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Side by Side Diff: ui/base/animation/throb_animation.h

Issue 23531053: ui/base/animation -> ui/gfx/animation (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Merge 2 trunk Created 7 years, 3 months ago
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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_THROB_ANIMATION_H_
6 #define UI_BASE_ANIMATION_THROB_ANIMATION_H_
7
8 #include "ui/base/animation/slide_animation.h"
9
10 namespace ui {
11
12 // A subclass of SlideAnimation that can continually slide. All of the Animation
13 // methods behave like that of SlideAnimation: transition to the next state.
14 // The StartThrobbing method causes the ThrobAnimation to cycle between hidden
15 // and shown for a set number of cycles.
16 //
17 // A ThrobAnimation has two durations: the duration used when behavior like
18 // a SlideAnimation, and the duration used when throbbing.
19 class UI_EXPORT ThrobAnimation : public SlideAnimation {
20 public:
21 explicit ThrobAnimation(AnimationDelegate* target);
22 virtual ~ThrobAnimation() {}
23
24 // Starts throbbing. cycles_til_stop gives the number of cycles to do before
25 // stopping. A negative value means "throb indefinitely".
26 void StartThrobbing(int cycles_til_stop);
27
28 // Sets the duration of the slide animation when throbbing.
29 void SetThrobDuration(int duration) { throb_duration_ = duration; }
30
31 // Overridden to reset to the slide duration.
32 virtual void Reset() OVERRIDE;
33 virtual void Reset(double value) OVERRIDE;
34 virtual void Show() OVERRIDE;
35 virtual void Hide() OVERRIDE;
36
37 // Overridden to maintain the slide duration.
38 virtual void SetSlideDuration(int duration) OVERRIDE;
39
40 // The number of cycles remaining until the animation stops.
41 void set_cycles_remaining(int value) { cycles_remaining_ = value; }
42 int cycles_remaining() const { return cycles_remaining_; }
43
44 protected:
45 // Overriden to continually throb (assuming we're throbbing).
46 virtual void Step(base::TimeTicks time_now) OVERRIDE;
47
48 private:
49 // Resets state such that we behave like SlideAnimation.
50 void ResetForSlide();
51
52 // Duration of the slide animation.
53 int slide_duration_;
54
55 // Duration of the slide animation when throbbing.
56 int throb_duration_;
57
58 // If throbbing, this is the number of cycles left.
59 int cycles_remaining_;
60
61 // Are we throbbing?
62 bool throbbing_;
63
64 DISALLOW_COPY_AND_ASSIGN(ThrobAnimation);
65 };
66
67 } // namespace ui
68
69 #endif // UI_BASE_ANIMATION_THROB_ANIMATION_H_
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