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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_GFX_ANIMATION_ANIMATION_DELEGATE_H_
      6 #define UI_GFX_ANIMATION_ANIMATION_DELEGATE_H_
      7 
      8 #include "ui/gfx/gfx_export.h"
      9 
     10 namespace gfx {
     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 GFX_EXPORT AnimationDelegate {
     19  public:
     20   virtual ~AnimationDelegate() {}
     21 
     22   // Called when an animation has completed.
     23   virtual void AnimationEnded(const Animation* animation) {}
     24 
     25   // Called when an animation has progressed.
     26   virtual void AnimationProgressed(const Animation* animation) {}
     27 
     28   // Called when an animation has been canceled.
     29   virtual void AnimationCanceled(const Animation* animation) {}
     30 };
     31 
     32 }  // namespace gfx
     33 
     34 #endif  // UI_GFX_ANIMATION_ANIMATION_DELEGATE_H_
     35