// AddMessage adds a new message to the desired datasource. It removes the first placeholder message if present,
// and it adds the message to the list in the datasource. It then reloads the tableview and it scrolls it to
// the last message.
public static void AddMessage(Message message, ChatListDataSource dataSource, NSTableView chatList)
{
if (dataSource.Messages.Count > 0 &&
dataSource.Messages[0].content.Contains("No messages yet"))
{
dataSource.Messages.RemoveAt(0);
}
dataSource.Messages.Add(message);
chatList.ReloadData();
chatList.ScrollRowToVisible(dataSource.Messages.Count - 1);
}
// UpdateBufferSize updates the buffer size and adds an info message to the chatlist.
public static int UpdateBufferSize(string enteredBufferSizeString, string name,
ChatListDataSource chatListDataSource, NSTableView chatList)
{
try
{
var enteredBufferSize = Validation.ValidateBufferSize(enteredBufferSizeString);
var message = new Message(MessageType.Info, name,
$"The buffer size was changed to {enteredBufferSize}.", DateTime.Now);
UI.AddMessage(message, chatListDataSource, chatList);
return(enteredBufferSize);
}
catch (InvalidInputException e)
{
UI.ShowAlert(e.Title,
e.Message);
return(0);
}
}
public ChatListDelegate(ChatListDataSource dataSource)
{
_dataSource = dataSource;
}
