chromium/cc/input/scrollbar_animation_controller.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CC_INPUT_SCROLLBAR_ANIMATION_CONTROLLER_H_
#define CC_INPUT_SCROLLBAR_ANIMATION_CONTROLLER_H_

#include <memory>

#include "base/cancelable_callback.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/time/time.h"
#include "cc/cc_export.h"
#include "cc/input/single_scrollbar_animation_controller_thinning.h"
#include "cc/layers/layer_impl.h"
#include "cc/layers/scrollbar_layer_impl_base.h"
#include "ui/gfx/geometry/vector2d_f.h"

namespace cc {

class CC_EXPORT ScrollbarAnimationControllerClient { … };

// This class show scrollbars when scroll and fade out after an idle delay.
// The fade animations works on both scrollbars and is controlled in this class
// This class also passes the mouse state to each
// SingleScrollbarAnimationControllerThinning. The thinning animations are
// independent between vertical/horizontal and are managed by the
// SingleScrollbarAnimationControllerThinnings.
class CC_EXPORT ScrollbarAnimationController { … };

}  // namespace cc

#endif  // CC_INPUT_SCROLLBAR_ANIMATION_CONTROLLER_H_