| // Copyright 2013 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_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_WINDOW_TREE_HOST_OBSERVER_X11_H_ |
| #define UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_WINDOW_TREE_HOST_OBSERVER_X11_H_ |
| |
| #include "ui/views/views_export.h" |
| |
| namespace views { |
| |
| // Allows for the observation of lower level window events. |
| class VIEWS_EXPORT DesktopWindowTreeHostObserverX11 { |
| public: |
| virtual ~DesktopWindowTreeHostObserverX11() {} |
| |
| // Called after we receive a MapNotify event (the X11 server has allocated |
| // resources for it). |
| virtual void OnWindowMapped(unsigned long xid) = 0; |
| |
| // Called after we receive an UnmapNotify event (the X11 server has freed |
| // resources for it). |
| virtual void OnWindowUnmapped(unsigned long xid) = 0; |
| }; |
| |
| } // namespace views |
| |
| #endif // UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_WINDOW_TREE_HOST_OBSERVER_X11_H_ |
| |