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 TimelineStartEvent: "TimelineStartEvent", 46 TimelineEventRecorded: "TimelineEventRecorded" 47 } 48 49 WebInspector.TimelineManager.prototype = { 50 /** 51 * @param {number=} maxCallStackDepth 52 * @param {boolean=} includeDomCounters 53 * @param {boolean=} includeNativeMemoryStatistics 54 */ 55 start: function(maxCallStackDepth, includeDomCounters, includeNativeMemoryStatistics) 56 { 57 this._enablementCount++; 58 if (this._enablementCount === 1) 59 TimelineAgent.start(maxCallStackDepth, includeDomCounters, includeNativeMemoryStatistics, this._started.bind(this)); 60 }, 61 62 stop: function() 63 { 64 if (!this._enablementCount) { 65 console.error("WebInspector.TimelineManager start/stop calls are unbalanced"); 66 return; 67 } 68 this._enablementCount--; 69 if (!this._enablementCount) 70 TimelineAgent.stop(this._stopped.bind(this)); 71 }, 72 73 _started: function() 74 { 75 this.dispatchEventToListeners(WebInspector.TimelineManager.EventTypes.TimelineStarted); 76 }, 77 78 _stopped: function() 79 { 80 this.dispatchEventToListeners(WebInspector.TimelineManager.EventTypes.TimelineStopped); 81 }, 82 83 __proto__: WebInspector.Object.prototype 84 } 85 86 /** 87 * @constructor 88 * @implements {TimelineAgent.Dispatcher} 89 */ 90 WebInspector.TimelineDispatcher = function(manager) 91 { 92 this._manager = manager; 93 InspectorBackend.registerTimelineDispatcher(this); 94 } 95 96 WebInspector.TimelineDispatcher.prototype = { 97 timelineStarted: function(timestampsBase, startTime) 98 { 99 var event = { 100 timestampsBase: timestampsBase, 101 startTime: startTime 102 }; 103 this._manager.dispatchEventToListeners(WebInspector.TimelineManager.EventTypes.TimelineStartEvent, event); 104 }, 105 106 eventRecorded: function(record) 107 { 108 this._manager.dispatchEventToListeners(WebInspector.TimelineManager.EventTypes.TimelineEventRecorded, record); 109 } 110 } 111 112 /** 113 * @type {WebInspector.TimelineManager} 114 */ 115 WebInspector.timelineManager; 116