// this is a gadget example on how to filter on persons who have the app installed
function loadData() {
var params = {};
params[opensocial.DataRequest.PeopleRequestFields.FILTER] = opensocial.DataRequest.FilterType.HAS_APP;
var req = opensocial.newDataRequest();
req.add(req.newFetchPersonRequest('VIEWER', params), 'viewer');
// You can also check all of your friends with VIEWER_FRIENDS
//req.add(req.newFetchPersonRequest('VIEWER_FRIENDS', params), 'viewer');
req.send(onLoadData);
}
function onLoadData(data) {
var viewer = data.get('viewer').getData();
if(viewer != null) {
var result = "You (the viewer) have the app installed";
} else {
var result = "You (the viewer) do not have the app installed";
}
document.getElementById('message').innerHTML = result;
gadgets.window.adjustHeight();
}
function viewerinfo() {
document.getElementById('viewernotvisible').style.display = "none";
function getViewer(responseItem) {
if(responseItem.hadError()) {
var sErrorcode = responseItem.getErrorCode();
if(sErrorcode == 'forbidden') {
document.getElementById('message').innerHTML = "You are not logged in, please log in first.";
} else if(sErrorcode == 'unauthorized') {
document.getElementById('message').innerHTML = "This application can't see your information because you will have to give permission to share your information. Please click the button below.";
}
}
if (opensocial.hasPermission(opensocial.Permission.VIEWER)) {
loadData();
}
}
opensocial.requestPermission([opensocial.Permission.VIEWER], 'This reason sentence is not used at the moment', getViewer);
}
function init() {
if (opensocial.hasPermission(opensocial.Permission.VIEWER)) {
loadData();
} else {
document.getElementById('viewernotvisible').style.display = "block";
}
}
gadgets.util.registerOnLoadHandler(init);
]]>