text: // Copyright 2016 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/ash/arc/notification/arc_boot_error_notification.h"
  
  #include <memory>
  #include <utility>
  
  #include "ash/public/cpp/notification_utils.h"
  #include "base/bind.h"
  #include "base/memory/scoped_refptr.h"
  #include "base/strings/utf_string_conversions.h"
  #include "chrome/app/vector_icons/vector_icons.h"
  #include "chrome/browser/ash/arc/session/arc_session_manager.h"
  #include "chrome/browser/ash/policy/core/browser_policy_connector_ash.h"
  #include "chrome/browser/browser_process.h"
  #include "chrome/browser/browser_process_platform_part.h"
  #include "chrome/browser/notifications/notification_display_service.h"
  #include "chrome/browser/notifications/notification_display_service_factory.h"
  #include "chrome/browser/profiles/profile.h"
  #include "chrome/browser/ui/settings_window_manager_chromeos.h"
  #include "chrome/browser/ui/webui/settings/chromeos/constants/routes.mojom.h"
  #include "chrome/common/webui_url_constants.h"
  #include "chrome/grit/generated_resources.h"
  #include "components/arc/arc_browser_context_keyed_service_factory_base.h"
  #include "components/user_manager/user_manager.h"
  #include "content/public/browser/browser_thread.h"
  #include "ui/base/l10n/l10n_util.h"
  #include "ui/base/resource/resource_bundle.h"
  #include "ui/chromeos/resources/grit/ui_chromeos_resources.h"
  #include "ui/message_center/public/cpp/notification.h"
  #include "ui/message_center/public/cpp/notification_types.h"
  #include "ui/message_center/public/cpp/notifier_id.h"
  
  namespace arc {
  
  namespace {
  
  const char kLowDiskSpaceId[] = "arc_low_disk";
  const char kNotifierId[] = "arc_boot_error";
  
  void ShowLowDiskSpaceErrorNotification(content::BrowserContext* context) {
    // We suppress the low-disk notification when there are multiple users on an
    // enterprise managed device. crbug.com/656788.
    if (g_browser_process->platform_part()
            ->browser_policy_connector_ash()
            ->IsDeviceEnterpriseManaged() &&
        user_manager::UserManager::Get()->GetUsers().size() > 1) {
      LOG(WARNING) << "ARC booting is aborted due to low disk space, but the "
                   << "notification was suppressed on a managed device.";
      return;
    }
    message_center::ButtonInfo storage_settings(
        l10n_util::GetStringUTF16(IDS_LOW_DISK_NOTIFICATION_BUTTON));
    message_center::RichNotificationData optional_fields;
    optional_fields.buttons.push_back(storage_settings);
  
    message_center::NotifierId notifier_id(
        message_center::NotifierType::SYSTEM_COMPONENT, kNotifierId);
    const AccountId& account_id =
        user_manager::UserManager::Get()->GetPrimaryUser()->GetAccountId();
    notifier_id.profile_id = account_id.GetUserEmail();
  
    Profile* profile = Profile::FromBrowserContext(context);
    std::unique_ptr<message_center::Notification> notification =
        ash::CreateSystemNotification(
            message_center::NOTIFICATION_TYPE_SIMPLE, kLowDiskSpaceId,
            l10n_util::GetStringUTF16(
                IDS_ARC_CRITICALLY_LOW_DISK_NOTIFICATION_TITLE),
            l10n_util::GetStringUTF16(
                IDS_ARC_CRITICALLY_LOW_DISK_NOTIFICATION_MESSAGE),
            l10n_util::GetStringUTF16(IDS_ARC_NOTIFICATION_DISPLAY_SOURCE),
            GURL(), notifier_id, optional_fields,
            base::MakeRefCounted<message_center::HandleNotificationClickDelegate>(
                base::BindRepeating(
                    [](Profile* profile, absl::optional<int> button_index) {
                      if (button_index) {
                        DCHECK_EQ(0, *button_index);
                        chrome::SettingsWindowManager::GetInstance()
                            ->ShowOSSettings(
                                profile,
                                chromeos::settings::mojom::kStorageSubpagePath);
                      }
                    },
                    profile)),
            kNotificationStorageFullIcon,
            message_center::SystemNotificationWarningLevel::CRITICAL_WARNING);
    NotificationDisplayService::GetForProfile(profile)->Display(
        NotificationHandler::Type::TRANSIENT, *notification,
        /*metadata=*/nullptr);
  }
  
  // Singleton factory for ArcBootErrorNotificationFactory.
  class ArcBootErrorNotificationFactory
      : public internal::ArcBrowserContextKeyedServiceFactoryBase<
            ArcBootErrorNotification,
            ArcBootErrorNotificationFactory> {
   public:
    // Factory name used by ArcBrowserContextKeyedServiceFactoryBase.
    static constexpr const char* kName = "ArcBootErrorNotificationFactory";
  
    static ArcBootErrorNotificationFactory* GetInstance() {
      return base::Singleton<ArcBootErrorNotificationFactory>::get();
    }
  
   private:
    friend base::DefaultSingletonTraits<ArcBootErrorNotificationFactory>;
    ArcBootErrorNotificationFactory() {
      DependsOn(NotificationDisplayServiceFactory::GetInstance());
    }
    ~ArcBootErrorNotificationFactory() override = default;
  };
  
  }  // namespace
  
  // static
  ArcBootErrorNotification* ArcBootErrorNotification::GetForBrowserContext(
      content::BrowserContext* context) {
    return ArcBootErrorNotificationFactory::GetForBrowserContext(context);
  }
  
  ArcBootErrorNotification::ArcBootErrorNotification(
      content::BrowserContext* context,
      ArcBridgeService* bridge_service)
      : context_(context) {
    ArcSessionManager::Get()->AddObserver(this);
  }
  
  ArcBootErrorNotification::~ArcBootErrorNotification() {
    ArcSessionManager::Get()->RemoveObserver(this);
  }
  
  void ArcBootErrorNotification::OnArcSessionStopped(ArcStopReason reason) {
    if (reason == ArcStopReason::LOW_DISK_SPACE)
      ShowLowDiskSpaceErrorNotification(context_);
  }
  
  }  // namespace arc
  