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. 4 5 #ifndef ASH_WM_STACKING_CONTROLLER_H_ 6 #define ASH_WM_STACKING_CONTROLLER_H_ 7 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" 13 14 namespace ash { 15 class AlwaysOnTopController; 16 17 class ASH_EXPORT StackingController : public aura::client::WindowTreeClient { 18 public: 19 StackingController(); 20 virtual ~StackingController(); 21 22 // Overridden from aura::client::WindowTreeClient: 23 virtual aura::Window* GetDefaultParent(aura::Window* context, 24 aura::Window* window, 25 const gfx::Rect& bounds) OVERRIDE; 26 27 private: 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; 35 36 DISALLOW_COPY_AND_ASSIGN(StackingController); 37 }; 38 39 } // namespace ash 40 41 #endif // ASH_WM_STACKING_CONTROLLER_H_ 42