private void AppcastWasDownloaded(Object sender, DownloadStringCompletedEventArgs e)
{
if (e.Error != null)
{
ReportError(e.Error);
}
else
{
XmlNodeList xmlItems = null;
try {
XmlDocument doc = new XmlDocument();
doc.LoadXml(e.Result);
xmlItems = doc.SelectNodes("/rss/channel/item");
} catch (Exception ex) {
ReportError(ex);
return;
}
List <SUAppcastItem> appcastItems = new List <SUAppcastItem>();
foreach (XmlNode node in xmlItems)
{
Dictionary <string, ArrayList> nodesDict = new Dictionary <string, ArrayList>();
Dictionary <string, Object> itemDescription = new Dictionary <string, object>();
// Create a dictionary of nodes for each name present,
// so we can parse by xml:lang later.
foreach (XmlNode childNode in node.ChildNodes)
{
string nodeName = childNode.Name;
ArrayList nodesForName = null;
if (!nodesDict.TryGetValue(nodeName, out nodesForName))
{
nodesForName = new ArrayList();
nodesDict.Add(nodeName, nodesForName);
}
nodesForName.Add(childNode);
}
foreach (string itemKey in nodesDict.Keys)
{
ArrayList nodes = null;
nodesDict.TryGetValue(itemKey, out nodes);
XmlNode bestNodeForKey = BestNodeInNodes(nodes);
if (bestNodeForKey.Name.Equals("enclosure"))
{
// enclosure is flattened as a separate dictionary for some reason
Dictionary <string, string> enclosureDict = new Dictionary <string, string>();
foreach (XmlAttribute attribute in bestNodeForKey.Attributes)
{
enclosureDict.SetValueForKey(attribute.InnerText, attribute.Name);
}
itemDescription.SetValueForKey(enclosureDict, "enclosure");
}
else if (bestNodeForKey.Name.Equals("pubDate"))
{
try {
DateTime date = DateTime.Parse(bestNodeForKey.InnerText);
itemDescription.SetValueForKey(date, bestNodeForKey.Name);
} catch {
// Nothing
}
}
else
{
itemDescription.SetValueForKey(bestNodeForKey.InnerText.Trim(), bestNodeForKey.Name);
}
}
try {
SUAppcastItem item = new SUAppcastItem(itemDescription);
appcastItems.Add(item);
} catch {
}
}
appcastItems.Sort();
appcastItems.Reverse(); // new to old
Items = appcastItems;
if (Delegate != null)
{
Delegate.AppcastDidFinishLoading(this);
}
}
}
