Customize user details in ash system bubble for public account mode

ash/system/user/tray_user.cc

 // Copyright (c) 2012 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 "ash/system/user/tray_user.h"
 
+#include <algorithm>
+#include <climits>
+#include <vector>
+
 #include "ash/shell.h"
+#include "ash/system/tray/system_tray.h"
 #include "ash/system/tray/system_tray_delegate.h"
 #include "ash/system/tray/tray_constants.h"
 #include "ash/system/tray/tray_item_view.h"
 #include "ash/system/tray/tray_views.h"
+#include "base/i18n/rtl.h"
+#include "base/logging.h"
+#include "base/memory/scoped_vector.h"
+#include "base/string16.h"
+#include "base/string_util.h"
 #include "base/utf_string_conversions.h"
+#include "grit/ash_resources.h"
 #include "grit/ash_strings.h"
 #include "skia/ext/image_operations.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkPaint.h"
 #include "third_party/skia/include/core/SkPath.h"
+#include "ui/base/l10n/l10n_util.h"
+#include "ui/base/range/range.h"
 #include "ui/base/resource/resource_bundle.h"
+#include "ui/base/text/text_elider.h"
 #include "ui/gfx/canvas.h"
+#include "ui/gfx/font.h"
 #include "ui/gfx/image/image.h"
 #include "ui/gfx/image/image_skia_operations.h"
+#include "ui/gfx/insets.h"
+#include "ui/gfx/rect.h"
+#include "ui/gfx/render_text.h"
 #include "ui/gfx/size.h"
 #include "ui/gfx/skia_util.h"
+#include "ui/views/border.h"
+#include "ui/views/bubble/tray_bubble_view.h"
+#include "ui/views/controls/button/border_images.h"
 #include "ui/views/controls/button/button.h"
-#include "ui/views/controls/button/text_button.h"
+#include "ui/views/controls/button/custom_button.h"
 #include "ui/views/controls/image_view.h"
 #include "ui/views/controls/label.h"
+#include "ui/views/controls/link.h"
+#include "ui/views/controls/link_listener.h"
 #include "ui/views/layout/box_layout.h"
 #include "ui/views/view.h"
 #include "ui/views/widget/widget.h"
 
 namespace {
 
-const int kUserInfoVerticalPadding = 10;
+const int kUserDetailsVerticalPadding = 5;
+const int kUserCardVerticalPadding = 10;
+const int kProfileRoundedCornerRadius = 2;
 const int kUserIconSize = 27;
-const int kProfileRoundedCornerRadius = 2;
+
+// The invisible word joiner character, used as a marker to indicate the start
+// and end of the user's display name in the public account user card's text.
+const char16 kDisplayNameMark[] = { 0x2060 };
+
+const int kPublicAccountLogoutButtonBorderImagesNormal[] = {
+    IDR_AURA_TRAY_POPUP_PUBLIC_ACCOUNT_LOGOUT_BUTTON_BORDER,
+    IDR_AURA_TRAY_POPUP_LABEL_BUTTON_NORMAL_BACKGROUND,
+    IDR_AURA_TRAY_POPUP_LABEL_BUTTON_NORMAL_BACKGROUND,
+    IDR_AURA_TRAY_POPUP_PUBLIC_ACCOUNT_LOGOUT_BUTTON_BORDER,
+    IDR_AURA_TRAY_POPUP_LABEL_BUTTON_NORMAL_BACKGROUND,
+    IDR_AURA_TRAY_POPUP_LABEL_BUTTON_NORMAL_BACKGROUND,
+    IDR_AURA_TRAY_POPUP_PUBLIC_ACCOUNT_LOGOUT_BUTTON_BORDER,
+    IDR_AURA_TRAY_POPUP_LABEL_BUTTON_NORMAL_BACKGROUND,
+    IDR_AURA_TRAY_POPUP_LABEL_BUTTON_NORMAL_BACKGROUND,
+};
 
 }  // namespace
 
 namespace ash {
 namespace internal {
 
 namespace tray {
 
 // A custom image view with rounded edges.
 class RoundedImageView : public views::View {
  public:
   // Constructs a new rounded image view with rounded corners of radius
   // |corner_radius|.
-  explicit RoundedImageView(int corner_radius) : corner_radius_(corner_radius) {
-  }
-
-  virtual ~RoundedImageView() {
-  }
+  explicit RoundedImageView(int corner_radius);
+  virtual ~RoundedImageView();
 
   // Set the image that should be displayed from a pointer. The pointer
   // contents is copied in the receiver's image.
-  void SetImage(const gfx::ImageSkia& img, const gfx::Size& size) {
-    image_ = img;
-    image_size_ = size;
-
-    // Try to get the best image quality for the avatar.
-    resized_ = gfx::ImageSkiaOperations::CreateResizedImage(image_,
-        skia::ImageOperations::RESIZE_BEST, size);
-    if (GetWidget() && visible()) {
-      PreferredSizeChanged();
-      SchedulePaint();
-    }
-  }
-
-  // Overridden from views::View.
-  virtual gfx::Size GetPreferredSize() OVERRIDE {
-    return gfx::Size(image_size_.width() + GetInsets().width(),
-                     image_size_.height() + GetInsets().height());
-  }
-
-  virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE {
-    View::OnPaint(canvas);
-    gfx::Rect image_bounds(size());
-    image_bounds.ClampToCenteredSize(GetPreferredSize());
-    image_bounds.Inset(GetInsets());
-    const SkScalar kRadius = SkIntToScalar(corner_radius_);
-    SkPath path;
-    path.addRoundRect(gfx::RectToSkRect(image_bounds), kRadius, kRadius);
-    SkPaint paint;
-    paint.setAntiAlias(true);
-    paint.setXfermodeMode(SkXfermode::kSrcOver_Mode);
-    canvas->DrawImageInPath(resized_, image_bounds.x(), image_bounds.y(),
-                            path, paint);
-  }
+  void SetImage(const gfx::ImageSkia& img, const gfx::Size& size);
 
  private:
+  // Overridden from views::View.
+  virtual gfx::Size GetPreferredSize() OVERRIDE;
+  virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
+
   gfx::ImageSkia image_;
   gfx::ImageSkia resized_;
   gfx::Size image_size_;
   int corner_radius_;
 
   DISALLOW_COPY_AND_ASSIGN(RoundedImageView);
 };
 
+// The user details shown in public account mode. This is essentially a label
+// but with custom painting code as the text is styled with multiple colors and
+// contains a link.
+class PublicAccountUserDetails : public views::View,
+                                 public views::LinkListener {
+ public:
+  PublicAccountUserDetails(SystemTrayItem* owner, int used_width);
+  virtual ~PublicAccountUserDetails();
+
+ private:
+  // Overridden from views::LinkListener.
+  virtual void LinkClicked(views::Link* source, int event_flags) OVERRIDE;
+
+  // Overridden from views::View.
+  virtual void Layout() OVERRIDE;
+  virtual gfx::Size GetPreferredSize() OVERRIDE { return preferred_size_; };
+  virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
+
+  // Calculate a preferred size that ensures the label text and the following
+  // link do not wrap over more than three lines in total for aesthetic reasons
+  // if possible.
+  void CalculatePreferredSize(SystemTrayItem* owner, int used_width);
+
+  string16 text_;
+  views::Link* learn_more_;
+  gfx::Font font_;
+  gfx::Size preferred_size_;
+  ScopedVector<gfx::RenderText> lines_;
+
+  DISALLOW_COPY_AND_ASSIGN(PublicAccountUserDetails);
+};
+
 class UserView : public views::View,
                  public views::ButtonListener {
  public:
-  explicit UserView(ash::user::LoginStatus login)
-      : login_(login),
-        user_info_(NULL),
-        username_(NULL),
-        email_(NULL),
-        signout_(NULL) {
-    CHECK(login_ != ash::user::LOGGED_IN_NONE);
-
-    bool public_account = login_ == ash::user::LOGGED_IN_PUBLIC;
-    bool guest = login_ == ash::user::LOGGED_IN_GUEST;
-    bool locked = login_ == ash::user::LOGGED_IN_LOCKED;
-
-    set_background(views::Background::CreateSolidBackground(
-        public_account ? kPublicAccountBackgroundColor : kBackgroundColor));
-
-    if (!guest)
-      AddUserInfo();
-
-    // A user should not be able to modify logged in state when screen is
-    // locked.
-    if (!locked)
-      AddButtonContainer();
-  }
-
-  virtual ~UserView() {}
-
-  // Create container for buttons.
-  void AddButtonContainer() {
-    TrayPopupLabelButton* button = new TrayPopupLabelButton(this,
-        ash::user::GetLocalizedSignOutStringForStatus(login_, true));
-    AddChildView(button);
-    signout_ = button;
-  }
+  explicit UserView(SystemTrayItem* owner, ash::user::LoginStatus login);
+  virtual ~UserView();
 
  private:
-  void AddUserInfo() {
-    user_info_ = new views::View;
-    user_info_->SetLayoutManager(new views::BoxLayout(
-        views::BoxLayout::kHorizontal, kTrayPopupPaddingHorizontal,
-        kUserInfoVerticalPadding, kTrayPopupPaddingBetweenItems));
-    AddChildView(user_info_);
-
-    if (login_ == ash::user::LOGGED_IN_KIOSK) {
-      views::Label* label = new views::Label;
-      ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
-      label->SetText(
-          bundle.GetLocalizedString(IDS_ASH_STATUS_TRAY_KIOSK_LABEL));
-      label->set_border(views::Border::CreateEmptyBorder(
-            0, 4, 0, 1));
-      label->SetHorizontalAlignment(gfx::ALIGN_LEFT);
-      user_info_->AddChildView(label);
-      return;
-    }
-
-    RoundedImageView* image = new RoundedImageView(kProfileRoundedCornerRadius);
-    image->SetImage(ash::Shell::GetInstance()->tray_delegate()->GetUserImage(),
-        gfx::Size(kUserIconSize, kUserIconSize));
-    user_info_->AddChildView(image);
-
-    views::View* user = new views::View;
-    user->SetLayoutManager(new views::BoxLayout(
-        views::BoxLayout::kVertical, 0, 5, 0));
-    ash::SystemTrayDelegate* tray =
-        ash::Shell::GetInstance()->tray_delegate();
-    username_ = new views::Label(tray->GetUserDisplayName());
-    username_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
-    user->AddChildView(username_);
-
-    email_ = new views::Label(UTF8ToUTF16(tray->GetUserEmail()));
-    email_->SetFont(username_->font().DeriveFont(-1));
-    email_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
-    email_->SetEnabled(false);
-    user->AddChildView(email_);
-
-    user_info_->AddChildView(user);
-  }
+  // Overridden from views::View.
+  virtual gfx::Size GetPreferredSize() OVERRIDE;
+  virtual void Layout() OVERRIDE;
 
   // Overridden from views::ButtonListener.
   virtual void ButtonPressed(views::Button* sender,
-                             const ui::Event& event) OVERRIDE {
-    CHECK(sender == signout_);
-    ash::SystemTrayDelegate* tray = ash::Shell::GetInstance()->tray_delegate();
-    tray->SignOut();
-  }
-
-  // Overridden from views::View.
-  virtual gfx::Size GetPreferredSize() OVERRIDE {
-    gfx::Size size;
-    if (user_info_)
-      size = user_info_->GetPreferredSize();
-    if (signout_) {
-      gfx::Size signout_size = signout_->GetPreferredSize();
-      // Make sure the user default view item at least as tall as the other
-      // tray popup items.
-      if (size.height() == 0)
-        size.set_height(kTrayPopupItemHeight);
-      size.set_height(std::max(size.height(), signout_size.height()));
-      size.set_width(size.width() + signout_size.width() +
-          kTrayPopupPaddingHorizontal * 2 + kTrayPopupPaddingBetweenItems);
-    }
-    return size;
-  }
-
-  virtual void Layout() OVERRIDE {
-    views::View::Layout();
-    if (bounds().IsEmpty())
-      return;
-
-    if (signout_ && user_info_) {
-      gfx::Rect signout_bounds(bounds());
-      signout_bounds.ClampToCenteredSize(signout_->GetPreferredSize());
-      signout_bounds.set_x(width() - signout_bounds.width() -
-          kTrayPopupPaddingHorizontal);
-      signout_->SetBoundsRect(signout_bounds);
-
-      gfx::Rect usercard_bounds(user_info_->GetPreferredSize());
-      usercard_bounds.set_width(signout_bounds.x());
-      user_info_->SetBoundsRect(usercard_bounds);
-    } else if (signout_) {
-      signout_->SetBoundsRect(gfx::Rect(size()));
-    } else if (user_info_) {
-      user_info_->SetBoundsRect(gfx::Rect(size()));
-    }
-  }
-
-  user::LoginStatus login_;
-
-  views::View* user_info_;
-  views::Label* username_;
-  views::Label* email_;
-
-  views::Button* signout_;
+                             const ui::Event& event) OVERRIDE;
+
+  void AddLogoutButton(ash::user::LoginStatus login);
+  void AddUserCard(SystemTrayItem* owner, ash::user::LoginStatus login);
+
+  views::View* user_card_;
+  views::View* logout_button_;
 
   DISALLOW_COPY_AND_ASSIGN(UserView);
 };
 
+RoundedImageView::RoundedImageView(int corner_radius)
+    : corner_radius_(corner_radius) {}
+
+RoundedImageView::~RoundedImageView() {}
+
+void RoundedImageView::SetImage(const gfx::ImageSkia& img,
+                                const gfx::Size& size) {
+  image_ = img;
+  image_size_ = size;
+
+  // Try to get the best image quality for the avatar.
+  resized_ = gfx::ImageSkiaOperations::CreateResizedImage(image_,
+      skia::ImageOperations::RESIZE_BEST, size);
+  if (GetWidget() && visible()) {
+    PreferredSizeChanged();
+    SchedulePaint();
+  }
+}
+
+gfx::Size RoundedImageView::GetPreferredSize() {
+  return gfx::Size(image_size_.width() + GetInsets().width(),
+                   image_size_.height() + GetInsets().height());
+}
+
+void RoundedImageView::OnPaint(gfx::Canvas* canvas) {
+  View::OnPaint(canvas);
+  gfx::Rect image_bounds(size());
+  image_bounds.ClampToCenteredSize(GetPreferredSize());
+  image_bounds.Inset(GetInsets());
+  const SkScalar kRadius = SkIntToScalar(corner_radius_);
+  SkPath path;
+  path.addRoundRect(gfx::RectToSkRect(image_bounds), kRadius, kRadius);
+  SkPaint paint;
+  paint.setAntiAlias(true);
+  paint.setXfermodeMode(SkXfermode::kSrcOver_Mode);
+  canvas->DrawImageInPath(resized_, image_bounds.x(), image_bounds.y(),
+                          path, paint);
+}
+
+PublicAccountUserDetails::PublicAccountUserDetails(SystemTrayItem* owner,
+                                                   int used_width)
+      : learn_more_(NULL),
+        font_(ResourceBundle::GetSharedInstance().GetFont(
+            ResourceBundle::BaseFont)) {
+  const int inner_padding =
+      kTrayPopupPaddingHorizontal - kTrayPopupPaddingBetweenItems;
+  const bool rtl = base::i18n::IsRTL();
+  set_border(views::Border::CreateEmptyBorder(
+      kUserDetailsVerticalPadding, rtl ? 0 : inner_padding,
+      kUserDetailsVerticalPadding, rtl ? inner_padding : 0));
+
+  ash::SystemTrayDelegate* delegate =
+      ash::Shell::GetInstance()->tray_delegate();
+  // Retrieve the user's display name and wrap it with markers.
+  string16 display_name = delegate->GetUserDisplayName();
+  ReplaceChars(display_name, kDisplayNameMark, string16(), &display_name);

[stevenjb, 2012/11/19 18:36:53]

Wouldn't RemoveChars work here and be mroe clear? Same below.

[bartfab (slow), 2012/11/19 18:44:09]

Done.

+  display_name.insert(0U, 1U, kDisplayNameMark[0]);
+  display_name.push_back(kDisplayNameMark[0]);

[stevenjb, 2012/11/19 18:36:53]

I think the above two lines would be easier to read as:
display_name = kDisplayNameMark + display_name + kDisplayNameMark;

[bartfab (slow), 2012/11/19 18:44:09]

Done.

+  // Retrieve the domain managing the device and wrap it with markers.
+  string16 domain = UTF8ToUTF16(delegate->GetEnterpriseDomain());
+  ReplaceChars(domain, kDisplayNameMark, string16(), &domain);
+  base::i18n::WrapStringWithLTRFormatting(&domain);
+  // Retrieve the label text, inserting the display name and domain.
+  text_ = l10n_util::GetStringFUTF16(IDS_ASH_STATUS_TRAY_PUBLIC_LABEL,
+                                     display_name, domain);
+
+  learn_more_ = new views::Link(l10n_util::GetStringUTF16(IDS_ASH_LEARN_MORE));
+  learn_more_->SetUnderline(false);
+  learn_more_->set_listener(this);
+  AddChildView(learn_more_);
+
+  CalculatePreferredSize(owner, used_width);
+}
+
+PublicAccountUserDetails::~PublicAccountUserDetails() {}
+
+void PublicAccountUserDetails::LinkClicked(views::Link* source,
+                                           int event_flags) {
+  DCHECK_EQ(source, learn_more_);
+  ash::Shell::GetInstance()->tray_delegate()->ShowPublicAccountInfo();
+}
+
+void PublicAccountUserDetails::Layout() {
+  lines_.clear();
+  const gfx::Rect contents_area = GetContentsBounds();
+  if (contents_area.IsEmpty())
+     return;
+
+  // Word-wrap the label text.
+  std::vector<string16> lines;
+  ui::ElideRectangleText(text_, font_, contents_area.width(),
+                         contents_area.height(), ui::ELIDE_LONG_WORDS, &lines);
+  // Loop through the lines, creating a renderer for each.
+  gfx::Point position = contents_area.origin();
+  ui::Range display_name(ui::Range::InvalidRange());
+  for (std::vector<string16>::const_iterator it = lines.begin();
+       it != lines.end(); ++it) {
+    gfx::RenderText* line = gfx::RenderText::CreateInstance();
+    line->SetDirectionalityMode(gfx::DIRECTIONALITY_FROM_UI);
+    line->SetText(*it);
+    const gfx::Size size(contents_area.width(), line->GetStringSize().height());
+    line->SetDisplayRect(gfx::Rect(position, size));
+    position.set_y(position.y() + size.height());
+
+    // Set the default text color for the line.
+    gfx::StyleRange default_style(line->default_style());
+    default_style.foreground = kPublicAccountUserCardTextColor;
+    line->set_default_style(default_style);
+    line->ApplyDefaultStyle();
+
+    // If a range of the line contains the user's display name, apply a custom
+    // text color to it.
+    if (display_name.is_empty())
+      display_name.set_start(it->find(kDisplayNameMark));
+    if (!display_name.is_empty()) {
+      display_name.set_end(
+          it->find(kDisplayNameMark, display_name.start() + 1));
+      gfx::StyleRange display_name_style(line->default_style());
+      display_name_style.foreground = kPublicAccountUserCardNameColor;
+      ui::Range line_range(0, it->size());
+      display_name_style.range = display_name.Intersect(line_range);
+      line->ApplyStyleRange(display_name_style);
+      // Update the range for the next line.
+      if (display_name.end() >= line_range.end())
+        display_name.set_start(0);
+      else
+        display_name = ui::Range::InvalidRange();
+    }
+
+    lines_.push_back(line);
+  }
+
+  // Position link after the label text, separated by a space. If it does not
+  // fit onto the last line of the text, wrap the link onto its own line.
+  const gfx::Size last_line_size = lines_.back()->GetStringSize();
+  const int space_width = font_.GetStringWidth(ASCIIToUTF16(" "));
+  const gfx::Size link_size = learn_more_->GetPreferredSize();
+  if (contents_area.width() - last_line_size.width() >=
+      space_width + link_size.width()) {
+    position.set_x(position.x() + last_line_size.width() + space_width);
+    position.set_y(position.y() - last_line_size.height());
+  }
+  position.set_y(position.y() - learn_more_->GetInsets().top());
+  gfx::Rect learn_more_bounds(position, link_size);
+  learn_more_bounds.Intersect(contents_area);
+  if (base::i18n::IsRTL()) {
+    const gfx::Insets insets = GetInsets();
+    learn_more_bounds.Offset(insets.right() - insets.left(), 0);
+  }
+  learn_more_->SetBoundsRect(learn_more_bounds);
+}
+
+void PublicAccountUserDetails::OnPaint(gfx::Canvas* canvas) {
+  for (ScopedVector<gfx::RenderText>::const_iterator it = lines_.begin();
+       it != lines_.end(); ++it) {
+    (*it)->Draw(canvas);
+  }
+  views::View::OnPaint(canvas);
+}
+
+void PublicAccountUserDetails::CalculatePreferredSize(SystemTrayItem* owner,
+                                                      int used_width) {
+
+  const gfx::Size link_size = learn_more_->GetPreferredSize();
+  const int space_width = font_.GetStringWidth(ASCIIToUTF16(" "));
+  const gfx::Insets insets = GetInsets();
+  views::TrayBubbleView* bubble_view =
+      owner->system_tray()->GetSystemBubble()->bubble_view();
+  int min_width = std::max(
+      link_size.width(),
+      bubble_view->GetPreferredSize().width() - (used_width + insets.width()));
+  int max_width = std::min(
+      font_.GetStringWidth(text_) + space_width + link_size.width(),
+      bubble_view->GetMaximumSize().width() - (used_width + insets.width()));
+  // Do a binary search for the minimum width that ensures no more than three
+  // lines are needed. The lower bound is the minimum of the current bubble
+  // width and the width of the link (as no wrapping is permitted inside the
+  // link). The upper bound is the maximum of the largest allowed bubble width
+  // and the sum of the label text and link widths when put on a single line.
+  std::vector<string16> lines;
+  while (min_width < max_width) {
+    lines.clear();
+    const int width = (min_width + max_width) / 2;
+    const bool too_narrow = ui::ElideRectangleText(
+        text_, font_, width, INT_MAX, ui::TRUNCATE_LONG_WORDS, &lines);
+    int line_count = lines.size();
+    if (!too_narrow && line_count == 3 &&
+            width - font_.GetStringWidth(lines.back()) <=
+            space_width + link_size.width()) {
+      ++line_count;
+    }
+    if (too_narrow || line_count > 3)
+      min_width = width + 1;
+    else
+      max_width = width;
+  }
+
+  // Calculate the corresponding height and set the preferred size.
+  lines.clear();
+  ui::ElideRectangleText(
+      text_, font_, min_width, INT_MAX, ui::TRUNCATE_LONG_WORDS, &lines);
+  int line_count = lines.size();
+  if (min_width - font_.GetStringWidth(lines.back()) <=
+      space_width + link_size.width()) {
+    ++line_count;
+  }
+  const int line_height = font_.GetHeight();
+  const int link_extra_height = std::max(
+      link_size.height() - learn_more_->GetInsets().top() - line_height, 0);
+  preferred_size_ = gfx::Size(
+      min_width + insets.width(),
+      line_count * line_height + link_extra_height + insets.height());
+
+  bubble_view->SetWidth(preferred_size_.width() + used_width);
+}
+
+UserView::UserView(SystemTrayItem* owner, ash::user::LoginStatus login)
+    : user_card_(NULL),
+      logout_button_(NULL) {
+  CHECK(login != ash::user::LOGGED_IN_NONE);
+  set_background(views::Background::CreateSolidBackground(
+      login == ash::user::LOGGED_IN_PUBLIC ? kPublicAccountBackgroundColor :
+                                             kBackgroundColor));
+  SetLayoutManager(new views::BoxLayout(views::BoxLayout::kHorizontal, 0, 0,
+                                        kTrayPopupPaddingBetweenItems));
+  AddLogoutButton(login);
+  AddUserCard(owner, login);
+}
+
+UserView::~UserView() {}
+
+gfx::Size UserView::GetPreferredSize() {
+  gfx::Size size = views::View::GetPreferredSize();
+  if (!user_card_) {
+    // Make sure the default user default view item is at least as tall as the
+    // other items.
+    size.set_height(std::max(size.height(),
+                             kTrayPopupItemHeight + GetInsets().height()));
+  }
+  return size;
+}
+
+void UserView::Layout() {
+  gfx::Rect contents_area(GetContentsBounds());
+  if (user_card_ && logout_button_) {
+    // Give the logout button the space it requests.
+    gfx::Rect logout_area = contents_area;
+    logout_area.ClampToCenteredSize(logout_button_->GetPreferredSize());
+    logout_area.set_x(contents_area.right() - logout_area.width());
+    logout_button_->SetBoundsRect(logout_area);
+
+    // Give the remaining space to the user card.
+    gfx::Rect user_card_area = contents_area;
+    user_card_area.set_width(contents_area.width() -
+        (logout_area.width() + kTrayPopupPaddingBetweenItems));
+    user_card_->SetBoundsRect(user_card_area);
+  } else if (user_card_) {
+    user_card_->SetBoundsRect(contents_area);
+  } else if (logout_button_) {
+    logout_button_->SetBoundsRect(contents_area);
+  }
+}
+
+void UserView::ButtonPressed(views::Button* sender, const ui::Event& event) {
+  DCHECK(sender == logout_button_);
+  ash::Shell::GetInstance()->tray_delegate()->SignOut();
+}
+
+void UserView::AddLogoutButton(ash::user::LoginStatus login) {
+  // The logout button must be added before the user card.
+  DCHECK(!user_card_);
+
+  // A user should not be able to modify logged-in state when screen is
+  // locked.
+  if (login == ash::user::LOGGED_IN_LOCKED)
+    return;
+
+  TrayPopupLabelButton* logout_button = new TrayPopupLabelButton(
+      this, ash::user::GetLocalizedSignOutStringForStatus(login, true));
+  // In public account mode, the vertical separator painted by the logout
+  // button's border has a custom color.
+  if (login == ash::user::LOGGED_IN_PUBLIC) {
+    static_cast<TrayPopupLabelButtonBorder*>(logout_button->border())->
+        SetImages(views::CustomButton::STATE_NORMAL,
+        views::BorderImages(kPublicAccountLogoutButtonBorderImagesNormal));
+  }
+  logout_button_ = logout_button;
+  AddChildView(logout_button);
+}
+
+void UserView::AddUserCard(SystemTrayItem* owner,
+                           ash::user::LoginStatus login) {
+  if (login == ash::user::LOGGED_IN_GUEST)
+    return;
+
+  set_border(views::Border::CreateEmptyBorder(0, kTrayPopupPaddingHorizontal,
+                                              0, kTrayPopupPaddingHorizontal));
+
+  user_card_ = new views::View();
+  user_card_->SetLayoutManager(new views::BoxLayout(
+      views::BoxLayout::kHorizontal, 0, kUserCardVerticalPadding,
+      kTrayPopupPaddingBetweenItems));
+  AddChildViewAt(user_card_, 0);
+
+  if (login == ash::user::LOGGED_IN_KIOSK) {
+    views::Label* details = new views::Label;
+    ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
+    details->SetText(
+        bundle.GetLocalizedString(IDS_ASH_STATUS_TRAY_KIOSK_LABEL));
+    details->set_border(views::Border::CreateEmptyBorder(0, 4, 0, 1));
+    details->SetHorizontalAlignment(gfx::ALIGN_LEFT);
+    user_card_->AddChildView(details);
+    return;
+  }
+
+  RoundedImageView* avatar = new RoundedImageView(kProfileRoundedCornerRadius);
+  avatar->SetImage(ash::Shell::GetInstance()->tray_delegate()->GetUserImage(),
+                   gfx::Size(kUserIconSize, kUserIconSize));
+  user_card_->AddChildView(avatar);
+
+  if (login == ash::user::LOGGED_IN_PUBLIC) {
+    user_card_->AddChildView(new PublicAccountUserDetails(
+        owner, GetPreferredSize().width() + kTrayPopupPaddingBetweenItems));
+    return;
+  }
+
+  ash::SystemTrayDelegate* delegate =
+      ash::Shell::GetInstance()->tray_delegate();
+  views::View* details = new views::View;
+  details->SetLayoutManager(new views::BoxLayout(
+      views::BoxLayout::kVertical, 0, kUserDetailsVerticalPadding, 0));
+  views::Label* username = new views::Label(delegate->GetUserDisplayName());
+  username->SetHorizontalAlignment(gfx::ALIGN_LEFT);
+  details->AddChildView(username);
+
+  views::Label* email = new views::Label(UTF8ToUTF16(delegate->GetUserEmail()));
+  email->SetFont(username->font().DeriveFont(-1));
+  email->SetHorizontalAlignment(gfx::ALIGN_LEFT);
+  email->SetEnabled(false);
+  details->AddChildView(email);
+  user_card_->AddChildView(details);
+}
+
 }  // namespace tray
 
 TrayUser::TrayUser(SystemTray* system_tray)
     : SystemTrayItem(system_tray),
       user_(NULL),
       avatar_(NULL),
       label_(NULL) {
 }
 
 TrayUser::~TrayUser() {
@@ skipping 13 matching lines @@
   UpdateAfterLoginStatusChange(status);
   return avatar_ ? static_cast<views::View*>(avatar_)
                  : static_cast<views::View*>(label_);
 }
 
 views::View* TrayUser::CreateDefaultView(user::LoginStatus status) {
   if (status == user::LOGGED_IN_NONE)
     return NULL;
 
   CHECK(user_ == NULL);
-  user_ = new tray::UserView(status);
+  user_ = new tray::UserView(this, status);
   return user_;
 }
 
 views::View* TrayUser::CreateDetailedView(user::LoginStatus status) {
   return NULL;
 }
 
 void TrayUser::DestroyTrayView() {
   avatar_ = NULL;
   label_ = NULL;
@@ skipping 57 matching lines @@
   // Check for null to avoid crbug.com/150944.
   if (avatar_) {
     avatar_->SetImage(
         ash::Shell::GetInstance()->tray_delegate()->GetUserImage(),
         gfx::Size(kUserIconSize, kUserIconSize));
   }
 }
 
 }  // namespace internal
 }  // namespace ash