/// <summary>
/// Calls the StartServer method with Task.Run to not
/// block the UI thread.
/// </summary>
private void ButtonStart_Click(object sender, EventArgs e)
{
this.serverUri = ServerUriBuilder.PrepareServerUri(this.serverUriTemplate, textBox1.Text);
WriteToConsole("Starting server...");
ButtonStart.Enabled = false;
try
{
Task.Run(() => server.StartServer(this.serverUri));
}
catch (TargetInvocationException)
{
WriteToConsole("Server failed to start. A server is already running on " + this.serverUri);
//Re-enable button to let user try to start server again
this.Invoke((Action)(() => ButtonStart.Enabled = true));
return;
}
this.Invoke((Action)(() => ButtonStop.Enabled = true));
WriteToConsole("Server started at " + this.serverUri);
}
/// <summary>
/// Creates and connects the hub connection and hub proxy. This method
/// is called asynchronously from SignInButton_Click.
/// </summary>
private async void ConnectAsync()
{
string ServerURI = String.Empty;
try
{
ServerURI = ServerUriBuilder.GetServerUriForClient(this.textBox1.Text);
}
catch (Exception ex)
{
MessageBox.Show($"Podany adres jest nieprawidłowy. Wyjątek: {ex.Message}");
return;
}
Connection = new HubConnection(ServerURI);
Connection.Closed += Connection_Closed;
HubProxy = Connection.CreateHubProxy("MyHub");
//Handle incoming event from server: use Invoke to write to console from SignalR's thread
HubProxy.On <string, string>("AddMessage", (name, message) =>
this.Invoke((Action)(() =>
RichTextBoxConsole.AppendText(String.Format("{0} {1}: {2}" + Environment.NewLine, name, DateTime.Now, message))
))
);
try
{
await Connection.Start();
}
catch (HttpRequestException)
{
StatusText.Text = "Unable to connect to server: Start server before connecting clients.";
//No connection: Don't enable Send button or show chat UI
return;
}
//Activate UI
SignInPanel.Visible = false;
ChatPanel.Visible = true;
ButtonSend.Enabled = true;
TextBoxMessage.Focus();
RichTextBoxConsole.AppendText("Connected to server at " + ServerURI + Environment.NewLine);
}
public void ShouldBuildCorrectServerUri()
{
var serverUri = ServerUriBuilder.PrepareServerUri("http://test:{0}", "2020").ToString();
Assert.AreEqual("http://test:2020", serverUri);
}
public void ShouldReturnDefaultUriWhenPortIsntGiven()
{
var serverUri = ServerUriBuilder.PrepareServerUri("http://test:{0}", "").ToString();
Assert.AreEqual("http://test:8080", serverUri);
}
