Asynchronous programming newbie question. I need to run an identify task on a dynamic map service layer. After I get the results of the identify, I need to do another operation before the results are sent to the popup. I'll use that operation to format the infoTemplate.
How do I prevent the popup from displaying until I format it? It seems that as soon as the result comes back, the dojo will display the popup with the returned records. I think I need to chain the deferreds or create a deferred list, but I can't grok how it works.
function executeIdentifyTask(evt) {
identifyParams.geometry = evt.mapPoint;
identifyParams.mapExtent = map.extent;
var deferred = identifyTask.execute(identifyParams);
deferred.addCallback(function(response) {
// response is an array of identify result objects
// Let's return an array of features.
return dojo.map(response, function(result) {
var feature = result.feature;
if(result.layerName === 'Tax Parcels'){
if (blah.length>0) {
FORMAT CONTENT HERE
var template = new esri.InfoTemplate("", "${Postal Address} <br/> Owner of record: ${First Owner Name}");
feature.setInfoTemplate(template);
}
else
{
FORMAT CONTENT DIFFERENT WAY HERE
var template = new esri.InfoTemplate("", "${Different Stuff} <br/> Owner of record: ${Blah}");
feature.setInfoTemplate(template);
}
});
console.log(feature.attributes.PARCELID);
}
else if (result.layerName === 'Building Footprints'){
var template = new esri.InfoTemplate("", "Parcel ID: ${PARCELID}");
feature.setInfoTemplate(template);
}
return feature;
});
});
// InfoWindow expects an array of features from each deferred
// object that you pass. If the response from the task execution
// above is not an array of features, then you need to add a callback
// like the one above to post-process the response and return an
// array of features.
map.infoWindow.setFeatures([ deferred ]);
map.infoWindow.show(evt.mapPoint);
}
