Using new "afterdraw" event to set focus on value variation input box

Since the Variation's draw() has been converted to asynchronous operation, the focus can only
be set after being notified about draw() having finished. (bug 62606)

Change-Id: I7275028b753f59d7ff8e535d40a197d0cfb16194
Merge "Using new "afterdraw" event to set focus on value variation input box"