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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_INPUT_SCROLLBAR_ANIMATION_CONTROLLER_H_ | 5 #ifndef CC_INPUT_SCROLLBAR_ANIMATION_CONTROLLER_H_ |
6 #define CC_INPUT_SCROLLBAR_ANIMATION_CONTROLLER_H_ | 6 #define CC_INPUT_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" |
11 #include "cc/base/cc_export.h" | 11 #include "cc/base/cc_export.h" |
12 #include "cc/layers/layer_impl.h" | 12 #include "cc/layers/layer_impl.h" |
13 #include "cc/layers/scrollbar_layer_impl_base.h" | 13 #include "cc/layers/scrollbar_layer_impl_base.h" |
14 #include "ui/gfx/geometry/vector2d_f.h" | 14 #include "ui/gfx/geometry/vector2d_f.h" |
15 | 15 |
16 namespace cc { | 16 namespace cc { |
17 | 17 |
18 class ScrollbarAnimationController; | 18 class ScrollbarAnimationController; |
19 | 19 |
20 class CC_EXPORT ScrollbarAnimationControllerClient { | 20 class CC_EXPORT ScrollbarAnimationControllerClient { |
21 public: | 21 public: |
22 virtual void PostDelayedScrollbarAnimationTask(const base::Closure& task, | 22 virtual void PostDelayedScrollbarAnimationTask(const base::Closure& task, |
23 base::TimeDelta delay) = 0; | 23 base::TimeDelta delay) = 0; |
24 virtual void SetNeedsRedrawForScrollbarAnimation() = 0; | 24 virtual void SetNeedsRedrawForScrollbarAnimation() = 0; |
25 virtual void SetNeedsAnimateForScrollbarAnimation() = 0; | 25 virtual void SetNeedsAnimateForScrollbarAnimation() = 0; |
| 26 virtual void DidChangeScrollbarVisibility() = 0; |
26 virtual ScrollbarSet ScrollbarsFor(int scroll_layer_id) const = 0; | 27 virtual ScrollbarSet ScrollbarsFor(int scroll_layer_id) const = 0; |
27 | 28 |
28 protected: | 29 protected: |
29 virtual ~ScrollbarAnimationControllerClient() {} | 30 virtual ~ScrollbarAnimationControllerClient() {} |
30 }; | 31 }; |
31 | 32 |
32 // This abstract class represents the compositor-side analogy of | 33 // This abstract class represents the compositor-side analogy of |
33 // ScrollbarAnimator. Individual platforms should subclass it to provide | 34 // ScrollbarAnimator. Individual platforms should subclass it to provide |
34 // specialized implementation. | 35 // specialized implementation. |
35 class CC_EXPORT ScrollbarAnimationController { | 36 class CC_EXPORT ScrollbarAnimationController { |
36 public: | 37 public: |
37 virtual ~ScrollbarAnimationController(); | 38 virtual ~ScrollbarAnimationController(); |
38 | 39 |
39 bool Animate(base::TimeTicks now); | 40 bool Animate(base::TimeTicks now); |
40 | 41 |
41 virtual void DidScrollBegin(); | 42 virtual void DidScrollBegin(); |
42 virtual void DidScrollUpdate(bool on_resize); | 43 virtual void DidScrollUpdate(bool on_resize); |
43 virtual void DidScrollEnd(); | 44 virtual void DidScrollEnd(); |
44 virtual void DidMouseDown() {} | 45 virtual void DidMouseDown() {} |
45 virtual void DidMouseUp() {} | 46 virtual void DidMouseUp() {} |
46 virtual void DidMouseLeave() {} | 47 virtual void DidMouseLeave() {} |
47 virtual void DidMouseMoveNear(float distance) {} | 48 virtual void DidMouseMoveNear(float distance) {} |
| 49 virtual bool ScrollbarsHidden() const; |
48 | 50 |
49 protected: | 51 protected: |
50 ScrollbarAnimationController(int scroll_layer_id, | 52 ScrollbarAnimationController(int scroll_layer_id, |
51 ScrollbarAnimationControllerClient* client, | 53 ScrollbarAnimationControllerClient* client, |
52 base::TimeDelta delay_before_starting, | 54 base::TimeDelta delay_before_starting, |
53 base::TimeDelta resize_delay_before_starting); | 55 base::TimeDelta resize_delay_before_starting); |
54 | 56 |
55 virtual void RunAnimationFrame(float progress) = 0; | 57 virtual void RunAnimationFrame(float progress) = 0; |
56 virtual const base::TimeDelta& Duration() = 0; | 58 virtual const base::TimeDelta& Duration() = 0; |
57 | 59 |
58 void StartAnimation(); | 60 void StartAnimation(); |
59 void StopAnimation(); | 61 void StopAnimation(); |
60 ScrollbarSet Scrollbars() const; | 62 ScrollbarSet Scrollbars() const; |
61 | 63 |
62 ScrollbarAnimationControllerClient* client_; | 64 ScrollbarAnimationControllerClient* client_; |
63 | 65 |
64 void PostDelayedAnimationTask(bool on_resize); | 66 void PostDelayedAnimationTask(bool on_resize); |
65 | 67 |
| 68 int scroll_layer_id() const { return scroll_layer_id_; } |
| 69 |
66 private: | 70 private: |
67 // Returns how far through the animation we are as a progress value from | 71 // Returns how far through the animation we are as a progress value from |
68 // 0 to 1. | 72 // 0 to 1. |
69 float AnimationProgressAtTime(base::TimeTicks now); | 73 float AnimationProgressAtTime(base::TimeTicks now); |
70 | 74 |
71 base::TimeTicks last_awaken_time_; | 75 base::TimeTicks last_awaken_time_; |
72 base::TimeDelta delay_before_starting_; | 76 base::TimeDelta delay_before_starting_; |
73 base::TimeDelta resize_delay_before_starting_; | 77 base::TimeDelta resize_delay_before_starting_; |
74 | 78 |
75 bool is_animating_; | 79 bool is_animating_; |
76 | 80 |
77 int scroll_layer_id_; | 81 int scroll_layer_id_; |
78 bool currently_scrolling_; | 82 bool currently_scrolling_; |
79 bool scroll_gesture_has_scrolled_; | 83 bool scroll_gesture_has_scrolled_; |
80 base::CancelableClosure delayed_scrollbar_fade_; | 84 base::CancelableClosure delayed_scrollbar_fade_; |
81 | 85 |
82 base::WeakPtrFactory<ScrollbarAnimationController> weak_factory_; | 86 base::WeakPtrFactory<ScrollbarAnimationController> weak_factory_; |
83 }; | 87 }; |
84 | 88 |
85 } // namespace cc | 89 } // namespace cc |
86 | 90 |
87 #endif // CC_INPUT_SCROLLBAR_ANIMATION_CONTROLLER_H_ | 91 #endif // CC_INPUT_SCROLLBAR_ANIMATION_CONTROLLER_H_ |
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