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Improving geolocation

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This commit is contained in:
Will Bradley 2013-07-28 04:45:08 -04:00
parent a4994fc47c
commit ffcfda22d5
1 changed files with 34 additions and 12 deletions
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46
index.html
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@ -30,7 +30,7 @@
</head>
<body>
<form method="get" action="#" id="search_form">
<input type="text" id="q" name="q" value="Phoenix" /><input type="submit" />
<input type="text" id="q" name="q" value="Tempe, Arizona" /><input type="submit" />
</form>
<div id="map"></div>
<ul id="results"></ul>
@ -57,19 +57,38 @@
if(params["q"] && params["q"].length > 0){
handleQuery(decodeURIComponent(params["q"]).replace(/\+/g, ' '));
}
else
{
else {
if (navigator.geolocation)
{
navigator.geolocation.getCurrentPosition(function(pos){
map.setView([pos.coords.latitude,pos.coords.longitude],10);
// Move the map over
map.setView([pos.coords.latitude,pos.coords.longitude],12);
// AJAX request for checking where we are
reverseLookup(pos.coords.latitude,pos.coords.longitude,10,function(xmlhttp) {
reverseLookup(pos.coords.latitude,pos.coords.longitude,18,function(xmlhttp) {
// Decode response as JSON
response = JSON.parse(xmlhttp.responseText);
if(response.length > 0){
console.log(response);
if(response.address){
console.log(response.address);
var loc = "";
// Set search textbox to where we think we are
if(response.address.suburb){
loc += response.address.suburb+", ";
}
if(response.address.city){
loc += response.address.city+", ";
}
if(response.address.state){
loc += response.address.state+", ";
}
if(response.address.country){
loc += response.address.country+", ";
}
document.getElementById("q").value = loc;
}
else{
console.log("No reverse-lookup json");
}
});
},function(error){
@ -88,6 +107,8 @@
forwardLookup(query,function(xmlhttp) {
// Decode response as JSON
response = JSON.parse(xmlhttp.responseText);
console.log(response);
console.log("SUP");
if(response.length > 0){
// Display all results in sidebar
@ -109,20 +130,21 @@
xmlhttp=new XMLHttpRequest();
xmlhttp.open("GET","http://nominatim.openstreetmap.org/search/"+encodeURIComponent(query)+"?format=json",true);
xmlhttp.send();
xmlhttp.onreadystatechange = function(xmlhttp){
xmlhttp.onreadystatechange = function(){
if (xmlhttp.readyState==4 && xmlhttp.status==200) {
callback(xmlhttp);
}
};
}
function reverseLookup(lat,long,zoom,callback){
function reverseLookup(lat,lon,zoom,callback){
xmlhttp=new XMLHttpRequest();
xmlhttp.open("GET","http://nominatim.openstreetmap.org/reverse?format=json&lat="+encodeURIComponent(lat)+"&lon="+encodeURIComponent(lat)+"&zoom="+encodeURIComponent(zoom),true);
request = "http://nominatim.openstreetmap.org/reverse?format=json&lat="+encodeURIComponent(lat)+"&lon="+encodeURIComponent(lon)+"&zoom="+encodeURIComponent(zoom);
xmlhttp.open("GET",request,true);
xmlhttp.send();
xmlhttp.onreadystatechange = function(xmlhttp){
xmlhttp.onreadystatechange = function(){
if (xmlhttp.readyState==4 && xmlhttp.status==200) {
callback();
callback(xmlhttp);
}
};
}