geo.js

function Geo() {}

Geo.prototype.getCurrentPosition = function(_callback) {
	var longitude = 0;
	var latitude = 0;
	var altitude = 0;
	var heading = 0;
	var accuracy = 0;
	var speed = 0;
	var timestamp = 0;
	var altitudeAccuracy = 0;
	
	Ti.Geolocation.preferredProvider = "gps";
	Ti.Geolocation.purpose = "GPS";
	Titanium.Geolocation.accuracy = Titanium.Geolocation.ACCURACY_BEST;
	Titanium.Geolocation.distanceFilter = 10;

	if( typeof (Number.prototype.toRad) === "undefined") {
		Number.prototype.toRad = function() {
			return this * Math.PI / 180;
		}
	}

	Titanium.Geolocation.addEventListener('location', function(e) {
		if(e.error) {
			// manage the error
			return;
		}
		longitude = e.coords.longitude;
		latitude = e.coords.latitude;
		altitude = e.coords.altitude;
		heading = e.coords.heading;
		accuracy = e.coords.accuracy;
		speed = e.coords.speed;
		timestamp = e.coords.timestamp;
		altitudeAccuracy = e.coords.altitudeAccuracy;
	});
	
	var outData = {};
	
	
	if(Titanium.Geolocation.locationServicesEnabled === false) {
		Titanium.UI.createAlertDialog({
			title : 'Barrandiando',
			message : 'Your device has geo turned off - turn it on.'
		}).show();
	} else {
		if(Titanium.Platform.name != 'android') {
			var authorization = Titanium.Geolocation.locationServicesAuthorization;
			Ti.API.info('Authorization: ' + authorization);
			if(authorization == Titanium.Geolocation.AUTHORIZATION_DENIED) {
				Ti.UI.createAlertDialog({
					title : 'Barrandiando',
					message : 'You have disallowed Barrandiando from running geolocation services.'
				}).show();
			} else if(authorization == Titanium.Geolocation.AUTHORIZATION_RESTRICTED) {
				Ti.UI.createAlertDialog({
					title : 'Barrandiando',
					message : 'Your system has disallowed Barrandiando from running geolocation services.'
				}).show();
			}
		}

		//
		// GET CURRENT POSITION - THIS FIRES ONCE
		//
		Titanium.Geolocation.getCurrentPosition(function(e) {
			if(!e.success || e.error) {
				alert('error ' + JSON.stringify(e.error));
				return;
			}
			longitude = e.coords.longitude;
			latitude = e.coords.latitude;
			altitude = e.coords.altitude;
			heading = e.coords.heading;
			accuracy = e.coords.accuracy;
			speed = e.coords.speed;
			timestamp = e.coords.timestamp;
			altitudeAccuracy = e.coords.altitudeAccuracy;
			outData = {
				latitude : latitude,
				longitude : longitude,
				altitude : altitude,
				heading : heading,
				accuracy : accuracy,
				speed : speed,
				timestamp : timestamp,
				altitudeAccuracy : altitudeAccuracy
			}
			if(_callback) {
            	_callback(outData);
        }
		});
	}
};
module.exports = Geo;