Getting a callback when a UI is closed

[Ben Christel]

Is there a way to register a callback for when a UI's close button
gets clicked? I want my UI to be able to know when it's about to
close so it can save the user's input by sending it to the presence
that manages the UI.

If there's no good way to do that, then can I hide or disable the
built-in close button somehow?

[Ewen Cheslack-Postava]

Absolutely. We use a modified version of the standard JQuery UI dialog
http://jqueryui.com/demos/dialog/, so things should just work as they
do with a dialog.

In your case, you probably want to use beforeClose so you can get
information out before the dialog is destroyed:

sirikata.ui.window(
'#selector',
{
beforeClose: function(event, ui) {
// ui is the thing closing
}
}
);

-Ewen