Restrict to only one Native Window?

Question

Hello everyone, im trying to create a simple twitter client as a project for getting acquainted a little bit more with AIR. So far im able to fetch the data, if i double click on a message a new Window is opened where i could reply to the user. The problem is that if i double click again on other (or the same) message another window opens. This is not the desired behavior.
What would be the best way so that ONLY one reply window is open at any given time?
I'm thinking:
1. Disable the double click property of the list.
2. A singleton.
But im sure there must be a more "accepted" formal way of doing this.
Thanks!
Alejandro

Answer 1

I had a typo when I originally posted, but your code should work if you do it like this:
public var sendMsg:SendSMS; // don't instantiate this yet
    private function onItemDoubleClick(event:ListEvent):void {
            if (sendMsg == null || sendMsg.closed) // notice that I changed != to ==
                    sendMsg = new SendSMS(); // don't declare a duplicate variable, use the variable declared outside
                    sendMsg.height = 500;
                    sendMsg.width = 500;
                    sendMsg.tweetName = event.currentTarget.selectedItem.user;
                    sendMsg.open();
                    sendMsg.addEventListener(SendSMSEvent.ENABLE_CHANGED, handleClick);       
                    else
                         // This implies that the window is still open
                         sendMsg.tweetName = event.currentTarget.selectedItem.user;
                         // You'll need to make sure you are either binding to tweetName in your display, or that tweetName is actually a setter and you
                         // modify whatever is displaying it when it is changed