ticl_settings_provider.h revision 0de6073388f4e2780db8536178b129cd8f6ab386
1// Copyright 2014 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef COMPONENTS_INVALIDATION_TICL_SETTINGS_PROVIDER_H_ 6#define COMPONENTS_INVALIDATION_TICL_SETTINGS_PROVIDER_H_ 7 8#include "base/macros.h" 9#include "base/observer_list.h" 10 11namespace invalidation { 12 13// Provides configuration settings to TiclInvalidationService and notifies it 14// when the settings change. 15class TiclSettingsProvider { 16 public: 17 class Observer { 18 public: 19 virtual void OnUseGCMChannelChanged() = 0; 20 21 protected: 22 virtual ~Observer(); 23 }; 24 25 TiclSettingsProvider(); 26 virtual ~TiclSettingsProvider(); 27 28 virtual bool UseGCMChannel() const = 0; 29 30 void AddObserver(Observer* observer); 31 void RemoveObserver(Observer* observer); 32 33 protected: 34 void FireOnUseGCMChannelChanged(); 35 36 private: 37 ObserverList<Observer, true> observers_; 38 39 DISALLOW_COPY_AND_ASSIGN(TiclSettingsProvider); 40}; 41 42} // namespace invalidation 43 44#endif // COMPONENTS_INVALIDATION_TICL_SETTINGS_PROVIDER_H_ 45