Source/WebCore/inspector/WorkerRuntimeAgent.cpp

/*
 * Copyright (C) 2011 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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#include "config.h"
#include "WorkerRuntimeAgent.h"

#if ENABLE(INSPECTOR)

#include "InstrumentingAgents.h"
#include "JSDOMWindowBase.h"
#include "ScriptState.h"
#include "WorkerDebuggerAgent.h"
#include "WorkerGlobalScope.h"
#include "WorkerRunLoop.h"
#include "WorkerThread.h"
#include <inspector/InjectedScript.h>
#include <inspector/InjectedScriptManager.h>

using namespace Inspector;

namespace WebCore {

WorkerRuntimeAgent::WorkerRuntimeAgent(InjectedScriptManager* injectedScriptManager, WorkerGlobalScope* workerGlobalScope)
    : InspectorRuntimeAgent(injectedScriptManager)
    , m_workerGlobalScope(workerGlobalScope)
    , m_paused(false)
{
}

void WorkerRuntimeAgent::didCreateFrontendAndBackend(Inspector::InspectorFrontendChannel*, InspectorBackendDispatcher* backendDispatcher)
{
    m_backendDispatcher = InspectorRuntimeBackendDispatcher::create(backendDispatcher, this);
}

void WorkerRuntimeAgent::willDestroyFrontendAndBackend(InspectorDisconnectReason reason)
{
    m_backendDispatcher.clear();

    InspectorRuntimeAgent::willDestroyFrontendAndBackend(reason);
}

InjectedScript WorkerRuntimeAgent::injectedScriptForEval(ErrorString& error, const int* executionContextId)
{
    if (executionContextId) {
        error = ASCIILiteral("Execution context id is not supported for workers as there is only one execution context.");
        return InjectedScript();
    }

    JSC::ExecState* scriptState = execStateFromWorkerGlobalScope(m_workerGlobalScope);
    return injectedScriptManager()->injectedScriptFor(scriptState);
}

void WorkerRuntimeAgent::muteConsole()
{
    // We don't need to mute console for workers.
}

void WorkerRuntimeAgent::unmuteConsole()
{
    // We don't need to mute console for workers.
}

void WorkerRuntimeAgent::run(ErrorString&)
{
    m_paused = false;
}

JSC::VM& WorkerRuntimeAgent::globalVM()
{
    return JSDOMWindowBase::commonVM();
}

void WorkerRuntimeAgent::pauseWorkerGlobalScope(WorkerGlobalScope* context)
{
    m_paused = true;
    MessageQueueWaitResult result;
    do {
        result = context->thread().runLoop().runInMode(context, WorkerDebuggerAgent::debuggerTaskMode);
    // Keep waiting until execution is resumed.
    } while (result == MessageQueueMessageReceived && m_paused);
}

} // namespace WebCore

#endif // ENABLE(INSPECTOR)