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 * @param {!WebInspector.Target} target
35 * @param {boolean} isMainFrontend
36 */
37WebInspector.WorkerManager = function(target, isMainFrontend)
38{
39    this._reset();
40    target.registerWorkerDispatcher(new WebInspector.WorkerDispatcher(this));
41    if (isMainFrontend) {
42        target.workerAgent().enable();
43        target.resourceTreeModel.addEventListener(WebInspector.ResourceTreeModel.EventTypes.MainFrameNavigated, this._mainFrameNavigated, this);
44    }
45}
46
47WebInspector.WorkerManager.Events = {
48    WorkerAdded: "WorkerAdded",
49    WorkerRemoved: "WorkerRemoved",
50    WorkersCleared: "WorkersCleared",
51    WorkerSelectionChanged: "WorkerSelectionChanged",
52    WorkerDisconnected: "WorkerDisconnected",
53    MessageFromWorker: "MessageFromWorker",
54}
55
56WebInspector.WorkerManager.MainThreadId = 0;
57
58WebInspector.WorkerManager.prototype = {
59
60    _reset: function()
61    {
62        /** @type {!Object.<number, string>} */
63        this._threadUrlByThreadId = {};
64        this._threadUrlByThreadId[WebInspector.WorkerManager.MainThreadId] = WebInspector.UIString("Thread: Main");
65        this._threadsList = [WebInspector.WorkerManager.MainThreadId];
66        this._selectedThreadId = WebInspector.WorkerManager.MainThreadId;
67    },
68
69    _workerCreated: function(workerId, url, inspectorConnected)
70    {
71        this._threadsList.push(workerId);
72        this._threadUrlByThreadId[workerId] = url;
73        this.dispatchEventToListeners(WebInspector.WorkerManager.Events.WorkerAdded, {workerId: workerId, url: url, inspectorConnected: inspectorConnected});
74     },
75
76    _workerTerminated: function(workerId)
77    {
78        this._threadsList.remove(workerId);
79        delete this._threadUrlByThreadId[workerId];
80        this.dispatchEventToListeners(WebInspector.WorkerManager.Events.WorkerRemoved, workerId);
81    },
82
83    _dispatchMessageFromWorker: function(workerId, message)
84    {
85        this.dispatchEventToListeners(WebInspector.WorkerManager.Events.MessageFromWorker, {workerId: workerId, message: message})
86    },
87
88    _disconnectedFromWorker: function()
89    {
90        this.dispatchEventToListeners(WebInspector.WorkerManager.Events.WorkerDisconnected)
91    },
92
93    _mainFrameNavigated: function(event)
94    {
95        this._reset();
96        this.dispatchEventToListeners(WebInspector.WorkerManager.Events.WorkersCleared);
97    },
98
99    /**
100     * @return {!Array.<number>}
101     */
102    threadsList: function()
103    {
104        return this._threadsList;
105    },
106
107    /**
108     * @param {number} threadId
109     * @return {string}
110     */
111    threadUrl: function(threadId)
112    {
113        return this._threadUrlByThreadId[threadId];
114    },
115
116    /**
117     * @param {number} threadId
118     */
119    setSelectedThreadId: function(threadId)
120    {
121        this._selectedThreadId = threadId;
122    },
123
124    /**
125     * @return {number}
126     */
127    selectedThreadId: function()
128    {
129        return this._selectedThreadId;
130    },
131
132    __proto__: WebInspector.Object.prototype
133}
134
135/**
136 * @constructor
137 * @implements {WorkerAgent.Dispatcher}
138 */
139WebInspector.WorkerDispatcher = function(workerManager)
140{
141    this._workerManager = workerManager;
142}
143
144WebInspector.WorkerDispatcher.prototype = {
145
146    workerCreated: function(workerId, url, inspectorConnected)
147    {
148        this._workerManager._workerCreated(workerId, url, inspectorConnected);
149    },
150
151    workerTerminated: function(workerId)
152    {
153        this._workerManager._workerTerminated(workerId);
154    },
155
156    dispatchMessageFromWorker: function(workerId, message)
157    {
158        this._workerManager._dispatchMessageFromWorker(workerId, message);
159    },
160
161    disconnectedFromWorker: function()
162    {
163        this._workerManager._disconnectedFromWorker();
164    }
165}
166
167/**
168 * @type {!WebInspector.WorkerManager}
169 */
170WebInspector.workerManager;
171
172/**
173 * @constructor
174 * @extends {InspectorBackendClass.Connection}
175 * @param {string} workerId
176 */
177WebInspector.ExternalWorkerConnection = function(workerId)
178{
179    InspectorBackendClass.Connection.call(this);
180    this._workerId = workerId;
181    window.addEventListener("message", this._processMessage.bind(this), true);
182}
183
184WebInspector.ExternalWorkerConnection.prototype = {
185
186    /**
187     * @param {!Event} event
188     */
189    _processMessage: function(event)
190    {
191        if (!event)
192            return;
193
194        var message = event.data;
195        this.dispatch(message);
196    },
197
198    /**
199     * @param {!Object} messageObject
200     */
201    sendMessage: function(messageObject)
202    {
203        window.opener.postMessage({workerId: this._workerId, command: "sendMessageToBackend", message: messageObject}, "*");
204    },
205
206    __proto__: InspectorBackendClass.Connection.prototype
207}
208