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// Copyright 2015 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 CONTENT_BROWSER_DEVICE_SENSORS_AMBIENT_LIGHT_MAC_H_
#define CONTENT_BROWSER_DEVICE_SENSORS_AMBIENT_LIGHT_MAC_H_
#include <IOKit/IOKitLib.h>
#include "base/memory/scoped_ptr.h"
namespace content {
// Provides an interface to retrieve ambient light data from MacBooks.
class AmbientLightSensor {
public:
// Create AmbientLightSensor object, return NULL if no valid is sensor found.
static scoped_ptr<AmbientLightSensor> Create();
~AmbientLightSensor();
// Retrieve lux values from Ambient Light Sensor.
bool ReadSensorValue(uint64_t lux_value[2]);
private:
AmbientLightSensor();
// Probe the local hardware looking for Ambient Light sensor and
// initialize an I/O connection to it.
bool Init();
// IOKit connection to the local sensor.
io_connect_t io_connection_;
DISALLOW_COPY_AND_ASSIGN(AmbientLightSensor);
};
} // namespace content
#endif // CONTENT_BROWSER_DEVICE_SENSORS_AMBIENT_LIGHT_MAC_H_