| // Copyright 2014 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 UI_ANDROID_EDGE_EFFECT_L_H_ |
| #define UI_ANDROID_EDGE_EFFECT_L_H_ |
| |
| #include <memory> |
| |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "ui/android/edge_effect_base.h" |
| #include "ui/android/ui_android_export.h" |
| #include "ui/gfx/geometry/rect_f.h" |
| #include "ui/gfx/geometry/size.h" |
| |
| namespace cc { |
| class Layer; |
| class UIResourceLayer; |
| } |
| |
| namespace ui { |
| class ResourceManager; |
| } |
| |
| namespace ui { |
| |
| // |EdgeEffectL| mirrors its Android L counterpart, EdgeEffect.java. |
| // Conscious tradeoffs were made to align this as closely as possible with the |
| // the original Android java version. |
| // All coordinates and dimensions are in device pixels. |
| class UI_ANDROID_EXPORT EdgeEffectL : public EdgeEffectBase { |
| public: |
| explicit EdgeEffectL(ui::ResourceManager* resource_manager); |
| ~EdgeEffectL() override; |
| |
| void Pull(base::TimeTicks current_time, |
| float delta_distance, |
| float displacement) override; |
| void Absorb(base::TimeTicks current_time, float velocity) override; |
| bool Update(base::TimeTicks current_time) override; |
| void Release(base::TimeTicks current_time) override; |
| |
| void Finish() override; |
| bool IsFinished() const override; |
| float GetAlpha() const override; |
| |
| void ApplyToLayers(Edge edge, |
| const gfx::SizeF& viewport_size, |
| float offset) override; |
| void SetParent(cc::Layer* parent) override; |
| |
| // Thread-safe trigger to load resources. |
| static void PreloadResources(ui::ResourceManager* resource_manager); |
| |
| private: |
| ui::ResourceManager* const resource_manager_; |
| |
| scoped_refptr<cc::UIResourceLayer> glow_; |
| |
| float glow_alpha_; |
| float glow_scale_y_; |
| |
| float glow_alpha_start_; |
| float glow_alpha_finish_; |
| float glow_scale_y_start_; |
| float glow_scale_y_finish_; |
| |
| gfx::RectF arc_rect_; |
| gfx::Size bounds_; |
| float displacement_; |
| float target_displacement_; |
| |
| base::TimeTicks start_time_; |
| base::TimeDelta duration_; |
| |
| State state_; |
| |
| float pull_distance_; |
| |
| DISALLOW_COPY_AND_ASSIGN(EdgeEffectL); |
| }; |
| |
| } // namespace ui |
| |
| #endif // UI_ANDROID_EDGE_EFFECT_L_H_ |