Use screensaver framework to maintain fullscreen mode?

I'd like to ensure that no matter how much I tamper with XBMC settings and poke around the system, when I leave it alone for an hour XBMC should take it upon itself to switch itself back into fullscreen mode if necessary.

I'm thinking a dummy screensaver might be the perfect framework for this?

User can set a timeout as always, except when the timeout occurs the addon would simply trigger a fullcreen event (the equivalent of putting focus on XBMC and hittin the "\" key)

Anyone got an empty framework that I might use as a starting point for this?

I dont suppose anyone who'd more expert than me might want to take a crack at what im descrbiing?