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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_MULTI_DEVICE_SETUP_MULTI_DEVICE_NOTIFICATION_PRESENTER_H_
#define ASH_MULTI_DEVICE_SETUP_MULTI_DEVICE_NOTIFICATION_PRESENTER_H_
#include <memory>
#include <string>
#include "ash/ash_export.h"
#include "ash/public/cpp/session/session_observer.h"
#include "base/auto_reset.h"
#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "chromeos/ash/services/multidevice_setup/public/mojom/multidevice_setup.mojom.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "ui/message_center/message_center_observer.h"
namespace message_center {
class MessageCenter;
class Notification;
class RichNotificationData;
} // namespace message_center
namespace ash {
// Presents notifications necessary for MultiDevice setup flow. It observes the
// MultiDeviceSetup mojo service to show a notification when
// (1) a potential host is found for someone who has not gone through the setup
// flow before,
// (2) the host has switched for someone who has, or
// (3) a new Chromebook has been added to an account for someone who has.
//
// The behavior caused by clicking a notification depends its content as
// described above:
// (1) triggers the setup UI to appear to prompt setup flow and
// (2) & (3) open the Connected Devices subpage in Settings.
//
// Note that if one notification is showing and another one is triggered, the
// old text is replaced (if it's different) and the notification pops up again.
class ASH_EXPORT MultiDeviceNotificationPresenter
: public multidevice_setup::mojom::AccountStatusChangeDelegate,
public SessionObserver,
public message_center::MessageCenterObserver {
public:
explicit MultiDeviceNotificationPresenter(
message_center::MessageCenter* message_center);
MultiDeviceNotificationPresenter(const MultiDeviceNotificationPresenter&) =
delete;
MultiDeviceNotificationPresenter& operator=(
const MultiDeviceNotificationPresenter&) = delete;
~MultiDeviceNotificationPresenter() override;
// Disables notifications for tests.
static std::unique_ptr<base::AutoReset<bool>>
DisableNotificationsForTesting();
// Removes the notification created by NotifyPotentialHostExists() or does
// nothing if that notification is not currently displayed.
void RemoveMultiDeviceSetupNotification();
void UpdateIsSetupNotificationInteracted(
bool is_setup_notificaton_interacted);
// MultiDevice setup notification ID. Public so it can be accessed from
// phone_hub_tray.cc
static const char kSetupNotificationId[];
protected:
// multidevice_setup::mojom::AccountStatusChangeDelegate:
void OnPotentialHostExistsForNewUser() override;
void OnNoLongerNewUser() override;
void OnConnectedHostSwitchedForExistingUser(
const std::string& new_host_device_name) override;
void OnNewChromebookAddedForExistingUser(
const std::string& new_host_device_name) override;
void OnBecameEligibleForWifiSync() override;
// SessionObserver:
void OnUserSessionAdded(const AccountId& account_id) override;
void OnSessionStateChanged(session_manager::SessionState state) override;
// message_center::MessageCenterObserver
void OnNotificationRemoved(const std::string& notification_id,
bool by_user) override;
void OnNotificationClicked(
const std::string& notification_id,
const absl::optional<int>& button_index,
const absl::optional<std::u16string>& reply) override;
private:
friend class MultiDeviceNotificationPresenterTest;
// MultiDevice setup notification ID.
static const char kWifiSyncNotificationId[];
// Represents each possible MultiDevice setup notification that the setup flow
// can show with a "none" option for the general state with no notification
// present.
enum class Status {
kNoNotificationVisible,
kNewUserNotificationVisible,
kExistingUserHostSwitchedNotificationVisible,
kExistingUserNewChromebookNotificationVisible
};
// Reflects MultiDeviceSetupNotification enum in enums.xml. Do not
// rearrange.
enum class NotificationType {
kNewUserPotentialHostExists = 0,
kExistingUserHostSwitched = 1,
kExistingUserNewChromebookAdded = 2,
// This is a legacy error case that is not expected to occur.
kErrorUnknown = 3,
kWifiSyncAnnouncement = 4,
kMaxValue = kWifiSyncAnnouncement
};
static NotificationType GetMetricValueForNotification(
Status notification_status);
static std::string GetNotificationDescriptionForLogging(
Status notification_status);
void ObserveMultiDeviceSetupIfPossible();
void ShowSetupNotification(const Status notification_status,
const std::u16string& title,
const std::u16string& message);
void ShowNotification(const std::string& id,
const std::u16string& title,
const std::u16string& message,
message_center::RichNotificationData optional_fields);
void FlushForTesting();
// Indicates if Phone Hub icon is clicked when the setup notification is
// visible. If the value is true, we do not log event to
// MultiDevice.Setup.NotificationInteracted histogram.
bool is_setup_notification_interacted_ = false;
raw_ptr<message_center::MessageCenter, ExperimentalAsh> message_center_;
// Notification currently showing or
// Status::kNoNotificationVisible if there isn't one.
Status notification_status_ = Status::kNoNotificationVisible;
mojo::Remote<multidevice_setup::mojom::MultiDeviceSetup>
multidevice_setup_remote_;
mojo::Receiver<multidevice_setup::mojom::AccountStatusChangeDelegate>
receiver_{this};
base::WeakPtrFactory<MultiDeviceNotificationPresenter> weak_ptr_factory_{
this};
};
} // namespace ash
#endif // ASH_MULTI_DEVICE_SETUP_MULTI_DEVICE_NOTIFICATION_PRESENTER_H_
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