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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/time.h" | 8 #include "base/time/time.h" |
9 #include "cc/base/cc_export.h" | 9 #include "cc/base/cc_export.h" |
10 #include "ui/gfx/vector2d_f.h" | 10 #include "ui/gfx/vector2d_f.h" |
11 | 11 |
12 namespace cc { | 12 namespace cc { |
13 | 13 |
14 // This abstract class represents the compositor-side analogy of | 14 // This abstract class represents the compositor-side analogy of |
15 // ScrollbarAnimator. Individual platforms should subclass it to provide | 15 // ScrollbarAnimator. Individual platforms should subclass it to provide |
16 // specialized implementation. | 16 // specialized implementation. |
17 class CC_EXPORT ScrollbarAnimationController { | 17 class CC_EXPORT ScrollbarAnimationController { |
18 public: | 18 public: |
19 virtual ~ScrollbarAnimationController() {} | 19 virtual ~ScrollbarAnimationController() {} |
20 | 20 |
21 virtual bool IsScrollGestureInProgress() const = 0; | 21 virtual bool IsScrollGestureInProgress() const = 0; |
22 virtual bool IsAnimating() const = 0; | 22 virtual bool IsAnimating() const = 0; |
23 virtual base::TimeDelta DelayBeforeStart(base::TimeTicks now) const = 0; | 23 virtual base::TimeDelta DelayBeforeStart(base::TimeTicks now) const = 0; |
24 | 24 |
25 virtual bool Animate(base::TimeTicks now) = 0; | 25 virtual bool Animate(base::TimeTicks now) = 0; |
26 virtual void DidScrollGestureBegin() = 0; | 26 virtual void DidScrollGestureBegin() = 0; |
27 virtual void DidScrollGestureEnd(base::TimeTicks now) = 0; | 27 virtual void DidScrollGestureEnd(base::TimeTicks now) = 0; |
28 virtual void DidProgrammaticallyUpdateScroll(base::TimeTicks now) = 0; | 28 virtual void DidProgrammaticallyUpdateScroll(base::TimeTicks now) = 0; |
29 }; | 29 }; |
30 | 30 |
31 } // namespace cc | 31 } // namespace cc |
32 | 32 |
33 #endif // CC_ANIMATION_SCROLLBAR_ANIMATION_CONTROLLER_H_ | 33 #endif // CC_ANIMATION_SCROLLBAR_ANIMATION_CONTROLLER_H_ |
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