1/*
2 * Copyright (C) 2012 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 *  * Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 *  * 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 THE COPYRIGHT HOLDERS ``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 GestureEvent_h
27#define GestureEvent_h
28
29#include "core/events/EventDispatcher.h"
30#include "core/events/MouseRelatedEvent.h"
31#include "platform/PlatformGestureEvent.h"
32
33namespace WebCore {
34
35class GestureEvent FINAL : public MouseRelatedEvent {
36public:
37    virtual ~GestureEvent() { }
38
39    static PassRefPtrWillBeRawPtr<GestureEvent> create(PassRefPtrWillBeRawPtr<AbstractView>, const PlatformGestureEvent&);
40
41    virtual bool isGestureEvent() const OVERRIDE;
42
43    virtual const AtomicString& interfaceName() const OVERRIDE;
44
45    float deltaX() const { return m_deltaX; }
46    float deltaY() const { return m_deltaY; }
47
48    virtual void trace(Visitor*) OVERRIDE;
49
50private:
51    GestureEvent();
52    GestureEvent(const AtomicString& type, PassRefPtrWillBeRawPtr<AbstractView>, int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, float deltaX, float deltaY);
53
54    float m_deltaX;
55    float m_deltaY;
56};
57
58class GestureEventDispatchMediator FINAL : public EventDispatchMediator {
59public:
60    static PassRefPtrWillBeRawPtr<GestureEventDispatchMediator> create(PassRefPtrWillBeRawPtr<GestureEvent> gestureEvent)
61    {
62        return adoptRefWillBeNoop(new GestureEventDispatchMediator(gestureEvent));
63    }
64
65private:
66    explicit GestureEventDispatchMediator(PassRefPtrWillBeRawPtr<GestureEvent>);
67
68    GestureEvent* event() const;
69
70    virtual bool dispatchEvent(EventDispatcher*) const OVERRIDE;
71};
72
73DEFINE_EVENT_TYPE_CASTS(GestureEvent);
74
75} // namespace WebCore
76
77#endif // GestureEvent_h
78