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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef UI_AURA_CLIENT_STACKING_CLIENT_H_ | 5 #ifndef UI_AURA_CLIENT_STACKING_CLIENT_H_ |
6 #define UI_AURA_CLIENT_STACKING_CLIENT_H_ | 6 #define UI_AURA_CLIENT_STACKING_CLIENT_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include "ui/aura/aura_export.h" | 9 #include "ui/aura/aura_export.h" |
10 | 10 |
11 namespace aura { | 11 namespace aura { |
12 | 12 |
13 class Window; | 13 class Window; |
14 | 14 |
15 // An interface implemented by an object that stacks windows. | 15 // An interface implemented by an object that stacks windows. |
16 class AURA_EXPORT StackingClient { | 16 class AURA_EXPORT StackingClient { |
17 public: | 17 public: |
18 virtual ~StackingClient() {} | 18 virtual ~StackingClient() {} |
19 | 19 |
20 // Called by the Window when its parent is set to NULL. The delegate is given | 20 // Called by the Window when its parent is set to NULL. The delegate is given |
21 // an opportunity to inspect the window and add it to a default parent window | 21 // an opportunity to inspect the window and add it to a default parent window |
22 // of its choosing. | 22 // of its choosing. |
23 virtual void AddChildToDefaultParent(Window* window) = 0; | 23 virtual void AddChildToDefaultParent(Window* window) = 0; |
24 | |
25 // Returns true if |window| can be activated or deactivated. | |
26 // A window manager typically defines some notion of "top level window" that | |
27 // supports activation/deactivation. | |
28 virtual bool CanActivateWindow(Window* window) const = 0; | |
29 | |
30 // Returns the window that should be activated other than |ignore|. | |
31 virtual Window* GetTopmostWindowToActivate(Window* ignore) const = 0; | |
32 }; | 24 }; |
33 | 25 |
34 } // namespace aura | 26 } // namespace aura |
35 | 27 |
36 #endif // UI_AURA_CLIENT_STACKING_CLIENT_H_ | 28 #endif // UI_AURA_CLIENT_STACKING_CLIENT_H_ |
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