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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_COMMON_WM_ALWAYS_ON_TOP_CONTROLLER_H_ | |
6 #define ASH_COMMON_WM_ALWAYS_ON_TOP_CONTROLLER_H_ | |
7 | |
8 #include <memory> | |
9 | |
10 #include "ash/ash_export.h" | |
11 #include "base/macros.h" | |
12 #include "ui/aura/window_observer.h" | |
13 | |
14 namespace ash { | |
15 | |
16 class WmWindow; | |
17 class WorkspaceLayoutManager; | |
18 | |
19 // AlwaysOnTopController puts window into proper containers based on its | |
20 // 'AlwaysOnTop' property. That is, putting a window into the worskpace | |
21 // container if its "AlwaysOnTop" property is false. Otherwise, put it in | |
22 // |always_on_top_container_|. | |
23 class ASH_EXPORT AlwaysOnTopController : public aura::WindowObserver { | |
24 public: | |
25 explicit AlwaysOnTopController(WmWindow* viewport); | |
26 ~AlwaysOnTopController() override; | |
27 | |
28 // Gets container for given |window| based on its "AlwaysOnTop" property. | |
29 WmWindow* GetContainer(WmWindow* window) const; | |
30 | |
31 WorkspaceLayoutManager* GetLayoutManager() const; | |
32 | |
33 void SetLayoutManagerForTest( | |
34 std::unique_ptr<WorkspaceLayoutManager> layout_manager); | |
35 | |
36 private: | |
37 // Overridden from aura::WindowObserver: | |
38 void OnWindowHierarchyChanged(const HierarchyChangeParams& params) override; | |
39 void OnWindowPropertyChanged(aura::Window* window, | |
40 const void* key, | |
41 intptr_t old) override; | |
42 void OnWindowDestroying(aura::Window* window) override; | |
43 | |
44 WmWindow* always_on_top_container_; | |
45 | |
46 DISALLOW_COPY_AND_ASSIGN(AlwaysOnTopController); | |
47 }; | |
48 | |
49 } // namepsace ash | |
50 | |
51 #endif // ASH_COMMON_WM_ALWAYS_ON_TOP_CONTROLLER_H_ | |
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