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 namespace internal { 16 class AlwaysOnTopController; 17 } 18 19 class ASH_EXPORT StackingController : public aura::client::WindowTreeClient { 20 public: 21 StackingController(); 22 virtual ~StackingController(); 23 24 // Overridden from aura::client::WindowTreeClient: 25 virtual aura::Window* GetDefaultParent(aura::Window* context, 26 aura::Window* window, 27 const gfx::Rect& bounds) OVERRIDE; 28 29 private: 30 // Returns corresponding system modal container for a modal window. 31 // If screen lock is not active, all system modal windows are placed into the 32 // normal modal container. 33 // Otherwise those that originate from LockScreen container and above are 34 // placed in the screen lock modal container. 35 aura::Window* GetSystemModalContainer(aura::Window* root, 36 aura::Window* window) const; 37 38 DISALLOW_COPY_AND_ASSIGN(StackingController); 39 }; 40 41 } // namespace ash 42 43 #endif // ASH_WM_STACKING_CONTROLLER_H_ 44