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// 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 ASH_DISPLAY_SHARED_DISPLAY_EDGE_INDICATOR_H_
#define ASH_DISPLAY_SHARED_DISPLAY_EDGE_INDICATOR_H_
#include <memory>
#include "ash/ash_export.h"
#include "ui/gfx/animation/animation_delegate.h"
namespace gfx {
class Rect;
class ThrobAnimation;
}
namespace views {
class Widget;
}
namespace ash {
// SharedDisplayEdgeIndicator is responsible for showing a window that indicates
// the edge that a window can be dragged into another display.
class ASH_EXPORT SharedDisplayEdgeIndicator : public gfx::AnimationDelegate {
public:
SharedDisplayEdgeIndicator();
SharedDisplayEdgeIndicator(const SharedDisplayEdgeIndicator&) = delete;
SharedDisplayEdgeIndicator& operator=(const SharedDisplayEdgeIndicator&) =
delete;
~SharedDisplayEdgeIndicator() override;
// Shows the indicator window. The |src_bounds| is for the window on the
// source display, and the |dst_bounds| is for the window on the other
// display. Hiding is done in the destructor, when the widgets get released.
void Show(const gfx::Rect& src_bounds, const gfx::Rect& dst_bounds);
// gfx::AnimationDelegate:
void AnimationProgressed(const gfx::Animation* animation) override;
private:
// Used to show the displays' shared edge where a window can be moved across.
// |src_widget_| is for the display where drag starts and |dst_widget_| is
// for the other display.
std::unique_ptr<views::Widget> src_widget_;
std::unique_ptr<views::Widget> dst_widget_;
// Used to transition the opacity.
std::unique_ptr<gfx::ThrobAnimation> animation_;
};
} // namespace ash
#endif // ASH_DISPLAY_SHARED_DISPLAY_EDGE_INDICATOR_H_
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