| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef UI_BASE_X_ROOT_WINDOW_PROPERTY_WATCHER_X_H_ |
| #define UI_BASE_X_ROOT_WINDOW_PROPERTY_WATCHER_X_H_ |
| |
| #include <gdk/gdk.h> |
| |
| #include "base/basictypes.h" |
| #include "ui/base/gtk/gtk_signal.h" |
| #include "ui/base/ui_export.h" |
| |
| template <typename T> struct DefaultSingletonTraits; |
| |
| namespace ui { |
| |
| namespace internal { |
| |
| // This class keeps track of changes to properties on the root window. This is |
| // not to be used directly. Implement a watcher for the specific property you're |
| // interested in. |
| class RootWindowPropertyWatcherX { |
| public: |
| static RootWindowPropertyWatcherX* GetInstance(); |
| |
| private: |
| friend struct DefaultSingletonTraits<RootWindowPropertyWatcherX>; |
| |
| RootWindowPropertyWatcherX(); |
| ~RootWindowPropertyWatcherX(); |
| |
| // Callback for PropertyChange XEvents. |
| CHROMEG_CALLBACK_1(RootWindowPropertyWatcherX, GdkFilterReturn, |
| OnWindowXEvent, GdkXEvent*, GdkEvent*); |
| |
| DISALLOW_COPY_AND_ASSIGN(RootWindowPropertyWatcherX); |
| }; |
| |
| } // namespace internal |
| |
| } // namespace ui |
| |
| #endif // UI_BASE_X_ROOT_WINDOW_PROPERTY_WATCHER_X_H_ |