| // Copyright 2019 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef SERVICES_DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_PROVIDER_WINRT_H_ |
| #define SERVICES_DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_PROVIDER_WINRT_H_ |
| |
| #include "services/device/generic_sensor/platform_sensor_provider.h" |
| |
| namespace device { |
| |
| class PlatformSensorReaderWinBase; |
| |
| // Helper class used to instantiate new PlatformSensorReaderWinBase instances. |
| class SensorReaderFactory { |
| public: |
| virtual ~SensorReaderFactory() = default; |
| virtual std::unique_ptr<PlatformSensorReaderWinBase> CreateSensorReader( |
| mojom::SensorType type); |
| }; |
| |
| // Implementation of PlatformSensorProvider for Windows platform using the |
| // Windows.Devices.Sensors WinRT API. PlatformSensorProviderWinrt is |
| // responsible for the following tasks: |
| // - Starts sensor thread and stops it when there are no active sensors. |
| // - Creates sensor reader. |
| // - Constructs PlatformSensorWin on IPC thread and returns it to requester. |
| class PlatformSensorProviderWinrt final : public PlatformSensorProvider { |
| public: |
| PlatformSensorProviderWinrt(); |
| ~PlatformSensorProviderWinrt() override; |
| |
| void SetSensorReaderFactoryForTesting( |
| std::unique_ptr<SensorReaderFactory> sensor_reader_factory); |
| |
| protected: |
| // PlatformSensorProvider interface implementation. |
| void CreateSensorInternal(mojom::SensorType type, |
| SensorReadingSharedBuffer* reading_buffer, |
| CreateSensorCallback callback) override; |
| |
| private: |
| std::unique_ptr<PlatformSensorReaderWinBase> CreateSensorReader( |
| mojom::SensorType type); |
| |
| void SensorReaderCreated( |
| mojom::SensorType type, |
| SensorReadingSharedBuffer* reading_buffer, |
| CreateSensorCallback callback, |
| std::unique_ptr<PlatformSensorReaderWinBase> sensor_reader); |
| |
| // The Windows.Devices.Sensors WinRT API supports both STA and MTA |
| // threads. STA was chosen as PlatformSensorWin can only handle STA. |
| scoped_refptr<base::SingleThreadTaskRunner> com_sta_task_runner_; |
| |
| std::unique_ptr<SensorReaderFactory> sensor_reader_factory_; |
| |
| PlatformSensorProviderWinrt(const PlatformSensorProviderWinrt&) = delete; |
| PlatformSensorProviderWinrt& operator=(const PlatformSensorProviderWinrt&) = |
| delete; |
| }; |
| |
| } // namespace device |
| |
| #endif // SERVICES_DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_PROVIDER_WINRT_H_ |