src/third_party/WebKit/Source/devtools/front_end/InspectorFrontendEventSink.js

   1 /*
   2  * Copyright 2014 The Chromium Authors. All rights reserved.
   3  * Use of this source code is governed by a BSD-style license that can be
   4  * found in the LICENSE file.
   5  */
   6
   7
   8 /**
   9  * @constructor
  10  * @extends {WebInspector.Object}
  11  */
  12 WebInspector.InspectorFrontendEventSink = function() {
  13 }
  14
  15 WebInspector.InspectorFrontendEventSink.prototype = {
  16     /**
  17      * @param {string} eventType
  18      * @param {function(!WebInspector.Event)} listener
  19      * @param {!Object=} thisObject
  20      */
  21     addEventListener: function(eventType, listener, thisObject)
  22     {
  23         if (!this.hasEventListeners(eventType))
  24             InspectorFrontendHost.subscribe(eventType);
  25
  26         WebInspector.Object.prototype.addEventListener.call(this, eventType, listener, thisObject);
  27     },
  28
  29     /**
  30      * @param {string} eventType
  31      * @param {function(!WebInspector.Event)} listener
  32      * @param {!Object=} thisObject
  33      */
  34     removeEventListener: function(eventType, listener, thisObject)
  35     {
  36         WebInspector.Object.prototype.removeEventListener.call(this, eventType, listener, thisObject);
  37
  38         if (!this.hasEventListeners(eventType))
  39             InspectorFrontendHost.unsubscribe(eventType);
  40     },
  41
  42     __proto__: WebInspector.Object.prototype
  43 };