// which actually calls this
private void Broadcast_Join(object sender, NewBroadcastEventArgs e)
{
try
{
addClient(e.message.Sender);
RemoteMessage msg = new RemoteMessage(nameTextBox.Text);
msg.Event = Event.Discovery;
broadcast.Send(msg);
messages.Add(new InternalMessage($"{e.message.Sender.Name} joined"));
}
catch (Exception ex) // Just for debugging
{
MessageBox.Show(ex.Message);
throw; // for the debugger
}
}
//This is called when a message is received (before any events are called)
private void OnBroadcastMessage(IAsyncResult res)
{
byte[] received = client.EndReceive(res, ref remoteEP);
// Begin receiving A$AP
client.BeginReceive(new AsyncCallback(OnBroadcastMessage), null);
//Process the message
if (!remoteEP.Address.Equals(localEP.Address)) // message is from someone else
{
NewBroadcastEventArgs args = new NewBroadcastEventArgs();
args.message = new RemoteMessage(received);
args.message.Sender = new RemoteClient(localEP, remoteEP);
switch (args.message.Event)
{
case Event.Join:
args.message.Sender.Name = args.message.Words;
OnJoin(args);
break;
case Event.Discovery:
args.message.Sender.Name = args.message.Words;
OnDiscovery(args);
break;
case Event.Leave:
OnLeave(args);
break;
case Event.Message:
OnMessage(args);
break;
}
}
}
// which actually calls this
private void Broadcast_Message(object sender, NewBroadcastEventArgs e)
{
messages.Add(e.message);
//messages.Add(new InternalMessage($"{e.message.Sender.Name} joined"));
}
// called when new broadcast arrives
public void OnMessage(object sender, NewBroadcastEventArgs e) =>
Dispatcher.BeginInvoke(new Action(() =>
Broadcast_Message(sender, e)
));
// called upon a client leaving
private void Broadcast_Leave(object sender, NewBroadcastEventArgs e) =>
Dispatcher.BeginInvoke(new Action(() =>
clients.Remove(e.message.Sender)
));
// response to my join message (other people exist)
public void OnBroadcastDiscovery(object sender, NewBroadcastEventArgs e) =>
Dispatcher.BeginInvoke(new Action(() =>
addClient(e.message.Sender)
));
protected virtual void OnMessage(NewBroadcastEventArgs e)
{
EventHandler <NewBroadcastEventArgs> handler = Message;
handler?.Invoke(this, e);
}
protected virtual void OnDiscovery(NewBroadcastEventArgs e)
{
EventHandler <NewBroadcastEventArgs> handler = Discovery;
handler?.Invoke(this, e);
}
// EventThing
protected virtual void OnJoin(NewBroadcastEventArgs e)
{
EventHandler <NewBroadcastEventArgs> handler = Join;
handler?.Invoke(this, e);
}
