function') {\n Polymer = {};\n}\n\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(scope) {\n\n // copy own properties from 'api' to 'prototype, with name hinting for 'super'\n function extend(prototype, api) {\n if (prototype && api) {\n // use only own properties of 'api'\n Object.getOwnPropertyNames(api).forEach(function(n) {\n // acquire property descriptor\n var pd = Object.getOwnPropertyDescriptor(api, n);\n if (pd) {\n // clone property via descriptor\n Object.defineProperty(prototype, n, pd);\n // cache name-of-method for 'super' engine\n if (typeof pd.value == 'function') {\n // hint the 'super' engine\n pd.value.nom = n;\n }\n }\n });\n }\n return prototype;\n }\n \n // exports\n\n scope.extend = extend;\n\n})(Polymer);\n","/* \n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n(function(scope) {\n \n // usage\n \n // invoke cb.call(this) in 100ms, unless the job is re-registered,\n // which resets the timer\n // \n // this.myJob = this.job(this.myJob, cb, 100)\n //\n // returns a job handle which can be used to re-register a job\n\n var Job = function(inContext) {\n this.context = inContext;\n this.boundComplete = this.complete.bind(this)\n };\n Job.prototype = {\n go: function(callback, wait) {\n this.callback = callback;\n var h;\n if (!wait) {\n h = requestAnimationFrame(this.boundComplete);\n this.handle = function() {\n cancelAnimationFrame(h);\n }\n } else {\n h = setTimeout(this.boundComplete, wait);\n this.handle = function() {\n clearTimeout(h);\n }\n }\n },\n stop: function() {\n if (this.handle) {\n this.handle();\n this.handle = null;\n }\n },\n complete: function() {\n if (this.handle) {\n this.stop();\n this.callback.call(this.context);\n }\n }\n };\n \n function job(job, callback, wait) {\n if (job) {\n job.stop();\n } else {\n job = new Job(this);\n }\n job.go(callback, wait);\n return job;\n }\n \n // exports \n\n scope.job = job;\n \n})(Polymer);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(scope) {\n\n var registry = {};\n\n HTMLElement.register = function(tag, prototype) {\n registry[tag] = prototype;\n }\n\n // get prototype mapped to node <tag>\n HTMLElement.getPrototypeForTag = function(tag) {\n var prototype = !tag ? HTMLElement.prototype : registry[tag];\n // TODO(sjmiles): creating <tag> is likely to have wasteful side-effects\n return prototype || Object.getPrototypeOf(document.createElement(tag));\n };\n\n // we have to flag propagation stoppage for the event dispatcher\n var originalStopPropagation = Event.prototype.stopPropagation;\n Event.prototype.stopPropagation = function() {\n this.cancelBubble = true;\n originalStopPropagation.apply(this, arguments);\n };\n \n // TODO(sorvell): remove when we're sure imports does not need\n // to load stylesheets\n /*\n HTMLImports.importer.preloadSelectors += \n ', polymer-element link[rel=stylesheet]';\n */\n})(Polymer);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n (function(scope) {\n // super\n\n // `arrayOfArgs` is an optional array of args like one might pass\n // to `Function.apply`\n\n // TODO(sjmiles):\n // $super must be installed on an instance or prototype chain\n // as `super`, and invoked via `this`, e.g.\n // `this.super();`\n\n // will not work if function objects are not unique, for example,\n // when using mixins.\n // The memoization strategy assumes each function exists on only one \n // prototype chain i.e. we use the function object for memoizing)\n // perhaps we can bookkeep on the prototype itself instead\n function $super(arrayOfArgs) {\n // since we are thunking a method call, performance is important here: \n // memoize all lookups, once memoized the fast path calls no other \n // functions\n //\n // find the caller (cannot be `strict` because of 'caller')\n var caller = $super.caller;\n // memoized 'name of method' \n var nom = caller.nom;\n // memoized next implementation prototype\n var _super = caller._super;\n if (!_super) {\n if (!nom) {\n nom = caller.nom = nameInThis.call(this, caller);\n }\n if (!nom) {\n console.warn('called super() on a method not installed declaratively (has no .nom property)');\n }\n // super prototype is either cached or we have to find it\n // by searching __proto__ (at the 'top')\n _super = memoizeSuper(caller, nom, getPrototypeOf(this));\n }\n if (!_super) {\n // if _super is falsey, there is no super implementation\n //console.warn('called $super(' + nom + ') where there is no super implementation');\n } else {\n // our super function\n var fn = _super[nom];\n // memoize information so 'fn' can call 'super'\n if (!fn._super) {\n memoizeSuper(fn, nom, _super);\n }\n // invoke the inherited method\n // if 'fn' is not function valued, this will throw\n return fn.apply(this, arrayOfArgs || []);\n }\n }\n\n function nextSuper(proto, name, caller) {\n // look for an inherited prototype that implements name\n while (proto) {\n if ((proto[name] !== caller) && proto[name]) {\n return proto;\n }\n proto = getPrototypeOf(proto);\n }\n }\n\n function memoizeSuper(method, name, proto) {\n // find and cache next prototype containing `name`\n // we need the prototype so we can do another lookup\n // from here\n method._super = nextSuper(proto, name, method);\n if (method._super) {\n // _super is a prototype, the actual method is _super[name]\n // tag super method with it's name for further lookups\n method._super[name].nom = name;\n }\n return method._super;\n }\n\n function nameInThis(value) {\n var p = this.__proto__;\n while (p && p !== HTMLElement.prototype) {\n // TODO(sjmiles): getOwnPropertyNames is absurdly expensive\n var n$ = Object.getOwnPropertyNames(p);\n for (var i=0, l=n$.length, n; i<l && (n=n$[i]); i++) {\n var d = Object.getOwnPropertyDescriptor(p, n);\n if (typeof d.value === 'function' && d.value === value) {\n return n;\n }\n }\n p = p.__proto__;\n }\n }\n\n // NOTE: In some platforms (IE10) the prototype chain is faked via \n // __proto__. Therefore, always get prototype via __proto__ instead of\n // the more standard Object.getPrototypeOf.\n function getPrototypeOf(prototype) {\n return prototype.__proto__;\n }\n\n // utility function to precompute name tags for functions\n // in a (unchained) prototype\n function hintSuper(prototype) {\n // tag functions with their prototype name to optimize\n // super call invocations\n for (var n in prototype) {\n var pd = Object.getOwnPropertyDescriptor(prototype, n);\n if (pd && typeof pd.value === 'function') {\n pd.value.nom = n;\n }\n }\n }\n\n // exports\n\n scope.super = $super;\n\n})(Polymer);\n","/* \n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n(function(scope) {\n\n var typeHandlers = {\n string: function(value) {\n return value;\n },\n date: function(value) {\n return new Date(Date.parse(value) || Date.now());\n },\n boolean: function(value) {\n if (value === '') {\n return true;\n }\n return value === 'false' ? false : !!value;\n },\n number: function(value) {\n var n = parseFloat(value);\n // hex values like \"0xFFFF\" parseFloat as 0\n if (n === 0) {\n n = parseInt(value);\n }\n return isNaN(n) ? value : n;\n // this code disabled because encoded values (like \"0xFFFF\")\n // do not round trip to their original format\n //return (String(floatVal) === value) ? floatVal : value;\n },\n object: function(value, currentValue) {\n if (currentValue === null) {\n return value;\n }\n try {\n // If the string is an object, we can parse is with the JSON library.\n // include convenience replace for single-quotes. If the author omits\n // quotes altogether, parse will fail.\n return JSON.parse(value.replace(/'/g, '\"'));\n } catch(e) {\n // The object isn't valid JSON, return the raw value\n return value;\n }\n },\n // avoid deserialization of functions\n 'function': function(value, currentValue) {\n return currentValue;\n }\n };\n\n function deserializeValue(value, currentValue) {\n // attempt to infer type from default value\n var inferredType = typeof currentValue;\n // invent 'date' type value for Date\n if (currentValue instanceof Date) {\n inferredType = 'date';\n }\n // delegate deserialization via type string\n return typeHandlers[inferredType](value, currentValue);\n }\n\n // exports\n\n scope.deserializeValue = deserializeValue;\n\n})(Polymer);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(scope) {\n\n // imports\n\n var extend = scope.extend;\n\n // module\n\n var api = {};\n\n api.declaration = {};\n api.instance = {};\n\n api.publish = function(apis, prototype) {\n for (var n in apis) {\n extend(prototype, apis[n]);\n }\n }\n\n // exports\n\n scope.api = api;\n\n})(Polymer);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(scope) {\n\n var utils = {\n /**\n * Invokes a function asynchronously. The context of the callback\n * function is bound to 'this' automatically.\n * @method async\n * @param {Function|String} method\n * @param {any|Array} args\n * @param {number} timeout\n */\n async: function(method, args, timeout) {\n // when polyfilling Object.observe, ensure changes \n // propagate before executing the async method\n Platform.flush();\n // second argument to `apply` must be an array\n args = (args && args.length) ? args : [args];\n // function to invoke\n var fn = function() {\n (this[method] || method).apply(this, args);\n }.bind(this);\n // execute `fn` sooner or later\n var handle = timeout ? setTimeout(fn, timeout) :\n requestAnimationFrame(fn);\n // NOTE: switch on inverting handle to determine which time is used.\n return timeout ? handle : ~handle;\n },\n cancelAsync: function(handle) {\n if (handle < 0) {\n cancelAnimationFrame(~handle);\n } else {\n clearTimeout(handle);\n }\n },\n /**\n * Fire an event.\n * @method fire\n * @returns {Object} event\n * @param {string} type An event name.\n * @param {any} detail\n * @param {Node} onNode Target node.\n */\n fire: function(type, detail, onNode, bubbles, cancelable) {\n var node = onNode || this;\n var detail = detail || {};\n var event = new CustomEvent(type, {\n bubbles: (bubbles !== undefined ? bubbles : true), \n cancelable: (cancelable !== undefined ? cancelable : true), \n detail: detail\n });\n node.dispatchEvent(event);\n return event;\n },\n /**\n * Fire an event asynchronously.\n * @method asyncFire\n * @param {string} type An event name.\n * @param detail\n * @param {Node} toNode Target node.\n */\n asyncFire: function(/*inType, inDetail*/) {\n this.async(\"fire\", arguments);\n },\n /**\n * Remove class from old, add class to anew, if they exist\n * @param classFollows\n * @param anew A node.\n * @param old A node\n * @param className\n */\n classFollows: function(anew, old, className) {\n if (old) {\n old.classList.remove(className);\n }\n if (anew) {\n anew.classList.add(className);\n }\n }\n };\n\n // no-operation function for handy stubs\n var nop = function() {};\n\n // null-object for handy stubs\n var nob = {};\n\n // deprecated\n\n utils.asyncMethod = utils.async;\n\n // exports\n\n scope.api.instance.utils = utils;\n scope.nop = nop;\n scope.nob = nob;\n\n})(Polymer);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n(function(scope) {\n\n // imports\n\n var log = window.logFlags || {};\n var EVENT_PREFIX = 'on-';\n\n // instance events api\n var events = {\n // read-only\n EVENT_PREFIX: EVENT_PREFIX,\n // event listeners on host\n addHostListeners: function() {\n var events = this.eventDelegates;\n log.events && (Object.keys(events).length > 0) && console.log('[%s] addHostListeners:', this.localName, events);\n // NOTE: host events look like bindings but really are not;\n // (1) we don't want the attribute to be set and (2) we want to support\n // multiple event listeners ('host' and 'instance') and Node.bind\n // by default supports 1 thing being bound.\n // We do, however, leverage the event hookup code in PolymerExpressions\n // so that we have a common code path for handling declarative events.\n var self = this, bindable, eventName;\n for (var n in events) {\n eventName = EVENT_PREFIX + n;\n bindable = PolymerExpressions.prepareEventBinding(\n Path.get(events[n]),\n eventName, \n {\n resolveEventHandler: function(model, path, node) {\n var fn = path.getValueFrom(self);\n if (fn) {\n return fn.bind(self);\n }\n }\n }\n );\n bindable(this, this, false);\n }\n },\n // call 'method' or function method on 'obj' with 'args', if the method exists\n dispatchMethod: function(obj, method, args) {\n if (obj) {\n log.events && console.group('[%s] dispatch [%s]', obj.localName, method);\n var fn = typeof method === 'function' ? method : obj[method];\n if (fn) {\n fn[args ? 'apply' : 'call'](obj, args);\n }\n log.events && console.groupEnd();\n Platform.flush();\n }\n }\n };\n\n // exports\n\n scope.api.instance.events = events;\n\n})(Polymer);\n","/*\r\n * Copyright 2013 The Polymer Authors. All rights reserved.\r\n * Use of this source code is governed by a BSD-style\r\n * license that can be found in the LICENSE file.\r\n */\r\n(function(scope) {\r\n\r\n // instance api for attributes\r\n\r\n var attributes = {\r\n copyInstanceAttributes: function () {\r\n var a$ = this._instanceAttributes;\r\n for (var k in a$) {\r\n if (!this.hasAttribute(k)) {\r\n this.setAttribute(k, a$[k]);\r\n }\r\n }\r\n },\r\n // for each attribute on this, deserialize value to property as needed\r\n takeAttributes: function() {\r\n // if we have no publish lookup table, we have no attributes to take\r\n // TODO(sjmiles): ad hoc\r\n if (this._publishLC) {\r\n for (var i=0, a$=this.attributes, l=a$.length, a; (a=a$[i]) && i<l; i++) {\r\n this.attributeToProperty(a.name, a.value);\r\n }\r\n }\r\n },\r\n // if attribute 'name' is mapped to a property, deserialize\r\n // 'value' into that property\r\n attributeToProperty: function(name, value) {\r\n // try to match this attribute to a property (attributes are\r\n // all lower-case, so this is case-insensitive search)\r\n var name = this.propertyForAttribute(name);\r\n if (name) {\r\n // filter out 'mustached' values, these are to be\r\n // replaced with bound-data and are not yet values\r\n // themselves\r\n if (value && value.search(scope.bindPattern) >= 0) {\r\n return;\r\n }\r\n // get original value\r\n var currentValue = this[name];\r\n // deserialize Boolean or Number values from attribute\r\n var value = this.deserializeValue(value, currentValue);\r\n // only act if the value has changed\r\n if (value !== currentValue) {\r\n // install new value (has side-effects)\r\n this[name] = value;\r\n }\r\n }\r\n },\r\n // return the published property matching name, or undefined\r\n propertyForAttribute: function(name) {\r\n var match = this._publishLC && this._publishLC[name];\r\n //console.log('propertyForAttribute:', name, 'matches', match);\r\n return match;\r\n },\r\n // convert representation of 'stringValue' based on type of 'currentValue'\r\n deserializeValue: function(stringValue, currentValue) {\r\n return scope.deserializeValue(stringValue, currentValue);\r\n },\r\n serializeValue: function(value, inferredType) {\r\n if (inferredType === 'boolean') {\r\n return value ? '' : undefined;\r\n } else if (inferredType !== 'object' && inferredType !== 'function'\r\n && value !== undefined) {\r\n return value;\r\n }\r\n },\r\n reflectPropertyToAttribute: function(name) {\r\n var inferredType = typeof this[name];\r\n // try to intelligently serialize property value\r\n var serializedValue = this.serializeValue(this[name], inferredType);\r\n // boolean properties must reflect as boolean attributes\r\n if (serializedValue !== undefined) {\r\n this.setAttribute(name, serializedValue);\r\n // TODO(sorvell): we should remove attr for all properties\r\n // that have undefined serialization; however, we will need to\r\n // refine the attr reflection system to achieve this; pica, for example,\r\n // relies on having inferredType object properties not removed as\r\n // attrs.\r\n } else if (inferredType === 'boolean') {\r\n this.removeAttribute(name);\r\n }\r\n }\r\n };\r\n\r\n // exports\r\n\r\n scope.api.instance.attributes = attributes;\r\n\r\n})(Polymer);\r\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(scope) {\n\n // imports\n\n var log = window.logFlags || {};\n\n // magic words\n\n var OBSERVE_SUFFIX = 'Changed';\n\n // element api\n\n var empty = [];\n\n var properties = {\n createPropertyObserver: function() {\n var n$ = this._observeNames;\n if (n$ && n$.length) {\n var o = this._propertyObserver = new CompoundObserver(true);\n this.registerObservers([o]);\n // TODO(sorvell): may not be kosher to access the value here (this[n]);\n // previously we looked at the descriptor on the prototype\n // this doesn't work for inheritance and not for accessors without \n // a value property\n for (var i=0, l=n$.length, n; (i<l) && (n=n$[i]); i++) {\n o.addPath(this, n);\n this.observeArrayValue(n, this[n], null);\n }\n }\n },\n openPropertyObserver: function() {\n if (this._propertyObserver) {\n this._propertyObserver.open(this.notifyPropertyChanges, this);\n }\n },\n notifyPropertyChanges: function(newValues, oldValues, paths) {\n var name, method, called = {};\n for (var i in oldValues) {\n // note: paths is of form [object, path, object, path]\n name = paths[2 * i + 1];\n method = this.observe[name];\n if (method) {\n this.observeArrayValue(name, newValues[i], oldValues[i]);\n if (!called[method]) {\n called[method] = true;\n // observes the value if it is an array\n // TODO(sorvell): call method with the set of values it's expecting;\n // e.g. 'foo bar': 'invalidate' expects the new and old values for\n // foo and bar. Currently we give only one of these and then\n // deliver all the arguments.\n this.invokeMethod(method, [oldValues[i], newValues[i], arguments]);\n }\n }\n }\n },\n propertyChanged_: function(name, value, oldValue) {\n if (this.reflect[name]) {\n this.reflectPropertyToAttribute(name);\n }\n },\n observeArrayValue: function(name, value, old) {\n // we only care if there are registered side-effects\n var callbackName = this.observe[name];\n if (callbackName) {\n // if we are observing the previous value, stop\n if (Array.isArray(old)) {\n log.observe && console.log('[%s] observeArrayValue: unregister observer [%s]', this.localName, name);\n this.closeNamedObserver(name + '__array');\n }\n // if the new value is an array, being observing it\n if (Array.isArray(value)) {\n log.observe && console.log('[%s] observeArrayValue: register observer [%s]', this.localName, name, value);\n var observer = new ArrayObserver(value);\n observer.open(function(value, old) {\n this.invokeMethod(callbackName, [old]);\n }, this);\n this.registerNamedObserver(name + '__array', observer);\n }\n }\n },\n bindProperty: function(property, observable, oneTime) {\n if (oneTime) {\n this[property] = observable;\n return;\n }\n return bindProperties(this, property, observable);\n },\n invokeMethod: function(method, args) {\n var fn = this[method] || method;\n if (typeof fn === 'function') {\n fn.apply(this, args);\n }\n },\n registerObservers: function(observers) {\n this._observers = this._observers || [];\n this._observers.push(observers);\n },\n // observer array items are arrays of observers.\n closeObservers: function() {\n for (var i=0, l=this._observers.length; i<l; i++) {\n this.closeObserverArray(this._observers[i]);\n }\n this._observers = [];\n },\n closeObserverArray: function(observerArray) {\n for (var i=0, l=observerArray.length, o; i<l; i++) {\n o = observerArray[i];\n if (o && o.close) {\n o.close();\n }\n }\n },\n // bookkeeping observers for memory management\n registerNamedObserver: function(name, observer) {\n var o$ = this._namedObservers || (this._namedObservers = {});\n o$[name] = observer;\n },\n closeNamedObserver: function(name) {\n var o$ = this._namedObservers;\n if (o$ && o$[name]) {\n o$[name].close();\n o$[name] = null;\n return true;\n }\n },\n closeNamedObservers: function() {\n if (this._namedObservers) {\n var keys=Object.keys(this._namedObservers);\n for (var i=0, l=keys.length, k, o; (i < l) && (k=keys[i]); i++) {\n o = this._namedObservers[k];\n o.close();\n }\n this._namedObservers = {};\n }\n }\n };\n\n // property binding\n // bind a property in A to a path in B by converting A[property] to a\n // getter/setter pair that accesses B[...path...]\n function bindProperties(inA, inProperty, observable) {\n log.bind && console.log(LOG_BIND_PROPS, observable.path_, inPath, inA.localName, inProperty);\n // apply Polymer two-way reference binding\n return Observer.bindToInstance(inA, inProperty, observable, resolveBindingValue);\n }\n\n // capture A's value if B's value is null or undefined,\n // otherwise use B's value\n function resolveBindingValue(oldValue, value) {\n return (value === null || value === undefined) ? oldValue : value;\n }\n\n // logging\n var LOG_OBSERVE = '[%s] watching [%s]';\n var LOG_OBSERVED = '[%s#%s] watch: [%s] now [%s] was [%s]';\n var LOG_CHANGED = '[%s#%s] propertyChanged: [%s] now [%s] was [%s]';\n var LOG_BIND_PROPS = \"[%s]: bindProperties: [%s] to [%s].[%s]\";\n\n // exports\n\n scope.api.instance.properties = properties;\n\n})(Polymer);","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(scope) {\n\n // imports\n\n var log = window.logFlags || 0;\n\n // element api supporting mdv\n var mdv = {\n instanceTemplate: function(template) {\n // ensure a default bindingDelegate\n var syntax = this.syntax || (!template.bindingDelegate &&\n this.element.syntax);\n var dom = template.createInstance(this, syntax);\n this.registerObservers(dom.bindings_);\n return dom;\n },\n bind: function(name, observable, oneTime) {\n var property = this.propertyForAttribute(name);\n if (!property) {\n // TODO(sjmiles): this mixin method must use the special form\n // of `super` installed by `mixinMethod` in declaration/prototype.js\n return this.mixinSuper(arguments);\n } else {\n // use n-way Polymer binding\n var observer = this.bindProperty(property, observable, oneTime);\n // NOTE: reflecting binding information is typically required only for\n // tooling. It has a performance cost so it's opt-in in Node.bind.\n if (Platform.enableBindingsReflection && observer) {\n observer.path = observable.path_;\n this.bindings_ = this.bindings_ || {};\n this.bindings_[property] = observer;\n }\n if (this.reflect[property]) {\n this.reflectPropertyToAttribute(property);\n }\n return observer;\n }\n },\n bindFinished: function() {\n this.makeElementReady();\n },\n // TODO(sorvell): unbind/unbindAll has been removed, as public api, from\n // TemplateBinding. We still need to close/dispose of observers but perhaps\n // we should choose a more explicit name.\n asyncUnbindAll: function() {\n if (!this._unbound) {\n log.unbind && console.log('[%s] asyncUnbindAll', this.localName);\n this._unbindAllJob = this.job(this._unbindAllJob, this.unbindAll, 0);\n }\n },\n unbindAll: function() {\n if (!this._unbound) {\n this.closeObservers();\n this.closeNamedObservers();\n this._unbound = true;\n }\n },\n cancelUnbindAll: function() {\n if (this._unbound) {\n log.unbind && console.warn('[%s] already unbound, cannot cancel unbindAll', this.localName);\n return;\n }\n log.unbind && console.log('[%s] cancelUnbindAll', this.localName);\n if (this._unbindAllJob) {\n this._unbindAllJob = this._unbindAllJob.stop();\n }\n }\n };\n\n function unbindNodeTree(node) {\n forNodeTree(node, _nodeUnbindAll);\n }\n\n function _nodeUnbindAll(node) {\n node.unbindAll();\n }\n\n function forNodeTree(node, callback) {\n if (node) {\n callback(node);\n for (var child = node.firstChild; child; child = child.nextSibling) {\n forNodeTree(child, callback);\n }\n }\n }\n\n var mustachePattern = /\\{\\{([^{}]*)}}/;\n\n // exports\n\n scope.bindPattern = mustachePattern;\n scope.api.instance.mdv = mdv;\n\n})(Polymer);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(scope) {\n\n var base = {\n PolymerBase: true,\n job: function(job, callback, wait) {\n if (typeof job === 'string') {\n var n = '___' + job;\n this[n] = Polymer.job.call(this, this[n], callback, wait);\n } else {\n return Polymer.job.call(this, job, callback, wait);\n }\n },\n super: Polymer.super,\n // user entry point for element has had its createdCallback called\n created: function() {\n },\n // user entry point for element has shadowRoot and is ready for\n // api interaction\n ready: function() {\n },\n createdCallback: function() {\n if (this.templateInstance && this.templateInstance.model) {\n console.warn('Attributes on ' + this.localName + ' were data bound ' +\n 'prior to Polymer upgrading the element. This may result in ' +\n 'incorrect binding types.');\n }\n this.created();\n this.prepareElement();\n // TODO(sorvell): replace when ShadowDOMPolyfill issue is corrected\n // https://github.com/Polymer/ShadowDOM/issues/420\n if (!this.ownerDocument.isStagingDocument || window.ShadowDOMPolyfill) {\n this.makeElementReady();\n }\n },\n // system entry point, do not override\n prepareElement: function() {\n if (this._elementPrepared) {\n console.warn('Element already prepared', this.localName);\n return;\n }\n this._elementPrepared = true;\n // storage for shadowRoots info\n this.shadowRoots = {};\n // install property observers\n this.createPropertyObserver();\n // TODO (sorvell): temporarily open observer when created\n this.openPropertyObserver();\n // install boilerplate attributes\n this.copyInstanceAttributes();\n // process input attributes\n this.takeAttributes();\n // add event listeners\n this.addHostListeners();\n },\n makeElementReady: function() {\n if (this._readied) {\n return;\n }\n this._readied = true;\n // TODO(sorvell): We could create an entry point here\n // for the user to compute property values.\n // process declarative resources\n this.parseDeclarations(this.__proto__);\n // TODO(sorvell): CE polyfill uses unresolved attribute to simulate\n // :unresolved; remove this attribute to be compatible with native\n // CE.\n this.removeAttribute('unresolved');\n // user entry point\n this.ready();\n // TODO (sorvell): temporarily open observer when created\n // turn on property observation and take any initial changes\n //this.openPropertyObserver();\n },\n attachedCallback: function() {\n this.cancelUnbindAll();\n // invoke user action\n if (this.attached) {\n this.attached();\n }\n // TODO(sorvell): bc\n if (this.enteredView) {\n this.enteredView();\n }\n // NOTE: domReady can be used to access elements in dom (descendants, \n // ancestors, siblings) such that the developer is enured to upgrade\n // ordering. If the element definitions have loaded, domReady\n // can be used to access upgraded elements.\n if (!this.hasBeenAttached) {\n this.hasBeenAttached = true;\n if (this.domReady) {\n this.async('domReady');\n }\n }\n },\n detachedCallback: function() {\n if (!this.preventDispose) {\n this.asyncUnbindAll();\n }\n // invoke user action\n if (this.detached) {\n this.detached();\n }\n // TODO(sorvell): bc\n if (this.leftView) {\n this.leftView();\n }\n },\n // TODO(sorvell): bc\n enteredViewCallback: function() {\n this.attachedCallback();\n },\n // TODO(sorvell): bc\n leftViewCallback: function() {\n this.detachedCallback();\n },\n // TODO(sorvell): bc\n enteredDocumentCallback: function() {\n this.attachedCallback();\n },\n // TODO(sorvell): bc\n leftDocumentCallback: function() {\n this.detachedCallback();\n },\n // recursive ancestral <element> initialization, oldest first\n parseDeclarations: function(p) {\n if (p && p.element) {\n this.parseDeclarations(p.__proto__);\n p.parseDeclaration.call(this, p.element);\n }\n },\n // parse input <element> as needed, override for custom behavior\n parseDeclaration: function(elementElement) {\n var template = this.fetchTemplate(elementElement);\n if (template) {\n var root = this.shadowFromTemplate(template);\n this.shadowRoots[elementElement.name] = root;\n }\n },\n // return a shadow-root template (if desired), override for custom behavior\n fetchTemplate: function(elementElement) {\n return elementElement.querySelector('template');\n },\n // utility function that creates a shadow root from a <template>\n shadowFromTemplate: function(template) {\n if (template) {\n // make a shadow root\n var root = this.createShadowRoot();\n // stamp template\n // which includes parsing and applying MDV bindings before being \n // inserted (to avoid {{}} in attribute values)\n // e.g. to prevent <img src=\"images/{{icon}}\"> from generating a 404.\n var dom = this.instanceTemplate(template);\n // append to shadow dom\n root.appendChild(dom);\n // perform post-construction initialization tasks on shadow root\n this.shadowRootReady(root, template);\n // return the created shadow root\n return root;\n }\n },\n // utility function that stamps a <template> into light-dom\n lightFromTemplate: function(template, refNode) {\n if (template) {\n // TODO(sorvell): mark this element as a lightDOMController so that\n // event listeners on bound nodes inside it will be called on it.\n // Note, the expectation here is that events on all descendants \n // should be handled by this element.\n this.lightDomController = true;\n // stamp template\n // which includes parsing and applying MDV bindings before being \n // inserted (to avoid {{}} in attribute values)\n // e.g. to prevent <img src=\"images/{{icon}}\"> from generating a 404.\n var dom = this.instanceTemplate(template);\n // append to shadow dom\n if (refNode) {\n this.insertBefore(dom, refNode); \n } else {\n this.appendChild(dom);\n }\n // perform post-construction initialization tasks on ahem, light root\n this.shadowRootReady(this);\n // return the created shadow root\n return dom;\n }\n },\n shadowRootReady: function(root) {\n // locate nodes with id and store references to them in this.$ hash\n this.marshalNodeReferences(root);\n // set up polymer gestures\n PolymerGestures.register(root);\n },\n // locate nodes with id and store references to them in this.$ hash\n marshalNodeReferences: function(root) {\n // establish $ instance variable\n var $ = this.$ = this.$ || {};\n // populate $ from nodes with ID from the LOCAL tree\n if (root) {\n var n$ = root.querySelectorAll(\"[id]\");\n for (var i=0, l=n$.length, n; (i<l) && (n=n$[i]); i++) {\n $[n.id] = n;\n };\n }\n },\n attributeChangedCallback: function(name, oldValue) {\n // TODO(sjmiles): adhoc filter\n if (name !== 'class' && name !== 'style') {\n this.attributeToProperty(name, this.getAttribute(name));\n }\n if (this.attributeChanged) {\n this.attributeChanged.apply(this, arguments);\n }\n },\n onMutation: function(node, listener) {\n var observer = new MutationObserver(function(mutations) {\n listener.call(this, observer, mutations);\n observer.disconnect();\n }.bind(this));\n observer.observe(node, {childList: true, subtree: true});\n }\n };\n\n // true if object has own PolymerBase api\n function isBase(object) {\n return object.hasOwnProperty('PolymerBase') \n }\n\n // name a base constructor for dev tools\n\n function PolymerBase() {};\n PolymerBase.prototype = base;\n base.constructor = PolymerBase;\n \n // exports\n\n scope.Base = PolymerBase;\n scope.isBase = isBase;\n scope.api.instance.base = base;\n \n})(Polymer);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(scope) {\n\n // imports\n\n var log = window.logFlags || {};\n \n // magic words\n \n var STYLE_SCOPE_ATTRIBUTE = 'element';\n var STYLE_CONTROLLER_SCOPE = 'controller';\n \n var styles = {\n STYLE_SCOPE_ATTRIBUTE: STYLE_SCOPE_ATTRIBUTE,\n /**\n * Installs external stylesheets and <style> elements with the attribute \n * polymer-scope='controller' into the scope of element. This is intended\n * to be a called during custom element construction.\n */\n installControllerStyles: function() {\n // apply controller styles, but only if they are not yet applied\n var scope = this.findStyleScope();\n if (scope && !this.scopeHasNamedStyle(scope, this.localName)) {\n // allow inherited controller styles\n var proto = getPrototypeOf(this), cssText = '';\n while (proto && proto.element) {\n cssText += proto.element.cssTextForScope(STYLE_CONTROLLER_SCOPE);\n proto = getPrototypeOf(proto);\n }\n if (cssText) {\n this.installScopeCssText(cssText, scope);\n }\n }\n },\n installScopeStyle: function(style, name, scope) {\n var scope = scope || this.findStyleScope(), name = name || '';\n if (scope && !this.scopeHasNamedStyle(scope, this.localName + name)) {\n var cssText = '';\n if (style instanceof Array) {\n for (var i=0, l=style.length, s; (i<l) && (s=style[i]); i++) {\n cssText += s.textContent + '\\n\\n';\n }\n } else {\n cssText = style.textContent;\n }\n this.installScopeCssText(cssText, scope, name);\n }\n },\n installScopeCssText: function(cssText, scope, name) {\n scope = scope || this.findStyleScope();\n name = name || '';\n if (!scope) {\n return;\n }\n if (window.ShadowDOMPolyfill) {\n cssText = shimCssText(cssText, scope.host);\n }\n var style = this.element.cssTextToScopeStyle(cssText,\n STYLE_CONTROLLER_SCOPE);\n Polymer.applyStyleToScope(style, scope);\n // cache that this style has been applied\n scope._scopeStyles[this.localName + name] = true;\n },\n findStyleScope: function(node) {\n // find the shadow root that contains this element\n var n = node || this;\n while (n.parentNode) {\n n = n.parentNode;\n }\n return n;\n },\n scopeHasNamedStyle: function(scope, name) {\n scope._scopeStyles = scope._scopeStyles || {};\n return scope._scopeStyles[name];\n }\n };\n \n // NOTE: use raw prototype traversal so that we ensure correct traversal\n // on platforms where the protoype chain is simulated via __proto__ (IE10)\n function getPrototypeOf(prototype) {\n return prototype.__proto__;\n }\n\n function shimCssText(cssText, host) {\n var name = '', is = false;\n if (host) {\n name = host.localName;\n is = host.hasAttribute('is');\n }\n var selector = Platform.ShadowCSS.makeScopeSelector(name, is);\n return Platform.ShadowCSS.shimCssText(cssText, selector);\n }\n\n // exports\n\n scope.api.instance.styles = styles;\n \n})(Polymer);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(scope) {\n\n // imports\n\n var extend = scope.extend;\n var api = scope.api;\n\n // imperative implementation: Polymer()\n\n // specify an 'own' prototype for tag `name`\n function element(name, prototype) {\n if (arguments.length === 1 && typeof arguments[0] !== 'string') {\n prototype = name;\n var script = document._currentScript;\n name = script && script.parentNode && script.parentNode.getAttribute ?\n script.parentNode.getAttribute('name') : '';\n if (!name) {\n throw 'Element name could not be inferred.';\n }\n }\n if (getRegisteredPrototype[name]) {\n throw 'Already registered (Polymer) prototype for element ' + name;\n }\n // cache the prototype\n registerPrototype(name, prototype);\n // notify the registrar waiting for 'name', if any\n notifyPrototype(name);\n }\n\n // async prototype source\n\n function waitingForPrototype(name, client) {\n waitPrototype[name] = client;\n }\n\n var waitPrototype = {};\n\n function notifyPrototype(name) {\n if (waitPrototype[name]) {\n waitPrototype[name].registerWhenReady();\n delete waitPrototype[name];\n }\n }\n\n // utility and bookkeeping\n\n // maps tag names to prototypes, as registered with\n // Polymer. Prototypes associated with a tag name\n // using document.registerElement are available from\n // HTMLElement.getPrototypeForTag().\n // If an element was fully registered by Polymer, then\n // Polymer.getRegisteredPrototype(name) === \n // HTMLElement.getPrototypeForTag(name)\n\n var prototypesByName = {};\n\n function registerPrototype(name, prototype) {\n return prototypesByName[name] = prototype || {};\n }\n\n function getRegisteredPrototype(name) {\n return prototypesByName[name];\n }\n\n // exports\n\n scope.getRegisteredPrototype = getRegisteredPrototype;\n scope.waitingForPrototype = waitingForPrototype;\n\n // namespace shenanigans so we can expose our scope on the registration \n // function\n\n // make window.Polymer reference `element()`\n\n window.Polymer = element;\n\n // TODO(sjmiles): find a way to do this that is less terrible\n // copy window.Polymer properties onto `element()`\n\n extend(Polymer, scope);\n\n // Under the HTMLImports polyfill, scripts in the main document\n // do not block on imports; we want to allow calls to Polymer in the main\n // document. Platform collects those calls until we can process them, which\n // we do here.\n\n var declarations = Platform.deliverDeclarations();\n if (declarations) {\n for (var i=0, l=declarations.length, d; (i<l) && (d=declarations[i]); i++) {\n element.apply(null, d);\n }\n }\n\n})(Polymer);\n","/* \n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n(function(scope) {\n\nvar path = {\n resolveElementPaths: function(node) {\n Platform.urlResolver.resolveDom(node);\n },\n addResolvePathApi: function() {\n // let assetpath attribute modify the resolve path\n var assetPath = this.getAttribute('assetpath') || '';\n var root = new URL(assetPath, this.ownerDocument.baseURI);\n this.prototype.resolvePath = function(urlPath, base) {\n var u = new URL(urlPath, base || root);\n return u.href;\n };\n }\n};\n\n// exports\nscope.api.declaration.path = path;\n\n})(Polymer);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(scope) {\n\n // imports\n\n var log = window.logFlags || {};\n var api = scope.api.instance.styles;\n var STYLE_SCOPE_ATTRIBUTE = api.STYLE_SCOPE_ATTRIBUTE;\n\n // magic words\n\n var STYLE_SELECTOR = 'style';\n var STYLE_LOADABLE_MATCH = '@import';\n var SHEET_SELECTOR = 'link[rel=stylesheet]';\n var STYLE_GLOBAL_SCOPE = 'global';\n var SCOPE_ATTR = 'polymer-scope';\n\n var styles = {\n // returns true if resources are loading\n loadStyles: function(callback) {\n var content = this.templateContent();\n if (content) {\n this.convertSheetsToStyles(content);\n }\n var styles = this.findLoadableStyles(content);\n if (styles.length) {\n Platform.styleResolver.loadStyles(styles, callback);\n } else if (callback) {\n callback();\n }\n },\n convertSheetsToStyles: function(root) {\n var s$ = root.querySelectorAll(SHEET_SELECTOR);\n for (var i=0, l=s$.length, s, c; (i<l) && (s=s$[i]); i++) {\n c = createStyleElement(importRuleForSheet(s, this.ownerDocument.baseURI),\n this.ownerDocument);\n this.copySheetAttributes(c, s);\n s.parentNode.replaceChild(c, s);\n }\n },\n copySheetAttributes: function(style, link) {\n for (var i=0, a$=link.attributes, l=a$.length, a; (a=a$[i]) && i<l; i++) {\n if (a.name !== 'rel' && a.name !== 'href') {\n style.setAttribute(a.name, a.value);\n }\n }\n },\n findLoadableStyles: function(root) {\n var loadables = [];\n if (root) {\n var s$ = root.querySelectorAll(STYLE_SELECTOR);\n for (var i=0, l=s$.length, s; (i<l) && (s=s$[i]); i++) {\n if (s.textContent.match(STYLE_LOADABLE_MATCH)) {\n loadables.push(s);\n }\n }\n }\n return loadables;\n },\n /**\n * Install external stylesheets loaded in <polymer-element> elements into the \n * element's template.\n * @param elementElement The <element> element to style.\n */\n installSheets: function() {\n this.cacheSheets();\n this.cacheStyles();\n this.installLocalSheets();\n this.installGlobalStyles();\n },\n /**\n * Remove all sheets from element and store for later use.\n */\n cacheSheets: function() {\n this.sheets = this.findNodes(SHEET_SELECTOR);\n this.sheets.forEach(function(s) {\n if (s.parentNode) {\n s.parentNode.removeChild(s);\n }\n });\n },\n cacheStyles: function() {\n this.styles = this.findNodes(STYLE_SELECTOR + '[' + SCOPE_ATTR + ']');\n this.styles.forEach(function(s) {\n if (s.parentNode) {\n s.parentNode.removeChild(s);\n }\n });\n },\n /**\n * Takes external stylesheets loaded in an <element> element and moves\n * their content into a <style> element inside the <element>'s template.\n * The sheet is then removed from the <element>. This is done only so \n * that if the element is loaded in the main document, the sheet does\n * not become active.\n * Note, ignores sheets with the attribute 'polymer-scope'.\n * @param elementElement The <element> element to style.\n */\n installLocalSheets: function () {\n var sheets = this.sheets.filter(function(s) {\n return !s.hasAttribute(SCOPE_ATTR);\n });\n var content = this.templateContent();\n if (content) {\n var cssText = '';\n sheets.forEach(function(sheet) {\n cssText += cssTextFromSheet(sheet) + '\\n';\n });\n if (cssText) {\n var style = createStyleElement(cssText, this.ownerDocument);\n content.insertBefore(style, content.firstChild);\n }\n }\n },\n findNodes: function(selector, matcher) {\n var nodes = this.querySelectorAll(selector).array();\n var content = this.templateContent();\n if (content) {\n var templateNodes = content.querySelectorAll(selector).array();\n nodes = nodes.concat(templateNodes);\n }\n return matcher ? nodes.filter(matcher) : nodes;\n },\n /**\n * Promotes external stylesheets and <style> elements with the attribute \n * polymer-scope='global' into global scope.\n * This is particularly useful for defining @keyframe rules which \n * currently do not function in scoped or shadow style elements.\n * (See wkb.ug/72462)\n * @param elementElement The <element> element to style.\n */\n // TODO(sorvell): remove when wkb.ug/72462 is addressed.\n installGlobalStyles: function() {\n var style = this.styleForScope(STYLE_GLOBAL_SCOPE);\n applyStyleToScope(style, document.head);\n },\n cssTextForScope: function(scopeDescriptor) {\n var cssText = '';\n // handle stylesheets\n var selector = '[' + SCOPE_ATTR + '=' + scopeDescriptor + ']';\n var matcher = function(s) {\n return matchesSelector(s, selector);\n };\n var sheets = this.sheets.filter(matcher);\n sheets.forEach(function(sheet) {\n cssText += cssTextFromSheet(sheet) + '\\n\\n';\n });\n // handle cached style elements\n var styles = this.styles.filter(matcher);\n styles.forEach(function(style) {\n cssText += style.textContent + '\\n\\n';\n });\n return cssText;\n },\n styleForScope: function(scopeDescriptor) {\n var cssText = this.cssTextForScope(scopeDescriptor);\n return this.cssTextToScopeStyle(cssText, scopeDescriptor);\n },\n cssTextToScopeStyle: function(cssText, scopeDescriptor) {\n if (cssText) {\n var style = createStyleElement(cssText);\n style.setAttribute(STYLE_SCOPE_ATTRIBUTE, this.getAttribute('name') +\n '-' + scopeDescriptor);\n return style;\n }\n }\n };\n\n function importRuleForSheet(sheet, baseUrl) {\n var href = new URL(sheet.getAttribute('href'), baseUrl).href;\n return '@import \\'' + href + '\\';';\n }\n\n function applyStyleToScope(style, scope) {\n if (style) {\n if (scope === document) {\n scope = document.head;\n }\n if (window.ShadowDOMPolyfill) {\n scope = document.head;\n }\n // TODO(sorvell): necessary for IE\n // see https://connect.microsoft.com/IE/feedback/details/790212/\n // cloning-a-style-element-and-adding-to-document-produces\n // -unexpected-result#details\n // var clone = style.cloneNode(true);\n var clone = createStyleElement(style.textContent);\n var attr = style.getAttribute(STYLE_SCOPE_ATTRIBUTE);\n if (attr) {\n clone.setAttribute(STYLE_SCOPE_ATTRIBUTE, attr);\n }\n // TODO(sorvell): probably too brittle; try to figure out \n // where to put the element.\n var refNode = scope.firstElementChild;\n if (scope === document.head) {\n var selector = 'style[' + STYLE_SCOPE_ATTRIBUTE + ']';\n var s$ = document.head.querySelectorAll(selector);\n if (s$.length) {\n refNode = s$[s$.length-1].nextElementSibling;\n }\n }\n scope.insertBefore(clone, refNode);\n }\n }\n\n function createStyleElement(cssText, scope) {\n scope = scope || document;\n scope = scope.createElement ? scope : scope.ownerDocument;\n var style = scope.createElement('style');\n style.textContent = cssText;\n return style;\n }\n\n function cssTextFromSheet(sheet) {\n return (sheet && sheet.__resource) || '';\n }\n\n function matchesSelector(node, inSelector) {\n if (matches) {\n return matches.call(node, inSelector);\n }\n }\n var p = HTMLElement.prototype;\n var matches = p.matches || p.matchesSelector || p.webkitMatchesSelector \n || p.mozMatchesSelector;\n \n // exports\n\n scope.api.declaration.styles = styles;\n scope.applyStyleToScope = applyStyleToScope;\n \n})(Polymer);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n(function(scope) {\n\n // imports\n\n var log = window.logFlags || {};\n var api = scope.api.instance.events;\n var EVENT_PREFIX = api.EVENT_PREFIX;\n // polymer-element declarative api: events feature\n\n var events = { \n parseHostEvents: function() {\n // our delegates map\n var delegates = this.prototype.eventDelegates;\n // extract data from attributes into delegates\n this.addAttributeDelegates(delegates);\n },\n addAttributeDelegates: function(delegates) {\n // for each attribute\n for (var i=0, a; a=this.attributes[i]; i++) {\n // does it have magic marker identifying it as an event delegate?\n if (this.hasEventPrefix(a.name)) {\n // if so, add the info to delegates\n delegates[this.removeEventPrefix(a.name)] = a.value.replace('{{', '')\n .replace('}}', '').trim();\n }\n }\n },\n // starts with 'on-'\n hasEventPrefix: function (n) {\n return n && (n[0] === 'o') && (n[1] === 'n') && (n[2] === '-');\n },\n removeEventPrefix: function(n) {\n return n.slice(prefixLength);\n }\n };\n\n var prefixLength = EVENT_PREFIX.length;\n\n // exports\n scope.api.declaration.events = events;\n\n})(Polymer);","/*\r\n * Copyright 2013 The Polymer Authors. All rights reserved.\r\n * Use of this source code is governed by a BSD-style\r\n * license that can be found in the LICENSE file.\r\n */\r\n(function(scope) {\r\n\r\n // element api\r\n\r\n var properties = {\r\n inferObservers: function(prototype) {\r\n // called before prototype.observe is chained to inherited object\r\n var observe = prototype.observe, property;\r\n for (var n in prototype) {\r\n if (n.slice(-7) === 'Changed') {\r\n if (!observe) {\r\n observe = (prototype.observe = {});\r\n }\r\n property = n.slice(0, -7)\r\n observe[property] = observe[property] || n;\r\n }\r\n }\r\n },\r\n explodeObservers: function(prototype) {\r\n // called before prototype.observe is chained to inherited object\r\n var o = prototype.observe;\r\n if (o) {\r\n var exploded = {};\r\n for (var n in o) {\r\n var names = n.split(' ');\r\n for (var i=0, ni; ni=names[i]; i++) {\r\n exploded[ni] = o[n];\r\n }\r\n }\r\n prototype.observe = exploded;\r\n }\r\n },\r\n optimizePropertyMaps: function(prototype) {\r\n if (prototype.observe) {\r\n // construct name list\r\n var a = prototype._observeNames = [];\r\n for (var n in prototype.observe) {\r\n var names = n.split(' ');\r\n for (var i=0, ni; ni=names[i]; i++) {\r\n a.push(ni);\r\n }\r\n }\r\n }\r\n if (prototype.publish) {\r\n // construct name list\r\n var a = prototype._publishNames = [];\r\n for (var n in prototype.publish) {\r\n a.push(n);\r\n }\r\n }\r\n },\r\n publishProperties: function(prototype, base) {\r\n // if we have any properties to publish\r\n var publish = prototype.publish;\r\n if (publish) {\r\n // transcribe `publish` entries onto own prototype\r\n this.requireProperties(publish, prototype, base);\r\n // construct map of lower-cased property names\r\n prototype._publishLC = this.lowerCaseMap(publish);\r\n }\r\n },\r\n requireProperties: function(properties, prototype, base) {\r\n // reflected properties\r\n prototype.reflect = prototype.reflect || {};\r\n // ensure a prototype value for each property\r\n for (var n in properties) {\r\n if (this.valueReflects(properties[n])) {\r\n prototype.reflect[n] = true;\r\n }\r\n if (prototype[n] === undefined && base[n] === undefined) {\r\n prototype[n] = this.valueForProperty(properties[n]); \r\n }\r\n }\r\n },\r\n valueForProperty: function(propertyValue) {\r\n return (typeof propertyValue === 'object' && propertyValue !== null) ? \r\n (propertyValue.value !== undefined ? propertyValue.value : null) :\r\n propertyValue;\r\n },\r\n valueReflects: function(propertyValue) {\r\n return (typeof propertyValue === 'object' && propertyValue !== null && \r\n propertyValue.reflect);\r\n },\r\n lowerCaseMap: function(properties) {\r\n var map = {};\r\n for (var n in properties) {\r\n map[n.toLowerCase()] = n;\r\n }\r\n return map;\r\n },\r\n createPropertyAccessors: function(prototype) {\r\n var n$ = prototype._publishNames;\r\n if (n$ && n$.length) {\r\n for (var i=0, l=n$.length, n, fn; (i<l) && (n=n$[i]); i++) {\r\n Observer.createBindablePrototypeAccessor(prototype, n);\r\n }\r\n }\r\n }\r\n };\r\n\r\n // exports\r\n\r\n scope.api.declaration.properties = properties;\r\n\r\n})(Polymer);\r\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(scope) {\n\n // magic words\n\n var ATTRIBUTES_ATTRIBUTE = 'attributes';\n var ATTRIBUTES_REGEX = /\\s|,/;\n\n // attributes api\n\n var attributes = {\n inheritAttributesObjects: function(prototype) {\n // chain our lower-cased publish map to the inherited version\n this.inheritObject(prototype, 'publishLC');\n // chain our instance attributes map to the inherited version\n this.inheritObject(prototype, '_instanceAttributes');\n },\n publishAttributes: function(prototype, base) {\n // merge names from 'attributes' attribute\n var attributes = this.getAttribute(ATTRIBUTES_ATTRIBUTE);\n if (attributes) {\n // get properties to publish\n var publish = prototype.publish || (prototype.publish = {});\n // names='a b c' or names='a,b,c'\n var names = attributes.split(ATTRIBUTES_REGEX);\n // record each name for publishing\n for (var i=0, l=names.length, n; i<l; i++) {\n // remove excess ws\n n = names[i].trim();\n // do not override explicit entries\n if (n && publish[n] === undefined && base[n] === undefined) {\n publish[n] = null;\n }\n }\n }\n },\n // record clonable attributes from <element>\n accumulateInstanceAttributes: function() {\n // inherit instance attributes\n var clonable = this.prototype._instanceAttributes;\n // merge attributes from element\n var a$ = this.attributes;\n for (var i=0, l=a$.length, a; (i<l) && (a=a$[i]); i++) { \n if (this.isInstanceAttribute(a.name)) {\n clonable[a.name] = a.value;\n }\n }\n },\n isInstanceAttribute: function(name) {\n return !this.blackList[name] && name.slice(0,3) !== 'on-';\n },\n // do not clone these attributes onto instances\n blackList: {\n name: 1,\n 'extends': 1,\n constructor: 1,\n noscript: 1,\n assetpath: 1,\n 'cache-csstext': 1\n }\n };\n\n // add ATTRIBUTES_ATTRIBUTE to the blacklist\n attributes.blackList[ATTRIBUTES_ATTRIBUTE] = 1;\n\n // exports\n\n scope.api.declaration.attributes = attributes;\n\n})(Polymer);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(scope) {\n\n // imports\n\n var syntax = new PolymerExpressions();\n syntax.resolveEventHandler = function(model, path, node) {\n var ctlr = findEventController(node);\n if (ctlr) {\n var fn = path.getValueFrom(ctlr);\n if (fn) {\n return fn.bind(ctlr);\n }\n }\n };\n\n // An event controller is the host element for the shadowRoot in which \n // the node exists, or the first ancestor with a 'lightDomController'\n // property.\n function findEventController(node) {\n while (node.parentNode) {\n if (node.lightDomController) {\n return node;\n }\n node = node.parentNode;\n }\n return node.host;\n }\n\n // declaration api supporting mdv\n var mdv = {\n syntax: syntax,\n fetchTemplate: function() {\n return this.querySelector('template');\n },\n templateContent: function() {\n var template = this.fetchTemplate();\n return template && templateContent(template);\n },\n installBindingDelegate: function(template) {\n if (template) {\n template.bindingDelegate = this.syntax;\n }\n }\n };\n\n // exports\n scope.api.declaration.mdv = mdv;\n\n})(Polymer);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(scope) {\n\n // imports\n \n var api = scope.api;\n var isBase = scope.isBase;\n var extend = scope.extend;\n\n // prototype api\n\n var prototype = {\n\n register: function(name, extendeeName) {\n // build prototype combining extendee, Polymer base, and named api\n this.buildPrototype(name, extendeeName);\n // register our custom element with the platform\n this.registerPrototype(name, extendeeName);\n // reference constructor in a global named by 'constructor' attribute\n this.publishConstructor();\n },\n\n buildPrototype: function(name, extendeeName) {\n // get our custom prototype (before chaining)\n var extension = scope.getRegisteredPrototype(name);\n // get basal prototype\n var base = this.generateBasePrototype(extendeeName);\n // implement declarative features\n this.desugarBeforeChaining(extension, base);\n // join prototypes\n this.prototype = this.chainPrototypes(extension, base);\n // more declarative features\n this.desugarAfterChaining(name, extendeeName);\n },\n\n desugarBeforeChaining: function(prototype, base) {\n // back reference declaration element\n // TODO(sjmiles): replace `element` with `elementElement` or `declaration`\n prototype.element = this;\n // transcribe `attributes` declarations onto own prototype's `publish`\n this.publishAttributes(prototype, base);\n // `publish` properties to the prototype and to attribute watch\n this.publishProperties(prototype, base);\n // infer observers for `observe` list based on method names\n this.inferObservers(prototype);\n // desugar compound observer syntax, e.g. 'a b c' \n this.explodeObservers(prototype);\n },\n\n chainPrototypes: function(prototype, base) {\n // chain various meta-data objects to inherited versions\n this.inheritMetaData(prototype, base);\n // chain custom api to inherited\n var chained = this.chainObject(prototype, base);\n // x-platform fixup\n ensurePrototypeTraversal(chained);\n return chained;\n },\n\n inheritMetaData: function(prototype, base) {\n // chain observe object to inherited\n this.inheritObject('observe', prototype, base);\n // chain publish object to inherited\n this.inheritObject('publish', prototype, base);\n // chain reflect object to inherited\n this.inheritObject('reflect', prototype, base);\n // chain our lower-cased publish map to the inherited version\n this.inheritObject('_publishLC', prototype, base);\n // chain our instance attributes map to the inherited version\n this.inheritObject('_instanceAttributes', prototype, base);\n // chain our event delegates map to the inherited version\n this.inheritObject('eventDelegates', prototype, base);\n },\n\n // implement various declarative features\n desugarAfterChaining: function(name, extendee) {\n // build side-chained lists to optimize iterations\n this.optimizePropertyMaps(this.prototype);\n this.createPropertyAccessors(this.prototype);\n // install mdv delegate on template\n this.installBindingDelegate(this.fetchTemplate());\n // install external stylesheets as if they are inline\n this.installSheets();\n // adjust any paths in dom from imports\n this.resolveElementPaths(this);\n // compile list of attributes to copy to instances\n this.accumulateInstanceAttributes();\n // parse on-* delegates declared on `this` element\n this.parseHostEvents();\n //\n // install a helper method this.resolvePath to aid in \n // setting resource urls. e.g.\n // this.$.image.src = this.resolvePath('images/foo.png')\n this.addResolvePathApi();\n // under ShadowDOMPolyfill, transforms to approximate missing CSS features\n if (window.ShadowDOMPolyfill) {\n Platform.ShadowCSS.shimStyling(this.templateContent(), name, extendee);\n }\n // allow custom element access to the declarative context\n if (this.prototype.registerCallback) {\n this.prototype.registerCallback(this);\n }\n },\n\n // if a named constructor is requested in element, map a reference\n // to the constructor to the given symbol\n publishConstructor: function() {\n var symbol = this.getAttribute('constructor');\n if (symbol) {\n window[symbol] = this.ctor;\n }\n },\n\n // build prototype combining extendee, Polymer base, and named api\n generateBasePrototype: function(extnds) {\n var prototype = this.findBasePrototype(extnds);\n if (!prototype) {\n // create a prototype based on tag-name extension\n var prototype = HTMLElement.getPrototypeForTag(extnds);\n // insert base api in inheritance chain (if needed)\n prototype = this.ensureBaseApi(prototype);\n // memoize this base\n memoizedBases[extnds] = prototype;\n }\n return prototype;\n },\n\n findBasePrototype: function(name) {\n return memoizedBases[name];\n },\n\n // install Polymer instance api into prototype chain, as needed \n ensureBaseApi: function(prototype) {\n if (prototype.PolymerBase) {\n return prototype;\n }\n var extended = Object.create(prototype);\n // we need a unique copy of base api for each base prototype\n // therefore we 'extend' here instead of simply chaining\n api.publish(api.instance, extended);\n // TODO(sjmiles): sharing methods across prototype chains is\n // not supported by 'super' implementation which optimizes\n // by memoizing prototype relationships.\n // Probably we should have a version of 'extend' that is \n // share-aware: it could study the text of each function,\n // look for usage of 'super', and wrap those functions in\n // closures.\n // As of now, there is only one problematic method, so \n // we just patch it manually.\n // To avoid re-entrancy problems, the special super method\n // installed is called `mixinSuper` and the mixin method\n // must use this method instead of the default `super`.\n this.mixinMethod(extended, prototype, api.instance.mdv, 'bind');\n // return buffed-up prototype\n return extended;\n },\n\n mixinMethod: function(extended, prototype, api, name) {\n var $super = function(args) {\n return prototype[name].apply(this, args);\n };\n extended[name] = function() {\n this.mixinSuper = $super;\n return api[name].apply(this, arguments);\n }\n },\n\n // ensure prototype[name] inherits from a prototype.prototype[name]\n inheritObject: function(name, prototype, base) {\n // require an object\n var source = prototype[name] || {};\n // chain inherited properties onto a new object\n prototype[name] = this.chainObject(source, base[name]);\n },\n\n // register 'prototype' to custom element 'name', store constructor \n registerPrototype: function(name, extendee) { \n var info = {\n prototype: this.prototype\n }\n // native element must be specified in extends\n var typeExtension = this.findTypeExtension(extendee);\n if (typeExtension) {\n info.extends = typeExtension;\n }\n // register the prototype with HTMLElement for name lookup\n HTMLElement.register(name, this.prototype);\n // register the custom type\n this.ctor = document.registerElement(name, info);\n },\n\n findTypeExtension: function(name) {\n if (name && name.indexOf('-') < 0) {\n return name;\n } else {\n var p = this.findBasePrototype(name);\n if (p.element) {\n return this.findTypeExtension(p.element.extends);\n }\n }\n }\n\n };\n\n // memoize base prototypes\n var memoizedBases = {};\n\n // implementation of 'chainObject' depends on support for __proto__\n if (Object.__proto__) {\n prototype.chainObject = function(object, inherited) {\n if (object && inherited && object !== inherited) {\n object.__proto__ = inherited;\n }\n return object;\n }\n } else {\n prototype.chainObject = function(object, inherited) {\n if (object && inherited && object !== inherited) {\n var chained = Object.create(inherited);\n object = extend(chained, object);\n }\n return object;\n }\n }\n\n // On platforms that do not support __proto__ (versions of IE), the prototype\n // chain of a custom element is simulated via installation of __proto__.\n // Although custom elements manages this, we install it here so it's\n // available during desugaring.\n function ensurePrototypeTraversal(prototype) {\n if (!Object.__proto__) {\n var ancestor = Object.getPrototypeOf(prototype);\n prototype.__proto__ = ancestor;\n if (isBase(ancestor)) {\n ancestor.__proto__ = Object.getPrototypeOf(ancestor);\n }\n }\n }\n\n // exports\n\n api.declaration.prototype = prototype;\n\n})(Polymer);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(scope) {\n\n var queue = {\n // tell the queue to wait for an element to be ready\n wait: function(element, check, go) {\n if (this.indexOf(element) === -1) {\n this.add(element);\n element.__check = check;\n element.__go = go;\n }\n return (this.indexOf(element) !== 0);\n },\n add: function(element) {\n //console.log('queueing', element.name);\n queueForElement(element).push(element);\n },\n indexOf: function(element) {\n var i = queueForElement(element).indexOf(element);\n if (i >= 0 && document.contains(element)) {\n i += (HTMLImports.useNative || HTMLImports.ready) ? \n importQueue.length : 1e9;\n }\n return i; \n },\n // tell the queue an element is ready to be registered\n go: function(element) {\n var readied = this.remove(element);\n if (readied) {\n readied.__go.call(readied);\n readied.__check = readied.__go = null;\n this.check();\n }\n },\n remove: function(element) {\n var i = this.indexOf(element);\n if (i !== 0) {\n //console.warn('queue order wrong', i);\n return;\n }\n return queueForElement(element).shift();\n },\n check: function() {\n // next\n var element = this.nextElement();\n if (element) {\n element.__check.call(element);\n }\n if (this.canReady()) {\n this.ready();\n return true;\n }\n },\n nextElement: function() {\n return nextQueued();\n },\n canReady: function() {\n return !this.waitToReady && this.isEmpty();\n },\n isEmpty: function() {\n return !importQueue.length && !mainQueue.length;\n },\n ready: function() {\n // TODO(sorvell): As an optimization, turn off CE polyfill upgrading\n // while registering. This way we avoid having to upgrade each document\n // piecemeal per registration and can instead register all elements\n // and upgrade once in a batch. Without this optimization, upgrade time\n // degrades significantly when SD polyfill is used. This is mainly because\n // querying the document tree for elements is slow under the SD polyfill.\n if (CustomElements.ready === false) {\n CustomElements.upgradeDocumentTree(document);\n CustomElements.ready = true;\n }\n if (readyCallbacks) {\n var fn;\n while (readyCallbacks.length) {\n fn = readyCallbacks.shift();\n fn();\n }\n }\n },\n addReadyCallback: function(callback) {\n if (callback) {\n readyCallbacks.push(callback);\n }\n },\n waitToReady: true\n };\n\n var importQueue = [];\n var mainQueue = [];\n var readyCallbacks = [];\n\n function queueForElement(element) {\n return document.contains(element) ? mainQueue : importQueue;\n }\n\n function nextQueued() {\n return importQueue.length ? importQueue[0] : mainQueue[0];\n }\n\n var polymerReadied = false; \n\n document.addEventListener('WebComponentsReady', function() {\n CustomElements.ready = false;\n });\n \n function whenPolymerReady(callback) {\n queue.waitToReady = true;\n CustomElements.ready = false;\n HTMLImports.whenImportsReady(function() {\n queue.addReadyCallback(callback);\n queue.waitToReady = false;\n queue.check();\n });\n }\n\n // exports\n scope.queue = queue;\n scope.whenPolymerReady = whenPolymerReady;\n})(Polymer);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(scope) {\n\n var whenPolymerReady = scope.whenPolymerReady;\n\n function importElements(elementOrFragment, callback) {\n if (elementOrFragment) {\n document.head.appendChild(elementOrFragment);\n whenPolymerReady(callback);\n } else if (callback) {\n callback();\n }\n }\n\n function importUrls(urls, callback) {\n if (urls && urls.length) {\n var frag = document.createDocumentFragment();\n for (var i=0, l=urls.length, url, link; (i<l) && (url=urls[i]); i++) {\n link = document.createElement('link');\n link.rel = 'import';\n link.href = url;\n frag.appendChild(link);\n }\n importElements(frag, callback);\n } else if (callback) {\n callback();\n }\n }\n\n // exports\n scope.import = importUrls;\n scope.importElements = importElements;\n\n})(Polymer);\n","/*\n * Copyright 2013 The Polymer Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n(function(scope) {\n\n // imports\n\n var extend = scope.extend;\n var api = scope.api;\n var queue = scope.queue;\n var whenPolymerReady = scope.whenPolymerReady;\n var getRegisteredPrototype = scope.getRegisteredPrototype;\n var waitingForPrototype = scope.waitingForPrototype;\n\n // declarative implementation: <polymer-element>\n\n var prototype = extend(Object.create(HTMLElement.prototype), {\n\n createdCallback: function() {\n if (this.getAttribute('name')) {\n this.init();\n }\n },\n\n init: function() {\n // fetch declared values\n this.name = this.getAttribute('name');\n this.extends = this.getAttribute('extends');\n // initiate any async resource fetches\n this.loadResources();\n // register when all constraints are met\n this.registerWhenReady();\n },\n\n registerWhenReady: function() {\n if (this.registered\n || this.waitingForPrototype(this.name)\n || this.waitingForQueue()\n || this.waitingForResources()) {\n return;\n }\n // TODO(sorvell): ends up calling '_register' by virtue\n // of `waitingForQueue` (see below)\n queue.go(this);\n },\n\n // TODO(sorvell): refactor, this method is private-ish, but it's being\n // called by the queue object.\n _register: function() {\n //console.log('registering', this.name);\n //console.group('registering', this.name);\n // warn if extending from a custom element not registered via Polymer\n if (isCustomTag(this.extends) && !isRegistered(this.extends)) {\n console.warn('%s is attempting to extend %s, an unregistered element ' +\n 'or one that was not registered with Polymer.', this.name,\n this.extends);\n }\n this.register(this.name, this.extends);\n this.registered = true;\n //console.groupEnd();\n },\n\n waitingForPrototype: function(name) {\n if (!getRegisteredPrototype(name)) {\n // then wait for a prototype\n waitingForPrototype(name, this);\n // emulate script if user is not supplying one\n this.handleNoScript(name);\n // prototype not ready yet\n return true;\n }\n },\n\n handleNoScript: function(name) {\n // if explicitly marked as 'noscript'\n if (this.hasAttribute('noscript') && !this.noscript) {\n this.noscript = true;\n // TODO(sorvell): CustomElements polyfill awareness:\n // noscript elements should upgrade in logical order\n // script injection ensures this under native custom elements;\n // under imports + ce polyfills, scripts run before upgrades.\n // dependencies should be ready at upgrade time so register\n // prototype at this time.\n if (window.CustomElements && !CustomElements.useNative) {\n Polymer(name);\n } else {\n var script = document.createElement('script');\n script.textContent = 'Polymer(\\'' + name + '\\');';\n this.appendChild(script);\n }\n }\n },\n\n waitingForResources: function() {\n return this._needsResources;\n },\n\n // NOTE: Elements must be queued in proper order for inheritance/composition\n // dependency resolution. Previously this was enforced for inheritance,\n // and by rule for composition. It's now entirely by rule.\n waitingForQueue: function() {\n return queue.wait(this, this.registerWhenReady, this._register);\n },\n\n loadResources: function() {\n this._needsResources = true;\n this.loadStyles(function() {\n this._needsResources = false;\n this.registerWhenReady();\n }.bind(this));\n }\n\n });\n\n // semi-pluggable APIs \n\n // TODO(sjmiles): should be fully pluggable (aka decoupled, currently\n // the various plugins are allowed to depend on each other directly)\n api.publish(api.declaration, prototype);\n\n // utility and bookkeeping\n\n function isRegistered(name) {\n return Boolean(HTMLElement.getPrototypeForTag(name));\n }\n\n function isCustomTag(name) {\n return (name && name.indexOf('-') >= 0);\n }\n\n // boot tasks\n\n whenPolymerReady(function() {\n document.body.removeAttribute('unresolved');\n document.dispatchEvent(\n new CustomEvent('polymer-ready', {bubbles: true})\n );\n });\n\n // register polymer-element with document\n\n document.registerElement('polymer-element', {prototype: prototype});\n\n})(Polymer);\n"]}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/pipe-viewers/builtin/README b/examples/pipetobrowser/browser/pipe-viewers/builtin/README
deleted file mode 100644
index 15846d1..0000000
--- a/examples/pipetobrowser/browser/pipe-viewers/builtin/README
+++ /dev/null
@@ -1,7 +0,0 @@
-A pipe viewer plugin is a piece of code that can format/play/display an stream of bytes.
-
-Each pipe viewer plugin must do a default export of a class that extends the PipeViewer interface.
-
-"builtin" folder contains pipe viewers that come built-in with PipeToBrowser application.
-
-Plugin loader expects the folder and file name to match the viewer's name.
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/pipe-viewers/builtin/console/component.css b/examples/pipetobrowser/browser/pipe-viewers/builtin/console/component.css
new file mode 100644
index 0000000..2091d34
--- /dev/null
+++ b/examples/pipetobrowser/browser/pipe-viewers/builtin/console/component.css
@@ -0,0 +1,17 @@
+:host {
+ background-color: #000000;
+ height: 100%;
+ display: block;
+ overflow: auto;
+}
+
+pre {
+ margin: 0;
+ padding: 0.5em;
+
+ font-family: Fixed, monospace;
+ line-height: 1.2em;
+ word-break: break-word;
+
+ color: #ffffff;
+}
diff --git a/examples/pipetobrowser/browser/pipe-viewers/builtin/console/component.html b/examples/pipetobrowser/browser/pipe-viewers/builtin/console/component.html
new file mode 100644
index 0000000..176c0bd
--- /dev/null
+++ b/examples/pipetobrowser/browser/pipe-viewers/builtin/console/component.html
@@ -0,0 +1,20 @@
+<link rel="import" href="/libs/vendor/polymer/polymer/polymer.html">
+
+<polymer-element name="p2b-plugin-console">
+ <template>
+ <link rel="stylesheet" href="component.css">
+ <pre id="console"></pre>
+ </template>
+ <script>
+ Polymer('p2b-plugin-console', {
+ /*
+ * Appends text to the console
+ * @param {string} text Text to add
+ */
+ addText: function(text) {
+ var textNode = document.createTextNode(text);
+ this.$.console.appendChild(textNode);
+ }
+ });
+ </script>
+</polymer-element>
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/pipe-viewers/builtin/console/console.js b/examples/pipetobrowser/browser/pipe-viewers/builtin/console/console.js
index 1982003..d56ea31 100644
--- a/examples/pipetobrowser/browser/pipe-viewers/builtin/console/console.js
+++ b/examples/pipetobrowser/browser/pipe-viewers/builtin/console/console.js
@@ -6,27 +6,22 @@
import { View } from 'view';
import { PipeViewer } from 'pipe-viewer';
-import { arrayBufferToString } from 'libs/utils/array-buffer'
-
class ConsolePipeViewer extends PipeViewer {
get name() {
return 'console';
}
play(stream) {
- var textarea = document.createElement('textarea');
- textarea.readonly = true;
- textarea.cols = 100;
- textarea.rows = 15;
- var chunk;
- stream.on('readable', () => {
- while(null !== (chunk = stream.read())) {
- var buf = arrayBufferToString(chunk);
- textarea.value += buf;
- }
+ var consoleView = document.createElement('p2b-plugin-console');
+
+ // read data as UTF8
+ stream.setEncoding('utf8');
+ stream.on('data', (buf) => {
+ var textVal = buf.toString();
+ consoleView.addText(textVal);
});
- return new View(textarea);
+ return new View(consoleView);
}
}
diff --git a/examples/pipetobrowser/browser/pipe-viewers/builtin/image/image.js b/examples/pipetobrowser/browser/pipe-viewers/builtin/image/image.js
new file mode 100644
index 0000000..f2c5002
--- /dev/null
+++ b/examples/pipetobrowser/browser/pipe-viewers/builtin/image/image.js
@@ -0,0 +1,34 @@
+/*
+ * Image is a Pipe Viewer that displays an image
+ * @fileoverview
+ */
+
+import { View } from 'view';
+import { PipeViewer } from 'pipe-viewer';
+
+class ImagePipeViewer extends PipeViewer {
+ get name() {
+ return 'image';
+ }
+
+ play(stream) {
+ var viewPromise = new Promise(function(resolve,reject) {
+ var blobParts = [];
+ stream.on('data', (chunk) => {
+ blobParts.push(new Uint8Array(chunk));
+ });
+
+ stream.on('end', () => {
+ var image = document.createElement('img');
+ image.style.width = '100%';
+ var url = URL.createObjectURL(new Blob(blobParts));
+ image.src = url;
+ resolve(new View(image));
+ });
+ });
+
+ return viewPromise;
+ }
+}
+
+export default ImagePipeViewer;
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/runtime/app.js b/examples/pipetobrowser/browser/runtime/app.js
new file mode 100644
index 0000000..33072b7
--- /dev/null
+++ b/examples/pipetobrowser/browser/runtime/app.js
@@ -0,0 +1,74 @@
+import { Logger } from 'libs/logs/logger'
+
+import { registerNavigateHomePageAction, navigateHomePage } from 'actions/navigate-home-page'
+import { registerDisplayErrorAction } from 'actions/display-error'
+import { registerAddPipeViewerAction } from 'actions/add-pipe-viewer'
+import { registerNavigatePipesPageAction, navigatePipesPage } from 'actions/navigate-pipes-page'
+
+import { SubPageItem } from 'views/page/view'
+
+import { page } from 'runtime/context'
+
+var log = new Logger('app');
+
+export function start() {
+
+ log.debug('start called');
+
+ // Initialize a new page, sets up toolbar and action bar for the app
+ initPageView();
+
+ // Register the action handlers for the application
+ registerActions();
+
+ // Start by triggering the home action
+ navigateHomePage();
+}
+
+/*
+ * Registers the action handlers for the application.
+ * Actions are cohesive pieces of functionality that can be triggered from
+ * any other action in a decoupled way by just using the action name.
+ *
+ * @private
+ */
+function registerActions() {
+
+ log.debug('registering actions');
+
+ registerNavigateHomePageAction();
+ registerDisplayErrorAction();
+ registerAddPipeViewerAction();
+ registerNavigatePipesPageAction();
+}
+
+/*
+ * Constructs a new page, sets up toolbar and action bar for the app
+ *
+ * @private
+ */
+function initPageView() {
+
+ // Home, Pipes and Help are top level sub-pages
+ var homeSubPageItem = new SubPageItem('home');
+ homeSubPageItem.name = 'Home';
+ homeSubPageItem.icon = 'home';
+ homeSubPageItem.onActivate = navigateHomePage;
+ page.subPages.push(homeSubPageItem);
+
+ var pipesSubPageItem = new SubPageItem('pipes');
+ pipesSubPageItem.name = 'Pipes';
+ pipesSubPageItem.icon = 'arrow-forward';
+ pipesSubPageItem.onActivate = navigatePipesPage;
+ page.subPages.push(pipesSubPageItem);
+
+ var helpSubPageItem = new SubPageItem('help');
+ helpSubPageItem.name = 'Help';
+ helpSubPageItem.icon = 'help';
+ helpSubPageItem.onActivate = function() {
+ alert('Not Implemented');
+ };
+ page.subPages.push(helpSubPageItem);
+
+ document.body.appendChild(page.element);
+}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/runtime/context.js b/examples/pipetobrowser/browser/runtime/context.js
new file mode 100644
index 0000000..0c92a81
--- /dev/null
+++ b/examples/pipetobrowser/browser/runtime/context.js
@@ -0,0 +1,21 @@
+/*
+ * Holds references to runtime context but instead of one big context object
+ * different context are exposed as their own object allowing other modules
+ * just pick the context they need.
+ * @fileoverview
+ */
+
+import { PageView } from 'views/page/view'
+import { PipesView } from 'views/pipes/view'
+
+/*
+ * Reference to the current page view object constructed by the application
+ * @type {View}
+ */
+export var page = new PageView();
+
+/*
+ * Reference to the current pipes view object constructed by the application
+ * @type {View}
+ */
+export var pipesViewInstance = new PipesView();
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/init.js b/examples/pipetobrowser/browser/runtime/init.js
similarity index 85%
rename from examples/pipetobrowser/browser/init.js
rename to examples/pipetobrowser/browser/runtime/init.js
index 5cb784d..05e451f 100644
--- a/examples/pipetobrowser/browser/init.js
+++ b/examples/pipetobrowser/browser/runtime/init.js
@@ -11,9 +11,9 @@
'view': 'libs/mvc/view.js'
};
- System.import('app').then(function(app) {
- app.start();
+ System.import('runtime/app').then(function(app) {
+ app.start();
}).catch(function(e) {
console.error(e);
});
-});
\ No newline at end of file
+});
diff --git a/examples/pipetobrowser/browser/services/pipe-to-browser.js b/examples/pipetobrowser/browser/services/pipe-to-browser.js
index 7859f23..77e955d 100644
--- a/examples/pipetobrowser/browser/services/pipe-to-browser.js
+++ b/examples/pipetobrowser/browser/services/pipe-to-browser.js
@@ -5,8 +5,9 @@
* @fileoverview
*/
-import { Logger } from "libs/logs/logger"
+import { Logger } from 'libs/logs/logger'
import { config } from 'config'
+import { ByteObjectStreamAdapter } from 'libs/utils/byte-object-stream-adapter'
var log = new Logger('services/p2b');
var v = new Veyron(config.veyron);
@@ -17,7 +18,11 @@
init() {
this.published = false;
this.publishing = false;
- this.serviceEndpoint = null;
+ this.stopping = false;
+ this.fullServiceName = null;
+ this.date = null;
+ this.numPipes = 0;
+ this.numBytes = 0;
},
reset() {
state.init();
@@ -37,6 +42,7 @@
* @param {string} name Name to publish the service under
* @param {function} pipeRequestHandler A function that will be called when
* a request to handle a pipe stream comes in.
+ * @return {Promise} Promise that will resolve or reject when publish completes
*/
export function publish(name, pipeRequestHandler) {
log.debug('publishing under name:', name);
@@ -50,17 +56,23 @@
return new Promise(function(resolve, reject) {
log.debug('received pipe request for:', $suffix);
- $stream.on('end', () => {
+ var bufferStream = new ByteObjectStreamAdapter();
+ $stream.pipe(bufferStream);
+
+ bufferStream.on('end', () => {
log.debug('end of stream');
resolve('done');
});
- $stream.on('error', (e) => {
+ bufferStream.on('error', (e) => {
log.debug('stream error', e);
reject(e);
});
- pipeRequestHandler($suffix, $stream);
+ state.numPipes++;
+ //TODO(aghassemi) pipe to a byte-size-sniffer to update state.numBytes
+
+ pipeRequestHandler($suffix, bufferStream);
});
}
};
@@ -73,9 +85,24 @@
state.published = true;
state.publishing = false;
- state.serviceEndpoint = endpoint;
+ state.fullServiceName = config.publishNamePrefix + '/' + name;
+ state.date = new Date();
return endpoint;
});
- }).catch((err) => { state.reset(); return Promise.reject(err); });
+ }).catch((err) => { state.reset(); throw err; });
+}
+
+/*
+ * Stops the service and unpublishes it, effectively destroying the service.
+ * @return {Promise} Promise that will resolve or reject when stopping completes
+ */
+export function stopPublishing() {
+ log.debug('stopping service');
+ state.stopping = true;
+ return server.stop().then(function() {
+ log.debug('service stopped');
+ state.reset();
+ return;
+ });
}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/views/common/common.css b/examples/pipetobrowser/browser/views/common/common.css
index f4d336f..a12d237 100644
--- a/examples/pipetobrowser/browser/views/common/common.css
+++ b/examples/pipetobrowser/browser/views/common/common.css
@@ -1,3 +1,25 @@
.hidden {
- display: none;
+ display: none !important;
}
+
+paper-button {
+ margin: 1em;
+ width: 10em;
+ display: block;
+ cursor: default;
+}
+
+paper-button.colored {
+ background: #4285f4;
+ color:#FFFFFF;
+}
+
+paper-button.colored.red {
+ background: #d34336;
+}
+
+[flex] {
+ display: flex;
+ flex-direction: column;
+ flex: 1 1 0px;
+}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/views/error/component.html b/examples/pipetobrowser/browser/views/error/component.html
index 0aa6f19..3df3570 100644
--- a/examples/pipetobrowser/browser/views/error/component.html
+++ b/examples/pipetobrowser/browser/views/error/component.html
@@ -1,4 +1,4 @@
-<link rel="import" href="../../libs/vendor/polymer/polymer/polymer.html">
+<link rel="import" href="/libs/vendor/polymer/polymer/polymer.html">
<polymer-element name="p2b-error">
<template>
@@ -6,8 +6,6 @@
</template>
<script>
Polymer('p2b-error', {
- ready: function() {
- },
errorMessage: null
});
</script>
diff --git a/examples/pipetobrowser/browser/views/loading/component.html b/examples/pipetobrowser/browser/views/loading/component.html
new file mode 100644
index 0000000..2017642
--- /dev/null
+++ b/examples/pipetobrowser/browser/views/loading/component.html
@@ -0,0 +1,11 @@
+<link rel="import" href="/libs/vendor/polymer/polymer/polymer.html">
+
+<polymer-element name="p2b-loading">
+ <template>
+ <div>Loading...</div>
+ </template>
+ <script>
+ Polymer('p2b-loading', {
+ });
+ </script>
+</polymer-element>
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/views/loading/view.js b/examples/pipetobrowser/browser/views/loading/view.js
new file mode 100644
index 0000000..9b04512
--- /dev/null
+++ b/examples/pipetobrowser/browser/views/loading/view.js
@@ -0,0 +1,13 @@
+import { View } from 'libs/mvc/view'
+
+/*
+ * View representing a loading indicator
+ * @class
+ * @extends {View}
+ */
+export class LoadingView extends View {
+ constructor() {
+ var el = document.createElement('p2b-loading');
+ super(el);
+ }
+}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/views/page/component.css b/examples/pipetobrowser/browser/views/page/component.css
new file mode 100644
index 0000000..08ade2f
--- /dev/null
+++ b/examples/pipetobrowser/browser/views/page/component.css
@@ -0,0 +1,50 @@
+:host {
+ font-family: 'Roboto', sans-serif;
+ color: #252525;
+}
+
+[drawer] {
+ background-color: #FAFAFA;
+ box-shadow: 2px 2px 4px rgba(0, 0, 0, 0.15);
+}
+
+[drawer] core-toolbar {
+ background-color: rgb(66, 133, 244);
+ color: #FAFAFA;
+}
+
+[sidebar] {
+ padding: 0.5em;
+}
+
+[sidebar] .core-selected {
+ color: #00bcd4;
+}
+
+[main] {
+ height: 100%;
+}
+
+[main] core-toolbar {
+ background-color: rgb(51, 103, 214);
+ color: #FAFAFA;
+}
+
+core-drawer-panel:not([narrow]) paper-icon-button[icon=menu] {
+ display: none;
+}
+
+.sub-page {
+ padding: 1.5em;
+ display: none;
+}
+
+.sub-page.core-selected {
+ display: block;
+}
+
+h1, h2 {
+ font-size: 1em;
+ margin: 0;
+ font-weight: normal;
+}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/views/page/component.html b/examples/pipetobrowser/browser/views/page/component.html
index 6ee70d1..fdb070b 100644
--- a/examples/pipetobrowser/browser/views/page/component.html
+++ b/examples/pipetobrowser/browser/views/page/component.html
@@ -1,20 +1,120 @@
-<link rel="import" href="../../libs/vendor/polymer/polymer/polymer.html">
+<link rel="import" href="/libs/vendor/polymer/polymer/polymer.html">
+<link rel="import" href="/libs/vendor/polymer/core-drawer-panel/core-drawer-panel.html">
+<link rel="import" href="/libs/vendor/polymer/core-header-panel/core-header-panel.html">
+<link rel="import" href="/libs/vendor/polymer/core-toolbar/core-toolbar.html">
+<link rel="import" href="/libs/vendor/polymer/core-menu/core-menu.html">
+<link rel="import" href="/libs/vendor/polymer/core-item/core-item.html">
+<link rel="import" href="/libs/vendor/polymer/core-selector/core-selector.html">
+<link rel="import" href="/libs/vendor/polymer/paper-appbar/paper-appbar.html">
+<link rel="import" href="/libs/vendor/polymer/paper-icon-button/paper-icon-button.html">
+<link href='http://fonts.googleapis.com/css?family=Roboto' rel='stylesheet' type='text/css'>
<polymer-element name="p2b-page">
<template>
- <header role="banner">
- <h1>Pipe To Browser</h1>
- </header>
- <section role="main" id="mainContainer"></section>
+ <link rel="stylesheet" href="../common/common.css">
+ <link rel="stylesheet" href="component.css">
+ <core-drawer-panel id="drawerPanel">
+ <core-header-panel drawer>
+ <core-toolbar>
+ <h1>Pipe To Browser</h1>
+ </core-toolbar>
+
+ <core-menu sidebar valueattr="key" selected="{{ selectedSubPageKey }}">
+ <template repeat="{{ subPage in subPages }}">
+ <core-item key="{{ subPage.key }}" icon="{{ subPage.icon }}" label="{{ subPage.name }}" on-click="{{ activateSubPage }}"></core-item>
+ </template>
+ </core-menu>
+
+ </core-header-panel>
+ <core-header-panel main>
+ <core-toolbar >
+ <paper-icon-button icon="menu" on-click="{{ toggleDrawer }}"></paper-icon-button>
+ <h2>{{ title }}</h2>
+ </core-toolbar>
+
+ <core-selector id="subPagesSelector" valueattr="key" selected="{{ selectedSubPageKey }}">
+ <template repeat="{{ subPage in subPages }}">
+ <div class="sub-page" key="{{ subPage.key }}"></div>
+ </template>
+ </core-selector>
+ </core-header-panel>
+ </core-drawer-panel>
</template>
<script>
Polymer('p2b-page', {
- ready: function() {
+
+ /*
+ * Title of the page
+ * @type {string}
+ */
+ title: '',
+
+ /*
+ * SubPageItem represents top level sub pages that have a sidebar navigation link
+ * and a content area which gets displayed when corresponding sidebar item
+ * is activated by the end user.
+ * @type {object}
+ */
+ subPages: [],
+
+ /*
+ * Currently selected sub page's key
+ * @type {string}
+ */
+ selectedSubPageKey: '',
+
+ /*
+ * Sets the content of the sub page identified by its key and also selects the corresponding sidebar item for it
+ * @param {string} key Key of the sub page
+ * @param {DOMElement} el Element to become the content of the sub page
+ */
+ setSubPage: function(key, el) {
+ // TODO(aghassemi)
+ // This setTimeout is a work-around because template may not have been activated when this is called.
+ // Issue brought up with Polymer team.
+ var self = this;
+ setTimeout(function() {
+ var subPage = self.$.subPagesSelector.querySelector('div[key="' + key + '"]');
+ if(!subPage) {
+ return;
+ }
+ if(el.parentNode !== subPage) {
+ subPage.innerHTML = '';
+ subPage.appendChild(el);
+ }
+ self.selectedSubPageKey = key;
+ });
},
- setMain: function(el) {
- this.$.mainContainer.innerHTML = '';
- this.$.mainContainer.appendChild(el);
+
+ /*
+ * handler for when a sidebar item is clicked
+ * @param {string} key Key of the page
+ * @private
+ */
+ activateSubPage: function(e) {
+ // find the targeted subPage item
+ var key = e.toElement.getAttribute('key');
+ var subPage = this.subPages.filter(function(s) {
+ return s.key === key;
+ })[0];
+
+ // call the sub page's delegate
+ if(subPage.onActivate) {
+ subPage.onActivate.call(subPage.onActivate);
+ }
+
+ // toggle the drawer
+ this.toggleDrawer();
+ },
+
+ /*
+ * toggles the drawer
+ * @private
+ */
+ toggleDrawer: function() {
+ this.$.drawerPanel.togglePanel();
}
+
});
</script>
</polymer-element>
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/views/page/view.js b/examples/pipetobrowser/browser/views/page/view.js
index 69aae21..7435950 100644
--- a/examples/pipetobrowser/browser/views/page/view.js
+++ b/examples/pipetobrowser/browser/views/page/view.js
@@ -8,15 +8,64 @@
*/
export class PageView extends View {
constructor() {
- var el = document.querySelector('p2b-page');
+ var el = document.createElement('p2b-page');
+ el.subPages = [];
super(el);
}
/*
- * Displays the given view inside the main area of the page
+ * Displays the given view inside the sub page area identified by the key.
+ * @param {String} subPageKey Key for the sub page to display.
* @param {View} view View to display.
*/
- setMainView(view) {
- this.element.setMain(view.element);
+ setSubPageView(subPageKey, view) {
+ this.element.setSubPage(subPageKey, view.element);
}
+
+ /*
+ * Collection of sub pages
+ * @type {SubPageItem}
+ */
+ get subPages() {
+ return this.element.subPages;
+ }
+
+ /*
+ * Title of the page
+ * @type {string}
+ */
+ set title(title) {
+ this.element.title = title;
+ }
+
+}
+
+/*
+ * SubPageItem represents top level sub pages that have a sidebar navigation link
+ * and a content area which gets displayed when corresponding sidebar item
+ * is activated by the end user.
+ * @param {String} key Unique identified for this sub page
+ * @class
+ */
+export class SubPageItem {
+ constructor(key) {
+ /*
+ * Name of the page. Normally displayed as the sidebar navigation item text
+ * @type {String}
+ */
+ this.name = name;
+
+ /*
+ * Unique identified for this sub page
+ * @type {String}
+ */
+ this.key = key;
+
+ /*
+ * Function that's called when user activates the sub page, normally by clicking
+ * the sidebar navigation items for the sub page
+ * @type {Function}
+ */
+ this.onActivate = null;
+ }
}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/views/pipe-viewer-placeholder/component.html b/examples/pipetobrowser/browser/views/pipe-viewer-placeholder/component.html
deleted file mode 100644
index 87d8b34..0000000
--- a/examples/pipetobrowser/browser/views/pipe-viewer-placeholder/component.html
+++ /dev/null
@@ -1,22 +0,0 @@
-<link rel="import" href="../../libs/vendor/polymer/polymer/polymer.html">
-
-<polymer-element name="p2b-pipe-viewer-placeholder">
- <template>
- <div>Viewer</div>
- <div role="main" id="mainContainer"></div>
- </template>
- <script>
- Polymer('p2b-pipe-viewer-placeholder', {
- ready: function() {
- this.showLoadingWidget();
- },
- showViewer: function(el) {
- this.$.mainContainer.innerHTML = '';
- this.$.mainContainer.appendChild(el);
- },
- showLoadingWidget: function() {
- this.$.mainContainer.innerHTML = 'Loading...';
- }
- });
- </script>
-</polymer-element>
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/views/pipe-viewer-placeholder/view.js b/examples/pipetobrowser/browser/views/pipe-viewer-placeholder/view.js
deleted file mode 100644
index c65e1f2..0000000
--- a/examples/pipetobrowser/browser/views/pipe-viewer-placeholder/view.js
+++ /dev/null
@@ -1,22 +0,0 @@
-import { View } from 'libs/mvc/view'
-
-/*
- * View representing a placeholder that will be filled with a pipe viewer element.
- * Acts as the parent of pipe viewers and handles loading UI until actual viewer is ready.
- * @class
- * @extends {View}
- */
-export class PipeViewerPlaceholderView extends View {
- constructor() {
- var el = document.createElement('p2b-pipe-viewer-placeholder');
- super(el);
- }
-
- /*
- * Displays the given view inside the placeholder
- * @param {View} view View to display.
- */
- showViewer(view) {
- this.element.showViewer(view.element);
- }
-}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/views/pipes/component.css b/examples/pipetobrowser/browser/views/pipes/component.css
new file mode 100644
index 0000000..5b79a3b
--- /dev/null
+++ b/examples/pipetobrowser/browser/views/pipes/component.css
@@ -0,0 +1,42 @@
+#tabs {
+ background-color: #00bcd4;
+ color: #fafafa;
+ box-shadow: 2px 2px 4px rgba(0, 0, 0, 0.15);
+ width: 100%;
+ z-index: 1;
+}
+
+#tabs > paper-tab:not(:last-child) {
+ border-right: solid 1px rgba(0, 0, 0, 0.1);
+}
+
+#tabPages {
+ position: relative;
+ overflow: hidden;
+}
+
+.no-pipes-bg {
+ background-image: url('factory.png');
+ background-size: cover;
+ background-repeat: no-repeat;
+ background-position: 70% 50%;
+ height: 100%;
+ width: 100%;
+ opacity: 0.15;
+}
+
+.empty-message {
+ font-size: 1.5em;
+ padding: 1.5em;
+ position: absolute;
+ margin: 0px;
+ color: #4285f4;
+}
+
+.container {
+ position: absolute;
+ bottom: 0;
+ top: 0;
+ right: 0;
+ left: 0;
+}
diff --git a/examples/pipetobrowser/browser/views/pipes/component.html b/examples/pipetobrowser/browser/views/pipes/component.html
new file mode 100644
index 0000000..e820020
--- /dev/null
+++ b/examples/pipetobrowser/browser/views/pipes/component.html
@@ -0,0 +1,146 @@
+<link rel="import" href="/libs/vendor/polymer/polymer/polymer.html">
+<link rel="import" href="/libs/vendor/polymer/core-pages/core-pages.html">
+<link rel="import" href="/libs/vendor/polymer/core-icons/core-icons.html">
+<link rel="import" href="/libs/vendor/polymer/core-icon-button/core-icon-button.html">
+<link rel="import" href="/libs/vendor/polymer/core-toolbar/core-toolbar.html">
+<link rel="import" href="/libs/vendor/polymer/core-selector/core-selector.html">
+<link rel="import" href="/libs/vendor/polymer/paper-tabs/paper-tabs.html">
+<link rel="import" href="tab-content/component.html">
+<link rel="import" href="tab-toolbar/component.html">
+
+<polymer-element name="p2b-pipes">
+ <template>
+ <link rel="stylesheet" href="../common/common.css">
+ <link rel="stylesheet" href="component.css">
+ <div class="container" flex>
+ <template if="{{ numTabs == 0 }}">
+ <p class="empty-message">No pipes to show...</p>
+ <div class="no-pipes-bg"></div>
+ </template>
+
+ <div id="tabsContainer" class="{{ {hidden : numTabs == 0} | tokenList}}" flex>
+ <paper-tabs id="tabs" class="{{ {hidden : numTabs <= 1} | tokenList}}" on-core-select="{{ handleTabSelectionChange }}" valueattr="key" selected="{{ selectedTabKey }}" noink></paper-tabs>
+ <core-selector id="tabPages" valueattr="key" selected="{{ selectedTabKey }}" flex></core-selector>
+ </div>
+ </div>
+ </template>
+ <script>
+ Polymer('p2b-pipes', {
+
+ /*
+ * Map of existing pipe tabs. Key is the tab key.
+ * @type {set}
+ * @private
+ */
+ pipeTabs: {},
+
+ /*
+ * Key of currently selected tab
+ * @type {string}
+ */
+ selectedTabKey : '',
+
+ /*
+ * Stack of previously selected tabs.
+ * @type {Array<string>}
+ * @private
+ */
+ selectionHistoryStack: [],
+
+ /*
+ * Number of open tabs
+ * @type {integer}
+ * @private
+ */
+ get numTabs() {
+ return Object.keys(this.pipeTabs).length;
+ },
+
+ /*
+ * Adds a new tab
+ * @param {string} key Key of the tab to add
+ * @param {string} name Name of the tab to add
+ * @param {DOMElement} el Content of the tab
+ */
+ addTab: function(key, name, el) {
+ var self = this;
+
+ // Create a tab thumb
+ var tab = document.createElement('paper-tab');
+ tab.key = key;
+ tab.textContent = name;
+
+ // Create a tab toolbar and assign the close handler
+ var tabToolbar = document.createElement('p2b-pipes-tab-toolbar');
+ tabToolbar.title = name;
+ tabToolbar.addEventListener('close-action', function() {
+ self.removeTab(key);
+ });
+
+ // Create the content of the tab
+ var tabContent = document.createElement('p2b-pipes-tab-content');
+ tabContent.setAttribute('key', key);
+ tabContent.appendChild(tabToolbar);
+ tabContent.appendChild(el);
+
+ this.$.tabPages.appendChild(tabContent);
+ this.$.tabs.appendChild(tab);
+
+ // Add the tab to our list.
+ this.pipeTabs[key] = {
+ name: name,
+ tab: tab,
+ tabContent: tabContent
+ };
+
+ this.selectedTabKey = key;
+ },
+
+ /*
+ * Removes a tab
+ * @param {string} key Key of the tab to remove
+ */
+ removeTab: function(key) {
+ // Remove tab thumb and content
+ var tab = this.pipeTabs[key].tab;
+ tab.remove();
+ var tabContent = this.pipeTabs[key].tabContent;
+ tabContent.remove();
+
+ // Delete tab from the map
+ delete this.pipeTabs[key];
+
+ // Select an existing tab from previous selection history
+ var toSelect = this.selectionHistoryStack.pop();
+ while ( toSelect && !this.pipeTabs[toSelect] ) {
+ // pop until we find one that still exists
+ toSelect = this.selectionHistoryStack.pop();
+ }
+ if (toSelect) {
+ this.selectedTabKey = toSelect;
+ }
+ },
+
+ /*
+ * Replaces content of a tab
+ * @param {string} key Key of the tab to replace content for
+ * @param {DOMElement} el New content of the tab
+ */
+ replaceTabContent: function(key, newEl) {
+ var tabContent = this.pipeTabs[key].tabContent;
+ tabContent.replaceTabContent(newEl);
+ },
+
+ /*
+ * Adds the tab selection to history when selection changes
+ * @private
+ */
+ handleTabSelectionChange: function(e) {
+ if (!e.detail.isSelected){
+ return;
+ }
+ this.selectionHistoryStack.push(this.selectedTabKey);
+ }
+ });
+ </script>
+</polymer-element>
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/views/pipes/factory.png b/examples/pipetobrowser/browser/views/pipes/factory.png
new file mode 100644
index 0000000..6745634
--- /dev/null
+++ b/examples/pipetobrowser/browser/views/pipes/factory.png
Binary files differ
diff --git a/examples/pipetobrowser/browser/views/pipes/tab-content/component.css b/examples/pipetobrowser/browser/views/pipes/tab-content/component.css
new file mode 100644
index 0000000..d3eea80
--- /dev/null
+++ b/examples/pipetobrowser/browser/views/pipes/tab-content/component.css
@@ -0,0 +1,25 @@
+/* become offset parent for content container */
+.tab-main {
+ position: relative;
+}
+
+/* content fills remaining space */
+.tab-main-content {
+ overflow: auto;
+ position: absolute;
+ top: 0;
+ left: 0;
+ right: 0;
+ bottom: 0;
+}
+
+/* hidden, unless selected */
+:host(.core-selected) {
+ display: flex !important;
+}
+
+:host {
+ display: none !important;
+}
+
+
diff --git a/examples/pipetobrowser/browser/views/pipes/tab-content/component.html b/examples/pipetobrowser/browser/views/pipes/tab-content/component.html
new file mode 100644
index 0000000..3ce5c8e
--- /dev/null
+++ b/examples/pipetobrowser/browser/views/pipes/tab-content/component.html
@@ -0,0 +1,28 @@
+<link rel="import" href="/libs/vendor/polymer/polymer/polymer.html">
+<link rel="import" href="/libs/vendor/polymer/core-toolbar/core-toolbar.html">
+
+<polymer-element name="p2b-pipes-tab-content" flex>
+ <template>
+ <link rel="stylesheet" href="component.css">
+ <content select="p2b-pipes-tab-toolbar"></content>
+ <div class="tab-main" flex>
+ <div id="main" class="tab-main-content" flex>
+ <content></content>
+ </div>
+ </div>
+ </template>
+ <script>
+ Polymer('p2b-pipes-tab-content', {
+
+ /*
+ * Replaces existing content of the tab with the new element
+ * @param {DOMElement} new element to replace existing content
+ */
+ replaceTabContent: function(newEl) {
+ //TODO(aghassemi) There must be a better way for these .innerHTML='', figure it out.
+ this.$.main.innerHTML = '';
+ this.$.main.appendChild(newEl);
+ }
+ });
+ </script>
+</polymer-element>
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/views/pipes/tab-toolbar/component.css b/examples/pipetobrowser/browser/views/pipes/tab-toolbar/component.css
new file mode 100644
index 0000000..acb7187
--- /dev/null
+++ b/examples/pipetobrowser/browser/views/pipes/tab-toolbar/component.css
@@ -0,0 +1,11 @@
+core-toolbar {
+ background-color: rgba(0, 0, 0, 0.10);
+ box-shadow: 2px 2px 4px rgba(0, 0, 0, 0.15);
+ z-index: 1;
+ font-size: 1em;
+ height: 48px;
+}
+
+core-toolbar::shadow .toolbar-tools {
+ height: 48px;
+}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/views/pipes/tab-toolbar/component.html b/examples/pipetobrowser/browser/views/pipes/tab-toolbar/component.html
new file mode 100644
index 0000000..ff4c177
--- /dev/null
+++ b/examples/pipetobrowser/browser/views/pipes/tab-toolbar/component.html
@@ -0,0 +1,30 @@
+<link rel="import" href="/libs/vendor/polymer/polymer/polymer.html">
+
+<polymer-element name="p2b-pipes-tab-toolbar">
+ <template>
+ <link rel="stylesheet" href="component.css">
+ <core-toolbar>
+ <span flex>
+ {{ title }}
+ </span>
+ <paper-icon-button icon="close" on-tap="{{ onClose }}"/>
+ </core-toolbar>
+ </template>
+ <script>
+ Polymer('p2b-pipes-tab-toolbar', {
+ /*
+ * Title of the toolbar
+ * @type {string}
+ */
+ title: '',
+
+ /*
+ * Event that's fired when close action of the toolbar is triggered
+ * @event
+ */
+ onClose: function() {
+ this.fire('close-action');
+ }
+ });
+ </script>
+</polymer-element>
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/views/pipes/view.js b/examples/pipetobrowser/browser/views/pipes/view.js
new file mode 100644
index 0000000..7f94b6b
--- /dev/null
+++ b/examples/pipetobrowser/browser/views/pipes/view.js
@@ -0,0 +1,34 @@
+import { View } from 'libs/mvc/view'
+
+/*
+ * View representing a collection of pipes displayed in tabs.
+ * this view manages the tabs and the empty message when no pipes available
+ * @class
+ * @extends {View}
+ */
+export class PipesView extends View {
+ constructor() {
+ var el = document.createElement('p2b-pipes');
+ super(el);
+ }
+
+ /*
+ * Adds the given view as a new pipe viewer tab
+ * @param {string} key A string key identifier for the tab.
+ * @param {string} name A short name for the tab that will be displayed as
+ * the tab title
+ * @param {View} view View to show inside the tab.
+ */
+ addTab(key, name, view) {
+ this.element.addTab(key, name, view.element);
+ }
+
+ /*
+ * Replaces the content of the tab identified via key by the new view.
+ * @param {string} key A string key identifier for the tab.
+ * @param {View} view View to replace the current tab content
+ */
+ replaceTabView(key, newView) {
+ this.element.replaceTabContent(key, newView.element);
+ }
+}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/views/publish/component.css b/examples/pipetobrowser/browser/views/publish/component.css
new file mode 100644
index 0000000..7f072c0
--- /dev/null
+++ b/examples/pipetobrowser/browser/views/publish/component.css
@@ -0,0 +1,4 @@
+paper-input {
+ width: 100%;
+ max-width: 30em;
+}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/views/publish/component.html b/examples/pipetobrowser/browser/views/publish/component.html
index 4320cd1..e32d8dd 100644
--- a/examples/pipetobrowser/browser/views/publish/component.html
+++ b/examples/pipetobrowser/browser/views/publish/component.html
@@ -1,42 +1,31 @@
-<link rel="import" href="../../libs/vendor/polymer/polymer/polymer.html">
+<link rel="import" href="/libs/vendor/polymer/polymer/polymer.html">
+<link rel="import" href="/libs/vendor/polymer/paper-input/paper-input.html">
+<link rel="import" href="/libs/vendor/polymer/paper-button/paper-button.html">
<polymer-element name="p2b-publish" attributes="publishState">
- <template>
+ <template id="template">
<link rel="stylesheet" href="../common/common.css">
-
- <div>Status:</div>
- <div>Published? {{ publishState.published }}</div>
- <div>Publishing? {{ publishState.publishing }}</div>
- <div>ServiceEndpoint? {{ publishState.serviceEndpoint }}</div>
-
- <div class="{{ {hidden: publishState.published || publishState.publishing} | tokenList }}">
- <input id="publishNameInput" value="p2bService">
- <button on-click="{{ publishAction }}">Publish</button>
- </div>
-
- <div class="{{ {hidden : !publishState.published} | tokenList}}">
- <h2>Waiting for incoming pipe request!</h2>
- </div>
-
+ <link rel="stylesheet" href="component.css">
+ <paper-input id="publishNameInput" label="Name to publish under (e.g. JohnTablet)" error="You must pick a name!" floatinglabel/></paper-input>
+ <paper-button class="paper colored" inkColor="#3367d6" on-click="{{ publishAction }}">Publish</paper-button>
</template>
<script>
Polymer('p2b-publish', {
- ready: function() {
-
- },
- /*
- * Dynamic binding for the state of publishing p2b service.
- * Any changes to this object will be reflected in the UI automatically
- */
- publishState: null,
/*
- * Publish actions. Fires when user decided to publish the p2b service.
+ * Publish action. Fires when user decided to publish the p2b service.
* user-entered name of the service will be provided as value of the event
+ * @event
*/
publishAction: function() {
- this.fire('publish', { publishName: this.$.publishNameInput.value });
+ var name = this.$.publishNameInput.value;
+ if(name === "") {
+ this.$.publishNameInput.invalid = true;
+ this.$.publishNameInput.classList.toggle('invalid', true);
+ return;
+ }
+ this.fire('publish', { publishName: name });
}
});
</script>
diff --git a/examples/pipetobrowser/browser/views/publish/view.js b/examples/pipetobrowser/browser/views/publish/view.js
index 3318d51..d4a6ab2 100644
--- a/examples/pipetobrowser/browser/views/publish/view.js
+++ b/examples/pipetobrowser/browser/views/publish/view.js
@@ -18,7 +18,7 @@
* @type {string} Requested name for service to be published under
*/
onPublishAction(eventHandler) {
- this.element.addEventListener('publish', (e) => {
+ this.element.addEventListener('publish', () => {
eventHandler(e.detail.publishName);
});
}
diff --git a/examples/pipetobrowser/browser/views/status/component.css b/examples/pipetobrowser/browser/views/status/component.css
new file mode 100644
index 0000000..2eca7d3
--- /dev/null
+++ b/examples/pipetobrowser/browser/views/status/component.css
@@ -0,0 +1,14 @@
+h3 {
+ font-size: 1.0em;
+ padding-bottom: 0.2em;
+ color: #4285f4;
+ border-bottom: 1px solid rgba(0,0,0,0.05);
+ font-weight: normal;
+ text-transform: uppercase;
+ margin: 0;
+}
+
+p {
+ margin-top: 0.2em;
+ margin-bottom: 1.5em;
+}
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/views/status/component.html b/examples/pipetobrowser/browser/views/status/component.html
new file mode 100644
index 0000000..bee803f
--- /dev/null
+++ b/examples/pipetobrowser/browser/views/status/component.html
@@ -0,0 +1,123 @@
+<link rel="import" href="/libs/vendor/polymer/polymer/polymer.html">
+
+<polymer-element name="p2b-status" attributes="status">
+
+ <template>
+ <link rel="stylesheet" href="../common/common.css">
+ <link rel="stylesheet" href="component.css">
+ <h3>Status</h3>
+ <p>{{ statusText }}</p>
+ <div class="{{ {hidden : !serviceState.published} | tokenList}}">
+ <h3>Name</h3>
+ <p>{{ serviceState.fullServiceName }}</p>
+
+ <h3>Published on</h3>
+ <p>{{ publishDate }}</p>
+
+ <h3>Uptime</h3>
+ <p>{{ uptime }}</p>
+
+ <h3>Number of pipe requests</h3>
+ <p>{{ numPipes }}</p>
+
+ <h3>Total bytes received</h3>
+ <p>{{ numBytes }}</p>
+ </div>
+ <paper-button class="paper colored red" inkColor="#A9352C" on-click="{{ stopAction }}">Stop Service</paper-button>
+ </template>
+ <script>
+ Polymer('p2b-status', {
+
+ /*
+ * Dynamic binding for the state of publishing p2b service.
+ * Any changes to this object will be reflected in the UI automatically
+ */
+ serviceState: null,
+
+ /*
+ * A function that can format time duration
+ * @private
+ * @type {function}
+ */
+ formatDuration: null,
+
+ /*
+ * Status text
+ * @private
+ * @type {string}
+ */
+ get statusText() {
+ if (!this.serviceState) {
+ return '';
+ }
+ if (this.serviceState.published) {
+ return 'Published';
+ } else if(this.serviceState.publishing) {
+ return 'Publishing';
+ } else if(this.serviceState.stopping) {
+ return 'Stopping';
+ } else {
+ return 'Stopped';
+ }
+ },
+
+ /*
+ * Formatted publish date
+ * @private
+ * @type {string}
+ */
+ get publishDate() {
+ if (!this.serviceState || !this.serviceState.published) {
+ return '';
+ }
+ return this.serviceState.date.toString();
+ },
+
+ /*
+ * Formatted uptime
+ * @private
+ * @type {string}
+ */
+ get uptime() {
+ if (!this.serviceState || !this.serviceState.published) {
+ return '';
+ }
+ var elapsedSeconds = Math.floor((new Date() - this.serviceState.date) / 1000);
+ return this.formatDuration(elapsedSeconds);
+ },
+
+ /*
+ * Formatted number of pipes
+ * @private
+ * @type {string}
+ */
+ get numPipes() {
+ if (!this.serviceState || !this.serviceState.published) {
+ return '';
+ }
+ return this.serviceState.numPipes.toString();
+ },
+
+ /*
+ * Formatted number of bytes
+ * @private
+ * @type {string}
+ */
+ get numBytes() {
+ if (!this.serviceState || !this.serviceState.published) {
+ return '';
+ }
+ return this.serviceState.numBytes.toString();
+ },
+
+ /*
+ * Stop action. Fires when user decides to stop the p2b service.
+ * @event
+ */
+ stopAction: function() {
+ this.fire('stop');
+ }
+
+ });
+ </script>
+</polymer-element>
\ No newline at end of file
diff --git a/examples/pipetobrowser/browser/views/status/view.js b/examples/pipetobrowser/browser/views/status/view.js
new file mode 100644
index 0000000..3bb3f61
--- /dev/null
+++ b/examples/pipetobrowser/browser/views/status/view.js
@@ -0,0 +1,30 @@
+import { View } from 'libs/mvc/view'
+import { formatDuration } from 'libs/utils/time'
+
+/*
+ * View representing the state and interaction for publishing the p2b service.
+ * @class
+ * @extends {View}
+ */
+export class StatusView extends View {
+ constructor(serviceState) {
+ var el = document.createElement('p2b-status');
+ el.serviceState = serviceState;
+
+ // TODO(aghassemi) ES6 import syntax doesn't seem to work inside Polymer
+ // script tag. Test again when compiling server-side with Traceur.
+ el.formatDuration = formatDuration;
+
+ super(el);
+ }
+
+/*
+ * Event representing user's intention to stop the published service
+ * @event
+ */
+ onStopAction(eventHandler) {
+ this.element.addEventListener('stop', (e) => {
+ eventHandler();
+ });
+ }
+}
\ No newline at end of file
diff --git a/examples/pipetobrowser/p2b/main.go b/examples/pipetobrowser/p2b/main.go
index d94bb05..4a7a10a 100644
--- a/examples/pipetobrowser/p2b/main.go
+++ b/examples/pipetobrowser/p2b/main.go
@@ -3,9 +3,9 @@
package main
import (
- "bufio"
"flag"
"fmt"
+ "io"
"os"
"veyron2/rt"
@@ -14,9 +14,8 @@
)
const usage = `
-%s is a Pipe To Browser client. It allows allows
-one to pipe anything from console to the browser Data being piped to
-the browser then is displayed in a graphical and formatted way by a "viewer".
+%s is a Pipe To Browser client. It allows one to pipe any stdout stream from console to the browser.
+Data being piped to the browser then is displayed in a graphical and formatted way by a "viewer".
Usage:
@@ -33,7 +32,17 @@
`
func Usage() {
- fmt.Fprintf(os.Stderr, usage, os.Args[0], os.Args[0])
+ fmt.Fprintf(os.Stdout, usage, os.Args[0], os.Args[0])
+}
+
+// viewerPipeStreamWriter adapts ViewerPipeStream to io.Writer
+type viewerPipeStreamWriter struct {
+ pipetobrowser.ViewerPipeStream
+}
+
+func (w viewerPipeStreamWriter) Write(p []byte) (n int, err error) {
+ w.Send(p)
+ return len(p), nil
}
func main() {
@@ -61,17 +70,16 @@
return
}
- scanner := bufio.NewScanner(os.Stdin)
- scanner.Split(bufio.ScanRunes)
- log.Info("Waiting for input")
- for scanner.Scan() {
- bytes := scanner.Bytes()
-
- if err := stream.Send(bytes); err != nil {
- log.Errorf("error while sending: %v", err)
- return
- }
+ w := viewerPipeStreamWriter{
+ stream,
}
+
+ numBytes, err := io.Copy(w, os.Stdin)
+ if err != nil {
+ log.Errorf("failed to copy the stdin pipe to the outgoing stream\nERR:%v", err)
+ return
+ }
+
stream.CloseSend()
result, err := stream.Finish()
if err != nil {
@@ -80,6 +88,7 @@
}
log.Infof("Stream finished with status: %v", result)
+ log.Infof("Total of %d bytes were piped to browser", numBytes)
fmt.Println("Finished piping to browser! Thanks for using p2b.")
}
diff --git a/examples/rockpaperscissors/common/common.go b/examples/rockpaperscissors/common/common.go
index 63bbadd..796d8c3 100644
--- a/examples/rockpaperscissors/common/common.go
+++ b/examples/rockpaperscissors/common/common.go
@@ -35,8 +35,8 @@
}
// FindJudge returns a random rock-paper-scissors judge from the mount table.
-func FindJudge(mt naming.MountTable) (string, error) {
- judges, err := findAll(mt, "judge")
+func FindJudge() (string, error) {
+ judges, err := findAll("judge")
if err != nil {
return "", err
}
@@ -47,8 +47,8 @@
}
// FindPlayer returns a random rock-paper-scissors player from the mount table.
-func FindPlayer(mt naming.MountTable) (string, error) {
- players, err := findAll(mt, "player")
+func FindPlayer() (string, error) {
+ players, err := findAll("player")
if err != nil {
return "", err
}
@@ -60,17 +60,18 @@
// FindScoreKeepers returns all the rock-paper-scissors score keepers from the
// mount table.
-func FindScoreKeepers(mt naming.MountTable) ([]string, error) {
- sKeepers, err := findAll(mt, "scorekeeper")
+func FindScoreKeepers() ([]string, error) {
+ sKeepers, err := findAll("scorekeeper")
if err != nil {
return nil, err
}
return sKeepers, nil
}
-func findAll(mt naming.MountTable, t string) ([]string, error) {
+func findAll(t string) ([]string, error) {
start := time.Now()
- c, err := mt.Glob(rt.R().TODOContext(), "rps/"+t+"/*")
+ ns := rt.R().Namespace()
+ c, err := ns.Glob(rt.R().TODOContext(), "rps/"+t+"/*")
if err != nil {
vlog.Infof("mt.Glob failed: %v", err)
return nil, err
@@ -81,7 +82,7 @@
servers = append(servers, pickBestServer(e.Servers))
}
}
- vlog.Infof("findAll(%q) elapsed: %s", t, time.Now().Sub(start))
+ vlog.VI(1).Infof("findAll(%q) elapsed: %s", t, time.Now().Sub(start))
return servers, nil
}
@@ -117,8 +118,8 @@
for i, r := range score.Rounds {
roundOffset := time.Duration(r.StartTimeNS - score.StartTimeNS)
roundTime := time.Duration(r.EndTimeNS - r.StartTimeNS)
- fmt.Fprintf(buf, "Round %2d: Player 1 played %-10q. Player 2 played %-10q. Winner: %d [%-10s/%-10s]\n",
- i+1, r.Moves[0], r.Moves[1], r.Winner, roundOffset, roundTime)
+ fmt.Fprintf(buf, "Round %2d: Player 1 played %-10q. Player 2 played %-10q. Winner: %d %-28s [%-10s/%-10s]\n",
+ i+1, r.Moves[0], r.Moves[1], r.Winner, r.Comment, roundOffset, roundTime)
}
fmt.Fprintf(buf, "Winner: %d\n", score.Winner)
fmt.Fprintf(buf, "Time: %s\n", time.Duration(score.EndTimeNS-score.StartTimeNS))
diff --git a/examples/rockpaperscissors/impl/impl.go b/examples/rockpaperscissors/impl/impl.go
index c16d0aa..41fd8f6 100644
--- a/examples/rockpaperscissors/impl/impl.go
+++ b/examples/rockpaperscissors/impl/impl.go
@@ -5,20 +5,18 @@
rps "veyron/examples/rockpaperscissors"
"veyron2/ipc"
- "veyron2/naming"
"veyron2/vlog"
)
// RPS implements rockpaperscissors.RockPaperScissorsService
type RPS struct {
- mt naming.MountTable
player *Player
judge *Judge
scoreKeeper *ScoreKeeper
}
-func NewRPS(mt naming.MountTable) *RPS {
- return &RPS{mt: mt, player: NewPlayer(mt), judge: NewJudge(mt), scoreKeeper: NewScoreKeeper()}
+func NewRPS() *RPS {
+ return &RPS{player: NewPlayer(), judge: NewJudge(), scoreKeeper: NewScoreKeeper()}
}
func (r *RPS) Judge() *Judge {
@@ -51,9 +49,9 @@
return r.judge.play(names[0], id, stream)
}
-func (r *RPS) Challenge(ctx ipc.ServerContext, address string, id rps.GameID) error {
- vlog.VI(1).Infof("Challenge (%q, %+v) from %s", address, id, ctx.RemoteID())
- return r.player.challenge(address, id)
+func (r *RPS) Challenge(ctx ipc.ServerContext, address string, id rps.GameID, opts rps.GameOptions) error {
+ vlog.VI(1).Infof("Challenge (%q, %+v, %+v) from %s", address, id, opts, ctx.RemoteID())
+ return r.player.challenge(address, id, opts)
}
func (r *RPS) Record(ctx ipc.ServerContext, score rps.ScoreCard) error {
diff --git a/examples/rockpaperscissors/impl/impl_test.go b/examples/rockpaperscissors/impl/impl_test.go
index c8dbf8d..af61955 100644
--- a/examples/rockpaperscissors/impl/impl_test.go
+++ b/examples/rockpaperscissors/impl/impl_test.go
@@ -5,7 +5,6 @@
rps "veyron/examples/rockpaperscissors"
"veyron/examples/rockpaperscissors/impl"
- "veyron/runtimes/google/naming/mounttable"
mtlib "veyron/services/mounttable/lib"
"veyron2"
@@ -40,15 +39,13 @@
}
func startRockPaperScissors(t *testing.T, rt veyron2.Runtime, mtAddress string) (*impl.RPS, func()) {
- mt, err := mounttable.New(rt, mtAddress)
- if err != nil {
- t.Fatalf("mounttable.New failed: %v", err)
- }
- server, err := rt.NewServer(veyron2.MountTable(mt))
+ ns := rt.Namespace()
+ ns.SetRoots([]string{mtAddress})
+ server, err := rt.NewServer()
if err != nil {
t.Fatalf("NewServer failed: %v", err)
}
- rpsService := impl.NewRPS(mt)
+ rpsService := impl.NewRPS()
if err := server.Register("", ipc.SoloDispatcher(rps.NewServerRockPaperScissors(rpsService), nil)); err != nil {
t.Fatalf("Register failed: %v", err)
}
diff --git a/examples/rockpaperscissors/impl/judge.go b/examples/rockpaperscissors/impl/judge.go
index 75c2b59..9c607b3 100644
--- a/examples/rockpaperscissors/impl/judge.go
+++ b/examples/rockpaperscissors/impl/judge.go
@@ -10,7 +10,6 @@
rps "veyron/examples/rockpaperscissors"
"veyron/examples/rockpaperscissors/common"
- "veyron2/naming"
"veyron2/rt"
"veyron2/vlog"
)
@@ -21,7 +20,6 @@
)
type Judge struct {
- mt naming.MountTable
lock sync.Mutex
games map[rps.GameID]*gameInfo
gamesRun common.Counter
@@ -64,8 +62,8 @@
score rps.ScoreCard
}
-func NewJudge(mt naming.MountTable) *Judge {
- return &Judge{mt: mt, games: make(map[rps.GameID]*gameInfo)}
+func NewJudge() *Judge {
+ return &Judge{games: make(map[rps.GameID]*gameInfo)}
}
func (j *Judge) Stats() int64 {
@@ -209,7 +207,7 @@
}
// Send the score card to the score keepers.
- keepers, err := common.FindScoreKeepers(j.mt)
+ keepers, err := common.FindScoreKeepers()
if err != nil || len(keepers) == 0 {
vlog.Infof("No score keepers: %v", err)
return
@@ -247,8 +245,8 @@
}
round.Moves[in.player-1] = in.action.Move
}
- round.Winner = j.compareMoves(round.Moves[0], round.Moves[1])
- vlog.Infof("Player 1 played %q. Player 2 played %q. Winner: %d", round.Moves[0], round.Moves[1], round.Winner)
+ round.Winner, round.Comment = j.compareMoves(round.Moves[0], round.Moves[1])
+ vlog.VI(1).Infof("Player 1 played %q. Player 2 played %q. Winner: %d %s", round.Moves[0], round.Moves[1], round.Winner, round.Comment)
action = rps.JudgeAction{RoundResult: round}
for _, s := range info.streams {
@@ -301,24 +299,49 @@
return nil
}
-func (j *Judge) compareMoves(m1, m2 string) rps.WinnerTag {
+var moveComments = map[string]string{
+ "lizard-paper": "lizard eats paper",
+ "lizard-rock": "rock crushes lizard",
+ "lizard-scissors": "scissors decapitates lizard",
+ "lizard-spock": "lizard poisons spock",
+ "paper-rock": "paper covers rock",
+ "paper-scissors": "scissors cuts paper",
+ "paper-spock": "paper disproves spock",
+ "rock-scissors": "rock crushes scissors",
+ "rock-spock": "spock vaporizes rock",
+ "scissors-spock": "spock smashes scissors",
+}
+
+func (j *Judge) compareMoves(m1, m2 string) (winner rps.WinnerTag, comment string) {
+ if m1 < m2 {
+ comment = moveComments[m1+"-"+m2]
+ } else {
+ comment = moveComments[m2+"-"+m1]
+ }
if m1 == m2 {
- return rps.Draw
+ winner = rps.Draw
+ return
}
if m1 == "rock" && (m2 == "scissors" || m2 == "lizard") {
- return rps.Player1
+ winner = rps.Player1
+ return
}
if m1 == "paper" && (m2 == "rock" || m2 == "spock") {
- return rps.Player1
+ winner = rps.Player1
+ return
}
if m1 == "scissors" && (m2 == "paper" || m2 == "lizard") {
- return rps.Player1
+ winner = rps.Player1
+ return
}
if m1 == "lizard" && (m2 == "paper" || m2 == "spock") {
- return rps.Player1
+ winner = rps.Player1
+ return
}
if m1 == "spock" && (m2 == "scissors" || m2 == "rock") {
- return rps.Player1
+ winner = rps.Player1
+ return
}
- return rps.Player2
+ winner = rps.Player2
+ return
}
diff --git a/examples/rockpaperscissors/impl/player.go b/examples/rockpaperscissors/impl/player.go
index 1416f41..f1b84a1 100644
--- a/examples/rockpaperscissors/impl/player.go
+++ b/examples/rockpaperscissors/impl/player.go
@@ -3,28 +3,24 @@
import (
"io"
"math/rand"
- "sync"
"time"
rps "veyron/examples/rockpaperscissors"
"veyron/examples/rockpaperscissors/common"
"veyron2"
- "veyron2/naming"
"veyron2/rt"
"veyron2/vlog"
)
type Player struct {
- mt naming.MountTable
- lock sync.Mutex
gamesPlayed common.Counter
gamesWon common.Counter
gamesInProgress common.Counter
}
-func NewPlayer(mt naming.MountTable) *Player {
- return &Player{mt: mt}
+func NewPlayer() *Player {
+ return &Player{}
}
func (p *Player) Stats() (played, won int64) {
@@ -41,27 +37,29 @@
}
func (p *Player) InitiateGame() error {
- judge, err := common.FindJudge(p.mt)
+ judge, err := common.FindJudge()
if err != nil {
vlog.Infof("FindJudge: %v", err)
return err
}
- gameID, err := p.createGame(judge)
+ gameID, gameOpts, err := p.createGame(judge)
if err != nil {
vlog.Infof("createGame: %v", err)
return err
}
- vlog.Infof("Created gameID %q on %q", gameID, judge)
+ vlog.VI(1).Infof("Created gameID %q on %q", gameID, judge)
- opponent, err := common.FindPlayer(p.mt)
- if err != nil {
- vlog.Infof("FindPlayer: %v", err)
- return err
- }
- vlog.Infof("chosen opponent is %q", opponent)
- if err = p.sendChallenge(opponent, judge, gameID); err != nil {
+ for {
+ opponent, err := common.FindPlayer()
+ if err != nil {
+ vlog.Infof("FindPlayer: %v", err)
+ return err
+ }
+ vlog.VI(1).Infof("chosen opponent is %q", opponent)
+ if err = p.sendChallenge(opponent, judge, gameID, gameOpts); err == nil {
+ break
+ }
vlog.Infof("sendChallenge: %v", err)
- return err
}
result, err := p.playGame(judge, gameID)
if err != nil {
@@ -69,37 +67,39 @@
return err
}
if result.YouWon {
- vlog.Info("Game result: I won! :)")
+ vlog.VI(1).Info("Game result: I won! :)")
} else {
- vlog.Info("Game result: I lost :(")
+ vlog.VI(1).Info("Game result: I lost :(")
}
return nil
}
-func (p *Player) createGame(server string) (rps.GameID, error) {
+func (p *Player) createGame(server string) (rps.GameID, rps.GameOptions, error) {
j, err := rps.BindRockPaperScissors(server)
if err != nil {
- return rps.GameID{}, err
+ return rps.GameID{}, rps.GameOptions{}, err
}
numRounds := 3 + rand.Intn(3)
gameType := rps.Classic
if rand.Intn(2) == 1 {
gameType = rps.LizardSpock
}
- return j.CreateGame(rt.R().TODOContext(), rps.GameOptions{NumRounds: int32(numRounds), GameType: gameType})
+ gameOpts := rps.GameOptions{NumRounds: int32(numRounds), GameType: gameType}
+ gameId, err := j.CreateGame(rt.R().TODOContext(), gameOpts)
+ return gameId, gameOpts, err
}
-func (p *Player) sendChallenge(opponent, judge string, gameID rps.GameID) error {
+func (p *Player) sendChallenge(opponent, judge string, gameID rps.GameID, gameOpts rps.GameOptions) error {
o, err := rps.BindRockPaperScissors(opponent)
if err != nil {
return err
}
- return o.Challenge(rt.R().TODOContext(), judge, gameID)
+ return o.Challenge(rt.R().TODOContext(), judge, gameID, gameOpts)
}
// challenge receives an incoming challenge.
-func (p *Player) challenge(judge string, gameID rps.GameID) error {
- vlog.Infof("challenge received: %s %v", judge, gameID)
+func (p *Player) challenge(judge string, gameID rps.GameID, _ rps.GameOptions) error {
+ vlog.VI(1).Infof("challenge received: %s %v", judge, gameID)
go p.playGame(judge, gameID)
return nil
}
@@ -120,7 +120,7 @@
for {
in, err := game.Recv()
if err == io.EOF {
- vlog.Infof("Game Ended")
+ vlog.VI(1).Infof("Game Ended")
break
}
if err != nil {
@@ -128,24 +128,24 @@
break
}
if in.PlayerNum > 0 {
- vlog.Infof("I'm player %d", in.PlayerNum)
+ vlog.VI(1).Infof("I'm player %d", in.PlayerNum)
}
if len(in.OpponentName) > 0 {
- vlog.Infof("My opponent is %q", in.OpponentName)
+ vlog.VI(1).Infof("My opponent is %q", in.OpponentName)
}
if len(in.MoveOptions) > 0 {
n := rand.Intn(len(in.MoveOptions))
- vlog.Infof("My turn to play. Picked %q from %v", in.MoveOptions[n], in.MoveOptions)
+ vlog.VI(1).Infof("My turn to play. Picked %q from %v", in.MoveOptions[n], in.MoveOptions)
if err := game.Send(rps.PlayerAction{Move: in.MoveOptions[n]}); err != nil {
return rps.PlayResult{}, err
}
}
if len(in.RoundResult.Moves[0]) > 0 {
- vlog.Infof("Player 1 played %q. Player 2 played %q. Winner: %v",
- in.RoundResult.Moves[0], in.RoundResult.Moves[1], in.RoundResult.Winner)
+ vlog.VI(1).Infof("Player 1 played %q. Player 2 played %q. Winner: %v %s",
+ in.RoundResult.Moves[0], in.RoundResult.Moves[1], in.RoundResult.Winner, in.RoundResult.Comment)
}
if len(in.Score.Players) > 0 {
- vlog.Infof("Score card: %s", common.FormatScoreCard(in.Score))
+ vlog.VI(1).Infof("Score card: %s", common.FormatScoreCard(in.Score))
}
}
result, err := game.Finish()
diff --git a/examples/rockpaperscissors/impl/scorekeeper.go b/examples/rockpaperscissors/impl/scorekeeper.go
index 91525ae..6398e76 100644
--- a/examples/rockpaperscissors/impl/scorekeeper.go
+++ b/examples/rockpaperscissors/impl/scorekeeper.go
@@ -21,8 +21,8 @@
}
func (k *ScoreKeeper) Record(ctx ipc.ServerContext, score rps.ScoreCard) error {
- vlog.Infof("Received ScoreCard from %s:", ctx.RemoteID())
- vlog.Info(common.FormatScoreCard(score))
+ vlog.VI(1).Infof("Received ScoreCard from %s:", ctx.RemoteID())
+ vlog.VI(1).Info(common.FormatScoreCard(score))
k.numRecords.Add(1)
return nil
}
diff --git a/examples/rockpaperscissors/rpsbot/main.go b/examples/rockpaperscissors/rpsbot/main.go
index 012d36b..5b06f08 100644
--- a/examples/rockpaperscissors/rpsbot/main.go
+++ b/examples/rockpaperscissors/rpsbot/main.go
@@ -37,7 +37,7 @@
defer server.Stop()
rand.Seed(time.Now().UTC().UnixNano())
- rpsService := impl.NewRPS(r.MountTable())
+ rpsService := impl.NewRPS()
if err := server.Register("", ipc.SoloDispatcher(rps.NewServerRockPaperScissors(rpsService), sflag.NewAuthorizerOrDie())); err != nil {
vlog.Fatalf("Register failed: %v", err)
diff --git a/examples/rockpaperscissors/rpsplayercli/main.go b/examples/rockpaperscissors/rpsplayercli/main.go
new file mode 100644
index 0000000..092dc3f
--- /dev/null
+++ b/examples/rockpaperscissors/rpsplayercli/main.go
@@ -0,0 +1,325 @@
+// rpsplayer is a command-line implementation of the Player service that allows
+// a human player to join the game.
+package main
+
+import (
+ "errors"
+ "flag"
+ "fmt"
+ "io"
+ "os"
+ "sort"
+ "strings"
+ "sync"
+ "time"
+
+ rps "veyron/examples/rockpaperscissors"
+ "veyron/examples/rockpaperscissors/common"
+ sflag "veyron/security/flag"
+
+ "veyron2"
+ "veyron2/ipc"
+ "veyron2/rt"
+ "veyron2/vlog"
+)
+
+var (
+ // TODO(rthellend): Remove the address and protocol flags when the config manager is working.
+ protocol = flag.String("protocol", "tcp", "network to listen on. For example, set to 'veyron' and set --address to the endpoint/name of a proxy to have this service proxied.")
+ address = flag.String("address", ":0", "address to listen on")
+)
+
+func main() {
+ r := rt.Init()
+ defer r.Shutdown()
+ for {
+ if selectOne([]string{"Initiate Game", "Wait For Challenge"}) == 0 {
+ initiateGame()
+ } else {
+ fmt.Println("Waiting to receive a challenge...")
+ game := recvChallenge(r)
+ playGame(game.address, game.id)
+ }
+ if selectOne([]string{"Play Again", "Quit"}) == 1 {
+ break
+ }
+ }
+}
+
+type gameChallenge struct {
+ address string
+ id rps.GameID
+ opts rps.GameOptions
+}
+
+// impl is a PlayerService implementation that prompts the user to accept or
+// decline challenges. While waiting for a reply from the user, any incoming
+// challenges are auto-declined.
+type impl struct {
+ ch chan gameChallenge
+ decline bool
+ lock sync.Mutex
+}
+
+func (i *impl) setDecline(v bool) bool {
+ i.lock.Lock()
+ defer i.lock.Unlock()
+ prev := i.decline
+ i.decline = v
+ return prev
+}
+
+func (i *impl) Challenge(ctx ipc.ServerContext, address string, id rps.GameID, opts rps.GameOptions) error {
+ vlog.VI(1).Infof("Challenge (%q, %+v) from %s", address, id, ctx.RemoteID())
+ // When setDecline(true) returns, future challenges will be declined.
+ // Whether the current challenge should be considered depends on the
+ // previous state. If 'decline' was already true, we need to decline
+ // this challenge. It 'decline' was false, this is the first challenge
+ // that we should process.
+ if i.setDecline(true) {
+ return errors.New("player is busy")
+ }
+ fmt.Println()
+ fmt.Printf("Challenge received from %s for a %d-round ", ctx.RemoteID(), opts.NumRounds)
+ switch opts.GameType {
+ case rps.Classic:
+ fmt.Print("Classic ")
+ case rps.LizardSpock:
+ fmt.Print("Lizard-Spock ")
+ default:
+ }
+ fmt.Println("Game.")
+ if selectOne([]string{"Accept", "Decline"}) == 0 {
+ i.ch <- gameChallenge{address, id, opts}
+ return nil
+ }
+ // Start considering challenges again.
+ i.setDecline(false)
+ return errors.New("player declined challenge")
+}
+
+// recvChallenge runs a server until a game challenge is accepted by the user.
+// The server is stopped afterwards.
+func recvChallenge(rt veyron2.Runtime) gameChallenge {
+ server, err := rt.NewServer()
+ if err != nil {
+ vlog.Fatalf("NewServer failed: %v", err)
+ }
+ ch := make(chan gameChallenge)
+
+ if err := server.Register("", ipc.SoloDispatcher(rps.NewServerPlayer(&impl{ch: ch}), sflag.NewAuthorizerOrDie())); err != nil {
+ vlog.Fatalf("Register failed: %v", err)
+ }
+ ep, err := server.Listen(*protocol, *address)
+ if err != nil {
+ vlog.Fatalf("Listen(%q, %q) failed: %v", "tcp", *address, err)
+ }
+ hostname, err := os.Hostname()
+ if err != nil {
+ vlog.Fatalf("os.Hostname failed: %v", err)
+ }
+ if err := server.Publish(fmt.Sprintf("rps/player/%s@%s", os.Getenv("USER"), hostname)); err != nil {
+ vlog.Fatalf("Publish failed: %v", err)
+ }
+ vlog.Infof("Listening on endpoint /%s", ep)
+ result := <-ch
+ server.Stop()
+ return result
+}
+
+// initiateGame initiates a new game by getting a list of judges and players,
+// and asking the user to select one of each, to select the game options, what
+// to play, etc.
+func initiateGame() error {
+ jChan := make(chan findResult)
+ oChan := make(chan findResult)
+ go findAll("judge", jChan)
+ go findAll("player", oChan)
+
+ fmt.Println("Looking for available participants...")
+ judges := <-jChan
+ opponents := <-oChan
+ fmt.Println()
+ if len(judges.names) == 0 || len(opponents.names) == 0 {
+ return errors.New("no one to play with")
+ }
+
+ fmt.Println("Choose a judge:")
+ j := selectOne(judges.names)
+ fmt.Println("Choose an opponent:")
+ o := selectOne(opponents.names)
+ fmt.Println("Choose the type of rock-paper-scissors game would you like to play:")
+ gameType := selectOne([]string{"Classic", "LizardSpock"})
+ fmt.Println("Choose the number of rounds required to win:")
+ numRounds := selectOne([]string{"1", "2", "3", "4", "5", "6"}) + 1
+ gameOpts := rps.GameOptions{NumRounds: int32(numRounds), GameType: rps.GameTypeTag(gameType)}
+
+ gameID, err := createGame(judges.servers[j], gameOpts)
+ if err != nil {
+ vlog.Infof("createGame: %v", err)
+ return err
+ }
+ for {
+ err := sendChallenge(opponents.servers[o], judges.servers[j], gameID, gameOpts)
+ if err == nil {
+ break
+ }
+ fmt.Printf("Challenge was declined by %s (%v)\n", opponents.names[o], err)
+ fmt.Println("Choose another opponent:")
+ o = selectOne(opponents.names)
+ }
+ fmt.Println("Joining the game...")
+ if _, err = playGame(judges.servers[j], gameID); err != nil {
+ vlog.Infof("playGame: %v", err)
+ return err
+ }
+ return nil
+}
+
+func createGame(server string, opts rps.GameOptions) (rps.GameID, error) {
+ j, err := rps.BindRockPaperScissors(server)
+ if err != nil {
+ return rps.GameID{}, err
+ }
+ return j.CreateGame(rt.R().TODOContext(), opts)
+}
+
+func sendChallenge(opponent, judge string, gameID rps.GameID, gameOpts rps.GameOptions) error {
+ o, err := rps.BindRockPaperScissors(opponent)
+ if err != nil {
+ return err
+ }
+ return o.Challenge(rt.R().TODOContext(), judge, gameID, gameOpts)
+}
+
+func playGame(judge string, gameID rps.GameID) (rps.PlayResult, error) {
+ fmt.Println()
+ j, err := rps.BindRockPaperScissors(judge)
+ if err != nil {
+ return rps.PlayResult{}, err
+ }
+ game, err := j.Play(rt.R().TODOContext(), gameID, veyron2.CallTimeout(10*time.Minute))
+ if err != nil {
+ return rps.PlayResult{}, err
+ }
+ var playerNum int32
+ for {
+ in, err := game.Recv()
+ if err == io.EOF {
+ fmt.Println("Game Ended")
+ break
+ }
+ if err != nil {
+ vlog.Infof("recv error: %v", err)
+ break
+ }
+ if in.PlayerNum > 0 {
+ playerNum = in.PlayerNum
+ fmt.Printf("You are player %d\n", in.PlayerNum)
+ }
+ if len(in.OpponentName) > 0 {
+ fmt.Printf("Your opponent is %q\n", in.OpponentName)
+ }
+ if len(in.RoundResult.Moves[0]) > 0 {
+ if playerNum != 1 && playerNum != 2 {
+ vlog.Fatalf("invalid playerNum: %d", playerNum)
+ }
+ fmt.Printf("You played %q\n", in.RoundResult.Moves[playerNum-1])
+ fmt.Printf("Your opponent played %q\n", in.RoundResult.Moves[2-playerNum])
+ if len(in.RoundResult.Comment) > 0 {
+ fmt.Printf(">>> %s <<<\n", strings.ToUpper(in.RoundResult.Comment))
+ }
+ if in.RoundResult.Winner == 0 {
+ fmt.Println("----- It's a draw -----")
+ } else if rps.WinnerTag(playerNum) == in.RoundResult.Winner {
+ fmt.Println("***** You WIN *****")
+ } else {
+ fmt.Println("##### You LOSE #####")
+ }
+ }
+ if len(in.MoveOptions) > 0 {
+ fmt.Println()
+ fmt.Println("Choose your weapon:")
+ m := selectOne(in.MoveOptions)
+ if err := game.Send(rps.PlayerAction{Move: in.MoveOptions[m]}); err != nil {
+ return rps.PlayResult{}, err
+ }
+ }
+ if len(in.Score.Players) > 0 {
+ fmt.Println()
+ fmt.Println("==== GAME SUMMARY ====")
+ fmt.Print(common.FormatScoreCard(in.Score))
+ fmt.Println("======================")
+ if rps.WinnerTag(playerNum) == in.Score.Winner {
+ fmt.Println("You won! :)")
+ } else {
+ fmt.Println("You lost! :(")
+ }
+ }
+ }
+ return game.Finish()
+}
+
+func selectOne(choices []string) (choice int) {
+ if len(choices) == 0 {
+ vlog.Fatal("No options to choose from!")
+ }
+ fmt.Println()
+ for i, x := range choices {
+ fmt.Printf(" %d. %s\n", i+1, x)
+ }
+ fmt.Println()
+ for {
+ if len(choices) == 1 {
+ fmt.Print("Select one [1] --> ")
+ } else {
+ fmt.Printf("Select one [1-%d] --> ", len(choices))
+ }
+ fmt.Scanf("%d", &choice)
+ if choice >= 1 && choice <= len(choices) {
+ choice -= 1
+ break
+ }
+ }
+ fmt.Println()
+ return
+}
+
+type findResult struct {
+ names []string
+ servers []string
+}
+
+// byName implements sort.Interface for findResult.
+type byName findResult
+
+func (n byName) Len() int {
+ return len(n.names)
+}
+func (n byName) Swap(i, j int) {
+ n.names[i], n.names[j] = n.names[j], n.names[i]
+ n.servers[i], n.servers[j] = n.servers[j], n.servers[i]
+}
+func (n byName) Less(i, j int) bool {
+ return n.names[i] < n.names[j]
+}
+
+func findAll(t string, out chan findResult) {
+ ns := rt.R().Namespace()
+ var result findResult
+ c, err := ns.Glob(rt.R().TODOContext(), "rps/"+t+"/*")
+ if err != nil {
+ vlog.Infof("ns.Glob failed: %v", err)
+ out <- result
+ return
+ }
+ for e := range c {
+ fmt.Print(".")
+ if len(e.Servers) > 0 {
+ result.names = append(result.names, e.Name)
+ result.servers = append(result.servers, e.Servers[0].Server)
+ }
+ }
+ sort.Sort(byName(result))
+ out <- result
+}
diff --git a/examples/rockpaperscissors/service.vdl b/examples/rockpaperscissors/service.vdl
index 4af66e9..1b927b9 100644
--- a/examples/rockpaperscissors/service.vdl
+++ b/examples/rockpaperscissors/service.vdl
@@ -59,6 +59,7 @@
// Round represents the state of a round.
type Round struct {
Moves [2]string // Each player's move.
+ Comment string // A text comment from judge about the round.
Winner WinnerTag // Who won the round.
StartTimeNS int64 // The time at which the round started.
EndTimeNS int64 // The time at which the round ended.
@@ -82,7 +83,7 @@
type Player interface {
// Challenge is used by other players to challenge this player to a game. If
// the challenge is accepted, the method returns nil.
- Challenge(Address string, ID GameID) error
+ Challenge(Address string, ID GameID, Opts GameOptions) error
}
// ScoreKeeper receives the outcome of games from Judges.
diff --git a/examples/rockpaperscissors/service.vdl.go b/examples/rockpaperscissors/service.vdl.go
index 1d9354d..946d6e7 100644
--- a/examples/rockpaperscissors/service.vdl.go
+++ b/examples/rockpaperscissors/service.vdl.go
@@ -43,6 +43,7 @@
// Round represents the state of a round.
type Round struct {
Moves [2]string // Each player's move.
+ Comment string // A text comment from judge about the round.
Winner WinnerTag // Who won the round.
StartTimeNS int64 // The time at which the round started.
EndTimeNS int64 // The time at which the round ended.
@@ -351,6 +352,7 @@
_gen_wiretype.ArrayType{Elem: 0x3, Len: 0x2, Name: "", Tags: []string(nil)}, _gen_wiretype.NamedPrimitiveType{Type: 0x32, Name: "veyron/examples/rockpaperscissors.WinnerTag", Tags: []string(nil)}, _gen_wiretype.StructType{
[]_gen_wiretype.FieldType{
_gen_wiretype.FieldType{Type: 0x47, Name: "Moves"},
+ _gen_wiretype.FieldType{Type: 0x3, Name: "Comment"},
_gen_wiretype.FieldType{Type: 0x48, Name: "Winner"},
_gen_wiretype.FieldType{Type: 0x25, Name: "StartTimeNS"},
_gen_wiretype.FieldType{Type: 0x25, Name: "EndTimeNS"},
@@ -417,7 +419,7 @@
type Player_ExcludingUniversal interface {
// Challenge is used by other players to challenge this player to a game. If
// the challenge is accepted, the method returns nil.
- Challenge(ctx _gen_context.T, Address string, ID GameID, opts ..._gen_ipc.CallOpt) (err error)
+ Challenge(ctx _gen_context.T, Address string, ID GameID, Opts GameOptions, opts ..._gen_ipc.CallOpt) (err error)
}
type Player interface {
_gen_ipc.UniversalServiceMethods
@@ -429,7 +431,7 @@
// Challenge is used by other players to challenge this player to a game. If
// the challenge is accepted, the method returns nil.
- Challenge(context _gen_ipc.ServerContext, Address string, ID GameID) (err error)
+ Challenge(context _gen_ipc.ServerContext, Address string, ID GameID, Opts GameOptions) (err error)
}
// BindPlayer returns the client stub implementing the Player
@@ -475,9 +477,9 @@
name string
}
-func (__gen_c *clientStubPlayer) Challenge(ctx _gen_context.T, Address string, ID GameID, opts ..._gen_ipc.CallOpt) (err error) {
+func (__gen_c *clientStubPlayer) Challenge(ctx _gen_context.T, Address string, ID GameID, Opts GameOptions, opts ..._gen_ipc.CallOpt) (err error) {
var call _gen_ipc.Call
- if call, err = __gen_c.client.StartCall(ctx, __gen_c.name, "Challenge", []interface{}{Address, ID}, opts...); err != nil {
+ if call, err = __gen_c.client.StartCall(ctx, __gen_c.name, "Challenge", []interface{}{Address, ID, Opts}, opts...); err != nil {
return
}
if ierr := call.Finish(&err); ierr != nil {
@@ -544,9 +546,10 @@
InArgs: []_gen_ipc.MethodArgument{
{Name: "Address", Type: 3},
{Name: "ID", Type: 65},
+ {Name: "Opts", Type: 67},
},
OutArgs: []_gen_ipc.MethodArgument{
- {Name: "", Type: 66},
+ {Name: "", Type: 68},
},
}
@@ -556,6 +559,12 @@
_gen_wiretype.FieldType{Type: 0x3, Name: "ID"},
},
"veyron/examples/rockpaperscissors.GameID", []string(nil)},
+ _gen_wiretype.NamedPrimitiveType{Type: 0x32, Name: "veyron/examples/rockpaperscissors.GameTypeTag", Tags: []string(nil)}, _gen_wiretype.StructType{
+ []_gen_wiretype.FieldType{
+ _gen_wiretype.FieldType{Type: 0x24, Name: "NumRounds"},
+ _gen_wiretype.FieldType{Type: 0x42, Name: "GameType"},
+ },
+ "veyron/examples/rockpaperscissors.GameOptions", []string(nil)},
_gen_wiretype.NamedPrimitiveType{Type: 0x1, Name: "error", Tags: []string(nil)}}
return result, nil
@@ -579,8 +588,8 @@
return
}
-func (__gen_s *ServerStubPlayer) Challenge(call _gen_ipc.ServerCall, Address string, ID GameID) (err error) {
- err = __gen_s.service.Challenge(call, Address, ID)
+func (__gen_s *ServerStubPlayer) Challenge(call _gen_ipc.ServerCall, Address string, ID GameID, Opts GameOptions) (err error) {
+ err = __gen_s.service.Challenge(call, Address, ID, Opts)
return
}
@@ -728,6 +737,7 @@
_gen_wiretype.ArrayType{Elem: 0x3, Len: 0x2, Name: "", Tags: []string(nil)}, _gen_wiretype.NamedPrimitiveType{Type: 0x32, Name: "veyron/examples/rockpaperscissors.WinnerTag", Tags: []string(nil)}, _gen_wiretype.StructType{
[]_gen_wiretype.FieldType{
_gen_wiretype.FieldType{Type: 0x43, Name: "Moves"},
+ _gen_wiretype.FieldType{Type: 0x3, Name: "Comment"},
_gen_wiretype.FieldType{Type: 0x44, Name: "Winner"},
_gen_wiretype.FieldType{Type: 0x25, Name: "StartTimeNS"},
_gen_wiretype.FieldType{Type: 0x25, Name: "EndTimeNS"},
diff --git a/examples/todos/test/util.go b/examples/todos/test/util.go
index 3d1b24c..e986be3 100644
--- a/examples/todos/test/util.go
+++ b/examples/todos/test/util.go
@@ -65,7 +65,7 @@
log.Fatal("s.Listen() failed: ", err)
}
- return naming.JoinAddressName(ep.String(), ""), func() {
+ return naming.JoinAddressName(ep.String(), "//"), func() {
s.Stop()
os.Remove(dbDir)
}
diff --git a/examples/unresolve/test_util.go b/examples/unresolve/test_util.go
index 7e3ada1..6a470ed 100644
--- a/examples/unresolve/test_util.go
+++ b/examples/unresolve/test_util.go
@@ -110,7 +110,7 @@
}
func (*fortuneCustomUnresolve) UnresolveStep(context ipc.ServerContext) ([]string, error) {
- servers, err := rt.R().MountTable().ResolveToMountTable(rt.R().NewContext(), "I/want/to/know")
+ servers, err := rt.R().Namespace().ResolveToMountTable(rt.R().NewContext(), "I/want/to/know")
if err != nil {
return nil, err
}
@@ -128,7 +128,7 @@
oa = naming.MakeTerminal(naming.JoinAddressName(ep, "tell/me"))
// Doesn't get unmounted. Fine for a test.
oa = naming.MakeTerminal(oa)
- rt.R().MountTable().Mount(rt.R().NewContext(), "I/want/to/know", oa, 0)
+ rt.R().Namespace().Mount(rt.R().NewContext(), "I/want/to/know", oa, 0)
return oa
}
@@ -151,7 +151,7 @@
}
func (*fortuneNoIDL) UnresolveStep(ipc.ServerCall) ([]string, error) {
- servers, err := rt.R().MountTable().ResolveToMountTable(rt.R().NewContext(), "g")
+ servers, err := rt.R().Namespace().ResolveToMountTable(rt.R().NewContext(), "g")
if err != nil {
return nil, err
}
@@ -185,8 +185,8 @@
return naming.Join(results[0].Server, suffix)
}
-func resolve(t *testing.T, mt naming.MountTable, name string) string {
- results, err := mt.Resolve(rt.R().NewContext(), name)
+func resolve(t *testing.T, ns naming.Namespace, name string) string {
+ results, err := ns.Resolve(rt.R().NewContext(), name)
if err != nil {
t.Errorf("Resolve failed with %v", err)
return ""
@@ -215,8 +215,8 @@
return unres[0]
}
-func unresolve(t *testing.T, mt naming.MountTable, name string) string {
- results, err := mt.Unresolve(rt.R().NewContext(), name)
+func unresolve(t *testing.T, ns naming.Namespace, name string) string {
+ results, err := ns.Unresolve(rt.R().NewContext(), name)
if err != nil {
t.Errorf("Unresolve failed with %v", err)
return ""
diff --git a/examples/unresolve/unresolve_test.go b/examples/unresolve/unresolve_test.go
index 7a218ab..251bf95 100644
--- a/examples/unresolve/unresolve_test.go
+++ b/examples/unresolve/unresolve_test.go
@@ -200,7 +200,7 @@
defer os.Remove(idFile)
os.Setenv("VEYRON_IDENTITY", idFile)
- r, _ := rt.New(veyron2.MountTableRoots([]string{aOA}))
+ r, _ := rt.New(veyron2.NamespaceRoots([]string{aOA}))
ctx := r.NewContext()
resolveCases := []struct {
@@ -215,7 +215,7 @@
{"b/mt/g", gEP},
}
for _, c := range resolveCases {
- if want, got := c.resolved, resolve(t, r.MountTable(), c.name); want != got {
+ if want, got := c.resolved, resolve(t, r.Namespace(), c.name); want != got {
t.Errorf("resolve %q expected %q, got %q instead", c.name, want, got)
}
}
@@ -324,7 +324,7 @@
{naming.Join(gEP, "fortune"), naming.Join(aOA, "b/mt/g/fortune")},
}
for _, c := range unresolveCases {
- if want, got := c.want, unresolve(t, r.MountTable(), c.name); want != got {
+ if want, got := c.want, unresolve(t, r.Namespace(), c.name); want != got {
t.Errorf("unresolve %q expected %q, got %q instead", c.name, want, got)
}
}
diff --git a/examples/wspr_sample/sampled/lib/sampled.go b/examples/wspr_sample/sampled/lib/sampled.go
index 901d459..f00b387 100644
--- a/examples/wspr_sample/sampled/lib/sampled.go
+++ b/examples/wspr_sample/sampled/lib/sampled.go
@@ -46,7 +46,7 @@
// Publish the cache service. This will register it in the mount table and maintain the
// registration until StopServing is called.
- if err := s.Publish("/cache"); err != nil {
+ if err := s.Publish("cache"); err != nil {
return nil, nil, fmt.Errorf("error publishing service: %v", err)
}
diff --git a/examples/wspr_sample/sampled/lib/sampled_test.go b/examples/wspr_sample/sampled/lib/sampled_test.go
index d9a0d30..62c5950 100644
--- a/examples/wspr_sample/sampled/lib/sampled_test.go
+++ b/examples/wspr_sample/sampled/lib/sampled_test.go
@@ -20,7 +20,9 @@
func getCacheClient(address string) (hps.Cache, error) {
rt.Init()
- s, err := hps.BindCache(naming.JoinAddressName(address, "cache"))
+ // Bind to a rooted, terminal name to bypass the MountTable which isn't
+ // actually used, nor needed, in these tests.
+ s, err := hps.BindCache(naming.JoinAddressName(address, "//cache"))
if err != nil {
return nil, err
}
diff --git a/lib/testutil/modules/ls.go b/lib/testutil/modules/ls.go
index daac425..936d50a 100644
--- a/lib/testutil/modules/ls.go
+++ b/lib/testutil/modules/ls.go
@@ -4,6 +4,7 @@
"fmt"
"io"
"strconv"
+ "strings"
"veyron2/rt"
"veyron2/services/mounttable"
@@ -34,13 +35,13 @@
switch g.tag {
case ls:
return `<glob pattern>
-lists names using the local mountTable client's Glob method`
+lists names using the local namespace's Glob method (naming.Namespace.Glob)`
case lsat:
return `<name> <glob pattern>
list names using by invoking the Glob method on name (name.Glob)`
case lsmt:
return `<name> <glob pattern>
-list names using the Glob method on the mountTable at name`
+list names using the Glob method on the mounttable at name (name.Glob)`
default:
return "unknown glob command"
}
@@ -71,19 +72,18 @@
return nil, nil, nil, err
} else {
vars := make(Variables)
- if len(r) > 1 {
- for i, v := range r[:len(r)-1] {
- k := "R" + strconv.Itoa(i)
- vars.Update(k, v)
- }
+ for i, v := range r {
+ k := "R" + strconv.Itoa(i)
+ vars.Update(k, v)
}
+ vars.Update("ALL", strings.Join(r, ","))
return vars, r, nil, nil
}
}
func lsUsingLocalMountTable(pattern string) ([]string, error) {
- lmt := rt.R().MountTable()
- ch, err := lmt.Glob(rt.R().NewContext(), pattern)
+ lns := rt.R().Namespace()
+ ch, err := lns.Glob(rt.R().NewContext(), pattern)
if err != nil {
return nil, fmt.Errorf("pattern %q: %v", pattern, err)
}
@@ -118,8 +118,8 @@
}
func lsUsingResolveToMountTable(name, pattern string) ([]string, error) {
- lmt := rt.R().MountTable()
- servers, err := lmt.ResolveToMountTable(rt.R().NewContext(), name)
+ lns := rt.R().Namespace()
+ servers, err := lns.ResolveToMountTable(rt.R().NewContext(), name)
if err != nil {
return []string{}, err
}
diff --git a/lib/testutil/modules/mounttable.go b/lib/testutil/modules/mounttable.go
index 9f3f6f7..e269882 100644
--- a/lib/testutil/modules/mounttable.go
+++ b/lib/testutil/modules/mounttable.go
@@ -137,7 +137,7 @@
func (*setroot) Help() string {
return `[<mountTable name>]+
-set the local mountTable client's roots to supplied mountTable names`
+set the local namespace's roots to supplied mountTable names`
}
func (*setroot) Daemon() bool { return false }
@@ -151,7 +151,7 @@
return nil, nil, nil, fmt.Errorf("name %q must be rooted", r)
}
}
- rt.R().MountTable().SetRoots(args)
+ rt.R().Namespace().SetRoots(args)
return nil, nil, nil, nil
}
@@ -179,15 +179,15 @@
return nil, nil, nil, fmt.Errorf("wrong #args: %s", rs.Help())
}
name := args[0]
- lmt := rt.R().MountTable()
+ lns := rt.R().Namespace()
var r []string
v := make(Variables)
var servers []string
var err error
if rs.mt {
- servers, err = lmt.ResolveToMountTable(rt.R().NewContext(), name)
+ servers, err = lns.ResolveToMountTable(rt.R().NewContext(), name)
} else {
- servers, err = lmt.Resolve(rt.R().NewContext(), name)
+ servers, err = lns.Resolve(rt.R().NewContext(), name)
}
if err != nil {
return nil, nil, nil, fmt.Errorf("failed resolving %q", name)
diff --git a/runtimes/google/daemon/proxyd/main.go b/runtimes/google/daemon/proxyd/main.go
index 665e625..90fead3 100644
--- a/runtimes/google/daemon/proxyd/main.go
+++ b/runtimes/google/daemon/proxyd/main.go
@@ -40,7 +40,7 @@
defer proxy.Shutdown()
if len(*name) > 0 {
- publisher := publisher.New(r.NewContext(), r.MountTable(), time.Minute)
+ publisher := publisher.New(r.NewContext(), r.Namespace(), time.Minute)
defer publisher.WaitForStop()
defer publisher.Stop()
publisher.AddServer(naming.JoinAddressName(proxy.Endpoint().String(), ""))
diff --git a/runtimes/google/ipc/client.go b/runtimes/google/ipc/client.go
index baedb01..49b3915 100644
--- a/runtimes/google/ipc/client.go
+++ b/runtimes/google/ipc/client.go
@@ -30,7 +30,7 @@
type client struct {
streamMgr stream.Manager
- mt naming.MountTable
+ ns naming.Namespace
vcOpts []stream.VCOpt // vc opts passed to dial
callTimeout time.Duration // call timeout
@@ -48,10 +48,10 @@
// TODO(toddw): Add type and cancel flows.
}
-func InternalNewClient(streamMgr stream.Manager, mt naming.MountTable, opts ...ipc.ClientOpt) (ipc.Client, error) {
+func InternalNewClient(streamMgr stream.Manager, ns naming.Namespace, opts ...ipc.ClientOpt) (ipc.Client, error) {
c := &client{
streamMgr: streamMgr,
- mt: mt,
+ ns: ns,
vcMap: make(map[string]*vcInfo),
callTimeout: defaultCallTimeout,
}
@@ -122,7 +122,10 @@
// startCall ensures StartCall always returns verror.E.
func (c *client) startCall(ctx context.T, name, method string, args []interface{}, opts ...ipc.CallOpt) (ipc.Call, verror.E) {
- servers, err := c.mt.Resolve(ctx, name)
+ if ctx == nil {
+ return nil, verror.BadArgf("ipc: %s.%s called with nil context", name, method)
+ }
+ servers, err := c.ns.Resolve(ctx, name)
if err != nil {
return nil, verror.NotFoundf("ipc: Resolve(%q) failed: %v", name, err)
}
diff --git a/runtimes/google/ipc/flow_test.go b/runtimes/google/ipc/flow_test.go
index 35f7662..e856eb3 100644
--- a/runtimes/google/ipc/flow_test.go
+++ b/runtimes/google/ipc/flow_test.go
@@ -10,6 +10,7 @@
_ "veyron/lib/testutil"
"veyron2/ipc"
+ "veyron2/naming"
"veyron2/security"
"veyron2/verror"
)
@@ -31,6 +32,8 @@
func (f *testFlow) Write(b []byte) (int, error) { return f.w.Write(b) }
func (f *testFlow) LocalAddr() net.Addr { return nil }
func (f *testFlow) RemoteAddr() net.Addr { return nil }
+func (f *testFlow) LocalEndpoint() naming.Endpoint { return nil }
+func (f *testFlow) RemoteEndpoint() naming.Endpoint { return nil }
func (f *testFlow) LocalID() security.PublicID { return security.FakePublicID("test") }
func (f *testFlow) RemoteID() security.PublicID { return security.FakePublicID("test") }
func (f *testFlow) SetReadDeadline(t time.Time) error { return nil }
diff --git a/runtimes/google/ipc/full_test.go b/runtimes/google/ipc/full_test.go
index 2db5072..5793780 100644
--- a/runtimes/google/ipc/full_test.go
+++ b/runtimes/google/ipc/full_test.go
@@ -126,54 +126,54 @@
return ipc.ReflectInvoker(t.server), testServerAuthorizer{}, nil
}
-// mountTable is a simple partial implementation of naming.MountTable. In
+// namespace is a simple partial implementation of naming.Namespace. In
// particular, it ignores TTLs and not allow fully overlapping mount names.
-type mountTable struct {
+type namespace struct {
sync.Mutex
mounts map[string][]string
}
-func newMountTable() naming.MountTable {
- return &mountTable{mounts: make(map[string][]string)}
+func newNamespace() naming.Namespace {
+ return &namespace{mounts: make(map[string][]string)}
}
-func (mt *mountTable) Mount(ctx context.T, name, server string, _ time.Duration) error {
- mt.Lock()
- defer mt.Unlock()
- for n, _ := range mt.mounts {
+func (ns *namespace) Mount(ctx context.T, name, server string, _ time.Duration) error {
+ ns.Lock()
+ defer ns.Unlock()
+ for n, _ := range ns.mounts {
if n != name && (strings.HasPrefix(name, n) || strings.HasPrefix(n, name)) {
return fmt.Errorf("simple mount table does not allow names that are a prefix of each other")
}
}
- mt.mounts[name] = append(mt.mounts[name], server)
+ ns.mounts[name] = append(ns.mounts[name], server)
return nil
}
-func (mt *mountTable) Unmount(ctx context.T, name, server string) error {
+func (ns *namespace) Unmount(ctx context.T, name, server string) error {
var servers []string
- mt.Lock()
- defer mt.Unlock()
- for _, s := range mt.mounts[name] {
+ ns.Lock()
+ defer ns.Unlock()
+ for _, s := range ns.mounts[name] {
// When server is "", we remove all servers under name.
if len(server) > 0 && s != server {
servers = append(servers, s)
}
}
if len(servers) > 0 {
- mt.mounts[name] = servers
+ ns.mounts[name] = servers
} else {
- delete(mt.mounts, name)
+ delete(ns.mounts, name)
}
return nil
}
-func (mt *mountTable) Resolve(ctx context.T, name string) ([]string, error) {
+func (ns *namespace) Resolve(ctx context.T, name string) ([]string, error) {
if address, _ := naming.SplitAddressName(name); len(address) > 0 {
return []string{name}, nil
}
- mt.Lock()
- defer mt.Unlock()
- for prefix, servers := range mt.mounts {
+ ns.Lock()
+ defer ns.Unlock()
+ for prefix, servers := range ns.mounts {
if strings.HasPrefix(name, prefix) {
suffix := strings.TrimLeft(strings.TrimPrefix(name, prefix), "/")
var ret []string
@@ -183,32 +183,32 @@
return ret, nil
}
}
- return nil, verror.NotFoundf("Resolve name %q not found in %v", name, mt.mounts)
+ return nil, verror.NotFoundf("Resolve name %q not found in %v", name, ns.mounts)
}
-func (mt *mountTable) ResolveToMountTable(ctx context.T, name string) ([]string, error) {
+func (ns *namespace) ResolveToMountTable(ctx context.T, name string) ([]string, error) {
panic("ResolveToMountTable not implemented")
return nil, nil
}
-func (mt *mountTable) Unresolve(ctx context.T, name string) ([]string, error) {
+func (ns *namespace) Unresolve(ctx context.T, name string) ([]string, error) {
panic("Unresolve not implemented")
return nil, nil
}
-func (mt *mountTable) Glob(ctx context.T, pattern string) (chan naming.MountEntry, error) {
+func (ns *namespace) Glob(ctx context.T, pattern string) (chan naming.MountEntry, error) {
panic("Glob not implemented")
return nil, nil
}
-func (mt *mountTable) SetRoots([]string) error {
+func (ns *namespace) SetRoots([]string) error {
panic("SetRoots not implemented")
return nil
}
-func startServer(t *testing.T, serverID security.PrivateID, sm stream.Manager, mt naming.MountTable, ts interface{}) ipc.Server {
+func startServer(t *testing.T, serverID security.PrivateID, sm stream.Manager, ns naming.Namespace, ts interface{}) ipc.Server {
vlog.VI(1).Info("InternalNewServer")
- server, err := InternalNewServer(InternalNewContext(), sm, mt, listenerID(serverID))
+ server, err := InternalNewServer(InternalNewContext(), sm, ns, listenerID(serverID))
if err != nil {
t.Errorf("InternalNewServer failed: %v", err)
}
@@ -228,57 +228,57 @@
return server
}
-func verifyMount(t *testing.T, mt naming.MountTable, name string) {
- if _, err := mt.Resolve(InternalNewContext(), name); err != nil {
+func verifyMount(t *testing.T, ns naming.Namespace, name string) {
+ if _, err := ns.Resolve(InternalNewContext(), name); err != nil {
t.Errorf("%s not found in mounttable", name)
}
}
-func verifyMountMissing(t *testing.T, mt naming.MountTable, name string) {
- if servers, err := mt.Resolve(InternalNewContext(), name); err == nil {
+func verifyMountMissing(t *testing.T, ns naming.Namespace, name string) {
+ if servers, err := ns.Resolve(InternalNewContext(), name); err == nil {
t.Errorf("%s not supposed to be found in mounttable; got %d servers instead", name, len(servers))
}
}
-func stopServer(t *testing.T, server ipc.Server, mt naming.MountTable) {
+func stopServer(t *testing.T, server ipc.Server, ns naming.Namespace) {
vlog.VI(1).Info("server.Stop")
- verifyMount(t, mt, "mountpoint/server")
+ verifyMount(t, ns, "mountpoint/server")
// Check that we can still publish.
server.Publish("should_appear_in_mt")
- verifyMount(t, mt, "should_appear_in_mt/server")
+ verifyMount(t, ns, "should_appear_in_mt/server")
if err := server.Stop(); err != nil {
t.Errorf("server.Stop failed: %v", err)
}
// Check that we can no longer publish after Stop.
server.Publish("should_not_appear_in_mt")
- verifyMountMissing(t, mt, "should_not_appear_in_mt/server")
+ verifyMountMissing(t, ns, "should_not_appear_in_mt/server")
- verifyMountMissing(t, mt, "mountpoint/server")
- verifyMountMissing(t, mt, "should_appear_in_mt/server")
- verifyMountMissing(t, mt, "should_not_appear_in_mt/server")
+ verifyMountMissing(t, ns, "mountpoint/server")
+ verifyMountMissing(t, ns, "should_appear_in_mt/server")
+ verifyMountMissing(t, ns, "should_not_appear_in_mt/server")
vlog.VI(1).Info("server.Stop DONE")
}
type bundle struct {
client ipc.Client
server ipc.Server
- mt naming.MountTable
+ ns naming.Namespace
sm stream.Manager
}
func (b bundle) cleanup(t *testing.T) {
- stopServer(t, b.server, b.mt)
+ stopServer(t, b.server, b.ns)
b.client.Close()
}
func createBundle(t *testing.T, clientID, serverID security.PrivateID, ts interface{}) (b bundle) {
b.sm = imanager.InternalNew(naming.FixedRoutingID(0x555555555))
- b.mt = newMountTable()
- b.server = startServer(t, serverID, b.sm, b.mt, ts)
+ b.ns = newNamespace()
+ b.server = startServer(t, serverID, b.sm, b.ns, ts)
var err error
- b.client, err = InternalNewClient(b.sm, b.mt, veyron2.LocalID(clientID))
+ b.client, err = InternalNewClient(b.sm, b.ns, veyron2.LocalID(clientID))
if err != nil {
t.Fatalf("InternalNewClient failed: %v", err)
}
@@ -351,21 +351,21 @@
}
// Servers and clients will be created per-test, use the same stream manager and mounttable.
mgr := imanager.InternalNew(naming.FixedRoutingID(0x1111111))
- mt := newMountTable()
+ ns := newNamespace()
for _, test := range tests {
name := fmt.Sprintf("(clientID:%q serverID:%q)", test.clientID, test.serverID)
- server := startServer(t, test.serverID, mgr, mt, &testServer{})
- client, err := InternalNewClient(mgr, mt, veyron2.LocalID(test.clientID))
+ server := startServer(t, test.serverID, mgr, ns, &testServer{})
+ client, err := InternalNewClient(mgr, ns, veyron2.LocalID(test.clientID))
if err != nil {
t.Errorf("%s: Client creation failed: %v", name, err)
- stopServer(t, server, mt)
+ stopServer(t, server, ns)
continue
}
if _, err := client.StartCall(&fakeContext{}, "mountpoint/server/suffix", "irrelevant", nil, veyron2.RemoteID(test.pattern)); !matchesErrorPattern(err, test.err) {
t.Errorf(`%s: client.StartCall: got error "%v", want to match "%v"`, name, err, test.err)
}
client.Close()
- stopServer(t, server, mt)
+ stopServer(t, server, ns)
}
}
@@ -562,7 +562,7 @@
b := createBundle(t, nil, serverID, &testServer{})
defer b.cleanup(t)
for _, test := range tests {
- client, err := InternalNewClient(b.sm, b.mt, veyron2.LocalID(test.clientID))
+ client, err := InternalNewClient(b.sm, b.ns, veyron2.LocalID(test.clientID))
if err != nil {
t.Fatalf("InternalNewClient failed: %v", err)
}
@@ -724,7 +724,7 @@
defer b.cleanup(t)
// Publish some incompatible endpoints.
- publisher := publisher.New(InternalNewContext(), b.mt, publishPeriod)
+ publisher := publisher.New(InternalNewContext(), b.ns, publishPeriod)
defer publisher.WaitForStop()
defer publisher.Stop()
publisher.AddName("incompatible")
@@ -757,7 +757,7 @@
// a server publishes its endpoints have the right effect.
func TestPublishOptions(t *testing.T) {
sm := imanager.InternalNew(naming.FixedRoutingID(0x555555555))
- mt := newMountTable()
+ ns := newNamespace()
cases := []struct {
opts []ipc.ServerOpt
expect []string
@@ -769,7 +769,7 @@
{[]ipc.ServerOpt{veyron2.PublishFirst, veyron2.EndpointRewriteOpt("example.com")}, []string{"example.com"}},
}
for i, c := range cases {
- server, err := InternalNewServer(InternalNewContext(), sm, mt, append([]ipc.ServerOpt{listenerID(serverID)}, c.opts...)...)
+ server, err := InternalNewServer(InternalNewContext(), sm, ns, append([]ipc.ServerOpt{listenerID(serverID)}, c.opts...)...)
if err != nil {
t.Errorf("InternalNewServer failed: %v", err)
continue
@@ -789,7 +789,7 @@
server.Stop()
continue
}
- servers, err := mt.Resolve(InternalNewContext(), "mountpoint")
+ servers, err := ns.Resolve(InternalNewContext(), "mountpoint")
if err != nil {
t.Errorf("mountpoint not found in mounttable")
server.Stop()
@@ -869,7 +869,7 @@
}
type proxyHandle struct {
- MT naming.MountTable
+ ns naming.Namespace
process *blackbox.Child
mount string
}
@@ -881,7 +881,7 @@
if h.mount, err = h.process.ReadLineFromChild(); err != nil {
return err
}
- if err := h.MT.Mount(&fakeContext{}, "proxy", h.mount, time.Hour); err != nil {
+ if err := h.ns.Mount(&fakeContext{}, "proxy", h.mount, time.Hour); err != nil {
return err
}
return nil
@@ -896,18 +896,18 @@
if len(h.mount) == 0 {
return nil
}
- return h.MT.Unmount(&fakeContext{}, "proxy", h.mount)
+ return h.ns.Unmount(&fakeContext{}, "proxy", h.mount)
}
func TestProxy(t *testing.T) {
sm := imanager.InternalNew(naming.FixedRoutingID(0x555555555))
- mt := newMountTable()
- client, err := InternalNewClient(sm, mt, veyron2.LocalID(clientID))
+ ns := newNamespace()
+ client, err := InternalNewClient(sm, ns, veyron2.LocalID(clientID))
if err != nil {
t.Fatal(err)
}
defer client.Close()
- server, err := InternalNewServer(InternalNewContext(), sm, mt, listenerID(serverID))
+ server, err := InternalNewServer(InternalNewContext(), sm, ns, listenerID(serverID))
if err != nil {
t.Fatal(err)
}
@@ -928,7 +928,7 @@
}
return result, nil
}
- proxy := &proxyHandle{MT: mt}
+ proxy := &proxyHandle{ns: ns}
if err := proxy.Start(t); err != nil {
t.Fatal(err)
}
@@ -939,7 +939,7 @@
if err := server.Publish("mountpoint"); err != nil {
t.Fatal(err)
}
- verifyMount(t, mt, name)
+ verifyMount(t, ns, name)
// Proxied endpoint should be published and RPC should succeed (through proxy)
const expected = `method:"Echo",suffix:"suffix",arg:"batman"`
if result, err := makeCall(); result != expected || err != nil {
@@ -954,11 +954,11 @@
t.Fatalf(`Got (%v, %v) want ("", <non-nil>) as proxy is down`, result, err)
}
for {
- if _, err := mt.Resolve(InternalNewContext(), name); err != nil {
+ if _, err := ns.Resolve(InternalNewContext(), name); err != nil {
break
}
}
- verifyMountMissing(t, mt, name)
+ verifyMountMissing(t, ns, name)
// Proxy restarts, calls should eventually start succeeding.
if err := proxy.Start(t); err != nil {
@@ -989,10 +989,10 @@
func runServer(argv []string) {
mgr := imanager.InternalNew(naming.FixedRoutingID(0x1111111))
- mt := newMountTable()
+ ns := newNamespace()
id := loadIdentityFromFile(argv[1])
isecurity.TrustIdentityProviders(id)
- server, err := InternalNewServer(InternalNewContext(), mgr, mt, listenerID(id))
+ server, err := InternalNewServer(InternalNewContext(), mgr, ns, listenerID(id))
if err != nil {
vlog.Fatalf("InternalNewServer failed: %v", err)
}
diff --git a/runtimes/google/ipc/server.go b/runtimes/google/ipc/server.go
index 5cf77d8..f1c8718 100644
--- a/runtimes/google/ipc/server.go
+++ b/runtimes/google/ipc/server.go
@@ -3,7 +3,6 @@
import (
"fmt"
"io"
- "net"
"reflect"
"strings"
"sync"
@@ -44,21 +43,21 @@
active sync.WaitGroup // active goroutines we've spawned.
stopped bool // whether the server has been stopped.
stoppedChan chan struct{} // closed when the server has been stopped.
- mt naming.MountTable
+ ns naming.Namespace
publishOpt veyron2.ServerPublishOpt // which endpoints to publish
publishing bool // is some name being published?
servesMountTable bool
}
-func InternalNewServer(ctx context.T, streamMgr stream.Manager, mt naming.MountTable, opts ...ipc.ServerOpt) (ipc.Server, error) {
+func InternalNewServer(ctx context.T, streamMgr stream.Manager, ns naming.Namespace, opts ...ipc.ServerOpt) (ipc.Server, error) {
s := &server{
ctx: ctx,
streamMgr: streamMgr,
disptrie: newDisptrie(),
- publisher: publisher.New(ctx, mt, publishPeriod),
+ publisher: publisher.New(ctx, ns, publishPeriod),
listeners: make(map[stream.Listener]bool),
stoppedChan: make(chan struct{}),
- mt: mt,
+ ns: ns,
}
for _, opt := range opts {
switch opt := opt.(type) {
@@ -98,10 +97,10 @@
if _, err := inaming.NewEndpoint(address); err == nil {
return address
}
- if s.mt == nil {
+ if s.ns == nil {
return address
}
- names, err := s.mt.Resolve(s.ctx, address)
+ names, err := s.ns.Resolve(s.ctx, address)
if err != nil {
return address
}
@@ -574,8 +573,8 @@
func (fs *flowServer) RemoteID() security.PublicID { return fs.authorizedRemoteID }
func (fs *flowServer) Deadline() time.Time { return fs.deadline }
func (fs *flowServer) Blessing() security.PublicID { return fs.blessing }
-func (fs *flowServer) LocalAddr() net.Addr { return fs.flow.LocalAddr() }
-func (fs *flowServer) RemoteAddr() net.Addr { return fs.flow.RemoteAddr() }
+func (fs *flowServer) LocalEndpoint() naming.Endpoint { return fs.flow.LocalEndpoint() }
+func (fs *flowServer) RemoteEndpoint() naming.Endpoint { return fs.flow.RemoteEndpoint() }
func (fs *flowServer) IsClosed() bool {
return fs.flow.IsClosed()
diff --git a/runtimes/google/ipc/stream/vc/flow.go b/runtimes/google/ipc/stream/vc/flow.go
index 9a9112e..ccad460 100644
--- a/runtimes/google/ipc/stream/vc/flow.go
+++ b/runtimes/google/ipc/stream/vc/flow.go
@@ -4,6 +4,7 @@
"net"
"time"
+ "veyron2/naming"
"veyron2/security"
)
@@ -11,7 +12,7 @@
idHolder
*reader
*writer
- laddr, raddr net.Addr
+ localEndpoint, remoteEndpoint naming.Endpoint
}
type idHolder interface {
@@ -19,8 +20,12 @@
RemoteID() security.PublicID
}
-func (f *flow) LocalAddr() net.Addr { return f.laddr }
-func (f *flow) RemoteAddr() net.Addr { return f.raddr }
+func (f *flow) LocalEndpoint() naming.Endpoint { return f.localEndpoint }
+func (f *flow) RemoteEndpoint() naming.Endpoint { return f.remoteEndpoint }
+
+// implement net.Conn
+func (f *flow) LocalAddr() net.Addr { return f.localEndpoint }
+func (f *flow) RemoteAddr() net.Addr { return f.remoteEndpoint }
func (f *flow) Close() error {
f.reader.Close()
f.writer.Close()
diff --git a/runtimes/google/ipc/stream/vc/listener_test.go b/runtimes/google/ipc/stream/vc/listener_test.go
index 269c366..a449242 100644
--- a/runtimes/google/ipc/stream/vc/listener_test.go
+++ b/runtimes/google/ipc/stream/vc/listener_test.go
@@ -5,6 +5,7 @@
"testing"
"time"
+ "veyron2/naming"
"veyron2/security"
)
@@ -17,6 +18,8 @@
func (*noopFlow) IsClosed() bool { return false }
func (*noopFlow) Closed() <-chan struct{} { return nil }
func (*noopFlow) Cancel() {}
+func (*noopFlow) LocalEndpoint() naming.Endpoint { return nil }
+func (*noopFlow) RemoteEndpoint() naming.Endpoint { return nil }
func (*noopFlow) LocalAddr() net.Addr { return nil }
func (*noopFlow) RemoteAddr() net.Addr { return nil }
func (*noopFlow) SetDeadline(t time.Time) error { return nil }
diff --git a/runtimes/google/ipc/stream/vc/vc.go b/runtimes/google/ipc/stream/vc/vc.go
index f213412..09d719d 100644
--- a/runtimes/google/ipc/stream/vc/vc.go
+++ b/runtimes/google/ipc/stream/vc/vc.go
@@ -154,11 +154,11 @@
return nil, fmt.Errorf("failed to create writer for Flow: %v", err)
}
f := &flow{
- idHolder: vc,
- reader: newReader(readHandlerImpl{vc, fid}),
- writer: writer,
- laddr: vc.localEP,
- raddr: vc.remoteEP,
+ idHolder: vc,
+ reader: newReader(readHandlerImpl{vc, fid}),
+ writer: writer,
+ localEndpoint: vc.localEP,
+ remoteEndpoint: vc.remoteEP,
}
vc.mu.Lock()
if vc.flowMap != nil {
@@ -257,11 +257,11 @@
return fmt.Errorf("failed to create writer for new flow(%d): %v", fid, err)
}
f := &flow{
- idHolder: vc,
- reader: newReader(readHandlerImpl{vc, fid}),
- writer: writer,
- laddr: vc.localEP,
- raddr: vc.remoteEP,
+ idHolder: vc,
+ reader: newReader(readHandlerImpl{vc, fid}),
+ writer: writer,
+ localEndpoint: vc.localEP,
+ remoteEndpoint: vc.remoteEP,
}
if err = vc.listener.Enqueue(f); err != nil {
f.Shutdown()
diff --git a/runtimes/google/lib/functional/rb/rb_set_test.go b/runtimes/google/lib/functional/rb/rb_set_test.go
index 99a8c51..42172a6 100644
--- a/runtimes/google/lib/functional/rb/rb_set_test.go
+++ b/runtimes/google/lib/functional/rb/rb_set_test.go
@@ -158,8 +158,9 @@
// Randomized add and remove.
func TestRandom(t *testing.T) {
- seed := rand.NewSource(time.Now().UnixNano())
- log.Printf("Random seed: %d", seed)
+ now := time.Now().UnixNano()
+ log.Printf("value used to seed rand: %v", now)
+ seed := rand.NewSource(now)
rnd := rand.New(seed)
s := NewSet(intCompare)
elements := make(map[int]struct{})
@@ -274,8 +275,9 @@
}
func TestRandomMap(t *testing.T) {
- seed := rand.NewSource(time.Now().UnixNano())
- log.Printf("Random seed: %d", seed)
+ now := time.Now().UnixNano()
+ log.Printf("value used to seed rand: %v", now)
+ seed := rand.NewSource(now)
rnd := rand.New(seed)
s := NewSet(entryLessThan)
elements := make(map[int]interface{})
diff --git a/runtimes/google/lib/publisher/publisher.go b/runtimes/google/lib/publisher/publisher.go
index e86d232..77eab43 100644
--- a/runtimes/google/lib/publisher/publisher.go
+++ b/runtimes/google/lib/publisher/publisher.go
@@ -65,13 +65,13 @@
type publishedCmd chan []string // published names are sent when cmd is done
-// New returns a new publisher that updates mounts on mt every period.
-func New(ctx context.T, mt naming.MountTable, period time.Duration) Publisher {
+// New returns a new publisher that updates mounts on ns every period.
+func New(ctx context.T, ns naming.Namespace, period time.Duration) Publisher {
p := &publisher{
cmdchan: make(chan interface{}, 10),
donechan: make(chan struct{}),
}
- go p.runLoop(ctx, mt, period)
+ go p.runLoop(ctx, ns, period)
return p
}
@@ -136,9 +136,9 @@
<-p.donechan
}
-func (p *publisher) runLoop(ctx context.T, mt naming.MountTable, period time.Duration) {
+func (p *publisher) runLoop(ctx context.T, ns naming.Namespace, period time.Duration) {
vlog.VI(1).Info("ipc pub: start runLoop")
- state := newPubState(ctx, mt, period)
+ state := newPubState(ctx, ns, period)
for {
select {
case cmd, ok := <-p.cmdchan:
@@ -178,7 +178,7 @@
// it's only used in the sequential publisher runLoop.
type pubState struct {
ctx context.T
- mt naming.MountTable
+ ns naming.Namespace
period time.Duration
deadline time.Time // deadline for the next sync call
names []string // names that have been added
@@ -198,9 +198,10 @@
lastUnmountErr error
}
-func newPubState(ctx context.T, mt naming.MountTable, period time.Duration) *pubState {
+func newPubState(ctx context.T, ns naming.Namespace, period time.Duration) *pubState {
return &pubState{
- mt: mt,
+ ctx: ctx,
+ ns: ns,
period: period,
deadline: time.Now().Add(period),
servers: make(map[string]bool),
@@ -259,7 +260,7 @@
// to sync will occur within the next period, and refresh all mounts.
ttl := ps.period + mountTTLSlack
status.lastMount = time.Now()
- status.lastMountErr = ps.mt.Mount(ps.ctx, name, server, ttl)
+ status.lastMountErr = ps.ns.Mount(ps.ctx, name, server, ttl)
if status.lastMountErr != nil {
vlog.Errorf("ipc pub: couldn't mount(%v, %v, %v): %v", name, server, ttl, status.lastMountErr)
} else {
@@ -281,7 +282,7 @@
func (ps *pubState) unmount(name, server string, status *mountStatus) {
status.lastUnmount = time.Now()
- status.lastUnmountErr = ps.mt.Unmount(ps.ctx, name, server)
+ status.lastUnmountErr = ps.ns.Unmount(ps.ctx, name, server)
if status.lastUnmountErr != nil {
vlog.Errorf("ipc pub: couldn't unmount(%v, %v): %v", name, server, status.lastUnmountErr)
} else {
@@ -299,7 +300,7 @@
func (ps *pubState) published() []string {
var ret []string
for _, name := range ps.names {
- mtServers, err := ps.mt.ResolveToMountTable(ps.ctx, name)
+ mtServers, err := ps.ns.ResolveToMountTable(ps.ctx, name)
if err != nil {
vlog.Errorf("ipc pub: couldn't resolve %v to mount table: %v", name, err)
continue
diff --git a/runtimes/google/naming/mounttable/all_test.go b/runtimes/google/naming/namespace/all_test.go
similarity index 91%
rename from runtimes/google/naming/mounttable/all_test.go
rename to runtimes/google/naming/namespace/all_test.go
index f34fd27..a628069 100644
--- a/runtimes/google/naming/mounttable/all_test.go
+++ b/runtimes/google/naming/namespace/all_test.go
@@ -1,4 +1,4 @@
-package mounttable_test
+package namespace_test
import (
"runtime/debug"
@@ -6,7 +6,7 @@
"time"
_ "veyron/lib/testutil"
- "veyron/runtimes/google/naming/mounttable"
+ "veyron/runtimes/google/naming/namespace"
service "veyron/services/mounttable/lib"
"veyron2"
@@ -22,10 +22,10 @@
t.Fatal(string(debug.Stack()))
}
-func doGlob(t *testing.T, ctx context.T, mt naming.MountTable, pattern string) []string {
+func doGlob(t *testing.T, ctx context.T, ns naming.Namespace, pattern string) []string {
var replies []string
- rc, err := mt.Glob(ctx, pattern)
+ rc, err := ns.Glob(ctx, pattern)
if err != nil {
boom(t, "Glob(%s): %s", pattern, err)
}
@@ -80,11 +80,11 @@
func TestBadRoots(t *testing.T) {
r, _ := rt.New()
- if _, err := mounttable.New(r); err != nil {
- t.Errorf("mounttable.New should not have failed with no roots")
+ if _, err := namespace.New(r); err != nil {
+ t.Errorf("namespace.New should not have failed with no roots")
}
- if _, err := mounttable.New(r, "not a rooted name"); err == nil {
- t.Errorf("mounttable.New should have failed with an unrooted name")
+ if _, err := namespace.New(r, "not a rooted name"); err == nil {
+ t.Errorf("namespace.New should have failed with an unrooted name")
}
}
@@ -96,7 +96,7 @@
mt5Prefix = "mt5"
)
-func testResolveToMountTable(t *testing.T, ctx context.T, mt naming.MountTable, name, want string) {
+func testResolveToMountTable(t *testing.T, ctx context.T, mt naming.Namespace, name, want string) {
servers, err := mt.ResolveToMountTable(ctx, name)
if err != nil {
boom(t, "Failed to ResolveToMountTable %q: %s", name, err)
@@ -106,7 +106,7 @@
}
}
-func testResolve(t *testing.T, ctx context.T, mt naming.MountTable, name, want string) {
+func testResolve(t *testing.T, ctx context.T, mt naming.Namespace, name, want string) {
servers, err := mt.Resolve(ctx, name)
if err != nil {
boom(t, "Failed to Resolve %q: %s", name, err)
@@ -185,14 +185,14 @@
estr := ep.String()
// Run a client, creating a new runtime for it and intializing its
- // MountTable root to point to the server created above on /<ep>/mt1.
- // This means that any relative names mounted using this local MountTable
+ // namespace root to point to the server created above on /<ep>/mt1.
+ // This means that any relative names mounted using this local namespace
// will appear below mt1.
- r, err := rt.New(veyron2.MountTableRoots([]string{naming.JoinAddressName(estr, mt1Prefix)}))
+ r, err := rt.New(veyron2.NamespaceRoots([]string{naming.JoinAddressName(estr, mt1Prefix)}))
if err != nil {
boom(t, "Failed to create client runtime: %s", err)
}
- mt := r.MountTable()
+ mt := r.Namespace()
ctx := r.NewContext()
@@ -284,13 +284,13 @@
boom(t, "Should have failed to mt3/mt4/mt5")
}
- // Resolving m3/mt4/mt5 to a MountTable using the local MountTable gives
+ // Resolving m3/mt4/mt5 to a MountTable using the local namepsace gives
// us /<estr>//mt4/mt5.
testResolveToMountTable(t, ctx, mt, "mt3/mt4/mt5", naming.JoinAddressName(estr, "//mt4/mt5"))
testResolveToMountTable(t, ctx, mt, "mt3/mt4//mt5", naming.JoinAddressName(estr, "//mt4//mt5"))
- // But looking up mt4/mt5 in the local MountTable will give us
- // /<estr>//mt1/mt4/mt5 since the localMountTable has mt1 as its root!
+ // But looking up mt4/mt5 in the local namespace will give us
+ // /<estr>//mt1/mt4/mt5 since the local namespace has mt1 as its root!
testResolveToMountTable(t, ctx, mt, "mt4/mt5", naming.JoinAddressName(estr, "//mt1/mt4/mt5"))
// Looking mt3//mt4/mt5 will return the MountTable that serves //mt4/mt5.
diff --git a/runtimes/google/naming/mounttable/glob.go b/runtimes/google/naming/namespace/glob.go
similarity index 99%
rename from runtimes/google/naming/mounttable/glob.go
rename to runtimes/google/naming/namespace/glob.go
index 29ae756..e6071a8 100644
--- a/runtimes/google/naming/mounttable/glob.go
+++ b/runtimes/google/naming/namespace/glob.go
@@ -1,4 +1,4 @@
-package mounttable
+package namespace
import (
"container/list"
diff --git a/runtimes/google/naming/mounttable/glob_test.go b/runtimes/google/naming/namespace/glob_test.go
similarity index 95%
rename from runtimes/google/naming/mounttable/glob_test.go
rename to runtimes/google/naming/namespace/glob_test.go
index 38a2f81..790b459 100644
--- a/runtimes/google/naming/mounttable/glob_test.go
+++ b/runtimes/google/naming/namespace/glob_test.go
@@ -1,4 +1,4 @@
-package mounttable
+package namespace
import (
"testing"
diff --git a/runtimes/google/naming/mounttable/mount.go b/runtimes/google/naming/namespace/mount.go
similarity index 98%
rename from runtimes/google/naming/mounttable/mount.go
rename to runtimes/google/naming/namespace/mount.go
index f35f045..721ef85 100644
--- a/runtimes/google/naming/mounttable/mount.go
+++ b/runtimes/google/naming/namespace/mount.go
@@ -1,4 +1,4 @@
-package mounttable
+package namespace
import (
"time"
diff --git a/runtimes/google/naming/mounttable/namespace.go b/runtimes/google/naming/namespace/namespace.go
similarity index 98%
rename from runtimes/google/naming/mounttable/namespace.go
rename to runtimes/google/naming/namespace/namespace.go
index 6de47ad..92c486c 100644
--- a/runtimes/google/naming/mounttable/namespace.go
+++ b/runtimes/google/naming/namespace/namespace.go
@@ -1,4 +1,4 @@
-package mounttable
+package namespace
import (
"sync"
diff --git a/runtimes/google/naming/mounttable/resolve.go b/runtimes/google/naming/namespace/resolve.go
similarity index 99%
rename from runtimes/google/naming/mounttable/resolve.go
rename to runtimes/google/naming/namespace/resolve.go
index 365325d..92fc6f0 100644
--- a/runtimes/google/naming/mounttable/resolve.go
+++ b/runtimes/google/naming/namespace/resolve.go
@@ -1,4 +1,4 @@
-package mounttable
+package namespace
import (
"errors"
diff --git a/runtimes/google/naming/mounttable/stub.go b/runtimes/google/naming/namespace/stub.go
similarity index 96%
rename from runtimes/google/naming/mounttable/stub.go
rename to runtimes/google/naming/namespace/stub.go
index 697aa7e..9661cae 100644
--- a/runtimes/google/naming/mounttable/stub.go
+++ b/runtimes/google/naming/namespace/stub.go
@@ -1,4 +1,4 @@
-package mounttable
+package namespace
// This file defines data types that are also defined in the idl for the
// mounttable. We live with the duplication here to avoid having to depend
diff --git a/runtimes/google/rt/ipc.go b/runtimes/google/rt/ipc.go
index 417f861..aaa4d11 100644
--- a/runtimes/google/rt/ipc.go
+++ b/runtimes/google/rt/ipc.go
@@ -13,15 +13,15 @@
func (rt *vrt) NewClient(opts ...ipc.ClientOpt) (ipc.Client, error) {
sm := rt.sm
- mt := rt.mt
+ ns := rt.ns
cIDOpt := veyron2.LocalID(rt.id.Identity())
var otherOpts []ipc.ClientOpt
for _, opt := range opts {
switch topt := opt.(type) {
case veyron2.StreamManagerOpt:
sm = topt.Manager
- case veyron2.MountTableOpt:
- mt = topt.MountTable
+ case veyron2.NamespaceOpt:
+ ns = topt.Namespace
case veyron2.LocalIDOpt:
cIDOpt = topt
default:
@@ -31,7 +31,7 @@
if cIDOpt.PrivateID != nil {
otherOpts = append(otherOpts, cIDOpt)
}
- return iipc.InternalNewClient(sm, mt, otherOpts...)
+ return iipc.InternalNewClient(sm, ns, otherOpts...)
}
func (rt *vrt) Client() ipc.Client {
@@ -51,14 +51,14 @@
rt.startHTTPDebugServerOnce()
sm := rt.sm
- mt := rt.mt
+ ns := rt.ns
var otherOpts []ipc.ServerOpt
for _, opt := range opts {
switch topt := opt.(type) {
case veyron2.StreamManagerOpt:
sm = topt
- case veyron2.MountTableOpt:
- mt = topt
+ case veyron2.NamespaceOpt:
+ ns = topt
default:
otherOpts = append(otherOpts, opt)
}
@@ -67,7 +67,7 @@
otherOpts = append(otherOpts, rt.id)
ctx := rt.NewContext()
- return iipc.InternalNewServer(ctx, sm, mt, otherOpts...)
+ return iipc.InternalNewServer(ctx, sm, ns, otherOpts...)
}
func (rt *vrt) NewStreamManager(opts ...stream.ManagerOpt) (stream.Manager, error) {
diff --git a/runtimes/google/rt/mgmt.go b/runtimes/google/rt/mgmt.go
index 9b4757f..b95ac37 100644
--- a/runtimes/google/rt/mgmt.go
+++ b/runtimes/google/rt/mgmt.go
@@ -9,7 +9,9 @@
type mgmtImpl struct {
sync.RWMutex
- waiters []chan<- string
+ waiters []chan<- string
+ taskTrackers []chan<- veyron2.Task
+ task veyron2.Task
}
func (rt *vrt) Stop() {
@@ -35,3 +37,36 @@
defer rt.mgmt.Unlock()
rt.mgmt.waiters = append(rt.mgmt.waiters, ch)
}
+
+func (rt *vrt) TrackTask(ch chan<- veyron2.Task) {
+ rt.mgmt.Lock()
+ defer rt.mgmt.Unlock()
+ rt.mgmt.taskTrackers = append(rt.mgmt.taskTrackers, ch)
+}
+
+func (rt *vrt) advanceTask(progress, goal int) {
+ rt.mgmt.Lock()
+ defer rt.mgmt.Unlock()
+ rt.mgmt.task.Goal += goal
+ rt.mgmt.task.Progress += progress
+ for _, pl := range rt.mgmt.taskTrackers {
+ select {
+ case pl <- rt.mgmt.task:
+ default:
+ }
+ }
+}
+
+func (rt *vrt) AdvanceGoal(delta int) {
+ if delta <= 0 {
+ return
+ }
+ rt.advanceTask(0, delta)
+}
+
+func (rt *vrt) AdvanceProgress(delta int) {
+ if delta <= 0 {
+ return
+ }
+ rt.advanceTask(delta, 0)
+}
diff --git a/runtimes/google/rt/mgmt_test.go b/runtimes/google/rt/mgmt_test.go
index bcad19d..b3a48a9 100644
--- a/runtimes/google/rt/mgmt_test.go
+++ b/runtimes/google/rt/mgmt_test.go
@@ -3,6 +3,7 @@
import (
"fmt"
"os"
+ "reflect"
"testing"
"veyron2"
@@ -116,3 +117,71 @@
c.CloseStdin()
c.ExpectEOFAndWaitForExitCode(fmt.Errorf("exit status %d", veyron2.ForceStopExitCode))
}
+
+func checkProgress(t *testing.T, ch <-chan veyron2.Task, progress, goal int) {
+ if want, got := (veyron2.Task{progress, goal}), <-ch; !reflect.DeepEqual(want, got) {
+ t.Errorf("Unexpected progress: want %+v, got %+v", want, got)
+ }
+}
+
+func checkNoProgress(t *testing.T, ch <-chan veyron2.Task) {
+ select {
+ case p := <-ch:
+ t.Errorf("channel expected to be empty, got %+v instead", p)
+ default:
+ }
+}
+
+// TestProgress verifies that the ticker update/track logic works for a single
+// tracker.
+func TestProgress(t *testing.T) {
+ m, _ := rt.New()
+ m.AdvanceGoal(50)
+ ch := make(chan veyron2.Task, 1)
+ m.TrackTask(ch)
+ checkNoProgress(t, ch)
+ m.AdvanceProgress(10)
+ checkProgress(t, ch, 10, 50)
+ checkNoProgress(t, ch)
+ m.AdvanceProgress(5)
+ checkProgress(t, ch, 15, 50)
+ m.AdvanceGoal(50)
+ checkProgress(t, ch, 15, 100)
+ m.AdvanceProgress(1)
+ checkProgress(t, ch, 16, 100)
+ m.AdvanceGoal(10)
+ checkProgress(t, ch, 16, 110)
+ m.AdvanceProgress(-13)
+ checkNoProgress(t, ch)
+ m.AdvanceGoal(0)
+ checkNoProgress(t, ch)
+}
+
+// TestProgressMultipleTrackers verifies that the ticker update/track logic
+// works for more than one tracker. It also ensures that the runtime doesn't
+// block when the tracker channels are full.
+func TestProgressMultipleTrackers(t *testing.T) {
+ m, _ := rt.New()
+ // ch1 is 1-buffered, ch2 is 2-buffered.
+ ch1, ch2 := make(chan veyron2.Task, 1), make(chan veyron2.Task, 2)
+ m.TrackTask(ch1)
+ m.TrackTask(ch2)
+ checkNoProgress(t, ch1)
+ checkNoProgress(t, ch2)
+ m.AdvanceProgress(1)
+ checkProgress(t, ch1, 1, 0)
+ checkNoProgress(t, ch1)
+ checkProgress(t, ch2, 1, 0)
+ checkNoProgress(t, ch2)
+ for i := 0; i < 10; i++ {
+ m.AdvanceProgress(1)
+ }
+ checkProgress(t, ch1, 2, 0)
+ checkNoProgress(t, ch1)
+ checkProgress(t, ch2, 2, 0)
+ checkProgress(t, ch2, 3, 0)
+ checkNoProgress(t, ch2)
+ m.AdvanceGoal(4)
+ checkProgress(t, ch1, 11, 4)
+ checkProgress(t, ch2, 11, 4)
+}
diff --git a/runtimes/google/rt/naming.go b/runtimes/google/rt/naming.go
index a865856..00141a2 100644
--- a/runtimes/google/rt/naming.go
+++ b/runtimes/google/rt/naming.go
@@ -9,6 +9,6 @@
return inaming.NewEndpoint(ep)
}
-func (rt *vrt) MountTable() naming.MountTable {
- return rt.mt
+func (rt *vrt) Namespace() naming.Namespace {
+ return rt.ns
}
diff --git a/runtimes/google/rt/rt.go b/runtimes/google/rt/rt.go
index 8c3c18f..b8fbe63 100644
--- a/runtimes/google/rt/rt.go
+++ b/runtimes/google/rt/rt.go
@@ -7,7 +7,7 @@
"sync"
"veyron/lib/exec"
- imounttable "veyron/runtimes/google/naming/mounttable"
+ "veyron/runtimes/google/naming/namespace"
"veyron2"
"veyron2/ipc"
@@ -21,7 +21,7 @@
product product.T
httpServer string
sm stream.Manager
- mt naming.MountTable
+ ns naming.Namespace
rid naming.RoutingID
signals chan os.Signal
id *currentIDOpt
@@ -65,7 +65,7 @@
// warnings and to provide a modicum of security.
rt.httpServer = "127.0.0.1:0"
rt.id = ¤tIDOpt{}
- mtRoots := []string{}
+ nsRoots := []string{}
for _, o := range opts {
switch v := o.(type) {
@@ -73,8 +73,8 @@
rt.id.setIdentity(v.PrivateID)
case veyron2.ProductOpt:
rt.product = v.T
- case veyron2.MountTableRoots:
- mtRoots = v
+ case veyron2.NamespaceRoots:
+ nsRoots = v
case veyron2.HTTPDebugOpt:
rt.httpServer = string(v)
default:
@@ -93,18 +93,25 @@
rt.product = product
}
- if len(mtRoots) == 0 {
- if mtRoot := os.Getenv("MOUNTTABLE_ROOT"); mtRoot != "" {
- mtRoots = append(mtRoots, mtRoot)
+ if len(nsRoots) == 0 {
+ // TODO(cnicolaou,caprita): remove this when NAMESPACE_ROOT is in use.
+ if nsRoot := os.Getenv("MOUNTTABLE_ROOT"); nsRoot != "" {
+ nsRoots = append(nsRoots, nsRoot)
}
+ // TODO(cnicolaou,caprita): rename this to NAMESPACE_ROOT.
+ if nsRoot := os.Getenv("NAMESPACE_ROOT"); nsRoot != "" {
+ nsRoots = append(nsRoots, nsRoot)
+ }
+ // TODO(cnicolaou,caprita): decide if want to allow NAMESPACE_ROOTS
+ // e.g. comma separated list of roots.
}
- if mt, err := imounttable.New(rt, mtRoots...); err != nil {
+ if ns, err := namespace.New(rt, nsRoots...); err != nil {
return fmt.Errorf("Couldn't create mount table: %v", err)
} else {
- rt.mt = mt
+ rt.ns = ns
}
- vlog.VI(2).Infof("MountTable Roots: %s", mtRoots)
+ vlog.VI(2).Infof("Namespace Roots: %s", nsRoots)
var err error
if rt.sm, err = rt.NewStreamManager(); err != nil {
diff --git a/runtimes/google/security/util.go b/runtimes/google/security/util.go
index be2c7a2..754a5f8 100644
--- a/runtimes/google/security/util.go
+++ b/runtimes/google/security/util.go
@@ -7,6 +7,7 @@
"strings"
"veyron/runtimes/google/security/keys"
+ "veyron2/naming"
"veyron2/security"
"veyron2/security/wire"
)
@@ -91,6 +92,8 @@
Suffix string
// Label is the security label of the method being invoked.
Label security.Label
+ // LocalEndpoint, RemoteEndpoint are the veyron endpoints of the local and remote ends of a request
+ LocalEndpoint, RemoteEndpoint naming.Endpoint
}
// context implements security.Context. This implementation simply stores the
@@ -141,6 +144,8 @@
func (c *context) CaveatDischarges() security.CaveatDischargeMap { return c.ContextArgs.Discharges }
func (c *context) LocalID() security.PublicID { return c.ContextArgs.LocalID }
func (c *context) RemoteID() security.PublicID { return c.ContextArgs.RemoteID }
+func (c *context) LocalEndpoint() naming.Endpoint { return c.ContextArgs.LocalEndpoint }
+func (c *context) RemoteEndpoint() naming.Endpoint { return c.ContextArgs.RemoteEndpoint }
// NewContext returns a new security.Context for the provided method, name,
// suffix, discharges, label and identities of the local and remote principals
diff --git a/runtimes/google/vsync/dag.go b/runtimes/google/vsync/dag.go
index 9b47cc9..ac1a342 100644
--- a/runtimes/google/vsync/dag.go
+++ b/runtimes/google/vsync/dag.go
@@ -97,6 +97,7 @@
"fmt"
"veyron2/storage"
+ "veyron2/vlog"
)
type dag struct {
@@ -114,9 +115,9 @@
}
type graftInfo struct {
- newNodes map[storage.Version]bool // set of newly added nodes during a sync
- graftNodes map[storage.Version]uint64 // set of graft nodes and their level
- newHead storage.Version // new (pending) head node
+ newNodes map[storage.Version]struct{} // set of newly added nodes during a sync
+ graftNodes map[storage.Version]uint64 // set of graft nodes and their level
+ newHeads map[storage.Version]struct{} // set of candidate new head nodes
}
// openDAG opens or creates a DAG for the given filename.
@@ -177,6 +178,46 @@
}
}
+// getObjectGraft returns the graft structure for an object ID.
+// The graftInfo struct for an object is ephemeral (in-memory) and it
+// tracks the following information:
+// - newNodes: the set of newly added nodes used to detect the type of
+// edges between nodes (new-node to old-node or vice versa).
+// - newHeads: the set of new candidate head nodes used to detect conflicts.
+// - graftNodes: the set of nodes used to find common ancestors between
+// conflicting nodes.
+//
+// After the received Sync logs are applied, if there are two new heads in
+// the newHeads set, there is a conflict to be resolved for this object.
+// Otherwise if there is only one head, no conflict was triggered and the
+// new head becomes the current version for the object.
+//
+// In case of conflict, the graftNodes set is used to select the common
+// ancestor to pass to the conflict resolver.
+//
+// Note: if an object's graft structure does not exist only create it
+// if the "create" parameter is set to true.
+func (d *dag) getObjectGraft(oid storage.ID, create bool) *graftInfo {
+ graft := d.graft[oid]
+ if graft == nil && create {
+ graft = &graftInfo{
+ newNodes: make(map[storage.Version]struct{}),
+ graftNodes: make(map[storage.Version]uint64),
+ newHeads: make(map[storage.Version]struct{}),
+ }
+
+ // If a current head node exists for this object, initialize
+ // the set of candidate new heads to include it.
+ head, err := d.getHead(oid)
+ if err == nil {
+ graft.newHeads[head] = struct{}{}
+ }
+
+ d.graft[oid] = graft
+ }
+ return graft
+}
+
// addNode adds a new node for an object in the DAG, linking it to its parent nodes.
// It verifies that this node does not exist and that its parent nodes are valid.
// It also determines the DAG level of the node from its parent nodes (max() + 1).
@@ -237,21 +278,10 @@
// the origin root node), representing the most up-to-date common
// knowledge between this device and the divergent changes.
//
- // The graftInfo struct for an object is ephemeral (in-memory) and it
- // tracks the set of newly added nodes, which in turn is used to
- // detect an old-to-new edge which identifies the old node as a graft
- // node. The graft nodes and their DAG levels are tracked in a map
- // which is used to (1) detect conflicts and (2) select the common
- // ancestor to pass to the conflict resolver.
- //
// Note: at the end of a sync operation between 2 devices, the whole
// graft info is cleared (Syncd calls clearGraft()) to prepare it for
// the new pairwise sync operation.
- graft := d.graft[oid]
- if graft == nil && remote {
- graft = &graftInfo{newNodes: make(map[storage.Version]bool), graftNodes: make(map[storage.Version]uint64)}
- d.graft[oid] = graft
- }
+ graft := d.getObjectGraft(oid, remote)
// Verify the parents and determine the node level.
// Update the graft info in the DAG for this object.
@@ -267,16 +297,21 @@
if remote {
// If this parent is an old node, it's a graft point in the DAG
// and may be a common ancestor used during conflict resolution.
- if !graft.newNodes[parent] {
+ if _, ok := graft.newNodes[parent]; !ok {
graft.graftNodes[parent] = node.Level
}
+
+ // The parent nodes can no longer be candidates for new head versions.
+ if _, ok := graft.newHeads[parent]; ok {
+ delete(graft.newHeads, parent)
+ }
}
}
if remote {
- // This new node is so far the candidate for new head version.
- graft.newNodes[version] = true
- graft.newHead = version
+ // This new node is a candidate for new head version.
+ graft.newNodes[version] = struct{}{}
+ graft.newHeads[version] = struct{}{}
}
// Insert the new node in the kvdb.
@@ -293,6 +328,73 @@
return d.nodes.hasKey(key)
}
+// addParent adds to the DAG node (oid, version) linkage to this parent node.
+// If the parent linkage is due to a local change (from conflict resolution
+// by blessing an existing version), no need to update the grafting structure.
+// Otherwise a remote change (from the Sync protocol) updates the graft.
+//
+// TODO(rdaoud): add a check to avoid the creation of cycles in the DAG.
+// TODO(rdaoud): recompute the levels of reachable child-nodes if the new
+// parent's level is greater or equal to the node's current level.
+func (d *dag) addParent(oid storage.ID, version, parent storage.Version, remote bool) error {
+ node, err := d.getNode(oid, version)
+ if err != nil {
+ return err
+ }
+
+ pnode, err := d.getNode(oid, parent)
+ if err != nil {
+ vlog.VI(1).Infof("addParent: object %v, node %d, parent %d: parent node not found", oid, version, parent)
+ return err
+ }
+
+ // Check if the parent is already linked to this node.
+ found := false
+ for i := range node.Parents {
+ if node.Parents[i] == parent {
+ found = true
+ break
+ }
+ }
+
+ // If the parent is not yet linked (local or remote) add it.
+ if !found {
+ node.Parents = append(node.Parents, parent)
+ err = d.setNode(oid, version, node)
+ if err != nil {
+ return err
+ }
+ }
+
+ // For local changes we are done, the grafting structure is not updated.
+ if !remote {
+ return nil
+ }
+
+ // If the node and its parent are new/old or old/new then add
+ // the parent as a graft point (a potential common ancestor).
+ graft := d.getObjectGraft(oid, true)
+
+ _, nodeNew := graft.newNodes[version]
+ _, parentNew := graft.newNodes[parent]
+ if (nodeNew && !parentNew) || (!nodeNew && parentNew) {
+ graft.graftNodes[parent] = pnode.Level
+ }
+
+ // The parent node can no longer be a candidate for a new head version.
+ // The addParent() function only removes candidates from newHeads that
+ // have become parents. It does not add the child nodes to newHeads
+ // because they are not necessarily new-head candidates. If they are
+ // new nodes, the addNode() function handles adding them to newHeads.
+ // For old nodes, only the current head could be a candidate and it is
+ // added to newHeads when the graft struct is initialized.
+ if _, ok := graft.newHeads[parent]; ok {
+ delete(graft.newHeads, parent)
+ }
+
+ return nil
+}
+
// moveHead moves the object head node in the DAG.
func (d *dag) moveHead(oid storage.ID, head storage.Version) error {
if d.store == nil {
@@ -311,9 +413,10 @@
// new and old head nodes.
// - Yes: return (true, newHead, oldHead, ancestor)
// - No: return (false, newHead, oldHead, NoVersion)
-// A conflict exists if the current (old) head node is not one of the graft
-// point of the graph fragment just added. It means the newly added object
-// versions are not derived in part from this device's current knowledge.
+// A conflict exists when there are two new-head nodes. It means the newly
+// added object versions are not derived in part from this device's current
+// knowledge. If there is a single new-head, the object changes were applied
+// without triggering a conflict.
func (d *dag) hasConflict(oid storage.ID) (isConflict bool, newHead, oldHead, ancestor storage.Version, err error) {
oldHead = storage.NoVersion
newHead = storage.NoVersion
@@ -329,19 +432,33 @@
return
}
- newHead = graft.newHead
- oldHead, err2 := d.getHead(oid)
- if err2 != nil {
- // This is a new object not previously known on this device, so
- // it does not yet have a "head node" here. This means all the
- // DAG updates for it are new and to taken as-is (no conflict).
- // That's why we ignore the error which is only indicating the
- // lack of a prior head node.
+ numHeads := len(graft.newHeads)
+ if numHeads < 1 || numHeads > 2 {
+ err = fmt.Errorf("node %d has invalid number of new head candidates %d: %v", oid, numHeads, graft.newHeads)
return
}
- if _, ok := graft.graftNodes[oldHead]; ok {
- return // no conflict, current head is a graft point
+ // Fetch the current head for this object if it exists. The error from getHead()
+ // is ignored because a newly received object is not yet known on this device and
+ // will not trigger a conflict.
+ oldHead, _ = d.getHead(oid)
+
+ // If there is only one new head node there is no conflict.
+ // The new head is that single one, even if it might also be the same old node.
+ if numHeads == 1 {
+ for k := range graft.newHeads {
+ newHead = k
+ }
+ return
+ }
+
+ // With two candidate head nodes, the new one is the node that is
+ // not the current (old) head node.
+ for k := range graft.newHeads {
+ if k != oldHead {
+ newHead = k
+ break
+ }
}
// There is a conflict: the best choice ancestor is the graft point
@@ -514,10 +631,10 @@
// getHead retrieves the object head from the DAG.
func (d *dag) getHead(oid storage.ID) (storage.Version, error) {
- if d.store == nil {
- return 0, errors.New("invalid DAG")
- }
var version storage.Version
+ if d.store == nil {
+ return version, errors.New("invalid DAG")
+ }
key := objHeadKey(oid)
err := d.heads.get(key, &version)
if err != nil {
@@ -537,7 +654,9 @@
iterVersions = append(iterVersions, head)
}
if graft := d.graft[oid]; graft != nil {
- iterVersions = append(iterVersions, graft.newHead)
+ for k := range graft.newHeads {
+ iterVersions = append(iterVersions, k)
+ }
}
// Breadth-first traversal starting from the object head.
@@ -551,15 +670,15 @@
// getGraftNodes is a testing and debug helper function that returns for
// an object the graft information built and used during a sync operation.
-// The newHead version identifies the head node reported by the other device
-// during a sync operation. The graftNodes map identifies the set of old
-// nodes where the new DAG fragments were attached and their depth level
-// in the DAG.
-func (d *dag) getGraftNodes(oid storage.ID) (storage.Version, map[storage.Version]uint64) {
+// The newHeads map identifies the candidate head nodes based on the data
+// reported by the other device during a sync operation. The graftNodes map
+// identifies the set of old nodes where the new DAG fragments were attached
+// and their depth level in the DAG.
+func (d *dag) getGraftNodes(oid storage.ID) (map[storage.Version]struct{}, map[storage.Version]uint64) {
if d.store != nil {
if ginfo := d.graft[oid]; ginfo != nil {
- return ginfo.newHead, ginfo.graftNodes
+ return ginfo.newHeads, ginfo.graftNodes
}
}
- return 0, nil
+ return nil, nil
}
diff --git a/runtimes/google/vsync/dag_test.go b/runtimes/google/vsync/dag_test.go
index 0b5d4c8..5f94836 100644
--- a/runtimes/google/vsync/dag_test.go
+++ b/runtimes/google/vsync/dag_test.go
@@ -141,6 +141,11 @@
t.Errorf("delNode() did not fail on a closed DAG: %v", err)
}
+ err = dag.addParent(oid, 4, 2, true)
+ if err == nil || err.Error() != "invalid DAG" {
+ t.Errorf("addParent() did not fail on a closed DAG: %v", err)
+ }
+
err = dag.setHead(oid, 4)
if err == nil || err.Error() != "invalid DAG" {
t.Errorf("setHead() did not fail on a closed DAG: %v", err)
@@ -166,8 +171,8 @@
if pmap := dag.getParentMap(oid); len(pmap) != 0 {
t.Errorf("getParentMap() found data on a closed DAG: %v", pmap)
}
- if head, gmap := dag.getGraftNodes(oid); head != 0 || len(gmap) != 0 {
- t.Errorf("getGraftNodes() found data on a closed DAG: head: %d, map: %v", head, gmap)
+ if hmap, gmap := dag.getGraftNodes(oid); hmap != nil || gmap != nil {
+ t.Errorf("getGraftNodes() found data on a closed DAG: head map: %v, graft map: %v", hmap, gmap)
}
}
@@ -294,6 +299,65 @@
dag.close()
}
+// TestAddParent tests adding parents to a DAG node.
+func TestAddParent(t *testing.T) {
+ dagfile := dagFilename()
+ defer os.Remove(dagfile)
+
+ dag, err := openDAG(dagfile)
+ if err != nil {
+ t.Fatalf("Cannot open new DAG file %s", dagfile)
+ }
+
+ version := storage.Version(7)
+ oid, err := strToObjID("789")
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ if err = dag.addParent(oid, version, 1, true); err == nil {
+ t.Errorf("addParent() did not fail for an unknown object %d:%d in DAG file %s", oid, version, dagfile)
+ }
+
+ node := &dagNode{Level: 15, Logrec: "logrec-22"}
+ if err = dag.setNode(oid, version, node); err != nil {
+ t.Fatalf("Cannot set object %d:%d (%v) in DAG file %s", oid, version, node, dagfile)
+ }
+
+ for _, parent := range []storage.Version{1, 2, 3} {
+ if err = dag.addParent(oid, version, parent, true); err == nil {
+ t.Errorf("addParent() did not reject invalid parent %d for object %d:%d in DAG file %s",
+ parent, oid, version, dagfile)
+ }
+
+ pnode := &dagNode{Level: 11, Logrec: fmt.Sprint("logrec-%d", parent)}
+ if err = dag.setNode(oid, parent, pnode); err != nil {
+ t.Fatalf("Cannot set parent object %d:%d (%v) in DAG file %s", oid, parent, pnode, dagfile)
+ }
+
+ remote := parent%2 == 0
+ for i := 0; i < 2; i++ {
+ if err = dag.addParent(oid, version, parent, remote); err != nil {
+ t.Errorf("addParent() failed on parent %d, remote %d (i=%d) for object %d:%d in DAG file %s: %v",
+ parent, remote, i, oid, version, dagfile, err)
+ }
+ }
+ }
+
+ node2, err := dag.getNode(oid, version)
+ if err != nil || node2 == nil {
+ t.Errorf("Cannot find stored object %d:%d in DAG file %s", oid, version, dagfile)
+ }
+
+ expParents := []storage.Version{1, 2, 3}
+ if !reflect.DeepEqual(node2.Parents, expParents) {
+ t.Errorf("invalid parents for object %d:%d in DAG file %s: %v instead of %v",
+ oid, version, dagfile, node2.Parents, expParents)
+ }
+
+ dag.close()
+}
+
// TestSetHead tests setting and getting a DAG head node across DAG open/close/reopen.
func TestSetHead(t *testing.T) {
dagfile := dagFilename()
@@ -357,9 +421,9 @@
d.clearGraft()
// There should be no grafting info, and hasConflict() should fail.
- newHead, grafts := d.getGraftNodes(oid)
- if newHead != 0 || grafts != nil {
- return fmt.Errorf("Object %d: graft info not cleared: newhead (%d), grafts (%v)", oid, newHead, grafts)
+ newHeads, grafts := d.getGraftNodes(oid)
+ if newHeads != nil || grafts != nil {
+ return fmt.Errorf("Object %d: graft info not cleared: newHeads (%v), grafts (%v)", oid, newHeads, grafts)
}
isConflict, newHead, oldHead, ancestor, errConflict := d.hasConflict(oid)
@@ -472,9 +536,11 @@
}
// Verify the grafting of remote nodes.
- newHead, grafts := dag.getGraftNodes(oid)
- if newHead != 2 {
- t.Errorf("Object %d has invalid newhead %d in graft info in DAG file %s", oid, newHead, dagfile)
+ newHeads, grafts := dag.getGraftNodes(oid)
+
+ expNewHeads := map[storage.Version]struct{}{2: struct{}{}}
+ if !reflect.DeepEqual(newHeads, expNewHeads) {
+ t.Errorf("Object %d has invalid newHeads in DAG file %s: (%v) instead of (%v)", oid, dagfile, newHeads, expNewHeads)
}
expgrafts := map[storage.Version]uint64{}
@@ -551,9 +617,11 @@
}
// Verify the grafting of remote nodes.
- newHead, grafts := dag.getGraftNodes(oid)
- if newHead != 5 {
- t.Errorf("Object %d has invalid newhead %d in graft info in DAG file %s", oid, newHead, dagfile)
+ newHeads, grafts := dag.getGraftNodes(oid)
+
+ expNewHeads := map[storage.Version]struct{}{5: struct{}{}}
+ if !reflect.DeepEqual(newHeads, expNewHeads) {
+ t.Errorf("Object %d has invalid newHeads in DAG file %s: (%v) instead of (%v)", oid, dagfile, newHeads, expNewHeads)
}
expgrafts := map[storage.Version]uint64{2: 2}
@@ -640,9 +708,11 @@
}
// Verify the grafting of remote nodes.
- newHead, grafts := dag.getGraftNodes(oid)
- if newHead != 5 {
- t.Errorf("Object %d has invalid newhead %d in graft info in DAG file %s", oid, newHead, dagfile)
+ newHeads, grafts := dag.getGraftNodes(oid)
+
+ expNewHeads := map[storage.Version]struct{}{2: struct{}{}, 5: struct{}{}}
+ if !reflect.DeepEqual(newHeads, expNewHeads) {
+ t.Errorf("Object %d has invalid newHeads in DAG file %s: (%v) instead of (%v)", oid, dagfile, newHeads, expNewHeads)
}
expgrafts := map[storage.Version]uint64{1: 1}
@@ -740,9 +810,11 @@
}
// Verify the grafting of remote nodes.
- newHead, grafts := dag.getGraftNodes(oid)
- if newHead != 5 {
- t.Errorf("Object %d has invalid newhead %d in graft info in DAG file %s", oid, newHead, dagfile)
+ newHeads, grafts := dag.getGraftNodes(oid)
+
+ expNewHeads := map[storage.Version]struct{}{2: struct{}{}, 5: struct{}{}}
+ if !reflect.DeepEqual(newHeads, expNewHeads) {
+ t.Errorf("Object %d has invalid newHeads in DAG file %s: (%v) instead of (%v)", oid, dagfile, newHeads, expNewHeads)
}
expgrafts := map[storage.Version]uint64{0: 0, 1: 1}
@@ -1090,3 +1162,339 @@
}
dag.close()
}
+
+// TestRemoteLinkedNoConflictSameHead tests sync of remote updates that contain
+// linked nodes (conflict resolution by selecting an existing version) on top of
+// a local initial state without conflict. An object is created locally and
+// updated twice (v0 -> v1 -> v2). Another device has learned about v0, created
+// (v0 -> v3), then learned about (v0 -> v1) and resolved that conflict by selecting
+// v1 over v3. Now it sends that new info (v3 and the v1/v3 link) back to the
+// original (local) device. Instead of a v2/v3 conflict, the device sees that
+// v1 was chosen over v3 and resolves it as a no-conflict case.
+func TestRemoteLinkedNoConflictSameHead(t *testing.T) {
+ dagfile := dagFilename()
+ defer os.Remove(dagfile)
+
+ dag, err := openDAG(dagfile)
+ if err != nil {
+ t.Fatalf("Cannot open new DAG file %s", dagfile)
+ }
+
+ if err = dagReplayCommands(dag, "local-init-00.sync"); err != nil {
+ t.Fatal(err)
+ }
+ if err = dagReplayCommands(dag, "remote-noconf-link-00.log.sync"); err != nil {
+ t.Fatal(err)
+ }
+
+ // The head must not have moved (i.e. still at v2) and the parent map
+ // shows the newly grafted DAG fragment on top of the prior DAG.
+ oid, err := strToObjID("12345")
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ if head, e := dag.getHead(oid); e != nil || head != 2 {
+ t.Errorf("Object %d has wrong head in DAG file %s: %d", oid, dagfile, head)
+ }
+
+ pmap := dag.getParentMap(oid)
+
+ exp := map[storage.Version][]storage.Version{0: nil, 1: {0, 3}, 2: {1}, 3: {0}}
+
+ if !reflect.DeepEqual(pmap, exp) {
+ t.Errorf("Invalid object %d parent map in DAG file %s: (%v) instead of (%v)", oid, dagfile, pmap, exp)
+ }
+
+ // Verify the grafting of remote nodes.
+ newHeads, grafts := dag.getGraftNodes(oid)
+
+ expNewHeads := map[storage.Version]struct{}{2: struct{}{}}
+ if !reflect.DeepEqual(newHeads, expNewHeads) {
+ t.Errorf("Object %d has invalid newHeads in DAG file %s: (%v) instead of (%v)", oid, dagfile, newHeads, expNewHeads)
+ }
+
+ expgrafts := map[storage.Version]uint64{0: 0, 3: 1}
+ if !reflect.DeepEqual(grafts, expgrafts) {
+ t.Errorf("Invalid object %d graft in DAG file %s: (%v) instead of (%v)", oid, dagfile, grafts, expgrafts)
+ }
+
+ // There should be no conflict.
+ isConflict, newHead, oldHead, ancestor, errConflict := dag.hasConflict(oid)
+ if !(!isConflict && newHead == 2 && oldHead == 2 && ancestor == 0 && errConflict == nil) {
+ t.Errorf("Object %d wrong conflict info: flag %t, newHead %d, oldHead %d, ancestor %d, err %v",
+ oid, isConflict, newHead, oldHead, ancestor, errConflict)
+ }
+
+ // Clear the grafting data and verify that hasConflict() fails without it.
+ dag.clearGraft()
+ isConflict, newHead, oldHead, ancestor, errConflict = dag.hasConflict(oid)
+ if errConflict == nil {
+ t.Errorf("hasConflict() did not fail w/o graft info: flag %t, newHead %d, oldHead %d, ancestor %d, err %v",
+ oid, isConflict, newHead, oldHead, ancestor, errConflict)
+ }
+
+ if err := checkEndOfSync(dag, oid); err != nil {
+ t.Fatal(err)
+ }
+}
+
+// TestRemoteLinkedConflict tests sync of remote updates that contain linked
+// nodes (conflict resolution by selecting an existing version) on top of a local
+// initial state triggering a local conflict. An object is created locally and
+// updated twice (v0 -> v1 -> v2). Another device has along the way learned about v0,
+// created (v0 -> v3), then learned about (v0 -> v1) and resolved that conflict by
+// selecting v3 over v1. Now it sends that new info (v3 and the v3/v1 link) back
+// to the original (local) device. The device sees a v2/v3 conflict.
+func TestRemoteLinkedConflict(t *testing.T) {
+ dagfile := dagFilename()
+ defer os.Remove(dagfile)
+
+ dag, err := openDAG(dagfile)
+ if err != nil {
+ t.Fatalf("Cannot open new DAG file %s", dagfile)
+ }
+
+ if err = dagReplayCommands(dag, "local-init-00.sync"); err != nil {
+ t.Fatal(err)
+ }
+ if err = dagReplayCommands(dag, "remote-conf-link.log.sync"); err != nil {
+ t.Fatal(err)
+ }
+
+ // The head must not have moved (i.e. still at v2) and the parent map
+ // shows the newly grafted DAG fragment on top of the prior DAG.
+ oid, err := strToObjID("12345")
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ if head, e := dag.getHead(oid); e != nil || head != 2 {
+ t.Errorf("Object %d has wrong head in DAG file %s: %d", oid, dagfile, head)
+ }
+
+ pmap := dag.getParentMap(oid)
+
+ exp := map[storage.Version][]storage.Version{0: nil, 1: {0}, 2: {1}, 3: {0, 1}}
+
+ if !reflect.DeepEqual(pmap, exp) {
+ t.Errorf("Invalid object %d parent map in DAG file %s: (%v) instead of (%v)", oid, dagfile, pmap, exp)
+ }
+
+ // Verify the grafting of remote nodes.
+ newHeads, grafts := dag.getGraftNodes(oid)
+
+ expNewHeads := map[storage.Version]struct{}{2: struct{}{}, 3: struct{}{}}
+ if !reflect.DeepEqual(newHeads, expNewHeads) {
+ t.Errorf("Object %d has invalid newHeads in DAG file %s: (%v) instead of (%v)", oid, dagfile, newHeads, expNewHeads)
+ }
+
+ expgrafts := map[storage.Version]uint64{0: 0, 1: 1}
+ if !reflect.DeepEqual(grafts, expgrafts) {
+ t.Errorf("Invalid object %d graft in DAG file %s: (%v) instead of (%v)", oid, dagfile, grafts, expgrafts)
+ }
+
+ // There should be no conflict.
+ isConflict, newHead, oldHead, ancestor, errConflict := dag.hasConflict(oid)
+ if !(isConflict && newHead == 3 && oldHead == 2 && ancestor == 1 && errConflict == nil) {
+ t.Errorf("Object %d wrong conflict info: flag %t, newHead %d, oldHead %d, ancestor %d, err %v",
+ oid, isConflict, newHead, oldHead, ancestor, errConflict)
+ }
+
+ // Clear the grafting data and verify that hasConflict() fails without it.
+ dag.clearGraft()
+ isConflict, newHead, oldHead, ancestor, errConflict = dag.hasConflict(oid)
+ if errConflict == nil {
+ t.Errorf("hasConflict() did not fail w/o graft info: flag %t, newHead %d, oldHead %d, ancestor %d, err %v",
+ oid, isConflict, newHead, oldHead, ancestor, errConflict)
+ }
+
+ if err := checkEndOfSync(dag, oid); err != nil {
+ t.Fatal(err)
+ }
+}
+
+// TestRemoteLinkedNoConflictNewHead tests sync of remote updates that contain
+// linked nodes (conflict resolution by selecting an existing version) on top of
+// a local initial state without conflict, but moves the head node to a new one.
+// An object is created locally and updated twice (v0 -> v1 -> v2). Another device
+// has along the way learned about v0, created (v0 -> v3), then learned about
+// (v0 -> v1 -> v2) and resolved that conflict by selecting v3 over v2. Now it
+// sends that new info (v3 and the v3/v2 link) back to the original (local) device.
+// The device sees that the new head v3 is "derived" from v2 thus no conflict.
+func TestRemoteLinkedConflictNewHead(t *testing.T) {
+ dagfile := dagFilename()
+ defer os.Remove(dagfile)
+
+ dag, err := openDAG(dagfile)
+ if err != nil {
+ t.Fatalf("Cannot open new DAG file %s", dagfile)
+ }
+
+ if err = dagReplayCommands(dag, "local-init-00.sync"); err != nil {
+ t.Fatal(err)
+ }
+ if err = dagReplayCommands(dag, "remote-noconf-link-01.log.sync"); err != nil {
+ t.Fatal(err)
+ }
+
+ // The head must not have moved (i.e. still at v2) and the parent map
+ // shows the newly grafted DAG fragment on top of the prior DAG.
+ oid, err := strToObjID("12345")
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ if head, e := dag.getHead(oid); e != nil || head != 2 {
+ t.Errorf("Object %d has wrong head in DAG file %s: %d", oid, dagfile, head)
+ }
+
+ pmap := dag.getParentMap(oid)
+
+ exp := map[storage.Version][]storage.Version{0: nil, 1: {0}, 2: {1}, 3: {0, 2}}
+
+ if !reflect.DeepEqual(pmap, exp) {
+ t.Errorf("Invalid object %d parent map in DAG file %s: (%v) instead of (%v)", oid, dagfile, pmap, exp)
+ }
+
+ // Verify the grafting of remote nodes.
+ newHeads, grafts := dag.getGraftNodes(oid)
+
+ expNewHeads := map[storage.Version]struct{}{3: struct{}{}}
+ if !reflect.DeepEqual(newHeads, expNewHeads) {
+ t.Errorf("Object %d has invalid newHeads in DAG file %s: (%v) instead of (%v)", oid, dagfile, newHeads, expNewHeads)
+ }
+
+ expgrafts := map[storage.Version]uint64{0: 0, 2: 2}
+ if !reflect.DeepEqual(grafts, expgrafts) {
+ t.Errorf("Invalid object %d graft in DAG file %s: (%v) instead of (%v)", oid, dagfile, grafts, expgrafts)
+ }
+
+ // There should be no conflict.
+ isConflict, newHead, oldHead, ancestor, errConflict := dag.hasConflict(oid)
+ if !(!isConflict && newHead == 3 && oldHead == 2 && ancestor == 0 && errConflict == nil) {
+ t.Errorf("Object %d wrong conflict info: flag %t, newHead %d, oldHead %d, ancestor %d, err %v",
+ oid, isConflict, newHead, oldHead, ancestor, errConflict)
+ }
+
+ // Clear the grafting data and verify that hasConflict() fails without it.
+ dag.clearGraft()
+ isConflict, newHead, oldHead, ancestor, errConflict = dag.hasConflict(oid)
+ if errConflict == nil {
+ t.Errorf("hasConflict() did not fail w/o graft info: flag %t, newHead %d, oldHead %d, ancestor %d, err %v",
+ oid, isConflict, newHead, oldHead, ancestor, errConflict)
+ }
+
+ if err := checkEndOfSync(dag, oid); err != nil {
+ t.Fatal(err)
+ }
+}
+
+// TestRemoteLinkedNoConflictNewHeadOvertake tests sync of remote updates that
+// contain linked nodes (conflict resolution by selecting an existing version)
+// on top of a local initial state without conflict, but moves the head node
+// to a new one that overtook the linked node.
+// An object is created locally and updated twice (v0 -> v1 -> v2). Another
+// device has along the way learned about v0, created (v0 -> v3), then learned
+// about (v0 -> v1 -> v2) and resolved that conflict by selecting v2 over v3.
+// Then it creates a new update v4 from v2 (v2 -> v4). Now it sends that new
+// info (v3, the v2/v3 link, and v4) back to the original (local) device.
+// The device sees that the new head v4 is "derived" from v2 thus no conflict.
+func TestRemoteLinkedConflictNewHeadOvertake(t *testing.T) {
+ dagfile := dagFilename()
+ defer os.Remove(dagfile)
+
+ dag, err := openDAG(dagfile)
+ if err != nil {
+ t.Fatalf("Cannot open new DAG file %s", dagfile)
+ }
+
+ if err = dagReplayCommands(dag, "local-init-00.sync"); err != nil {
+ t.Fatal(err)
+ }
+ if err = dagReplayCommands(dag, "remote-noconf-link-02.log.sync"); err != nil {
+ t.Fatal(err)
+ }
+
+ // The head must not have moved (i.e. still at v2) and the parent map
+ // shows the newly grafted DAG fragment on top of the prior DAG.
+ oid, err := strToObjID("12345")
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ if head, e := dag.getHead(oid); e != nil || head != 2 {
+ t.Errorf("Object %d has wrong head in DAG file %s: %d", oid, dagfile, head)
+ }
+
+ pmap := dag.getParentMap(oid)
+
+ exp := map[storage.Version][]storage.Version{0: nil, 1: {0}, 2: {1, 3}, 3: {0}, 4: {2}}
+
+ if !reflect.DeepEqual(pmap, exp) {
+ t.Errorf("Invalid object %d parent map in DAG file %s: (%v) instead of (%v)", oid, dagfile, pmap, exp)
+ }
+
+ // Verify the grafting of remote nodes.
+ newHeads, grafts := dag.getGraftNodes(oid)
+
+ expNewHeads := map[storage.Version]struct{}{4: struct{}{}}
+ if !reflect.DeepEqual(newHeads, expNewHeads) {
+ t.Errorf("Object %d has invalid newHeads in DAG file %s: (%v) instead of (%v)", oid, dagfile, newHeads, expNewHeads)
+ }
+
+ expgrafts := map[storage.Version]uint64{0: 0, 2: 2, 3: 1}
+ if !reflect.DeepEqual(grafts, expgrafts) {
+ t.Errorf("Invalid object %d graft in DAG file %s: (%v) instead of (%v)", oid, dagfile, grafts, expgrafts)
+ }
+
+ // There should be no conflict.
+ isConflict, newHead, oldHead, ancestor, errConflict := dag.hasConflict(oid)
+ if !(!isConflict && newHead == 4 && oldHead == 2 && ancestor == 0 && errConflict == nil) {
+ t.Errorf("Object %d wrong conflict info: flag %t, newHead %d, oldHead %d, ancestor %d, err %v",
+ oid, isConflict, newHead, oldHead, ancestor, errConflict)
+ }
+
+ // Then we can move the head and clear the grafting data.
+ if err = dag.moveHead(oid, newHead); err != nil {
+ t.Errorf("Object %d cannot move head to %d in DAG file %s: %v", oid, newHead, dagfile, err)
+ }
+
+ // Clear the grafting data and verify that hasConflict() fails without it.
+ dag.clearGraft()
+ isConflict, newHead, oldHead, ancestor, errConflict = dag.hasConflict(oid)
+ if errConflict == nil {
+ t.Errorf("hasConflict() did not fail w/o graft info: flag %t, newHead %d, oldHead %d, ancestor %d, err %v",
+ oid, isConflict, newHead, oldHead, ancestor, errConflict)
+ }
+
+ // Now new info comes from another device repeating the v2/v3 link.
+ // Verify that it is a NOP (no changes).
+ if err = dagReplayCommands(dag, "remote-noconf-link-repeat.log.sync"); err != nil {
+ t.Fatal(err)
+ }
+
+ if head, e := dag.getHead(oid); e != nil || head != 4 {
+ t.Errorf("Object %d has wrong head in DAG file %s: %d", oid, dagfile, head)
+ }
+
+ newHeads, grafts = dag.getGraftNodes(oid)
+ if !reflect.DeepEqual(newHeads, expNewHeads) {
+ t.Errorf("Object %d has invalid newHeads in DAG file %s: (%v) instead of (%v)", oid, dagfile, newHeads, expNewHeads)
+ }
+
+ expgrafts = map[storage.Version]uint64{}
+ if !reflect.DeepEqual(grafts, expgrafts) {
+ t.Errorf("Invalid object %d graft in DAG file %s: (%v) instead of (%v)", oid, dagfile, grafts, expgrafts)
+ }
+
+ isConflict, newHead, oldHead, ancestor, errConflict = dag.hasConflict(oid)
+ if !(!isConflict && newHead == 4 && oldHead == 4 && ancestor == 0 && errConflict == nil) {
+ t.Errorf("Object %d wrong conflict info: flag %t, newHead %d, oldHead %d, ancestor %d, err %v",
+ oid, isConflict, newHead, oldHead, ancestor, errConflict)
+ }
+
+ if err := checkEndOfSync(dag, oid); err != nil {
+ t.Fatal(err)
+ }
+}
diff --git a/runtimes/google/vsync/gc.go b/runtimes/google/vsync/gc.go
index 726868c..9dc8dd1 100644
--- a/runtimes/google/vsync/gc.go
+++ b/runtimes/google/vsync/gc.go
@@ -96,7 +96,9 @@
// strictCheck when enabled performs strict checking of every
// log record being deleted to confirm that it should be in
// fact deleted.
- strictCheck = true
+ // TODO(hpucha): Support strictCheck in the presence
+ // of Link log records.
+ strictCheck = false
// Every compactCount iterations of garbage collection, kvdb
// is compacted. This value has performance implications as
@@ -304,6 +306,12 @@
return err
}
+ if rec.RecType == LinkRec {
+ // For a link log record, gc it right away.
+ g.dagPruneCallBack(logRecKey(devid, gnum, l))
+ continue
+ }
+
// Insert the object in this log record to the prune
// map if needed.
// If this object does not exist, create it.
@@ -441,19 +449,21 @@
if err != nil {
return err
}
- objHist, ok := g.verifyPruneMap[rec.ObjID]
- if !ok {
- return errors.New("obj not found in verifyMap")
- }
- _, found := objHist.versions[rec.CurVers]
- // If online consistency check is in progress, we
- // cannot strictly verify all the versions to be
- // deleted, and we ignore the failure to find a
- // version.
- if found {
- delete(objHist.versions, rec.CurVers)
- } else if !g.checkConsistency {
- return errors.New("verification failed")
+ if rec.RecType == NodeRec {
+ objHist, ok := g.verifyPruneMap[rec.ObjID]
+ if !ok {
+ return errors.New("obj not found in verifyMap")
+ }
+ _, found := objHist.versions[rec.CurVers]
+ // If online consistency check is in progress, we
+ // cannot strictly verify all the versions to be
+ // deleted, and we ignore the failure to find a
+ // version.
+ if found {
+ delete(objHist.versions, rec.CurVers)
+ } else if !g.checkConsistency {
+ return errors.New("verification failed")
+ }
}
}
diff --git a/runtimes/google/vsync/ilog.go b/runtimes/google/vsync/ilog.go
index feb92a8..930df89 100644
--- a/runtimes/google/vsync/ilog.go
+++ b/runtimes/google/vsync/ilog.go
@@ -45,6 +45,7 @@
"veyron/services/store/raw"
"veyron2/storage"
+ "veyron2/vlog"
)
var (
@@ -300,12 +301,13 @@
return l.gens.del(key)
}
-// createLocalLogRec creates a new local log record.
+// createLocalLogRec creates a new local log record of type NodeRec.
func (l *iLog) createLocalLogRec(obj storage.ID, vers storage.Version, par []storage.Version, val *LogValue) (*LogRec, error) {
rec := &LogRec{
- DevID: l.s.id,
- GNum: l.head.Curgen,
- LSN: l.head.Curlsn,
+ DevID: l.s.id,
+ GNum: l.head.Curgen,
+ LSN: l.head.Curlsn,
+ RecType: NodeRec,
ObjID: obj,
CurVers: vers,
@@ -319,6 +321,25 @@
return rec, nil
}
+// createLocalLinkLogRec creates a new local log record of type LinkRec.
+func (l *iLog) createLocalLinkLogRec(obj storage.ID, vers, par storage.Version) (*LogRec, error) {
+ rec := &LogRec{
+ DevID: l.s.id,
+ GNum: l.head.Curgen,
+ LSN: l.head.Curlsn,
+ RecType: LinkRec,
+
+ ObjID: obj,
+ CurVers: vers,
+ Parents: []storage.Version{par},
+ }
+
+ // Increment the LSN for the local log.
+ l.head.Curlsn++
+
+ return rec, nil
+}
+
// createRemoteGeneration adds a new remote generation.
func (l *iLog) createRemoteGeneration(dev DeviceID, gnum GenID, gen *genMetadata) error {
if l.db == nil {
@@ -357,6 +378,7 @@
}
err := l.putGenMetadata(l.s.id, g, val)
+ vlog.VI(2).Infof("createLocalGeneration:: created gen %d %v", g, val)
// Move to the next generation irrespective of err.
l.head.Curorder++
l.head.Curgen++
@@ -370,6 +392,8 @@
if l.db == nil {
return errInvalidLog
}
+
+ vlog.VI(2).Infof("processWatchRecord:: adding object %v %v", objID, vers)
// Check if the object version already exists in the DAG. if so return.
if l.s.dag.hasNode(objID, vers) {
return nil
diff --git a/runtimes/google/vsync/initiator.go b/runtimes/google/vsync/initiator.go
index 67422d9..af7ece9 100644
--- a/runtimes/google/vsync/initiator.go
+++ b/runtimes/google/vsync/initiator.go
@@ -44,7 +44,7 @@
// peerSyncInterval is the duration between two consecutive
// sync events. In every sync event, the initiator contacts
// one of its peers to obtain any pending updates.
- peerSyncInterval = 100 * time.Millisecond
+ peerSyncInterval = 50 * time.Millisecond
// peerSelectionPolicy is the policy used to select a peer when
// the initiator gets a chance to sync.
@@ -191,6 +191,7 @@
return GenVector{}, err
}
+ vlog.VI(2).Infof("updateLocalGeneration:: created gen %d", gen)
// Update local generation vector in devTable.
if err = i.syncd.devtab.updateGeneration(i.syncd.id, i.syncd.id, gen); err != nil {
return GenVector{}, err
@@ -308,10 +309,16 @@
if err != nil {
return err
}
- if err = i.syncd.dag.addNode(rec.ObjID, rec.CurVers, true, rec.Parents, logKey); err != nil {
- return err
+
+ vlog.VI(2).Infof("insertRecInLogAndDag:: Adding log record %v", rec)
+ switch rec.RecType {
+ case NodeRec:
+ return i.syncd.dag.addNode(rec.ObjID, rec.CurVers, true, rec.Parents, logKey)
+ case LinkRec:
+ return i.syncd.dag.addParent(rec.ObjID, rec.CurVers, rec.Parents[0], true)
+ default:
+ return fmt.Errorf("unknown log record type")
}
- return nil
}
// createGenMetadataBatch inserts a batch of generations into the log.
@@ -337,12 +344,31 @@
// processUpdatedObjects processes all the updates received by the
// initiator, one object at a time. For each updated object, we first
-// check if the object has any conflicts. If there is a conflict, we
-// resolve the conflict and generate a new store mutation reflecting
-// the conflict resolution. If there is no conflict, we generate a
-// store mutation to simply update the store to the latest value. We
-// then put all these mutations in the store. If the put succeeds, we
-// update the log and dag state suitably (move the head ptr of the
+// check if the object has any conflicts, resulting in three
+// possibilities:
+//
+// * There is no conflict, and no updates are needed to the store
+// (isConflict=false, newHead == oldHead). All changes received convey
+// information that still keeps the local head as the most recent
+// version. This occurs when conflicts are resolved by blessings.
+//
+// * There is no conflict, but a remote version is discovered that
+// builds on the local head (isConflict=false, newHead != oldHead). In
+// this case, we generate a store mutation to simply update the store
+// to the latest value.
+//
+// * There is a conflict and we call into the app or the system to
+// resolve the conflict, resulting in three possibilties: (a) conflict
+// was resolved by blessing the local version. In this case, store
+// need not be updated, but a link is added to record the
+// blessing. (b) conflict was resolved by blessing the remote
+// version. In this case, store is updated with the remote version and
+// a link is added as well. (c) conflict was resolved by generating a
+// new store mutation. In this case, store is updated with the new
+// version.
+//
+// We then put all these mutations in the store. If the put succeeds,
+// we update the log and dag state suitably (move the head ptr of the
// object in the dag to the latest version, and create a new log
// record reflecting conflict resolution if any). Puts to store can
// fail since preconditions on the objects may have been violated. In
@@ -355,12 +381,11 @@
return err
}
- m, err := i.resolveConflicts()
- if err != nil {
+ if err := i.resolveConflicts(); err != nil {
return err
}
- err = i.updateStoreAndSync(ctx, m, local, minGens, remote, dID)
+ err := i.updateStoreAndSync(ctx, local, minGens, remote, dID)
if err == nil {
break
}
@@ -370,7 +395,7 @@
// solution. Next iteration will have coordination
// with watch thread to intelligently retry. Hence
// this value is not a config param.
- time.Sleep(10 * time.Second)
+ time.Sleep(1 * time.Second)
}
// Remove any pending state.
@@ -390,60 +415,28 @@
// Check if object has a conflict.
var err error
st.isConflict, st.newHead, st.oldHead, st.ancestor, err = i.syncd.dag.hasConflict(obj)
+ vlog.VI(2).Infof("detectConflicts:: object %v state %v err %v",
+ obj, st, err)
if err != nil {
return err
}
- if !st.isConflict {
- rec, err := i.getLogRec(obj, st.newHead)
- if err != nil {
- return err
- }
- st.resolvVal = &rec.Value
- // Sanity check.
- if st.resolvVal.Mutation.Version != st.newHead {
- return fmt.Errorf("bad mutation %d %d",
- st.resolvVal.Mutation.Version, st.newHead)
- }
- }
}
return nil
}
-// getLogRec returns the log record corresponding to a given object and its version.
-func (i *syncInitiator) getLogRec(obj storage.ID, vers storage.Version) (*LogRec, error) {
- logKey, err := i.syncd.dag.getLogrec(obj, vers)
- if err != nil {
- return nil, err
- }
- dev, gen, lsn, err := splitLogRecKey(logKey)
- if err != nil {
- return nil, err
- }
- rec, err := i.syncd.log.getLogRec(dev, gen, lsn)
- if err != nil {
- return nil, err
- }
- return rec, nil
-}
-
-// resolveConflicts resolves conflicts for updated objects.
-func (i *syncInitiator) resolveConflicts() ([]raw.Mutation, error) {
+// resolveConflicts resolves conflicts for updated objects. Conflicts
+// may be resolved by adding new versions or blessing either the local
+// or the remote version.
+func (i *syncInitiator) resolveConflicts() error {
switch conflictResolutionPolicy {
case useTime:
if err := i.resolveConflictsByTime(); err != nil {
- return nil, err
+ return err
}
default:
- return nil, fmt.Errorf("unknown conflict resolution policy")
+ return fmt.Errorf("unknown conflict resolution policy")
}
-
- var m []raw.Mutation
- for _, st := range i.updObjects {
- // Append to mutations.
- st.resolvVal.Mutation.PriorVersion = st.oldHead
- m = append(m, st.resolvVal.Mutation)
- }
- return m, nil
+ return nil
}
// resolveConflictsByTime resolves conflicts using the timestamps
@@ -482,11 +475,10 @@
res = 1
}
- m := lrecs[res].Value.Mutation
- m.Version = storage.NewVersion()
-
- // TODO(hpucha): handle continue and delete flags.
- st.resolvVal = &LogValue{Mutation: m}
+ // Instead of creating a new version that resolves the
+ // conflict, we are blessing an existing version as
+ // the conflict resolution.
+ st.resolvVal = &lrecs[res].Value
}
return nil
@@ -511,11 +503,38 @@
// updateStoreAndSync updates the store, and if that is successful,
// updates log and dag data structures.
-func (i *syncInitiator) updateStoreAndSync(ctx context.T, m []raw.Mutation, local, minGens, remote GenVector, dID DeviceID) error {
+func (i *syncInitiator) updateStoreAndSync(ctx context.T, local, minGens, remote GenVector, dID DeviceID) error {
// TODO(hpucha): Eliminate reaching into syncd's lock.
i.syncd.lock.Lock()
defer i.syncd.lock.Unlock()
+ var m []raw.Mutation
+ for obj, st := range i.updObjects {
+ if !st.isConflict {
+ rec, err := i.getLogRec(obj, st.newHead)
+ if err != nil {
+ return err
+ }
+ st.resolvVal = &rec.Value
+ // Sanity check.
+ if st.resolvVal.Mutation.Version != st.newHead {
+ return fmt.Errorf("bad mutation %d %d",
+ st.resolvVal.Mutation.Version, st.newHead)
+ }
+ }
+
+ // If the local version is picked, no further updates
+ // to the store are needed. If the remote version is
+ // picked, we put it in the store.
+ if st.resolvVal.Mutation.Version != st.oldHead {
+ // Append to mutations.
+ st.resolvVal.Mutation.PriorVersion = st.oldHead
+ vlog.VI(2).Infof("updateStoreAndSync:: appending mutation %v for obj %v",
+ st.resolvVal.Mutation, obj)
+ m = append(m, st.resolvVal.Mutation)
+ }
+ }
+
// TODO(hpucha): We will hold the lock across PutMutations rpc
// to prevent a race with watcher. The next iteration will
// clean up this coordination.
@@ -553,30 +572,68 @@
return nil
}
+// getLogRec returns the log record corresponding to a given object and its version.
+func (i *syncInitiator) getLogRec(obj storage.ID, vers storage.Version) (*LogRec, error) {
+ logKey, err := i.syncd.dag.getLogrec(obj, vers)
+ if err != nil {
+ return nil, err
+ }
+ dev, gen, lsn, err := splitLogRecKey(logKey)
+ if err != nil {
+ return nil, err
+ }
+ rec, err := i.syncd.log.getLogRec(dev, gen, lsn)
+ if err != nil {
+ return nil, err
+ }
+ return rec, nil
+}
+
// updateLogAndDag updates the log and dag data structures on a successful store put.
func (i *syncInitiator) updateLogAndDag() error {
for obj, st := range i.updObjects {
if st.isConflict {
// Object had a conflict, which was resolved successfully.
// Put is successful, create a log record.
- parents := []storage.Version{st.newHead, st.oldHead}
- rec, err := i.syncd.log.createLocalLogRec(obj, st.resolvVal.Mutation.Version, parents, st.resolvVal)
+ var err error
+ var rec *LogRec
+
+ switch {
+ case st.resolvVal.Mutation.Version == st.oldHead:
+ // Local version was blessed as the conflict resolution.
+ rec, err = i.syncd.log.createLocalLinkLogRec(obj, st.oldHead, st.newHead)
+ case st.resolvVal.Mutation.Version == st.newHead:
+ // Remote version was blessed as the conflict resolution.
+ rec, err = i.syncd.log.createLocalLinkLogRec(obj, st.newHead, st.oldHead)
+ default:
+ // New version was created to resolve the conflict.
+ parents := []storage.Version{st.newHead, st.oldHead}
+ rec, err = i.syncd.log.createLocalLogRec(obj, st.resolvVal.Mutation.Version, parents, st.resolvVal)
+
+ }
if err != nil {
return err
}
-
logKey, err := i.syncd.log.putLogRec(rec)
if err != nil {
return err
}
-
- // Put is successful, add a new DAG node.
- if err = i.syncd.dag.addNode(obj, st.resolvVal.Mutation.Version, false, parents, logKey); err != nil {
+ // Add a new DAG node.
+ switch rec.RecType {
+ case NodeRec:
+ err = i.syncd.dag.addNode(obj, rec.CurVers, false, rec.Parents, logKey)
+ case LinkRec:
+ err = i.syncd.dag.addParent(obj, rec.CurVers, rec.Parents[0], false)
+ default:
+ return fmt.Errorf("unknown log record type")
+ }
+ if err != nil {
return err
}
}
- // Move the head.
+ // Move the head. This should be idempotent. We may
+ // move head to the local head in some cases.
if err := i.syncd.dag.moveHead(obj, st.resolvVal.Mutation.Version); err != nil {
return err
}
diff --git a/runtimes/google/vsync/initiator_test.go b/runtimes/google/vsync/initiator_test.go
index 3c9a063..468c882 100644
--- a/runtimes/google/vsync/initiator_test.go
+++ b/runtimes/google/vsync/initiator_test.go
@@ -172,22 +172,27 @@
t.Errorf("GetNode() can not find object %d %d in DAG, err %v", objid, i, err)
}
}
-
if err := s.hdlInitiator.detectConflicts(); err != nil {
t.Fatalf("detectConflicts failed with err %v", err)
}
if len(s.hdlInitiator.updObjects) != 1 {
t.Errorf("Unexpected number of updated objects %d", len(s.hdlInitiator.updObjects))
}
- m, err := s.hdlInitiator.resolveConflicts()
- if err != nil {
+ st := s.hdlInitiator.updObjects[objid]
+ if st.isConflict {
+ t.Errorf("Detected a conflict %v", st)
+ }
+ if st.newHead != 2 || st.oldHead != storage.NoVersion {
+ t.Errorf("Conflict detection didn't succeed %v", st)
+ }
+ if err := s.hdlInitiator.resolveConflicts(); err != nil {
t.Fatalf("resolveConflicts failed with err %v", err)
}
- if len(m) != 1 || m[0].PriorVersion != storage.NoVersion || m[0].Version != 2 {
- t.Errorf("Unexpected mutations %v", m)
+ if err := s.hdlInitiator.updateStoreAndSync(nil, GenVector{}, minGens, GenVector{}, "VeyronPhone"); err != nil {
+ t.Fatalf("updateStoreAndSync failed with err %v", err)
}
- if err = s.hdlInitiator.updateLogAndDag(); err != nil {
- t.Fatalf("updateLogAndDag failed with err %v", err)
+ if st.resolvVal.Mutation.PriorVersion != storage.NoVersion || st.resolvVal.Mutation.Version != 2 {
+ t.Errorf("Mutation generation is not accurate %v", st)
}
if s.log.head.Curgen != 1 || s.log.head.Curlsn != 0 || s.log.head.Curorder != 1 {
t.Errorf("Data mismatch in log header %v", s.log.head)
@@ -270,15 +275,21 @@
if len(s.hdlInitiator.updObjects) != 1 {
t.Errorf("Unexpected number of updated objects %d", len(s.hdlInitiator.updObjects))
}
- m, err := s.hdlInitiator.resolveConflicts()
- if err != nil {
+ st := s.hdlInitiator.updObjects[objid]
+ if st.isConflict {
+ t.Errorf("Detected a conflict %v", st)
+ }
+ if st.newHead != 2 || st.oldHead != storage.NoVersion {
+ t.Errorf("Conflict detection didn't succeed %v", st)
+ }
+ if err := s.hdlInitiator.resolveConflicts(); err != nil {
t.Fatalf("resolveConflicts failed with err %v", err)
}
- if len(m) != 1 || m[0].PriorVersion != storage.NoVersion || m[0].Version != 2 {
- t.Errorf("Unexpected mutations %v", m)
+ if err := s.hdlInitiator.updateStoreAndSync(nil, GenVector{}, minGens, GenVector{}, "VeyronPhone"); err != nil {
+ t.Fatalf("updateStoreAndSync failed with err %v", err)
}
- if err = s.hdlInitiator.updateLogAndDag(); err != nil {
- t.Fatalf("updateLogAndDag failed with err %v", err)
+ if st.resolvVal.Mutation.PriorVersion != storage.NoVersion || st.resolvVal.Mutation.Version != 2 {
+ t.Errorf("Mutation generation is not accurate %v", st)
}
if s.log.head.Curgen != 1 || s.log.head.Curlsn != 0 || s.log.head.Curorder != 1 {
t.Errorf("Data mismatch in log header %v", s.log.head)
@@ -362,22 +373,27 @@
v = v + 1
}
}
-
if err := s.hdlInitiator.detectConflicts(); err != nil {
t.Fatalf("detectConflicts failed with err %v", err)
}
if len(s.hdlInitiator.updObjects) != 1 {
t.Errorf("Unexpected number of updated objects %d", len(s.hdlInitiator.updObjects))
}
- m, err := s.hdlInitiator.resolveConflicts()
- if err != nil {
+ st := s.hdlInitiator.updObjects[objid]
+ if st.isConflict {
+ t.Errorf("Detected a conflict %v", st)
+ }
+ if st.newHead != 5 || st.oldHead != 2 {
+ t.Errorf("Conflict detection didn't succeed %v", st)
+ }
+ if err := s.hdlInitiator.resolveConflicts(); err != nil {
t.Fatalf("resolveConflicts failed with err %v", err)
}
- if len(m) != 1 || m[0].PriorVersion != 2 || m[0].Version != 5 {
- t.Errorf("Unexpected versions %v", m[0])
+ if err := s.hdlInitiator.updateStoreAndSync(nil, GenVector{}, minGens, GenVector{}, "VeyronPhone"); err != nil {
+ t.Fatalf("updateStoreAndSync failed with err %v", err)
}
- if err = s.hdlInitiator.updateLogAndDag(); err != nil {
- t.Fatalf("updateLogAndDag failed with err %v", err)
+ if st.resolvVal.Mutation.PriorVersion != 2 || st.resolvVal.Mutation.Version != 5 {
+ t.Errorf("Mutation generation is not accurate %v", st)
}
if s.log.head.Curgen != 1 || s.log.head.Curlsn != 3 || s.log.head.Curorder != 1 {
t.Errorf("Data mismatch in log header %v", s.log.head)
@@ -437,16 +453,14 @@
t.Errorf("Data mismatch for generation metadata: %v instead of %v",
curVal, expVal)
}
-
if err := s.hdlInitiator.detectConflicts(); err != nil {
t.Fatalf("detectConflicts failed with err %v", err)
}
- m, err := s.hdlInitiator.resolveConflicts()
- if err != nil {
+ if err := s.hdlInitiator.resolveConflicts(); err != nil {
t.Fatalf("resolveConflicts failed with err %v", err)
}
- if err = s.hdlInitiator.updateLogAndDag(); err != nil {
- t.Fatalf("updateLogAndDag failed with err %v", err)
+ if err := s.hdlInitiator.updateStoreAndSync(nil, GenVector{}, minGens, GenVector{}, "VeyronPhone"); err != nil {
+ t.Fatalf("updateStoreAndSync failed with err %v", err)
}
objid, err := strToObjID("12345")
@@ -466,6 +480,9 @@
if curRec.ObjID != objid {
t.Errorf("Data mismatch in log record %v", curRec)
}
+ if devid == "VeyronTab" && index == 3 && curRec.RecType != LinkRec {
+ t.Errorf("Data mismatch in log record %v", curRec)
+ }
// Verify DAG state.
if _, err := s.dag.getNode(objid, v); err != nil {
t.Errorf("GetNode() can not find object %d %d in DAG, err %v", objid, i, err)
@@ -473,19 +490,25 @@
v = v + 1
}
}
-
- if len(m) != 1 || len(s.hdlInitiator.updObjects) != 1 {
- t.Errorf("Unexpected number of updated objects %d %d", len(m), len(s.hdlInitiator.updObjects))
+ if len(s.hdlInitiator.updObjects) != 1 {
+ t.Errorf("Unexpected number of updated objects %d", len(s.hdlInitiator.updObjects))
}
- if m[0].PriorVersion != 2 {
- t.Errorf("Unexpected version %v", m[0])
+ st := s.hdlInitiator.updObjects[objid]
+ if !st.isConflict {
+ t.Errorf("Didn't detect a conflict %v", st)
+ }
+ if st.newHead != 5 || st.oldHead != 2 {
+ t.Errorf("Conflict detection didn't succeed %v", st)
+ }
+ if st.resolvVal.Mutation.PriorVersion != 2 || st.resolvVal.Mutation.Version != 5 {
+ t.Errorf("Mutation generation is not accurate %v", st)
}
// Curlsn == 4 for the log record that resolves conflict.
if s.log.head.Curgen != 1 || s.log.head.Curlsn != 4 || s.log.head.Curorder != 1 {
t.Errorf("Data mismatch in log header %v", s.log.head)
}
// Verify DAG state.
- if head, err := s.dag.getHead(objid); err != nil || head <= 5 {
+ if head, err := s.dag.getHead(objid); err != nil || head != 5 {
t.Errorf("Invalid object %d head in DAG %s, err %v", objid, head, err)
}
}
@@ -555,12 +578,11 @@
if err := s.hdlInitiator.detectConflicts(); err != nil {
t.Fatalf("detectConflicts failed with err %v", err)
}
- m, err := s.hdlInitiator.resolveConflicts()
- if err != nil {
+ if err := s.hdlInitiator.resolveConflicts(); err != nil {
t.Fatalf("resolveConflicts failed with err %v", err)
}
- if err = s.hdlInitiator.updateLogAndDag(); err != nil {
- t.Fatalf("updateLogAndDag failed with err %v", err)
+ if err := s.hdlInitiator.updateStoreAndSync(nil, GenVector{}, minGens, GenVector{}, "VeyronPhone"); err != nil {
+ t.Fatalf("updateStoreAndSync failed with err %v", err)
}
objid, err := strToObjID("12345")
@@ -580,6 +602,9 @@
if curRec.ObjID != objid {
t.Errorf("Data mismatch in log record %v", curRec)
}
+ if devid == "VeyronTab" && index == 3 && curRec.RecType != LinkRec {
+ t.Errorf("Data mismatch in log record %v", curRec)
+ }
// Verify DAG state.
if _, err := s.dag.getNode(objid, v); err != nil {
t.Errorf("GetNode() can not find object %d %d in DAG, err %v", objid, i, err)
@@ -587,18 +612,357 @@
v = v + 1
}
}
- if len(m) != 1 || len(s.hdlInitiator.updObjects) != 1 {
- t.Errorf("Unexpected number of updated objects %d %d", len(m), len(s.hdlInitiator.updObjects))
+ if len(s.hdlInitiator.updObjects) != 1 {
+ t.Errorf("Unexpected number of updated objects %d", len(s.hdlInitiator.updObjects))
}
- if m[0].PriorVersion != 2 {
- t.Errorf("Unexpected version %v", m[0])
+ st := s.hdlInitiator.updObjects[objid]
+ if !st.isConflict {
+ t.Errorf("Didn't detect a conflict %v", st)
+ }
+ if st.newHead != 5 || st.oldHead != 2 {
+ t.Errorf("Conflict detection didn't succeed %v", st)
+ }
+ if st.resolvVal.Mutation.PriorVersion != 2 || st.resolvVal.Mutation.Version != 5 {
+ t.Errorf("Mutation generation is not accurate %v", st)
}
// Curlsn == 4 for the log record that resolves conflict.
if s.log.head.Curgen != 1 || s.log.head.Curlsn != 4 || s.log.head.Curorder != 2 {
t.Errorf("Data mismatch in log header %v", s.log.head)
}
// Verify DAG state.
- if head, err := s.dag.getHead(objid); err != nil || head <= 5 {
+ if head, err := s.dag.getHead(objid); err != nil || head != 5 {
+ t.Errorf("Invalid object %d head in DAG %s, err %v", objid, head, err)
+ }
+}
+
+// TestInitiatorBlessNoConf0 tests that a local and a remote log
+// record stream can be correctly applied, when the conflict is
+// resolved by a blessing. In this test, local head of the object is
+// unchanged at the end of replay. Commands are in files
+// testdata/<local-init-00.sync,remote-noconf-link-00.log.sync>.
+func TestInitiatorBlessNoConf0(t *testing.T) {
+ dir, err := createTempDir()
+ if err != nil {
+ t.Errorf("Could not create tempdir %v", err)
+ }
+ // Set a large value to prevent the threads from firing.
+ // Test is not thread safe.
+ peerSyncInterval = 1 * time.Hour
+ garbageCollectInterval = 1 * time.Hour
+ s := NewSyncd("", "", "VeyronTab", dir, "", 0)
+
+ defer s.Close()
+ defer os.RemoveAll(dir)
+
+ if _, err = logReplayCommands(s.log, "local-init-00.sync"); err != nil {
+ t.Error(err)
+ }
+ stream, err := createReplayStream("remote-noconf-link-00.log.sync")
+ if err != nil {
+ t.Fatalf("createReplayStream failed with err %v", err)
+ }
+
+ var minGens GenVector
+ if minGens, err = s.hdlInitiator.processLogStream(stream); err != nil {
+ t.Fatalf("processLogStream failed with err %v", err)
+ }
+ if err := s.hdlInitiator.detectConflicts(); err != nil {
+ t.Fatalf("detectConflicts failed with err %v", err)
+ }
+ // Check that there are no conflicts.
+ if len(s.hdlInitiator.updObjects) != 1 {
+ t.Errorf("Too many objects %v", len(s.hdlInitiator.updObjects))
+ }
+ objid, err := strToObjID("12345")
+ if err != nil {
+ t.Errorf("Could not create objid %v", err)
+ }
+ st := s.hdlInitiator.updObjects[objid]
+ if st.isConflict {
+ t.Errorf("Detected a conflict %v", st)
+ }
+ if st.newHead != 2 || st.oldHead != 2 {
+ t.Errorf("Conflict detection didn't succeed %v", st)
+ }
+
+ if err := s.hdlInitiator.resolveConflicts(); err != nil {
+ t.Fatalf("resolveConflicts failed with err %v", err)
+ }
+ if err := s.hdlInitiator.updateStoreAndSync(nil, GenVector{}, minGens, GenVector{}, "VeyronPhone"); err != nil {
+ t.Fatalf("updateStoreAndSync failed with err %v", err)
+ }
+ if st.resolvVal.Mutation.Version != 2 {
+ t.Errorf("Mutation generation is not accurate %v", st)
+ }
+ // No new log records should be added.
+ if s.log.head.Curgen != 1 || s.log.head.Curlsn != 3 || s.log.head.Curorder != 1 {
+ t.Errorf("Data mismatch in log header %v", s.log.head)
+ }
+ // Verify DAG state.
+ if head, err := s.dag.getHead(objid); err != nil || head != 2 {
+ t.Errorf("Invalid object %d head in DAG %s, err %v", objid, head, err)
+ }
+}
+
+// TestInitiatorBlessNoConf1 tests that a local and a remote log
+// record stream can be correctly applied, when the conflict is
+// resolved by a blessing. In this test, local head of the object is
+// updated at the end of the replay. Commands are in files
+// testdata/<local-init-00.sync,remote-noconf-link-01.log.sync>.
+func TestInitiatorBlessNoConf1(t *testing.T) {
+ dir, err := createTempDir()
+ if err != nil {
+ t.Errorf("Could not create tempdir %v", err)
+ }
+ // Set a large value to prevent the threads from firing.
+ // Test is not thread safe.
+ peerSyncInterval = 1 * time.Hour
+ garbageCollectInterval = 1 * time.Hour
+ s := NewSyncd("", "", "VeyronTab", dir, "", 0)
+
+ defer s.Close()
+ defer os.RemoveAll(dir)
+
+ if _, err = logReplayCommands(s.log, "local-init-00.sync"); err != nil {
+ t.Error(err)
+ }
+ stream, err := createReplayStream("remote-noconf-link-01.log.sync")
+ if err != nil {
+ t.Fatalf("createReplayStream failed with err %v", err)
+ }
+
+ var minGens GenVector
+ if minGens, err = s.hdlInitiator.processLogStream(stream); err != nil {
+ t.Fatalf("processLogStream failed with err %v", err)
+ }
+ if err := s.hdlInitiator.detectConflicts(); err != nil {
+ t.Fatalf("detectConflicts failed with err %v", err)
+ }
+ // Check that there are no conflicts.
+ if len(s.hdlInitiator.updObjects) != 1 {
+ t.Errorf("Too many objects %v", len(s.hdlInitiator.updObjects))
+ }
+ objid, err := strToObjID("12345")
+ if err != nil {
+ t.Errorf("Could not create objid %v", err)
+ }
+ st := s.hdlInitiator.updObjects[objid]
+ if st.isConflict {
+ t.Errorf("Detected a conflict %v", st)
+ }
+ if st.newHead != 3 || st.oldHead != 2 {
+ t.Errorf("Conflict detection didn't succeed %v", st)
+ }
+
+ if err := s.hdlInitiator.resolveConflicts(); err != nil {
+ t.Fatalf("resolveConflicts failed with err %v", err)
+ }
+ if err := s.hdlInitiator.updateStoreAndSync(nil, GenVector{}, minGens, GenVector{}, "VeyronPhone"); err != nil {
+ t.Fatalf("updateStoreAndSync failed with err %v", err)
+ }
+ if st.resolvVal.Mutation.Version != 3 || st.resolvVal.Mutation.PriorVersion != 2 {
+ t.Errorf("Mutation generation is not accurate %v", st)
+ }
+ // No new log records should be added.
+ if s.log.head.Curgen != 1 || s.log.head.Curlsn != 3 || s.log.head.Curorder != 1 {
+ t.Errorf("Data mismatch in log header %v", s.log.head)
+ }
+ // Verify DAG state.
+ if head, err := s.dag.getHead(objid); err != nil || head != 3 {
+ t.Errorf("Invalid object %d head in DAG %s, err %v", objid, head, err)
+ }
+}
+
+// TestInitiatorBlessNoConf2 tests that a local and a remote log
+// record stream can be correctly applied, when the conflict is
+// resolved by a blessing. In this test, local head of the object is
+// updated at the end of the first replay. In the second replay, a
+// conflict resolved locally is rediscovered since it was also
+// resolved remotely. Commands are in files
+// testdata/<local-init-00.sync,remote-noconf-link-02.log.sync,
+// remote-noconf-link-repeat.log.sync>.
+func TestInitiatorBlessNoConf2(t *testing.T) {
+ dir, err := createTempDir()
+ if err != nil {
+ t.Errorf("Could not create tempdir %v", err)
+ }
+ // Set a large value to prevent the threads from firing.
+ // Test is not thread safe.
+ peerSyncInterval = 1 * time.Hour
+ garbageCollectInterval = 1 * time.Hour
+ s := NewSyncd("", "", "VeyronTab", dir, "", 0)
+
+ defer s.Close()
+ defer os.RemoveAll(dir)
+
+ if _, err = logReplayCommands(s.log, "local-init-00.sync"); err != nil {
+ t.Error(err)
+ }
+ stream, err := createReplayStream("remote-noconf-link-02.log.sync")
+ if err != nil {
+ t.Fatalf("createReplayStream failed with err %v", err)
+ }
+
+ var minGens GenVector
+ if minGens, err = s.hdlInitiator.processLogStream(stream); err != nil {
+ t.Fatalf("processLogStream failed with err %v", err)
+ }
+ if err := s.hdlInitiator.detectConflicts(); err != nil {
+ t.Fatalf("detectConflicts failed with err %v", err)
+ }
+ // Check that there are no conflicts.
+ if len(s.hdlInitiator.updObjects) != 1 {
+ t.Errorf("Too many objects %v", len(s.hdlInitiator.updObjects))
+ }
+ objid, err := strToObjID("12345")
+ if err != nil {
+ t.Errorf("Could not create objid %v", err)
+ }
+ st := s.hdlInitiator.updObjects[objid]
+ if st.isConflict {
+ t.Errorf("Detected a conflict %v", st)
+ }
+ if st.newHead != 4 || st.oldHead != 2 {
+ t.Errorf("Conflict detection didn't succeed %v", st)
+ }
+
+ if err := s.hdlInitiator.resolveConflicts(); err != nil {
+ t.Fatalf("resolveConflicts failed with err %v", err)
+ }
+ if err := s.hdlInitiator.updateStoreAndSync(nil, GenVector{"VeyronTab": 0}, minGens, GenVector{}, "VeyronPhone"); err != nil {
+ t.Fatalf("updateStoreAndSync failed with err %v", err)
+ }
+ if st.resolvVal.Mutation.Version != 4 || st.resolvVal.Mutation.PriorVersion != 2 {
+ t.Errorf("Mutation generation is not accurate %v", st)
+ }
+ // No new log records should be added.
+ if s.log.head.Curgen != 1 || s.log.head.Curlsn != 3 || s.log.head.Curorder != 2 {
+ t.Errorf("Data mismatch in log header %v", s.log.head)
+ }
+ // Verify DAG state.
+ if head, err := s.dag.getHead(objid); err != nil || head != 4 {
+ t.Errorf("Invalid object %d head in DAG %s, err %v", objid, head, err)
+ }
+
+ // Test simultaneous conflict resolution.
+ stream, err = createReplayStream("remote-noconf-link-repeat.log.sync")
+ if err != nil {
+ t.Fatalf("createReplayStream failed with err %v", err)
+ }
+
+ if minGens, err = s.hdlInitiator.processLogStream(stream); err != nil {
+ t.Fatalf("processLogStream failed with err %v", err)
+ }
+ if err := s.hdlInitiator.detectConflicts(); err != nil {
+ t.Fatalf("detectConflicts failed with err %v", err)
+ }
+ // Check that there are no conflicts.
+ if len(s.hdlInitiator.updObjects) != 1 {
+ t.Errorf("Too many objects %v", len(s.hdlInitiator.updObjects))
+ }
+ st = s.hdlInitiator.updObjects[objid]
+ if st.isConflict {
+ t.Errorf("Detected a conflict %v", st)
+ }
+ if st.newHead != 4 || st.oldHead != 4 {
+ t.Errorf("Conflict detection didn't succeed %v", st)
+ }
+
+ if err := s.hdlInitiator.resolveConflicts(); err != nil {
+ t.Fatalf("resolveConflicts failed with err %v", err)
+ }
+ if err := s.hdlInitiator.updateStoreAndSync(nil, GenVector{}, minGens, GenVector{}, "VeyronLaptop"); err != nil {
+ t.Fatalf("updateStoreAndSync failed with err %v", err)
+ }
+ if st.resolvVal.Mutation.Version != 4 {
+ t.Errorf("Mutation generation is not accurate %v", st)
+ }
+ // No new log records should be added.
+ if s.log.head.Curgen != 1 || s.log.head.Curlsn != 3 || s.log.head.Curorder != 3 {
+ t.Errorf("Data mismatch in log header %v", s.log.head)
+ }
+ // Verify DAG state.
+ if head, err := s.dag.getHead(objid); err != nil || head != 4 {
+ t.Errorf("Invalid object %d head in DAG %s, err %v", objid, head, err)
+ }
+}
+
+// TestInitiatorBlessConf tests that a local and a remote log record
+// stream can be correctly applied, when the conflict is resolved by a
+// blessing. Commands are in files
+// testdata/<local-init-00.sync,remote-conf-link.log.sync>.
+func TestInitiatorBlessConf(t *testing.T) {
+ dir, err := createTempDir()
+ if err != nil {
+ t.Errorf("Could not create tempdir %v", err)
+ }
+ // Set a large value to prevent the threads from firing.
+ // Test is not thread safe.
+ peerSyncInterval = 1 * time.Hour
+ garbageCollectInterval = 1 * time.Hour
+ s := NewSyncd("", "", "VeyronTab", dir, "", 0)
+
+ defer s.Close()
+ defer os.RemoveAll(dir)
+
+ if _, err = logReplayCommands(s.log, "local-init-00.sync"); err != nil {
+ t.Error(err)
+ }
+ stream, err := createReplayStream("remote-conf-link.log.sync")
+ if err != nil {
+ t.Fatalf("createReplayStream failed with err %v", err)
+ }
+
+ var minGens GenVector
+ if minGens, err = s.hdlInitiator.processLogStream(stream); err != nil {
+ t.Fatalf("processLogStream failed with err %v", err)
+ }
+ if err := s.hdlInitiator.detectConflicts(); err != nil {
+ t.Fatalf("detectConflicts failed with err %v", err)
+ }
+ // Check that there are no conflicts.
+ if len(s.hdlInitiator.updObjects) != 1 {
+ t.Errorf("Too many objects %v", len(s.hdlInitiator.updObjects))
+ }
+ objid, err := strToObjID("12345")
+ if err != nil {
+ t.Errorf("Could not create objid %v", err)
+ }
+ st := s.hdlInitiator.updObjects[objid]
+ if !st.isConflict {
+ t.Errorf("Didn't detect a conflict %v", st)
+ }
+ if st.newHead != 3 || st.oldHead != 2 || st.ancestor != 1 {
+ t.Errorf("Conflict detection didn't succeed %v", st)
+ }
+
+ if err := s.hdlInitiator.resolveConflicts(); err != nil {
+ t.Fatalf("resolveConflicts failed with err %v", err)
+ }
+ if st.resolvVal.Mutation.Version != 3 {
+ t.Errorf("Mutation generation is not accurate %v", st)
+ }
+
+ if err := s.hdlInitiator.updateStoreAndSync(nil, GenVector{}, minGens, GenVector{}, "VeyronPhone"); err != nil {
+ t.Fatalf("updateStoreAndSync failed with err %v", err)
+ }
+ if st.resolvVal.Mutation.Version != 3 || st.resolvVal.Mutation.PriorVersion != 2 {
+ t.Errorf("Mutation generation is not accurate %v", st)
+ }
+ // New log records should be added.
+ if s.log.head.Curgen != 1 || s.log.head.Curlsn != 4 || s.log.head.Curorder != 1 {
+ t.Errorf("Data mismatch in log header %v", s.log.head)
+ }
+ curRec, err := s.log.getLogRec(s.id, GenID(1), LSN(3))
+ if err != nil || curRec == nil {
+ t.Fatalf("GetLogRec() can not find object %s:1:3 in log file err %v",
+ s.id, err)
+ }
+ if curRec.ObjID != objid || curRec.RecType != LinkRec {
+ t.Errorf("Data mismatch in log record %v", curRec)
+ }
+ // Verify DAG state.
+ if head, err := s.dag.getHead(objid); err != nil || head != 3 {
t.Errorf("Invalid object %d head in DAG %s, err %v", objid, head, err)
}
}
diff --git a/runtimes/google/vsync/replay_test.go b/runtimes/google/vsync/replay_test.go
index 41e82cd..02cd561 100644
--- a/runtimes/google/vsync/replay_test.go
+++ b/runtimes/google/vsync/replay_test.go
@@ -22,6 +22,8 @@
addLocal = iota
addRemote
setDevTable
+ linkLocal
+ linkRemote
)
type syncCommand struct {
@@ -140,6 +142,38 @@
cmd := syncCommand{cmd: setDevTable, devID: DeviceID(args[1]), genVec: genVec}
cmds = append(cmds, cmd)
+ case "linkl", "linkr":
+ expNargs := 6
+ if nargs != expNargs {
+ return nil, fmt.Errorf("%s:%d: need %d args instead of %d", file, lineno, expNargs, nargs)
+ }
+
+ version, err := strToVersion(args[2])
+ if err != nil {
+ return nil, fmt.Errorf("%s:%d: invalid version: %s", file, lineno, args[2])
+ }
+ if args[3] == "" {
+ return nil, fmt.Errorf("%s:%d: parent (to-node) version not specified", file, lineno)
+ }
+ if args[4] != "" {
+ return nil, fmt.Errorf("%s:%d: cannot specify a 2nd parent (to-node): %s", file, lineno, args[4])
+ }
+ parent, err := strToVersion(args[3])
+ if err != nil {
+ return nil, fmt.Errorf("%s:%d: invalid parent (to-node) version: %s", file, lineno, args[3])
+ }
+
+ cmd := syncCommand{version: version, parents: []storage.Version{parent}, logrec: args[5]}
+ if args[0] == "linkl" {
+ cmd.cmd = linkLocal
+ } else {
+ cmd.cmd = linkRemote
+ }
+ if cmd.objID, err = strToObjID(args[1]); err != nil {
+ return nil, fmt.Errorf("%s:%d: invalid object ID: %s", file, lineno, args[1])
+ }
+ cmds = append(cmds, cmd)
+
default:
return nil, fmt.Errorf("%s:%d: invalid operation: %s", file, lineno, args[0])
}
@@ -171,6 +205,20 @@
return fmt.Errorf("cannot add remote node %d:%d to DAG: %v", cmd.objID, cmd.version, err)
}
dag.flush()
+
+ case linkLocal:
+ if err = dag.addParent(cmd.objID, cmd.version, cmd.parents[0], false); err != nil {
+ return fmt.Errorf("cannot add local parent %d to DAG node %d:%d: %v",
+ cmd.parents[0], cmd.objID, cmd.version, err)
+ }
+ dag.flush()
+
+ case linkRemote:
+ if err = dag.addParent(cmd.objID, cmd.version, cmd.parents[0], true); err != nil {
+ return fmt.Errorf("cannot add remote parent %d to DAG node %d:%d: %v",
+ cmd.parents[0], cmd.objID, cmd.version, err)
+ }
+ dag.flush()
}
}
return nil
diff --git a/runtimes/google/vsync/util_test.go b/runtimes/google/vsync/util_test.go
index 783d23f..bd9356c 100644
--- a/runtimes/google/vsync/util_test.go
+++ b/runtimes/google/vsync/util_test.go
@@ -78,7 +78,7 @@
for _, cmd := range cmds {
switch cmd.cmd {
case addLocal:
- err = log.processWatchRecord(cmd.objID, cmd.version, cmd.parents, &LogValue{})
+ err = log.processWatchRecord(cmd.objID, cmd.version, cmd.parents, &LogValue{Mutation: raw.Mutation{Version: cmd.version}})
if err != nil {
return nil, fmt.Errorf("cannot replay local log records %d:%s err %v",
cmd.objID, cmd.version, err)
@@ -121,25 +121,31 @@
stream := newStream()
for _, cmd := range cmds {
+ id, gnum, lsn, err := splitLogRecKey(cmd.logrec)
+ if err != nil {
+ return nil, err
+ }
+ rec := LogRec{
+ DevID: id,
+ GNum: gnum,
+ LSN: lsn,
+ ObjID: cmd.objID,
+ CurVers: cmd.version,
+ Parents: cmd.parents,
+ Value: LogValue{
+ Mutation: raw.Mutation{Version: cmd.version},
+ },
+ }
+
switch cmd.cmd {
case addRemote:
- id, gnum, lsn, err := splitLogRecKey(cmd.logrec)
- if err != nil {
- return nil, err
- }
- rec := LogRec{
- DevID: id,
- GNum: gnum,
- LSN: lsn,
- ObjID: cmd.objID,
- CurVers: cmd.version,
- Parents: cmd.parents,
- Value: LogValue{
- Mutation: raw.Mutation{Version: cmd.version},
- },
- }
- stream.add(rec)
+ rec.RecType = NodeRec
+ case linkRemote:
+ rec.RecType = LinkRec
+ default:
+ return nil, err
}
+ stream.add(rec)
}
return stream, nil
diff --git a/runtimes/google/vsync/vsync.vdl b/runtimes/google/vsync/vsync.vdl
index 4de7c9c..aa06ec9 100644
--- a/runtimes/google/vsync/vsync.vdl
+++ b/runtimes/google/vsync/vsync.vdl
@@ -15,13 +15,21 @@
// GenVector is the generation vector.
type GenVector map[DeviceID]GenID
+const (
+ // NodeRec type log record adds a new node in the dag.
+ NodeRec = byte(0)
+ // LinkRec type log record adds a new link in the dag.
+ LinkRec = byte(1)
+)
+
// LogRec represents a single log record that is exchanged between two
// peers.
//
// It contains log related metadata: DevID is the id of the
// device that created the log record, GNum is the ID of the
-// generation that the log record is part of, and LSN is the log
-// sequence number of the log record in the generation GNum.
+// generation that the log record is part of, LSN is the log
+// sequence number of the log record in the generation GNum,
+// and RecType is the type of log record.
//
// It also contains information relevant to the updates to an object
// in the store: ObjID is the id of the object that was
@@ -34,6 +42,7 @@
DevID DeviceID
GNum GenID
LSN LSN
+ RecType byte
// Object related information.
ObjID storage.ID
CurVers storage.Version
diff --git a/runtimes/google/vsync/vsync.vdl.go b/runtimes/google/vsync/vsync.vdl.go
index 2055734..e2120db 100644
--- a/runtimes/google/vsync/vsync.vdl.go
+++ b/runtimes/google/vsync/vsync.vdl.go
@@ -35,8 +35,9 @@
//
// It contains log related metadata: DevID is the id of the
// device that created the log record, GNum is the ID of the
-// generation that the log record is part of, and LSN is the log
-// sequence number of the log record in the generation GNum.
+// generation that the log record is part of, LSN is the log
+// sequence number of the log record in the generation GNum,
+// and RecType is the type of log record.
//
// It also contains information relevant to the updates to an object
// in the store: ObjID is the id of the object that was
@@ -46,9 +47,10 @@
// the object mutation.
type LogRec struct {
// Log related information.
- DevID DeviceID
- GNum GenID
- LSN LSN
+ DevID DeviceID
+ GNum GenID
+ LSN LSN
+ RecType byte
// Object related information.
ObjID storage.ID
CurVers storage.Version
@@ -71,6 +73,14 @@
Continue bool
}
+const (
+ // NodeRec type log record adds a new node in the dag.
+ NodeRec = byte(0)
+
+ // LinkRec type log record adds a new link in the dag.
+ LinkRec = byte(1)
+)
+
// Sync allows a device to GetDeltas from another device.
// Sync is the interface the client binds and uses.
// Sync_ExcludingUniversal is the interface without internal framework-added methods
@@ -303,6 +313,7 @@
_gen_wiretype.FieldType{Type: 0x41, Name: "DevID"},
_gen_wiretype.FieldType{Type: 0x42, Name: "GNum"},
_gen_wiretype.FieldType{Type: 0x45, Name: "LSN"},
+ _gen_wiretype.FieldType{Type: 0x46, Name: "RecType"},
_gen_wiretype.FieldType{Type: 0x47, Name: "ObjID"},
_gen_wiretype.FieldType{Type: 0x48, Name: "CurVers"},
_gen_wiretype.FieldType{Type: 0x49, Name: "Parents"},
diff --git a/runtimes/google/vsync/watcher.go b/runtimes/google/vsync/watcher.go
index a0801a7..43b2238 100644
--- a/runtimes/google/vsync/watcher.go
+++ b/runtimes/google/vsync/watcher.go
@@ -183,18 +183,9 @@
}
}
- // Flush the DAG and Log DBs. If the resume marker changed, update the device table and flush it.
- // TODO(rdaoud): this should be conditional, e.g. don't flush if Initiator is in-progress.
- // TODO(rdaoud): flushes can also be batched across multiple change-batches.
- w.syncd.dag.flush()
- if err := w.syncd.log.flush(); err != nil {
- return fmt.Errorf("cannot flush log DB: %s", err)
- }
+ // If the resume marker changed, update the device table.
if lastResmark != nil {
w.syncd.devtab.head.Resmark = lastResmark
- if err := w.syncd.devtab.flush(); err != nil {
- return fmt.Errorf("cannot flush device table DB: %s", err)
- }
}
return nil
diff --git a/security/caveat/caveat.go b/security/caveat/caveat.go
index 6cb4735..a0e0f11 100644
--- a/security/caveat/caveat.go
+++ b/security/caveat/caveat.go
@@ -59,8 +59,20 @@
return fmt.Errorf("%#v forbids RPCing with peer %s", c, ctx.LocalID())
}
+// NetworkType is a security.Caveat that restricts communication with the
+// remote process to a particular network ("tcp", "udp", "bluetooth" etc.)
+type NetworkType string
+
+func (cav NetworkType) Validate(ctx security.Context) error {
+ if ctx.RemoteEndpoint().Addr().Network() == string(cav) {
+ return nil
+ }
+ return fmt.Errorf("required network type %q, got %q", cav, ctx.RemoteEndpoint().Addr().Network())
+}
+
func init() {
vom.Register(Expiry{})
vom.Register(MethodRestriction(nil))
vom.Register(PeerIdentity(nil))
+ vom.Register(NetworkType(""))
}
diff --git a/security/caveat/caveat_test.go b/security/caveat/caveat_test.go
index 8c7efdf..b4f44f8 100644
--- a/security/caveat/caveat_test.go
+++ b/security/caveat/caveat_test.go
@@ -1,16 +1,27 @@
package caveat_test
import (
+ "net"
"testing"
"time"
"veyron/security/caveat"
+ "veyron2/naming"
"veyron2/security"
)
+// endpoint implements naming.Endpoint
+type endpoint struct {
+ naming.Endpoint
+ addr net.Addr
+}
+
+func (e endpoint) Addr() net.Addr { return e.addr }
+
type context struct {
- local, remote security.PublicID
- method string
+ local, remote security.PublicID
+ localEndpoint, remoteEndpoint endpoint
+ method string
}
func (c *context) Method() string { return c.method }
@@ -20,6 +31,8 @@
func (c *context) CaveatDischarges() security.CaveatDischargeMap { return nil }
func (c *context) LocalID() security.PublicID { return c.local }
func (c *context) RemoteID() security.PublicID { return c.remote }
+func (c *context) LocalEndpoint() naming.Endpoint { return &c.localEndpoint }
+func (c *context) RemoteEndpoint() naming.Endpoint { return &c.remoteEndpoint }
func TestCaveats(t *testing.T) {
var (
@@ -34,6 +47,8 @@
{&caveat.Expiry{IssueTime: now, ExpiryTime: now.Add(time.Hour)}, true},
{&caveat.Expiry{IssueTime: now.Add(-1 * time.Hour), ExpiryTime: now.Add(-1 * time.Minute)}, false},
{caveat.MethodRestriction(nil), false},
+ {caveat.NetworkType("udp"), false},
+ {caveat.NetworkType("tcp"), true},
{caveat.MethodRestriction{"Pause", "Play"}, true},
{caveat.MethodRestriction{"List"}, false},
{caveat.PeerIdentity(nil), false},
@@ -41,7 +56,7 @@
{caveat.PeerIdentity{"fake/carol"}, false},
{caveat.PeerIdentity{"fake/alice", "fake/carol"}, true},
}
- ctx := &context{local: alice, remote: bob, method: "Play"}
+ ctx := &context{local: alice, remote: bob, method: "Play", remoteEndpoint: endpoint{addr: &net.TCPAddr{}}}
for _, test := range tests {
if err := test.c.Validate(ctx); test.ok != (err == nil) {
t.Errorf("Caveat:%#v. Got error:%v, want error:%v", test.c, err, test.ok)
diff --git a/services/mgmt/application/impl/impl_test.go b/services/mgmt/application/impl/impl_test.go
index 4783058..756a46f 100644
--- a/services/mgmt/application/impl/impl_test.go
+++ b/services/mgmt/application/impl/impl_test.go
@@ -44,15 +44,15 @@
}
// Create client stubs for talking to the server.
- stub, err := iapplication.BindRepository(naming.JoinAddressName(endpoint.String(), "search"))
+ stub, err := iapplication.BindRepository(naming.JoinAddressName(endpoint.String(), "//search"))
if err != nil {
t.Fatalf("BindRepository() failed: %v", err)
}
- stubV1, err := iapplication.BindRepository(naming.JoinAddressName(endpoint.String(), "search/v1"))
+ stubV1, err := iapplication.BindRepository(naming.JoinAddressName(endpoint.String(), "//search/v1"))
if err != nil {
t.Fatalf("BindRepository() failed: %v", err)
}
- stubV2, err := iapplication.BindRepository(naming.JoinAddressName(endpoint.String(), "search/v2"))
+ stubV2, err := iapplication.BindRepository(naming.JoinAddressName(endpoint.String(), "//search/v2"))
if err != nil {
t.Fatalf("BindRepository() failed: %v", err)
}
diff --git a/services/mgmt/content/impl/impl_test.go b/services/mgmt/content/impl/impl_test.go
index 37792e1..ee4d7a2 100644
--- a/services/mgmt/content/impl/impl_test.go
+++ b/services/mgmt/content/impl/impl_test.go
@@ -9,6 +9,7 @@
"testing"
"veyron2"
+ "veyron2/naming"
"veyron2/rt"
"veyron2/services/mgmt/content"
)
@@ -88,13 +89,10 @@
if err != nil {
t.Fatalf("Listen(%v, %v) failed: %v", protocol, hostname, err)
}
- name := ""
- if err := server.Publish(name); err != nil {
- t.Fatalf("Publish(%v) failed: %v", name, err)
- }
// Create client stubs for talking to the server.
- stub, err := content.BindContent("/" + endpoint.String())
+ name := naming.JoinAddressName(endpoint.String(), "//")
+ stub, err := content.BindContent(name)
if err != nil {
t.Fatalf("BindContent() failed: %v", err)
}
@@ -112,7 +110,7 @@
}
// Download
- stub, err = content.BindContent("/" + endpoint.String() + "/" + checksum)
+ stub, err = content.BindContent(naming.Join(name, checksum))
if err != nil {
t.Fatalf("BindContent() failed: %v", err)
}
diff --git a/services/mgmt/node/impl/impl_test.go b/services/mgmt/node/impl/impl_test.go
index 2ca465c..7ca6f3f 100644
--- a/services/mgmt/node/impl/impl_test.go
+++ b/services/mgmt/node/impl/impl_test.go
@@ -180,13 +180,13 @@
defer runtime.Shutdown()
mtName, mtCleanup := startMountTable(t, runtime)
defer mtCleanup()
- mt := runtime.MountTable()
- // The local, client side MountTable is now relative to the
+ ns := runtime.Namespace()
+ // The local, client side Namespace is now relative to the
// MountTable server started above.
- mt.SetRoots([]string{mtName})
+ ns.SetRoots([]string{mtName})
ctx := runtime.NewContext()
- // Spawn a node manager with an identity blessed by the mounttable's
+ // Spawn a node manager with an identity blessed by the MountTable's
// identity under the name "test", and obtain its address.
//
// TODO(ataly): Eventually we want to use the same identity the node
@@ -197,7 +197,7 @@
defer child.Cleanup()
child.Expect("ready")
name := naming.Join(mtName, "nm")
- results, err := mt.Resolve(ctx, name)
+ results, err := ns.Resolve(ctx, name)
if err != nil {
t.Fatalf("Resolve(%v) failed: %v", name, err)
}
diff --git a/services/mgmt/node/impl/invoker.go b/services/mgmt/node/impl/invoker.go
index e32ff53..3a3df2e 100644
--- a/services/mgmt/node/impl/invoker.go
+++ b/services/mgmt/node/impl/invoker.go
@@ -430,7 +430,7 @@
return errOperationFailed
}
// Wait for the child process to start.
- testTimeout := 2 * time.Second
+ testTimeout := 10 * time.Second
if err := handle.WaitForReady(testTimeout); err != nil {
vlog.Errorf("WaitForReady(%v) failed: %v", testTimeout, err)
if err := cmd.Process.Kill(); err != nil {
diff --git a/services/mgmt/profile/impl/impl_test.go b/services/mgmt/profile/impl/impl_test.go
index 9a92045..b3d28df 100644
--- a/services/mgmt/profile/impl/impl_test.go
+++ b/services/mgmt/profile/impl/impl_test.go
@@ -7,6 +7,7 @@
"veyron/services/mgmt/profile"
istore "veyron/services/store/testutil"
+ "veyron2/naming"
"veyron2/rt"
)
@@ -58,7 +59,7 @@
t.Logf("Profile manager published at %v/%v", endpoint, name)
// Create client stubs for talking to the server.
- stub, err := profile.BindProfile("/" + endpoint.String() + "/linux/base")
+ stub, err := profile.BindProfile(naming.JoinAddressName(endpoint.String(), "//linux/base"))
if err != nil {
t.Fatalf("BindApplication() failed: %v", err)
}
diff --git a/services/mgmt/profile/impl/invoker.go b/services/mgmt/profile/impl/invoker.go
index b3cc3d9..2e4946c 100644
--- a/services/mgmt/profile/impl/invoker.go
+++ b/services/mgmt/profile/impl/invoker.go
@@ -70,7 +70,7 @@
}
func (i *invoker) Remove(context ipc.ServerContext) error {
- vlog.VI(0).Infof("%v.Remove(%v)", i.suffix)
+ vlog.VI(0).Infof("%v.Remove()", i.suffix)
transaction := primitives.NewTransaction(context)
path := path.Join("/profiles", i.suffix)
object := i.store.Bind(path)
diff --git a/services/mounttable/lib/mounttable_test.go b/services/mounttable/lib/mounttable_test.go
index 04616c1..f8744bc 100644
--- a/services/mounttable/lib/mounttable_test.go
+++ b/services/mounttable/lib/mounttable_test.go
@@ -22,9 +22,9 @@
"veyron2/vlog"
)
-// stupidMT is a version of naming.MountTable that we can control. This exists so that we have some
+// stupidNS is a version of naming.Namespace that we can control. This exists so that we have some
// firm ground to stand on vis a vis the stub interface.
-type stupidMT struct {
+type stupidNS struct {
id ipc.ClientOpt
}
@@ -41,27 +41,27 @@
t.Fatal(string(debug.Stack()))
}
-// quuxClient returns an ipc.Client that uses the quux mounttable for name
+// quuxClient returns an ipc.Client that uses the simple namespace for name
// resolution.
func quuxClient(id ipc.ClientOpt) ipc.Client {
- mt := stupidMT{id}
- c, err := rt.R().NewClient(id, veyron2.MountTable(mt))
+ ns := stupidNS{id}
+ c, err := rt.R().NewClient(id, veyron2.Namespace(ns))
if err != nil {
panic(err)
}
return c
}
-func (stupidMT) Mount(context.T, string, string, time.Duration) error {
+func (stupidNS) Mount(context.T, string, string, time.Duration) error {
return errors.New("unimplemented")
}
-func (stupidMT) Unmount(context.T, string, string) error {
+func (stupidNS) Unmount(context.T, string, string) error {
return errors.New("unimplemented")
}
// Resolve will only go one level deep, i.e., it doesn't walk past the first mount point.
-func (mt stupidMT) Resolve(ctx context.T, name string) ([]string, error) {
+func (ns stupidNS) Resolve(ctx context.T, name string) ([]string, error) {
vlog.VI(1).Infof("MyResolve %q", name)
address, suffix := naming.SplitAddressName(name)
if len(address) == 0 {
@@ -73,7 +73,7 @@
}
// Resolve via another
- objectPtr, err := mounttable.BindMountTable("/"+address+"//"+suffix, quuxClient(mt.id))
+ objectPtr, err := mounttable.BindMountTable("/"+address+"//"+suffix, quuxClient(ns.id))
if err != nil {
return nil, err
}
@@ -89,20 +89,20 @@
return servers, nil
}
-func (s stupidMT) Unresolve(ctx context.T, name string) ([]string, error) {
+func (s stupidNS) Unresolve(ctx context.T, name string) ([]string, error) {
return s.Resolve(ctx, name)
}
-func (stupidMT) ResolveToMountTable(ctx context.T, name string) ([]string, error) {
+func (stupidNS) ResolveToMountTable(ctx context.T, name string) ([]string, error) {
return nil, errors.New("ResolveToMountTable is not implemented in this MountTable")
}
// Glob implements naming.MountTable.Glob.
-func (stupidMT) Glob(ctx context.T, pattern string) (chan naming.MountEntry, error) {
+func (stupidNS) Glob(ctx context.T, pattern string) (chan naming.MountEntry, error) {
return nil, errors.New("Glob is not implemented in this MountTable")
}
-func (s stupidMT) SetRoots([]string) error {
+func (s stupidNS) SetRoots([]string) error {
return nil
}
@@ -302,7 +302,9 @@
expected []string
}{
{"*", []string{"one", "in", "of"}},
+ {"...", []string{"", "one", "in", "of", "one/bright", "in/the", "of/the", "one/bright/day", "in/the/middle", "of/the/night"}},
{"*/...", []string{"one", "in", "of", "one/bright", "in/the", "of/the", "one/bright/day", "in/the/middle", "of/the/night"}},
+ {"one/...", []string{"one", "one/bright", "one/bright/day"}},
{"*/the", []string{"in/the", "of/the"}},
{"*/the/...", []string{"in/the", "of/the", "in/the/middle", "of/the/night"}},
{"o*", []string{"one", "of"}},
diff --git a/services/store/memstore/blackbox/util.go b/services/store/memstore/blackbox/util.go
index c46baf0..2ff6bf1 100644
--- a/services/store/memstore/blackbox/util.go
+++ b/services/store/memstore/blackbox/util.go
@@ -4,7 +4,6 @@
"fmt"
"io"
"io/ioutil"
- "net"
"os"
"runtime"
"testing"
@@ -16,6 +15,7 @@
"veyron/services/store/service"
"veyron2/ipc"
+ "veyron2/naming"
"veyron2/security"
"veyron2/services/watch"
"veyron2/storage"
@@ -66,11 +66,11 @@
return nil
}
-func (rootContext) LocalAddr() net.Addr {
+func (rootContext) LocalEndpoint() naming.Endpoint {
return nil
}
-func (rootContext) RemoteAddr() net.Addr {
+func (rootContext) RemoteEndpoint() naming.Endpoint {
return nil
}
diff --git a/services/store/memstore/query/eval.go b/services/store/memstore/query/eval.go
index 7fd7035..06b8744 100644
--- a/services/store/memstore/query/eval.go
+++ b/services/store/memstore/query/eval.go
@@ -607,7 +607,16 @@
func (a argsSorter) Swap(i, j int) { a.results[i], a.results[j] = a.results[j], a.results[i] }
func (a argsSorter) Less(i, j int) bool {
for n, arg := range a.e.args {
- // TODO(kash): Look for "+" or "-" for sort ordering.
+ // Normally, exprUnary only supports numeric operands. As part of a sort
+ // expression however, it is possible to negate a string operand to
+ // cause a descending sort.
+ ascending := true
+ unaryArg, ok := arg.(*exprUnary)
+ if ok {
+ // Remove the +/- operator.
+ arg = unaryArg.operand
+ ascending = unaryArg.op == parse.OpPos
+ }
ival := arg.value(a.c, a.results[i])
jval := arg.value(a.c, a.results[j])
res, err := compare(a.c, ival, jval)
@@ -619,7 +628,11 @@
if res == 0 {
continue
}
- return res < 0
+ if ascending {
+ return res < 0
+ } else {
+ return res > 0
+ }
}
// Break ties based on name to get a deterministic order.
return a.results[i].Name < a.results[j].Name
@@ -711,15 +724,12 @@
// compare returns a negative number if lval is less than rval, 0 if they are
// equal, and a positive number if lval is greater than rval.
func compare(c *context, lval, rval interface{}) (int, error) {
- ltype := reflect.TypeOf(lval)
- rtype := reflect.TypeOf(rval)
-
- if ltype != rtype {
- return 0, fmt.Errorf("type mismatch; left: %v, right: %v", ltype, rtype)
- }
switch lval := lval.(type) {
case string:
- rval := rval.(string)
+ rval, ok := rval.(string)
+ if !ok {
+ return 0, fmt.Errorf("type mismatch; left: %T, right: %T", lval, rval)
+ }
if lval < rval {
return -1, nil
} else if lval > rval {
@@ -728,11 +738,89 @@
return 0, nil
}
case *big.Rat:
- return lval.Cmp(rval.(*big.Rat)), nil
+ switch rval := rval.(type) {
+ case *big.Rat:
+ return lval.Cmp(rval), nil
+ case *big.Int:
+ return lval.Cmp(new(big.Rat).SetInt(rval)), nil
+ case int, int8, int16, int32, int64:
+ return lval.Cmp(new(big.Rat).SetInt64(toInt64(rval))), nil
+ case uint, uint8, uint16, uint32, uint64:
+ // It is not possible to convert to a big.Rat from an unsigned. Need to
+ // go through big.Int first.
+ return lval.Cmp(new(big.Rat).SetInt(new(big.Int).SetUint64(toUint64(rval)))), nil
+ }
case *big.Int:
- return lval.Cmp(rval.(*big.Int)), nil
+ switch rval := rval.(type) {
+ case *big.Rat:
+ return new(big.Rat).SetInt(lval).Cmp(rval), nil
+ case *big.Int:
+ return lval.Cmp(rval), nil
+ case int, int8, int16, int32, int64:
+ return lval.Cmp(big.NewInt(toInt64(rval))), nil
+ case uint, uint8, uint16, uint32, uint64:
+ return lval.Cmp(new(big.Int).SetUint64(toUint64(rval))), nil
+ }
+ case int, int8, int16, int32, int64:
+ switch rval := rval.(type) {
+ case *big.Rat:
+ return new(big.Rat).SetInt64(toInt64(lval)).Cmp(rval), nil
+ case *big.Int:
+ return new(big.Int).SetInt64(toInt64(lval)).Cmp(rval), nil
+ case int, int8, int16, int32, int64:
+ lint, rint := toInt64(lval), toInt64(rval)
+ if lint < rint {
+ return -1, nil
+ } else if lint > rint {
+ return 1, nil
+ } else {
+ return 0, nil
+ }
+ case uint, uint8, uint16, uint32, uint64:
+ lint, rint := toUint64(lval), toUint64(rval)
+ if lint < rint {
+ return -1, nil
+ } else if lint > rint {
+ return 1, nil
+ } else {
+ return 0, nil
+ }
+ }
+ }
+ return 0, fmt.Errorf("unexpected type %T", lval)
+}
+
+func toInt64(i interface{}) int64 {
+ switch i := i.(type) {
+ case int:
+ return int64(i)
+ case int8:
+ return int64(i)
+ case int16:
+ return int64(i)
+ case int32:
+ return int64(i)
+ case int64:
+ return int64(i)
default:
- return 0, fmt.Errorf("unexpected type %T", lval)
+ panic(fmt.Errorf("unexpected type %T", i))
+ }
+}
+
+func toUint64(i interface{}) uint64 {
+ switch i := i.(type) {
+ case uint:
+ return uint64(i)
+ case uint8:
+ return uint64(i)
+ case uint16:
+ return uint64(i)
+ case uint32:
+ return uint64(i)
+ case uint64:
+ return uint64(i)
+ default:
+ panic(fmt.Errorf("unexpected type %T", i))
}
}
@@ -807,6 +895,8 @@
return &exprInt{e.Int, e.Pos}
case *parse.ExprName:
return &exprName{e.Name, e.Pos}
+ case *parse.ExprUnary:
+ return &exprUnary{convertExpr(e.Operand), e.Op, e.Pos}
// TODO(kash): Support the other types of expressions.
default:
panic(fmt.Errorf("unexpected type %T", e))
@@ -888,3 +978,57 @@
sort.Strings(s)
return strings.Join(s, ", ")
}
+
+// exprUnary is an expr preceded by a '+' or '-'.
+type exprUnary struct {
+ // operand is the expression to be modified by Op.
+ operand expr
+ // op is the operator that modifies operand.
+ op parse.Operator
+ // pos specifies where in the query string this component started.
+ pos parse.Pos
+}
+
+// value implements the expr method.
+func (e *exprUnary) value(c *context, result *store.QueryResult) interface{} {
+ v := e.operand.value(c, result)
+ switch e.op {
+ case parse.OpNeg:
+ switch v := v.(type) {
+ case *big.Int:
+ // Need to create a temporary big.Int since Neg mutates the Int.
+ return new(big.Int).Set(v).Neg(v)
+ case *big.Rat:
+ // Need to create a temporary big.Rat since Neg mutates the Rat.
+ return new(big.Rat).Set(v).Neg(v)
+ case int:
+ return -v
+ case int8:
+ return -v
+ case int16:
+ return -v
+ case int32:
+ return -v
+ case int64:
+ return -v
+ case uint:
+ return -v
+ case uint8:
+ return -v
+ case uint16:
+ return -v
+ case uint32:
+ return -v
+ case uint64:
+ return -v
+ default:
+ sendError(c.errc, fmt.Errorf("cannot negate value of type %T for %s", v, result.Name))
+ return nil
+ }
+ case parse.OpPos:
+ return v
+ default:
+ sendError(c.errc, fmt.Errorf("unknown operator %d at Pos %v", e.op, e.pos))
+ return nil
+ }
+}
diff --git a/services/store/memstore/query/eval_test.go b/services/store/memstore/query/eval_test.go
index 29308e3..19af62b 100644
--- a/services/store/memstore/query/eval_test.go
+++ b/services/store/memstore/query/eval_test.go
@@ -22,6 +22,7 @@
type player struct {
Name string
+ Age int
}
func populate(t *testing.T) *state.State {
@@ -32,10 +33,10 @@
put(t, sn, "/", "")
put(t, sn, "/players", "")
- alfredID := put(t, sn, "/players/alfred", player{"alfred"})
- aliceID := put(t, sn, "/players/alice", player{"alice"})
- bettyID := put(t, sn, "/players/betty", player{"betty"})
- bobID := put(t, sn, "/players/bob", player{"bob"})
+ alfredID := put(t, sn, "/players/alfred", player{"alfred", 17})
+ aliceID := put(t, sn, "/players/alice", player{"alice", 16})
+ bettyID := put(t, sn, "/players/betty", player{"betty", 23})
+ bobID := put(t, sn, "/players/bob", player{"bob", 21})
put(t, sn, "/teams", "")
put(t, sn, "/teams/cardinals", team{"cardinals", "CA"})
@@ -94,6 +95,8 @@
{"", "teams | ?2.3 != 1.0", []string{"teams"}},
{"", "teams | ?2.3 <= 1.0", []string{}},
{"", "teams | ?2.3 >= 1.0", []string{"teams"}},
+ {"", "teams | ?-2.3 >= 1.0", []string{}},
+ {"", "teams | ?2.3 <= -1.0", []string{}},
// Integer constants:
{"", "teams | ?2 > 1", []string{"teams"}},
{"", "teams | ?2 < 1", []string{}},
@@ -101,10 +104,16 @@
{"", "teams | ?2 != 1", []string{"teams"}},
{"", "teams | ?2 <= 1", []string{}},
{"", "teams | ?2 >= 1", []string{"teams"}},
+ // Compare an integer with a rational number:
+ {"", "teams | ?2 > 1.7", []string{"teams"}},
+ {"", "teams | ?2.3 > 1", []string{"teams"}},
+ {"", "teams | ?-2 > 1.7", []string{}},
// Veyron names:
{"", "teams/* | type team | ?Name > 'bar'", []string{"teams/cardinals", "teams/sharks", "teams/bears"}},
{"", "teams/* | type team | ?Name > 'foo'", []string{"teams/sharks"}},
{"", "teams/* | type team | ?Name != 'bears'", []string{"teams/cardinals", "teams/sharks"}},
+ {"", "players/* | type player | ?Age > 20", []string{"players/betty", "players/bob"}},
+ {"", "players/* | type player | ?-Age < -20", []string{"players/betty", "players/bob"}},
// predicateAnd:
{"", "teams | ?true && true", []string{"teams"}},
@@ -122,7 +131,6 @@
{"", "teams | ?!(true || false)", []string{}},
}
for _, test := range tests {
-
it := Eval(st.Snapshot(), rootPublicID, storage.ParsePath(test.suffix), query.Query{test.query})
names := map[string]bool{}
for it.Next() {
@@ -195,6 +203,60 @@
&store.QueryResult{0, "teams/sharks", nil, team{"sharks", "NY"}},
},
},
+ {
+ "'teams/*' | type team | sort(+Location)",
+ []*store.QueryResult{
+ &store.QueryResult{0, "teams/cardinals", nil, team{"cardinals", "CA"}},
+ &store.QueryResult{0, "teams/bears", nil, team{"bears", "CO"}},
+ &store.QueryResult{0, "teams/beavers", nil, team{"beavers", "CO"}},
+ &store.QueryResult{0, "teams/sharks", nil, team{"sharks", "NY"}},
+ },
+ },
+ {
+ "'teams/*' | type team | sort(-Location)",
+ []*store.QueryResult{
+ &store.QueryResult{0, "teams/sharks", nil, team{"sharks", "NY"}},
+ &store.QueryResult{0, "teams/bears", nil, team{"bears", "CO"}},
+ &store.QueryResult{0, "teams/beavers", nil, team{"beavers", "CO"}},
+ &store.QueryResult{0, "teams/cardinals", nil, team{"cardinals", "CA"}},
+ },
+ },
+ {
+ "'teams/*' | type team | sort(-Location, Name)",
+ []*store.QueryResult{
+ &store.QueryResult{0, "teams/sharks", nil, team{"sharks", "NY"}},
+ &store.QueryResult{0, "teams/bears", nil, team{"bears", "CO"}},
+ &store.QueryResult{0, "teams/beavers", nil, team{"beavers", "CO"}},
+ &store.QueryResult{0, "teams/cardinals", nil, team{"cardinals", "CA"}},
+ },
+ },
+ {
+ "'teams/*' | type team | sort(-Location, -Name)",
+ []*store.QueryResult{
+ &store.QueryResult{0, "teams/sharks", nil, team{"sharks", "NY"}},
+ &store.QueryResult{0, "teams/beavers", nil, team{"beavers", "CO"}},
+ &store.QueryResult{0, "teams/bears", nil, team{"bears", "CO"}},
+ &store.QueryResult{0, "teams/cardinals", nil, team{"cardinals", "CA"}},
+ },
+ },
+ {
+ "'players/*' | type player | sort(Age)",
+ []*store.QueryResult{
+ &store.QueryResult{0, "players/alice", nil, player{"alice", 16}},
+ &store.QueryResult{0, "players/alfred", nil, player{"alfred", 17}},
+ &store.QueryResult{0, "players/bob", nil, player{"bob", 21}},
+ &store.QueryResult{0, "players/betty", nil, player{"betty", 23}},
+ },
+ },
+ {
+ "'players/*' | type player | sort(-Age)",
+ []*store.QueryResult{
+ &store.QueryResult{0, "players/betty", nil, player{"betty", 23}},
+ &store.QueryResult{0, "players/bob", nil, player{"bob", 21}},
+ &store.QueryResult{0, "players/alfred", nil, player{"alfred", 17}},
+ &store.QueryResult{0, "players/alice", nil, player{"alice", 16}},
+ },
+ },
}
for _, test := range tests {
it := Eval(st.Snapshot(), rootPublicID, storage.ParsePath(""), query.Query{test.query})
@@ -206,7 +268,7 @@
break
}
if got, want := result, test.expectedResults[i]; !reflect.DeepEqual(got, want) {
- t.Errorf("query: %s;\nGOT %s\nWANT %s", test.query, got, want)
+ t.Errorf("query: %s;\nGOT %v\nWANT %v", test.query, got, want)
}
i++
}
@@ -324,6 +386,7 @@
// use a type filter.
{"teams/* | ?Name > 'foo'", "could not look up name 'Name' relative to 'teams': not found"},
{"'teams/cardinals' | {Name as myname, Location as myloc} | ? Name == 'foo'", "name 'Name' was not selected from 'teams/cardinals', found: [myloc, myname]"},
+ {"teams/* | type team | sort(Name) | ?-Name > 'foo'", "cannot negate value of type string for teams/bears"},
// TODO(kash): Selection with conflicting names.
// TODO(kash): Trying to sort an aggregate. "... | avg | sort()"
diff --git a/services/store/memstore/util_test.go b/services/store/memstore/util_test.go
index 0917a4a..9a344a8 100644
--- a/services/store/memstore/util_test.go
+++ b/services/store/memstore/util_test.go
@@ -2,7 +2,6 @@
import (
"io"
- "net"
"runtime"
"testing"
"time"
@@ -11,6 +10,7 @@
"veyron/services/store/service"
"veyron2/ipc"
+ "veyron2/naming"
"veyron2/security"
"veyron2/storage"
)
@@ -60,11 +60,11 @@
return nil
}
-func (*cancellableContext) LocalAddr() net.Addr {
+func (*cancellableContext) LocalEndpoint() naming.Endpoint {
return nil
}
-func (*cancellableContext) RemoteAddr() net.Addr {
+func (*cancellableContext) RemoteEndpoint() naming.Endpoint {
return nil
}
diff --git a/services/store/memstore/watch/testing/util.go b/services/store/memstore/watch/testing/util.go
index 02a7365..941a2a6 100644
--- a/services/store/memstore/watch/testing/util.go
+++ b/services/store/memstore/watch/testing/util.go
@@ -2,11 +2,11 @@
import (
"errors"
- "net"
"sync"
"time"
"veyron2/ipc"
+ "veyron2/naming"
"veyron2/security"
"veyron2/services/watch"
)
@@ -65,11 +65,11 @@
return nil
}
-func (*CancellableContext) LocalAddr() net.Addr {
+func (*CancellableContext) LocalEndpoint() naming.Endpoint {
return nil
}
-func (*CancellableContext) RemoteAddr() net.Addr {
+func (*CancellableContext) RemoteEndpoint() naming.Endpoint {
return nil
}
diff --git a/services/store/memstore/watch/watcher.go b/services/store/memstore/watch/watcher.go
index 1ef8692..225e6f4 100644
--- a/services/store/memstore/watch/watcher.go
+++ b/services/store/memstore/watch/watcher.go
@@ -106,13 +106,12 @@
return err
}
- // Retrieve the initial timestamp. Changes that occured at or before the
- // initial timestamp will not be sent.
resumeMarker := req.ResumeMarker
- initialTimestamp, err := resumeMarkerToTimestamp(resumeMarker)
+ filter, err := newChangeFilter(resumeMarker)
if err != nil {
return err
}
+
if isNowResumeMarker(resumeMarker) {
sendChanges(stream, []watch.Change{initialStateSkippedChange})
}
@@ -127,9 +126,13 @@
if err != nil {
return err
}
- err = processChanges(stream, changes, initialTimestamp, st.Timestamp())
- if err != nil {
+ timestamp := st.Timestamp()
+ if send, err := filter.shouldProcessChanges(timestamp); err != nil {
return err
+ } else if send {
+ if err := processChanges(stream, changes, timestamp); err != nil {
+ return err
+ }
}
for {
@@ -142,9 +145,13 @@
if err != nil {
return err
}
- err = processChanges(stream, changes, initialTimestamp, mu.Timestamp)
- if err != nil {
+ timestamp := mu.Timestamp
+ if send, err := filter.shouldProcessChanges(timestamp); err != nil {
return err
+ } else if send {
+ if err := processChanges(stream, changes, timestamp); err != nil {
+ return err
+ }
}
}
}
@@ -172,10 +179,78 @@
return newSyncProcessor(client)
}
-func processChanges(stream watch.WatcherServiceWatchStream, changes []watch.Change, initialTimestamp, timestamp uint64) error {
- if timestamp <= initialTimestamp {
- return nil
+type changeFilter interface {
+ // shouldProcessChanges determines whether to process changes with the given
+ // timestamp. Changes should appear in the sequence of the store log, and
+ // timestamps should be monotonically increasing.
+ shouldProcessChanges(timestamp uint64) (bool, error)
+}
+
+type baseFilter struct {
+ // initialTimestamp is the minimum timestamp of the first change sent.
+ initialTimestamp uint64
+ // crossedInitialTimestamp is true if a change with timestamp >=
+ // initialTimestamp has already been sent.
+ crossedInitialTimestamp bool
+}
+
+// onOrAfterFilter accepts any change with timestamp >= initialTimestamp.
+type onOrAfterFilter struct {
+ baseFilter
+}
+
+// onAndAfterFilter accepts any change with timestamp >= initialTimestamp, but
+// requires the first change to have timestamp = initialTimestamp.
+type onAndAfterFilter struct {
+ baseFilter
+}
+
+// newChangeFilter creates a changeFilter that processes changes only
+// at or after the requested resumeMarker.
+func newChangeFilter(resumeMarker []byte) (changeFilter, error) {
+ if len(resumeMarker) == 0 {
+ return &onOrAfterFilter{baseFilter{0, false}}, nil
}
+ if isNowResumeMarker(resumeMarker) {
+ // TODO(tilaks): Get the current resume marker from the log.g
+ return &onOrAfterFilter{baseFilter{uint64(time.Now().UnixNano()), false}}, nil
+ }
+ if len(resumeMarker) != 8 {
+ return nil, ErrUnknownResumeMarker
+ }
+ return &onAndAfterFilter{baseFilter{binary.BigEndian.Uint64(resumeMarker), false}}, nil
+}
+
+func (f *onOrAfterFilter) shouldProcessChanges(timestamp uint64) (bool, error) {
+ // Bypass checks if a change with timestamp >= initialTimestamp has already
+ // been sent.
+ if !f.crossedInitialTimestamp {
+ if timestamp < f.initialTimestamp {
+ return false, nil
+ }
+ }
+ f.crossedInitialTimestamp = true
+ return true, nil
+}
+
+func (f *onAndAfterFilter) shouldProcessChanges(timestamp uint64) (bool, error) {
+ // Bypass checks if a change with timestamp >= initialTimestamp has already
+ // been sent.
+ if !f.crossedInitialTimestamp {
+ if timestamp < f.initialTimestamp {
+ return false, nil
+ }
+ if timestamp > f.initialTimestamp {
+ return false, ErrUnknownResumeMarker
+ }
+ // TODO(tilaks): if the most recent timestamp in the log is less than
+ // initialTimestamp, return ErrUnknownResumeMarker.
+ }
+ f.crossedInitialTimestamp = true
+ return true, nil
+}
+
+func processChanges(stream watch.WatcherServiceWatchStream, changes []watch.Change, timestamp uint64) error {
addContinued(changes)
addResumeMarkers(changes, timestampToResumeMarker(timestamp))
return sendChanges(stream, changes)
@@ -209,20 +284,6 @@
return bytes.Equal(resumeMarker, nowResumeMarker)
}
-func resumeMarkerToTimestamp(resumeMarker []byte) (uint64, error) {
- if len(resumeMarker) == 0 {
- return 0, nil
- }
- if isNowResumeMarker(resumeMarker) {
- // TODO(tilaks): Get the current resume marker from the log.
- return uint64(time.Now().UnixNano()), nil
- }
- if len(resumeMarker) != 8 {
- return 0, ErrUnknownResumeMarker
- }
- return binary.BigEndian.Uint64(resumeMarker), nil
-}
-
func timestampToResumeMarker(timestamp uint64) []byte {
buf := make([]byte, 8)
binary.BigEndian.PutUint64(buf, timestamp)
diff --git a/services/store/memstore/watch/watcher_test.go b/services/store/memstore/watch/watcher_test.go
index 1ec7c10..cb60b0e 100644
--- a/services/store/memstore/watch/watcher_test.go
+++ b/services/store/memstore/watch/watcher_test.go
@@ -157,7 +157,7 @@
id1 := put(t, st, tr, "/", "val1")
commit(t, tr)
- post1 := st.Snapshot().Find(id1).Version
+ post11 := st.Snapshot().Find(id1).Version
if err := st.Close(); err != nil {
t.Fatalf("Close() failed: %v", err)
@@ -177,9 +177,9 @@
id2 := put(t, st, tr, "/a", "val2")
commit(t, tr)
- pre1 := post1
- post1 = st.Snapshot().Find(id1).Version
- post2 := st.Snapshot().Find(id2).Version
+ pre21 := post11
+ post21 := st.Snapshot().Find(id1).Version
+ post22 := st.Snapshot().Find(id2).Version
// Start a watch request.
req := watch.Request{}
@@ -198,11 +198,22 @@
ws.Cancel()
ws.Finish()
- // Start a watch request after the initial state.
+ // Start a watch request at the initial state.
req = watch.Request{ResumeMarker: resumeMarker1}
ws = watchtesting.Watch(rootPublicID, w.Watch, req)
- // Check that watch detects the changes the transaction.
+ // Check that watch detects the changes in the state and the transaction.
+ cb, err = ws.Recv()
+ if err != nil {
+ t.Error("Recv() failed: %v", err)
+ }
+ changes = cb.Changes
+ change = changes[0]
+ if change.Continued {
+ t.Error("Expected change to be the last in this transaction")
+ }
+ expectExists(t, changes, id1, storage.NoVersion, post11, true, "val1", empty)
+
cb, err = ws.Recv()
if err != nil {
t.Error("Recv() failed: %v", err)
@@ -216,8 +227,8 @@
if change.Continued {
t.Error("Expected change to be the last in this transaction")
}
- expectExists(t, changes, id1, pre1, post1, true, "val1", dir("a", id2))
- expectExists(t, changes, id2, storage.NoVersion, post2, false, "val2", empty)
+ expectExists(t, changes, id1, pre21, post21, true, "val1", dir("a", id2))
+ expectExists(t, changes, id2, storage.NoVersion, post22, false, "val2", empty)
}
func TestTransactionResumeMarker(t *testing.T) {
@@ -234,16 +245,16 @@
id1 := put(t, st, tr, "/", "val1")
commit(t, tr)
- post1 := st.Snapshot().Find(id1).Version
+ post11 := st.Snapshot().Find(id1).Version
// Put /a
tr = memstore.NewTransaction()
id2 := put(t, st, tr, "/a", "val2")
commit(t, tr)
- pre1 := post1
- post1 = st.Snapshot().Find(id1).Version
- post2 := st.Snapshot().Find(id2).Version
+ pre21 := post11
+ post21 := st.Snapshot().Find(id1).Version
+ post22 := st.Snapshot().Find(id2).Version
// Start a watch request.
req := watch.Request{}
@@ -262,10 +273,47 @@
ws.Cancel()
ws.Finish()
- // Start a watch request after the first transaction.
+ // Start a watch request at the first transaction.
req = watch.Request{ResumeMarker: resumeMarker1}
ws = watchtesting.Watch(rootPublicID, w.Watch, req)
+ // Check that watch detects the changes in the first and second transaction.
+ cb, err = ws.Recv()
+ if err != nil {
+ t.Error("Recv() failed: %v", err)
+ }
+ changes = cb.Changes
+ change = changes[0]
+ if change.Continued {
+ t.Error("Expected change to be the last in this transaction")
+ }
+ expectExists(t, changes, id1, storage.NoVersion, post11, true, "val1", empty)
+
+ cb, err = ws.Recv()
+ if err != nil {
+ t.Error("Recv() failed: %v", err)
+ }
+ changes = cb.Changes
+ change = changes[0]
+ if !change.Continued {
+ t.Error("Expected change to continue the transaction")
+ }
+ change = changes[1]
+ if change.Continued {
+ t.Error("Expected change to be the last in this transaction")
+ }
+ resumeMarker2 := change.ResumeMarker
+ expectExists(t, changes, id1, pre21, post21, true, "val1", dir("a", id2))
+ expectExists(t, changes, id2, storage.NoVersion, post22, false, "val2", empty)
+
+ // Cancel the watch request.
+ ws.Cancel()
+ ws.Finish()
+
+ // Start a watch request at the second transaction.
+ req = watch.Request{ResumeMarker: resumeMarker2}
+ ws = watchtesting.Watch(rootPublicID, w.Watch, req)
+
// Check that watch detects the changes in the second transaction.
cb, err = ws.Recv()
if err != nil {
@@ -280,8 +328,8 @@
if change.Continued {
t.Error("Expected change to be the last in this transaction")
}
- expectExists(t, changes, id1, pre1, post1, true, "val1", dir("a", id2))
- expectExists(t, changes, id2, storage.NoVersion, post2, false, "val2", empty)
+ expectExists(t, changes, id1, pre21, post21, true, "val1", dir("a", id2))
+ expectExists(t, changes, id2, storage.NoVersion, post22, false, "val2", empty)
}
func TestNowResumeMarker(t *testing.T) {
@@ -295,10 +343,15 @@
// Put /
tr := memstore.NewTransaction()
- id1 := put(t, st, tr, "/", "val1")
+ put(t, st, tr, "/", "val1")
commit(t, tr)
- post1 := st.Snapshot().Find(id1).Version
+ // Put /a
+ tr = memstore.NewTransaction()
+ id2 := put(t, st, tr, "/a", "val2")
+ commit(t, tr)
+
+ post22 := st.Snapshot().Find(id2).Version
// Start a watch request with the "now" resume marker.
req := watch.Request{ResumeMarker: nowResumeMarker}
@@ -307,6 +360,15 @@
// Give watch some time to pick "now".
time.Sleep(time.Second)
+ // Put /a/b
+ tr = memstore.NewTransaction()
+ id3 := put(t, st, tr, "/a/b", "val3")
+ commit(t, tr)
+
+ pre32 := post22
+ post32 := st.Snapshot().Find(id2).Version
+ post33 := st.Snapshot().Find(id3).Version
+
// Check that watch announces that the initial state was skipped.
cb, err := ws.Recv()
if err != nil {
@@ -316,16 +378,7 @@
change := changes[0]
expectInitialStateSkipped(t, change)
- // Put /a
- tr = memstore.NewTransaction()
- id2 := put(t, st, tr, "/a", "val2")
- commit(t, tr)
-
- pre1 := post1
- post1 = st.Snapshot().Find(id1).Version
- post2 := st.Snapshot().Find(id2).Version
-
- // Check that watch detects the changes in the second transaction.
+ // Check that watch detects the changes in the third transaction.
cb, err = ws.Recv()
if err != nil {
t.Error("Recv() failed: %v", err)
@@ -339,25 +392,40 @@
if change.Continued {
t.Error("Expected change to be the last in this transaction")
}
- expectExists(t, changes, id1, pre1, post1, true, "val1", dir("a", id2))
- expectExists(t, changes, id2, storage.NoVersion, post2, false, "val2", empty)
+ expectExists(t, changes, id2, pre32, post32, false, "val2", dir("b", id3))
+ expectExists(t, changes, id3, storage.NoVersion, post33, false, "val3", empty)
}
func TestUnknownResumeMarkers(t *testing.T) {
// Create a new store.
- dbName, _, cleanup := createStore(t)
+ dbName, st, cleanup := createStore(t)
defer cleanup()
// Create a new watcher.
w, cleanup := createWatcher(t, dbName)
defer cleanup()
- // Start a watch request with a resume marker that is too long.
- resumeMarker := make([]byte, 9)
+ // Put /
+ tr := memstore.NewTransaction()
+ put(t, st, tr, "/", "val1")
+ commit(t, tr)
+
+ // Start a watch request with a resume marker that's too early.
+ resumeMarker := timestampToResumeMarker(1)
req := watch.Request{ResumeMarker: resumeMarker}
ws := watchtesting.Watch(rootPublicID, w.Watch, req)
- // The resume marker should be too long.
+ // The resume marker should be unknown.
+ if err := ws.Finish(); err != ErrUnknownResumeMarker {
+ t.Errorf("Unexpected error: %v", err)
+ }
+
+ // Start a watch request with a resume marker that's too late.
+ resumeMarker = timestampToResumeMarker(2 ^ 63 - 1)
+ req = watch.Request{ResumeMarker: resumeMarker}
+ ws = watchtesting.Watch(rootPublicID, w.Watch, req)
+
+ // The resume marker should be unknown.
if err := ws.Finish(); err != ErrUnknownResumeMarker {
t.Errorf("Unexpected error: %v", err)
}
diff --git a/services/store/server/server_test.go b/services/store/server/server_test.go
index bfdabd4..b434767 100644
--- a/services/store/server/server_test.go
+++ b/services/store/server/server_test.go
@@ -4,7 +4,6 @@
"fmt"
"io/ioutil"
"log"
- "net"
"os"
"reflect"
"testing"
@@ -14,6 +13,7 @@
"veyron/services/store/raw"
"veyron2/ipc"
+ "veyron2/naming"
"veyron2/security"
"veyron2/services/store"
"veyron2/services/watch"
@@ -72,11 +72,11 @@
return nil
}
-func (*testContext) LocalAddr() net.Addr {
+func (*testContext) LocalEndpoint() naming.Endpoint {
return nil
}
-func (*testContext) RemoteAddr() net.Addr {
+func (*testContext) RemoteEndpoint() naming.Endpoint {
return nil
}
diff --git a/services/store/testutil/store.go b/services/store/testutil/store.go
index 4b8df30..1350312 100644
--- a/services/store/testutil/store.go
+++ b/services/store/testutil/store.go
@@ -54,6 +54,7 @@
}
name = naming.JoinAddressName(ep.String(), name)
+ name = naming.MakeTerminal(name)
// Create a closure that cleans things up.
cleanup := func() {
diff --git a/services/store/typeregistryhack/init.go b/services/store/typeregistryhack/init.go
index 31a37f1..2b5c0ac 100644
--- a/services/store/typeregistryhack/init.go
+++ b/services/store/typeregistryhack/init.go
@@ -14,6 +14,8 @@
_ "veyron/examples/storage/mdb/schema"
// Register todos types.
_ "veyron/examples/todos/schema"
+ // Register bank types.
+ _ "veyron/examples/bank/schema"
"veyron2/vom"
)
diff --git a/services/wspr/wsprd/lib/wspr.go b/services/wspr/wsprd/lib/wspr.go
index b9409f7..e01021a 100644
--- a/services/wspr/wsprd/lib/wspr.go
+++ b/services/wspr/wsprd/lib/wspr.go
@@ -88,7 +88,7 @@
websocketVeyronRequest websocketMessageType = 0
// Publishing this websocket under a veyron name
- websocketPublish = 1
+ websocketPublishServer = 1
// A response from a service in javascript to a request
// from the proxy.
@@ -102,6 +102,9 @@
// A request to get signature of a remote server
websocketSignatureRequest = 5
+
+ // A request to stop a server
+ websocketStopServer = 6
)
type websocketMessage struct {
@@ -368,7 +371,7 @@
id := wsp.lastGeneratedId
wsp.lastGeneratedId += 2
wsp.flowMap[id] = server
- wsp.outstandingStreams[id] = outstandingStream{stream: stream}
+ wsp.outstandingStreams[id] = outstandingStream{stream, vom_wiretype.Type{ID: 1}}
return &flow{id: id, writer: wsp.writerCreator(id)}
}
@@ -610,8 +613,10 @@
wsp.sendOnStream(msg.Id, msg.Data, ww)
case websocketStreamClose:
wsp.closeStream(msg.Id)
- case websocketPublish:
+ case websocketPublishServer:
go wsp.handlePublishRequest(msg.Data, ww)
+ case websocketStopServer:
+ go wsp.handleStopRequest(msg.Data, ww)
case websocketServerResponse:
go wsp.handleServerResponse(msg.Id, msg.Data)
case websocketSignatureRequest:
@@ -637,6 +642,19 @@
return server, nil
}
+func (wsp *websocketPipe) removeServer(serverId uint64) {
+ wsp.Lock()
+ server := wsp.servers[serverId]
+ if server == nil {
+ wsp.Unlock()
+ return
+ }
+ delete(wsp.servers, serverId)
+ wsp.Unlock()
+
+ server.Stop()
+}
+
func (wsp *websocketPipe) publish(publishRequest publishRequest, w clientWriter) {
// Create a server for the websocket pipe, if it does not exist already
server, err := wsp.maybeCreateServer(publishRequest.ServerId)
@@ -684,6 +702,27 @@
wsp.publish(publishRequest, w)
}
+// handleStopRequest takes a request to stop a server.
+func (wsp *websocketPipe) handleStopRequest(data string, w *websocketWriter) {
+
+ var serverId uint64
+ decoder := json.NewDecoder(bytes.NewBufferString(data))
+ if err := decoder.Decode(&serverId); err != nil {
+ w.sendError(verror.Internalf("can't unmarshal JSONMessage: %v", err))
+ return
+ }
+
+ wsp.removeServer(serverId)
+
+ // Send true to indicate stop has finished
+ result := response{Type: responseFinal, Message: true}
+ if err := vom.ObjToJSON(w, vom.ValueOf(result)); err != nil {
+ w.sendError(verror.Internalf("error marshalling results: %v", err))
+ return
+ }
+ w.FinishMessage()
+}
+
// handleServerResponse handles the completion of outstanding calls to JavaScript services
// by filling the corresponding channel with the result from JavaScript.
func (wsp *websocketPipe) handleServerResponse(id int64, data string) {
@@ -827,7 +866,7 @@
pipe.start(w, r)
})
ctx.logger.VI(1).Infof("Listening on port %d.", ctx.port)
- httpErr := http.ListenAndServe(fmt.Sprintf(":%d", ctx.port), nil)
+ httpErr := http.ListenAndServe(fmt.Sprintf("127.0.0.1:%d", ctx.port), nil)
if httpErr != nil {
log.Fatalf("Failed to HTTP serve: %s", httpErr)
}
diff --git a/services/wspr/wsprd/lib/wspr_test.go b/services/wspr/wsprd/lib/wspr_test.go
index 42ee621..4ea681a 100644
--- a/services/wspr/wsprd/lib/wspr_test.go
+++ b/services/wspr/wsprd/lib/wspr_test.go
@@ -373,35 +373,39 @@
})
}
-func TestJavascriptPublish(t *testing.T) {
+type runningTest struct {
+ wspr *WSPR
+ wsp *websocketPipe
+ writer *testWriter
+ mounttableServer ipc.Server
+ proxyServer *proxy.Proxy
+}
+
+func publishServer() (*runningTest, error) {
mounttableServer, endpoint, err := startMountTableServer()
if err != nil {
- t.Errorf("unable to start mounttable: %v", err)
- return
+ return nil, fmt.Errorf("unable to start mounttable: %v", err)
}
- defer mounttableServer.Stop()
-
proxyServer, err := startProxy()
if err != nil {
- t.Errorf("unable to start proxy: %v", err)
- return
+ return nil, fmt.Errorf("unable to start proxy: %v", err)
}
- defer proxyServer.Shutdown()
-
proxyEndpoint := proxyServer.Endpoint().String()
- wspr := NewWSPR(0, "/"+proxyEndpoint, veyron2.MountTableRoots{"/" + endpoint.String() + "/mt"})
+ wspr := NewWSPR(0, "/"+proxyEndpoint, veyron2.NamespaceRoots{"/" + endpoint.String() + "/mt"})
wspr.setup()
wsp := websocketPipe{ctx: wspr}
- wsp.setup()
- defer wsp.cleanup()
writer := testWriter{
logger: wspr.logger,
}
+ wsp.writerCreator = func(int64) clientWriter {
+ return &writer
+ }
+ wsp.setup()
wsp.publish(publishRequest{
Name: "adder",
Services: map[string]JSONServiceSignature{
@@ -409,11 +413,26 @@
},
}, &writer)
- if len(writer.stream) != 1 {
- t.Errorf("expected only on response, got %d", len(writer.stream))
+ return &runningTest{
+ wspr, &wsp, &writer, mounttableServer, proxyServer,
+ }, nil
+}
+
+func TestJavascriptPublishServer(t *testing.T) {
+ rt, err := publishServer()
+ defer rt.mounttableServer.Stop()
+ defer rt.proxyServer.Shutdown()
+ defer rt.wsp.cleanup()
+
+ if err != nil {
+ t.Errorf("could not publish server %v", err)
}
- resp := writer.stream[0]
+ if len(rt.writer.stream) != 1 {
+ t.Errorf("expected only on response, got %d", len(rt.writer.stream))
+ }
+
+ resp := rt.writer.stream[0]
if resp.Type != responseFinal {
t.Errorf("unknown stream message Got: %v, expected: publish response", resp)
@@ -424,11 +443,39 @@
if _, err := r.NewEndpoint(msg); err == nil {
return
}
-
}
t.Errorf("invalid endpdoint returned from publish: %v", resp.Message)
}
+func TestJavascriptStopServer(t *testing.T) {
+ rt, err := publishServer()
+ defer rt.mounttableServer.Stop()
+ defer rt.proxyServer.Shutdown()
+ defer rt.wsp.cleanup()
+
+ if err != nil {
+ t.Errorf("could not publish server %v", err)
+ return
+ }
+
+ // ensure there is only one server and then stop the server
+ if len(rt.wsp.servers) != 1 {
+ t.Errorf("expected only one server but got: %d", len(rt.wsp.servers))
+ return
+ }
+ for serverId := range rt.wsp.servers {
+ rt.wsp.removeServer(serverId)
+ }
+
+ // ensure there is no more servers now
+ if len(rt.wsp.servers) != 0 {
+ t.Errorf("expected no server after stopping the only one but got: %d", len(rt.wsp.servers))
+ return
+ }
+
+ return
+}
+
type jsServerTestCase struct {
method string
inArgs []interface{}
@@ -458,49 +505,20 @@
}
func runJsServerTestCase(t *testing.T, test jsServerTestCase) {
- mounttableServer, endpoint, err := startMountTableServer()
+ rt, err := publishServer()
+ defer rt.mounttableServer.Stop()
+ defer rt.proxyServer.Shutdown()
+ defer rt.wsp.cleanup()
if err != nil {
- t.Errorf("unable to start mounttable: %v", err)
- return
+ t.Errorf("could not publish server %v", err)
}
- defer mounttableServer.Stop()
-
- proxyServer, err := startProxy()
-
- if err != nil {
- t.Errorf("unable to start proxy: %v", err)
- return
+ if len(rt.writer.stream) != 1 {
+ t.Errorf("expected only on response, got %d", len(rt.writer.stream))
}
- defer proxyServer.Shutdown()
-
- proxyEndpoint := proxyServer.Endpoint().String()
-
- wspr := NewWSPR(0, "/"+proxyEndpoint, veyron2.MountTableRoots{"/" + endpoint.String() + "/mt//"})
- wspr.setup()
- wsp := websocketPipe{ctx: wspr}
- writer := testWriter{
- logger: wspr.logger,
- }
- wsp.writerCreator = func(int64) clientWriter {
- return &writer
- }
- wsp.setup()
- defer wsp.cleanup()
- wsp.publish(publishRequest{
- Name: "adder",
- Services: map[string]JSONServiceSignature{
- "adder": adderServiceSignature,
- },
- }, &writer)
-
- if len(writer.stream) != 1 {
- t.Errorf("expected only on response, got %d", len(writer.stream))
- }
-
- resp := writer.stream[0]
+ resp := rt.writer.stream[0]
if resp.Type != responseFinal {
t.Errorf("unknown stream message Got: %v, expected: publish response", resp)
@@ -516,16 +534,16 @@
t.Errorf("invalid endpdoint returned from publish: %v", resp.Message)
}
- writer.stream = nil
+ rt.writer.stream = nil
// Create a client using wspr's runtime so it points to the right mounttable.
- client, err := wspr.rt.NewClient()
+ client, err := rt.wspr.rt.NewClient()
if err != nil {
t.Errorf("unable to create client: %v", err)
}
- call, err := client.StartCall(wspr.rt.NewContext(), "/"+msg+"//adder", test.method, test.inArgs)
+ call, err := client.StartCall(rt.wspr.rt.NewContext(), "/"+msg+"//adder", test.method, test.inArgs)
if err != nil {
t.Errorf("failed to start call: %v", err)
}
@@ -547,7 +565,7 @@
}
// Wait until the rpc has started.
- if err := writer.waitForMessage(len(expectedWebsocketMessage)); err != nil {
+ if err := rt.writer.waitForMessage(len(expectedWebsocketMessage)); err != nil {
t.Errorf("didn't recieve expected message: %v", err)
}
for _, msg := range test.clientStream {
@@ -558,14 +576,14 @@
}
// Wait until all the streaming messages have been acknowledged.
- if err := writer.waitForMessage(len(expectedWebsocketMessage)); err != nil {
+ if err := rt.writer.waitForMessage(len(expectedWebsocketMessage)); err != nil {
t.Errorf("didn't recieve expected message: %v", err)
}
expectedWebsocketMessage = append(expectedWebsocketMessage, response{Type: responseStreamClose})
expectedStream := test.serverStream
- go sendServerStream(t, &wsp, &test, &writer)
+ go sendServerStream(t, rt.wsp, &test, rt.writer)
for {
var data interface{}
if err := call.Recv(&data); err != nil {
@@ -599,11 +617,11 @@
}
// Wait until the close streaming messages have been acknowledged.
- if err := writer.waitForMessage(len(expectedWebsocketMessage)); err != nil {
+ if err := rt.writer.waitForMessage(len(expectedWebsocketMessage)); err != nil {
t.Errorf("didn't recieve expected message: %v", err)
}
- checkResponses(&writer, expectedWebsocketMessage, nil, t)
+ checkResponses(rt.writer, expectedWebsocketMessage, nil, t)
}
func TestSimpleJSServer(t *testing.T) {
diff --git a/tools/application/impl/impl_test.go b/tools/application/impl/impl_test.go
index 0029325..8829f13 100644
--- a/tools/application/impl/impl_test.go
+++ b/tools/application/impl/impl_test.go
@@ -107,7 +107,7 @@
cmd := impl.Root()
var stdout, stderr bytes.Buffer
cmd.Init(nil, &stdout, &stderr)
- appName := naming.JoinAddressName(endpoint.String(), "myapp/1")
+ appName := naming.JoinAddressName(endpoint.String(), "//myapp/1")
profile := "myprofile"
// Test the 'Match' command.
diff --git a/tools/mounttable/impl/impl.go b/tools/mounttable/impl/impl.go
index d12d6e3..0446a66 100644
--- a/tools/mounttable/impl/impl.go
+++ b/tools/mounttable/impl/impl.go
@@ -13,7 +13,7 @@
func bindMT(name string) (mounttable.MountTable, error) {
ctx := rt.R().NewContext()
- mts, err := rt.R().MountTable().ResolveToMountTable(ctx, name)
+ mts, err := rt.R().Namespace().ResolveToMountTable(ctx, name)
if err != nil {
return nil, err
}
diff --git a/tools/naming/simulator/clock.scr b/tools/naming/simulator/clock.scr
new file mode 100644
index 0000000..2df07af
--- /dev/null
+++ b/tools/naming/simulator/clock.scr
@@ -0,0 +1,66 @@
+#
+# Simple example to show how names work and are used both without
+# and with a mount table.
+#
+
+# A 'stand-alone' server, with an internal namespace of 'mt/...'
+clockServer "" mt clock
+set STAND_ALONE_CLOCK_NAME=$NAME
+
+set N=$STAND_ALONE_CLOCK_NAME
+print "Stand alone clock server at" $N
+time $N "Using $N"
+set N=/$ADDR//mt
+time $N "Using $N"
+
+# Run a root MountTable.
+rootMT mt
+set ROOT_ADDR=$MT_ADDR ROOT_NAME=$MT_NAME
+print ""
+print "Root MountTable at $ROOT_NAME"
+
+clockServer $MT_NAME clocks home_clock
+set CLOCK_NAME=/$ADDR//clocks
+print "Running Clock Server at $CLOCK_NAME"
+
+# Still bypassing the MountTable
+time $CLOCK_NAME bar
+
+# Now, let's use the MountTable
+setLocalRoots $ROOT_NAME
+
+set N=home_clock
+resolve $N
+print $N -> $R0
+
+set N=home_clock/clocks
+resolve $N
+print $N -> $R0
+
+set N=/$ROOT_ADDR/home_clock/clocks
+resolve $N
+print $N -> $R0
+
+set N=home_clock/clocks
+time $N "Using $N"
+set N=$ROOT_NAME/home_clock/clocks
+time $N "Using $N"
+
+# ls * returns home_clock
+ls *
+# ls ... returns "" and home_clock - i.e two items. Is this a bug?
+ls ...
+
+# These all behave as above
+lsmt $ROOT_NAME *
+lsmt $ROOT_NAME ...
+
+# Conclusion: some of this behaviour seems a little awkward. In particular:
+#
+# The client neeeds to use a different form of the name depending on whether
+# a MountTable is used or not. If a MountTable is not used, then the internal
+# 'suffix' (/mt) in the examples above must be used. If a MountTable is used
+# then the internal suffix must not be included in the name.
+#
+# ls ... seems to always return an extra, zero length, string as entry
+#
diff --git a/tools/naming/simulator/driver.go b/tools/naming/simulator/driver.go
index 4a48737..4206289 100644
--- a/tools/naming/simulator/driver.go
+++ b/tools/naming/simulator/driver.go
@@ -78,6 +78,9 @@
for scanner.Scan() {
line := scanner.Text()
if !strings.HasPrefix(line, "#") && len(line) > 0 {
+ if line == "eof" {
+ break
+ }
if err := process(line, lineno); err != nil {
if debug {
fmt.Printf("%d> %s: %v\n", lineno, line, err)
@@ -122,17 +125,17 @@
if factory == nil {
return fmt.Errorf("unrecognised command %q", name)
}
-
if vars, output, _, err := factory().Run(sub); err != nil {
return err
} else {
if debug || interactive {
+ fmt.Printf("%d> %s\n", lineno, line)
+ }
+ if len(output) > 0 {
if !interactive {
- fmt.Printf("%d> %s\n", lineno, line)
+ fmt.Printf("%d> ", lineno)
}
- if len(output) > 0 {
- fmt.Printf("%s\n", strings.Join(output, " "))
- }
+ fmt.Printf("%s\n", strings.Join(output, " "))
}
if debug && len(vars) > 0 {
for k, v := range vars {
diff --git a/tools/naming/simulator/mt.scr b/tools/naming/simulator/mt.scr
new file mode 100644
index 0000000..4ebbb1a
--- /dev/null
+++ b/tools/naming/simulator/mt.scr
@@ -0,0 +1,90 @@
+#
+# Example showing multiple mount tables, servers and globing
+#
+
+rootMT ""
+set ROOT_MT_NAME=$MT_NAME ROOT_MT_ADDR=$MT_ADDR
+set ROOT=$ROOT_MT_NAME
+
+nodeMT $ROOT "mt" "usa"
+set USA_MT=$MT_NAME
+
+nodeMT $USA_MT_NAME "mt" "palo alto"
+set PA_MT=$MT_NAME
+
+
+print "--------- Resolve ROOT, ROOT/usa, ROOT/usa/mt/palo alto"
+print "--------- Each should return a different address"
+resolve $ROOT
+resolve $ROOT/usa
+resolve "$ROOT/usa/mt/palo alto"
+
+print "--------- ResolveMT ROOT, ROOT/usa, ROOT/usa/mt - should return the ROOT MT"
+resolveMT $ROOT
+resolveMT $ROOT/usa
+resolveMT $ROOT/usa/mt
+
+print "--------- ResolveMT ROOT/usa/mt/palo alto, palo alto/mt should return the USA MT"
+resolveMT "$ROOT/usa/mt/palo alto"
+resolveMT "$ROOT/usa/mt/palo alto/mt"
+
+print "--------- ResolveMT ROOT/usa/mt/palo alto/mt/bar should return the palo alto MT"
+resolveMT "$ROOT/usa/mt/palo alto/mt/bar"
+
+# should return a complete hiearchy....
+setLocalRoots $ROOT
+print "--------- setLocalRoots to global root"
+print "--------- ls ..."
+ls ...
+print "--------- ls *"
+ls *
+
+print "--------- setLocalRoots to usa"
+setLocalRoots $USA_MT
+ls ...
+
+print "--------- setLocalRoots to palo alto"
+setLocalRoots $PA_MT
+ls ...
+
+nodeMT $ROOT "mt" "uk"
+set UK_MT=$MT_NAME
+
+nodeMT $UK_MT "mt" "cambridge"
+set CAM_MT=$MT_NAME
+
+setLocalRoots $ROOT
+ls ...
+setLocalRoots $UK_MT
+ls ...
+setLocalRoots $CAM_MT
+ls ...
+
+# Create a MountTable tree without using the internal 'mt' suffix as in the
+# examples above.
+nodeMT $ROOT "" "france"
+set FRANCE_MT=$MT_NAME
+nodeMT $FRANCE_MT "" "paris"
+setLocalRoots $ROOT
+ls ...
+
+# Conclusion: some of this behaviour seems a little awkward. In particular:
+#
+# ls (i.e. glob) ... on the root doesn't seem to iterate down the name
+# space hierarchy, I was under the impression that the local MountTable
+# client would do so? Well, it turns out that this only works if the
+# internal suffix (mt in the USA/UK trees, empty in the France tree) is
+# empty!!
+#
+# ls using the local MountTable on a rooted name doesn't seem to work either,
+# thus making it impossible to see the whole name space without setting the
+# local MountTable's root which will clearly cause problems for concurrent
+# clients.
+#
+# I find the distinction between the "local MountTable client" and
+# "remote MountTable or local MountTable server" awkward. Maybe we should
+# call the "local MountTable client" the "Resolver?".
+#
+
+
+
diff --git a/tools/profile/impl/impl_test.go b/tools/profile/impl/impl_test.go
index 9435742..8e6deba 100644
--- a/tools/profile/impl/impl_test.go
+++ b/tools/profile/impl/impl_test.go
@@ -116,7 +116,7 @@
cmd := impl.Root()
var stdout, stderr bytes.Buffer
cmd.Init(nil, &stdout, &stderr)
- exists := naming.JoinAddressName(endpoint.String(), "exists")
+ exists := naming.JoinAddressName(endpoint.String(), "//exists")
// Test the 'label' command.
if err := cmd.Execute([]string{"label", exists}); err != nil {
