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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 #ifndef UI_BASE_X_ACTIVE_WINDOW_WATCHER_X_H_ | 5 #ifndef UI_BASE_X_ACTIVE_WINDOW_WATCHER_X_H_ |
6 #define UI_BASE_X_ACTIVE_WINDOW_WATCHER_X_H_ | 6 #define UI_BASE_X_ACTIVE_WINDOW_WATCHER_X_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include <gdk/gdk.h> | 9 #include <gdk/gdk.h> |
10 | 10 |
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35 static void RemoveObserver(Observer* observer); | 35 static void RemoveObserver(Observer* observer); |
36 | 36 |
37 // Checks if the WM supports the active window property. Note that the return | 37 // Checks if the WM supports the active window property. Note that the return |
38 // value can change, especially during system startup. | 38 // value can change, especially during system startup. |
39 static bool WMSupportsActivation(); | 39 static bool WMSupportsActivation(); |
40 | 40 |
41 private: | 41 private: |
42 friend struct DefaultSingletonTraits<ActiveWindowWatcherX>; | 42 friend struct DefaultSingletonTraits<ActiveWindowWatcherX>; |
43 | 43 |
44 ActiveWindowWatcherX(); | 44 ActiveWindowWatcherX(); |
45 ~ActiveWindowWatcherX(); | 45 virtual ~ActiveWindowWatcherX(); |
46 | 46 |
47 void Init(); | 47 void Init(); |
48 | 48 |
49 // Sends a notification out through the NotificationService that the active | 49 // Sends a notification out through the NotificationService that the active |
50 // window has changed. | 50 // window has changed. |
51 void NotifyActiveWindowChanged(); | 51 void NotifyActiveWindowChanged(); |
52 | 52 |
53 // Callback for PropertyChange XEvents. | 53 // Callback for PropertyChange XEvents. |
54 CHROMEG_CALLBACK_1(ActiveWindowWatcherX, GdkFilterReturn, | 54 CHROMEG_CALLBACK_1(ActiveWindowWatcherX, GdkFilterReturn, |
55 OnWindowXEvent, GdkXEvent*, GdkEvent*); | 55 OnWindowXEvent, GdkXEvent*, GdkEvent*); |
56 | 56 |
57 ObserverList<Observer> observers_; | 57 ObserverList<Observer> observers_; |
58 | 58 |
59 DISALLOW_COPY_AND_ASSIGN(ActiveWindowWatcherX); | 59 DISALLOW_COPY_AND_ASSIGN(ActiveWindowWatcherX); |
60 }; | 60 }; |
61 | 61 |
62 } // namespace ui | 62 } // namespace ui |
63 | 63 |
64 #endif // UI_BASE_X_ACTIVE_WINDOW_WATCHER_X_H_ | 64 #endif // UI_BASE_X_ACTIVE_WINDOW_WATCHER_X_H_ |
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