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 ASH_ACCELEROMETER_ACCELEROMETER_OBSERVER_H_ 6 #define ASH_ACCELEROMETER_ACCELEROMETER_OBSERVER_H_ 7 8 #include "ash/ash_export.h" 9 #include "ui/accelerometer/accelerometer_types.h" 10 11 namespace ash { 12 13 // The interface for classes which observe accelerometer updates. 14 class ASH_EXPORT AccelerometerObserver { 15 public: 16 // Invoked when an accelerometer reading has been taken. The |update| can 17 // contain readings from one or more AccelerometerSources. 18 virtual void OnAccelerometerUpdated( 19 const ui::AccelerometerUpdate& update) = 0; 20 21 protected: 22 virtual ~AccelerometerObserver() {} 23 }; 24 25 } // namespace ash 26 27 #endif // ASH_ACCELEROMETER_ACCELEROMETER_OBSERVER_H_ 28
