1 // Copyright (c) 2012 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 ASH_SYSTEM_DATE_CLOCK_OBSERVER_H_ 6 #define ASH_SYSTEM_DATE_CLOCK_OBSERVER_H_ 7 8 #include "ash/ash_export.h" 9 10 namespace ash { 11 12 class ASH_EXPORT ClockObserver { 13 public: 14 virtual ~ClockObserver() {} 15 16 virtual void OnDateFormatChanged() = 0; 17 virtual void OnSystemClockTimeUpdated() = 0; 18 virtual void OnSystemClockCanSetTimeChanged(bool can_set_time) = 0; 19 20 // Force a refresh (e.g. after the system is resumed). 21 virtual void Refresh() = 0; 22 }; 23 24 } // namespace ash 25 26 #endif // ASH_SYSTEM_DATE_CLOCK_OBSERVER_H_ 27
