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1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CC_ANIMATION_SCROLLBAR_ANIMATION_CONTROLLER_H_ | 5 #ifndef CC_ANIMATION_SCROLLBAR_ANIMATION_CONTROLLER_H_ |
6 #define CC_ANIMATION_SCROLLBAR_ANIMATION_CONTROLLER_H_ | 6 #define CC_ANIMATION_SCROLLBAR_ANIMATION_CONTROLLER_H_ |
7 | 7 |
8 #include "base/cancelable_callback.h" | 8 #include "base/cancelable_callback.h" |
9 #include "base/memory/weak_ptr.h" | 9 #include "base/memory/weak_ptr.h" |
10 #include "base/time/time.h" | 10 #include "base/time/time.h" |
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25 // This abstract class represents the compositor-side analogy of | 25 // This abstract class represents the compositor-side analogy of |
26 // ScrollbarAnimator. Individual platforms should subclass it to provide | 26 // ScrollbarAnimator. Individual platforms should subclass it to provide |
27 // specialized implementation. | 27 // specialized implementation. |
28 class CC_EXPORT ScrollbarAnimationController { | 28 class CC_EXPORT ScrollbarAnimationController { |
29 public: | 29 public: |
30 virtual ~ScrollbarAnimationController(); | 30 virtual ~ScrollbarAnimationController(); |
31 | 31 |
32 void Animate(base::TimeTicks now); | 32 void Animate(base::TimeTicks now); |
33 | 33 |
34 virtual void DidScrollBegin(); | 34 virtual void DidScrollBegin(); |
35 virtual void DidScrollUpdate(); | 35 virtual void DidScrollUpdate(bool on_resize); |
36 virtual void DidScrollEnd(); | 36 virtual void DidScrollEnd(); |
37 virtual void DidMouseMoveOffScrollbar() {} | 37 virtual void DidMouseMoveOffScrollbar() {} |
38 virtual void DidMouseMoveNear(float distance) {} | 38 virtual void DidMouseMoveNear(float distance) {} |
39 | 39 |
40 protected: | 40 protected: |
41 ScrollbarAnimationController(ScrollbarAnimationControllerClient* client, | 41 ScrollbarAnimationController(ScrollbarAnimationControllerClient* client, |
42 base::TimeDelta delay_before_starting, | 42 base::TimeDelta delay_before_starting, |
| 43 base::TimeDelta resize_delay_before_starting, |
43 base::TimeDelta duration); | 44 base::TimeDelta duration); |
44 | 45 |
45 virtual void RunAnimationFrame(float progress) = 0; | 46 virtual void RunAnimationFrame(float progress) = 0; |
46 | 47 |
47 void StartAnimation(); | 48 void StartAnimation(); |
48 void StopAnimation(); | 49 void StopAnimation(); |
49 | 50 |
50 private: | 51 private: |
51 // Returns how far through the animation we are as a progress value from | 52 // Returns how far through the animation we are as a progress value from |
52 // 0 to 1. | 53 // 0 to 1. |
53 float AnimationProgressAtTime(base::TimeTicks now); | 54 float AnimationProgressAtTime(base::TimeTicks now); |
54 | 55 |
55 void PostDelayedFade(); | 56 void PostDelayedFade(bool on_resize); |
56 | 57 |
57 ScrollbarAnimationControllerClient* client_; | 58 ScrollbarAnimationControllerClient* client_; |
58 base::TimeTicks last_awaken_time_; | 59 base::TimeTicks last_awaken_time_; |
59 base::TimeDelta delay_before_starting_; | 60 base::TimeDelta delay_before_starting_; |
| 61 base::TimeDelta resize_delay_before_starting_; |
60 base::TimeDelta duration_; | 62 base::TimeDelta duration_; |
61 bool is_animating_; | 63 bool is_animating_; |
62 | 64 |
63 bool currently_scrolling_; | 65 bool currently_scrolling_; |
64 bool scroll_gesture_has_scrolled_; | 66 bool scroll_gesture_has_scrolled_; |
65 base::CancelableClosure delayed_scrollbar_fade_; | 67 base::CancelableClosure delayed_scrollbar_fade_; |
66 | 68 |
67 base::WeakPtrFactory<ScrollbarAnimationController> weak_factory_; | 69 base::WeakPtrFactory<ScrollbarAnimationController> weak_factory_; |
68 }; | 70 }; |
69 | 71 |
70 } // namespace cc | 72 } // namespace cc |
71 | 73 |
72 #endif // CC_ANIMATION_SCROLLBAR_ANIMATION_CONTROLLER_H_ | 74 #endif // CC_ANIMATION_SCROLLBAR_ANIMATION_CONTROLLER_H_ |
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