Adding ChromeVox as a component extensions (enabled only for ChromeOS, for no...

chrome/browser/resources/access_chromevox/audio/common/abstract_earcons_manager.js

+// Copyright (c) 2011 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 This is the base class responsible for earcons management.
+ */
+
+goog.provide('cvox.AbstractEarconsManager');
+
+goog.require('cvox.AbstractEarcons');
+
+/**
+ * @constructor
+ * @extends {cvox.AbstractEarcons}
+ */
+cvox.AbstractEarconsManager = function() {
+  //Inherit AbstractEarcons
+  cvox.AbstractEarcons.call(this);
+};
+goog.inherits(cvox.AbstractEarconsManager, cvox.AbstractEarcons);
+
+/**
+ * Switch to the next earcon set and optionally announce its name.
+ * If no earcon sets have been specified this function is a NOOP.
+ * @param {boolean} announce If true, will announce the name of the
+ *     new earcon set.
+ */
+cvox.AbstractEarconsManager.prototype.nextEarcons = function(announce) {
+  // TODO(svetoslavganov): Figure out if the user should be able to switch
+  // earcons and if not remove this method.
+  if (this.logEnabled()) {
+    this.log('[' + this.getName() + '] nextEarcons(' + announce + ')');
+  }
+};