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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef UI_VIEWS_CONTROLS_THROBBER_H_ | 5 #ifndef UI_VIEWS_CONTROLS_THROBBER_H_ |
| 6 #define UI_VIEWS_CONTROLS_THROBBER_H_ | 6 #define UI_VIEWS_CONTROLS_THROBBER_H_ |
| 7 #pragma once | 7 #pragma once |
| 8 | 8 |
| 9 #include "base/basictypes.h" | 9 #include "base/basictypes.h" |
| 10 #include "base/compiler_specific.h" | 10 #include "base/compiler_specific.h" |
| 11 #include "base/time.h" | 11 #include "base/time.h" |
| 12 #include "base/timer.h" | 12 #include "base/timer.h" |
| 13 #include "ui/views/view.h" | 13 #include "ui/views/view.h" |
| 14 | 14 |
| 15 class SkBitmap; | 15 namespace gfx { |
| 16 class ImageSkia; |
| 17 } |
| 16 | 18 |
| 17 namespace views { | 19 namespace views { |
| 18 | 20 |
| 19 // Throbbers display an animation, usually used as a status indicator. | 21 // Throbbers display an animation, usually used as a status indicator. |
| 20 | 22 |
| 21 class VIEWS_EXPORT Throbber : public View { | 23 class VIEWS_EXPORT Throbber : public View { |
| 22 public: | 24 public: |
| 23 // |frame_time_ms| is the amount of time that should elapse between frames | 25 // |frame_time_ms| is the amount of time that should elapse between frames |
| 24 // (in milliseconds) | 26 // (in milliseconds) |
| 25 // If |paint_while_stopped| is false, this view will be invisible when not | 27 // If |paint_while_stopped| is false, this view will be invisible when not |
| 26 // running. | 28 // running. |
| 27 Throbber(int frame_time_ms, bool paint_while_stopped); | 29 Throbber(int frame_time_ms, bool paint_while_stopped); |
| 28 Throbber(int frame_time_ms, bool paint_while_stopped, SkBitmap* frames); | 30 Throbber(int frame_time_ms, bool paint_while_stopped, gfx::ImageSkia* frames); |
| 29 virtual ~Throbber(); | 31 virtual ~Throbber(); |
| 30 | 32 |
| 31 // Start and stop the throbber animation | 33 // Start and stop the throbber animation |
| 32 virtual void Start(); | 34 virtual void Start(); |
| 33 virtual void Stop(); | 35 virtual void Stop(); |
| 34 | 36 |
| 35 // Set custom throbber frames. Otherwise IDR_THROBBER is loaded. | 37 // Set custom throbber frames. Otherwise IDR_THROBBER is loaded. |
| 36 void SetFrames(const SkBitmap* frames); | 38 void SetFrames(const gfx::ImageSkia* frames); |
| 37 | 39 |
| 38 // Overridden from View: | 40 // Overridden from View: |
| 39 virtual gfx::Size GetPreferredSize() OVERRIDE; | 41 virtual gfx::Size GetPreferredSize() OVERRIDE; |
| 40 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE; | 42 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE; |
| 41 | 43 |
| 42 protected: | 44 protected: |
| 43 // Specifies whether the throbber is currently animating or not | 45 // Specifies whether the throbber is currently animating or not |
| 44 bool running_; | 46 bool running_; |
| 45 | 47 |
| 46 private: | 48 private: |
| 47 void Run(); | 49 void Run(); |
| 48 | 50 |
| 49 bool paint_while_stopped_; | 51 bool paint_while_stopped_; |
| 50 int frame_count_; // How many frames we have. | 52 int frame_count_; // How many frames we have. |
| 51 base::Time start_time_; // Time when Start was called. | 53 base::Time start_time_; // Time when Start was called. |
| 52 const SkBitmap* frames_; // Frames bitmaps. | 54 const gfx::ImageSkia* frames_; // Frames images. |
| 53 base::TimeDelta frame_time_; // How long one frame is displayed. | 55 base::TimeDelta frame_time_; // How long one frame is displayed. |
| 54 base::RepeatingTimer<Throbber> timer_; // Used to schedule Run calls. | 56 base::RepeatingTimer<Throbber> timer_; // Used to schedule Run calls. |
| 55 | 57 |
| 56 DISALLOW_COPY_AND_ASSIGN(Throbber); | 58 DISALLOW_COPY_AND_ASSIGN(Throbber); |
| 57 }; | 59 }; |
| 58 | 60 |
| 59 // A SmoothedThrobber is a throbber that is representing potentially short | 61 // A SmoothedThrobber is a throbber that is representing potentially short |
| 60 // and nonoverlapping bursts of work. SmoothedThrobber ignores small | 62 // and nonoverlapping bursts of work. SmoothedThrobber ignores small |
| 61 // pauses in the work stops and starts, and only starts its throbber after | 63 // pauses in the work stops and starts, and only starts its throbber after |
| 62 // a small amount of work time has passed. | 64 // a small amount of work time has passed. |
| 63 class VIEWS_EXPORT SmoothedThrobber : public Throbber { | 65 class VIEWS_EXPORT SmoothedThrobber : public Throbber { |
| 64 public: | 66 public: |
| 65 explicit SmoothedThrobber(int frame_delay_ms); | 67 explicit SmoothedThrobber(int frame_delay_ms); |
| 66 SmoothedThrobber(int frame_delay_ms, SkBitmap* frames); | 68 SmoothedThrobber(int frame_delay_ms, gfx::ImageSkia* frames); |
| 67 virtual ~SmoothedThrobber(); | 69 virtual ~SmoothedThrobber(); |
| 68 | 70 |
| 69 virtual void Start() OVERRIDE; | 71 virtual void Start() OVERRIDE; |
| 70 virtual void Stop() OVERRIDE; | 72 virtual void Stop() OVERRIDE; |
| 71 | 73 |
| 72 void set_start_delay_ms(int value) { start_delay_ms_ = value; } | 74 void set_start_delay_ms(int value) { start_delay_ms_ = value; } |
| 73 void set_stop_delay_ms(int value) { stop_delay_ms_ = value; } | 75 void set_stop_delay_ms(int value) { stop_delay_ms_ = value; } |
| 74 | 76 |
| 75 private: | 77 private: |
| 76 // Called when the startup-delay timer fires | 78 // Called when the startup-delay timer fires |
| (...skipping 32 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 109 // Overridden from Throbber: | 111 // Overridden from Throbber: |
| 110 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE; | 112 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE; |
| 111 | 113 |
| 112 private: | 114 private: |
| 113 static const int kFrameTimeMs = 30; | 115 static const int kFrameTimeMs = 30; |
| 114 | 116 |
| 115 // Whether or not we should display a checkmark. | 117 // Whether or not we should display a checkmark. |
| 116 bool checked_; | 118 bool checked_; |
| 117 | 119 |
| 118 // The checkmark image. | 120 // The checkmark image. |
| 119 const SkBitmap* checkmark_; | 121 const gfx::ImageSkia* checkmark_; |
| 120 | 122 |
| 121 DISALLOW_COPY_AND_ASSIGN(CheckmarkThrobber); | 123 DISALLOW_COPY_AND_ASSIGN(CheckmarkThrobber); |
| 122 }; | 124 }; |
| 123 | 125 |
| 124 } // namespace views | 126 } // namespace views |
| 125 | 127 |
| 126 #endif // UI_VIEWS_CONTROLS_THROBBER_H_ | 128 #endif // UI_VIEWS_CONTROLS_THROBBER_H_ |
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