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Added dynamic result list

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This commit is contained in:
Will Bradley 2013-07-28 02:34:38 -04:00
parent 6353e2f7db
commit 1e1b5c5563
1 changed files with 61 additions and 24 deletions
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85
index.html
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@ -5,22 +5,42 @@
<link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet-0.6.4/leaflet.ie.css" />
<![endif]-->
<style type="text/css">
#map { height: 600px; }
#map {
height: 600px;
width: 80%;
}
#results {
width: 18%;
position: absolute;
top: 0;
right: 0;
}
#results li span {
cursor: pointer;
color: blue;
text-decoration: underline;
}
.active_result {
background-color: #eee;
}
</style>
<script src="http://cdn.leafletjs.com/leaflet-0.6.4/leaflet.js"></script>
</head>
<body>
<form method="get" action="#">
<form method="get" action="#" id="search_form">
<input type="text" id="q" name="q" value="Phoenix" /><input type="submit" />
</form>
<div id="map"></div>
<ul id="results">
<h3>Results</h3>
</ul>
<script type="text/javascript">
var map = L.map('map').setView([51.505, -0.09], 13);
L.tileLayer('http://{s}.tile.cloudmade.com/4be2d4a8b7ae4a5e8ebc0558bb5d7db4/997/256/{z}/{x}/{y}.png', {
attribution: 'Map data &copy; <a href="http://openstreetmap.org">OpenStreetMap</a> contributors, <a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>, Imagery © <a href="http://cloudmade.com">CloudMade</a>',
attribution: 'Map data &copy; <a href="http://openstreetmap.org">OpenStreetMap</a> contributors, <a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>, Imagery &copy; <a href="http://cloudmade.com">CloudMade</a>',
maxZoom: 18
}).addTo(map);
@ -28,51 +48,68 @@
var prmstr = window.location.search.substr(1);
var prmarr = prmstr.split ("&");
var params = {};
for ( var i = 0; i < prmarr.length; i++) {
var tmparr = prmarr[i].split("=");
params[tmparr[0]] = tmparr[1];
}
// decode query param
var query = decodeURIComponent(params["q"]).replace(/\+/g, ' ')
console.log(query)
// set search textbox to query
if(query && query.length > 0) {
document.getElementById("q").value = query
}
// AJAX request for geolocation of query
xmlhttp=new XMLHttpRequest();
xmlhttp.open("GET","http://nominatim.openstreetmap.org/search/"+encodeURIComponent(query)+"?format=json",true);
xmlhttp.send();
xmlhttp.onreadystatechange=function() {
if (xmlhttp.readyState==4 && xmlhttp.status==200) {
console.log(xmlhttp);
// Decode response as JSON and
response = JSON.parse(xmlhttp.responseText);
console.log(response);
result = response[0];
console.log(result);
//map.setView([result.lat, result.lon], 13);
// var southWest = new L.LatLng(40.712, -74.227),
// northEast = new L.LatLng(40.774, -74.125),
// bounds = new L.LatLngBounds(southWest, northEast);
// All Leaflet methods that accept LatLngBounds objects also accept them in a simple Array form (unless noted otherwise), so the bounds example above can be passed like this:
if(response.length > 0){
// Display all results in sidebar
response.forEach(function(result,index){
appendToResults(index,result.display_name);
});
map.fitBounds([
[result.boundingbox[0], result.boundingbox[2]],
[result.boundingbox[1], result.boundingbox[3]]
]);
// map.fitBounds([
// result.polygonpoints[0],
// result.polygonpoints[1]
// ]);
//fitBounds( <LatLngBounds> bounds, <fitBounds options> options? )
// Fit map to bounds of first result
showItem(0);
}
else {
appendToResults("No Results");
}
}
}
function appendToResults(index,name){
var item = document.createElement("li");
item.innerHTML = "<span onclick=\"showItem('"+index+"');\">"+name+'</span>';
item.id = "result_"+index;
document.getElementById("results").appendChild(item);
}
function showItem(index){
// Change this item to be the active one
var results = document.getElementsByClassName("active_result")
for(var i=0; i < results.length; i++){
console.log(i);
results[i].className = "";
}
document.getElementById("result_"+index).className = "active_result";
// Change map to show this item
map.fitBounds([
[response[index].boundingbox[0], response[index].boundingbox[2]],
[response[index].boundingbox[1], response[index].boundingbox[3]]
]);
}
</script>
</body>