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/*
* Copyright (C) 2008, 2010 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef Worker_h
#define Worker_h
#if ENABLE(WORKERS)
#include "AbstractWorker.h"
#include "ActiveDOMObject.h"
#include "EventListener.h"
#include "EventNames.h"
#include "EventTarget.h"
#include "MessagePort.h"
#include "WorkerScriptLoaderClient.h"
#include <wtf/Forward.h>
#include <wtf/PassRefPtr.h>
#include <wtf/RefPtr.h>
#include <wtf/text/AtomicStringHash.h>
namespace WebCore {
class ScriptExecutionContext;
class WorkerGlobalScopeProxy;
class WorkerScriptLoader;
typedef int ExceptionCode;
class Worker : public AbstractWorker, private WorkerScriptLoaderClient {
public:
static PassRefPtr<Worker> create(ScriptExecutionContext*, const String& url, ExceptionCode&);
virtual ~Worker();
virtual const AtomicString& interfaceName() const OVERRIDE;
void postMessage(PassRefPtr<SerializedScriptValue> message, const MessagePortArray*, ExceptionCode&);
// Needed for Objective-C bindings (see bug 28774).
void postMessage(PassRefPtr<SerializedScriptValue> message, MessagePort*, ExceptionCode&);
void terminate();
virtual bool canSuspend() const OVERRIDE;
virtual void stop() OVERRIDE;
virtual bool hasPendingActivity() const OVERRIDE;
DEFINE_ATTRIBUTE_EVENT_LISTENER(message);
private:
explicit Worker(ScriptExecutionContext*);
void notifyNetworkStateChange(bool isOnline);
// WorkerScriptLoaderClient callbacks
virtual void didReceiveResponse(unsigned long identifier, const ResourceResponse&) OVERRIDE;
virtual void notifyFinished() OVERRIDE;
virtual void refEventTarget() OVERRIDE { ref(); }
virtual void derefEventTarget() OVERRIDE { deref(); }
friend void networkStateChanged(bool isOnLine);
RefPtr<WorkerScriptLoader> m_scriptLoader;
WorkerGlobalScopeProxy* m_contextProxy; // The proxy outlives the worker to perform thread shutdown.
};
} // namespace WebCore
#endif // ENABLE(WORKERS)
#endif // Worker_h
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