1 // Copyright 2014 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 ATHENA_WM_PUBLIC_WINDOW_LIST_PROVIDER_H_ 6 #define ATHENA_WM_PUBLIC_WINDOW_LIST_PROVIDER_H_ 7 8 #include "athena/athena_export.h" 9 #include "ui/aura/window.h" 10 11 namespace athena { 12 13 class WindowListProviderObserver; 14 15 // Interface for an ordered list of aura::Window objects. 16 // Note that lists returned by GetCurrentWindowList() will not change if any of 17 // the other member functions will be called later. 18 class ATHENA_EXPORT WindowListProvider { 19 public: 20 virtual ~WindowListProvider() {} 21 22 // Adding/removing an observer to status changes. 23 virtual void AddObserver(WindowListProviderObserver* observer) = 0; 24 virtual void RemoveObserver(WindowListProviderObserver* observer) = 0; 25 26 // Returns an ordered list of the current window configuration. 27 virtual const aura::Window::Windows& GetWindowList() const = 0; 28 29 // Returns true if the |window| is part of the list. 30 virtual bool IsWindowInList(aura::Window* window) const = 0; 31 32 // Returns true if the given window is a window which can be handled by the 33 // WindowListProvider. 34 virtual bool IsValidWindow(aura::Window* window) const = 0; 35 36 // Stacks a given |window| in direct front of a |reference_window|. 37 // Note: The |window| and |reference_window| has to be in the list already. 38 virtual void StackWindowFrontOf(aura::Window* window, 39 aura::Window* reference_window) = 0; 40 41 // Stacks a given |window| directly behind a |reference_window|. 42 // Note: The |window| and |reference_window| has to be in the list already. 43 virtual void StackWindowBehindTo(aura::Window* window, 44 aura::Window* reference_window) = 0; 45 }; 46 47 } // namespace athena 48 49 #endif // ATHENA_WM_PUBLIC_WINDOW_LIST_PROVIDER_H_ 50
