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// 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 ASH_WM_ALWAYS_ON_TOP_CONTROLLER_H_
#define ASH_WM_ALWAYS_ON_TOP_CONTROLLER_H_
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "ui/aura/window_observer.h"
namespace aura {
class Window;
}
namespace ash {
namespace internal {
// AlwaysOnTopController puts window into proper containers based on its
// 'AlwaysOnTop' property. That is, putting a window into the worskpace
// container if its "AlwaysOnTop" property is false. Otherwise, put it in
// |always_on_top_container_|.
class AlwaysOnTopController : public aura::WindowObserver {
public:
AlwaysOnTopController();
virtual ~AlwaysOnTopController();
// Sets the container for always on top windows.
void SetAlwaysOnTopContainer(aura::Window* always_on_top_container);
// Gets container for given |window| based on its "AlwaysOnTop" property.
aura::Window* GetContainer(aura::Window* window) const;
private:
// Overridden from aura::WindowObserver:
virtual void OnWindowAdded(aura::Window* child) OVERRIDE;
virtual void OnWillRemoveWindow(aura::Window* child) OVERRIDE;
virtual void OnWindowPropertyChanged(aura::Window* window,
const void* key,
intptr_t old) OVERRIDE;
virtual void OnWindowDestroyed(aura::Window* window) OVERRIDE;
aura::Window* always_on_top_container_;
DISALLOW_COPY_AND_ASSIGN(AlwaysOnTopController);
};
} // namepsace internal
} // namepsace ash
#endif // ASH_WM_ALWAYS_ON_TOP_CONTROLLER_H_
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