Bringing back fast user switching on desktop user menu

chrome/browser/ui/views/profiles/profile_chooser_view.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 "chrome/browser/ui/views/profiles/profile_chooser_view.h"
 
 #include "base/macros.h"
 #include "base/metrics/user_metrics.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 612 matching lines @@
 void ProfileChooserView::ShowBubble(
     profiles::BubbleViewMode view_mode,
     profiles::TutorialMode tutorial_mode,
     const signin::ManageAccountsParams& manage_accounts_params,
     signin_metrics::AccessPoint access_point,
     views::View* anchor_view,
     Browser* browser) {
   // Don't start creating the view if it would be an empty fast user switcher.
   // It has to happen here to prevent the view system from creating an empty
   // container.
+  // Same for material design user menu since fast profile switcher will be
+  // migrated to the left-click menu.
   if (view_mode == profiles::BUBBLE_VIEW_MODE_FAST_PROFILE_CHOOSER &&
-      !profiles::HasProfileSwitchTargets(browser->profile())) {
+      (!profiles::HasProfileSwitchTargets(browser->profile()) ||
+       switches::IsMaterialDesignUserMenu())) {
     return;
   }
 
   if (IsShowing()) {
     if (tutorial_mode != profiles::TUTORIAL_MODE_NONE) {
       profile_bubble_->tutorial_mode_ = tutorial_mode;
       profile_bubble_->ShowViewFromMode(view_mode);
     }
     return;
   }
@@ skipping 46 matching lines @@
 
 void ProfileChooserView::ResetView() {
   open_other_profile_indexes_map_.clear();
   delete_account_button_map_.clear();
   reauth_account_button_map_.clear();
   manage_accounts_link_ = NULL;
   signin_current_profile_link_ = NULL;
   auth_error_email_button_ = NULL;
   current_profile_photo_ = NULL;
   current_profile_name_ = NULL;
+  guest_profile_button_ = NULL;
   users_button_ = NULL;
   go_incognito_button_ = NULL;
   lock_button_ = NULL;
   add_account_link_ = NULL;
   gaia_signin_cancel_button_ = NULL;
   remove_account_button_ = NULL;
   account_removal_cancel_button_ = NULL;
   add_person_button_ = NULL;
   disconnect_button_ = NULL;
   switch_user_cancel_button_ = NULL;
@@ skipping 184 matching lines @@
 
 bool ProfileChooserView::HandleContextMenu(
     const content::ContextMenuParams& params) {
   // Suppresses the context menu because some features, such as inspecting
   // elements, are not appropriate in a bubble.
   return true;
 }
 
 void ProfileChooserView::ButtonPressed(views::Button* sender,
                                        const ui::Event& event) {
-  if (sender == users_button_) {
+  if (sender == guest_profile_button_) {
+    PrefService* service = g_browser_process->local_state();
+    DCHECK(service);
+    if (service->GetBoolean(prefs::kBrowserGuestModeEnabled)) {
+      profiles::SwitchToGuestProfile(ProfileManager::CreateCallback());
+    } else {
+      // The UI should have prevented the user from allowing the selection of
+      // guest mode.
+      NOTREACHED();
+    }
+  } else if (sender == users_button_) {
     // If this is a guest session, close all the guest browser windows.
     if (browser_->profile()->IsGuestSession()) {
       profiles::CloseGuestProfileWindows();
     } else {
       UserManager::Show(base::FilePath(),
                         profiles::USER_MANAGER_NO_TUTORIAL,
                         profiles::USER_MANAGER_SELECT_PROFILE_NO_ACTION);
     }
     PostActionPerformed(ProfileMetrics::PROFILE_DESKTOP_MENU_OPEN_USER_MANAGER);
   } else if (sender == go_incognito_button_) {
@@ skipping 165 matching lines @@
   // Separate items into active and alternatives.
   Indexes other_profiles;
   views::View* tutorial_view = NULL;
   views::View* current_profile_view = NULL;
   views::View* current_profile_accounts = NULL;
   views::View* option_buttons_view = NULL;
   for (size_t i = 0; i < avatar_menu->GetNumberOfItems(); ++i) {
     const AvatarMenu::Item& item = avatar_menu->GetItemAt(i);
     if (item.active) {
       option_buttons_view = CreateOptionsView(
-          item.signed_in && profiles::IsLockAvailable(browser_->profile()));
+          item.signed_in && profiles::IsLockAvailable(browser_->profile()),
+          avatar_menu);
       current_profile_view = CreateCurrentProfileView(item, false);
       if (IsProfileChooser(view_mode_)) {
         tutorial_view = CreateTutorialViewIfNeeded(item);
       } else {
         current_profile_accounts = CreateCurrentProfileAccountsView(item);
       }
     } else {
       other_profiles.push_back(i);
     }
   }
 
   if (tutorial_view) {
     // TODO(mlerman): update UMA stats for the new tutorial.
     layout->StartRow(1, 0);
     layout->AddView(tutorial_view);
   } else {
     tutorial_mode_ = profiles::TUTORIAL_MODE_NONE;
   }
 
   if (!current_profile_view) {
     // Guest windows don't have an active profile.
     current_profile_view = CreateGuestProfileView();
-    option_buttons_view = CreateOptionsView(false);
+    option_buttons_view = CreateOptionsView(false, avatar_menu);
   }
 
   layout->StartRow(1, 0);
   layout->AddView(current_profile_view);
 
   if (!IsProfileChooser(view_mode_)) {
     DCHECK(current_profile_accounts);
     layout->StartRow(0, 0);
     layout->AddView(new views::Separator(views::Separator::HORIZONTAL));
     layout->StartRow(1, 0);
@@ skipping 363 matching lines @@
 
     layout->StartRow(1, 0);
     layout->AddView(new views::Separator(views::Separator::HORIZONTAL));
     layout->StartRow(1, 0);
     layout->AddView(button);
   }
 
   return view;
 }
 
-views::View* ProfileChooserView::CreateOptionsView(bool display_lock) {
+views::View* ProfileChooserView::CreateOptionsView(
+    bool display_lock,
+    AvatarMenu* avatar_menu) {
   views::View* view = new views::View();
   views::GridLayout* layout = CreateSingleColumnLayout(view, kFixedMenuWidth);
 
+  const int kIconSize = switches::IsMaterialDesignUserMenu() ? 20 : 16;
+  if (switches::IsMaterialDesignUserMenu()) {
+    // Add the user switching buttons
+    const int kProfileIconSize = 18;
+    layout->StartRowWithPadding(1, 0, 0,
+                                views::kRelatedControlVerticalSpacing);
+    for (size_t i = 0; i < avatar_menu->GetNumberOfItems(); ++i) {
+      const AvatarMenu::Item& item = avatar_menu->GetItemAt(i);
+      if (!item.active) {
+        gfx::Image item_icon;
+        AvatarMenu::GetImageForMenuButton(item.profile_path, &item_icon);
+        gfx::Image image = profiles::GetSizedAvatarIcon(
+            item_icon, true, kProfileIconSize, kProfileIconSize, true);

[Roger Tawa OOO till Jul 10th, 2016/06/13 15:20:44]

Instead of using true|false for last arg (the new one you just added), define
enums like "circular" or "square".  This makes the code more readable.

[Jane, 2016/06/13 17:53:42]

Done.

+        views::LabelButton* button = new BackgroundColorHoverButton(
+            this,
+            profiles::GetProfileSwitcherTextForItem(item),
+            *image.ToImageSkia());
+        open_other_profile_indexes_map_[button] = i;
+
+        layout->StartRow(1, 0);
+        layout->AddView(button);
+      }
+    }
+
+    // Add the "Guest" button for browsing as guest
+    if (!browser_->profile()->IsGuestSession()) {
+      guest_profile_button_ = new BackgroundColorHoverButton(
+          this,
+          l10n_util::GetStringUTF16(IDS_GUEST_PROFILE_NAME),
+          gfx::CreateVectorIcon(gfx::VectorIconId::ACCOUNT_CIRCLE,
+                                kIconSize, gfx::kChromeIconGrey));
+      layout->StartRow(1, 0);
+      layout->AddView(guest_profile_button_);
+    }
+  }
+
   base::string16 text = browser_->profile()->IsGuestSession() ?
       l10n_util::GetStringUTF16(IDS_PROFILES_EXIT_GUEST) :
       l10n_util::GetStringUTF16(IDS_PROFILES_SWITCH_USERS_BUTTON);
+  gfx::VectorIconId settings_icon = gfx::VectorIconId::ACCOUNT_BOX;
   if (!browser_->profile()->IsGuestSession()
       && switches::IsMaterialDesignUserMenu()) {
     text = l10n_util::GetStringUTF16(IDS_PROFILES_MANAGE_USERS_BUTTON);
+    settings_icon = gfx::VectorIconId::SETTINGS;
   }
-  const int kIconSize = 16;
-
-  gfx::VectorIconId settings_icon = switches::IsMaterialDesignUserMenu() ?
-      gfx::VectorIconId::SETTINGS : gfx::VectorIconId::ACCOUNT_BOX;
   users_button_ = new BackgroundColorHoverButton(
       this, text, gfx::CreateVectorIcon(settings_icon, kIconSize,
                                         gfx::kChromeIconGrey));
 
   layout->StartRow(1, 0);
   layout->AddView(users_button_);
 
   if (!switches::IsMaterialDesignUserMenu() && ShouldShowGoIncognito()) {
     layout->StartRow(1, 0);
     layout->AddView(new views::Separator(views::Separator::HORIZONTAL));
 
     ui::ResourceBundle* rb = &ui::ResourceBundle::GetSharedInstance();
     go_incognito_button_ = new BackgroundColorHoverButton(
         this,
         l10n_util::GetStringUTF16(IDS_PROFILES_GO_INCOGNITO_BUTTON),
         *rb->GetImageSkiaNamed(IDR_ICON_PROFILES_MENU_INCOGNITO));
     layout->StartRow(1, 0);
     layout->AddView(go_incognito_button_);
   }
 
   if (display_lock) {
-    layout->StartRow(1, 0);
-    layout->AddView(new views::Separator(views::Separator::HORIZONTAL));
+    if (!switches::IsMaterialDesignUserMenu()) {
+      layout->StartRow(1, 0);
+      layout->AddView(new views::Separator(views::Separator::HORIZONTAL));
+    }
 
     lock_button_ = new BackgroundColorHoverButton(
         this, l10n_util::GetStringUTF16(IDS_PROFILES_PROFILE_SIGNOUT_BUTTON),
         gfx::CreateVectorIcon(gfx::VectorIconId::LOCK, kIconSize,
                               gfx::kChromeIconGrey));
     layout->StartRow(1, 0);
     layout->AddView(lock_button_);
   }
+
+  if (switches::IsMaterialDesignUserMenu())
+      layout->StartRowWithPadding(1, 0, 0,
+                                  views::kRelatedControlVerticalSpacing);

[Roger Tawa OOO till Jul 10th, 2016/06/13 15:20:44]

Add { and } when the block of the if statement spans more than one line.

[Jane, 2016/06/13 17:53:42]

Done.

   return view;
 }
 
 views::View* ProfileChooserView::CreateSupervisedUserDisclaimerView() {
   views::View* view = new views::View();
   views::GridLayout* layout = CreateSingleColumnLayout(
       view, kFixedMenuWidth - 2 * views::kButtonHEdgeMarginNew);
   layout->SetInsets(views::kRelatedControlVerticalSpacing,
                     views::kButtonHEdgeMarginNew,
                     views::kRelatedControlVerticalSpacing,
@@ skipping 340 matching lines @@
       IncognitoModePrefs::GetAvailability(browser_->profile()->GetPrefs()) !=
           IncognitoModePrefs::DISABLED;
   return incognito_available && !browser_->profile()->IsGuestSession();
 }
 
 void ProfileChooserView::PostActionPerformed(
     ProfileMetrics::ProfileDesktopMenu action_performed) {
   ProfileMetrics::LogProfileDesktopMenu(action_performed, gaia_service_type_);
   gaia_service_type_ = signin::GAIA_SERVICE_TYPE_NONE;
 }