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function NSResolver(prefix) {
if(prefix == 'xhtml') {
return 'http://www.w3.org/1999/xhtml';
} else {
return null;
}
}
function DSXMLParser(req, handler, attr) {
this.req = req;
this.data_handler = handler;
this.data_attr = attr;
this.ready = function() {
try {
if (this.req.readyState == 4) {
if (this.req.status == 200) {
this.data_handler(this.req.responseXML, this.data_attr, 0);
} else {
this.data_handler(null, this.data_attr, translate("XML: HTTP Error %u", this.req.status));
}
}
} catch (e) {
adeiReportException(e, translate("XML: error catched while loading XML"));
}
}
return this;
}
function getXML(url) {
if (window.XMLHttpRequest) {
req = new XMLHttpRequest();
} else if (window.ActiveXObject) {
try {
req = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
req = new ActiveXObject("Microsoft.XMLHTTP");
}
}
try {
req.open("GET", url, false);
req.send( null );
return req.responseXML;
} catch (e) {
adeiReportException(e, translate('getXML(%s) request is failed', url));
}
}
function serverGetResult(url) {
var error = 0;
var xmldoc = getXML(url);
if (xmldoc) {
var values = xmldoc.getElementsByTagName("result");
if (values.length > 1) {
error = translate("serverGetResult(%s) returned multiple result nodes", url);
} else if (values.length > 0) {
return values[0].firstChild.data;
} else {
var errors = xmldoc.getElementsByTagName("error");
if (errors.length > 0) {
error = errors[0].firstChild.data;
} else {
error = translate("serverGetResult(%s) returned no result or error nodes", url);
}
}
} else {
error = translate("serverGetResult(%s) got no data from server", url);
}
if (error) adeiReportError(error);
}
function loadXML(url, handler, attr) {
var req;
if (window.XMLHttpRequest) {
req = new XMLHttpRequest();
} else if (window.ActiveXObject) {
try {
req = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
req = new ActiveXObject("Microsoft.XMLHTTP");
}
}
var parser = DSXMLParser(req, handler, attr);
try {
if (window.XMLHttpRequest) {
req.data_attr = attr;
req.data_handler = handler;
req.onreadystatechange = function() {
try {
if (req.readyState == 4) {
// Removing circullar dependencies
req.onreadystatechange = null;
if (req.status == 200) {
req.data_handler(req.responseXML, req.data_attr, 0);
} else {
req.data_handler(null, req.data_attr, translate("loadXML(%s) is failed: HTTP Error %u", url, req.status));
}
}
} catch (e) {
// alert(typeof e);
// for (i in e) alert(i + '=' + e[i]);
adeiReportException(e, translate('loadXML(%s) handler is failed', url));
}
}
} else if (window.ActiveXObject) {
req.onreadystatechange = parser.ready;
}
req.open("GET", url, true);
req.send( null );
} catch (e) {
adeiReportException(e, translate('loadXML(%s) request is failed', url));
}
}
function DSXMLQueue() {
this.queue = new Array();
this.busy = 0;
this.inside = 0;
this.completed = 0;
this.ProcessNext = dsXMLQueueProcessNext;
}
function DSXMLQueueElement(url, handler, attr) {
this.url = url;
this.handler = handler;
this.attr = attr;
}
function dsXMLQueueProcessNext() {
if (this.queue.length > 0) {
var nextelem = this.queue.shift();
this.inside = 1;
loadXML(nextelem.url, dsXMLQueueHandler, nextelem);
this.inside = 0;
if (this.completed) {
this.completed = 0;
return 1;
}
} else {
this.busy = 0;
}
return 0;
}
var ds_xml_queue = new DSXMLQueue;
function dsXMLQueueHandler(xmldoc, element, error) {
element.handler(xmldoc, element.attr, error);
if (ds_xml_queue.inside) {
ds_xml_queue.completed = 1;
} else {
while (ds_xml_queue.ProcessNext());
}
}
function queueXML(url, handler, attr) {
var element = new DSXMLQueueElement(url, handler, attr);
if (ds_xml_queue.busy) {
ds_xml_queue.queue.push(element);
} else {
ds_xml_queue.busy = 1;
loadXML(url, dsXMLQueueHandler, element);
}
}
function xsltHandler(xsltdoc, xattr) {
xattr.xslt_processor.importStylesheet(xsltdoc);
xattr.handler(xattr.xslt_processor, xattr.attr);
}
function loadXSLT(url, handler, attr) {
var xattr = new Object();
xattr.attr = attr;
xattr.handler = handler;
xattr.xslt_processor = new XSLTProcessor();
loadXML(url, xsltHandler, xattr);
}
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