code.vuplus.com Git - vuplus_webkit/blob - Source/WebCore/inspector/front-end/TimelineManager.js

   1 /*
   2  * Copyright (C) 2011 Google Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  *     * Redistributions of source code must retain the above copyright
   9  * notice, this list of conditions and the following disclaimer.
  10  *     * Redistributions in binary form must reproduce the above
  11  * copyright notice, this list of conditions and the following disclaimer
  12  * in the documentation and/or other materials provided with the
  13  * distribution.
  14  *     * Neither the name of Google Inc. nor the names of its
  15  * contributors may be used to endorse or promote products derived from
  16  * this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 /**
  32  * @constructor
  33  * @extends {WebInspector.Object}
  34  */
  35 WebInspector.TimelineManager = function()
  36 {
  37     WebInspector.Object.call(this);
  38     this._dispatcher = new WebInspector.TimelineDispatcher(this);
  39     this._enablementCount = 0;
  40 }
  41
  42 WebInspector.TimelineManager.EventTypes = {
  43     TimelineStarted: "TimelineStarted",
  44     TimelineStopped: "TimelineStopped",
  45     TimelineEventRecorded: "TimelineEventRecorded"
  46 }
  47
  48 WebInspector.TimelineManager.prototype = {
  49     start: function(maxCallStackDepth)
  50     {
  51         this._enablementCount++;
  52         if (this._enablementCount === 1)
  53             TimelineAgent.start(maxCallStackDepth);
  54     },
  55
  56     stop: function()
  57     {
  58         if (!this._enablementCount) {
  59             console.error("WebInspector.TimelineManager start/stop calls are unbalanced");
  60             return;
  61         }
  62         this._enablementCount--;
  63         if (!this._enablementCount)
  64             TimelineAgent.stop();
  65     }
  66 }
  67
  68 WebInspector.TimelineManager.prototype.__proto__ = WebInspector.Object.prototype;
  69
  70 /**
  71  * @constructor
  72  * @implements {TimelineAgent.Dispatcher}
  73  */
  74 WebInspector.TimelineDispatcher = function(manager)
  75 {
  76     this._manager = manager;
  77     InspectorBackend.registerTimelineDispatcher(this);
  78 }
  79
  80 WebInspector.TimelineDispatcher.prototype = {
  81     started: function()
  82     {
  83         this._manager.dispatchEventToListeners(WebInspector.TimelineManager.EventTypes.TimelineStarted);
  84     },
  85
  86     stopped: function()
  87     {
  88         this._manager.dispatchEventToListeners(WebInspector.TimelineManager.EventTypes.TimelineStopped);
  89     },
  90
  91     eventRecorded: function(record)
  92     {
  93         this._manager.dispatchEventToListeners(WebInspector.TimelineManager.EventTypes.TimelineEventRecorded, record);
  94     }
  95 }
  96
  97 WebInspector.timelineManager = new WebInspector.TimelineManager();