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// Copyright 2015 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_ROTATOR_SCREEN_ROTATION_ANIMATION_H_
#define ASH_ROTATOR_SCREEN_ROTATION_ANIMATION_H_
#include <stdint.h>
#include <memory>
#include "ash/ash_export.h"
#include "base/time/time.h"
#include "ui/compositor/layer_animation_element.h"
#include "ui/gfx/animation/tween.h"
#include "ui/gfx/geometry/point.h"
namespace ui {
class InterpolatedTransform;
class Layer;
}
namespace ash {
// A LayerAnimationElement that will animate a layer by rotating it around a
// pivot point.
class ASH_EXPORT ScreenRotationAnimation : public ui::LayerAnimationElement {
public:
// Creates an animation element that will rotate |layer| from |start_degrees|
// to |end_degrees| around the given |pivot| and will take |duration| amount
// of time.
ScreenRotationAnimation(ui::Layer* layer,
int start_degrees,
int end_degrees,
float initial_opacity,
float target_opacity,
gfx::Point pivot,
base::TimeDelta duration,
gfx::Tween::Type twen_type);
ScreenRotationAnimation(const ScreenRotationAnimation&) = delete;
ScreenRotationAnimation& operator=(const ScreenRotationAnimation&) = delete;
~ScreenRotationAnimation() override;
private:
// Implementation of ui::LayerAnimationElement:
void OnStart(ui::LayerAnimationDelegate* delegate) override;
bool OnProgress(double current,
ui::LayerAnimationDelegate* delegate) override;
void OnGetTarget(TargetValue* target) const override;
void OnAbort(ui::LayerAnimationDelegate* delegate) override;
// The root InterpolatedTransform that defines the animation.
std::unique_ptr<ui::InterpolatedTransform> interpolated_transform_;
// The Tween type to use for the animation.
gfx::Tween::Type tween_type_;
// The initial layer opacity to start the animation with.
float initial_opacity_;
// The target layer opacity to end the animation with.
float target_opacity_;
};
} // namespace ash
#endif // ASH_ROTATOR_SCREEN_ROTATION_ANIMATION_H_
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