I'm trying to wrap an XMLSocket object in a singleton class to manage
my (single) XMLSocket connection, but I can't seem to get it to throw
any events. Is it that I need to put it into my .mxml file as a
component or something? Right now it is just an actionScript class.
I was wanting to stick to the cairngorm framework's delegate model, but
my SocketManager actually initiates commands from the server it is
connected to (the whole point of my XMLSocket) so this class will need
to dispatch a bunch events, preferably using the
addEventListener+dispatchEvent model.
Whenever the socket connection succeeds, I get my "SocketManager:
Socket connection attempt succeeded" trace statement, then I get a
warning which says "Warning: dispatchEvent is not a function" which
leads me to believe that the EventDispatcher voodoo I'm doing in my
constructor isn't working. Is it possible to send events like this?
Any help is appreciated.
Thanks,
Sean McKibben
(code below)
import com.iterationtwo.cairngorm.business.*;
import mx.utils.Delegate;
import mx.events.*;
[Event("onSocketOpen")]
[Event("onSocketClose")]
class com.client.capture.business.SocketManager extends MovieClip
//(also tried extending mx.core.UIObject and nothing)
{
public static var socketManager:SocketManager;
private static var mySocket:XMLSocket;
private static var isSocketConnected:Boolean = false;
public var addEventListener:Function;
public var removeEventListener:Function;
private var dispatchEvent:Function;
public function SocketManager()
{
if ( SocketManager.socketManager != undefined )
throw new Error("Only one SocketManager should be
instantiated");
SocketManager.mySocket = new XMLSocket();
SocketManager.mySocket.onConnect = handleConnect;
SocketManager.mySocket.onClose = handleClose;
SocketManager.mySocket.onXML = handleIncoming;
SocketManager.socketManager = this;
var sm:Object = SocketManager.prototype;
EventDispatcher.initialize(sm);//also tried
UIEventDispatcher.initialize
}
public static function getInstance():SocketManager
{
if(SocketManager.socketManager == undefined)
SocketManager.socketManager = new SocketManager();
return SocketManager.socketManager;
}
public function connect()
{
if(!SocketManager.isSocketConnected)
{
if (!SocketManager.mySocket.connect("localhost",
1249))//<--INSERT
PORT # HERE!!
throw new Error("SocketManager: socket
connection attempt failed
early");
}
else
throw new Error("SocketManager: connect method called
while
connected");
}
public function disconnect()
{
if(SocketManager.isSocketConnected)
{
SocketManager.mySocket.close();
SocketManager.isSocketConnected = false;
trace("SocketManager: closed socket");
}
else
throw new Error("SocketManager: disconnect method
called while not
connected");
}
private function handleConnect (succeeded) {
if(succeeded) {
trace("SocketManager: Socket connection attempt
succeeded");
SocketManager.isSocketConnected = true;
dispatchEvent({type:"onSocketOpen"});
} else {
throw new Error("SocketManager: Socket connection
attempt failed");
}
}
private function handleClose () {
trace("SocketManager: server closed connection");
SocketManager.isSocketConnected = false;
dispatchEvent({type:"onSocketClose"});
}
private function handleIncoming (messageObj) {
// display the received xml data in the output window
trace(">>" + messageObj.toString() + "<<");
}
}
then, in other objects i have
SocketManager.getInstance().addEventListener("onSocketOpen",
mx.utils.Delegate.create(this,onSocketOpen));
but it never gets called...
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