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1 // Copyright 2016 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 #include "ash/common/wm/container_finder.h" | |
6 | |
7 #include "ash/common/session/session_state_delegate.h" | |
8 #include "ash/common/wm/always_on_top_controller.h" | |
9 #include "ash/common/wm/root_window_finder.h" | |
10 #include "ash/common/wm/window_state.h" | |
11 #include "ash/common/wm_shell.h" | |
12 #include "ash/common/wm_window.h" | |
13 #include "ash/public/cpp/shell_window_ids.h" | |
14 #include "ash/public/cpp/window_properties.h" | |
15 #include "ash/root_window_controller.h" | |
16 #include "ui/gfx/geometry/rect.h" | |
17 | |
18 namespace ash { | |
19 namespace wm { | |
20 namespace { | |
21 | |
22 WmWindow* FindContainerRoot(WmShell* shell, const gfx::Rect& bounds) { | |
23 if (bounds == gfx::Rect()) | |
24 return shell->GetRootWindowForNewWindows(); | |
25 return GetRootWindowMatching(bounds); | |
26 } | |
27 | |
28 bool HasTransientParentWindow(const WmWindow* window) { | |
29 return window->GetTransientParent() && | |
30 window->GetTransientParent()->GetType() != ui::wm::WINDOW_TYPE_UNKNOWN; | |
31 } | |
32 | |
33 WmWindow* GetSystemModalContainer(WmWindow* root, WmWindow* window) { | |
34 DCHECK(window->IsSystemModal()); | |
35 | |
36 // If screen lock is not active and user session is active, | |
37 // all modal windows are placed into the normal modal container. | |
38 // In case of missing transient parent (it could happen for alerts from | |
39 // background pages) assume that the window belongs to user session. | |
40 if (!window->GetShell()->GetSessionStateDelegate()->IsUserSessionBlocked() || | |
41 !window->GetTransientParent()) { | |
42 return root->GetChildByShellWindowId(kShellWindowId_SystemModalContainer); | |
43 } | |
44 | |
45 // Otherwise those that originate from LockScreen container and above are | |
46 // placed in the screen lock modal container. | |
47 int window_container_id = | |
48 window->GetTransientParent()->GetParent()->GetShellWindowId(); | |
49 if (window_container_id < kShellWindowId_LockScreenContainer) | |
50 return root->GetChildByShellWindowId(kShellWindowId_SystemModalContainer); | |
51 return root->GetChildByShellWindowId(kShellWindowId_LockSystemModalContainer); | |
52 } | |
53 | |
54 WmWindow* GetContainerFromAlwaysOnTopController(WmWindow* root, | |
55 WmWindow* window) { | |
56 return root->GetRootWindowController() | |
57 ->always_on_top_controller() | |
58 ->GetContainer(window); | |
59 } | |
60 | |
61 } // namespace | |
62 | |
63 WmWindow* GetContainerForWindow(WmWindow* window) { | |
64 WmWindow* parent = window->GetParent(); | |
65 // The first parent with an explicit shell window ID is the container. | |
66 while (parent && parent->GetShellWindowId() == kShellWindowId_Invalid) | |
67 parent = parent->GetParent(); | |
68 return parent; | |
69 } | |
70 | |
71 WmWindow* GetDefaultParent(WmWindow* context, | |
72 WmWindow* window, | |
73 const gfx::Rect& bounds) { | |
74 WmWindow* target_root = nullptr; | |
75 WmWindow* transient_parent = window->GetTransientParent(); | |
76 if (transient_parent) { | |
77 // Transient window should use the same root as its transient parent. | |
78 target_root = transient_parent->GetRootWindow(); | |
79 } else { | |
80 target_root = FindContainerRoot(context->GetShell(), bounds); | |
81 } | |
82 | |
83 switch (window->GetType()) { | |
84 case ui::wm::WINDOW_TYPE_NORMAL: | |
85 case ui::wm::WINDOW_TYPE_POPUP: | |
86 if (window->IsSystemModal()) | |
87 return GetSystemModalContainer(target_root, window); | |
88 if (HasTransientParentWindow(window)) | |
89 return GetContainerForWindow(window->GetTransientParent()); | |
90 return GetContainerFromAlwaysOnTopController(target_root, window); | |
91 case ui::wm::WINDOW_TYPE_CONTROL: | |
92 return target_root->GetChildByShellWindowId( | |
93 kShellWindowId_UnparentedControlContainer); | |
94 case ui::wm::WINDOW_TYPE_PANEL: | |
95 if (window->aura_window()->GetProperty(kPanelAttachedKey)) | |
96 return target_root->GetChildByShellWindowId( | |
97 kShellWindowId_PanelContainer); | |
98 return GetContainerFromAlwaysOnTopController(target_root, window); | |
99 case ui::wm::WINDOW_TYPE_MENU: | |
100 return target_root->GetChildByShellWindowId(kShellWindowId_MenuContainer); | |
101 case ui::wm::WINDOW_TYPE_TOOLTIP: | |
102 return target_root->GetChildByShellWindowId( | |
103 kShellWindowId_DragImageAndTooltipContainer); | |
104 default: | |
105 NOTREACHED() << "Window " << window->GetShellWindowId() | |
106 << " has unhandled type " << window->GetType(); | |
107 break; | |
108 } | |
109 return nullptr; | |
110 } | |
111 | |
112 std::vector<WmWindow*> GetContainersFromAllRootWindows( | |
113 int container_id, | |
114 WmWindow* priority_root) { | |
115 std::vector<WmWindow*> containers; | |
116 for (WmWindow* root : WmShell::Get()->GetAllRootWindows()) { | |
117 WmWindow* container = root->GetChildByShellWindowId(container_id); | |
118 if (!container) | |
119 continue; | |
120 | |
121 if (priority_root && priority_root->Contains(container)) | |
122 containers.insert(containers.begin(), container); | |
123 else | |
124 containers.push_back(container); | |
125 } | |
126 return containers; | |
127 } | |
128 | |
129 } // namespace wm | |
130 } // namespace ash | |
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