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_CONTAINER_OBSERVER_H_ 6 #define UI_GFX_ANIMATION_ANIMATION_CONTAINER_OBSERVER_H_ 7 8 #include "ui/gfx/gfx_export.h" 9 10 namespace gfx { 11 12 class AnimationContainer; 13 14 // The observer is notified after every update of the animations managed by 15 // the container. 16 class GFX_EXPORT AnimationContainerObserver { 17 public: 18 // Invoked on every tick of the timer managed by the container and after 19 // all the animations have updated. 20 virtual void AnimationContainerProgressed( 21 AnimationContainer* container) = 0; 22 23 // Invoked when no more animations are being managed by this container. 24 virtual void AnimationContainerEmpty(AnimationContainer* container) = 0; 25 26 protected: ~AnimationContainerObserver()27 virtual ~AnimationContainerObserver() {} 28 }; 29 30 } // namespace gfx 31 32 #endif // UI_GFX_ANIMATION_ANIMATION_CONTAINER_OBSERVER_H_ 33