Upstream version 7.36.149.0
[platform/framework/web/crosswalk.git] / src / third_party / WebKit / Source / core / inspector / WorkerRuntimeAgent.cpp
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 #include "config.h"
32
33 #include "core/inspector/WorkerRuntimeAgent.h"
34
35 #include "bindings/v8/ScriptState.h"
36 #include "core/inspector/InjectedScript.h"
37 #include "core/inspector/InstrumentingAgents.h"
38 #include "core/inspector/WorkerDebuggerAgent.h"
39 #include "core/workers/WorkerGlobalScope.h"
40 #include "core/workers/WorkerRunLoop.h"
41 #include "core/workers/WorkerThread.h"
42
43 namespace WebCore {
44
45 WorkerRuntimeAgent::WorkerRuntimeAgent(InjectedScriptManager* injectedScriptManager, ScriptDebugServer* scriptDebugServer, WorkerGlobalScope* workerGlobalScope)
46     : InspectorRuntimeAgent(injectedScriptManager, scriptDebugServer)
47     , m_workerGlobalScope(workerGlobalScope)
48     , m_paused(false)
49 {
50 }
51
52 WorkerRuntimeAgent::~WorkerRuntimeAgent()
53 {
54     m_instrumentingAgents->setWorkerRuntimeAgent(0);
55 }
56
57 void WorkerRuntimeAgent::init()
58 {
59     m_instrumentingAgents->setWorkerRuntimeAgent(this);
60 }
61
62 void WorkerRuntimeAgent::enable(ErrorString* errorString)
63 {
64     if (m_enabled)
65         return;
66
67     InspectorRuntimeAgent::enable(errorString);
68     addExecutionContextToFrontend(m_workerGlobalScope->script()->scriptState(), true, m_workerGlobalScope->url(), "");
69 }
70
71 InjectedScript WorkerRuntimeAgent::injectedScriptForEval(ErrorString* error, const int* executionContextId)
72 {
73     if (!executionContextId)
74         return injectedScriptManager()->injectedScriptFor(m_workerGlobalScope->script()->scriptState());
75
76     InjectedScript injectedScript = injectedScriptManager()->injectedScriptForId(*executionContextId);
77     if (injectedScript.isEmpty())
78         *error = "Execution context with given id not found.";
79     return injectedScript;
80 }
81
82 void WorkerRuntimeAgent::muteConsole()
83 {
84     // We don't need to mute console for workers.
85 }
86
87 void WorkerRuntimeAgent::unmuteConsole()
88 {
89     // We don't need to mute console for workers.
90 }
91
92 void WorkerRuntimeAgent::run(ErrorString*)
93 {
94     m_paused = false;
95 }
96
97 void WorkerRuntimeAgent::willEvaluateWorkerScript(WorkerGlobalScope* context, int workerThreadStartMode)
98 {
99     if (workerThreadStartMode != PauseWorkerGlobalScopeOnStart)
100         return;
101
102     m_paused = true;
103     MessageQueueWaitResult result;
104     do {
105         result = context->thread()->runLoop().runDebuggerTask();
106     // Keep waiting until execution is resumed.
107     } while (result == MessageQueueMessageReceived && m_paused);
108 }
109
110 } // namespace WebCore