Source/WebCore/platform/TouchpadFlingPlatformGestureCurve.h - Issue 9931004: Merge 112364 - [chromium] Transfer wheel fling via WebCompositorInputHandlerClient

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Issue 9931004: Merge 112364 - [chromium] Transfer wheel fling via WebCompositorInputHandlerClient (Closed) Base URL: http://svn.webkit.org/repository/webkit/branches/chromium/1084/

Patch Set: Created 8 years, 8 months ago

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1 /*	1 /*

2 * Copyright (C) 2012 Google Inc. All rights reserved.	2 * Copyright (C) 2012 Google Inc. All rights reserved.

3 *	3 *

4 * Redistribution and use in source and binary forms, with or without	4 * Redistribution and use in source and binary forms, with or without

5 * modification, are permitted provided that the following conditions	5 * modification, are permitted provided that the following conditions

6 * are met:	6 * are met:

7 * 1. Redistributions of source code must retain the above copyright	7 * 1. Redistributions of source code must retain the above copyright

8 * notice, this list of conditions and the following disclaimer.	8 * notice, this list of conditions and the following disclaimer.

9 * 2. Redistributions in binary form must reproduce the above copyright	9 * 2. Redistributions in binary form must reproduce the above copyright

10 * notice, this list of conditions and the following disclaimer in the	10 * notice, this list of conditions and the following disclaimer in the

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34 namespace WebCore {	34 namespace WebCore {

35	35

36 class PlatformGestureCurveTarget;	36 class PlatformGestureCurveTarget;

37	37

38 // Implementation of PlatformGestureCurve suitable for touch pad/screen-based	38 // Implementation of PlatformGestureCurve suitable for touch pad/screen-based

39 // fling scroll. Starts with a flat velocity profile based on 'velocity', which	39 // fling scroll. Starts with a flat velocity profile based on 'velocity', which

40 // tails off to zero. Time is scaled to that duration of the fling is proportion al	40 // tails off to zero. Time is scaled to that duration of the fling is proportion al

41 // the initial velocity.	41 // the initial velocity.

42 class TouchpadFlingPlatformGestureCurve : public PlatformGestureCurve {	42 class TouchpadFlingPlatformGestureCurve : public PlatformGestureCurve {

43 public:	43 public:

44 static PassOwnPtr<PlatformGestureCurve> create(const FloatPoint& velocity);	44 static PassOwnPtr<PlatformGestureCurve> create(const FloatPoint& velocity, I ntPoint cumulativeScroll = IntPoint());

45 static PassOwnPtr<PlatformGestureCurve> create(const FloatPoint& velocity, c onst float unitTimeScaleLog10, const FloatPoint& bezierP1, const FloatPoint& bez ierP2);	45 static PassOwnPtr<PlatformGestureCurve> create(const FloatPoint& velocity, c onst float unitTimeScaleLog10, const FloatPoint& bezierP1, const FloatPoint& bez ierP2, IntPoint cumulativeScroll = IntPoint());

46 virtual ~TouchpadFlingPlatformGestureCurve();	46 virtual ~TouchpadFlingPlatformGestureCurve();

47	47

48 virtual const char* debugName() const { return "TouchpadFling"; }	48 virtual const char* debugName() const { return "TouchpadFling"; }

49 virtual bool apply(double monotonicTime, PlatformGestureCurveTarget*);	49 virtual bool apply(double monotonicTime, PlatformGestureCurveTarget*);

50	50

51 private:	51 private:

52 explicit TouchpadFlingPlatformGestureCurve(const FloatPoint& velocity, const float unitTimeScaleLog10, const FloatPoint& bezierP1, const FloatPoint& bezierP 2);	52 TouchpadFlingPlatformGestureCurve(const FloatPoint& velocity, const float un itTimeScaleLog10, const FloatPoint& bezierP1, const FloatPoint& bezierP2, const IntPoint& cumulativeScroll);

53	53

54 FloatPoint m_velocity;	54 FloatPoint m_velocity;

55 float m_timeScaleFactor;	55 float m_timeScaleFactor;

56 IntPoint m_cumulativeScroll;	56 IntPoint m_cumulativeScroll;

57 UnitBezier m_flingBezier;	57 UnitBezier m_flingBezier;

58 };	58 };

59	59

60 } // namespace WebCore	60 } // namespace WebCore

61	61

62 #endif	62 #endif

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