Support modal windows

athena/system/network_selector.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "athena/system/network_selector.h"
 
+#include "athena/screen/public/screen_manager.h"
 #include "base/memory/weak_ptr.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chromeos/network/network_configuration_handler.h"
 #include "chromeos/network/network_connection_handler.h"
 #include "chromeos/network/network_handler.h"
 #include "chromeos/network/network_profile_handler.h"
 #include "chromeos/network/network_state.h"
 #include "chromeos/network/network_state_handler.h"
 #include "chromeos/network/network_state_handler_observer.h"
 #include "chromeos/network/network_type_pattern.h"
@@ skipping 14 matching lines @@
 #include "ui/views/controls/button/blue_button.h"
 #include "ui/views/controls/button/button.h"
 #include "ui/views/controls/image_view.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/controls/scroll_view.h"
 #include "ui/views/controls/scrollbar/overlay_scroll_bar.h"
 #include "ui/views/controls/textfield/textfield.h"
 #include "ui/views/layout/box_layout.h"
 #include "ui/views/layout/fill_layout.h"
 #include "ui/views/widget/widget.h"
+#include "ui/views/window/dialog_delegate.h"
 
 using chromeos::NetworkConfigurationHandler;
 using chromeos::NetworkConnectionHandler;
 using chromeos::NetworkHandler;
 using chromeos::NetworkProfileHandler;
 using chromeos::NetworkState;
 
 namespace {
 
-const int kBackgroundColor = SkColorSetARGB(0x7f, 0, 0, 0);
-
 // The View for the user to enter the password for connceting to a network. This
 // view also shows an error message if the network connection fails.
 class PasswordView : public views::View, public views::ButtonListener {
  public:
   PasswordView(const ui::NetworkInfo& network,
-               const base::Callback<void(bool)>& callback,
-               views::View* parent_container)
+               const base::Callback<void(bool)>& callback)
       : network_(network),
         callback_(callback),
-        parent_container_(parent_container),
         connect_(NULL),
         cancel_(NULL),
         textfield_(NULL),
         error_msg_(NULL),
         weak_ptr_(this) {
     const int kHorizontal = 5;
     const int kVertical = 0;
     const int kPadding = 0;
 
     views::BoxLayout* layout = new views::BoxLayout(
@@ skipping 23 matching lines @@
     cancel_ = new views::LabelButton(this, base::ASCIIToUTF16("Cancel"));
     cancel_->SetHorizontalAlignment(gfx::ALIGN_CENTER);
     container->AddChildView(cancel_);
 
     AddChildView(container);
   }
 
   virtual ~PasswordView() {}
 
  private:
-  void Close(bool successful) { callback_.Run(successful); }
+  void CloseDialog(bool successful) { callback_.Run(successful); }
 
   void OnKnownError(const std::string& error_name,
                     scoped_ptr<base::DictionaryValue> error_data) {
     std::string message;
     if (!error_data->GetString(chromeos::network_handler::kDbusErrorMessage,
                                &message))
       message = error_name;
     if (message.empty())
       message = std::string("Unknown error.");
     if (!error_msg_) {
       error_msg_ = new views::Label();
       error_msg_->SetFontList(
           error_msg_->font_list().Derive(0, gfx::Font::BOLD));
       error_msg_->SetEnabledColor(SK_ColorRED);
     }
     error_msg_->SetText(base::UTF8ToUTF16(message));
     if (!error_msg_->parent()) {
       AddChildView(error_msg_);
       InvalidateLayout();
-      parent_container_->Layout();
+      GetWidget()->GetRootView()->Layout();
       ScrollRectToVisible(error_msg_->bounds());
     }
     connect_->SetEnabled(true);
   }
 
   void OnSetProfileSucceed(const base::string16& password) {
     base::DictionaryValue properties;
     properties.SetStringWithoutPathExpansion(shill::kPassphraseProperty,
                                              textfield_->text());
     NetworkHandler::Get()->network_configuration_handler()->SetProperties(
         network_.service_path,
         properties,
         base::Bind(&PasswordView::OnSetPropertiesSucceed,
                    weak_ptr_.GetWeakPtr()),
         base::Bind(&PasswordView::OnKnownError, weak_ptr_.GetWeakPtr()));
   }
 
   void OnSetPropertiesSucceed() {
     const bool check_error_state = false;
     NetworkHandler::Get()->network_connection_handler()->ConnectToNetwork(
         network_.service_path,
         base::Bind(&PasswordView::OnConnectionSucceed, weak_ptr_.GetWeakPtr()),
         base::Bind(&PasswordView::OnKnownError, weak_ptr_.GetWeakPtr()),
         check_error_state);
   }
 
-  void OnConnectionSucceed() { Close(true); }
+  void OnConnectionSucceed() { CloseDialog(true); }
 
   // views::View:
   virtual void ViewHierarchyChanged(
       const views::View::ViewHierarchyChangedDetails& details) override {
     if (details.is_add && details.child == this)
       textfield_->RequestFocus();
   }
 
   // views::ButtonListener:
   virtual void ButtonPressed(views::Button* sender,
                              const ui::Event& event) override {
     if (sender == connect_) {
       if (error_msg_) {
         RemoveChildView(error_msg_);
         delete error_msg_;
         error_msg_ = NULL;
       }
       connect_->SetEnabled(false);
       NetworkHandler::Get()->network_configuration_handler()->SetNetworkProfile(
           network_.service_path,
           NetworkProfileHandler::GetSharedProfilePath(),
           base::Bind(&PasswordView::OnSetProfileSucceed,
                      weak_ptr_.GetWeakPtr(),
                      textfield_->text()),
           base::Bind(&PasswordView::OnKnownError, weak_ptr_.GetWeakPtr()));
     } else if (sender == cancel_) {
-      Close(false);
+      CloseDialog(false);
     } else {
       NOTREACHED();
     }
   }
 
   ui::NetworkInfo network_;
   base::Callback<void(bool)> callback_;
-  views::View* parent_container_;
 
   views::BlueButton* connect_;
   views::LabelButton* cancel_;
   views::Textfield* textfield_;
   views::Label* error_msg_;
   base::WeakPtrFactory<PasswordView> weak_ptr_;
 
   DISALLOW_COPY_AND_ASSIGN(PasswordView);
 };
 
 // A View that represents a single row in the network list. This row also
 // contains the View for taking password for password-protected networks.
 class NetworkRow : public views::View {
  public:
-  NetworkRow(const ui::NetworkInfo& network, views::View* container)
-      : network_(network), container_(container), weak_ptr_(this) {
+  NetworkRow(const ui::NetworkInfo& network)
+      : network_(network), weak_ptr_(this) {
     SetBorder(views::Border::CreateEmptyBorder(10, 5, 10, 5));
     SetLayoutManager(
         new views::BoxLayout(views::BoxLayout::kHorizontal, 0, 0, 10));
     Update(network);
   }
 
   virtual ~NetworkRow() {}
 
   void Update(const ui::NetworkInfo& network) {
     network_ = network;
     views::ImageView* icon = new views::ImageView();
     icon->SetImage(network.image);
     icon->SetBounds(0, 0, network.image.width(), network.image.height());
 
     views::Label* label = new views::Label(network.label);
     if (network.highlight)
       label->SetFontList(label->font_list().Derive(0, gfx::Font::BOLD));
     AddChildView(icon);
     AddChildView(label);
     if (password_view_)
       AddChildView(password_view_.get());
   }
 
   bool has_password_view() const { return password_view_; }
 
  private:
   void OnPasswordComplete(bool successful) {
     password_view_.reset();
     InvalidateLayout();
-    container_->Layout();
+    GetWidget()->GetRootView()->Layout();
     ScrollRectToVisible(GetContentsBounds());
   }
 
   void ShowPasswordView(const std::string& service_path) {
     const NetworkState* network =
         NetworkHandler::Get()->network_state_handler()->GetNetworkState(
             service_path);
     if (!network)
       return;
 
     // If this is not a wifi network that needs a password, then ignore.
     if (network->type() != shill::kTypeWifi ||
         network->security() == shill::kSecurityNone) {
       return;
     }
 
     password_view_.reset(new PasswordView(
         network_,
-        base::Bind(&NetworkRow::OnPasswordComplete, weak_ptr_.GetWeakPtr()),
-        container_));
+        base::Bind(&NetworkRow::OnPasswordComplete, weak_ptr_.GetWeakPtr())));
     password_view_->set_owned_by_client();
     AddChildView(password_view_.get());
     PreferredSizeChanged();
-    container_->Layout();
+    GetWidget()->GetRootView()->Layout();
     ScrollRectToVisible(password_view_->bounds());
   }
 
   void OnNetworkConnectionError(const std::string& service_path,
                                 const std::string& error_name,
                                 scoped_ptr<base::DictionaryValue> error_data) {
     if (error_name == NetworkConnectionHandler::kErrorConnectCanceled)
       return;
     if (error_name == shill::kErrorBadPassphrase ||
         error_name == NetworkConnectionHandler::kErrorPassphraseRequired ||
@@ skipping 35 matching lines @@
   }
 
   virtual void OnGestureEvent(ui::GestureEvent* gesture) override {
     if (gesture->type() != ui::ET_GESTURE_TAP)
       return;
     ActivateNetwork();
     gesture->SetHandled();
   }
 
   ui::NetworkInfo network_;
-  views::View* container_;
   scoped_ptr<views::View> password_view_;
   base::WeakPtrFactory<NetworkRow> weak_ptr_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkRow);
 };
 
 class NetworkSelector : public ui::NetworkListDelegate,
                         public chromeos::NetworkStateHandlerObserver,
-                        public ui::EventHandler {
+                        public views::DialogDelegate {
  public:
-  explicit NetworkSelector(aura::Window* container)
-      : background_view_(NULL),
-        scroll_content_(NULL),
-        scroller_(NULL),
-        network_list_(this) {
-    CreateWidget(container);
+  NetworkSelector()
+      : scroll_content_(NULL), scroller_(NULL), network_list_(this) {
     CreateNetworkList();
+    CreateWidget();
 
     NetworkHandler::Get()->network_state_handler()->RequestScan();
     NetworkHandler::Get()->network_state_handler()->AddObserver(this,
                                                                 FROM_HERE);
   }
 
   virtual ~NetworkSelector() {
     NetworkHandler::Get()->network_state_handler()->RemoveObserver(this,
                                                                    FROM_HERE);
   }
 
  private:
-  void CreateWidget(aura::Window* container) {
-    views::Widget::InitParams params;
-    params.type = views::Widget::InitParams::TYPE_WINDOW_FRAMELESS;
-    params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW;
-    params.activatable = views::Widget::InitParams::ACTIVATABLE_DEFAULT;
-    params.accept_events = true;
-    params.bounds = gfx::Rect(container->bounds().size());
-    params.parent = container;
-    params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
-    widget_.reset(new views::Widget());
-    widget_->Init(params);
-    widget_->Show();
-
-    background_view_ = new views::View;
-    background_view_->set_background(
-        views::Background::CreateSolidBackground(kBackgroundColor));
-    background_view_->SetBorder(
-        views::Border::CreateEmptyBorder(100, 300, 300, 300));
-    background_view_->SetLayoutManager(new views::FillLayout());
-    background_view_->set_target_handler(this);
-
-    widget_->SetContentsView(background_view_);
+  void CreateWidget() {
+    // Same as CreateDialogWidgetWithBounds() with an empty |bounds|.
+    views::Widget* widget = views::DialogDelegate::CreateDialogWidget(
+        this, athena::ScreenManager::Get()->GetContext(), NULL);
+    widget->Show();
+    widget->CenterWindow(gfx::Size(400, 400));
   }
 
   void CreateNetworkList() {
-    const int kListHeight = 500;
+    const int kListHeight = 400;
     scroller_ = new views::ScrollView();
     scroller_->set_background(
         views::Background::CreateSolidBackground(SK_ColorWHITE));
-    scroller_->SetBounds(0, 0, 400, kListHeight);
 
     scroll_content_ = new views::View;
     scroll_content_->SetLayoutManager(
         new views::BoxLayout(views::BoxLayout::kVertical, 0, 0, 0));
     scroller_->SetContents(scroll_content_);
 
     scroller_->ClipHeightTo(kListHeight, kListHeight);
     scroller_->SetVerticalScrollBar(new views::OverlayScrollBar(false));
-    background_view_->AddChildView(scroller_);
-
-    background_view_->Layout();
 
     network_list_.set_content_view(scroll_content_);
   }
 
   void UpdateNetworkList() { network_list_.UpdateNetworkList(); }
 
-  void Close() { delete this; }
-
   // ui::NetworkListDelegate:
   virtual views::View* CreateViewForNetwork(
       const ui::NetworkInfo& info) override {
-    return new NetworkRow(info, background_view_);
+    return new NetworkRow(info);
   }
 
   virtual bool IsViewHovered(views::View* view) override {
     return static_cast<NetworkRow*>(view)->has_password_view();
   }
 
   virtual chromeos::NetworkTypePattern GetNetworkTypePattern() const override {
     return chromeos::NetworkTypePattern::NonVirtual();
   }
 
@@ skipping 16 matching lines @@
 
   virtual void DefaultNetworkChanged(
       const chromeos::NetworkState* network) override {}
 
   virtual void NetworkConnectionStateChanged(
       const chromeos::NetworkState* network) override {}
 
   virtual void NetworkPropertiesUpdated(
       const chromeos::NetworkState* network) override {}
 
-  // ui::EventHandler:
-  virtual void OnMouseEvent(ui::MouseEvent* mouse) override {
-    CHECK_EQ(background_view_, mouse->target());
-    if (mouse->type() == ui::ET_MOUSE_PRESSED && !mouse->handled()) {
-      Close();
-      mouse->SetHandled();
-    }
+  // views::DialogDelegate:
+  virtual ui::ModalType GetModalType() const override {
+    return ui::MODAL_TYPE_SYSTEM;
   }
+  virtual void DeleteDelegate() override { delete this; }
+  virtual views::Widget* GetWidget() override { return scroller_->GetWidget(); }
+  virtual const views::Widget* GetWidget() const override {
+    return scroller_->GetWidget();
+  }
+  virtual views::View* GetContentsView() override { return scroller_; }
+  virtual int GetDialogButtons() const override { return ui::DIALOG_BUTTON_OK; }
+  virtual bool Close() override { return true; }
 
-  virtual void OnGestureEvent(ui::GestureEvent* gesture) override {
-    CHECK_EQ(background_view_, gesture->target());
-    if (gesture->type() == ui::ET_GESTURE_TAP && !gesture->handled()) {
-      Close();
-      gesture->SetHandled();
-    }
-  }
-
-  scoped_ptr<views::Widget> widget_;
-  views::View* background_view_;
   views::View* scroll_content_;
   views::ScrollView* scroller_;
 
   views::View* connect_;
 
   ui::NetworkListView network_list_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkSelector);
 };
 
 }  // namespace
 
 namespace athena {
 
-void CreateNetworkSelector(aura::Window* container) {
-  new NetworkSelector(container);
+void CreateNetworkSelector() {
+  new NetworkSelector();
 }
 
 }  // namespace athena