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1 /*
2  * Copyright (C) 2004, 2005, 2006, 2009 Apple 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 #ifndef PlatformMouseEvent_h
27 #define PlatformMouseEvent_h
28 
29 #include "platform/PlatformEvent.h"
30 #include "platform/geometry/IntPoint.h"
31 
32 namespace blink {
33 
34 // These button numbers match the ones used in the DOM API, 0 through 2, except for NoButton which isn't specified.
35 enum MouseButton { NoButton = -1, LeftButton, MiddleButton, RightButton };
36 
37 class PlatformMouseEvent : public PlatformEvent {
38 public:
39     enum SyntheticEventType {
40         // Real mouse input events or synthetic events that behave just like real events
41         RealOrIndistinguishable,
42         // Mouse events derived from touch input
43         FromTouch,
44     };
45 
PlatformMouseEvent()46     PlatformMouseEvent()
47         : PlatformEvent(PlatformEvent::MouseMoved)
48         , m_button(NoButton)
49         , m_clickCount(0)
50         , m_synthesized(RealOrIndistinguishable)
51         , m_modifierFlags(0)
52     {
53     }
54 
PlatformMouseEvent(const IntPoint & position,const IntPoint & globalPosition,MouseButton button,PlatformEvent::Type type,int clickCount,Modifiers modifiers,double timestamp)55     PlatformMouseEvent(const IntPoint& position, const IntPoint& globalPosition, MouseButton button, PlatformEvent::Type type, int clickCount, Modifiers modifiers, double timestamp)
56         : PlatformEvent(type, modifiers, timestamp)
57         , m_position(position)
58         , m_globalPosition(globalPosition)
59         , m_button(button)
60         , m_clickCount(clickCount)
61         , m_synthesized(RealOrIndistinguishable)
62         , m_modifierFlags(0)
63     {
64     }
65 
PlatformMouseEvent(const IntPoint & position,const IntPoint & globalPosition,MouseButton button,PlatformEvent::Type type,int clickCount,Modifiers modifiers,SyntheticEventType synthesized,double timestamp)66     PlatformMouseEvent(const IntPoint& position, const IntPoint& globalPosition, MouseButton button, PlatformEvent::Type type, int clickCount, Modifiers modifiers, SyntheticEventType synthesized, double timestamp)
67         : PlatformEvent(type, modifiers, timestamp)
68         , m_position(position)
69         , m_globalPosition(globalPosition)
70         , m_button(button)
71         , m_clickCount(clickCount)
72         , m_synthesized(synthesized)
73         , m_modifierFlags(0)
74     {
75     }
76 
PlatformMouseEvent(const IntPoint & position,const IntPoint & globalPosition,MouseButton button,PlatformEvent::Type type,int clickCount,bool shiftKey,bool ctrlKey,bool altKey,bool metaKey,SyntheticEventType synthesized,double timestamp)77     PlatformMouseEvent(const IntPoint& position, const IntPoint& globalPosition, MouseButton button, PlatformEvent::Type type, int clickCount, bool shiftKey, bool ctrlKey, bool altKey, bool metaKey, SyntheticEventType synthesized, double timestamp)
78         : PlatformEvent(type, shiftKey, ctrlKey, altKey, metaKey, timestamp)
79         , m_position(position)
80         , m_globalPosition(globalPosition)
81         , m_button(button)
82         , m_clickCount(clickCount)
83         , m_synthesized(synthesized)
84         , m_modifierFlags(0)
85     {
86     }
87 
position()88     const IntPoint& position() const { return m_position; }
globalPosition()89     const IntPoint& globalPosition() const { return m_globalPosition; }
movementDelta()90     const IntPoint& movementDelta() const { return m_movementDelta; }
91 
button()92     MouseButton button() const { return m_button; }
clickCount()93     int clickCount() const { return m_clickCount; }
modifierFlags()94     unsigned modifierFlags() const { return m_modifierFlags; }
fromTouch()95     bool fromTouch() const { return m_synthesized == FromTouch; }
syntheticEventType()96     SyntheticEventType syntheticEventType() const { return m_synthesized; }
97 
98 protected:
99     IntPoint m_position;
100     IntPoint m_globalPosition;
101     IntPoint m_movementDelta;
102     MouseButton m_button;
103     int m_clickCount;
104     SyntheticEventType m_synthesized;
105     unsigned m_modifierFlags;
106 };
107 
108 } // namespace blink
109 
110 #endif // PlatformMouseEvent_h
111