AX checked state changes

chrome/browser/resources/chromeos/chromevox/cvox2/background/output.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @fileoverview Provides output services for ChromeVox.
  */
 
 goog.provide('Output');
 goog.provide('Output.EventType');
@@ skipping 1136 matching lines @@
           }
         } else if (token == 'parentChildCount') {
           if (node.parent) {
             options.annotation.push(token);
             var count = node.parent.children.filter(function(child) {
               return node.role == child.role;
             }).length;
             this.append_(buff, String(count));
           }
         } else if (token == 'checked') {
-          var msg;
-          var ariaChecked = node.htmlAttributes['aria-checked'];
-          switch (ariaChecked) {
-            case 'mixed':
-              msg = 'aria_checked_mixed';
-              break;
-            case 'true':
-              msg = 'aria_checked_true';
-              break;
-            case 'false':
-              msg = 'aria_checked_false';
-              break;
-            default:
-              msg = node.state[StateType.CHECKED] ?
-                  'aria_checked_true' : 'aria_checked_false';
-          }
+          var msg = node.buttonMixed ? 'aria_checked_mixed' : (
+              node.state.checked ? 'aria_checked_true' : 'aria_checked_false');
           this.format_(node, '@' + msg, buff);
         } else if (token == 'state') {
           if (node.state) {
             Object.getOwnPropertyNames(node.state).forEach(function(s) {
               var stateInfo = Output.STATE_INFO_[s];
               if (stateInfo && !stateInfo.isRoleSpecific && stateInfo.on)
               this.format_(node, '@' + stateInfo.on.msgId, buff);
             }.bind(this));
           }
         } else if (token == 'find') {
@@ skipping 693 matching lines @@
   /**
    * Gets the output buffer for braille.
    * @return {!Spannable}
    */
   get brailleOutputForTest() {
     return this.mergeBraille_(this.brailleBuffer_);
   }
 };
 
 });  // goog.scope