void connection_TimeRemainingChanged(ConnectionManager conn, TimeEvents e)
{
if (InvokeRequired)
{
Invoke(new Action<ConnectionManager, TimeEvents>(connection_TimeRemainingChanged), conn, e);
return;
}
if (e.TimeRemanining.TotalSeconds <= 1)
{
lblStatus.Text = "Logging you off...";
lblStatus.ForeColor = Color.Red;
lblStatus.Visible = true;
}
else
{
lblStatus.Text = "Time remaining: " + e.TimeRemanining.ToString("g");
lblStatus.ForeColor = Color.Green;
lblStatus.Visible = true;
}
}
/*
* Send a keepalive message to the server whenever the timer tells it to.
* Triggers an event once remaining time has been determined.
*/
private void Keepalive(object sender, System.Timers.ElapsedEventArgs e)
{
string postString = "terminalId=" + TerminalId + "×tamp=" + GetTimestamp() + "&token=" + LoginToken;
string response = GetResponse(KeepAliveUrl, postString);
Dictionary<string, object> parsed = ParseJSON(response);
if (parsed.ContainsKey("timeRemaining"))
{
int seconds = (int)parsed["timeRemaining"];
if (seconds <= 0)
{
StopKeepalive();
Thread.Sleep(10000);
// Force log off
ExitWindowsEx(4, 0);
}
else if (TimeRemainingChanged != null)
{
TimeEvents time = new TimeEvents();
time.TimeRemanining = new TimeSpan(0, 0, seconds);
TimeRemainingChanged(this, time);
}
}
}