1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef ASH_WM_STACKING_CONTROLLER_H_
6 #define ASH_WM_STACKING_CONTROLLER_H_
8 #include "ash/ash_export.h"
9 #include "base/basictypes.h"
10 #include "base/compiler_specific.h"
11 #include "base/memory/scoped_ptr.h"
12 #include "ui/aura/client/window_tree_client.h"
15 class AlwaysOnTopController;
17 class ASH_EXPORT StackingController : public aura::client::WindowTreeClient {
20 ~StackingController() override;
22 // Overridden from aura::client::WindowTreeClient:
23 aura::Window* GetDefaultParent(aura::Window* context,
25 const gfx::Rect& bounds) override;
28 // Returns corresponding system modal container for a modal window.
29 // If screen lock is not active, all system modal windows are placed into the
30 // normal modal container.
31 // Otherwise those that originate from LockScreen container and above are
32 // placed in the screen lock modal container.
33 aura::Window* GetSystemModalContainer(aura::Window* root,
34 aura::Window* window) const;
36 DISALLOW_COPY_AND_ASSIGN(StackingController);
41 #endif // ASH_WM_STACKING_CONTROLLER_H_