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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_GFX_COMPOSITOR_LAYER_ANIMATION_OBSERVER_H_
#define UI_GFX_COMPOSITOR_LAYER_ANIMATION_OBSERVER_H_
#pragma once
#include "ui/gfx/compositor/compositor_export.h"
namespace ui {
class LayerAnimationSequence;
// LayerAnimationObservers are notified when animations complete.
class COMPOSITOR_EXPORT LayerAnimationObserver {
public:
// Called when the |sequence| ends. Not called if |sequence| is aborted.
virtual void OnLayerAnimationEnded(
const LayerAnimationSequence* sequence) = 0;
// Called if |sequence| is aborted for any reason. Should never do anything
// that may cause another animation to be started.
virtual void OnLayerAnimationAborted(
const LayerAnimationSequence* sequence) = 0;
// Called when the animation is scheduled.
virtual void OnLayerAnimationScheduled(
const LayerAnimationSequence* sequence) = 0;
protected:
virtual ~LayerAnimationObserver() {}
};
} // namespace ui
#endif // UI_GFX_COMPOSITOR_LAYER_ANIMATION_OBSERVER_H_
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