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// Copyright 2015 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_VIEWS_ANIMATION_INK_DROP_HOST_H_
#define UI_VIEWS_ANIMATION_INK_DROP_HOST_H_
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "ui/gfx/geometry/point.h"
#include "ui/views/views_export.h"
namespace ui {
class Layer;
} // namespace ui
namespace views {
class InkDropAnimation;
class InkDropHover;
// Used by the InkDropAnimationController to add and remove the ink drop layers
// from a host's layer tree. Typically the ink drop layer is added to a View's
// layer but it can also be added to a View's ancestor layer.
//
// Note: Some Views do not own a Layer, but you can use
// View::SetLayer(new ui::Layer(ui::LAYER_NOT_DRAWN)) to force the View to have
// a lightweight Layer that can parent the ink drop layer.
class VIEWS_EXPORT InkDropHost {
public:
InkDropHost() {}
virtual ~InkDropHost() {}
// Adds the |ink_drop_layer| in to a visible layer tree.
virtual void AddInkDropLayer(ui::Layer* ink_drop_layer) = 0;
// Removes |ink_drop_layer| from the layer tree.
virtual void RemoveInkDropLayer(ui::Layer* ink_drop_layer) = 0;
// Creates and returns the effect used for press.
virtual scoped_ptr<InkDropAnimation> CreateInkDropAnimation() const = 0;
// Creates and returns the effect used for hover.
virtual scoped_ptr<InkDropHover> CreateInkDropHover() const = 0;
private:
DISALLOW_COPY_AND_ASSIGN(InkDropHost);
};
} // namespace views
#endif // UI_VIEWS_ANIMATION_INK_DROP_HOST_H_
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