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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_STACKING_CONTROLLER_H_
#define ASH_WM_STACKING_CONTROLLER_H_
#include "ash/ash_export.h"
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "ui/aura/client/window_tree_client.h"
namespace ash {
class AlwaysOnTopController;
class ASH_EXPORT StackingController : public aura::client::WindowTreeClient {
public:
StackingController();
~StackingController() override;
// Overridden from aura::client::WindowTreeClient:
aura::Window* GetDefaultParent(aura::Window* context,
aura::Window* window,
const gfx::Rect& bounds) override;
private:
// Returns corresponding system modal container for a modal window.
// If screen lock is not active, all system modal windows are placed into the
// normal modal container.
// Otherwise those that originate from LockScreen container and above are
// placed in the screen lock modal container.
aura::Window* GetSystemModalContainer(aura::Window* root,
aura::Window* window) const;
DISALLOW_COPY_AND_ASSIGN(StackingController);
};
} // namespace ash
#endif // ASH_WM_STACKING_CONTROLLER_H_
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