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Issue 684543003: Move //mojo/examples to //examples (Closed) Base URL: https://github.com/domokit/mojo.git@master
Patch Set: Created 6 years, 1 month ago
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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 "base/macros.h"
6 #include "base/strings/string_util.h"
7 #include "base/strings/utf_string_conversions.h"
8 #include "mojo/application/application_runner_chromium.h"
9 #include "mojo/common/common_type_converters.h"
10 #include "mojo/converters/geometry/geometry_type_converters.h"
11 #include "mojo/examples/window_manager/window_manager.mojom.h"
12 #include "mojo/public/c/system/main.h"
13 #include "mojo/public/cpp/application/application_connection.h"
14 #include "mojo/public/cpp/application/application_delegate.h"
15 #include "mojo/public/cpp/application/application_impl.h"
16 #include "mojo/public/cpp/application/connect.h"
17 #include "mojo/services/public/cpp/view_manager/view.h"
18 #include "mojo/services/public/cpp/view_manager/view_manager.h"
19 #include "mojo/services/public/cpp/view_manager/view_manager_client_factory.h"
20 #include "mojo/services/public/cpp/view_manager/view_manager_delegate.h"
21 #include "mojo/services/public/interfaces/navigation/navigation.mojom.h"
22 #include "mojo/views/native_widget_view_manager.h"
23 #include "mojo/views/views_init.h"
24 #include "ui/aura/client/focus_client.h"
25 #include "ui/aura/window.h"
26 #include "ui/events/event.h"
27 #include "ui/views/background.h"
28 #include "ui/views/controls/textfield/textfield.h"
29 #include "ui/views/controls/textfield/textfield_controller.h"
30 #include "ui/views/focus/focus_manager.h"
31 #include "ui/views/layout/layout_manager.h"
32 #include "ui/views/widget/widget.h"
33 #include "ui/views/widget/widget_delegate.h"
34 #include "ui/views/widget/widget_observer.h"
35 #include "url/gurl.h"
36
37 namespace mojo {
38 namespace examples {
39
40 class BrowserLayoutManager : public views::LayoutManager {
41 public:
42 BrowserLayoutManager() {}
43 virtual ~BrowserLayoutManager() {}
44
45 private:
46 // Overridden from views::LayoutManager:
47 virtual void Layout(views::View* host) override {
48 // Browser view has one child, a text input field.
49 DCHECK_EQ(1, host->child_count());
50 views::View* text_field = host->child_at(0);
51 gfx::Size ps = text_field->GetPreferredSize();
52 text_field->SetBoundsRect(gfx::Rect(host->width(), ps.height()));
53 }
54 virtual gfx::Size GetPreferredSize(const views::View* host) const override {
55 return gfx::Size();
56 }
57
58 DISALLOW_COPY_AND_ASSIGN(BrowserLayoutManager);
59 };
60
61 // KeyboardManager handles notifying the windowmanager when views are focused.
62 // To use create one and KeyboardManager will take care of all other details.
63 //
64 // TODO(sky): it would be nice if this were put in NativeWidgetViewManager, but
65 // that requires NativeWidgetViewManager to take an IWindowManager. That may be
66 // desirable anyway...
67 class KeyboardManager
68 : public views::FocusChangeListener,
69 public ui::EventHandler,
70 public views::WidgetObserver {
71 public:
72 KeyboardManager(views::Widget* widget,
73 IWindowManager* window_manager,
74 View* view)
75 : widget_(widget),
76 window_manager_(window_manager),
77 view_(view),
78 last_view_id_(0),
79 focused_view_(NULL) {
80 widget_->GetFocusManager()->AddFocusChangeListener(this);
81 widget_->AddObserver(this);
82 widget_->GetNativeView()->AddPostTargetHandler(this);
83 }
84
85 private:
86 virtual ~KeyboardManager() {
87 widget_->GetFocusManager()->RemoveFocusChangeListener(this);
88 widget_->GetNativeView()->RemovePostTargetHandler(this);
89 widget_->RemoveObserver(this);
90
91 HideKeyboard();
92 }
93
94 void ShowKeyboard(views::View* view) {
95 if (focused_view_ == view)
96 return;
97
98 const gfx::Rect bounds_in_widget =
99 view->ConvertRectToWidget(gfx::Rect(view->bounds().size()));
100 last_view_id_ = view_->id();
101 window_manager_->ShowKeyboard(last_view_id_,
102 Rect::From(bounds_in_widget));
103 // TODO(sky): listen for view to be removed.
104 focused_view_ = view;
105 }
106
107 void HideKeyboard() {
108 if (!focused_view_)
109 return;
110
111 window_manager_->HideKeyboard(last_view_id_);
112 last_view_id_ = 0;
113 focused_view_ = NULL;
114 }
115
116 // views::FocusChangeListener:
117 virtual void OnWillChangeFocus(views::View* focused_before,
118 views::View* focused_now) override {
119 }
120 virtual void OnDidChangeFocus(views::View* focused_before,
121 views::View* focused_now) override {
122 if (focused_view_ && focused_now != focused_view_)
123 HideKeyboard();
124 }
125
126 // ui::EventHandler:
127 virtual void OnMouseEvent(ui::MouseEvent* event) override {
128 views::View* focused_now = widget_->GetFocusManager()->GetFocusedView();
129 if (focused_now &&
130 focused_now->GetClassName() == views::Textfield::kViewClassName &&
131 (event->flags() & ui::EF_FROM_TOUCH) != 0) {
132 ShowKeyboard(focused_now);
133 }
134 }
135
136 // views::WidgetObserver:
137 virtual void OnWidgetDestroying(views::Widget* widget) override {
138 delete this;
139 }
140
141 views::Widget* widget_;
142 IWindowManager* window_manager_;
143 View* view_;
144 Id last_view_id_;
145 views::View* focused_view_;
146
147 DISALLOW_COPY_AND_ASSIGN(KeyboardManager);
148 };
149
150 // This is the basics of creating a views widget with a textfield.
151 // TODO: cleanup!
152 class Browser : public ApplicationDelegate,
153 public ViewManagerDelegate,
154 public views::TextfieldController,
155 public ViewObserver {
156 public:
157 Browser()
158 : shell_(nullptr), view_manager_(NULL), root_(NULL), widget_(NULL) {}
159
160 virtual ~Browser() {
161 if (root_)
162 root_->RemoveObserver(this);
163 }
164
165 private:
166 // Overridden from ApplicationDelegate:
167 virtual void Initialize(ApplicationImpl* app) override {
168 shell_ = app->shell();
169 view_manager_client_factory_.reset(
170 new ViewManagerClientFactory(shell_, this));
171 views_init_.reset(new ViewsInit);
172 app->ConnectToService("mojo:window_manager", &window_manager_);
173 }
174
175 virtual bool ConfigureIncomingConnection(
176 ApplicationConnection* connection) override {
177 connection->AddService(view_manager_client_factory_.get());
178 return true;
179 }
180
181 void CreateWidget(View* view) {
182 views::Textfield* textfield = new views::Textfield;
183 textfield->set_controller(this);
184
185 views::WidgetDelegateView* widget_delegate = new views::WidgetDelegateView;
186 widget_delegate->GetContentsView()->set_background(
187 views::Background::CreateSolidBackground(SK_ColorBLUE));
188 widget_delegate->GetContentsView()->AddChildView(textfield);
189 widget_delegate->GetContentsView()->SetLayoutManager(
190 new BrowserLayoutManager);
191
192 widget_ = new views::Widget;
193 views::Widget::InitParams params(
194 views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
195 params.native_widget = new NativeWidgetViewManager(widget_, shell_, view);
196 params.delegate = widget_delegate;
197 params.bounds = gfx::Rect(view->bounds().width, view->bounds().height);
198 widget_->Init(params);
199 // KeyboardManager handles deleting itself when the widget is destroyed.
200 new KeyboardManager(widget_, window_manager_.get(), view);
201 widget_->Show();
202 textfield->RequestFocus();
203 }
204
205 // ViewManagerDelegate:
206 virtual void OnEmbed(ViewManager* view_manager,
207 View* root,
208 ServiceProviderImpl* exported_services,
209 scoped_ptr<ServiceProvider> imported_services) override {
210 // TODO: deal with OnEmbed() being invoked multiple times.
211 ConnectToService(imported_services.get(), &navigator_host_);
212 view_manager_ = view_manager;
213 root_ = root;
214 root_->AddObserver(this);
215 root_->SetFocus();
216 CreateWidget(root_);
217 }
218 virtual void OnViewManagerDisconnected(
219 ViewManager* view_manager) override {
220 DCHECK_EQ(view_manager_, view_manager);
221 view_manager_ = NULL;
222 base::MessageLoop::current()->Quit();
223 }
224
225 // views::TextfieldController:
226 virtual bool HandleKeyEvent(views::Textfield* sender,
227 const ui::KeyEvent& key_event) override {
228 if (key_event.key_code() == ui::VKEY_RETURN) {
229 GURL url(sender->text());
230 printf("User entered this URL: %s\n", url.spec().c_str());
231 URLRequestPtr request(URLRequest::New());
232 request->url = String::From(url);
233 navigator_host_->RequestNavigate(TARGET_NEW_NODE, request.Pass());
234 }
235 return false;
236 }
237
238 // ViewObserver:
239 virtual void OnViewFocusChanged(View* gained_focus,
240 View* lost_focus) override {
241 aura::client::FocusClient* focus_client =
242 aura::client::GetFocusClient(widget_->GetNativeView());
243 if (lost_focus == root_)
244 focus_client->FocusWindow(NULL);
245 else if (gained_focus == root_)
246 focus_client->FocusWindow(widget_->GetNativeView());
247 }
248 virtual void OnViewDestroyed(View* view) override {
249 DCHECK_EQ(root_, view);
250 view->RemoveObserver(this);
251 root_ = NULL;
252 }
253
254 Shell* shell_;
255
256 scoped_ptr<ViewsInit> views_init_;
257
258 ViewManager* view_manager_;
259 scoped_ptr<ViewManagerClientFactory> view_manager_client_factory_;
260 View* root_;
261 views::Widget* widget_;
262 NavigatorHostPtr navigator_host_;
263 IWindowManagerPtr window_manager_;
264
265 DISALLOW_COPY_AND_ASSIGN(Browser);
266 };
267
268 } // namespace examples
269 } // namespace mojo
270
271 MojoResult MojoMain(MojoHandle shell_handle) {
272 mojo::ApplicationRunnerChromium runner(new mojo::examples::Browser);
273 return runner.Run(shell_handle);
274 }
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