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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 // A helper class for animating the display of native widget content. | 5 // A helper class for animating the display of native widget content. |
| 6 // Currently only handle vertical sliding, but could be extended to handle | 6 // Currently only handle vertical sliding, but could be extended to handle |
| 7 // horizontal slides or other types of animations. | 7 // horizontal slides or other types of animations. |
| 8 // | 8 // |
| 9 // NOTE: This does not handle clipping. If you are not careful, you will | 9 // NOTE: This does not handle clipping. If you are not careful, you will |
| 10 // wind up with visibly overlapping widgets. If you need clipping, you can | 10 // wind up with visibly overlapping widgets. If you need clipping, you can |
| 11 // extend the constructor to take an option to give |fixed| its own GdkWindow | 11 // extend the constructor to take an option to give |fixed| its own GdkWindow |
| 12 // (via gtk_fixed_set_has_window). | 12 // (via gtk_fixed_set_has_window). |
| 13 | 13 |
| 14 #ifndef CHROME_BROWSER_UI_GTK_SLIDE_ANIMATOR_GTK_H_ | 14 #ifndef CHROME_BROWSER_UI_GTK_SLIDE_ANIMATOR_GTK_H_ |
| 15 #define CHROME_BROWSER_UI_GTK_SLIDE_ANIMATOR_GTK_H_ | 15 #define CHROME_BROWSER_UI_GTK_SLIDE_ANIMATOR_GTK_H_ |
| 16 #pragma once | 16 #pragma once |
| 17 | 17 |
| 18 #include <gtk/gtk.h> | 18 #include <gtk/gtk.h> |
| 19 | 19 |
| 20 #include "base/compiler_specific.h" |
| 20 #include "base/memory/scoped_ptr.h" | 21 #include "base/memory/scoped_ptr.h" |
| 21 #include "ui/base/animation/animation_delegate.h" | 22 #include "ui/base/animation/animation_delegate.h" |
| 22 #include "ui/base/gtk/owned_widget_gtk.h" | 23 #include "ui/base/gtk/owned_widget_gtk.h" |
| 23 | 24 |
| 24 namespace ui { | 25 namespace ui { |
| 25 class SlideAnimation; | 26 class SlideAnimation; |
| 26 } | 27 } |
| 27 | 28 |
| 28 class SlideAnimatorGtk : public ui::AnimationDelegate { | 29 class SlideAnimatorGtk : public ui::AnimationDelegate { |
| 29 public: | 30 public: |
| (...skipping 48 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 78 bool IsShowing(); | 79 bool IsShowing(); |
| 79 | 80 |
| 80 // Returns whether the widget is currently showing the close animation. | 81 // Returns whether the widget is currently showing the close animation. |
| 81 bool IsClosing(); | 82 bool IsClosing(); |
| 82 | 83 |
| 83 // Returns whether the widget is currently showing the open or close | 84 // Returns whether the widget is currently showing the open or close |
| 84 // animation. | 85 // animation. |
| 85 bool IsAnimating(); | 86 bool IsAnimating(); |
| 86 | 87 |
| 87 // ui::AnimationDelegate implementation. | 88 // ui::AnimationDelegate implementation. |
| 88 virtual void AnimationProgressed(const ui::Animation* animation); | 89 virtual void AnimationProgressed(const ui::Animation* animation) OVERRIDE; |
| 89 virtual void AnimationEnded(const ui::Animation* animation); | 90 virtual void AnimationEnded(const ui::Animation* animation) OVERRIDE; |
| 90 | 91 |
| 91 // Used during testing; disable or enable animations (default is enabled). | 92 // Used during testing; disable or enable animations (default is enabled). |
| 92 static void SetAnimationsForTesting(bool enable); | 93 static void SetAnimationsForTesting(bool enable); |
| 93 | 94 |
| 94 private: | 95 private: |
| 95 static void OnChildSizeAllocate(GtkWidget* child, | 96 static void OnChildSizeAllocate(GtkWidget* child, |
| 96 GtkAllocation* allocation, | 97 GtkAllocation* allocation, |
| 97 SlideAnimatorGtk* slider); | 98 SlideAnimatorGtk* slider); |
| 98 | 99 |
| 99 scoped_ptr<ui::SlideAnimation> animation_; | 100 scoped_ptr<ui::SlideAnimation> animation_; |
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| 114 // We need to move the child widget to (0, -height), but we don't know its | 115 // We need to move the child widget to (0, -height), but we don't know its |
| 115 // height until it has been allocated. This variable will be true until the | 116 // height until it has been allocated. This variable will be true until the |
| 116 // child widget has been allocated, at which point we will move it, and then | 117 // child widget has been allocated, at which point we will move it, and then |
| 117 // set this variable to false to indicate it should not be moved again. | 118 // set this variable to false to indicate it should not be moved again. |
| 118 bool child_needs_move_; | 119 bool child_needs_move_; |
| 119 | 120 |
| 120 static bool animations_enabled_; | 121 static bool animations_enabled_; |
| 121 }; | 122 }; |
| 122 | 123 |
| 123 #endif // CHROME_BROWSER_UI_GTK_SLIDE_ANIMATOR_GTK_H_ | 124 #endif // CHROME_BROWSER_UI_GTK_SLIDE_ANIMATOR_GTK_H_ |
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