public void UpdateGuiWithNewMessage(string message)
{
//switch thread to GUI thread to write to GUI // Prof: sorgt dafür, dass der Thread in der GUI ausgeführt wird
//damit es gleichzeitig abläuft
//(Dispatcher extra erstellen => Render (Hintergrund) und GUI Threads => aktualisieren GUI)
App.Current.Dispatcher.Invoke(() =>
{
string name = message.Split(':')[0];
if (!ConnectedClients.Contains(name))
{//not in list => add it
ConnectedClients.Add(name);
}
if (message.Contains("@quit"))
{
server.DisconnectOneClient(name);
// Extra:
ConnectedClients.Remove(name); // Client auch aus connectedClients Liste löschen
}
//neue Nachricht zu Nachrichten-Collection hinzufügen
Messages.Add(message);
// GUI informieren, dass Nachrichtenanzahl gestiegen ist
RaisePropertyChanged("MessagesCnt");
});
}
private void OnClientDisconnected(SocketClientDisconnectedArgs args)
{
Console.WriteLine($"Client Disconnected, clientRemoteEndPoint : {args.DisconnectedSocketRemoteEndPoint}");
lock (ConnectedClients)
{
if (ConnectedClients.Contains(args.DisconnectedClient))
{
ConnectedClients.Remove(args.DisconnectedClient);
}
}
ClientDisconnected?.Invoke(args);
}
/// <summary>
/// try to add a new client's mac address.
/// </summary>
/// <param name="clientAddress">The new client's address.</param>
/// <returns><c>true</c> if the client was added successfully, <c>false</c> if it was already registered.</returns>
public bool TryAddClient(string clientAddress)
{
if (ConnectedClients.Contains(clientAddress))
{
return(false);
}
lock (ConnectedClients)
{
ConnectedClients.Add(clientAddress);
}
// Initialize the pending messages for this client
if (!PendingMessages.ContainsKey(clientAddress))
{
lock (PendingMessages)
{
PendingMessages.Add(clientAddress, new Stack <ChatMessage>());
}
}
return(true);
}