OLD | NEW |
| (Empty) |
1 // Copyright (c) 2012 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 UI_BASE_ANIMATION_SLIDE_ANIMATION_H_ | |
6 #define UI_BASE_ANIMATION_SLIDE_ANIMATION_H_ | |
7 | |
8 #include "ui/base/animation/linear_animation.h" | |
9 #include "ui/base/animation/tween.h" | |
10 | |
11 namespace ui { | |
12 | |
13 // Slide Animation | |
14 // | |
15 // Used for reversible animations and as a general helper class. Typical usage: | |
16 // | |
17 // #include "ui/base/animation/slide_animation.h" | |
18 // | |
19 // class MyClass : public AnimationDelegate { | |
20 // public: | |
21 // MyClass() { | |
22 // animation_.reset(new SlideAnimation(this)); | |
23 // animation_->SetSlideDuration(500); | |
24 // } | |
25 // void OnMouseOver() { | |
26 // animation_->Show(); | |
27 // } | |
28 // void OnMouseOut() { | |
29 // animation_->Hide(); | |
30 // } | |
31 // void AnimationProgressed(const Animation* animation) { | |
32 // if (animation == animation_.get()) { | |
33 // Layout(); | |
34 // SchedulePaint(); | |
35 // } else if (animation == other_animation_.get()) { | |
36 // ... | |
37 // } | |
38 // } | |
39 // void Layout() { | |
40 // if (animation_->is_animating()) { | |
41 // hover_image_.SetOpacity(animation_->GetCurrentValue()); | |
42 // } | |
43 // } | |
44 // private: | |
45 // scoped_ptr<SlideAnimation> animation_; | |
46 // } | |
47 class UI_EXPORT SlideAnimation : public LinearAnimation { | |
48 public: | |
49 explicit SlideAnimation(AnimationDelegate* target); | |
50 virtual ~SlideAnimation(); | |
51 | |
52 // Set the animation back to the 0 state. | |
53 virtual void Reset(); | |
54 virtual void Reset(double value); | |
55 | |
56 // Begin a showing animation or reverse a hiding animation in progress. | |
57 virtual void Show(); | |
58 | |
59 // Begin a hiding animation or reverse a showing animation in progress. | |
60 virtual void Hide(); | |
61 | |
62 // Sets the time a slide will take. Note that this isn't actually | |
63 // the amount of time an animation will take as the current value of | |
64 // the slide is considered. | |
65 virtual void SetSlideDuration(int duration); | |
66 int GetSlideDuration() const { return slide_duration_; } | |
67 void SetTweenType(Tween::Type tween_type) { tween_type_ = tween_type; } | |
68 | |
69 virtual double GetCurrentValue() const OVERRIDE; | |
70 bool IsShowing() const { return showing_; } | |
71 bool IsClosing() const { return !showing_ && value_end_ < value_current_; } | |
72 | |
73 class TestApi; | |
74 | |
75 private: | |
76 // Overridden from Animation. | |
77 virtual void AnimateToState(double state) OVERRIDE; | |
78 | |
79 AnimationDelegate* target_; | |
80 | |
81 Tween::Type tween_type_; | |
82 | |
83 // Used to determine which way the animation is going. | |
84 bool showing_; | |
85 | |
86 // Animation values. These are a layer on top of Animation::state_ to | |
87 // provide the reversability. | |
88 double value_start_; | |
89 double value_end_; | |
90 double value_current_; | |
91 | |
92 // How long a hover in/out animation will last for. This defaults to | |
93 // kHoverFadeDurationMS, but can be overridden with SetDuration. | |
94 int slide_duration_; | |
95 | |
96 DISALLOW_COPY_AND_ASSIGN(SlideAnimation); | |
97 }; | |
98 | |
99 } // namespace ui | |
100 | |
101 #endif // UI_BASE_ANIMATION_SLIDE_ANIMATION_H_ | |
OLD | NEW |