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Side by Side Diff: Source/platform/scroll/ScrollAnimator.h

Issue 977663002: Mac: Delete now-dead elastic overscroll code (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Created 5 years, 9 months ago
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1 /* 1 /*
2 * Copyright (c) 2010, Google Inc. All rights reserved. 2 * Copyright (c) 2010, 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 are 5 * modification, are permitted provided that the following conditions are
6 * met: 6 * met:
7 * 7 *
8 * * Redistributions of source code must retain the above copyright 8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer. 9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above 10 * * Redistributions in binary form must reproduce the above
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92 92
93 virtual void didAddVerticalScrollbar(Scrollbar*) { } 93 virtual void didAddVerticalScrollbar(Scrollbar*) { }
94 virtual void willRemoveVerticalScrollbar(Scrollbar*) { } 94 virtual void willRemoveVerticalScrollbar(Scrollbar*) { }
95 virtual void didAddHorizontalScrollbar(Scrollbar*) { } 95 virtual void didAddHorizontalScrollbar(Scrollbar*) { }
96 virtual void willRemoveHorizontalScrollbar(Scrollbar*) { } 96 virtual void willRemoveHorizontalScrollbar(Scrollbar*) { }
97 97
98 virtual bool shouldScrollbarParticipateInHitTesting(Scrollbar*) { return tru e; } 98 virtual bool shouldScrollbarParticipateInHitTesting(Scrollbar*) { return tru e; }
99 99
100 virtual void notifyContentAreaScrolled(const FloatSize&) { } 100 virtual void notifyContentAreaScrolled(const FloatSize&) { }
101 101
102 virtual bool isRubberBandInProgress() const { return false; }
103
104 protected: 102 protected:
105 explicit ScrollAnimator(ScrollableArea*); 103 explicit ScrollAnimator(ScrollableArea*);
106 104
107 virtual void notifyPositionChanged(); 105 virtual void notifyPositionChanged();
108 106
109 ScrollableArea* m_scrollableArea; 107 ScrollableArea* m_scrollableArea;
110 float m_currentPosX; // We avoid using a FloatPoint in order to reduce 108 float m_currentPosX; // We avoid using a FloatPoint in order to reduce
111 float m_currentPosY; // subclass code complexity. 109 float m_currentPosY; // subclass code complexity.
112 110
113 private: 111 private:
114 float clampScrollPosition(ScrollbarOrientation, float); 112 float clampScrollPosition(ScrollbarOrientation, float);
115 }; 113 };
116 114
117 } // namespace blink 115 } // namespace blink
118 116
119 #endif // ScrollAnimator_h 117 #endif // ScrollAnimator_h
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