| // Copyright 2017 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. |
| |
| #ifndef CHROMEOS_COMPONENTS_TETHER_GMS_CORE_NOTIFICATIONS_STATE_TRACKER_H_ |
| #define CHROMEOS_COMPONENTS_TETHER_GMS_CORE_NOTIFICATIONS_STATE_TRACKER_H_ |
| |
| #include <string> |
| #include <vector> |
| |
| #include "base/macros.h" |
| #include "base/observer_list.h" |
| |
| namespace chromeos { |
| |
| namespace tether { |
| |
| // Tracks the names of potential Tether host devices whose "Google Play |
| // Services" notifications are disabled. These notifications are required to be |
| // enabled in order to utilize Instant Tethering. |
| class GmsCoreNotificationsStateTracker { |
| public: |
| class Observer { |
| public: |
| virtual void OnGmsCoreNotificationStateChanged() = 0; |
| }; |
| |
| GmsCoreNotificationsStateTracker(); |
| virtual ~GmsCoreNotificationsStateTracker(); |
| |
| // Returns a list of names of all potential Tether hosts which replied that |
| // their "Google Play Services" notifications were disabled during the most |
| // recent host scan. |
| virtual std::vector<std::string> |
| GetGmsCoreNotificationsDisabledDeviceNames() = 0; |
| |
| void AddObserver(Observer* observer); |
| void RemoveObserver(Observer* observer); |
| |
| protected: |
| void NotifyGmsCoreNotificationStateChanged(); |
| |
| private: |
| base::ObserverList<Observer>::Unchecked observer_list_; |
| |
| DISALLOW_COPY_AND_ASSIGN(GmsCoreNotificationsStateTracker); |
| }; |
| |
| } // namespace tether |
| |
| } // namespace chromeos |
| |
| #endif // CHROMEOS_COMPONENTS_TETHER_GMS_CORE_NOTIFICATIONS_STATE_TRACKER_H_ |