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1 // Copyright 2016 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_WIN_H_ | |
6 #define DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_WIN_H_ | |
7 | |
8 #include "base/memory/weak_ptr.h" | |
9 #include "device/generic_sensor/platform_sensor.h" | |
10 #include "device/generic_sensor/platform_sensor_reader_win.h" | |
11 | |
12 namespace base { | |
13 class SingleThreadTaskRunner; | |
14 } | |
15 | |
16 namespace device { | |
17 | |
18 // Implementation of PlatformSensor interface for Windows platform. Instance | |
19 // of PlatformSensorWin is bound to IPC thread where PlatformSensorProvider is | |
20 // running and communication with Windows platform sensor is done through | |
21 // PlatformSensorReaderWin |sensor_reader_| interface which is bound to sensor | |
22 // thread and communicates with PlatformSensorWin using | |
23 // PlatformSensorReaderWin::Client interface. The error and data change events | |
24 // are forwarded to IPC task runner. | |
25 class PlatformSensorWin final : public PlatformSensor, | |
26 public PlatformSensorReaderWin::Client { | |
27 public: | |
28 PlatformSensorWin( | |
29 mojom::SensorType type, | |
30 mojo::ScopedSharedBufferMapping mapping, | |
31 PlatformSensorProvider* provider, | |
32 scoped_refptr<base::SingleThreadTaskRunner> sensor_thread_runner, | |
33 std::unique_ptr<PlatformSensorReaderWin> sensor_reader); | |
34 | |
35 PlatformSensorConfiguration GetDefaultConfiguration() override; | |
36 mojom::ReportingMode GetReportingMode() override; | |
37 double GetMaximumSupportedFrequency() override; | |
38 | |
39 // PlatformSensorReaderWin::Client interface implementation. | |
40 void OnReadingUpdated(const SensorReading& reading) override; | |
41 void OnSensorError() override; | |
42 | |
43 protected: | |
44 ~PlatformSensorWin() override; | |
45 | |
46 // PlatformSensor interface implementation. | |
47 bool StartSensor(const PlatformSensorConfiguration& configuration) override; | |
48 void StopSensor() override; | |
49 bool CheckSensorConfiguration( | |
50 const PlatformSensorConfiguration& configuration) override; | |
51 | |
52 private: | |
53 scoped_refptr<base::SingleThreadTaskRunner> sensor_thread_runner_; | |
54 PlatformSensorReaderWin* const sensor_reader_; | |
55 base::WeakPtrFactory<PlatformSensorWin> weak_factory_; | |
56 | |
57 DISALLOW_COPY_AND_ASSIGN(PlatformSensorWin); | |
58 }; | |
59 | |
60 } // namespace device | |
61 | |
62 #endif // DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_WIN_H_ | |
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