Index: device/generic_sensor/platform_sensor_ambient_light_mac.h |
diff --git a/device/generic_sensor/platform_sensor_ambient_light_mac.h b/device/generic_sensor/platform_sensor_ambient_light_mac.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..bf5c070744cc8a4405f8d2402818799103288d16 |
--- /dev/null |
+++ b/device/generic_sensor/platform_sensor_ambient_light_mac.h |
@@ -0,0 +1,66 @@ |
+// Copyright 2016 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 DEVICE_GENERIC_PLATFORM_SENSOR_AMBIENT_LIGHT_SENSOR_MAC_H_ |
+#define DEVICE_GENERIC_PLATFORM_SENSOR_AMBIENT_LIGHT_SENSOR_MAC_H_ |
+ |
+#include <IOKit/IOKitLib.h> |
+ |
+#include "base/mac/scoped_ionotificationportref.h" |
+#include "base/mac/scoped_ioobject.h" |
+#include "device/generic_sensor/platform_sensor.h" |
+ |
+namespace base { |
+class SingleThreadTaskRunner; |
+} |
+ |
+namespace device { |
+ |
+// Implementation of PlatformSensor for macOS to query the ambient light sensor. |
+// This is a single instance object per browser process which is created by |
+// The singleton PlatformSensorProviderMac. If there are no clients, this |
+// instance is not created. |
+class PlatformSensorAmbientLightMac : public PlatformSensor { |
+ public: |
+ // Construct a platform sensor of |type| AMBIENT_LIGHT, given |
+ // a buffer |mapping| to write the result back. |task_runner| is |
+ // used to post the notification that the sensor reading has changed. |
+ PlatformSensorAmbientLightMac(mojom::SensorType type, |
+ mojo::ScopedSharedBufferMapping mapping, |
+ PlatformSensorProvider* provider); |
+ |
+ mojom::ReportingMode GetReportingMode() override; |
+ // Can only be called once, the first time or after a StopSensor call. |
+ bool StartSensor(const PlatformSensorConfiguration& configuration) override; |
+ void StopSensor() override; |
+ |
+ protected: |
+ ~PlatformSensorAmbientLightMac() override; |
+ bool CheckSensorConfiguration( |
+ const PlatformSensorConfiguration& configuration) override; |
+ PlatformSensorConfiguration GetDefaultConfiguration() override; |
+ void UpdateReading(uint64_t lux_values[2]); |
+ |
+ private: |
+ static void IOServiceCallback(void* context, |
+ io_service_t service, |
+ natural_t message_type, |
+ void* message_argument); |
+ |
+ // IOService representing the LMU sensor. |
+ base::mac::ScopedIOObject<io_service_t> light_sensor_service_; |
+ // Port used to get the notifications from the sensor. |
+ base::mac::ScopedIONotificationPortRef light_sensor_port_; |
+ // IO Object used to query the value of the sensor. |
+ base::mac::ScopedIOObject<io_object_t> light_sensor_object_; |
+ // IO Notifications created by IOServiceAddInterestNotification. |
+ base::mac::ScopedIOObject<io_object_t> light_sensor_notification_; |
+ double current_lux_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(PlatformSensorAmbientLightMac); |
+}; |
+ |
+} // namespace device |
+ |
+#endif // DEVICE_GENERIC_PLATFORM_SENSOR_AMBIENT_LIGHT_SENSOR_MAC_H_ |