sky/engine/platform/PlatformWheelEvent.h - Issue 870073003: Remove mouse events from Sky

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Issue 870073003: Remove mouse events from Sky (Closed) Base URL: git@github.com:domokit/mojo.git@master

Patch Set: Created 5 years, 11 months ago

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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 SKY_ENGINE_PLATFORM_PLATFORMWHEELEVENT_H_

27 #define SKY_ENGINE_PLATFORM_PLATFORMWHEELEVENT_H_

28

29 #include "sky/engine/platform/PlatformEvent.h"

30 #include "sky/engine/platform/geometry/IntPoint.h"

31

32 namespace blink {

33

34 // Wheel events come in two flavors:

35 // The ScrollByPixelWheelEvent is a fine-grained event that specifies the precis e number of pixels to scroll. It is sent directly by MacBook touchpads on OS X,

36 // and synthesized in other cases where platforms generate line-by-line scrollin g events.

37 // The ScrollByPageWheelEvent indicates that the wheel event should scroll an en tire page. In this case WebCore's built in paging behavior is used to page

38 // up and down (you get the same behavior as if the user was clicking in a scrol lbar track to page up or page down).

39 enum PlatformWheelEventGranularity {

40 ScrollByPageWheelEvent,

41 ScrollByPixelWheelEvent,

42 };

43

44 class PlatformWheelEvent : public PlatformEvent {

45 public:

46 PlatformWheelEvent()

47 : PlatformEvent(PlatformEvent::Wheel)

48 , m_deltaX(0)

49 , m_deltaY(0)

50 , m_wheelTicksX(0)

51 , m_wheelTicksY(0)

52 , m_granularity(ScrollByPixelWheelEvent)

53 , m_hasPreciseScrollingDeltas(false)

54 {

55 }

56

57 PlatformWheelEvent(IntPoint position, IntPoint globalPosition, float deltaX, float deltaY, float wheelTicksX, float wheelTicksY, PlatformWheelEventGranulari ty granularity, bool shiftKey, bool ctrlKey, bool altKey, bool metaKey)

58 : PlatformEvent(PlatformEvent::Wheel, shiftKey, ctrlKey, altKey, metaKey , 0)

59 , m_position(position)

60 , m_globalPosition(globalPosition)

61 , m_deltaX(deltaX)

62 , m_deltaY(deltaY)

63 , m_wheelTicksX(wheelTicksX)

64 , m_wheelTicksY(wheelTicksY)

65 , m_granularity(granularity)

66 , m_hasPreciseScrollingDeltas(false)

67 {

68 }

69

70 const IntPoint& position() const { return m_position; } // PlatformWindow co ordinates.

71 const IntPoint& globalPosition() const { return m_globalPosition; } // Scree n coordinates.

72

73 float deltaX() const { return m_deltaX; }

74 float deltaY() const { return m_deltaY; }

75

76 float wheelTicksX() const { return m_wheelTicksX; }

77 float wheelTicksY() const { return m_wheelTicksY; }

78

79 PlatformWheelEventGranularity granularity() const { return m_granularity; }

80

81 bool hasPreciseScrollingDeltas() const { return m_hasPreciseScrollingDeltas; }

82 void setHasPreciseScrollingDeltas(bool b) { m_hasPreciseScrollingDeltas = b; }

83 bool useLatchedEventNode() const { return false; }

84

85 protected:

86 IntPoint m_position;

87 IntPoint m_globalPosition;

88 float m_deltaX;

89 float m_deltaY;

90 float m_wheelTicksX;

91 float m_wheelTicksY;

92 PlatformWheelEventGranularity m_granularity;

93 bool m_hasPreciseScrollingDeltas;

94 };

95

96 } // namespace blink

97

98 #endif // SKY_ENGINE_PLATFORM_PLATFORMWHEELEVENT_H_

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