Handling Mac Close events

Question

I'm having an issue handling the various close event when running my application on a Mac. (all fine on Windows)
When loading the page I execute this statement:
window.nativeWindow.addEventListener(air.Event.CLOSING, MainWindow_OnClosing);
The code to handle this event is as follows:
var MainWindow_OnClosing = function(event){
        event.preventDefault();
        window.nativeWindow.visible = false;
I need this handler so that the application returns to the Doc when hitting the standard Chrome close button.
The problem I have is that this event also fires when a user hits the Command-Q comment (and also when the user shuts down the mac). This prevent the application from closing which is not what I want to do. The only way to close the application seems to be the ForceQuit command.
Does anyone know of a way to distinguish between the close event from the Chrome close button and the close event from the Command-Quit or shutdown event?

Answer 1

Yeh, thing is these are just data object, not anything graphical... but i want my graphical components to update when their data is changed.
Ive actually just now re-organised it a bit, ive set up each data object to have its own listeners, where as before i had the gui component had listeners...
Is there anything in the java api that i could extend to include listeners? otherwise ill just make one...