var responseIdx = 0;
var eventNumber = 0;
var successfulLoad = false;
var eventDebug = false;
var qlessPageId = new Date().getTime();
var listener = {
'eventURL' : function() {
var rtn = '/qless/event/v1/employee?id=' + qlessPageId;
if (BrowserDetect.browser == 'Explorer') {
rtn += '&useScript=true';
}
return rtn;
},
'poll' : function() {
if (eventDebug) {
alert('LISTENING FOR EVENTS');
}
//console.log('LISTENING FOR EVENTS...');
var xhr = createXMLHttpRequest();
xhr.open('GET', listener.eventURL(), true);
xhr.onreadystatechange = function() {
if (typeof xhr == 'undefined') return;
if (xhr.readyState == 3) {
listener.interactive(xhr);
} else if (xhr.readyState == 4) {
listener.process(xhr);
}
};
xhr.send(null);
//console.log('CONNECTION ESTABLISHED');
},
'process' : function(transport) {
try {
if (transport != null) {
if (transport.status == 200) {
if (eventDebug) {
alert('RESTARTING...');
}
responseIdx = 0;
successfulLoad = true;
// console.log('PROCESS FINISHED. DOING NORMAL RELOAD');
setTimeout("listener.poll()", 2000);
} else {
//console.log('transport status is ' + transport.status);
listener.reload();
}
}
} catch (e) {
listener.reload();
}
},
'interactive' : function(transport) {
try {
var response = transport.responseText.substring(responseIdx);
responseIdx = transport.responseText.length;
listener.handleEvent(response);
successfulLoad = true;
} catch (e) {
if (BrowserDetect.browser != 'Explorer') {
throw e;
}
}
},
'handleEvent' : function(event) {
Lz.setCanvasAttribute('event' + eventNumber, event);
Lz.setCanvasAttribute('eventNumber', eventNumber);
eventNumber++;
},
'reload' : function() {
//console.log('RELOAD IN 10-20 s');
setTimeout("document.location.reload()", (Math.random() * 10000) + 10000);
}
};
function createXMLHttpRequest() {
try { return new ActiveXObject("Msxml2.XMLHTTP"); } catch(e) {}
try { return new ActiveXObject("Microsoft.XMLHTTP"); } catch(e) {}
try { return new XMLHttpRequest(); } catch(e) {}
return null;
}
function iePoll() {
transferDoc = new ActiveXObject("htmlfile");
transferDoc.open();
transferDoc.write(
"");
transferDoc.close();
var ifrDiv = transferDoc.createElement("div");
transferDoc.body.appendChild(ifrDiv);
ifrDiv.innerHTML = "";
transferDoc.parentWindow.p = function(event) {
listener.handleEvent(event);
};
transferDoc.parentWindow.reconnect = function() {
transferDoc = null;
if(typeof CollectGarbage == "function") CollectGarbage();
setTimeout( 'iePoll();', 100);
};
// See http://www.issociate.de/board/post/483905/htmlfile_ActiveX_very_abscure_problem_(not_the_usual_disconnect.html
setInterval(
function () {
var __x = ((transferDoc ) &&
(typeof transferDoc.parentWindow == "object" ))
}, 100);
}
window.onload = function() {
BrowserDetect.init();
if (BrowserDetect.browser != 'Explorer' && window.XMLHttpRequest) {
listener.poll();
} else if (BrowserDetect.browser == 'Explorer' && BrowserDetect.version >= 7) {
iePoll();
} else {
alert('Sorry, we don\'t yet support your browser. Please try Firefox.');
window.location = 'http://www.mozilla.com';
}
}