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
36namespace blink {
37
38class Event;
39class DOMWindowEventQueueTimer;
40class Node;
41class 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
49class DOMWindowEventQueue FINAL : DOMWINDOWEVENTQUEUE_BASE_CLASSES {
50public:
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
60private:
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