ash/accelerometer/accelerometer_observer.h

// 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 ASH_ACCELEROMETER_ACCELEROMETER_OBSERVER_H_
#define ASH_ACCELEROMETER_ACCELEROMETER_OBSERVER_H_

#include "ash/ash_export.h"

namespace gfx {
class Vector3dF;
}

namespace ash {

// The interface for classes which observe accelerometer updates.
class ASH_EXPORT AccelerometerObserver {
 public:
  // Invoked when an accelerometer reading has been taken. The |base| and |lid|
  // accelerometer readings are in G's.
  virtual void OnAccelerometerUpdated(const gfx::Vector3dF& base,
                                      const gfx::Vector3dF& lid) = 0;

 protected:
  virtual ~AccelerometerObserver() {}
};

}  // namespace ash

#endif  // ASH_ACCELEROMETER_ACCELEROMETER_OBSERVER_H_