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// Copyright 2014 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_AURA_WINDOW_TREE_HOST_OBSERVER_H_
#define UI_AURA_WINDOW_TREE_HOST_OBSERVER_H_
#include "ui/aura/aura_export.h"
namespace gfx {
class Point;
}
namespace aura {
class Window;
class WindowTreeHost;
class AURA_EXPORT WindowTreeHostObserver {
public:
// Called when the host's client size has changed.
virtual void OnHostResized(const WindowTreeHost* host) {}
// Called when the host is moved on screen.
virtual void OnHostMoved(const WindowTreeHost* host,
const gfx::Point& new_origin) {}
// Called when the native window system sends the host request to close.
virtual void OnHostCloseRequested(const WindowTreeHost* host) {}
protected:
virtual ~WindowTreeHostObserver() {}
};
} // namespace aura
#endif // UI_AURA_WINDOW_TREE_HOST_OBSERVER_H_
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