/// <summary>
/// on send button click Flight Window is created and subscribers defined
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnSend_Click(object sender, RoutedEventArgs e)
{
var flightNumber = txtFlightNumber.Text; //
FlightWindow flightWindowObj = new FlightWindow(flightNumber); // declare and create Flight Window object (publisher)
flightWindowObj.Show();
flightWindowObj.ChangesHandler += OnChangesHandler; // add subscriber
flightWindowObj.LandedHandler += OnChangesHandler; // add subscriber
flightWindowObj.LandedHandler += arrivalWindowObj.OnArrivalHandler; // add subscriber
}
/// <summary>
/// Click event for "Start new flight" button
/// </summary>
/// <param name="sender">the object sending the event</param>
/// <param name="e">event arguments</param>
private void StartNewFlightBtn_Click(object sender, RoutedEventArgs e)
{
if (!string.IsNullOrEmpty(CheckFormatOfFlightCode(FlightCodeTextBox.Text)))
{
FlightWindow flight = new FlightWindow(FlightCodeTextBox.Text);
flight.Show();
SubscribeToTheEventsOfFlightWindow(flight);
}
else if (!string.IsNullOrEmpty(FlightCodeTextBox.Text) && string.IsNullOrEmpty(CheckFormatOfFlightCode(FlightCodeTextBox.Text)))
{
MessageBox.Show("Please supply a flight code in the form ABC AB123 (in the case of SAS: SAS, American Airlines: AAL, Lufthansa: DLH))", "Take note");
}
else
{
MessageBox.Show("Please supply a flight code", "Take note");
}
}