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typeahead event
.on("typeahead:selected", function (obj, datum) {
// what happens when a user selects\clicks a suggestion
// we get the datum that contains the properties we defined when we setup the engine via the filter function
map.graphics.clear();
switch(datum.source) {
case "esri-geocoder":
var url = config.arcgisGeocodingBaseUrl + "find?" +
"magicKey=" + datum.magicKey + "&text=" + datum.name +
"&outFields=Addr_type&f=json";
// https://developers.arcgis.com/rest/geocode/api-reference/geocoding-find.htm
// make the call to the geocode service to get the result
$.getJSON(url, function(result) {
try {
if(result.locations.length > 0) {
var extent = result.locations[0].extent;
map.setExtent(new Extent(extent), true);
}
else {
$("#searchBox").val("Could not go to" + datum.name);
}
}
catch(e) {
//console.log(e);
}
});
break;
default:
// since our datums and geometry types are the same we can capture everything that isn't a geocode result
// and query the correct layer
// if you have various data sources they may need to be handled individually here
var layerIndex = null;
switch(datum.source) {
case "camp":
layerIndex = config.featureLayerIndexes.camp;
break;
case "trail":
layerIndex = config.featureLayerIndexes.trail;
break;
case "ski":
layerIndex = config.featureLayerIndexes.ski;
break;
}
var url = config.featureServerUrl + layerIndex + "/query?" +
"objectIds=" + datum.objectId +
"&outFields=*&returnGeometry=true&outSR=4326&f=json";
$.getJSON(url, function(result) {
// create a point from the result (and give it a little scooch north) and zoom the map to it
var pt = new Point(result.features[0].geometry.x, result.features[0].geometry.y + .001);
map.centerAndZoom(pt, 14);
// put the name in the graphics layer of the map
var text = new esri.symbol.TextSymbol(datum.name)
.setColor(new esri.Color("#064780"))
.setAlign(esri.symbol.Font.ALIGN_START)
.setFont(new esri.symbol.Font("24px",esri.symbol.Font.STYLE_NORMAL, esri.symbol.Font.VARIANT_NORMAL,esri.symbol.Font.WEIGHT_BOLD,"Arial"));
var graphic = new esri.Graphic(pt, text);
map.graphics.add(graphic);
});
break;
}
});
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