| /* |
| * 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 WorkerContext_h |
| #define WorkerContext_h |
| |
| #if ENABLE(WORKERS) |
| |
| #include "EventListener.h" |
| #include "EventNames.h" |
| #include "EventTarget.h" |
| #include "ScriptExecutionContext.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 DOMFileSystemSync; |
| class DOMURL; |
| class Database; |
| class DatabaseCallback; |
| class DatabaseSync; |
| class EntryCallback; |
| class EntrySync; |
| class ErrorCallback; |
| class FileSystemCallback; |
| class NotificationCenter; |
| class ScheduledAction; |
| class WorkerInspectorController; |
| class WorkerLocation; |
| class WorkerNavigator; |
| class WorkerThread; |
| |
| class WorkerContext : public RefCounted<WorkerContext>, public ScriptExecutionContext, public EventTarget { |
| public: |
| virtual ~WorkerContext(); |
| |
| virtual bool isWorkerContext() const { return true; } |
| |
| virtual ScriptExecutionContext* scriptExecutionContext() const; |
| |
| virtual bool isSharedWorkerContext() const { return false; } |
| virtual bool isDedicatedWorkerContext() const { return false; } |
| |
| const KURL& url() const { return m_url; } |
| KURL completeURL(const String&) const; |
| |
| virtual String userAgent(const KURL&) const; |
| |
| WorkerScriptController* script() { return m_script.get(); } |
| void clearScript() { m_script.clear(); } |
| |
| WorkerThread* thread() const { return m_thread; } |
| |
| bool hasPendingActivity() const; |
| |
| virtual void postTask(PassOwnPtr<Task>); // Executes the task on context's thread asynchronously. |
| |
| // WorkerGlobalScope |
| WorkerContext* self() { return this; } |
| WorkerLocation* location() const; |
| void close(); |
| |
| DEFINE_ATTRIBUTE_EVENT_LISTENER(error); |
| |
| // 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 void addMessage(MessageSource, MessageType, MessageLevel, const String& message, unsigned lineNumber, const String& sourceURL, PassRefPtr<ScriptCallStack>); |
| |
| #if ENABLE(NOTIFICATIONS) |
| NotificationCenter* webkitNotifications() const; |
| #endif |
| |
| #if ENABLE(DATABASE) |
| // HTML 5 client-side database |
| PassRefPtr<Database> openDatabase(const String& name, const String& version, const String& displayName, unsigned long estimatedSize, PassRefPtr<DatabaseCallback> creationCallback, ExceptionCode&); |
| PassRefPtr<DatabaseSync> openDatabaseSync(const String& name, const String& version, const String& displayName, unsigned long estimatedSize, PassRefPtr<DatabaseCallback> creationCallback, ExceptionCode&); |
| |
| // Not implemented yet. |
| virtual bool allowDatabaseAccess() const { return true; } |
| // Not implemented for real yet. |
| virtual void databaseExceededQuota(const String&); |
| #endif |
| virtual bool isContextThread() const; |
| virtual bool isJSExecutionForbidden() const; |
| |
| #if ENABLE(BLOB) |
| DOMURL* webkitURL() const; |
| #endif |
| |
| #if ENABLE(FILE_SYSTEM) |
| enum FileSystemType { |
| TEMPORARY, |
| PERSISTENT, |
| EXTERNAL, |
| }; |
| void webkitRequestFileSystem(int type, long long size, PassRefPtr<FileSystemCallback> successCallback, PassRefPtr<ErrorCallback>); |
| PassRefPtr<DOMFileSystemSync> webkitRequestFileSystemSync(int type, long long size, ExceptionCode&); |
| void webkitResolveLocalFileSystemURL(const String& url, PassRefPtr<EntryCallback> successCallback, PassRefPtr<ErrorCallback>); |
| PassRefPtr<EntrySync> webkitResolveLocalFileSystemSyncURL(const String& url, ExceptionCode&); |
| #endif |
| #if ENABLE(INSPECTOR) |
| WorkerInspectorController* workerInspectorController() { return m_workerInspectorController.get(); } |
| #endif |
| // These methods are used for GC marking. See JSWorkerContext::markChildren(MarkStack&) in |
| // JSWorkerContextCustom.cpp. |
| WorkerNavigator* optionalNavigator() const { return m_navigator.get(); } |
| WorkerLocation* optionalLocation() const { return m_location.get(); } |
| |
| using RefCounted<WorkerContext>::ref; |
| using RefCounted<WorkerContext>::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(WorkerContext*); |
| virtual ~Observer(); |
| virtual void notifyStop() = 0; |
| void stopObserving(); |
| private: |
| WorkerContext* m_context; |
| }; |
| friend class Observer; |
| void registerObserver(Observer*); |
| void unregisterObserver(Observer*); |
| void notifyObserversOfStop(); |
| |
| protected: |
| WorkerContext(const KURL&, const String&, WorkerThread*); |
| |
| private: |
| virtual void refScriptExecutionContext() { ref(); } |
| virtual void derefScriptExecutionContext() { deref(); } |
| |
| virtual void refEventTarget() { ref(); } |
| virtual void derefEventTarget() { deref(); } |
| virtual EventTargetData* eventTargetData(); |
| virtual EventTargetData* ensureEventTargetData(); |
| |
| virtual const KURL& virtualURL() const; |
| virtual KURL virtualCompleteURL(const String&) const; |
| |
| virtual EventTarget* errorEventTarget(); |
| virtual void logExceptionToConsole(const String& errorMessage, int lineNumber, const String& sourceURL, PassRefPtr<ScriptCallStack>); |
| |
| KURL m_url; |
| String m_userAgent; |
| |
| mutable RefPtr<WorkerLocation> m_location; |
| mutable RefPtr<WorkerNavigator> m_navigator; |
| |
| OwnPtr<WorkerScriptController> m_script; |
| WorkerThread* m_thread; |
| |
| #if ENABLE_NOTIFICATIONS |
| mutable RefPtr<NotificationCenter> m_notifications; |
| #endif |
| #if ENABLE(BLOB) |
| mutable RefPtr<DOMURL> m_domURL; |
| #endif |
| #if ENABLE(INSPECTOR) |
| OwnPtr<WorkerInspectorController> m_workerInspectorController; |
| #endif |
| bool m_closing; |
| EventTargetData m_eventTargetData; |
| |
| HashSet<Observer*> m_workerObservers; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(WORKERS) |
| |
| #endif // WorkerContext_h |