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
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16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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32 #include "AbstractWorker.h"
33 #include "ActiveDOMObject.h"
34 #include "EventListener.h"
35 #include "EventNames.h"
36 #include "EventTarget.h"
37 #include "MessagePort.h"
38 #include "WorkerScriptLoaderClient.h"
39 #include <wtf/Forward.h>
40 #include <wtf/PassRefPtr.h>
41 #include <wtf/RefPtr.h>
42 #include <wtf/text/AtomicStringHash.h>
46 class ScriptExecutionContext;
47 class WorkerGlobalScopeProxy;
48 class WorkerScriptLoader;
50 typedef int ExceptionCode;
52 class Worker final : public AbstractWorker, private WorkerScriptLoaderClient {
54 static PassRefPtr<Worker> create(ScriptExecutionContext&, const String& url, ExceptionCode&);
57 virtual EventTargetInterface eventTargetInterface() const override { return WorkerEventTargetInterfaceType; }
59 void postMessage(PassRefPtr<SerializedScriptValue> message, const MessagePortArray*, ExceptionCode&);
60 // Needed for Objective-C bindings (see bug 28774).
61 void postMessage(PassRefPtr<SerializedScriptValue> message, MessagePort*, ExceptionCode&);
65 virtual bool canSuspend() const override;
66 virtual void stop() override;
67 virtual bool hasPendingActivity() const override;
69 DEFINE_ATTRIBUTE_EVENT_LISTENER(message);
72 explicit Worker(ScriptExecutionContext&);
74 void notifyNetworkStateChange(bool isOnline);
76 // WorkerScriptLoaderClient callbacks
77 virtual void didReceiveResponse(unsigned long identifier, const ResourceResponse&) override;
78 virtual void notifyFinished() override;
80 friend void networkStateChanged(bool isOnLine);
82 RefPtr<WorkerScriptLoader> m_scriptLoader;
83 WorkerGlobalScopeProxy* m_contextProxy; // The proxy outlives the worker to perform thread shutdown.
86 } // namespace WebCore
88 #endif // ENABLE(WORKERS)