// loads the feed
public Feed(RssFeed feed)
{
this.name = feed.Channel.Title;
this.url = feed.URL;
this.etag = feed.ETag;
this.last_modified = feed.LastModified;
for (int i=feed.Channel.Items.Count-1; i>=0; i--)
items.Add (new Item (feed.Channel.Items [i]));
UpdateStatus ();
}
// load the feed
void loadFeed()
{
feed = null;
try {
feed = new RssFeed (custom_url.Text, null, null);
if (feed.Channel != null)
{
loading = false;
Application.Invoke (delegate{ this.Destroy (); });
retVal = 1;
return;
}
}
catch (Exception e)
{
parent.Fuse.ThrowWarning ("News.loadFeed:: Could not load the feed - " + custom_url.Text, e.ToString ());
}
failRespond ();
}
// return a value indicating that the loading failed
void failRespond()
{
feed = null;
loading = false;
Application.Invoke (delegate{ this.Destroy (); });
retVal = 2;
}
// adds the new feed items
void addNewItems(Feed feed, RssFeed rss_feed)
{
// only add in new items. backwards
for (int i=rss_feed.Channel.Items.Count-1; i>=0; i--)
{
RssItem rss_item = rss_feed.Channel.Items [i];
bool exists = false;
foreach (Item item in feed.Items)
if (item.Title == rss_item.Title && item.Url == rss_item.Link && item.GUID == rss_item.Guid && item.PubDate == rss_item.PubDate)
exists = true;
// the list doesnt have the news item
if (!exists)
{
Item new_item = new Item (rss_item);
new_item.IsNew = true;
// add in the new item
Application.Invoke (delegate {
feed.Items.Add (new_item);
parent.DataManager.AddItem (feed, new_item);
});
}
}
// update the feed
Application.Invoke (delegate {
feed.UpdateStatus ();
parent.DataManager.UpdateFeed (feed);
});
}
/// <summary>
/// Refreshes the specified news feed.
/// </summary>
public void Refresh(Feed feed)
{
feed.Updating = true;
Application.Invoke (delegate{ news_tree.QueueDraw (); });
//clear new item count
foreach (Item item in feed.Items)
item.IsNew = false;
//update feed
try
{
RssFeed rss_feed = new RssFeed (feed.Url, feed.ETag, feed.LastModified);
if (rss_feed.Channel != null)
addNewItems (feed, rss_feed);
}
catch (Exception e)
{
parent.Fuse.ThrowWarning ("News.Refresh:: Could not update the feed - " + feed.Url, e.ToString ());
}
feed.Updating = false;
//update view
Application.Invoke (delegate{
news_tree.QueueDraw ();
TreeIter iter;
if (news_tree.Selection.GetSelected (out iter))
{
Feed node = (Feed) news_store.GetValue (iter, 0);
if (node.Url == feed.Url)
news_viewer.Refresh ();
}
});
}
/// <summary>
/// Adds a feed into the news store.
/// </summary>
public void AddFeed(RssFeed rss_feed)
{
Feed feed = new Feed (rss_feed);
if (news_store.IterNChildren () > 0)
news_store.AppendValues (new Feed ("ROW_SEP", "", "", "", false));
news_store.AppendValues (feed);
parent.DataManager.AddFeed (feed);
}
