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| 1 // Copyright 2017 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef CHROME_BROWSER_UI_VIEWS_TOOLBAR_APP_MENU_ANIMATION_H_ | |
| 6 #define CHROME_BROWSER_UI_VIEWS_TOOLBAR_APP_MENU_ANIMATION_H_ | |
| 7 | |
| 8 #include "base/time/time.h" | |
| 9 #include "third_party/skia/include/core/SkColor.h" | |
| 10 #include "ui/gfx/animation/animation_delegate.h" | |
| 11 #include "ui/gfx/animation/slide_animation.h" | |
| 12 | |
| 13 namespace gfx { | |
| 14 class Canvas; | |
| 15 class PointF; | |
| 16 } // namespace gfx | |
| 17 | |
| 18 class AppMenuButton; | |
| 19 | |
| 20 // This class is used for animating and drawing the app menu icon. | |
| 21 class AppMenuAnimation : public gfx::AnimationDelegate { | |
| 22 public: | |
| 23 AppMenuAnimation(AppMenuButton* owner, SkColor initial_color); | |
| 24 | |
| 25 ~AppMenuAnimation() override; | |
| 26 | |
| 27 // Paints the app menu icon. | |
| 28 void PaintAppMenu(gfx::Canvas* canvas, const gfx::Rect& bounds); | |
| 29 | |
| 30 void set_target_color(SkColor target_color) { target_color_ = target_color; } | |
| 31 | |
| 32 // Starts the animation if it's not already running. | |
| 33 void StartAnimation(); | |
| 34 | |
| 35 // gfx::AnimationDelegate: | |
| 36 void AnimationEnded(const gfx::Animation* animation) override; | |
| 37 void AnimationProgressed(const gfx::Animation* animation) override; | |
| 38 | |
| 39 private: | |
| 40 // This class is used to represent and paint a dot on the app menu. | |
| 41 class AppMenuDot { | |
| 42 public: | |
| 43 AppMenuDot(base::TimeDelta delay, | |
| 44 float width_open_interval, | |
| 45 float stroke_open_interval); | |
| 46 | |
| 47 // Paints the dot on the given |canvas| according to the progress of | |
| 48 // |animation|. The size of the dot is calculated to fit in |bounds|. | |
| 49 // |center_point| is the dot's position on the canvas. The dot's color is | |
| 50 // a transition from |start_color| to |final_color|. | |
| 51 void Paint(const gfx::PointF& center_point, | |
| 52 SkColor start_color, | |
| 53 SkColor final_color, | |
| 54 gfx::Canvas* canvas, | |
| 55 const gfx::Rect& bounds, | |
| 56 const gfx::SlideAnimation* animation); | |
| 57 | |
| 58 private: | |
| 59 // The delay before the dot starts animating in ms. | |
| 60 const base::TimeDelta delay_; | |
| 61 | |
| 62 // The percentage of the overall animation duration it takes to animate the | |
| 63 // width and stroke to their open state. | |
| 64 const float width_open_interval_; | |
| 65 const float stroke_open_interval_; | |
| 66 | |
| 67 DISALLOW_COPY_AND_ASSIGN(AppMenuDot); | |
| 68 }; | |
| 69 | |
| 70 AppMenuButton* const owner_; | |
| 71 | |
| 72 std::unique_ptr<gfx::SlideAnimation> animation_; | |
| 73 | |
| 74 AppMenuDot bottom_dot_; | |
| 75 AppMenuDot middle_dot_; | |
| 76 AppMenuDot top_dot_; | |
| 77 | |
| 78 // The starting color of the dots. The animation is expected to transition | |
| 79 // from this color to |target_color_|. | |
| 80 SkColor start_color_; | |
| 81 | |
| 82 // The severity color of the dots. This is final color at the end of the | |
| 83 // animation. | |
| 84 SkColor target_color_; | |
| 85 | |
| 86 DISALLOW_COPY_AND_ASSIGN(AppMenuAnimation); | |
| 87 }; | |
| 88 | |
| 89 #endif // CHROME_BROWSER_UI_VIEWS_TOOLBAR_APP_MENU_ANIMATION_H_ | |
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Chromium Code Reviews
Issue 2858313002:
Refactored AppMenuAnimation (Closed)
