Add base class cr.ui.BubbleButton for options.ControlledSettingIndicator

chrome/browser/resources/options/controlled_setting.js

 // Copyright (c) 2012 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.
 
 cr.define('options', function() {
   var Preferences = options.Preferences;
 
   /**
    * A controlled setting indicator that can be placed on a setting as an
    * indicator that the value is controlled by some external entity such as
    * policy or an extension.
    * @constructor
    * @extends {HTMLSpanElement}
    */
   var ControlledSettingIndicator = cr.ui.define('span');
 
   ControlledSettingIndicator.prototype = {
-    __proto__: HTMLSpanElement.prototype,
+    __proto__: cr.ui.BubbleButton.prototype,
 
     /**
      * Decorates the base element to show the proper icon.
      */
     decorate: function() {
-      var self = this;
+      cr.ui.BubbleButton.prototype.decorate.call(this);
+      this.classList.add('controlled-setting-indicator');
 
       // If there is a pref, track its controlledBy and recommendedValue
       // properties in order to be able to bring up the correct bubble.
       if (this.pref) {
         Preferences.getInstance().addEventListener(
             this.pref, this.handlePrefChange.bind(this));
         this.resetHandler = this.clearAssociatedPref_;
       }
-
-      this.className = 'controlled-setting-indicator';
-      this.location = cr.ui.ArrowLocation.TOP_END;
-      this.image = document.createElement('div');
-      this.image.tabIndex = 0;
-      this.image.setAttribute('role', 'button');
-      this.image.addEventListener('click', this);
-      this.image.addEventListener('keydown', this);
-      this.image.addEventListener('mousedown', this);
-      this.appendChild(this.image);
     },
 
     /**
      * The given handler will be called when the user clicks on the 'reset to
      * recommended value' link shown in the indicator bubble. The |this| object
      * will be the indicator itself.
      * @param {function()} handler The handler to be called.
      */
     set resetHandler(handler) {
       this.resetHandler_ = handler;
     },
 
     /**
-     * Whether the indicator is currently showing a bubble.
-     * @type {boolean}
-     */
-    get showingBubble() {
-      return this.image.classList.contains('showing-bubble');
-    },
-    set showingBubble(showing) {
-      this.image.classList.toggle('showing-bubble', showing);
-    },
-
-    /**
      * Clears the preference associated with this indicator.
      * @private
      */
     clearAssociatedPref_: function() {
       Preferences.clearPref(this.pref, !this.dialogPref);
     },
 
     /* Handle changes to the associated pref by hiding any currently visible
      * bubble and updating the controlledBy property.
      * @param {Event} event Pref change event.
      */
     handlePrefChange: function(event) {
       OptionsPage.hideBubble();
       if (event.value.controlledBy) {
         this.controlledBy =
             !this.value || String(event.value.value) == this.value ?
             event.value.controlledBy : null;
       } else if (event.value.recommendedValue != undefined) {
         this.controlledBy =
             !this.value || String(event.value.recommendedValue) == this.value ?
             'hasRecommendation' : null;
       } else {
         this.controlledBy = null;
       }
     },
 
     /**
-     * Handle mouse and keyboard events, allowing the user to open and close a
-     * bubble with further information.
-     * @param {Event} event Mouse or keyboard event.
-     */
-    handleEvent: function(event) {
-      switch (event.type) {
-        // Toggle the bubble on left click. Let any other clicks propagate.
-        case 'click':
-          if (event.button != 0)
-            return;
-          break;
-        // Toggle the bubble when <Return> or <Space> is pressed. Let any other
-        // key presses propagate.
-        case 'keydown':
-          switch (event.keyCode) {
-            case 13:  // Return.
-            case 32:  // Space.
-              break;
-            default:
-              return;
-          }
-          break;
-        // Blur focus when a mouse button is pressed, matching the behavior of
-        // other Web UI elements.
-        case 'mousedown':
-          if (document.activeElement)
-            document.activeElement.blur();
-          event.preventDefault();
-          return;
-      }
-      this.toggleBubble_();
-      event.preventDefault();
-      event.stopPropagation();
-    },
-
-    /**
      * Open or close a bubble with further information about the pref.
      * @private
      */
     toggleBubble_: function() {
       if (this.showingBubble) {
         OptionsPage.hideBubble();
       } else {
         var self = this;
 
         // Construct the bubble text.
@@ skipping 89 matching lines @@
    * @type {string}
    */
   cr.defineProperty(ControlledSettingIndicator, 'controlledBy',
                     cr.PropertyKind.ATTR);
 
   // Export.
   return {
     ControlledSettingIndicator: ControlledSettingIndicator
   };
 });