chrome/browser/resources/chromeos/chromevox/walkers/character_walker.js

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 /**
   6  * @fileoverview A class for walking one character at a time.
   7  */
   8
   9
  10 goog.provide('cvox.CharacterWalker');
  11
  12 goog.require('cvox.AbstractSelectionWalker');
  13 goog.require('cvox.TraverseContent');
  14
  15 /**
  16  * @constructor
  17  * @extends {cvox.AbstractSelectionWalker}
  18  */
  19 cvox.CharacterWalker = function() {
  20   cvox.AbstractSelectionWalker.call(this);
  21   this.grain = cvox.TraverseContent.kCharacter;
  22 };
  23 goog.inherits(cvox.CharacterWalker, cvox.AbstractSelectionWalker);
  24
  25 /**
  26  * @override
  27  */
  28 cvox.CharacterWalker.prototype.getDescription = function(prevSel, sel) {
  29   var desc = goog.base(this, 'getDescription', prevSel, sel);
  30   desc.forEach(function(item) {
  31     if (!item.personality) {
  32       item.personality = {};
  33     }
  34     item.personality['phoneticCharacters'] = true;
  35   });
  36   return desc;
  37 };
  38
  39 /**
  40  * @override
  41  */
  42 cvox.CharacterWalker.prototype.getGranularityMsg = function() {
  43   return cvox.ChromeVox.msgs.getMsg('character_granularity');
  44 };