Home | History | Annotate | Download | only in inspector 
      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::isRunRequired(ErrorString*, bool* out_result)
     98 {
     99     *out_result = m_paused;
    100 }
    101 
    102 void WorkerRuntimeAgent::willEvaluateWorkerScript(WorkerGlobalScope* context, int workerThreadStartMode)
    103 {
    104     if (workerThreadStartMode != PauseWorkerGlobalScopeOnStart)
    105         return;
    106 
    107     m_paused = true;
    108     MessageQueueWaitResult result;
    109     do {
    110         result = context->thread()->runLoop().runDebuggerTask();
    111     // Keep waiting until execution is resumed.
    112     } while (result == MessageQueueMessageReceived && m_paused);
    113 }
    114 
    115 } // namespace WebCore
    116