src/ash/system/user/user_view.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 "ash/system/user/user_view.h"
   6
   7 #include <algorithm>
   8
   9 #include "ash/multi_profile_uma.h"
  10 #include "ash/popup_message.h"
  11 #include "ash/session/session_state_delegate.h"
  12 #include "ash/shell.h"
  13 #include "ash/shell_delegate.h"
  14 #include "ash/system/tray/system_tray.h"
  15 #include "ash/system/tray/system_tray_delegate.h"
  16 #include "ash/system/tray/tray_popup_label_button.h"
  17 #include "ash/system/tray/tray_popup_label_button_border.h"
  18 #include "ash/system/user/button_from_view.h"
  19 #include "ash/system/user/config.h"
  20 #include "ash/system/user/rounded_image_view.h"
  21 #include "ash/system/user/user_card_view.h"
  22 #include "components/user_manager/user_info.h"
  23 #include "grit/ash_resources.h"
  24 #include "grit/ash_strings.h"
  25 #include "ui/base/l10n/l10n_util.h"
  26 #include "ui/base/resource/resource_bundle.h"
  27 #include "ui/views/layout/fill_layout.h"
  28 #include "ui/views/painter.h"
  29 #include "ui/wm/core/shadow_types.h"
  30
  31 namespace ash {
  32 namespace tray {
  33
  34 namespace {
  35
  36 const int kPublicAccountLogoutButtonBorderImagesNormal[] = {
  37     IDR_AURA_TRAY_POPUP_PUBLIC_ACCOUNT_LOGOUT_BUTTON_BORDER,
  38     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_NORMAL_BACKGROUND,
  39     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_NORMAL_BACKGROUND,
  40     IDR_AURA_TRAY_POPUP_PUBLIC_ACCOUNT_LOGOUT_BUTTON_BORDER,
  41     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_NORMAL_BACKGROUND,
  42     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_NORMAL_BACKGROUND,
  43     IDR_AURA_TRAY_POPUP_PUBLIC_ACCOUNT_LOGOUT_BUTTON_BORDER,
  44     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_NORMAL_BACKGROUND,
  45     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_NORMAL_BACKGROUND,
  46 };
  47
  48 const int kPublicAccountLogoutButtonBorderImagesHovered[] = {
  49     IDR_AURA_TRAY_POPUP_PUBLIC_ACCOUNT_LOGOUT_BUTTON_BORDER,
  50     IDR_AURA_TRAY_POPUP_PUBLIC_ACCOUNT_LOGOUT_BUTTON_BORDER,
  51     IDR_AURA_TRAY_POPUP_PUBLIC_ACCOUNT_LOGOUT_BUTTON_BORDER,
  52     IDR_AURA_TRAY_POPUP_PUBLIC_ACCOUNT_LOGOUT_BUTTON_BORDER,
  53     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_HOVER_BACKGROUND,
  54     IDR_AURA_TRAY_POPUP_PUBLIC_ACCOUNT_LOGOUT_BUTTON_BORDER,
  55     IDR_AURA_TRAY_POPUP_PUBLIC_ACCOUNT_LOGOUT_BUTTON_BORDER,
  56     IDR_AURA_TRAY_POPUP_PUBLIC_ACCOUNT_LOGOUT_BUTTON_BORDER,
  57     IDR_AURA_TRAY_POPUP_PUBLIC_ACCOUNT_LOGOUT_BUTTON_BORDER,
  58 };
  59
  60 // When a hover border is used, it is starting this many pixels before the icon
  61 // position.
  62 const int kTrayUserTileHoverBorderInset = 10;
  63
  64 // Offsetting the popup message relative to the tray menu.
  65 const int kPopupMessageOffset = 25;
  66
  67 // Switch to a user with the given |user_index|.
  68 void SwitchUser(ash::MultiProfileIndex user_index) {
  69   // Do not switch users when the log screen is presented.
  70   if (ash::Shell::GetInstance()
  71           ->session_state_delegate()
  72           ->IsUserSessionBlocked())
  73     return;
  74
  75   DCHECK(user_index > 0);
  76   ash::SessionStateDelegate* delegate =
  77       ash::Shell::GetInstance()->session_state_delegate();
  78   ash::MultiProfileUMA::RecordSwitchActiveUser(
  79       ash::MultiProfileUMA::SWITCH_ACTIVE_USER_BY_TRAY);
  80   delegate->SwitchActiveUser(delegate->GetUserInfo(user_index)->GetUserID());
  81 }
  82
  83 class LogoutButton : public TrayPopupLabelButton {
  84  public:
  85   // If |placeholder| is true, button is used as placeholder. That means that
  86   // button is inactive and is not painted, but consume the same ammount of
  87   // space, as if it was painted.
  88   LogoutButton(views::ButtonListener* listener,
  89                const base::string16& text,
  90                bool placeholder)
  91       : TrayPopupLabelButton(listener, text), placeholder_(placeholder) {
  92     SetEnabled(!placeholder_);
  93   }
  94
  95   virtual ~LogoutButton() {}
  96
  97  private:
  98   virtual void Paint(gfx::Canvas* canvas,
  99                      const views::CullSet& cull_set) OVERRIDE {
 100     // Just skip paint if this button used as a placeholder.
 101     if (!placeholder_)
 102       TrayPopupLabelButton::Paint(canvas, cull_set);
 103   }
 104
 105   bool placeholder_;
 106   DISALLOW_COPY_AND_ASSIGN(LogoutButton);
 107 };
 108
 109 class UserViewMouseWatcherHost : public views::MouseWatcherHost {
 110  public:
 111   explicit UserViewMouseWatcherHost(const gfx::Rect& screen_area)
 112       : screen_area_(screen_area) {}
 113   virtual ~UserViewMouseWatcherHost() {}
 114
 115   // Implementation of MouseWatcherHost.
 116   virtual bool Contains(const gfx::Point& screen_point,
 117                         views::MouseWatcherHost::MouseEventType type) OVERRIDE {
 118     return screen_area_.Contains(screen_point);
 119   }
 120
 121  private:
 122   gfx::Rect screen_area_;
 123
 124   DISALLOW_COPY_AND_ASSIGN(UserViewMouseWatcherHost);
 125 };
 126
 127 // The menu item view which gets shown when the user clicks in multi profile
 128 // mode onto the user item.
 129 class AddUserView : public views::View {
 130  public:
 131   // The |owner| is the view for which this view gets created.
 132   AddUserView(ButtonFromView* owner);
 133   virtual ~AddUserView();
 134
 135   // Get the anchor view for a message.
 136   views::View* anchor() { return anchor_; }
 137
 138  private:
 139   // Overridden from views::View.
 140   virtual gfx::Size GetPreferredSize() const OVERRIDE;
 141
 142   // Create the additional client content for this item.
 143   void AddContent();
 144
 145   // This is the content we create and show.
 146   views::View* add_user_;
 147
 148   // This is the owner view of this item.
 149   ButtonFromView* owner_;
 150
 151   // The anchor view for targetted bubble messages.
 152   views::View* anchor_;
 153
 154   DISALLOW_COPY_AND_ASSIGN(AddUserView);
 155 };
 156
 157 AddUserView::AddUserView(ButtonFromView* owner)
 158     : add_user_(NULL), owner_(owner), anchor_(NULL) {
 159   AddContent();
 160   owner_->ForceBorderVisible(true);
 161 }
 162
 163 AddUserView::~AddUserView() {
 164   owner_->ForceBorderVisible(false);
 165 }
 166
 167 gfx::Size AddUserView::GetPreferredSize() const {
 168   return owner_->bounds().size();
 169 }
 170
 171 void AddUserView::AddContent() {
 172   SetLayoutManager(new views::FillLayout());
 173   set_background(views::Background::CreateSolidBackground(kBackgroundColor));
 174
 175   add_user_ = new views::View;
 176   add_user_->SetBorder(views::Border::CreateEmptyBorder(
 177       0, kTrayUserTileHoverBorderInset, 0, 0));
 178
 179   add_user_->SetLayoutManager(new views::BoxLayout(
 180       views::BoxLayout::kHorizontal, 0, 0, kTrayPopupPaddingBetweenItems));
 181   AddChildViewAt(add_user_, 0);
 182
 183   // Add the [+] icon which is also the anchor for messages.
 184   RoundedImageView* icon = new RoundedImageView(kTrayAvatarCornerRadius, true);
 185   anchor_ = icon;
 186   icon->SetImage(*ui::ResourceBundle::GetSharedInstance()
 187                       .GetImageNamed(IDR_AURA_UBER_TRAY_ADD_MULTIPROFILE_USER)
 188                       .ToImageSkia(),
 189                  gfx::Size(kTrayAvatarSize, kTrayAvatarSize));
 190   add_user_->AddChildView(icon);
 191
 192   // Add the command text.
 193   views::Label* command_label = new views::Label(
 194       l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_SIGN_IN_ANOTHER_ACCOUNT));
 195   command_label->SetHorizontalAlignment(gfx::ALIGN_LEFT);
 196   add_user_->AddChildView(command_label);
 197 }
 198
 199 }  // namespace
 200
 201 UserView::UserView(SystemTrayItem* owner,
 202                    user::LoginStatus login,
 203                    MultiProfileIndex index,
 204                    bool for_detailed_view)
 205     : multiprofile_index_(index),
 206       user_card_view_(NULL),
 207       owner_(owner),
 208       is_user_card_button_(false),
 209       logout_button_(NULL),
 210       add_user_disabled_(false),
 211       for_detailed_view_(for_detailed_view),
 212       focus_manager_(NULL) {
 213   CHECK_NE(user::LOGGED_IN_NONE, login);
 214   if (!index) {
 215     // Only the logged in user will have a background. All other users will have
 216     // to allow the TrayPopupContainer highlighting the menu line.
 217     set_background(views::Background::CreateSolidBackground(
 218         login == user::LOGGED_IN_PUBLIC ? kPublicAccountBackgroundColor
 219                                         : kBackgroundColor));
 220   }
 221   SetLayoutManager(new views::BoxLayout(
 222       views::BoxLayout::kHorizontal, 0, 0, kTrayPopupPaddingBetweenItems));
 223   // The logout button must be added before the user card so that the user card
 224   // can correctly calculate the remaining available width.
 225   // Note that only the current multiprofile user gets a button.
 226   if (!multiprofile_index_)
 227     AddLogoutButton(login);
 228   AddUserCard(login);
 229 }
 230
 231 UserView::~UserView() {
 232   RemoveAddUserMenuOption();
 233 }
 234
 235 void UserView::MouseMovedOutOfHost() {
 236   RemoveAddUserMenuOption();
 237 }
 238
 239 TrayUser::TestState UserView::GetStateForTest() const {
 240   if (add_menu_option_.get()) {
 241     return add_user_disabled_ ? TrayUser::ACTIVE_BUT_DISABLED
 242                               : TrayUser::ACTIVE;
 243   }
 244
 245   if (!is_user_card_button_)
 246     return TrayUser::SHOWN;
 247
 248   return static_cast<ButtonFromView*>(user_card_view_)->is_hovered_for_test()
 249              ? TrayUser::HOVERED
 250              : TrayUser::SHOWN;
 251 }
 252
 253 gfx::Rect UserView::GetBoundsInScreenOfUserButtonForTest() {
 254   DCHECK(user_card_view_);
 255   return user_card_view_->GetBoundsInScreen();
 256 }
 257
 258 gfx::Size UserView::GetPreferredSize() const {
 259   gfx::Size size = views::View::GetPreferredSize();
 260   // Only the active user panel will be forced to a certain height.
 261   if (!multiprofile_index_) {
 262     size.set_height(
 263         std::max(size.height(), kTrayPopupItemHeight + GetInsets().height()));
 264   }
 265   return size;
 266 }
 267
 268 int UserView::GetHeightForWidth(int width) const {
 269   return GetPreferredSize().height();
 270 }
 271
 272 void UserView::Layout() {
 273   gfx::Rect contents_area(GetContentsBounds());
 274   if (user_card_view_ && logout_button_) {
 275     // Give the logout button the space it requests.
 276     gfx::Rect logout_area = contents_area;
 277     logout_area.ClampToCenteredSize(logout_button_->GetPreferredSize());
 278     logout_area.set_x(contents_area.right() - logout_area.width());
 279
 280     // Give the remaining space to the user card.
 281     gfx::Rect user_card_area = contents_area;
 282     int remaining_width = contents_area.width() - logout_area.width();
 283     if (IsMultiProfileSupportedAndUserActive() ||
 284         IsMultiAccountSupportedAndUserActive()) {
 285       // In multiprofile/multiaccount case |user_card_view_| and
 286       // |logout_button_| have to have the same height.
 287       int y = std::min(user_card_area.y(), logout_area.y());
 288       int height = std::max(user_card_area.height(), logout_area.height());
 289       logout_area.set_y(y);
 290       logout_area.set_height(height);
 291       user_card_area.set_y(y);
 292       user_card_area.set_height(height);
 293
 294       // In multiprofile mode we have also to increase the size of the card by
 295       // the size of the border to make it overlap with the logout button.
 296       user_card_area.set_width(std::max(0, remaining_width + 1));
 297
 298       // To make the logout button symmetrical with the user card we also make
 299       // the button longer by the same size the hover area in front of the icon
 300       // got inset.
 301       logout_area.set_width(logout_area.width() +
 302                             kTrayUserTileHoverBorderInset);
 303     } else {
 304       // In all other modes we have to make sure that there is enough spacing
 305       // between the two.
 306       remaining_width -= kTrayPopupPaddingBetweenItems;
 307     }
 308     user_card_area.set_width(remaining_width);
 309     user_card_view_->SetBoundsRect(user_card_area);
 310     logout_button_->SetBoundsRect(logout_area);
 311   } else if (user_card_view_) {
 312     user_card_view_->SetBoundsRect(contents_area);
 313   } else if (logout_button_) {
 314     logout_button_->SetBoundsRect(contents_area);
 315   }
 316 }
 317
 318 void UserView::ButtonPressed(views::Button* sender, const ui::Event& event) {
 319   if (sender == logout_button_) {
 320     Shell::GetInstance()->metrics()->RecordUserMetricsAction(
 321         ash::UMA_STATUS_AREA_SIGN_OUT);
 322     RemoveAddUserMenuOption();
 323     Shell::GetInstance()->system_tray_delegate()->SignOut();
 324   } else if (sender == user_card_view_ && !multiprofile_index_ &&
 325              IsMultiAccountSupportedAndUserActive()) {
 326     owner_->TransitionDetailedView();
 327   } else if (sender == user_card_view_ &&
 328              IsMultiProfileSupportedAndUserActive()) {
 329     if (!multiprofile_index_) {
 330       ToggleAddUserMenuOption();
 331     } else {
 332       RemoveAddUserMenuOption();
 333       SwitchUser(multiprofile_index_);
 334       // Since the user list is about to change the system menu should get
 335       // closed.
 336       owner_->system_tray()->CloseSystemBubble();
 337     }
 338   } else if (add_menu_option_.get() &&
 339              sender == add_menu_option_->GetContentsView()) {
 340     RemoveAddUserMenuOption();
 341     // Let the user add another account to the session.
 342     MultiProfileUMA::RecordSigninUser(MultiProfileUMA::SIGNIN_USER_BY_TRAY);
 343     Shell::GetInstance()->system_tray_delegate()->ShowUserLogin();
 344     owner_->system_tray()->CloseSystemBubble();
 345   } else {
 346     NOTREACHED();
 347   }
 348 }
 349
 350 void UserView::OnWillChangeFocus(View* focused_before, View* focused_now) {
 351   if (focused_now)
 352     RemoveAddUserMenuOption();
 353 }
 354
 355 void UserView::OnDidChangeFocus(View* focused_before, View* focused_now) {
 356   // Nothing to do here.
 357 }
 358
 359 void UserView::AddLogoutButton(user::LoginStatus login) {
 360   const base::string16 title =
 361       user::GetLocalizedSignOutStringForStatus(login, true);
 362   TrayPopupLabelButton* logout_button =
 363       new LogoutButton(this, title, for_detailed_view_);
 364   logout_button->SetAccessibleName(title);
 365   logout_button_ = logout_button;
 366   // In public account mode, the logout button border has a custom color.
 367   if (login == user::LOGGED_IN_PUBLIC) {
 368     scoped_ptr<TrayPopupLabelButtonBorder> border(
 369         new TrayPopupLabelButtonBorder());
 370     border->SetPainter(false,
 371                        views::Button::STATE_NORMAL,
 372                        views::Painter::CreateImageGridPainter(
 373                            kPublicAccountLogoutButtonBorderImagesNormal));
 374     border->SetPainter(false,
 375                        views::Button::STATE_HOVERED,
 376                        views::Painter::CreateImageGridPainter(
 377                            kPublicAccountLogoutButtonBorderImagesHovered));
 378     border->SetPainter(false,
 379                        views::Button::STATE_PRESSED,
 380                        views::Painter::CreateImageGridPainter(
 381                            kPublicAccountLogoutButtonBorderImagesHovered));
 382     logout_button_->SetBorder(border.PassAs<views::Border>());
 383   }
 384   AddChildView(logout_button_);
 385 }
 386
 387 void UserView::AddUserCard(user::LoginStatus login) {
 388   // Add padding around the panel.
 389   SetBorder(views::Border::CreateEmptyBorder(kTrayPopupUserCardVerticalPadding,
 390                                              kTrayPopupPaddingHorizontal,
 391                                              kTrayPopupUserCardVerticalPadding,
 392                                              kTrayPopupPaddingHorizontal));
 393
 394   views::TrayBubbleView* bubble_view =
 395       owner_->system_tray()->GetSystemBubble()->bubble_view();
 396   int max_card_width =
 397       bubble_view->GetMaximumSize().width() -
 398       (2 * kTrayPopupPaddingHorizontal + kTrayPopupPaddingBetweenItems);
 399   if (logout_button_)
 400     max_card_width -= logout_button_->GetPreferredSize().width();
 401   user_card_view_ =
 402       new UserCardView(login, max_card_width, multiprofile_index_);
 403   bool clickable = IsMultiProfileSupportedAndUserActive() ||
 404                    IsMultiAccountSupportedAndUserActive();
 405   if (clickable) {
 406     // To allow the border to start before the icon, reduce the size before and
 407     // add an inset to the icon to get the spacing.
 408     if (!multiprofile_index_) {
 409       SetBorder(views::Border::CreateEmptyBorder(
 410           kTrayPopupUserCardVerticalPadding,
 411           kTrayPopupPaddingHorizontal - kTrayUserTileHoverBorderInset,
 412           kTrayPopupUserCardVerticalPadding,
 413           kTrayPopupPaddingHorizontal));
 414       user_card_view_->SetBorder(views::Border::CreateEmptyBorder(
 415           0, kTrayUserTileHoverBorderInset, 0, 0));
 416     }
 417     gfx::Insets insets = gfx::Insets(1, 1, 1, 1);
 418     views::View* contents_view = user_card_view_;
 419     ButtonFromView* button = NULL;
 420     if (!for_detailed_view_) {
 421       if (multiprofile_index_) {
 422         // Since the activation border needs to be drawn around the tile, we
 423         // have to put the tile into another view which fills the menu panel,
 424         // but keeping the offsets of the content.
 425         contents_view = new views::View();
 426         contents_view->SetBorder(views::Border::CreateEmptyBorder(
 427             kTrayPopupUserCardVerticalPadding,
 428             kTrayPopupPaddingHorizontal,
 429             kTrayPopupUserCardVerticalPadding,
 430             kTrayPopupPaddingHorizontal));
 431         contents_view->SetLayoutManager(new views::FillLayout());
 432         SetBorder(views::Border::CreateEmptyBorder(0, 0, 0, 0));
 433         contents_view->AddChildView(user_card_view_);
 434         insets = gfx::Insets(1, 1, 1, 3);
 435       }
 436       button = new ButtonFromView(contents_view,
 437                                   this,
 438                                   !multiprofile_index_,
 439                                   insets);
 440       // TODO(skuhne): For accessibility we need to call |SetAccessibleName|
 441       // with a useful name (string freeze for M37 has passed).
 442     } else {
 443       // We want user card for detailed view to have exactly the same look
 444       // as user card for default view. That's why we wrap it in a button
 445       // without click listener and special hover behavior.
 446       button = new ButtonFromView(contents_view, NULL, false, insets);
 447     }
 448     // A click on the button should not trigger a focus change.
 449     button->set_request_focus_on_press(false);
 450     user_card_view_ = button;
 451     is_user_card_button_ = true;
 452   }
 453   AddChildViewAt(user_card_view_, 0);
 454   // Card for supervised user can consume more space than currently
 455   // available. In that case we should increase system bubble's width.
 456   if (login == user::LOGGED_IN_PUBLIC)
 457     bubble_view->SetWidth(GetPreferredSize().width());
 458 }
 459
 460 void UserView::ToggleAddUserMenuOption() {
 461   if (add_menu_option_.get()) {
 462     RemoveAddUserMenuOption();
 463     return;
 464   }
 465
 466   // Note: We do not need to install a global event handler to delete this
 467   // item since it will destroyed automatically before the menu / user menu item
 468   // gets destroyed..
 469   add_menu_option_.reset(new views::Widget);
 470   views::Widget::InitParams params;
 471   params.type = views::Widget::InitParams::TYPE_TOOLTIP;
 472   params.keep_on_top = true;
 473   params.context = this->GetWidget()->GetNativeWindow();
 474   params.accept_events = true;
 475   params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
 476   params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW;
 477   add_menu_option_->Init(params);
 478   add_menu_option_->SetOpacity(0xFF);
 479   add_menu_option_->GetNativeWindow()->set_owned_by_parent(false);
 480   SetShadowType(add_menu_option_->GetNativeView(), wm::SHADOW_TYPE_NONE);
 481
 482   // Position it below our user card.
 483   gfx::Rect bounds = user_card_view_->GetBoundsInScreen();
 484   bounds.set_y(bounds.y() + bounds.height());
 485   add_menu_option_->SetBounds(bounds);
 486
 487   // Show the content.
 488   add_menu_option_->SetAlwaysOnTop(true);
 489   add_menu_option_->Show();
 490
 491   AddUserView* add_user_view =
 492       new AddUserView(static_cast<ButtonFromView*>(user_card_view_));
 493
 494   const SessionStateDelegate* delegate =
 495       Shell::GetInstance()->session_state_delegate();
 496
 497   bool multi_profile_allowed =
 498       delegate->IsMultiProfileAllowedByPrimaryUserPolicy();
 499   add_user_disabled_ = (delegate->NumberOfLoggedInUsers() >=
 500                         delegate->GetMaximumNumberOfLoggedInUsers()) ||
 501                        !multi_profile_allowed;
 502
 503   ButtonFromView* button = new ButtonFromView(
 504       add_user_view,
 505       add_user_disabled_ ? NULL : this,
 506       !add_user_disabled_,
 507       gfx::Insets(1, 1, 1, 1));
 508   button->set_request_focus_on_press(false);
 509   button->SetAccessibleName(
 510       l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_SIGN_IN_ANOTHER_ACCOUNT));
 511   button->ForceBorderVisible(true);
 512   add_menu_option_->SetContentsView(button);
 513
 514   if (add_user_disabled_) {
 515     ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
 516     int message_id;
 517     if (!multi_profile_allowed)
 518       message_id = IDS_ASH_STATUS_TRAY_MESSAGE_NOT_ALLOWED_PRIMARY_USER;
 519     else
 520       message_id = IDS_ASH_STATUS_TRAY_MESSAGE_CANNOT_ADD_USER;
 521
 522     popup_message_.reset(new PopupMessage(
 523         bundle.GetLocalizedString(IDS_ASH_STATUS_TRAY_CAPTION_CANNOT_ADD_USER),
 524         bundle.GetLocalizedString(message_id),
 525         PopupMessage::ICON_WARNING,
 526         add_user_view->anchor(),
 527         views::BubbleBorder::TOP_LEFT,
 528         gfx::Size(parent()->bounds().width() - kPopupMessageOffset, 0),
 529         2 * kPopupMessageOffset));
 530   } else {
 531     // We activate the entry automatically if invoked with focus.
 532     if (user_card_view_->HasFocus()) {
 533       button->GetFocusManager()->SetFocusedView(button);
 534       user_card_view_->GetFocusManager()->SetFocusedView(button);
 535     }
 536   }
 537   // Find the screen area which encloses both elements and sets then a mouse
 538   // watcher which will close the "menu".
 539   gfx::Rect area = user_card_view_->GetBoundsInScreen();
 540   area.set_height(2 * area.height());
 541   mouse_watcher_.reset(
 542       new views::MouseWatcher(new UserViewMouseWatcherHost(area), this));
 543   mouse_watcher_->Start();
 544   // Install a listener to focus changes so that we can remove the card when
 545   // the focus gets changed. When called through the destruction of the bubble,
 546   // the FocusManager cannot be determined anymore and we remember it here.
 547   focus_manager_ = user_card_view_->GetFocusManager();
 548   focus_manager_->AddFocusChangeListener(this);
 549 }
 550
 551 void UserView::RemoveAddUserMenuOption() {
 552   if (!add_menu_option_.get())
 553     return;
 554   focus_manager_->RemoveFocusChangeListener(this);
 555   focus_manager_ = NULL;
 556   if (user_card_view_->GetFocusManager())
 557     user_card_view_->GetFocusManager()->ClearFocus();
 558   popup_message_.reset();
 559   mouse_watcher_.reset();
 560   add_menu_option_.reset();
 561 }
 562
 563 }  // namespace tray
 564 }  // namespace ash