void ListenOrStopListen()
{
if ((tv_Sessions.SelectedNode != null) && (tv_Sessions.SelectedNode.Tag != null))
{
var session = (ISession)tv_Sessions.SelectedNode.Tag;
if (session == null)
{
return;
}
if (listened.Contains(session))
{
presenter.StopListening(session);
btn_Listen.Text = Constants.LISTEN;
tv_Sessions.SelectedNode.BackColor = joined.Contains(session) ? Constants.JOINED_COLOR : tv_Sessions.BackColor;
}
else
{
presenter.Listen(session);
btn_Listen.Text = Constants.STOP_LISTENING;
tv_Sessions.SelectedNode.BackColor = Constants.LISTENING_COLOR;
}
}
}