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|   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 |  | 
|   3 // found in the LICENSE file. |  | 
|   4  |  | 
|   5 #ifndef UI_BASE_ANIMATION_ANIMATION_DELEGATE_H_ |  | 
|   6 #define UI_BASE_ANIMATION_ANIMATION_DELEGATE_H_ |  | 
|   7  |  | 
|   8 #include "ui/base/ui_export.h" |  | 
|   9  |  | 
|  10 namespace ui { |  | 
|  11  |  | 
|  12 class Animation; |  | 
|  13  |  | 
|  14 // AnimationDelegate |  | 
|  15 // |  | 
|  16 //  Implement this interface when you want to receive notifications about the |  | 
|  17 //  state of an animation. |  | 
|  18 class UI_EXPORT AnimationDelegate { |  | 
|  19  public: |  | 
|  20   // Called when an animation has completed. |  | 
|  21   virtual void AnimationEnded(const Animation* animation) {} |  | 
|  22  |  | 
|  23   // Called when an animation has progressed. |  | 
|  24   virtual void AnimationProgressed(const Animation* animation) {} |  | 
|  25  |  | 
|  26   // Called when an animation has been canceled. |  | 
|  27   virtual void AnimationCanceled(const Animation* animation) {} |  | 
|  28  |  | 
|  29  protected: |  | 
|  30   virtual ~AnimationDelegate() {} |  | 
|  31 }; |  | 
|  32  |  | 
|  33 }  // namespace ui |  | 
|  34  |  | 
|  35 #endif  // UI_BASE_ANIMATION_ANIMATION_DELEGATE_H_ |  | 
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