| // Copyright 2021 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_SYSTEM_HOLDING_SPACE_HOLDING_SPACE_PROGRESS_RING_ANIMATION_H_ |
| #define ASH_SYSTEM_HOLDING_SPACE_HOLDING_SPACE_PROGRESS_RING_ANIMATION_H_ |
| |
| #include <memory> |
| |
| #include "ash/ash_export.h" |
| #include "ash/system/holding_space/holding_space_progress_indicator_animation.h" |
| |
| namespace ash { |
| |
| // An animation for a `HoldingSpaceProgressIndicator` to be painted in lieu of |
| // the determinate progress ring that would otherwise be painted. |
| class ASH_EXPORT HoldingSpaceProgressRingAnimation |
| : public HoldingSpaceProgressIndicatorAnimation { |
| public: |
| enum class Type { |
| kIndeterminate, // See `HoldingSpaceProgressRingIndeterminateAnimation`. |
| kPulse, // See `HoldingSpaceProgressRingPulseAnimation`. |
| }; |
| |
| HoldingSpaceProgressRingAnimation(const HoldingSpaceProgressRingAnimation&) = |
| delete; |
| HoldingSpaceProgressRingAnimation& operator=( |
| const HoldingSpaceProgressRingAnimation&) = delete; |
| ~HoldingSpaceProgressRingAnimation() override; |
| |
| // Returns a created progress ring animation of the specified `type`. |
| static std::unique_ptr<HoldingSpaceProgressRingAnimation> CreateOfType( |
| Type type); |
| |
| // Returns the specific type of this animation. |
| Type type() const { return type_; } |
| |
| // Returns animatable properties. |
| float start_position() const { return start_position_; } |
| float end_position() const { return end_position_; } |
| float opacity() const { return opacity_; } |
| |
| protected: |
| HoldingSpaceProgressRingAnimation(Type type, |
| base::TimeDelta duration, |
| bool is_cyclic); |
| |
| // Implementing classes should update any desired animatable properties as |
| // appropriate for the specified animation `fraction`. |
| virtual void UpdateAnimatableProperties(double fraction, |
| float* start_position, |
| float* end_position, |
| float* opacity) = 0; |
| |
| private: |
| // HoldingSpaceProgressIndicatorAnimation: |
| void UpdateAnimatableProperties(double fraction) override; |
| |
| // The specific type of this animation. |
| const Type type_; |
| |
| // Animatable properties. |
| float start_position_ = 0.f; |
| float end_position_ = 1.f; |
| float opacity_ = 1.f; |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_SYSTEM_HOLDING_SPACE_HOLDING_SPACE_PROGRESS_RING_ANIMATION_H_ |