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// Copyright 2012 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 CC_SCROLLBAR_ANIMATION_CONTROLLER_H_
#define CC_SCROLLBAR_ANIMATION_CONTROLLER_H_
#include "base/time.h"
#include "cc/cc_export.h"
#include "ui/gfx/vector2d_f.h"
namespace cc {
// This abstract class represents the compositor-side analogy of ScrollbarAnimator.
// Individual platforms should subclass it to provide specialized implementation.
class CC_EXPORT ScrollbarAnimationController {
public:
virtual ~ScrollbarAnimationController() {}
virtual bool animate(base::TimeTicks) = 0;
virtual void didPinchGestureUpdate(base::TimeTicks) = 0;
virtual void didPinchGestureEnd(base::TimeTicks) = 0;
virtual void didUpdateScrollOffset(base::TimeTicks) = 0;
};
} // namespace cc
#endif // CC_SCROLLBAR_ANIMATION_CONTROLLER_H_
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