Make LogoutButtonTray a regular View

ash/system/session/logout_button_tray.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 "ash/system/session/logout_button_tray.h"
 
-#include <memory>
-#include <utility>
-
-#include "ash/public/cpp/shelf_types.h"
-#include "ash/resources/grit/ash_resources.h"
 #include "ash/resources/vector_icons/vector_icons.h"
-#include "ash/shelf/wm_shelf_util.h"
+#include "ash/shelf/wm_shelf.h"
 #include "ash/shell.h"
 #include "ash/system/session/logout_confirmation_controller.h"
+#include "ash/system/status_area_widget.h"
 #include "ash/system/tray/system_tray_controller.h"
 #include "ash/system/tray/system_tray_notifier.h"
 #include "ash/system/tray/tray_constants.h"
-#include "ash/system/tray/tray_utils.h"
+#include "ash/system/tray/tray_container.h"
 #include "ash/system/user/login_status.h"
-#include "base/logging.h"
-#include "third_party/skia/include/core/SkColor.h"
-#include "ui/events/event.h"
+#include "ui/accessibility/ax_node_data.h"
 #include "ui/gfx/color_palette.h"
-#include "ui/gfx/geometry/insets.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/paint_vector_icon.h"
-#include "ui/views/bubble/tray_bubble_view.h"
-#include "ui/views/controls/button/label_button.h"
-#include "ui/views/controls/button/label_button_border.h"
 #include "ui/views/controls/button/md_text_button.h"
-#include "ui/views/painter.h"
+#include "ui/views/layout/fill_layout.h"
 
 namespace ash {
 
 LogoutButtonTray::LogoutButtonTray(WmShelf* wm_shelf)
-    : TrayBackgroundView(wm_shelf, false),
-      button_(nullptr),
-      login_status_(LoginStatus::NOT_LOGGED_IN),
+    : wm_shelf_(wm_shelf),
+      container_(new TrayContainer(wm_shelf)),
+      button_(views::MdTextButton::Create(this, base::string16())),
       show_logout_button_in_tray_(false) {
-  views::MdTextButton* button =
-      views::MdTextButton::Create(this, base::string16());
-  button->SetProminent(true);
-  button->SetBgColorOverride(gfx::kGoogleRed700);
-  button->AdjustFontSize(kTrayTextFontSizeIncrease);
-  button_ = button;
+  SetLayoutManager(new views::FillLayout);
+  AddChildView(container_);
 
-  // Since LogoutButtonTray has a red background and it is distinguished
-  // by itself, no separator is needed on its right side.
-  set_separator_visibility(false);
-  tray_container()->AddChildView(button_);
+  button_->SetProminent(true);
+  button_->SetBgColorOverride(gfx::kGoogleRed700);
+  button_->AdjustFontSize(kTrayTextFontSizeIncrease);
+
+  container_->AddChildView(button_);
   Shell::Get()->system_tray_notifier()->AddLogoutButtonObserver(this);
+  SetVisible(false);
 }
 
 LogoutButtonTray::~LogoutButtonTray() {
   Shell::Get()->system_tray_notifier()->RemoveLogoutButtonObserver(this);
 }
 
-void LogoutButtonTray::SetShelfAlignment(ShelfAlignment alignment) {
-  // We must first update the button so that
-  // TrayBackgroundView::SetShelfAlignment() can lay it out correctly.
-  UpdateButtonTextAndImage(login_status_, alignment);
-  TrayBackgroundView::SetShelfAlignment(alignment);
+void LogoutButtonTray::UpdateAfterShelfAlignmentChange() {
+  // We must first update the button so that |container_| can lay it out
+  // correctly.
+  UpdateButtonTextAndImage();
+  container_->UpdateAfterShelfAlignmentChange();
 }
 
-base::string16 LogoutButtonTray::GetAccessibleNameForTray() {
-  return button_->GetText();
-}
-
-void LogoutButtonTray::HideBubbleWithView(
-    const views::TrayBubbleView* bubble_view) {}
-
-void LogoutButtonTray::ClickedOutsideBubble() {}
-
 void LogoutButtonTray::ButtonPressed(views::Button* sender,
                                      const ui::Event& event) {
-  if (sender != button_) {
-    TrayBackgroundView::ButtonPressed(sender, event);
-    return;
-  }
+  DCHECK_EQ(button_, sender);
 
   if (dialog_duration_ <= base::TimeDelta()) {
     // Sign out immediately if |dialog_duration_| is non-positive.
     Shell::Get()->system_tray_controller()->SignOut();
   } else if (Shell::Get()->logout_confirmation_controller()) {
     Shell::Get()->logout_confirmation_controller()->ConfirmLogout(
         base::TimeTicks::Now() + dialog_duration_);
   }
 }
 
+void LogoutButtonTray::GetAccessibleNodeData(ui::AXNodeData* node_data) {
+  View::GetAccessibleNodeData(node_data);
+  node_data->SetName(button_->GetText());
+}
+
 void LogoutButtonTray::OnShowLogoutButtonInTrayChanged(bool show) {
   show_logout_button_in_tray_ = show;
   UpdateVisibility();
 }
 
 void LogoutButtonTray::OnLogoutDialogDurationChanged(base::TimeDelta duration) {
   dialog_duration_ = duration;
 }
 
-void LogoutButtonTray::UpdateAfterLoginStatusChange(LoginStatus login_status) {
-  UpdateButtonTextAndImage(login_status, shelf_alignment());
+void LogoutButtonTray::UpdateAfterLoginStatusChange() {
+  UpdateButtonTextAndImage();
 }
 
 void LogoutButtonTray::UpdateVisibility() {
+  LoginStatus login_status = wm_shelf_->GetStatusAreaWidget()->login_status();
   SetVisible(show_logout_button_in_tray_ &&
-             login_status_ != LoginStatus::NOT_LOGGED_IN &&
-             login_status_ != LoginStatus::LOCKED);
+             login_status != LoginStatus::NOT_LOGGED_IN &&
+             login_status != LoginStatus::LOCKED);
 }
 
-void LogoutButtonTray::UpdateButtonTextAndImage(LoginStatus login_status,
-                                                ShelfAlignment alignment) {
-  login_status_ = login_status;
+void LogoutButtonTray::UpdateButtonTextAndImage() {
+  LoginStatus login_status = wm_shelf_->GetStatusAreaWidget()->login_status();
   const base::string16 title =
       user::GetLocalizedSignOutStringForStatus(login_status, false);
-  if (IsHorizontalAlignment(alignment)) {
+  if (wm_shelf_->IsHorizontalAlignment()) {
     button_->SetText(title);
-    button_->SetImage(views::LabelButton::STATE_NORMAL, gfx::ImageSkia());
+    button_->SetImage(views::Button::STATE_NORMAL, gfx::ImageSkia());
     button_->SetMinSize(gfx::Size(0, kTrayItemSize));
   } else {
     button_->SetText(base::string16());
     button_->SetAccessibleName(title);
-    button_->SetImage(views::LabelButton::STATE_NORMAL,
+    button_->SetImage(views::Button::STATE_NORMAL,
                       gfx::CreateVectorIcon(kShelfLogoutIcon, kTrayIconColor));
     button_->SetMinSize(gfx::Size(kTrayItemSize, kTrayItemSize));
   }
   UpdateVisibility();
 }
 
 }  // namespace ash