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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 APP_ANIMATION_CONTAINER_ELEMENT_H_ | 5 #ifndef UI_BASE_ANIMATION_ANIMATION_CONTAINER_ELEMENT_H_ |
6 #define APP_ANIMATION_CONTAINER_ELEMENT_H_ | 6 #define UI_BASE_ANIMATION_ANIMATION_CONTAINER_ELEMENT_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include "base/time.h" | 9 #include "base/time.h" |
10 | 10 |
| 11 namespace ui { |
| 12 |
11 // Interface for the elements the AnimationContainer contains. This is | 13 // Interface for the elements the AnimationContainer contains. This is |
12 // implemented by Animation. | 14 // implemented by Animation. |
13 class AnimationContainerElement { | 15 class AnimationContainerElement { |
14 public: | 16 public: |
15 // Sets the start of the animation. This is invoked from | 17 // Sets the start of the animation. This is invoked from |
16 // AnimationContainer::Start. | 18 // AnimationContainer::Start. |
17 virtual void SetStartTime(base::TimeTicks start_time) = 0; | 19 virtual void SetStartTime(base::TimeTicks start_time) = 0; |
18 | 20 |
19 // Invoked when the animation is to progress. | 21 // Invoked when the animation is to progress. |
20 virtual void Step(base::TimeTicks time_now) = 0; | 22 virtual void Step(base::TimeTicks time_now) = 0; |
21 | 23 |
22 // Returns the time interval of the animation. If an Element needs to change | 24 // Returns the time interval of the animation. If an Element needs to change |
23 // this it should first invoke Stop, then Start. | 25 // this it should first invoke Stop, then Start. |
24 virtual base::TimeDelta GetTimerInterval() const = 0; | 26 virtual base::TimeDelta GetTimerInterval() const = 0; |
25 | 27 |
26 protected: | 28 protected: |
27 virtual ~AnimationContainerElement() {} | 29 virtual ~AnimationContainerElement() {} |
28 }; | 30 }; |
29 | 31 |
30 #endif // APP_ANIMATION_CONTAINER_ELEMENT_H_ | 32 } // namespace ui |
| 33 |
| 34 #endif // UI_BASE_ANIMATION_ANIMATION_CONTAINER_ELEMENT_H_ |
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