var arrFeedRequests = new Array();
var arrFeedData = new Array();
var strRssName;
var intRssNumberOfItems;
var blnRssShowTitle;
var blnRssShowLink;
var blnRssShowDescription;
var blnRssShowDate;
var blnRssShowSource;
function fnInsertRSSResource()
{
var frm = document.resourceForm;
var strURI = frm.strURI.value;
var strName = frm.strName.value;
var guiID = '';
var strImage = '/lantern/resourcetypes/rssreader/images/rss_placeholder.jpg'
var strResourceType = frm.strResourceType.value;
var objPropertyList = document.getElementById('resourceproperties');
var strInsertHTML = '
';
opener.editArea.fnInsertHTML(strInsertHTML);
self.close();
}
function fnRenderRSSResource( name, numberofitems, showTitle, showLink, showDescription, showDate, showSource, pFeeds )
{
strRssName = name;
intRssNumberOfItems = numberofitems;
blnRssShowTitle= showTitle;
blnRssShowLink = showLink;
blnRssShowDescription = showDescription;
blnRssShowDate = showDate;
blnRssShowSource = showSource;
//debugger;
var feeds = pFeeds.split(',');
for( var feedPtr = 0; feedPtr < feeds.length; ++feedPtr )
{
var newFeed = new Array();
newFeed['source'] = feeds[feedPtr];
newFeed['request'] = fnGetXMLHttpRequest();
newFeed['request'].open( 'GET', '/lantern/resourcetypes/RSSReader/asp/rss2xml.asp?url=' + feeds[feedPtr], true );
newFeed['request'].onreadystatechange = function() { fnFeedStateChange(); }
arrFeedRequests[arrFeedRequests.length] = newFeed;
newFeed['request'].send(null);
}
}
function fnFeedStateChange( req )
{
//alert('arrFeedRequests.length='+arrFeedRequests.length);
for( feedPtr = 0; feedPtr < arrFeedRequests.length; ++feedPtr ) {
if( arrFeedRequests[feedPtr] && arrFeedRequests[feedPtr]!=null && arrFeedRequests[feedPtr]['request'].readyState == 4 && arrFeedRequests[feedPtr]['request'].status == 200 ) {
fnFeedDataAppend( arrFeedRequests[feedPtr] );
arrFeedRequests[feedPtr] = null;
}
}
}
function fnGetXMLHttpRequest()
{
if (window.XMLHttpRequest) {
try {
req = new XMLHttpRequest();
} catch (e) {
req = false;
}
} else if (window.ActiveXObject) {
try {
req = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try {
req = new ActiveXObject("Microsoft.XMLHTTP");
} catch (e) {
req = false;
}
}
}
return req;
}
function fnFeedDataAppend( requestObject )
{
var source = requestObject['source'];
var items = new Array();
var item;
items = requestObject['request'].responseXML.getElementsByTagName('item');
//if you remove the var items = new Array(); then this will PARTIALLY work in IE - that is, the referencing by index will start working; a problem remains though.
//the object returned by repsonseXML is appears to be read only (http://msdn.microsoft.com/en-us/library/ms757066(VS.85).aspx)
//to work around this, you could create an Msxml2.DomDocument, and using readXml to read in the XML from responseXml.xml. This way it shouldn't be read only.
//var items = requestObject['request'].responseXML.getElementsByTagName('item');
for( var itemPtr = 0; itemPtr < items.length; ++itemPtr ) {
// IE 6 is choking here because it cannot grab any child for some unknown reason
item = items[itemPtr];
item.setAttribute('source', source);
arrFeedData[arrFeedData.length] = item;
}
arrFeedData.sort( fnFeedSorter );
fnPopulateRSSContent();
}
function fnPopulateRSSContent() {
var html = '';
var html2 = '';
var x = navigator;
var iCount=0;
var intItemCount = arrFeedData.length;
for( var itemPtr = 0; (itemPtr < intItemCount && itemPtr < intRssNumberOfItems); ++itemPtr )
{
html += ''
html += '
'
}
document.getElementById('rssreaderContent').innerHTML = html;
}
function fnFeedSorter( a, b ) {
var dateA;
var dateB;
var x = navigator;
// Sadly we need to determine Broswer type (Look for IE or Netscape)
if ( x.appName=='Netscape')
{
dateA = Date.parse( a.getElementsByTagName('pubDate').item(0).textContent );
dateB = Date.parse( b.getElementsByTagName('pubDate').item(0).textContent );
if( dateA == dateB ) return 0;
return( dateA > dateB ) ? -1 : 1;
}
else
{
dateA = Date.parse( a.getElementsByTagName('pubDate').item(0).text );
dateB = Date.parse( b.getElementsByTagName('pubDate').item(0).text );
if( dateA == dateB ) return 0;
return( dateA > dateB ) ? -1 : 1;
}
}