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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_AURA_WINDOW_OBSERVER_H_ | 5 #ifndef UI_AURA_WINDOW_OBSERVER_H_ |
6 #define UI_AURA_WINDOW_OBSERVER_H_ | 6 #define UI_AURA_WINDOW_OBSERVER_H_ |
7 | 7 |
8 #include "base/macros.h" | 8 #include "base/macros.h" |
9 #include "base/strings/string16.h" | 9 #include "base/strings/string16.h" |
10 #include "ui/aura/aura_export.h" | 10 #include "ui/aura/aura_export.h" |
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119 | 119 |
120 // Called when a Window is about to be removed from a root Window. | 120 // Called when a Window is about to be removed from a root Window. |
121 // |new_root| contains the new root Window if it is being added to one | 121 // |new_root| contains the new root Window if it is being added to one |
122 // atomically. | 122 // atomically. |
123 virtual void OnWindowRemovingFromRootWindow(Window* window, | 123 virtual void OnWindowRemovingFromRootWindow(Window* window, |
124 Window* new_root) {} | 124 Window* new_root) {} |
125 | 125 |
126 // Called when the window title has changed. | 126 // Called when the window title has changed. |
127 virtual void OnWindowTitleChanged(Window* window) {} | 127 virtual void OnWindowTitleChanged(Window* window) {} |
128 | 128 |
| 129 // Called when the app embedded in |window| disconnects (is no longer |
| 130 // embedded). |
| 131 virtual void OnEmbeddedAppDisconnected(Window* window); |
| 132 |
129 protected: | 133 protected: |
130 virtual ~WindowObserver(); | 134 virtual ~WindowObserver(); |
131 | 135 |
132 private: | 136 private: |
133 friend class Window; | 137 friend class Window; |
134 | 138 |
135 // Called when this is added as an observer on |window|. | 139 // Called when this is added as an observer on |window|. |
136 void OnObservingWindow(Window* window); | 140 void OnObservingWindow(Window* window); |
137 | 141 |
138 // Called when this is removed from the observers on |window|. | 142 // Called when this is removed from the observers on |window|. |
139 void OnUnobservingWindow(Window* window); | 143 void OnUnobservingWindow(Window* window); |
140 | 144 |
141 // Tracks the number of windows being observed to track down | 145 // Tracks the number of windows being observed to track down |
142 // http://crbug.com/365364. | 146 // http://crbug.com/365364. |
143 int observing_; | 147 int observing_; |
144 | 148 |
145 DISALLOW_COPY_AND_ASSIGN(WindowObserver); | 149 DISALLOW_COPY_AND_ASSIGN(WindowObserver); |
146 }; | 150 }; |
147 | 151 |
148 } // namespace aura | 152 } // namespace aura |
149 | 153 |
150 #endif // UI_AURA_WINDOW_OBSERVER_H_ | 154 #endif // UI_AURA_WINDOW_OBSERVER_H_ |
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