Broadcasting Events from Custom MXML Components - The [Event] Tag

Okay, this was hard for me to wrap my brain around, so let me summarize, in case anyone else is stuck on this. When developing in Flex, all the standard components let you specify a listener when you create them in MXML, like this:

<mx:Button id="someButton" click="handleClick( event );"/>

Now when someone clicks on someButton, it […]