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| 1 // Copyright 2017 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 DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_ACCELEROMETER_MAC_H_ |
| 6 #define DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_ACCELEROMETER_MAC_H_ |
| 7 |
| 8 #include <memory> |
| 9 |
| 10 #include "base/timer/timer.h" |
| 11 #include "device/generic_sensor/platform_sensor.h" |
| 12 |
| 13 class SuddenMotionSensor; |
| 14 |
| 15 namespace device { |
| 16 |
| 17 // Implementation of PlatformSensor for macOS to query the accelerometer |
| 18 // sensor. |
| 19 // This is a single instance object per browser process which is created by |
| 20 // The singleton PlatformSensorProviderMac. If there are no clients, this |
| 21 // instance is not created. |
| 22 class PlatformSensorAccelerometerMac : public PlatformSensor { |
| 23 public: |
| 24 // Construct a platform sensor of type ACCELEROMETER, given a buffer |mapping| |
| 25 // where readings will be written. |
| 26 PlatformSensorAccelerometerMac(mojo::ScopedSharedBufferMapping mapping, |
| 27 PlatformSensorProvider* provider); |
| 28 |
| 29 mojom::ReportingMode GetReportingMode() override; |
| 30 // Can only be called once, the first time or after a StopSensor call. |
| 31 bool StartSensor(const PlatformSensorConfiguration& configuration) override; |
| 32 void StopSensor() override; |
| 33 |
| 34 protected: |
| 35 ~PlatformSensorAccelerometerMac() override; |
| 36 bool CheckSensorConfiguration( |
| 37 const PlatformSensorConfiguration& configuration) override; |
| 38 PlatformSensorConfiguration GetDefaultConfiguration() override; |
| 39 |
| 40 private: |
| 41 void PollForData(); |
| 42 |
| 43 std::unique_ptr<SuddenMotionSensor> sudden_motion_sensor_; |
| 44 |
| 45 SensorReading reading_; |
| 46 |
| 47 // Repeating timer for data polling. |
| 48 base::RepeatingTimer timer_; |
| 49 |
| 50 DISALLOW_COPY_AND_ASSIGN(PlatformSensorAccelerometerMac); |
| 51 }; |
| 52 |
| 53 } // namespace device |
| 54 |
| 55 #endif // DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_ACCELEROMETER_MAC_H_ |
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