src/third_party/WebKit/Source/devtools/front_end/sdk/PowerProfiler.js

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 /**
   6  * @constructor
   7  * @extends {WebInspector.Object}
   8  * @param {!WebInspector.Target} target
   9  */
  10 WebInspector.PowerProfiler = function(target)
  11 {
  12     WebInspector.Object.call(this);
  13     this._dispatcher = new WebInspector.PowerDispatcher(this);
  14     this._target = target;
  15     target.registerPowerDispatcher(this._dispatcher);
  16     target.powerAgent().getAccuracyLevel(this._onAccuracyLevel.bind(this));
  17 }
  18
  19 WebInspector.PowerProfiler.EventTypes = {
  20     PowerEventRecorded: "PowerEventRecorded"
  21 }
  22
  23 WebInspector.PowerProfiler.prototype = {
  24     startProfile: function ()
  25     {
  26         this._target.powerAgent().start();
  27     },
  28
  29     stopProfile: function ()
  30     {
  31         this._target.powerAgent().end();
  32     },
  33
  34     /**
  35      * @return {string}
  36      */
  37     getAccuracyLevel: function()
  38     {
  39         return this._accuracyLevel;
  40     },
  41
  42     _onAccuracyLevel: function(error, result) {
  43         this._accuracyLevel = "";
  44         if (error) {
  45             console.log("Unable to retrieve PowerProfiler accuracy level: " + error);
  46             return;
  47         }
  48         this._accuracyLevel = result;
  49     },
  50
  51     __proto__: WebInspector.Object.prototype
  52 }
  53
  54 /**
  55  * @constructor
  56  * @implements {PowerAgent.Dispatcher}
  57  */
  58 WebInspector.PowerDispatcher = function(profiler)
  59 {
  60     this._profiler = profiler;
  61 }
  62
  63 WebInspector.PowerDispatcher.prototype = {
  64     dataAvailable: function(events)
  65     {
  66         for (var i = 0; i < events.length; ++i)
  67             this._profiler.dispatchEventToListeners(WebInspector.PowerProfiler.EventTypes.PowerEventRecorded, events[i]);
  68     }
  69 }
  70
  71 /**
  72  * @type {!WebInspector.PowerProfiler}
  73  */
  74 WebInspector.powerProfiler;