| // Copyright 2017 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 ASH_LOGIN_UI_USER_SWITCH_FLIP_ANIMATION_H_ |
| #define ASH_LOGIN_UI_USER_SWITCH_FLIP_ANIMATION_H_ |
| |
| #include <stdint.h> |
| |
| #include <memory> |
| |
| #include "ash/ash_export.h" |
| #include "base/callback.h" |
| #include "base/time/time.h" |
| #include "ui/compositor/layer_animation_element.h" |
| #include "ui/gfx/animation/tween.h" |
| |
| namespace ui { |
| class InterpolatedTransform; |
| } // namespace ui |
| |
| namespace ash { |
| |
| // A LayerAnimationElement that will animate a layer by rotating it around the |
| // y-axis. |
| class ASH_EXPORT UserSwitchFlipAnimation : public ui::LayerAnimationElement { |
| public: |
| // Creates an animation element that will rotate from |start_degrees| to |
| // |midpoint_degrees| to |end_degrees| around the y axis, taking |duration| |
| // amount of time, animating using |tween_type|. |
| UserSwitchFlipAnimation(int width, |
| int start_degrees, |
| int midpoint_degrees, |
| int end_degrees, |
| base::TimeDelta duration, |
| gfx::Tween::Type tween_type, |
| base::OnceClosure on_midpoint); |
| |
| UserSwitchFlipAnimation(const UserSwitchFlipAnimation&) = delete; |
| UserSwitchFlipAnimation& operator=(const UserSwitchFlipAnimation&) = delete; |
| |
| ~UserSwitchFlipAnimation() override; |
| |
| // 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; |
| |
| private: |
| // The root InterpolatedTransform that defines the animation. |
| std::unique_ptr<ui::InterpolatedTransform> first_half_transform_; |
| std::unique_ptr<ui::InterpolatedTransform> second_half_transform_; |
| |
| // The tween type to use for the animation. |
| gfx::Tween::Type tween_type_; |
| |
| // Called when the animation is 50% complete. |
| base::OnceClosure on_midpoint_; |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_LOGIN_UI_USER_SWITCH_FLIP_ANIMATION_H_ |