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// Copyright 2014 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_DISPLAY_ANIMATOR_H_
#define ASH_DISPLAY_DISPLAY_ANIMATOR_H_
#include <map>
#include <memory>
#include "ash/ash_export.h"
#include "base/functional/callback.h"
#include "base/memory/weak_ptr.h"
#include "base/timer/timer.h"
#include "ui/display/manager/display_configurator.h"
namespace aura {
class Window;
} // namespace aura
namespace ui {
class Layer;
} // namespace ui
namespace ash {
// DisplayAnimator provides the visual effects for
// display::DisplayConfigurator, such like fade-out/in during changing
// the display mode.
class ASH_EXPORT DisplayAnimator
: public display::DisplayConfigurator::Observer {
public:
DisplayAnimator();
DisplayAnimator(const DisplayAnimator&) = delete;
DisplayAnimator& operator=(const DisplayAnimator&) = delete;
~DisplayAnimator() override;
void StartFadeOutAnimation(base::OnceClosure callback);
void StartFadeInAnimation();
protected:
// display::DisplayConfigurator::Observer overrides:
void OnDisplayModeChanged(
const display::DisplayConfigurator::DisplayStateList& outputs) override;
void OnDisplayModeChangeFailed(
const display::DisplayConfigurator::DisplayStateList& displays,
display::MultipleDisplayState failed_new_state) override;
private:
// Clears all hiding layers. Note that in case that this method is called
// during an animation, the method call will cancel all of the animations
// and *not* call the registered callback.
void ClearHidingLayers();
std::map<aura::Window*, std::unique_ptr<ui::Layer>> hiding_layers_;
std::unique_ptr<base::OneShotTimer> timer_;
base::WeakPtrFactory<DisplayAnimator> weak_ptr_factory_{this};
};
} // namespace ash
#endif // ASH_DISPLAY_DISPLAY_ANIMATOR_H_
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