;var running=false;var watchId=undefined;var sep="<br />************<br />";var _=undefined;var locations=undefined;function successWatch(position){var debug=document.getElementById('geoloc-debug').checked;var s=document.querySelector('#log');if(!debug){s.innerHTML="";}
if(keep()){locations.push(position);}
s.innerHTML=sep+s.innerHTML;for(var i in position.coords){var e=position.coords[i];if(typeof e=='number'){s.innerHTML=i+":"+position.coords[i]+"<br />"+s.innerHTML;}}
var link='<a href="http://www.openstreetmap.org/?mlat='+position.coords.latitude+'&mlon='+position.coords.longitude+'&zoom=16">Show on map</a><br />';s.innerHTML=link+s.innerHTML;var nbfixes=document.getElementById('nbr-gps-fixes');nbfixes.value=parseInt(nbfixes.value)+1;var datefix=document.getElementById('date-last-fix');var cdate=new Date();var localeFormat=cdate.toLocaleString(navigator.languages,{month:'numeric',day:'numeric',year:'numeric'});datefix.value=localeFormat;}
function errorWatch(msg){var s=document.querySelector('#log');if(typeof msg=="object"){if(msg.code==1){msg="Permission denied";}
if(msg.code==2){msg="Position unavailable";}
if(msg.code==3){msg="Timed out";}}
s.innerHTML=sep+msg+sep+s.innerHTML;}
function successGet(position){successWatch(position);enable('btnGet');enable('btnStart');enable('btnClear');enable('btnSave');}
function errorGet(msg){errorWatch(msg);enable('btnGet');enable('btnStart');enable('btnClear');}
function getOptions(){if(navigator.geolocation){locations=new Array();document.getElementById('nbr-gps-fixes').value="0";document.getElementById('date-last-fix').value="";show('status');if(document.getElementById('geoloc-debug').checked){show('debuglog');}
running=true;return{enableHighAccuracy:document.getElementById('geoloc-highaccuracy').checked?true:false,timeout:parseInt(document.getElementById('geoloc-timeout').value),maximumAge:parseInt(document.getElementById('geoloc-maxage').value)};}
errorWatch('not supported');return null;}
function getGeoloc(){errorWatch("getting current position");options=getOptions();if(options){navigator.geolocation.getCurrentPosition(successGet,errorGet,options);disable('btnGet');disable('btnStart');disable('btnStop');disable('btnClear');disable('btnSave');}}
function startGeoloc(){errorWatch("Starting watchPosition");options=getOptions();if(options){watchId=navigator.geolocation.watchPosition(successWatch,errorWatch,options);enable('btnStop');enable('btnClear');disable('btnGet');disable('btnStart');disable('btnSave');}}
function stopGeoloc(){if(watchId!=undefined){errorWatch("Stopping watchPosition");navigator.geolocation.clearWatch(watchId);disable('btnStop');enable('btnGet');enable('btnClear');enable('btnStart');if(keep()){enable('btnSave');}
running=false;}}
function clearGeoloc(){var s=document.querySelector('#log');s.innerHTML="";}
function locationsToGPX(){var xmldoc=document.implementation.createDocument("","",null);var doc=xmldoc.createElementNS('http://www.topografix.com/GPX/1/1','gpx');doc.setAttribute('creator','FirefoxOS geotracker');doc.setAttribute('version','1.1');xmldoc.appendChild(doc);var time=xmldoc.createElement('time');var dtf=Intl.DateTimeFormat(navigator.languages,{year:'numeric',moth:'numeric',day:'numeric',hour:'numeric',minute:'numeric',second:'numeric',timeZoneName:'short'});var ts=xmldoc.createTextNode(dtf.format(new Date()));time.appendChild(ts);doc.appendChild(time);var createSimpleNode=function(name,value){var e=xmldoc.createElement(name);e.appendChild(xmldoc.createTextNode(value));return e;};for(var ei in locations){var e=locations[ei];var x=xmldoc.createElement('wpt');x.setAttribute('lat',e.coords.latitude);x.setAttribute('lon',e.coords.longitude);var ele=createSimpleNode('ele',e.coords.altitude);x.appendChild(ele);var time=createSimpleNode('time',dtf.format(new Date(e.timestamp)));x.appendChild(time);var ext=xmldoc.createElement('extensions');x.appendChild(ext);var accuracy=createSimpleNode('accuracy',e.coords.accuracy);ext.appendChild(accuracy);var altitudeAccuracy=createSimpleNode('altitudeAccuracy',e.coords.altitudeAccuracy);ext.appendChild(altitudeAccuracy);if(!isNaN(e.coords.speed)){var speed=createSimpleNode('speed',e.coords.speed);ext.appendChild(speed);}
if(!isNaN(e.coords.heading)){var heading=createSimpleNode('heading',e.coords.heading);ext.appendChild(heading);}
doc.appendChild(x);}
return xmldoc;}
function locationsToFile(format){var xmldoc=undefined;if(format=="gpx"){xmldoc=locationsToGPX();}
var oSerializer=new XMLSerializer();return'<?xml version="1.0" ?>'
+oSerializer.serializeToString(xmldoc);}
function saveGeoloc(){var date=(new Date()).toLocaleFormat("%Y%m%d%H%M%S");var file=locationsToFile("gpx");var blob=new Blob([file],{type:'application/gpx+xml'});var fname="geoloc/geoloc-"+date+".gpx";var storage=navigator.getDeviceStorage('sdcard');if(!storage){console.log("No storage available!");console.log(file);return;}
var save=storage.addNamed(blob,fname);save.onsuccess=function(){alert("Successfully saved "+fname);};save.onerror=function(){alert("Error while saving to "+fname+": "+this.error.name);};}
function enable(id){var e=document.getElementById(id);if(e){e.disabled=false;}}
function disable(id){var e=document.getElementById(id);if(e){e.disabled=true;}}
function show(id){var e=document.getElementById(id);if(e){e.style.display="block";}}
function hide(id){var e=document.getElementById(id);if(e){e.style.display="none";}}
function keep(){var e=document.getElementById('geoloc-keep');if(e){return e.checked;}
return false;}
window.addEventListener('DOMContentLoaded',function(){_=navigator.mozL10n.get;disable('btnStop');disable('btnClear');disable('btnSave');hide('parameters');hide('status');hide('debuglog');var keep=document.getElementById('geoloc-keep');keep.addEventListener('change',function(ev){if(running){return;}
if(ev.target.checked){enable('btnSave');}else{disable('btnSave');}});document.getElementById('geoloc-debug').addEventListener('change',function(ev){if(ev.target.checked){show('debuglog');}else{hide('debuglog');}});var showHideDiv=function(ev,tgt){var clicktarget=document.getElementById(tgt);clicktarget.addEventListener(ev,function(ev){var target=ev.target.dataset['hide'];var el=document.getElementById(target);if(el){if(el.style.display==""||el.style.display=="block"){hide(target);}else{show(target);}}});};showHideDiv('click','h1-parameters');showHideDiv('click','h1-status');showHideDiv('click','h1-debuglog');document.getElementById('btnGet').addEventListener('click',getGeoloc);document.getElementById('btnStart').addEventListener('click',startGeoloc);document.getElementById('btnStop').addEventListener('click',stopGeoloc);document.getElementById('btnClear').addEventListener('click',clearGeoloc);document.getElementById('btnSave').addEventListener('click',saveGeoloc);});