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_ALWAYS_ON_TOP_CONTROLLER_H_ 6 #define ASH_WM_ALWAYS_ON_TOP_CONTROLLER_H_ 7 8 #include "base/basictypes.h" 9 #include "base/compiler_specific.h" 10 #include "ui/aura/window_observer.h" 11 12 namespace aura { 13 class Window; 14 } 15 16 namespace ash { 17 18 // AlwaysOnTopController puts window into proper containers based on its 19 // 'AlwaysOnTop' property. That is, putting a window into the worskpace 20 // container if its "AlwaysOnTop" property is false. Otherwise, put it in 21 // |always_on_top_container_|. 22 class AlwaysOnTopController : public aura::WindowObserver { 23 public: 24 AlwaysOnTopController(); 25 virtual ~AlwaysOnTopController(); 26 27 // Sets the container for always on top windows. 28 void SetAlwaysOnTopContainer(aura::Window* always_on_top_container); 29 30 // Gets container for given |window| based on its "AlwaysOnTop" property. 31 aura::Window* GetContainer(aura::Window* window) const; 32 33 private: 34 // Overridden from aura::WindowObserver: 35 virtual void OnWindowAdded(aura::Window* child) OVERRIDE; 36 virtual void OnWillRemoveWindow(aura::Window* child) OVERRIDE; 37 virtual void OnWindowPropertyChanged(aura::Window* window, 38 const void* key, 39 intptr_t old) OVERRIDE; 40 virtual void OnWindowDestroyed(aura::Window* window) OVERRIDE; 41 42 aura::Window* always_on_top_container_; 43 44 DISALLOW_COPY_AND_ASSIGN(AlwaysOnTopController); 45 }; 46 47 } // namepsace ash 48 49 #endif // ASH_WM_ALWAYS_ON_TOP_CONTROLLER_H_ 50
