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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 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 ASH_COMMON_WM_DISPLAY_OBSERVER_H_ | 5 #ifndef ASH_WM_DISPLAY_OBSERVER_H_ |
6 #define ASH_COMMON_WM_DISPLAY_OBSERVER_H_ | 6 #define ASH_WM_DISPLAY_OBSERVER_H_ |
7 | 7 |
8 #include "ash/ash_export.h" | 8 #include "ash/ash_export.h" |
9 | 9 |
10 namespace ash { | 10 namespace ash { |
11 | 11 |
12 // Used to track changes in display configuration. | 12 // Used to track changes in display configuration. |
13 class ASH_EXPORT WmDisplayObserver { | 13 class ASH_EXPORT WmDisplayObserver { |
14 public: | 14 public: |
15 // Called prior to the display configuration changing. | 15 // Called prior to the display configuration changing. |
16 virtual void OnDisplayConfigurationChanging() {} | 16 virtual void OnDisplayConfigurationChanging() {} |
17 | 17 |
18 // Called after the display configure changed. | 18 // Called after the display configure changed. |
19 virtual void OnDisplayConfigurationChanged() {} | 19 virtual void OnDisplayConfigurationChanged() {} |
20 | 20 |
21 protected: | 21 protected: |
22 virtual ~WmDisplayObserver() {} | 22 virtual ~WmDisplayObserver() {} |
23 }; | 23 }; |
24 | 24 |
25 } // namespace ash | 25 } // namespace ash |
26 | 26 |
27 #endif // ASH_COMMON_WM_DISPLAY_OBSERVER_H_ | 27 #endif // ASH_WM_DISPLAY_OBSERVER_H_ |
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