permissions/app/src/main/java/examples/baku/io/permissions/PermissionedTextLayout.java - release.projects.baku - Git at Google

 // Copyright 2016 The Vanadium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.

 package examples.baku.io.permissions;

 import android.app.Activity;
 import android.content.Context;
 import android.content.ContextWrapper;
 import android.content.SharedPreferences;
 import android.graphics.Color;
 import android.graphics.PorterDuff;
 import android.graphics.drawable.Drawable;
 import android.graphics.drawable.Icon;
 import android.support.design.widget.TextInputLayout;
 import android.text.Editable;
 import android.text.InputType;
 import android.text.Spannable;
 import android.text.SpannableStringBuilder;
 import android.text.TextWatcher;
 import android.text.method.KeyListener;
 import android.text.style.BackgroundColorSpan;
 import android.text.style.StrikethroughSpan;
 import android.util.AttributeSet;
 import android.view.Gravity;
 import android.view.KeyEvent;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.inputmethod.EditorInfo;
 import android.widget.ArrayAdapter;
 import android.widget.AutoCompleteTextView;
 import android.widget.EditText;
 import android.widget.FrameLayout;
 import android.widget.ImageView;
 import android.widget.TextView;
 import android.widget.Toast;

 import com.google.firebase.database.DatabaseError;
 import com.joanzapata.iconify.IconDrawable;
 import com.joanzapata.iconify.fonts.MaterialIcons;

 import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Set;
 import java.util.SortedMap;
 import java.util.TreeMap;

 import examples.baku.io.permissions.synchronization.SyncText;
 import examples.baku.io.permissions.synchronization.SyncTextDiff;

 /**
  * Created by phamilton on 7/26/16.
  */
 public class PermissionedTextLayout extends FrameLayout implements PermissionManager.OnPermissionChangeListener, PermissionManager.OnRequestListener {

     private static final String ANDROID_NS = "http://schemas.android.com/apk/res/android";
     private int permissions = -1;
     final Set<PermissionRequest> requests = new HashSet<>();
     private String label;

     private SyncText syncText;
     private TextInputLayout textInputLayout;
     private PermissionedEditText editText;
     private FrameLayout overlay;

     private final SortedMap<Integer, ActionItem> mActions = new TreeMap<>();
     private ActionItem mPrimaryAction;

     private ImageView actionButton;

     private PermissionedTextListener permissionedTextListener = null;

     private int inputType = InputType.TYPE_CLASS_TEXT;

     private boolean editable = true;


     private int version = -1;

     public void unlink() {
         if (syncText != null) {
             syncText.unlink();
         }
     }


     public interface PermissionedTextListener {
         void onSelected(SyncTextDiff diff, PermissionedTextLayout text);

         void onAction(int action, PermissionedTextLayout text);
     }

     public PermissionedTextLayout(Context context) {
         this(context, null, 0);
     }

     public PermissionedTextLayout(Context context, AttributeSet attrs) {
         this(context, attrs, 0);
     }

     public PermissionedTextLayout(Context context, AttributeSet attrs, int defStyleAttr) {
         super(context, attrs, defStyleAttr);
         init(context, attrs, defStyleAttr);
     }

     public void setAutoCompleteAdapter(ArrayAdapter<String> adapter) {
         editText.setAdapter(adapter);
     }

     public void init(final Context context, AttributeSet attrs, int defStyleAttr) {
         FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(
                 LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.WRAP_CONTENT);
         textInputLayout = new TextInputLayout(context);
         textInputLayout.setLayoutParams(params);
         String hint = attrs.getAttributeValue(ANDROID_NS, "hint");
         if (hint != null) {
             textInputLayout.setHint(hint);
         }
         editText = new PermissionedEditText(context);
         editText.setSelectionListener(selectionListener);
         editText.setId(View.generateViewId());
         editText.setLayoutParams(params);
         int inputType = attrs.getAttributeIntValue(ANDROID_NS, "inputType", EditorInfo.TYPE_NULL);
         if (inputType != EditorInfo.TYPE_NULL) {
             editText.setInputType(inputType);
         }


         textInputLayout.addView(editText, params);
         addView(textInputLayout);

         overlay = new FrameLayout(context);
         overlay.setLayoutParams(new FrameLayout.LayoutParams(LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.MATCH_PARENT));
 //        overlay.setBackgroundColor(Color.BLACK);
         overlay.setBackgroundResource(R.drawable.permission_overlay_bg);
         overlay.setOnTouchListener(new OnTouchListener() {
             @Override
             public boolean onTouch(View v, MotionEvent event) {
                 if (event.getAction() == MotionEvent.ACTION_UP) {
                     Toast.makeText(getContext(), "This device does not have permission to view this field", 0).show();
                 }
                 return true;
             }
         });
         overlay.setVisibility(GONE);
         TextView overlayLabel = new TextView(context);
         overlayLabel.setTextSize(24);
         overlayLabel.setGravity(Gravity.CENTER_HORIZONTAL | Gravity.CENTER_VERTICAL);
         overlayLabel.setText(hint + " Unavailable");

         overlay.addView(overlayLabel);
         addView(overlay);

         actionButton = new ImageView(context);
         IconDrawable drawable = new IconDrawable(context, MaterialIcons.md_check);
         drawable.color(Color.GREEN);
         actionButton.setImageDrawable(drawable);
         actionButton.setLayoutParams(new FrameLayout.LayoutParams(100, 100, Gravity.RIGHT));
         actionButton.setOnTouchListener(new OnTouchListener() {
             @Override
             public boolean onTouch(View v, MotionEvent event) {
                 switch (event.getAction()) {
                     case MotionEvent.ACTION_DOWN: {
                         ImageView view = (ImageView) v;
                         view.getDrawable().setColorFilter(0x77000000, PorterDuff.Mode.SRC_ATOP);
                         view.invalidate();
                         break;
                     }
                     case MotionEvent.ACTION_UP:
                         if (permissionedTextListener != null) {
                             int aId = 0;
                             if (mPrimaryAction != null) {
                                 aId = mPrimaryAction.id;
                             }
                             permissionedTextListener.onAction(aId, PermissionedTextLayout.this);
                         }
                     case MotionEvent.ACTION_CANCEL: {
                         ImageView view = (ImageView) v;
                         view.getDrawable().clearColorFilter();
                         view.invalidate();
                         break;
                     }
                 }
                 return true;
             }
         });
         actionButton.setVisibility(GONE);
         addView(actionButton);
     }

     public void setInputType(int inputType) {
         this.inputType = inputType;
     }

     Spannable diffSpannable(LinkedList<SyncTextDiff> diffs) {
         SpannableStringBuilder result = new SpannableStringBuilder();

         int start;
         String text;
         int color = Color.YELLOW;
         for (SyncTextDiff diff : diffs) {
             start = result.length();
             text = diff.text;
             switch (diff.operation) {
                 case SyncTextDiff.DELETE:
                     result.append(text, new BackgroundColorSpan(color), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
                     result.setSpan(new StrikethroughSpan(), start, start + text.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
                     break;
                 case SyncTextDiff.INSERT:
                     result.append(text, new BackgroundColorSpan(color), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
                     break;
                 case SyncTextDiff.EQUAL:
                     result.append(text);
                     break;
             }
         }
         return result;
     }

     public void setPermissionedTextListener(PermissionedTextListener permissionedTextListener) {
         this.permissionedTextListener = permissionedTextListener;
     }

     public void setSyncText(SyncText sync) {
         this.syncText = sync;

         syncText.setOnTextChangeListener(new SyncText.OnTextChangeListener() {
             @Override
             public void onTextChange(final String currentText, final LinkedList<SyncTextDiff> diffs, int ver) {
                 if (ver >= version) {
                     updateText(diffs);
                 }
             }
         });

         editText.addTextChangedListener(watcher);
     }

     @Override
     public void onPermissionChange(int current) {
         if (current != permissions) {
             this.permissions = current;
             update();
         }
     }

     private void update() {
         if (syncText != null) {
             this.syncText.setPermissions(permissions);
             if ((permissions & PermissionManager.FLAG_WRITE) == PermissionManager.FLAG_WRITE) {
                 editText.setVisibility(VISIBLE);
                 overlay.setVisibility(GONE);
                 editText.setInputType(inputType);
                 editText.setEnabled(true);
                 syncText.acceptSuggestions();
             } else if ((permissions & PermissionManager.FLAG_SUGGEST) == PermissionManager.FLAG_SUGGEST) {
                 editText.setVisibility(VISIBLE);
                 overlay.setVisibility(GONE);
                 editText.setInputType(inputType);
                 editText.setEnabled(true);
             } else if ((permissions & PermissionManager.FLAG_READ) == PermissionManager.FLAG_READ) {
                 editText.setVisibility(VISIBLE);
                 overlay.setVisibility(GONE);
                 syncText.rejectSuggestions();
                 editText.setInputType(EditorInfo.TYPE_NULL);
                 editText.setEnabled(false);
             } else {
                 editText.setVisibility(GONE);
                 overlay.setVisibility(VISIBLE);
                 syncText.rejectSuggestions();
                 editText.setInputType(EditorInfo.TYPE_NULL);
                 editText.setEnabled(false);
             }
         }
         if (!editable) {
             editText.disable();
         } else {
             editText.enable();
         }
     }

     public void setEditable(boolean editable) {
 //        this.editable = editable;
         update();
     }

     public String getText() {
         return editText.getText().toString();
     }

     private synchronized void updateText(final LinkedList<SyncTextDiff> diffs) {
         Activity activity = getActivity();
         if (activity != null) {
             activity.runOnUiThread(new Runnable() {
                 @Override
                 public void run() {
                     editText.removeTextChangedListener(watcher);
                     int prevSel = editText.getSelectionStart();
                     editText.setText(diffSpannable(diffs));
                     int sel = Math.min(prevSel, editText.length());
                     if (sel > -1) {
                         editText.setSelection(sel);
                     }
                     editText.addTextChangedListener(watcher);
                 }
             });
         }
     }

     private TextWatcher watcher = new TextWatcher() {
         @Override
         public void beforeTextChanged(CharSequence s, int start, int count, int after) {

         }

         @Override
         public void onTextChanged(CharSequence s, int start, int before, int count) {
             version = Math.max(version, syncText.update(s.toString()));
         }

         @Override
         public void afterTextChanged(Editable s) {

         }
     };

     public void clearActions() {
         mActions.clear();
         mPrimaryAction = null;
         updateActions();
     }

     public void removeAction(int id) {
         mActions.remove(id);
         updateActions();
     }

     public void setAction(int id, Drawable icon, String label) {
         mActions.put(id, new ActionItem(id, icon, label));
         mPrimaryAction = mActions.values().iterator().next();
         updateActions();
     }

     public void updateActions() {
         if (mActions.size() == 1) {
             ActionItem action = mPrimaryAction;
             actionButton.setVisibility(VISIBLE);
             actionButton.setImageDrawable(action.icon);
         } else {
             actionButton.setVisibility(GONE);
         }
     }

     public void acceptSuggestions(String src) {
         syncText.acceptSuggestions(src);
     }


     public void rejectSuggestions(String src) {
         syncText.rejectSuggestions(src);
     }

     @Override
     public void onCancelled(DatabaseError databaseError) {

     }

     @Override
     public boolean onRequest(PermissionRequest request, Blessing blessing) {
         return false;
     }

     @Override
     public void onRequestRemoved(PermissionRequest request, Blessing blessing) {

     }

     private Activity getActivity() {
         Context context = getContext();
         while (context instanceof ContextWrapper) {
             if (context instanceof Activity) {
                 return (Activity) context;
             }
             context = ((ContextWrapper) context).getBaseContext();
         }
         return null;
     }

     private OnSelectionChangedListener selectionListener = new OnSelectionChangedListener() {
         @Override
         public void onSelectionChanged(int selStart, int selEnd, boolean focus) {
             if (focus && selStart >= 0) {
                 SyncTextDiff diff = getDiffAt(selStart);
                 if (diff != null && diff.operation != SyncTextDiff.EQUAL) {
                     if (permissionedTextListener != null) {
                         permissionedTextListener.onSelected(diff, PermissionedTextLayout.this);
                     }
                 }
             }
         }
     };

     public List<SyncTextDiff> getSuggestions() {
         List<SyncTextDiff> result = new LinkedList<>();
         for (SyncTextDiff diff : syncText.getDiffs()) {
             if (diff.operation != SyncTextDiff.EQUAL && diff.permission == PermissionManager.FLAG_SUGGEST) {
                 result.add(diff);
             }
         }
         return result;
     }

     private SyncTextDiff getDiffAt(int index) {
         int count = 0;
         if (syncText != null) {
             for (SyncTextDiff diff : syncText.getDiffs()) {
                 count += diff.length();
                 if (index < count) {
                     return diff;
                 }
             }
         }
         return null;
     }

     class ActionItem {
         int id;
         Drawable icon;
         String label;

         public ActionItem(int id, Drawable icon, String label) {
             this.id = id;
             this.icon = icon;
             this.label = label;
         }
     }

     private interface OnSelectionChangedListener {
         void onSelectionChanged(int selStart, int selEnd, boolean focus);
     }

     private class PermissionedEditText extends AutoCompleteTextView {
         private OnSelectionChangedListener mSelectionListener;
         private KeyListener keyListener;

         public PermissionedEditText(Context context) {
             super(context);
             init();
         }

         public PermissionedEditText(Context context, AttributeSet attrs) {
             super(context, attrs);
             init();
         }

         public PermissionedEditText(Context context, AttributeSet attrs, int defStyleAttr) {
             super(context, attrs, defStyleAttr);
             init();
         }

         private void init() {
             keyListener = getKeyListener();
         }


         public void setSelectionListener(OnSelectionChangedListener mSelectionListener) {
             this.mSelectionListener = mSelectionListener;
         }

         public void enable() {
             setKeyListener(keyListener);
         }

         public void disable() {
             setKeyListener(null);
         }

         @Override
         protected void onSelectionChanged(int selStart, int selEnd) {
             super.onSelectionChanged(selStart, selEnd);
             if (mSelectionListener != null) {
                 mSelectionListener.onSelectionChanged(selStart, selEnd, hasFocus());
             }
         }
     }
 }
	// Copyright 2016 The Vanadium Authors. All rights reserved.
	// Use of this source code is governed by a BSD-style
	// license that can be found in the LICENSE file.

	package examples.baku.io.permissions;

	import android.app.Activity;
	import android.content.Context;
	import android.content.ContextWrapper;
	import android.content.SharedPreferences;
	import android.graphics.Color;
	import android.graphics.PorterDuff;
	import android.graphics.drawable.Drawable;
	import android.graphics.drawable.Icon;
	import android.support.design.widget.TextInputLayout;
	import android.text.Editable;
	import android.text.InputType;
	import android.text.Spannable;
	import android.text.SpannableStringBuilder;
	import android.text.TextWatcher;
	import android.text.method.KeyListener;
	import android.text.style.BackgroundColorSpan;
	import android.text.style.StrikethroughSpan;
	import android.util.AttributeSet;
	import android.view.Gravity;
	import android.view.KeyEvent;
	import android.view.MotionEvent;
	import android.view.View;
	import android.view.inputmethod.EditorInfo;
	import android.widget.ArrayAdapter;
	import android.widget.AutoCompleteTextView;
	import android.widget.EditText;
	import android.widget.FrameLayout;
	import android.widget.ImageView;
	import android.widget.TextView;
	import android.widget.Toast;

	import com.google.firebase.database.DatabaseError;
	import com.joanzapata.iconify.IconDrawable;
	import com.joanzapata.iconify.fonts.MaterialIcons;

	import java.util.ArrayList;
	import java.util.HashSet;
	import java.util.LinkedList;
	import java.util.List;
	import java.util.Set;
	import java.util.SortedMap;
	import java.util.TreeMap;

	import examples.baku.io.permissions.synchronization.SyncText;
	import examples.baku.io.permissions.synchronization.SyncTextDiff;

	/**
	* Created by phamilton on 7/26/16.
	*/
	public class PermissionedTextLayout extends FrameLayout implements PermissionManager.OnPermissionChangeListener, PermissionManager.OnRequestListener {

	private static final String ANDROID_NS = "http://schemas.android.com/apk/res/android";
	private int permissions = -1;
	final Set<PermissionRequest> requests = new HashSet<>();
	private String label;

	private SyncText syncText;
	private TextInputLayout textInputLayout;
	private PermissionedEditText editText;
	private FrameLayout overlay;

	private final SortedMap<Integer, ActionItem> mActions = new TreeMap<>();
	private ActionItem mPrimaryAction;

	private ImageView actionButton;

	private PermissionedTextListener permissionedTextListener = null;

	private int inputType = InputType.TYPE_CLASS_TEXT;

	private boolean editable = true;


	private int version = -1;

	public void unlink() {
	if (syncText != null) {
	syncText.unlink();
	}
	}


	public interface PermissionedTextListener {
	void onSelected(SyncTextDiff diff, PermissionedTextLayout text);

	void onAction(int action, PermissionedTextLayout text);
	}

	public PermissionedTextLayout(Context context) {
	this(context, null, 0);
	}

	public PermissionedTextLayout(Context context, AttributeSet attrs) {
	this(context, attrs, 0);
	}

	public PermissionedTextLayout(Context context, AttributeSet attrs, int defStyleAttr) {
	super(context, attrs, defStyleAttr);
	init(context, attrs, defStyleAttr);
	}

	public void setAutoCompleteAdapter(ArrayAdapter<String> adapter) {
	editText.setAdapter(adapter);
	}

	public void init(final Context context, AttributeSet attrs, int defStyleAttr) {
	FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(
	LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.WRAP_CONTENT);
	textInputLayout = new TextInputLayout(context);
	textInputLayout.setLayoutParams(params);
	String hint = attrs.getAttributeValue(ANDROID_NS, "hint");
	if (hint != null) {
	textInputLayout.setHint(hint);
	}
	editText = new PermissionedEditText(context);
	editText.setSelectionListener(selectionListener);
	editText.setId(View.generateViewId());
	editText.setLayoutParams(params);
	int inputType = attrs.getAttributeIntValue(ANDROID_NS, "inputType", EditorInfo.TYPE_NULL);
	if (inputType != EditorInfo.TYPE_NULL) {
	editText.setInputType(inputType);
	}


	textInputLayout.addView(editText, params);
	addView(textInputLayout);

	overlay = new FrameLayout(context);
	overlay.setLayoutParams(new FrameLayout.LayoutParams(LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.MATCH_PARENT));
	// overlay.setBackgroundColor(Color.BLACK);
	overlay.setBackgroundResource(R.drawable.permission_overlay_bg);
	overlay.setOnTouchListener(new OnTouchListener() {
	@Override
	public boolean onTouch(View v, MotionEvent event) {
	if (event.getAction() == MotionEvent.ACTION_UP) {
	Toast.makeText(getContext(), "This device does not have permission to view this field", 0).show();
	}
	return true;
	}
	});
	overlay.setVisibility(GONE);
	TextView overlayLabel = new TextView(context);
	overlayLabel.setTextSize(24);
	overlayLabel.setGravity(Gravity.CENTER_HORIZONTAL \| Gravity.CENTER_VERTICAL);
	overlayLabel.setText(hint + " Unavailable");

	overlay.addView(overlayLabel);
	addView(overlay);

	actionButton = new ImageView(context);
	IconDrawable drawable = new IconDrawable(context, MaterialIcons.md_check);
	drawable.color(Color.GREEN);
	actionButton.setImageDrawable(drawable);
	actionButton.setLayoutParams(new FrameLayout.LayoutParams(100, 100, Gravity.RIGHT));
	actionButton.setOnTouchListener(new OnTouchListener() {
	@Override
	public boolean onTouch(View v, MotionEvent event) {
	switch (event.getAction()) {
	case MotionEvent.ACTION_DOWN: {
	ImageView view = (ImageView) v;
	view.getDrawable().setColorFilter(0x77000000, PorterDuff.Mode.SRC_ATOP);
	view.invalidate();
	break;
	}
	case MotionEvent.ACTION_UP:
	if (permissionedTextListener != null) {
	int aId = 0;
	if (mPrimaryAction != null) {
	aId = mPrimaryAction.id;
	}
	permissionedTextListener.onAction(aId, PermissionedTextLayout.this);
	}
	case MotionEvent.ACTION_CANCEL: {
	ImageView view = (ImageView) v;
	view.getDrawable().clearColorFilter();
	view.invalidate();
	break;
	}
	}
	return true;
	}
	});
	actionButton.setVisibility(GONE);
	addView(actionButton);
	}

	public void setInputType(int inputType) {
	this.inputType = inputType;
	}

	Spannable diffSpannable(LinkedList<SyncTextDiff> diffs) {
	SpannableStringBuilder result = new SpannableStringBuilder();

	int start;
	String text;
	int color = Color.YELLOW;
	for (SyncTextDiff diff : diffs) {
	start = result.length();
	text = diff.text;
	switch (diff.operation) {
	case SyncTextDiff.DELETE:
	result.append(text, new BackgroundColorSpan(color), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
	result.setSpan(new StrikethroughSpan(), start, start + text.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
	break;
	case SyncTextDiff.INSERT:
	result.append(text, new BackgroundColorSpan(color), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
	break;
	case SyncTextDiff.EQUAL:
	result.append(text);
	break;
	}
	}
	return result;
	}

	public void setPermissionedTextListener(PermissionedTextListener permissionedTextListener) {
	this.permissionedTextListener = permissionedTextListener;
	}

	public void setSyncText(SyncText sync) {
	this.syncText = sync;

	syncText.setOnTextChangeListener(new SyncText.OnTextChangeListener() {
	@Override
	public void onTextChange(final String currentText, final LinkedList<SyncTextDiff> diffs, int ver) {
	if (ver >= version) {
	updateText(diffs);
	}
	}
	});

	editText.addTextChangedListener(watcher);
	}

	@Override
	public void onPermissionChange(int current) {
	if (current != permissions) {
	this.permissions = current;
	update();
	}
	}

	private void update() {
	if (syncText != null) {
	this.syncText.setPermissions(permissions);
	if ((permissions & PermissionManager.FLAG_WRITE) == PermissionManager.FLAG_WRITE) {
	editText.setVisibility(VISIBLE);
	overlay.setVisibility(GONE);
	editText.setInputType(inputType);
	editText.setEnabled(true);
	syncText.acceptSuggestions();
	} else if ((permissions & PermissionManager.FLAG_SUGGEST) == PermissionManager.FLAG_SUGGEST) {
	editText.setVisibility(VISIBLE);
	overlay.setVisibility(GONE);
	editText.setInputType(inputType);
	editText.setEnabled(true);
	} else if ((permissions & PermissionManager.FLAG_READ) == PermissionManager.FLAG_READ) {
	editText.setVisibility(VISIBLE);
	overlay.setVisibility(GONE);
	syncText.rejectSuggestions();
	editText.setInputType(EditorInfo.TYPE_NULL);
	editText.setEnabled(false);
	} else {
	editText.setVisibility(GONE);
	overlay.setVisibility(VISIBLE);
	syncText.rejectSuggestions();
	editText.setInputType(EditorInfo.TYPE_NULL);
	editText.setEnabled(false);
	}
	}
	if (!editable) {
	editText.disable();
	} else {
	editText.enable();
	}
	}

	public void setEditable(boolean editable) {
	// this.editable = editable;
	update();
	}

	public String getText() {
	return editText.getText().toString();
	}

	private synchronized void updateText(final LinkedList<SyncTextDiff> diffs) {
	Activity activity = getActivity();
	if (activity != null) {
	activity.runOnUiThread(new Runnable() {
	@Override
	public void run() {
	editText.removeTextChangedListener(watcher);
	int prevSel = editText.getSelectionStart();
	editText.setText(diffSpannable(diffs));
	int sel = Math.min(prevSel, editText.length());
	if (sel > -1) {
	editText.setSelection(sel);
	}
	editText.addTextChangedListener(watcher);
	}
	});
	}
	}

	private TextWatcher watcher = new TextWatcher() {
	@Override
	public void beforeTextChanged(CharSequence s, int start, int count, int after) {

	}

	@Override
	public void onTextChanged(CharSequence s, int start, int before, int count) {
	version = Math.max(version, syncText.update(s.toString()));
	}

	@Override
	public void afterTextChanged(Editable s) {

	}
	};

	public void clearActions() {
	mActions.clear();
	mPrimaryAction = null;
	updateActions();
	}

	public void removeAction(int id) {
	mActions.remove(id);
	updateActions();
	}

	public void setAction(int id, Drawable icon, String label) {
	mActions.put(id, new ActionItem(id, icon, label));
	mPrimaryAction = mActions.values().iterator().next();
	updateActions();
	}

	public void updateActions() {
	if (mActions.size() == 1) {
	ActionItem action = mPrimaryAction;
	actionButton.setVisibility(VISIBLE);
	actionButton.setImageDrawable(action.icon);
	} else {
	actionButton.setVisibility(GONE);
	}
	}

	public void acceptSuggestions(String src) {
	syncText.acceptSuggestions(src);
	}


	public void rejectSuggestions(String src) {
	syncText.rejectSuggestions(src);
	}

	@Override
	public void onCancelled(DatabaseError databaseError) {

	}

	@Override
	public boolean onRequest(PermissionRequest request, Blessing blessing) {
	return false;
	}

	@Override
	public void onRequestRemoved(PermissionRequest request, Blessing blessing) {

	}

	private Activity getActivity() {
	Context context = getContext();
	while (context instanceof ContextWrapper) {
	if (context instanceof Activity) {
	return (Activity) context;
	}
	context = ((ContextWrapper) context).getBaseContext();
	}
	return null;
	}

	private OnSelectionChangedListener selectionListener = new OnSelectionChangedListener() {
	@Override
	public void onSelectionChanged(int selStart, int selEnd, boolean focus) {
	if (focus && selStart >= 0) {
	SyncTextDiff diff = getDiffAt(selStart);
	if (diff != null && diff.operation != SyncTextDiff.EQUAL) {
	if (permissionedTextListener != null) {
	permissionedTextListener.onSelected(diff, PermissionedTextLayout.this);
	}
	}
	}
	}
	};

	public List<SyncTextDiff> getSuggestions() {
	List<SyncTextDiff> result = new LinkedList<>();
	for (SyncTextDiff diff : syncText.getDiffs()) {
	if (diff.operation != SyncTextDiff.EQUAL && diff.permission == PermissionManager.FLAG_SUGGEST) {
	result.add(diff);
	}
	}
	return result;
	}

	private SyncTextDiff getDiffAt(int index) {
	int count = 0;
	if (syncText != null) {
	for (SyncTextDiff diff : syncText.getDiffs()) {
	count += diff.length();
	if (index < count) {
	return diff;
	}
	}
	}
	return null;
	}

	class ActionItem {
	int id;
	Drawable icon;
	String label;

	public ActionItem(int id, Drawable icon, String label) {
	this.id = id;
	this.icon = icon;
	this.label = label;
	}
	}

	private interface OnSelectionChangedListener {
	void onSelectionChanged(int selStart, int selEnd, boolean focus);
	}

	private class PermissionedEditText extends AutoCompleteTextView {
	private OnSelectionChangedListener mSelectionListener;
	private KeyListener keyListener;

	public PermissionedEditText(Context context) {
	super(context);
	init();
	}

	public PermissionedEditText(Context context, AttributeSet attrs) {
	super(context, attrs);
	init();
	}

	public PermissionedEditText(Context context, AttributeSet attrs, int defStyleAttr) {
	super(context, attrs, defStyleAttr);
	init();
	}

	private void init() {
	keyListener = getKeyListener();
	}


	public void setSelectionListener(OnSelectionChangedListener mSelectionListener) {
	this.mSelectionListener = mSelectionListener;
	}

	public void enable() {
	setKeyListener(keyListener);
	}

	public void disable() {
	setKeyListener(null);
	}

	@Override
	protected void onSelectionChanged(int selStart, int selEnd) {
	super.onSelectionChanged(selStart, selEnd);
	if (mSelectionListener != null) {
	mSelectionListener.onSelectionChanged(selStart, selEnd, hasFocus());
	}
	}
	}
	}