I would like to add multi-key/click functionality to my Flex app.
There are a couple of slightly different examples of what I mean:

1. Detect when a user is holding down the 'r' key while clicking a button.

2. Detect when a certain component has focus and the user types the
letters 'd' 's' in succession within a few seconds of each other.

I noticed there are properties in the MouseEvent class to detect
things like shift,ctrl and alt keys but I need to detect more than
just those. Additionally those properties don't exist in other event
classes like ItemClickEvent.

What I have done so far is simply create a state object at the
application level that captures all keyboard/mouse events and sets the
state of itself based on the events. Individual components can check
the current state at any time to determine which keys/mouse actions
are currently active. 

I don't particularly like this implementation for many reasons and was
hoping someone knew of a pattern to use considering many applications
support such functionality (Eclipse comes to mind).

Thanks!

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