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// 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_
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