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// Copyright 2014 The Chromium Authors
// 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 "ash/constants/ash_pref_names.h"
#include "ash/constants/tray_background_view_catalog.h"
#include "ash/public/cpp/ash_typography.h"
#include "ash/resources/vector_icons/vector_icons.h"
#include "ash/session/session_controller_impl.h"
#include "ash/shelf/shelf.h"
#include "ash/shell.h"
#include "ash/style/ash_color_provider.h"
#include "ash/system/session/logout_confirmation_controller.h"
#include "ash/system/status_area_widget.h"
#include "ash/system/tray/tray_constants.h"
#include "ash/system/tray/tray_container.h"
#include "ash/system/user/login_status.h"
#include "base/functional/bind.h"
#include "base/metrics/user_metrics.h"
#include "components/prefs/pref_change_registrar.h"
#include "components/prefs/pref_registry_simple.h"
#include "components/prefs/pref_service.h"
#include "ui/accessibility/ax_node_data.h"
#include "ui/base/metadata/metadata_impl_macros.h"
#include "ui/chromeos/styles/cros_tokens_color_mappings.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/paint_vector_icon.h"
#include "ui/views/accessibility/view_accessibility.h"
#include "ui/views/controls/button/md_text_button.h"
#include "ui/views/layout/fill_layout.h"
namespace ash {
LogoutButtonTray::LogoutButtonTray(Shelf* shelf)
: TrayBackgroundView(shelf, TrayBackgroundViewCatalogName::kLogoutButton) {
DCHECK(shelf);
Shell::Get()->session_controller()->AddObserver(this);
button_ =
tray_container()->AddChildView(std::make_unique<views::MdTextButton>(
base::BindRepeating(&LogoutButtonTray::ButtonPressed,
base::Unretained(this)),
std::u16string(), CONTEXT_LAUNCHER_BUTTON));
button_->SetStyle(ui::ButtonStyle::kProminent);
set_use_bounce_in_animation(false);
SetFocusBehavior(FocusBehavior::NEVER);
SubscribeCallbacksForAccessibility();
}
LogoutButtonTray::~LogoutButtonTray() {
Shell::Get()->session_controller()->RemoveObserver(this);
}
// static
void LogoutButtonTray::RegisterProfilePrefs(PrefRegistrySimple* registry) {
registry->RegisterBooleanPref(prefs::kShowLogoutButtonInTray, false);
registry->RegisterIntegerPref(prefs::kLogoutDialogDurationMs, 20000);
}
void LogoutButtonTray::UpdateLayout() {
// We must first update the button so that its container can lay it out
// correctly.
UpdateButtonTextAndImage();
tray_container()->UpdateLayout();
}
void LogoutButtonTray::UpdateBackground() {
// The logout button does not have a background.
}
void LogoutButtonTray::OnActiveUserPrefServiceChanged(PrefService* prefs) {
pref_change_registrar_.reset();
pref_change_registrar_ = std::make_unique<PrefChangeRegistrar>();
pref_change_registrar_->Init(prefs);
pref_change_registrar_->Add(
prefs::kShowLogoutButtonInTray,
base::BindRepeating(&LogoutButtonTray::UpdateShowLogoutButtonInTray,
base::Unretained(this)));
pref_change_registrar_->Add(
prefs::kLogoutDialogDurationMs,
base::BindRepeating(&LogoutButtonTray::UpdateLogoutDialogDuration,
base::Unretained(this)));
// Read the initial values.
UpdateShowLogoutButtonInTray();
UpdateLogoutDialogDuration();
}
std::u16string LogoutButtonTray::GetLoginStatusString() {
LoginStatus login_status = shelf()->GetStatusAreaWidget()->login_status();
return user::GetLocalizedSignOutStringForStatus(login_status, false);
}
void LogoutButtonTray::OnThemeChanged() {
TrayBackgroundView::OnThemeChanged();
const auto* color_provider = GetColorProvider();
button_->SetBgColorIdOverride(cros_tokens::kColorAlert);
button_->SetEnabledTextColors(
color_provider->GetColor(cros_tokens::kColorPrimaryInverted));
}
void LogoutButtonTray::UpdateShowLogoutButtonInTray() {
show_logout_button_in_tray_ = pref_change_registrar_->prefs()->GetBoolean(
prefs::kShowLogoutButtonInTray);
UpdateVisibility();
}
void LogoutButtonTray::UpdateLogoutDialogDuration() {
const int duration_ms = pref_change_registrar_->prefs()->GetInteger(
prefs::kLogoutDialogDurationMs);
dialog_duration_ = base::Milliseconds(duration_ms);
}
void LogoutButtonTray::UpdateAfterLoginStatusChange() {
UpdateButtonTextAndImage();
}
void LogoutButtonTray::ClickedOutsideBubble(const ui::LocatedEvent& event) {}
void LogoutButtonTray::HideBubbleWithView(const TrayBubbleView* bubble_view) {}
void LogoutButtonTray::HideBubble(const TrayBubbleView* bubble_view) {}
void LogoutButtonTray::HandleLocaleChange() {
UpdateButtonTextAndImage();
}
void LogoutButtonTray::UpdateVisibility() {
LoginStatus login_status = shelf()->GetStatusAreaWidget()->login_status();
SetVisiblePreferred(show_logout_button_in_tray_ &&
login_status != LoginStatus::NOT_LOGGED_IN &&
login_status != LoginStatus::LOCKED);
}
void LogoutButtonTray::UpdateButtonTextAndImage() {
if (shelf()->IsHorizontalAlignment()) {
button_->SetText(GetLoginStatusString());
button_->SetImageModel(views::Button::STATE_NORMAL, ui::ImageModel());
button_->SetMinSize(gfx::Size(0, kTrayItemSize));
} else {
button_->SetText(std::u16string());
button_->GetViewAccessibility().SetName(GetLoginStatusString());
button_->SetImageModel(
views::Button::STATE_NORMAL,
ui::ImageModel::FromVectorIcon(
kShelfLogoutIcon,
AshColorProvider::Get()->GetContentLayerColor(
AshColorProvider::ContentLayerType::kIconColorPrimary)));
button_->SetMinSize(gfx::Size(kTrayItemSize, kTrayItemSize));
}
UpdateVisibility();
}
void LogoutButtonTray::OnButtonTextChangedCallback(
ax::mojom::StringAttribute attribute,
const std::optional<std::string>& name) {
if (name.has_value()) {
GetViewAccessibility().SetName(name.value());
}
}
void LogoutButtonTray::SubscribeCallbacksForAccessibility() {
button_text_changed_subscription_ =
button_->GetViewAccessibility().AddStringAttributeChangedCallback(
ax::mojom::StringAttribute::kName,
base::BindRepeating(&LogoutButtonTray::OnButtonTextChangedCallback,
base::Unretained(this)));
}
void LogoutButtonTray::ButtonPressed() {
if (dialog_duration_ <= base::TimeDelta()) {
if (Shell::Get()->session_controller()->IsDemoSession())
base::RecordAction(base::UserMetricsAction("DemoMode.ExitFromShelf"));
// Sign out immediately if |dialog_duration_| is non-positive.
Shell::Get()->session_controller()->RequestSignOut();
} else if (Shell::Get()->logout_confirmation_controller()) {
Shell::Get()->logout_confirmation_controller()->ConfirmLogout(
base::TimeTicks::Now() + dialog_duration_,
LogoutConfirmationController::Source::kShelfExitButton);
}
}
BEGIN_METADATA(LogoutButtonTray)
END_METADATA
} // namespace ash
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