src/athena/system/network_selector.cc

   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/network_selector.h"
   6
   7 #include "athena/screen/public/screen_manager.h"
   8 #include "base/memory/weak_ptr.h"
   9 #include "base/strings/utf_string_conversions.h"
  10 #include "chromeos/network/network_configuration_handler.h"
  11 #include "chromeos/network/network_connection_handler.h"
  12 #include "chromeos/network/network_handler.h"
  13 #include "chromeos/network/network_profile_handler.h"
  14 #include "chromeos/network/network_state.h"
  15 #include "chromeos/network/network_state_handler.h"
  16 #include "chromeos/network/network_state_handler_observer.h"
  17 #include "chromeos/network/network_type_pattern.h"
  18 #include "third_party/cros_system_api/dbus/service_constants.h"
  19 #include "ui/aura/window.h"
  20 #include "ui/chromeos/network/network_icon.h"
  21 #include "ui/chromeos/network/network_info.h"
  22 #include "ui/chromeos/network/network_list.h"
  23 #include "ui/chromeos/network/network_list_delegate.h"
  24 #include "ui/compositor/layer.h"
  25 #include "ui/gfx/canvas.h"
  26 #include "ui/gfx/font.h"
  27 #include "ui/gfx/font_list.h"
  28 #include "ui/gfx/geometry/rect.h"
  29 #include "ui/gfx/text_constants.h"
  30 #include "ui/views/background.h"
  31 #include "ui/views/border.h"
  32 #include "ui/views/controls/button/blue_button.h"
  33 #include "ui/views/controls/button/button.h"
  34 #include "ui/views/controls/image_view.h"
  35 #include "ui/views/controls/label.h"
  36 #include "ui/views/controls/scroll_view.h"
  37 #include "ui/views/controls/scrollbar/overlay_scroll_bar.h"
  38 #include "ui/views/controls/textfield/textfield.h"
  39 #include "ui/views/layout/box_layout.h"
  40 #include "ui/views/layout/fill_layout.h"
  41 #include "ui/views/widget/widget.h"
  42 #include "ui/views/window/dialog_delegate.h"
  43
  44 using chromeos::NetworkConfigurationHandler;
  45 using chromeos::NetworkConnectionHandler;
  46 using chromeos::NetworkHandler;
  47 using chromeos::NetworkProfileHandler;
  48 using chromeos::NetworkState;
  49
  50 namespace {
  51
  52 // The View for the user to enter the password for connceting to a network. This
  53 // view also shows an error message if the network connection fails.
  54 class PasswordView : public views::View, public views::ButtonListener {
  55  public:
  56   PasswordView(const ui::NetworkInfo& network,
  57                const base::Callback<void(bool)>& callback)
  58       : network_(network),
  59         callback_(callback),
  60         connect_(nullptr),
  61         cancel_(nullptr),
  62         textfield_(nullptr),
  63         error_msg_(nullptr),
  64         weak_ptr_(this) {
  65     const int kHorizontal = 5;
  66     const int kVertical = 0;
  67     const int kPadding = 0;
  68
  69     views::BoxLayout* layout = new views::BoxLayout(
  70         views::BoxLayout::kVertical, kHorizontal, kVertical, kPadding);
  71     layout->set_main_axis_alignment(
  72         views::BoxLayout::MAIN_AXIS_ALIGNMENT_START);
  73     layout->set_cross_axis_alignment(
  74         views::BoxLayout::CROSS_AXIS_ALIGNMENT_STRETCH);
  75     SetLayoutManager(layout);
  76
  77     views::View* container = new views::View;
  78     layout = new views::BoxLayout(
  79         views::BoxLayout::kHorizontal, kHorizontal, kVertical, kPadding);
  80     layout->set_main_axis_alignment(
  81         views::BoxLayout::MAIN_AXIS_ALIGNMENT_START);
  82     container->SetLayoutManager(layout);
  83
  84     textfield_ = new views::Textfield();
  85     textfield_->set_placeholder_text(base::ASCIIToUTF16("Password"));
  86     textfield_->SetTextInputType(ui::TEXT_INPUT_TYPE_PASSWORD);
  87     textfield_->set_default_width_in_chars(35);
  88     container->AddChildView(textfield_);
  89
  90     connect_ = new views::BlueButton(this, base::ASCIIToUTF16("Connect"));
  91     container->AddChildView(connect_);
  92
  93     cancel_ = new views::LabelButton(this, base::ASCIIToUTF16("Cancel"));
  94     cancel_->SetHorizontalAlignment(gfx::ALIGN_CENTER);
  95     container->AddChildView(cancel_);
  96
  97     AddChildView(container);
  98   }
  99
 100   ~PasswordView() override {}
 101
 102  private:
 103   void CloseDialog(bool successful) { callback_.Run(successful); }
 104
 105   void OnKnownError(const std::string& error_name,
 106                     scoped_ptr<base::DictionaryValue> error_data) {
 107     std::string message;
 108     if (!error_data->GetString(chromeos::network_handler::kDbusErrorMessage,
 109                                &message))
 110       message = error_name;
 111     if (message.empty())
 112       message = std::string("Unknown error.");
 113     if (!error_msg_) {
 114       error_msg_ = new views::Label();
 115       error_msg_->SetFontList(
 116           error_msg_->font_list().Derive(0, gfx::Font::BOLD));
 117       error_msg_->SetEnabledColor(SK_ColorRED);
 118     }
 119     error_msg_->SetText(base::UTF8ToUTF16(message));
 120     if (!error_msg_->parent()) {
 121       AddChildView(error_msg_);
 122       InvalidateLayout();
 123       GetWidget()->GetRootView()->Layout();
 124       ScrollRectToVisible(error_msg_->bounds());
 125     }
 126     connect_->SetEnabled(true);
 127   }
 128
 129   void OnSetProfileSucceed(const base::string16& password) {
 130     base::DictionaryValue properties;
 131     properties.SetStringWithoutPathExpansion(shill::kPassphraseProperty,
 132                                              textfield_->text());
 133     NetworkHandler::Get()->network_configuration_handler()->SetProperties(
 134         network_.service_path,
 135         properties,
 136         base::Bind(&PasswordView::OnSetPropertiesSucceed,
 137                    weak_ptr_.GetWeakPtr()),
 138         base::Bind(&PasswordView::OnKnownError, weak_ptr_.GetWeakPtr()));
 139   }
 140
 141   void OnSetPropertiesSucceed() {
 142     const bool check_error_state = false;
 143     NetworkHandler::Get()->network_connection_handler()->ConnectToNetwork(
 144         network_.service_path,
 145         base::Bind(&PasswordView::OnConnectionSucceed, weak_ptr_.GetWeakPtr()),
 146         base::Bind(&PasswordView::OnKnownError, weak_ptr_.GetWeakPtr()),
 147         check_error_state);
 148   }
 149
 150   void OnConnectionSucceed() { CloseDialog(true); }
 151
 152   // views::View:
 153   virtual void ViewHierarchyChanged(
 154       const views::View::ViewHierarchyChangedDetails& details) override {
 155     if (details.is_add && details.child == this)
 156       textfield_->RequestFocus();
 157   }
 158
 159   // views::ButtonListener:
 160   virtual void ButtonPressed(views::Button* sender,
 161                              const ui::Event& event) override {
 162     if (sender == connect_) {
 163       if (error_msg_) {
 164         RemoveChildView(error_msg_);
 165         delete error_msg_;
 166         error_msg_ = nullptr;
 167       }
 168       connect_->SetEnabled(false);
 169       NetworkHandler::Get()->network_configuration_handler()->SetNetworkProfile(
 170           network_.service_path,
 171           NetworkProfileHandler::GetSharedProfilePath(),
 172           base::Bind(&PasswordView::OnSetProfileSucceed,
 173                      weak_ptr_.GetWeakPtr(),
 174                      textfield_->text()),
 175           base::Bind(&PasswordView::OnKnownError, weak_ptr_.GetWeakPtr()));
 176     } else if (sender == cancel_) {
 177       CloseDialog(false);
 178     } else {
 179       NOTREACHED();
 180     }
 181   }
 182
 183   ui::NetworkInfo network_;
 184   base::Callback<void(bool)> callback_;
 185
 186   views::BlueButton* connect_;
 187   views::LabelButton* cancel_;
 188   views::Textfield* textfield_;
 189   views::Label* error_msg_;
 190   base::WeakPtrFactory<PasswordView> weak_ptr_;
 191
 192   DISALLOW_COPY_AND_ASSIGN(PasswordView);
 193 };
 194
 195 // A View that represents a single row in the network list. This row also
 196 // contains the View for taking password for password-protected networks.
 197 class NetworkRow : public views::View {
 198  public:
 199   NetworkRow(const ui::NetworkInfo& network)
 200       : network_(network), weak_ptr_(this) {
 201     SetBorder(views::Border::CreateEmptyBorder(10, 5, 10, 5));
 202     SetLayoutManager(
 203         new views::BoxLayout(views::BoxLayout::kHorizontal, 0, 0, 10));
 204     Update(network);
 205   }
 206
 207   ~NetworkRow() override {}
 208
 209   void Update(const ui::NetworkInfo& network) {
 210     network_ = network;
 211     views::ImageView* icon = new views::ImageView();
 212     icon->SetImage(network.image);
 213     icon->SetBounds(0, 0, network.image.width(), network.image.height());
 214
 215     views::Label* label = new views::Label(network.label);
 216     if (network.highlight)
 217       label->SetFontList(label->font_list().Derive(0, gfx::Font::BOLD));
 218     AddChildView(icon);
 219     AddChildView(label);
 220     if (password_view_)
 221       AddChildView(password_view_.get());
 222   }
 223
 224   bool has_password_view() const { return password_view_; }
 225
 226  private:
 227   void OnPasswordComplete(bool successful) {
 228     password_view_.reset();
 229     InvalidateLayout();
 230     GetWidget()->GetRootView()->Layout();
 231     ScrollRectToVisible(GetContentsBounds());
 232   }
 233
 234   void ShowPasswordView(const std::string& service_path) {
 235     const NetworkState* network =
 236         NetworkHandler::Get()->network_state_handler()->GetNetworkState(
 237             service_path);
 238     if (!network)
 239       return;
 240
 241     // If this is not a wifi network that needs a password, then ignore.
 242     if (network->type() != shill::kTypeWifi ||
 243         network->security() == shill::kSecurityNone) {
 244       return;
 245     }
 246
 247     password_view_.reset(new PasswordView(
 248         network_,
 249         base::Bind(&NetworkRow::OnPasswordComplete, weak_ptr_.GetWeakPtr())));
 250     password_view_->set_owned_by_client();
 251     AddChildView(password_view_.get());
 252     PreferredSizeChanged();
 253     GetWidget()->GetRootView()->Layout();
 254     ScrollRectToVisible(password_view_->bounds());
 255   }
 256
 257   void OnNetworkConnectionError(const std::string& service_path,
 258                                 const std::string& error_name,
 259                                 scoped_ptr<base::DictionaryValue> error_data) {
 260     if (error_name == NetworkConnectionHandler::kErrorConnectCanceled)
 261       return;
 262     if (error_name == shill::kErrorBadPassphrase ||
 263         error_name == NetworkConnectionHandler::kErrorPassphraseRequired ||
 264         error_name == NetworkConnectionHandler::kErrorConfigurationRequired ||
 265         error_name == NetworkConnectionHandler::kErrorAuthenticationRequired) {
 266       ShowPasswordView(service_path);
 267     }
 268   }
 269
 270   void ActivateNetwork() {
 271     const chromeos::NetworkState* network =
 272         NetworkHandler::Get()->network_state_handler()->GetNetworkState(
 273             network_.service_path);
 274     if (!network)
 275       return;
 276     if (network->IsConnectedState()) {
 277       NetworkHandler::Get()->network_connection_handler()->DisconnectNetwork(
 278           network_.service_path,
 279           base::Closure(),
 280           chromeos::network_handler::ErrorCallback());
 281     } else if (!network->IsConnectingState()) {
 282       // |network| is not connected, and not already trying to connect.
 283       NetworkHandler::Get()->network_connection_handler()->ConnectToNetwork(
 284           network_.service_path,
 285           base::Closure(),
 286           base::Bind(&NetworkRow::OnNetworkConnectionError,
 287                      weak_ptr_.GetWeakPtr(),
 288                      network_.service_path),
 289           false);
 290     }
 291   }
 292
 293   // views::View:
 294   virtual void OnMouseEvent(ui::MouseEvent* event) override {
 295     if (event->type() != ui::ET_MOUSE_PRESSED)
 296       return;
 297     ActivateNetwork();
 298     event->SetHandled();
 299   }
 300
 301   virtual void OnGestureEvent(ui::GestureEvent* gesture) override {
 302     if (gesture->type() != ui::ET_GESTURE_TAP)
 303       return;
 304     ActivateNetwork();
 305     gesture->SetHandled();
 306   }
 307
 308   ui::NetworkInfo network_;
 309   scoped_ptr<views::View> password_view_;
 310   base::WeakPtrFactory<NetworkRow> weak_ptr_;
 311
 312   DISALLOW_COPY_AND_ASSIGN(NetworkRow);
 313 };
 314
 315 class NetworkSelector : public ui::NetworkListDelegate,
 316                         public chromeos::NetworkStateHandlerObserver,
 317                         public views::DialogDelegate {
 318  public:
 319   NetworkSelector()
 320       : scroll_content_(nullptr), scroller_(nullptr), network_list_(this) {
 321     CreateNetworkList();
 322     CreateWidget();
 323
 324     NetworkHandler::Get()->network_state_handler()->RequestScan();
 325     NetworkHandler::Get()->network_state_handler()->AddObserver(this,
 326                                                                 FROM_HERE);
 327   }
 328
 329   ~NetworkSelector() override {
 330     NetworkHandler::Get()->network_state_handler()->RemoveObserver(this,
 331                                                                    FROM_HERE);
 332   }
 333
 334  private:
 335   void CreateWidget() {
 336     // Same as CreateDialogWidgetWithBounds() with an empty |bounds|.
 337     views::Widget* widget = views::DialogDelegate::CreateDialogWidget(
 338         this, athena::ScreenManager::Get()->GetContext(), nullptr);
 339     widget->Show();
 340     widget->CenterWindow(gfx::Size(400, 400));
 341   }
 342
 343   void CreateNetworkList() {
 344     const int kListHeight = 400;
 345     scroller_ = new views::ScrollView();
 346     scroller_->set_background(
 347         views::Background::CreateSolidBackground(SK_ColorWHITE));
 348
 349     scroll_content_ = new views::View;
 350     scroll_content_->SetLayoutManager(
 351         new views::BoxLayout(views::BoxLayout::kVertical, 0, 0, 0));
 352     scroller_->SetContents(scroll_content_);
 353
 354     scroller_->ClipHeightTo(kListHeight, kListHeight);
 355     scroller_->SetVerticalScrollBar(new views::OverlayScrollBar(false));
 356
 357     network_list_.set_content_view(scroll_content_);
 358   }
 359
 360   void UpdateNetworkList() { network_list_.UpdateNetworkList(); }
 361
 362   // ui::NetworkListDelegate:
 363   virtual views::View* CreateViewForNetwork(
 364       const ui::NetworkInfo& info) override {
 365     return new NetworkRow(info);
 366   }
 367
 368   virtual bool IsViewHovered(views::View* view) override {
 369     return static_cast<NetworkRow*>(view)->has_password_view();
 370   }
 371
 372   virtual chromeos::NetworkTypePattern GetNetworkTypePattern() const override {
 373     return chromeos::NetworkTypePattern::NonVirtual();
 374   }
 375
 376   virtual void UpdateViewForNetwork(views::View* view,
 377                                     const ui::NetworkInfo& info) override {
 378     static_cast<NetworkRow*>(view)->Update(info);
 379   }
 380
 381   virtual views::Label* CreateInfoLabel() override {
 382     views::Label* label = new views::Label();
 383     return label;
 384   }
 385
 386   virtual void RelayoutScrollList() override { scroller_->Layout(); }
 387
 388   // chromeos::NetworkStateHandlerObserver:
 389   virtual void NetworkListChanged() override { UpdateNetworkList(); }
 390
 391   virtual void DeviceListChanged() override {}
 392
 393   virtual void DefaultNetworkChanged(
 394       const chromeos::NetworkState* network) override {}
 395
 396   virtual void NetworkConnectionStateChanged(
 397       const chromeos::NetworkState* network) override {}
 398
 399   virtual void NetworkPropertiesUpdated(
 400       const chromeos::NetworkState* network) override {}
 401
 402   // views::DialogDelegate:
 403   virtual ui::ModalType GetModalType() const override {
 404     return ui::MODAL_TYPE_SYSTEM;
 405   }
 406   virtual void DeleteDelegate() override { delete this; }
 407   virtual views::Widget* GetWidget() override { return scroller_->GetWidget(); }
 408   virtual const views::Widget* GetWidget() const override {
 409     return scroller_->GetWidget();
 410   }
 411   virtual views::View* GetContentsView() override { return scroller_; }
 412   virtual int GetDialogButtons() const override { return ui::DIALOG_BUTTON_OK; }
 413   virtual bool Close() override { return true; }
 414
 415   views::View* scroll_content_;
 416   views::ScrollView* scroller_;
 417
 418   views::View* connect_;
 419
 420   ui::NetworkListView network_list_;
 421
 422   DISALLOW_COPY_AND_ASSIGN(NetworkSelector);
 423 };
 424
 425 }  // namespace
 426
 427 namespace athena {
 428
 429 void CreateNetworkSelector() {
 430   new NetworkSelector();
 431 }
 432
 433 }  // namespace athena