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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_WIDGET_WIDGET_OBSERVER_H_ | 5 #ifndef UI_VIEWS_WIDGET_WIDGET_OBSERVER_H_ |
6 #define UI_VIEWS_WIDGET_WIDGET_OBSERVER_H_ | 6 #define UI_VIEWS_WIDGET_WIDGET_OBSERVER_H_ |
7 | 7 |
8 #include "ui/views/views_export.h" | 8 #include "ui/views/views_export.h" |
9 | 9 |
10 namespace views { | 10 namespace views { |
11 | 11 |
12 class Widget; | 12 class Widget; |
13 | 13 |
14 // Observers can listen to various events on the Widgets. | 14 // Observers can listen to various events on the Widgets. |
15 class VIEWS_EXPORT WidgetObserver { | 15 class VIEWS_EXPORT WidgetObserver { |
16 public: | 16 public: |
17 virtual void OnWidgetClosing(Widget* widget) {} | 17 virtual void OnWidgetClosing(Widget* widget) {} |
18 | 18 |
19 virtual void OnWidgetVisibilityChanged(Widget* widget, bool visible) {} | 19 virtual void OnWidgetVisibilityChanged(Widget* widget, bool visible) {} |
20 | 20 |
21 virtual void OnWidgetActivationChanged(Widget* widget, bool active) {} | 21 virtual void OnWidgetActivationChanged(Widget* widget, bool active) {} |
22 | 22 |
23 virtual void OnWidgetMoved(Widget* widget) {} | 23 virtual void OnWidgetMoved(Widget* widget) {} |
sky
2012/11/20 19:19:56
Can you combine these into OnWidgetBoundsChanged(W
csharp
2012/11/21 14:53:22
Done.
| |
24 | 24 |
25 virtual void OnWidgetSizeChanged(Widget* widget, const gfx::Size& size) {} | |
26 | |
25 protected: | 27 protected: |
26 virtual ~WidgetObserver() {} | 28 virtual ~WidgetObserver() {} |
27 }; | 29 }; |
28 | 30 |
29 } // namespace views | 31 } // namespace views |
30 | 32 |
31 #endif // UI_VIEWS_WIDGET_WIDGET_OBSERVER_H_ | 33 #endif // UI_VIEWS_WIDGET_WIDGET_OBSERVER_H_ |
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