Improving geolocation
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a4994fc47c
commit
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46
index.html
46
index.html
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@ -30,7 +30,7 @@
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</head>
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<body>
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<form method="get" action="#" id="search_form">
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<input type="text" id="q" name="q" value="Phoenix" /><input type="submit" />
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<input type="text" id="q" name="q" value="Tempe, Arizona" /><input type="submit" />
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</form>
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<div id="map"></div>
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<ul id="results"></ul>
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@ -57,20 +57,39 @@
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if(params["q"] && params["q"].length > 0){
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handleQuery(decodeURIComponent(params["q"]).replace(/\+/g, ' '));
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}
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else
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{
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else {
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if (navigator.geolocation)
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{
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navigator.geolocation.getCurrentPosition(function(pos){
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map.setView([pos.coords.latitude,pos.coords.longitude],10);
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// Move the map over
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map.setView([pos.coords.latitude,pos.coords.longitude],12);
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// AJAX request for checking where we are
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reverseLookup(pos.coords.latitude,pos.coords.longitude,10,function(xmlhttp) {
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reverseLookup(pos.coords.latitude,pos.coords.longitude,18,function(xmlhttp) {
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// Decode response as JSON
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response = JSON.parse(xmlhttp.responseText);
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if(response.length > 0){
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console.log(response);
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if(response.address){
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console.log(response.address);
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var loc = "";
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// Set search textbox to where we think we are
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if(response.address.suburb){
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loc += response.address.suburb+", ";
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}
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if(response.address.city){
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loc += response.address.city+", ";
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}
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if(response.address.state){
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loc += response.address.state+", ";
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}
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if(response.address.country){
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loc += response.address.country+", ";
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}
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document.getElementById("q").value = loc;
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}
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else{
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console.log("No reverse-lookup json");
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}
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});
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},function(error){
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console.log(error);
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@ -88,6 +107,8 @@
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forwardLookup(query,function(xmlhttp) {
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// Decode response as JSON
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response = JSON.parse(xmlhttp.responseText);
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console.log(response);
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console.log("SUP");
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if(response.length > 0){
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// Display all results in sidebar
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@ -109,20 +130,21 @@
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xmlhttp=new XMLHttpRequest();
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xmlhttp.open("GET","http://nominatim.openstreetmap.org/search/"+encodeURIComponent(query)+"?format=json",true);
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xmlhttp.send();
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xmlhttp.onreadystatechange = function(xmlhttp){
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xmlhttp.onreadystatechange = function(){
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if (xmlhttp.readyState==4 && xmlhttp.status==200) {
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callback(xmlhttp);
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}
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};
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}
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function reverseLookup(lat,long,zoom,callback){
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function reverseLookup(lat,lon,zoom,callback){
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xmlhttp=new XMLHttpRequest();
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xmlhttp.open("GET","http://nominatim.openstreetmap.org/reverse?format=json&lat="+encodeURIComponent(lat)+"&lon="+encodeURIComponent(lat)+"&zoom="+encodeURIComponent(zoom),true);
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request = "http://nominatim.openstreetmap.org/reverse?format=json&lat="+encodeURIComponent(lat)+"&lon="+encodeURIComponent(lon)+"&zoom="+encodeURIComponent(zoom);
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xmlhttp.open("GET",request,true);
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xmlhttp.send();
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xmlhttp.onreadystatechange = function(xmlhttp){
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xmlhttp.onreadystatechange = function(){
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if (xmlhttp.readyState==4 && xmlhttp.status==200) {
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callback();
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callback(xmlhttp);
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}
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};
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}
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