Question

say an application has panel and panel has button and textField or textArea. we click on a button to hit a service say via cairngorm framework.

The Events lifecycle follows the capture-target-bubble cycle in the display hierarchy like the MouseClick event on button will call the handlers for the listeners attached to button and/or panel and/or application and/or stage since the flow moves in this direction.

How do the event on non hierarchy works e.g the result from the service fires a custom event DataRecieved. we have a listener attached to the panel/button for this dataRecieved event. How do this listener gets the information? how the event lifecycle comes into this picture?

Can anyone explain this?

Thanks!

Answer 1

I found out the concept of GlobalEventDispatcher to which we can attach listeners and dispatch from the same.

a ref from another question was helpful – Flex Custom Event dispatching
The important point is that – the instance of dispatcher must be same. we can keep a Custom Global singleton event dispatcher for our application or we can use stage/systemManager/FexGlobals.toplevelapplicaton for the purpose which might not be a good Practice.