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/*
* Copyright (C) 2008, 2009 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 WorkerGlobalScope_h
#define WorkerGlobalScope_h
#if ENABLE(WORKERS)
#include "ContentSecurityPolicy.h"
#include "EventListener.h"
#include "EventNames.h"
#include "EventTarget.h"
#include "GroupSettings.h"
#include "ScriptExecutionContext.h"
#include "WorkerEventQueue.h"
#include "WorkerScriptController.h"
#include <wtf/Assertions.h>
#include <wtf/HashMap.h>
#include <wtf/OwnPtr.h>
#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>
#include <wtf/text/AtomicStringHash.h>
namespace WebCore {
class Blob;
class ScheduledAction;
class WorkerInspectorController;
class WorkerLocation;
class WorkerNavigator;
class WorkerThread;
class WorkerGlobalScope : public RefCounted<WorkerGlobalScope>, public ScriptExecutionContext, public EventTarget {
public:
virtual ~WorkerGlobalScope();
virtual bool isWorkerGlobalScope() const OVERRIDE { return true; }
virtual ScriptExecutionContext* scriptExecutionContext() const OVERRIDE;
virtual bool isSharedWorkerGlobalScope() const { return false; }
virtual bool isDedicatedWorkerGlobalScope() const { return false; }
const KURL& url() const { return m_url; }
KURL completeURL(const String&) const;
const GroupSettings* groupSettings() { return m_groupSettings.get(); }
virtual String userAgent(const KURL&) const;
virtual void disableEval(const String& errorMessage) OVERRIDE;
WorkerScriptController* script() { return m_script.get(); }
void clearScript() { m_script.clear(); }
#if ENABLE(INSPECTOR)
void clearInspector();
#endif
WorkerThread* thread() const { return m_thread; }
bool hasPendingActivity() const;
virtual void postTask(PassOwnPtr<Task>) OVERRIDE; // Executes the task on context's thread asynchronously.
// WorkerGlobalScope
WorkerGlobalScope* self() { return this; }
WorkerLocation* location() const;
void close();
DEFINE_ATTRIBUTE_EVENT_LISTENER(error);
DEFINE_ATTRIBUTE_EVENT_LISTENER(offline);
DEFINE_ATTRIBUTE_EVENT_LISTENER(online);
// WorkerUtils
virtual void importScripts(const Vector<String>& urls, ExceptionCode&);
WorkerNavigator* navigator() const;
// Timers
int setTimeout(PassOwnPtr<ScheduledAction>, int timeout);
void clearTimeout(int timeoutId);
int setInterval(PassOwnPtr<ScheduledAction>, int timeout);
void clearInterval(int timeoutId);
// ScriptExecutionContext
virtual WorkerEventQueue* eventQueue() const OVERRIDE;
virtual bool isContextThread() const OVERRIDE;
virtual bool isJSExecutionForbidden() const OVERRIDE;
#if ENABLE(INSPECTOR)
WorkerInspectorController* workerInspectorController() { return m_workerInspectorController.get(); }
#endif
// These methods are used for GC marking. See JSWorkerGlobalScope::visitChildrenVirtual(SlotVisitor&) in
// JSWorkerGlobalScopeCustom.cpp.
WorkerNavigator* optionalNavigator() const { return m_navigator.get(); }
WorkerLocation* optionalLocation() const { return m_location.get(); }
using RefCounted<WorkerGlobalScope>::ref;
using RefCounted<WorkerGlobalScope>::deref;
bool isClosing() { return m_closing; }
// An observer interface to be notified when the worker thread is getting stopped.
class Observer {
WTF_MAKE_NONCOPYABLE(Observer);
public:
Observer(WorkerGlobalScope*);
virtual ~Observer();
virtual void notifyStop() = 0;
void stopObserving();
private:
WorkerGlobalScope* m_context;
};
friend class Observer;
void registerObserver(Observer*);
void unregisterObserver(Observer*);
void notifyObserversOfStop();
virtual SecurityOrigin* topOrigin() const OVERRIDE { return m_topOrigin.get(); }
protected:
WorkerGlobalScope(const KURL&, const String& userAgent, PassOwnPtr<GroupSettings>, WorkerThread*, PassRefPtr<SecurityOrigin> topOrigin);
void applyContentSecurityPolicyFromString(const String& contentSecurityPolicy, ContentSecurityPolicy::HeaderType);
virtual void logExceptionToConsole(const String& errorMessage, const String& sourceURL, int lineNumber, int columnNumber, PassRefPtr<ScriptCallStack>) OVERRIDE;
void addMessageToWorkerConsole(MessageSource, MessageLevel, const String& message, const String& sourceURL, unsigned lineNumber, unsigned columnNumber, PassRefPtr<ScriptCallStack>, ScriptState* = 0, unsigned long requestIdentifier = 0);
private:
virtual void refScriptExecutionContext() OVERRIDE { ref(); }
virtual void derefScriptExecutionContext() OVERRIDE { deref(); }
virtual void refEventTarget() OVERRIDE { ref(); }
virtual void derefEventTarget() OVERRIDE { deref(); }
virtual EventTargetData* eventTargetData() OVERRIDE;
virtual EventTargetData* ensureEventTargetData() OVERRIDE;
virtual const KURL& virtualURL() const OVERRIDE;
virtual KURL virtualCompleteURL(const String&) const;
virtual void addMessage(MessageSource, MessageLevel, const String& message, const String& sourceURL, unsigned lineNumber, unsigned columnNumber, PassRefPtr<ScriptCallStack>, ScriptState* = 0, unsigned long requestIdentifier = 0) OVERRIDE;
virtual void addConsoleMessage(MessageSource, MessageLevel, const String& message, unsigned long requestIdentifier = 0) OVERRIDE;
virtual EventTarget* errorEventTarget() OVERRIDE;
KURL m_url;
String m_userAgent;
OwnPtr<GroupSettings> m_groupSettings;
mutable RefPtr<WorkerLocation> m_location;
mutable RefPtr<WorkerNavigator> m_navigator;
OwnPtr<WorkerScriptController> m_script;
WorkerThread* m_thread;
#if ENABLE(INSPECTOR)
OwnPtr<WorkerInspectorController> m_workerInspectorController;
#endif
bool m_closing;
EventTargetData m_eventTargetData;
HashSet<Observer*> m_workerObservers;
OwnPtr<WorkerEventQueue> m_eventQueue;
RefPtr<SecurityOrigin> m_topOrigin;
};
} // namespace WebCore
#endif // ENABLE(WORKERS)
#endif // WorkerGlobalScope_h
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