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