private async void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
var deviceName = ConfigurationManager.AppSettings["DeviceName"];
device = PTZDevice.GetDevice(deviceName, PTZType.Relative);
url = ConfigurationManager.AppSettings["relayServerUrl"];
remoteGroup = Environment.MachineName; //They have to hardcode the group, but for us it's our machine name
connection = new HubConnection(url);
proxy = connection.CreateHubProxy("RelayHub");
connection.TraceLevel = TraceLevels.StateChanges | TraceLevels.Events;
connection.TraceWriter = new PTZRemoteTraceWriter(Log);
//Can't do this here because DirectShow has to be on the UI thread!
// This would cause an obscure COM casting error with no clue what's up. So, um, ya.
//proxy.On<int, int>("Move",(x,y) => device.Move(x, y));
//proxy.On<int>("Zoom", (z) => device.Zoom(z));
magic = SynchronizationContext.Current;
proxy.On <int, int>("Move", (x, y) =>
{
//Toss this over the fence from this background thread to the UI thread
magic.Post((_) => {
Log(String.Format("Move({0},{1})", x, y));
device.Move(x, y);
}, null);
});
proxy.On <int>("Zoom", (z) =>
{
magic.Post((_) =>
{
Log(String.Format("Zoom({0})", z));
device.Zoom(z);
}, null);
});
try
{
await connection.Start();
Log("After connection.Start()");
await proxy.Invoke("JoinRelay", remoteGroup);
Log("After JoinRelay");
}
catch (Exception pants)
{
Log(pants.GetError().ToString());
throw;
}
}
protected override void OnStart(string[] args)
{
PTZDevice device = null;
httpsv = new HttpServer(4649);
httpsv.OnGet += (sender, e) =>
{
HttpListenerRequest req = e.Request;
HttpListenerResponse res = e.Response;
string msg = "";
string query = req.QueryString.ToString();
if (query.Contains("init"))
{
Match match = Regex.Match(query, "init=(.+)");
string deviceName = match.Groups[1].Captures[0].ToString();
try
{
device = PTZDevice.GetDevice(deviceName, PTZType.Relative);
msg = "Device created";
res.StatusCode = (int)HttpStatusCode.OK;
}
catch (Exception ex)
{
msg = ex.Message;
res.StatusCode = (int)HttpStatusCode.InternalServerError;
}
}
else if (query.Contains("action"))
{
if (device == null)
{
msg = "Device must be initialized before using";
res.StatusCode = (int)HttpStatusCode.BadRequest;
}
else
{
Match match = Regex.Match(query, "action=(.+)");
string action = match.Groups[1].Captures[0].ToString();
if (action.Equals("move_left"))
{
device.Move(-1, 0);
}
else if (action.Equals("move_right"))
{
device.Move(1, 0);
}
else if (action.Equals("move_up"))
{
device.Move(0, -1);
}
else if (action.Equals("move_down"))
{
device.Move(0, 1);
}
else if (action.Equals("zoom_in"))
{
device.Zoom(1);
}
else if (action.Equals("zoom_out"))
{
device.Zoom(-1);
}
else
{
msg = "Unsupported action: " + action;
res.StatusCode = (int)HttpStatusCode.BadRequest;
}
}
}
else
{
msg = "Invalida request";
res.StatusCode = (int)HttpStatusCode.BadRequest;
}
string json = "{\"message\":\"" + msg + "\", \"query\":\"" + req.QueryString + "\"}";
res.ContentType = "application/json";
res.ContentEncoding = Encoding.UTF8;
res.WriteContent(Encoding.UTF8.GetBytes(json));
};
httpsv.Start();
if (httpsv.IsListening)
{
Console.WriteLine("Listening on port {0}, and providing WebSocket services:", httpsv.Port);
foreach (var path in httpsv.WebSocketServices.Paths)
{
Console.WriteLine("- {0}", path);
}
}
}