1 // Copyright (c) 2013 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 UI_AURA_CLIENT_WINDOW_STACKING_DELEGATE_H_ 6 #define UI_AURA_CLIENT_WINDOW_STACKING_DELEGATE_H_ 7 8 #include "base/basictypes.h" 9 #include "base/memory/scoped_ptr.h" 10 #include "ui/aura/aura_export.h" 11 #include "ui/aura/window.h" 12 13 namespace aura { 14 namespace client { 15 16 class AURA_EXPORT WindowStackingClient { 17 public: ~WindowStackingClient()18 virtual ~WindowStackingClient() {} 19 20 // Invoked from the various Window stacking functions. Allows the 21 // WindowStackingClient to alter the source, target and/or direction to stack. 22 virtual void AdjustStacking(Window** child, 23 Window** target, 24 Window::StackDirection* direction) = 0; 25 }; 26 27 // Sets/gets the WindowStackingClient. The setter takes ownership of |client|. 28 AURA_EXPORT void SetWindowStackingClient(WindowStackingClient* client); 29 AURA_EXPORT WindowStackingClient* GetWindowStackingClient(); 30 31 } // namespace client 32 } // namespace aura 33 34 #endif // UI_AURA_CLIENT_WINDOW_STACKING_DELEGATE_H_ 35