1/*
2 * Copyright (C) 2012 Victor Carbune (victor@rosedu.org)
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#ifndef GenericEventQueue_h
27#define GenericEventQueue_h
28
29#include "core/events/EventQueue.h"
30#include "core/events/EventTarget.h"
31#include "platform/Timer.h"
32#include "wtf/PassOwnPtr.h"
33#include "wtf/RefPtr.h"
34#include "wtf/Vector.h"
35
36namespace blink {
37
38class GenericEventQueue FINAL : public EventQueue {
39    WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
40public:
41    static PassOwnPtrWillBeRawPtr<GenericEventQueue> create(EventTarget*);
42    virtual ~GenericEventQueue();
43
44    // EventQueue
45    virtual void trace(Visitor*) OVERRIDE;
46    virtual bool enqueueEvent(PassRefPtrWillBeRawPtr<Event>) OVERRIDE;
47    virtual bool cancelEvent(Event*) OVERRIDE;
48    virtual void close() OVERRIDE;
49
50    void cancelAllEvents();
51    bool hasPendingEvents() const;
52
53private:
54    explicit GenericEventQueue(EventTarget*);
55    void timerFired(Timer<GenericEventQueue>*);
56
57    RawPtrWillBeMember<EventTarget> m_owner;
58    WillBeHeapVector<RefPtrWillBeMember<Event> > m_pendingEvents;
59    Timer<GenericEventQueue> m_timer;
60
61    bool m_isClosed;
62};
63
64}
65
66#endif
67