1 /* 2 * Copyright (C) 2010 Google Inc. All Rights Reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 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 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 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 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 * 25 */ 26 27 #ifndef DOMWindowEventQueue_h 28 #define DOMWindowEventQueue_h 29 30 #include "core/events/EventQueue.h" 31 #include "wtf/HashSet.h" 32 #include "wtf/ListHashSet.h" 33 #include "wtf/OwnPtr.h" 34 #include "wtf/RefCounted.h" 35 36 namespace blink { 37 38 class Event; 39 class DOMWindowEventQueueTimer; 40 class Node; 41 class ExecutionContext; 42 43 #if ENABLE(OILPAN) 44 #define DOMWINDOWEVENTQUEUE_BASE_CLASSES public EventQueue 45 #else 46 #define DOMWINDOWEVENTQUEUE_BASE_CLASSES public RefCounted<DOMWindowEventQueue>, public EventQueue 47 #endif 48 49 class DOMWindowEventQueue FINAL : DOMWINDOWEVENTQUEUE_BASE_CLASSES { 50 public: 51 static PassRefPtrWillBeRawPtr<DOMWindowEventQueue> create(ExecutionContext*); 52 virtual ~DOMWindowEventQueue(); 53 54 // EventQueue 55 virtual void trace(Visitor*) OVERRIDE; 56 virtual bool enqueueEvent(PassRefPtrWillBeRawPtr<Event>) OVERRIDE; 57 virtual bool cancelEvent(Event*) OVERRIDE; 58 virtual void close() OVERRIDE; 59 60 private: 61 explicit DOMWindowEventQueue(ExecutionContext*); 62 63 void pendingEventTimerFired(); 64 void dispatchEvent(PassRefPtrWillBeRawPtr<Event>); 65 66 OwnPtrWillBeMember<DOMWindowEventQueueTimer> m_pendingEventTimer; 67 WillBeHeapListHashSet<RefPtrWillBeMember<Event>, 16> m_queuedEvents; 68 bool m_isClosed; 69 70 friend class DOMWindowEventQueueTimer; 71 }; 72 73 } 74 75 #endif // DOMWindowEventQueue_h 76