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 */
35WebInspector.TimelineManager = function()
36{
37    WebInspector.Object.call(this);
38    this._dispatcher = new WebInspector.TimelineDispatcher(this);
39    this._enablementCount = 0;
40}
41
42WebInspector.TimelineManager.EventTypes = {
43    TimelineStarted: "TimelineStarted",
44    TimelineStopped: "TimelineStopped",
45    TimelineEventRecorded: "TimelineEventRecorded"
46}
47
48WebInspector.TimelineManager.prototype = {
49    /**
50     * @param {number=} maxCallStackDepth
51     * @param {boolean=} includeDomCounters
52     * @param {boolean=} includeNativeMemoryStatistics
53     */
54    start: function(maxCallStackDepth, includeDomCounters, includeNativeMemoryStatistics)
55    {
56        this._enablementCount++;
57        if (this._enablementCount === 1)
58            TimelineAgent.start(maxCallStackDepth, includeDomCounters, includeNativeMemoryStatistics, this._started.bind(this));
59    },
60
61    stop: function()
62    {
63        if (!this._enablementCount) {
64            console.error("WebInspector.TimelineManager start/stop calls are unbalanced");
65            return;
66        }
67        this._enablementCount--;
68        if (!this._enablementCount)
69            TimelineAgent.stop(this._stopped.bind(this));
70    },
71
72    _started: function()
73    {
74        this.dispatchEventToListeners(WebInspector.TimelineManager.EventTypes.TimelineStarted);
75    },
76
77    _stopped: function()
78    {
79        this.dispatchEventToListeners(WebInspector.TimelineManager.EventTypes.TimelineStopped);
80    },
81
82    __proto__: WebInspector.Object.prototype
83}
84
85/**
86 * @constructor
87 * @implements {TimelineAgent.Dispatcher}
88 */
89WebInspector.TimelineDispatcher = function(manager)
90{
91    this._manager = manager;
92    InspectorBackend.registerTimelineDispatcher(this);
93}
94
95WebInspector.TimelineDispatcher.prototype = {
96    eventRecorded: function(record)
97    {
98        this._manager.dispatchEventToListeners(WebInspector.TimelineManager.EventTypes.TimelineEventRecorded, record);
99    }
100}
101
102/**
103 * @type {WebInspector.TimelineManager}
104 */
105WebInspector.timelineManager;
106