How to change component state on Scene event? #39

Hi

is it possible to assign an event listener to a Scene?

Access to events is described here
#2
and here #34
by wrapping Scene's child in a function. This does "give access" to events, but I need to change component state on event, and for that I need to assign a listener, not call a handler directly; because since the wrapper function is inside render(), I can't call state change from there (a React no-no).

How can I accomplish component state change on, say, enter or leave event?