internal void Replace(SessionAnnouncement oldAnnouncement, SessionAnnouncement newAnnouncement)
{
Session key = oldAnnouncement.Session;
int index = _sessions.IndexOfKey(key);
_sessions[key] = newAnnouncement;
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(IndexerName));
}
if (CollectionChanged != null)
{
var eventArgs = new SessionChangedEventArgs(SessionChange.Update, newAnnouncement, oldAnnouncement, index);
CollectionChanged(this, eventArgs);
}
}
internal void Remove(SessionAnnouncement announcement)
{
int index = _sessions.IndexOfKey(announcement.Session);
_sessions.RemoveAt(index);
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(CountString));
PropertyChanged(this, new PropertyChangedEventArgs(IndexerName));
}
if (CollectionChanged != null)
{
var eventArgs = new SessionChangedEventArgs(SessionChange.Delete, announcement, index);
CollectionChanged(this, eventArgs);
}
}
internal void Add(SessionAnnouncement announcement)
{
Session session = announcement.Session;
_sessions.Add(session, announcement);
int index = _sessions.IndexOfKey(announcement.Session);
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(CountString));
PropertyChanged(this, new PropertyChangedEventArgs(IndexerName));
}
if (CollectionChanged != null)
{
var eventArgs = new SessionChangedEventArgs(SessionChange.New, announcement, index);
CollectionChanged(this, eventArgs);
}
}
