public void OwnerRemoved (User user)
{
if (RemoveUser (user)) {
AddUser (user);
Update ();
}
}
bool RemoveUser (User user)
{
return RemoveUser (user.Id);
}
void AddUser (User user)
{
var isOwner = Channel.Owners.Contains (user.Id);
TreeItem item = isOwner ? owners : user.Active ? online : away;
item.Children.Add (CreateItem (user));
}
public void UserJoined (User user)
{
RemoveUser (user);
AddUser (user);
Update ();
}
TreeItem CreateItem (User user)
{
return new TreeItem { Text = user.Name, Key = user.Id, Tag = user };
}
public void UserLeft (User user)
{
RemoveUser (user);
Update ();
}
public void UsernameChanged (string oldUserId, User user)
{
if (RemoveUser (oldUserId)) {
AddUser (user);
}
Update ();
}
TreeItem CreateItem(User user)
{
return new TreeItem { Text = user.Name, Key = user.Id, Tag = user, Image = Channel.Server.GetUserIcon(user) };
}
public abstract void StartChat (User user);
ITreeItem FindUserItem(User user)
{
var item = owners.Children.FirstOrDefault(r => r.Key == user.Id);
if (item != null)
return item;
item = online.Children.FirstOrDefault(r => r.Key == user.Id);
if (item != null)
return item;
item = away.Children.FirstOrDefault(r => r.Key == user.Id);
if (item != null)
return item;
return null;
}
public void UserIconChanged(User user, Image image)
{
var item = FindUserItem(user) as TreeItem;
if (item != null)
{
item.Image = image;
//tree.RefreshData ();
tree.RefreshItem(item);
}
}
public UsernameChangedEventArgs(string oldName, User user, DateTimeOffset when)
: base (user, when)
{
this.OldUsername = oldName;
}
public UserEventArgs(User user, DateTimeOffset when)
{
this.User = user;
this.When = when;
}
public Bitmap GetUserIcon(User user)
{
if (iconCache.Contains(user.Id))
{
var icon = iconCache[user.Id] as Bitmap;
if (icon != null)
return icon;
}
user.GetIcon().ThenOnUI(image => {
var policy = new CacheItemPolicy {
SlidingExpiration = TimeSpan.FromMinutes (60)
};
iconCache.Set(user.Id, image, policy);
foreach (var channel in this.Channels)
{
if (channel.Users.Any(r => r.Id == user.Id))
{
channel.TriggerUserIconChanged(new UserImageEventArgs(user, DateTimeOffset.Now, image));
}
}
});
return User.DefaultUserIcon;
}
public UserImageEventArgs(User user, DateTimeOffset when, Image image)
: base (user, when)
{
this.Image = image;
}
public UserChannelEventArgs(User user, Channel channel)
{
this.User = user;
this.Channel = channel;
}
