private WebFeed(IFeed feed)
{
items = new List<Item>();
title = feed.Title;
link = feed.Link;
description = feed.Description;
path = feed.Path;
lastWriteTime = feed.LastWriteTime;
foreach (IFeedItem item in (IFeedsEnum)feed.Items)
{
Item rssItem = new Item(item);
// only add items that have enclosures
if (rssItem.Enclosure != null)
items.Add(rssItem);
}
}
/// <summary>
/// Private constructor to be used with factory pattern.
/// </summary>
/// <exception cref="System.Xml.XmlException">Occurs when the XML is not well-formed.</exception>
/// <param name="xmlNode">An XML block containing the RSSFeed content.</param>
private WebFeed(XmlNode xmlNode)
{
XmlNode channelNode = xmlNode.SelectSingleNode("rss/channel");
items = new List<Item>();
title = channelNode.SelectSingleNode("title").InnerText;
link = channelNode.SelectSingleNode("link").InnerText;
description = channelNode.SelectSingleNode("description").InnerText;
XmlNodeList itemNodes = channelNode.SelectNodes("item");
foreach (XmlNode itemNode in itemNodes)
{
Item rssItem = new Item(itemNode);
// only add items that have enclosures
if (rssItem.Enclosure != null)
items.Add(rssItem);
}
}
public void Load () {
DateTime loadstart = DateTime.Now;
List<WebFeed> newRssFeeds = new List<WebFeed>();
try {
IFeedsManager fs = new FeedsManagerClass();
IFeedFolder folder = (IFeedFolder)fs.GetFolder(Properties.Settings.Default.ImagePathOverride);
foreach (IFeed feed in FeedUtility.CommonFeedList(folder)) {
System.Diagnostics.Debug.Print("Found feed {0} with {1} items.",
feed.Name, ((IFeedsEnum)feed.Items).Count);
try {
WebFeed rssFeed = WebFeed.FromApi(feed);
// Only add this feed if it contains items
if (rssFeed != null) {
System.Diagnostics.Debug.Print("Feed has {0} items with enclosures.", rssFeed.Items.Count);
if (rssFeed.Items.Count > 0)
newRssFeeds.Add(rssFeed);
} else
System.Diagnostics.Debug.Print("Feed is null.");
} catch (System.Runtime.InteropServices.COMException ex) {
System.Diagnostics.Debug.Print("Failed to get RSS feed '{0}' from API; skipping feed. Error: {1} ", feed.Name, ex.ToString());
// Ignore exception, meaning ignore this feed and continue with next feed.
}
}
} finally {
// Collect garbage so that all the COM objects are released which
// closes the backing structured storage files.
GC.Collect();
}
if (newRssFeeds.Count == 0) {
// There were no suitable feeds, hence get default feeds from resources.
System.Diagnostics.Debug.Print("There were no suitable feeds, hence get default feeds from resources.");
WebFeed rssFeed = WebFeed.FromText(Properties.Resource.DefaultRSSText);
newRssFeeds.Add(rssFeed);
}
this.webFeeds = newRssFeeds;
// reset current indexes
currentFeedIndex = -1;
currentItemIndex = -1;
MoveNext();
lastRefresh = loadstart;
}
