| // 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. |
| |
| #ifndef COMPONENTS_INVALIDATION_TICL_SETTINGS_PROVIDER_H_ |
| #define COMPONENTS_INVALIDATION_TICL_SETTINGS_PROVIDER_H_ |
| |
| #include "base/macros.h" |
| #include "base/observer_list.h" |
| |
| namespace invalidation { |
| |
| // Provides configuration settings to TiclInvalidationService and notifies it |
| // when the settings change. |
| class TiclSettingsProvider { |
| public: |
| class Observer { |
| public: |
| virtual void OnUseGCMChannelChanged() = 0; |
| |
| protected: |
| virtual ~Observer(); |
| }; |
| |
| TiclSettingsProvider(); |
| virtual ~TiclSettingsProvider(); |
| |
| virtual bool UseGCMChannel() const = 0; |
| |
| void AddObserver(Observer* observer); |
| void RemoveObserver(Observer* observer); |
| |
| protected: |
| void FireOnUseGCMChannelChanged(); |
| |
| private: |
| ObserverList<Observer, true> observers_; |
| |
| DISALLOW_COPY_AND_ASSIGN(TiclSettingsProvider); |
| }; |
| |
| } // namespace invalidation |
| |
| #endif // COMPONENTS_INVALIDATION_TICL_SETTINGS_PROVIDER_H_ |