// Control window visibility using keyboard
private void CommandLine_PreviewKeyDown(object sender, KeyEventArgs e)
{
if (e.Key == Key.Escape)
{
Visibility = Visibility.Collapsed;
e.Handled = true;
}
else if (e.Key == Key.Enter && Input.IsKeyboardFocused)
{
InitiateCommand();
e.Handled = true;
}
else if (e.Key == Key.Up)
{
_commandHistory.SetToNextNode();
Input.Text = _commandHistory.CurrentNode;
e.Handled = true;
}
else if (e.Key == Key.Down)
{
_commandHistory.SetToPreviousNode();
Input.Text = _commandHistory.CurrentNode;
}
}