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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 #include "athena/system/public/system_ui.h" | |
6 | |
7 #include "athena/screen/public/screen_manager.h" | |
8 #include "athena/system/background_controller.h" | |
9 #include "athena/system/orientation_controller.h" | |
10 #include "athena/system/shutdown_dialog.h" | |
11 #include "athena/system/status_icon_container_view.h" | |
12 #include "athena/system/time_view.h" | |
13 #include "athena/util/athena_constants.h" | |
14 #include "athena/util/container_priorities.h" | |
15 #include "athena/util/fill_layout_manager.h" | |
16 #include "athena/wm/public/window_manager.h" | |
17 #include "athena/wm/public/window_manager_observer.h" | |
18 #include "base/logging.h" | |
19 #include "base/memory/ref_counted.h" | |
20 #include "base/memory/scoped_ptr.h" | |
21 #include "ui/aura/window.h" | |
22 #include "ui/views/view.h" | |
23 #include "ui/views/widget/widget.h" | |
24 #include "ui/wm/core/visibility_controller.h" | |
25 #include "ui/wm/core/window_animations.h" | |
26 | |
27 namespace athena { | |
28 namespace { | |
29 | |
30 SystemUI* instance = nullptr; | |
31 | |
32 // View which positions the TimeView on the left and the StatusIconView on the | |
33 // right. | |
34 class SystemInfoView : public views::View { | |
35 public: | |
36 SystemInfoView(SystemUI::ColorScheme color_scheme) | |
37 : time_view_(new TimeView(color_scheme)), | |
38 status_icon_view_(new StatusIconContainerView(color_scheme)) { | |
39 AddChildView(time_view_); | |
40 AddChildView(status_icon_view_); | |
41 } | |
42 | |
43 ~SystemInfoView() override {} | |
44 | |
45 // views::View: | |
46 virtual gfx::Size GetPreferredSize() const override { | |
47 // The view should be as wide as its parent view. | |
48 return gfx::Size(0, | |
49 std::max(time_view_->GetPreferredSize().height(), | |
50 status_icon_view_->GetPreferredSize().height())); | |
51 } | |
52 | |
53 virtual void Layout() override { | |
54 time_view_->SetBoundsRect(gfx::Rect(time_view_->GetPreferredSize())); | |
55 gfx::Size status_icon_preferred_size = | |
56 status_icon_view_->GetPreferredSize(); | |
57 status_icon_view_->SetBoundsRect( | |
58 gfx::Rect(width() - status_icon_preferred_size.width(), | |
59 0, | |
60 status_icon_preferred_size.width(), | |
61 status_icon_preferred_size.height())); | |
62 } | |
63 | |
64 virtual void ChildPreferredSizeChanged(views::View* child) override { | |
65 // Relayout to take into account changes in |status_icon_view_|'s width. | |
66 // Assume that |time_view_|'s and |status_icon_view_|'s preferred height | |
67 // does not change. | |
68 Layout(); | |
69 } | |
70 | |
71 private: | |
72 views::View* time_view_; | |
73 views::View* status_icon_view_; | |
74 | |
75 DISALLOW_COPY_AND_ASSIGN(SystemInfoView); | |
76 }; | |
77 | |
78 class SystemUIImpl : public SystemUI, public WindowManagerObserver { | |
79 public: | |
80 SystemUIImpl(scoped_refptr<base::TaskRunner> blocking_task_runner) | |
81 : orientation_controller_(new OrientationController()), | |
82 background_container_(nullptr), | |
83 system_info_widget_(nullptr) { | |
84 orientation_controller_->InitWith(blocking_task_runner); | |
85 WindowManager::Get()->AddObserver(this); | |
86 } | |
87 | |
88 ~SystemUIImpl() override { | |
89 WindowManager::Get()->RemoveObserver(this); | |
90 | |
91 // Stops file watching now if exists. Waiting until message loop shutdon | |
92 // leads to FilePathWatcher crash. | |
93 orientation_controller_->Shutdown(); | |
94 } | |
95 | |
96 void Init() { | |
97 ScreenManager* screen_manager = ScreenManager::Get(); | |
98 background_container_ = screen_manager->CreateContainer( | |
99 ScreenManager::ContainerParams("AthenaBackground", CP_BACKGROUND)); | |
100 background_container_->SetLayoutManager( | |
101 new FillLayoutManager(background_container_)); | |
102 | |
103 shutdown_dialog_.reset(new ShutdownDialog()); | |
104 background_controller_.reset( | |
105 new BackgroundController(background_container_)); | |
106 } | |
107 | |
108 private: | |
109 // SystemUI: | |
110 void SetBackgroundImage(const gfx::ImageSkia& image) override { | |
111 background_controller_->SetImage(image); | |
112 } | |
113 | |
114 // WindowManagerObserver: | |
115 void OnOverviewModeEnter() override { | |
116 DCHECK(!system_info_widget_); | |
117 | |
118 ScreenManager* screen_manager = ScreenManager::Get(); | |
119 aura::Window* container = screen_manager->CreateContainer( | |
120 ScreenManager::ContainerParams("SystemInfo", CP_SYSTEM_INFO)); | |
121 wm::SetChildWindowVisibilityChangesAnimated(container); | |
122 | |
123 system_info_widget_ = new views::Widget(); | |
124 views::Widget::InitParams widget_params( | |
125 views::Widget::InitParams::TYPE_WINDOW_FRAMELESS); | |
126 widget_params.parent = container; | |
127 widget_params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW; | |
128 widget_params.bounds = | |
129 gfx::Rect(0, 0, container->bounds().width(), kSystemUIHeight); | |
130 system_info_widget_->Init(widget_params); | |
131 system_info_widget_->SetContentsView( | |
132 new SystemInfoView(SystemUI::COLOR_SCHEME_LIGHT)); | |
133 | |
134 wm::SetWindowVisibilityAnimationType( | |
135 system_info_widget_->GetNativeWindow(), | |
136 wm::WINDOW_VISIBILITY_ANIMATION_TYPE_VERTICAL); | |
137 wm::SetWindowVisibilityAnimationVerticalPosition( | |
138 system_info_widget_->GetNativeWindow(), -kSystemUIHeight); | |
139 | |
140 system_info_widget_->Show(); | |
141 } | |
142 | |
143 void OnOverviewModeExit() override { | |
144 // Deleting the container deletes its child windows which deletes | |
145 // |system_info_widget_|. | |
146 delete system_info_widget_->GetNativeWindow()->parent(); | |
147 system_info_widget_ = nullptr; | |
148 } | |
149 | |
150 void OnSplitViewModeEnter() override {} | |
151 | |
152 void OnSplitViewModeExit() override {} | |
153 | |
154 scoped_ptr<OrientationController> orientation_controller_; | |
155 scoped_ptr<ShutdownDialog> shutdown_dialog_; | |
156 scoped_ptr<BackgroundController> background_controller_; | |
157 | |
158 // The parent container for the background. | |
159 aura::Window* background_container_; | |
160 | |
161 views::Widget* system_info_widget_; | |
162 | |
163 DISALLOW_COPY_AND_ASSIGN(SystemUIImpl); | |
164 }; | |
165 | |
166 } // namespace | |
167 | |
168 // static | |
169 SystemUI* SystemUI::Create( | |
170 scoped_refptr<base::TaskRunner> blocking_task_runner) { | |
171 SystemUIImpl* system_ui = new SystemUIImpl(blocking_task_runner); | |
172 instance = system_ui; | |
173 system_ui->Init(); | |
174 return instance; | |
175 } | |
176 | |
177 // static | |
178 SystemUI* SystemUI::Get() { | |
179 DCHECK(instance); | |
180 return instance; | |
181 } | |
182 | |
183 // static | |
184 void SystemUI::Shutdown() { | |
185 CHECK(instance); | |
186 delete instance; | |
187 instance = nullptr; | |
188 } | |
189 | |
190 } // namespace athena | |
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