fix geolocation accuracy bounds, add more event data, close #984, rel…

…ated #584, #987, #1028

src/map/ext/Map.Geolocation.js

@@ -60,13 +60,13 @@ L.Map.include({
 	},
 
 	_handleGeolocationResponse: function (pos) {
-		var latAccuracy = 180 * pos.coords.accuracy / 4e7,
-		    lngAccuracy = latAccuracy * 2,
-
-		    lat = pos.coords.latitude,
+		var lat = pos.coords.latitude,
 		    lng = pos.coords.longitude,
 		    latlng = new L.LatLng(lat, lng),
 
+		    latAccuracy = 180 * pos.coords.accuracy / 40075017,
+		    lngAccuracy = latAccuracy / Math.cos(L.LatLng.DEG_TO_RAD * lat),
+
 		    sw = new L.LatLng(lat - latAccuracy, lng - lngAccuracy),
 		    ne = new L.LatLng(lat + latAccuracy, lng + lngAccuracy),
 		    bounds = new L.LatLngBounds(sw, ne),
@@ -78,10 +78,11 @@ L.Map.include({
 			this.setView(latlng, zoom);
 		}
 
-		this.fire('locationfound', {
+		var event = L.extend({
 			latlng: latlng,
-			bounds: bounds,
-			accuracy: pos.coords.accuracy
-		});
+			bounds: bounds
+		}, pos.coords);
+
+		this.fire('locationfound', event);
 	}
 });