LocationManager: expose more information from the backend to the apps

note: GnssStatus was accidentally bundled into ab5b600bf1

src/api-impl-jni/location/android_location_LocationManager.c

@@ -14,12 +14,13 @@ static void location_updated (
 	gchar* description,
 	gint64 timestamp_s,
 	gint64 timestamp_ms,
-	JavaVM *jvm
-) {
+	JavaVM *jvm)
+{
 	JNIEnv *env;
 	(*jvm)->GetEnv(jvm, (void**)&env, JNI_VERSION_1_6);
 	jclass class = (*env)->FindClass(env, "android/location/LocationManager");
-	(*env)->CallStaticVoidMethod(env, class, _STATIC_METHOD(class, "locationUpdated", "(DDD)V"), latitude, longitude, heading);
+	jlong timestamp = timestamp_s * 1000 + timestamp_ms;
+	(*env)->CallStaticVoidMethod(env, class, _STATIC_METHOD(class, "locationUpdated", "(DDDDDDJ)V"), latitude, longitude, altitude, accuracy, speed, heading, timestamp);
 }
 
 JNIEXPORT void JNICALL Java_android_location_LocationManager_nativeGetLocation(JNIEnv *env, jobject) {

src/api-impl/android/hardware/SensorManager.java

@@ -23,7 +23,7 @@ public class SensorManager {
 				new LocationManager().requestLocationUpdates(null, 0, 0, new LocationListener() {
 					@Override
 					public void onLocationChanged(Location location) {
-						listener.onSensorChanged(new SensorEvent(new float[]{(float)location.getBearing()}, sensor));
+						listener.onSensorChanged(new SensorEvent(new float[]{location.getBearing()}, sensor));
 					}
 				});
 				return true;

src/api-impl/android/location/Location.java

@@ -4,12 +4,27 @@ public class Location {
 
 	private double latitude;
 	private double longitude;
+	private double altitude;
+	private double accuracy;
+	private double speed;
 	private double bearing;
+	private long timestamp;
 
-	public Location (double latitude, double longitude, double bearing) {
+	/* for internal use */
+	public Location (double latitude,
+	                 double longitude,
+	                 double altitude,
+	                 double accuracy,
+	                 double speed,
+	                 double bearing,
+	                 long timestamp) {
 		this.latitude = latitude;
 		this.longitude = longitude;
+		this.altitude = altitude;
+		this.accuracy = accuracy;
+		this.speed = speed;
 		this.bearing = bearing;
+		this.timestamp = timestamp;
 	}
 
 	public double getLatitude() {
@@ -20,8 +35,43 @@ public class Location {
 		return longitude;
 	}
 
-	public double getBearing() {
-		return bearing;
+	public boolean hasAltitude() {
+		return altitude != -Double.MAX_VALUE;
 	}
 
+	public double getAltitude() {
+		return altitude;
+	}
+
+	public boolean hasAccuracy() {
+		return true;
+	}
+
+	public float getAccuracy() {
+		return (float)accuracy;
+	}
+
+	public boolean hasSpeed() {
+		return speed != -1;
+	}
+
+	public float getSpeed() {
+		return (float)speed;
+	}
+
+	public boolean hasBearing() {
+		return bearing != -1;
+	}
+
+	public float getBearing() {
+		return (float)bearing;
+	}
+
+	public long getTime() {
+		return timestamp;
+	}
+
+	public String getProvider() {
+		return "fused";
+	}
 }

src/api-impl/android/location/LocationManager.java

@@ -1,7 +1,10 @@
 package android.location;
 
 import android.os.Bundle;
+import android.os.Handler;
+import android.os.Looper;
 
+import java.lang.Runnable;
 import java.util.Collections;
 import java.util.HashSet;
 import java.util.List;
@@ -26,9 +29,15 @@ public class LocationManager {
 
 	private native void nativeGetLocation();
 
-	private static void locationUpdated(double latitude, double longitude, double heading) {
+	private static void locationUpdated(double latitude,
+	                                    double longitude,
+	                                    double altitude,
+	                                    double accuracy,
+	                                    double speed,
+	                                    double bearing,
+	                                    long timestamp) {
 		for (LocationListener locationListener : listeners) {
-			locationListener.onLocationChanged(new Location(latitude, longitude, heading));
+			locationListener.onLocationChanged(new Location(latitude, longitude, altitude, accuracy, speed, bearing, timestamp));
 		}
 	}
 
@@ -42,4 +51,21 @@ public class LocationManager {
 	public List<String> getAllProviders() {
 		return Collections.emptyList();
 	}
+
+	public List<String> getProviders(boolean enabledOnly) {
+		return Collections.emptyList();
+	}
+
+	public boolean registerGnssStatusCallback(GnssStatus.Callback callback, Handler handler) {
+		new Handler(Looper.getMainLooper()).post(new Runnable() {
+			@Override
+			public void run() {
+				callback.onSatelliteStatusChanged(new GnssStatus());
+			}
+		});
+		return true;
+	}
+
+	public void unregisterGnssStatusCallback(GnssStatus.Callback callback) {
+	}
 }

src/api-impl/meson.build

@@ -259,6 +259,7 @@ srcs = [
 	'android/hardware/input/InputManager.java',
 	'android/hardware/usb/UsbManager.java',
 	'android/location/Criteria.java',
+	'android/location/GnssStatus.java',
 	'android/location/Location.java',
 	'android/location/LocationListener.java',
 	'android/location/LocationManager.java',