/// <summary>
/// Handle Chat Message button click
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnSendChat_Click(object sender, RoutedEventArgs e)
{
//// create the chat message
var chatMessageBody = new ChatMessage() { From = Username, MessageText = txtUserChatMessage.Text };
var messageBody = new SocketServiceMessage() { Action = SocketServiceAction.ChatMessage, Message = chatMessageBody };
var msg = JsonMessageSerializer.Serialize(messageBody);
////send the message to the service topic
_svcClient.Receive(msg);
}
public ChatRoom(string username)
{
InitializeComponent();
Username = username;
// create the callback handler and the service client
var callbackContext = new InstanceContext(new CallbackHandler(this));
var factory = new DuplexChannelFactory<ISocketChatService>(callbackContext, "SocketChatService");
_svcClient = factory.CreateChannel();
// Create the custom logon message and send in order to logon
var loginMessageBody = new SocketServiceMessage() { Action = SocketServiceAction.Login, Username = username };
var loginMessage = JsonMessageSerializer.Serialize(loginMessageBody);
_svcClient.Receive(loginMessage);
}
protected override async void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
// retrieve the username from the payload
_username = (string)e.Parameter;
try
{
// Make a local copy to avoid races with Closed events.
MessageWebSocket webSocket = messageWebSocket;
// Have we connected yet?
if (webSocket == null)
{
Uri server = new Uri("ws://vdev-pc/svc/SocketChatService.svc");
webSocket = new MessageWebSocket();
// MessageWebSocket supports both utf8 and binary messages.
// When utf8 is specified as the messageType, then the developer
// promises to only send utf8-encoded data.
webSocket.Control.MessageType = SocketMessageType.Utf8;
// Set up callbacks
webSocket.MessageReceived += MessageReceived;
await webSocket.ConnectAsync(server);
messageWebSocket = webSocket; // Only store it after successfully connecting.
messageWriter = new DataWriter(webSocket.OutputStream);
}
// create the main message and serialize to string
SocketServiceMessage msgBody = new SocketServiceMessage() { Action = SocketServiceAction.Login, Username = _username };
string msgBodyString = JsonConvert.SerializeObject(msgBody);
// Buffer any data we want to send.
messageWriter.WriteString(msgBodyString);
// Send the data as one complete message.
await messageWriter.StoreAsync();
}
catch (Exception ex) // For debugging
{
WebErrorStatus status = WebSocketError.GetStatus(ex.GetBaseException().HResult);
}
}
/// <summary>
/// Handle the user clicking the send button
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private async void btnSendChatMessage_Click(object sender, RoutedEventArgs e)
{
// create the chat message and send it across the wire
var chatMessage = new ChatMessage() { From = _username, MessageText = txtUserMessage.Text };
// create the wrapper message and serialize it to string
var wrapperMsg = new SocketServiceMessage() { Action = SocketServiceAction.ChatMessage, Message = chatMessage };
string msg = JsonConvert.SerializeObject(wrapperMsg);
// buffer the message
messageWriter.WriteString(msg);
// send the message
await messageWriter.StoreAsync();
//_svcClient.SendMessageAsync(msg);
// clear out the message text box
txtUserMessage.Text = "";
}
