2 * Copyright (C) 2008, 2010 Apple Inc. All Rights Reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
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11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 #include "core/dom/ActiveDOMObject.h"
31 #include "core/dom/MessagePort.h"
32 #include "core/events/EventListener.h"
33 #include "core/events/EventTarget.h"
34 #include "core/workers/AbstractWorker.h"
35 #include "core/workers/WorkerScriptLoaderClient.h"
36 #include "platform/heap/Handle.h"
37 #include "wtf/Forward.h"
38 #include "wtf/PassRefPtr.h"
39 #include "wtf/RefPtr.h"
40 #include "wtf/text/AtomicStringHash.h"
45 class ExecutionContext;
46 class WorkerGlobalScopeProxy;
47 class WorkerScriptLoader;
49 class Worker FINAL : public AbstractWorker, private WorkerScriptLoaderClient {
51 static PassRefPtrWillBeRawPtr<Worker> create(ExecutionContext*, const String& url, ExceptionState&);
54 virtual const AtomicString& interfaceName() const OVERRIDE;
56 void postMessage(ExecutionContext*, PassRefPtr<SerializedScriptValue> message, const MessagePortArray*, ExceptionState&);
60 virtual void stop() OVERRIDE;
61 virtual bool hasPendingActivity() const OVERRIDE;
63 DEFINE_ATTRIBUTE_EVENT_LISTENER(message);
65 virtual void trace(Visitor*) OVERRIDE;
68 explicit Worker(ExecutionContext*);
70 // WorkerScriptLoaderClient callbacks
71 virtual void didReceiveResponse(unsigned long identifier, const ResourceResponse&) OVERRIDE;
72 virtual void notifyFinished() OVERRIDE;
74 RefPtr<WorkerScriptLoader> m_scriptLoader;
75 WorkerGlobalScopeProxy* m_contextProxy; // The proxy outlives the worker to perform thread shutdown.