Begin using ChromeVox Next to read tab and window titles.

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

 // Copyright 2015 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 Handles automation from a desktop automation node.
  */
 
 goog.provide('DesktopAutomationHandler');
 
@@ skipping 35 matching lines @@
   this.addListener_(e.alert, this.onAlert);
   this.addListener_(e.ariaAttributeChanged, this.onEventIfInRange);
   this.addListener_(e.checkedStateChanged, this.onEventIfInRange);
   this.addListener_(e.focus, this.onFocus);
   this.addListener_(e.hover, this.onEventWithFlushedOutput);
   this.addListener_(e.loadComplete, this.onLoadComplete);
   this.addListener_(e.menuEnd, this.onMenuEnd);
   this.addListener_(e.menuListItemSelected, this.onEventIfSelected);
   this.addListener_(e.menuStart, this.onMenuStart);
   this.addListener_(e.scrollPositionChanged, this.onScrollPositionChanged);
-  this.addListener_(e.selection, this.onEventWithFlushedOutput);
+  this.addListener_(e.selection, this.onSelection);
   this.addListener_(e.textChanged, this.onTextChanged);
   this.addListener_(e.textSelectionChanged, this.onTextSelectionChanged);
   this.addListener_(e.valueChanged, this.onValueChanged);
 
   AutomationObjectConstructorInstaller.init(node, function() {
     chrome.automation.getFocus((function(focus) {
       if (ChromeVoxState.instance.mode != ChromeVoxMode.FORCE_NEXT)
         return;
 
       if (focus) {
@@ skipping 154 matching lines @@
    * @param {!AutomationEvent} evt
    */
   onLoadComplete: function(evt) {
     ChromeVoxState.instance.refreshMode(evt.target);
 
     // Don't process nodes inside of web content if ChromeVox Next is inactive.
     if (evt.target.root.role != RoleType.desktop &&
         ChromeVoxState.instance.mode === ChromeVoxMode.CLASSIC)
       return;
 
-    chrome.automation.getFocus((function(focus) {
-      if (!focus)
+    chrome.automation.getFocus(function(focus) {
+      if (!focus || !AutomationUtil.isDescendantOf(focus, evt.target))
         return;
 
       // If initial focus was already placed on this page (e.g. if a user starts
       // tabbing before load complete), then don't move ChromeVox's position on
       // the page.
       if (ChromeVoxState.instance.currentRange &&
           ChromeVoxState.instance.currentRange.start.node.root == focus.root)
         return;
 
       ChromeVoxState.instance.setCurrentRange(cursors.Range.fromNode(focus));
       new Output().withRichSpeechAndBraille(
           ChromeVoxState.instance.currentRange, null, evt.type).go();
-    }).bind(this));
+    }.bind(this));
   },
 
-
-    /**
+  /**
    * Provides all feedback once a text changed event fires.
    * @param {!AutomationEvent} evt
    */
   onTextChanged: function(evt) {
     if (evt.target.state.editable)
       this.onEditableChanged_(evt);
   },
 
   /**
    * Provides all feedback once a text selection changed event fires.
@@ skipping 70 matching lines @@
   onScrollPositionChanged: function(evt) {
     if (ChromeVoxState.instance.mode === ChromeVoxMode.CLASSIC)
       return;
 
     var currentRange = ChromeVoxState.instance.currentRange;
     if (currentRange)
       new Output().withLocation(currentRange, null, evt.type).go();
   },
 
   /**
+   * @param {!AutomationEvent} evt
+   */
+  onSelection: function(evt) {
+    chrome.automation.getFocus(function(focus) {
+      // Some cases (e.g. in overview mode), require overriding the assumption
+      // that focus is an ancestor of a selection target.
+      var override =
+          evt.target.root == focus.root && focus.root.role == RoleType.desktop;
+      if (override || AutomationUtil.isDescendantOf(evt.target, focus))
+        this.onEventDefault(evt);
+    }.bind(this));
+  },
+
+  /**
    * Provides all feedback once a menu start event fires.
    * @param {!AutomationEvent} evt
    */
   onMenuStart: function(evt) {
     global.backgroundObj.startExcursion();
     this.onEventDefault(evt);
   },
 
   /**
    * Provides all feedback once a menu end event fires.
@@ skipping 24 matching lines @@
   if (cvox.ChromeVox.isMac)
     return;
   chrome.automation.getDesktop(function(desktop) {
     global.desktopAutomationHandler = new DesktopAutomationHandler(desktop);
   });
 };
 
 DesktopAutomationHandler.init_();
 
 });  // goog.scope