MJ> Ajax uses XmlHttpRequest (in most cases), so it looks like your editor
MJ> /is/ ajax based. :)
I started this project in 2002 and I'm not sure AJAX already came
up at that time.
I just use same core components as AJAX does:
if (is.ie) {
xmlHttp = new ActiveXObject("Msxml2.XMLHTTP.3.0");
}
else {
xmlHttp = new XMLHttpRequest();
}
....
function sendActionRequest(urlParams, baseApp){
if(!baseApp)baseApp=runApp;
if (urlParams=='') return;
var rndm = Math.random()*999999999;
var link=baseApp+"?"+urlParams+"&ds="+datasource+'&random='+rndm;
xmlHttp.open("GET", link, false);
xmlHttp.setRequestHeader('Content-Type',
'application/x-www-form-urlencoded; charset=utf-8');
xmlHttp.send(null);
}
function getXmlFromResponse(){
var xmlBody=truncatePrefix(xmlHttp.responseText);
if(is.ie){
var tmpXML = new ActiveXObject("Msxml2.DOMDocument.3.0");
tmpXML.loadXML(xmlBody);
if(tmpXML.xml=='')
alert('Invalid xml from the server:\n'+xmlBody);
}
else{
var tmpXML = document.implementation.createDocument('','',null);
var parser = new DOMParser();
tmpXML = parser.parseFromString(xmlBody, "text/xml");
if(!tmpXML.documentElement)
alert('Invalid xml from the server:\n'+xmlBody);
}
return tmpXML;
}
That's all.
I also use my own JS code for XPath queries, not Sarissa:
function selNodes(doc, xpath){
if(is.ie){
return doc.selectNodes(xpath);
}
else{
var nodeRoot=doc;
if(doc.ownerDocument) nodeRoot=doc.ownerDocument;
var result = nodeRoot.evaluate(xpath, doc,
null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
var found = new Array();
var res;
for (var i = 0; i < result.snapshotLength; i++) {
found.push(result.snapshotItem(i));
}
return found;
}
}
function selSingleNode(doc, xpath){
if(is.ie){
return doc.selectSingleNode(xpath);
}
else{
var nodeRoot=doc;
if(doc.ownerDocument) nodeRoot=doc.ownerDocument;
var result = nodeRoot.evaluate(xpath, doc,
null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
if(result.snapshotLength==2){
var xmlSerializer = new XMLSerializer();
var markup = xmlSerializer.serializeToString(doc);
}
if(result.snapshotLength>0) return result.snapshotItem(0)
else return null;
}
}
--
Sergey Croitor
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