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31 #ifndef ScopedEventQueue_h
32 #define ScopedEventQueue_h
34 #include <wtf/Noncopyable.h>
35 #include <wtf/PassRefPtr.h>
36 #include <wtf/RefPtr.h>
37 #include <wtf/Vector.h>
41 class EventDispatchMediator;
43 class ScopedEventQueue {
44 WTF_MAKE_NONCOPYABLE(ScopedEventQueue);
49 void enqueueEventDispatchMediator(PassRefPtr<EventDispatchMediator>);
50 void dispatchAllEvents();
51 static ScopedEventQueue* instance();
53 void incrementScopingLevel();
54 void decrementScopingLevel();
58 static void initialize();
59 void dispatchEvent(PassRefPtr<EventDispatchMediator>) const;
61 Vector<RefPtr<EventDispatchMediator> > m_queuedEventDispatchMediators;
62 unsigned m_scopingLevel;
64 static ScopedEventQueue* s_instance;
67 class EventQueueScope {
68 WTF_MAKE_NONCOPYABLE(EventQueueScope);
71 EventQueueScope() { ScopedEventQueue::instance()->incrementScopingLevel(); }
72 ~EventQueueScope() { ScopedEventQueue::instance()->decrementScopingLevel(); }
77 #endif // ScopedEventQueue_h