The 'FullscreenFull' layout modifier hides all windows fully covered by
the fullscreen area, even when no fullscreen windows are present. Fix
this, closing #278. Also switch to 'X.U.Rectangle'.
There's no reason to return a rectangle for any window that is totally
obscured by a full-screen window, and not doing so has the nice property that
when hidden windows' borders overlap with a full-screen window's, the user
will not be confused by overlapping partially-drawn borders. It also makes the
Fullscreen modifiers combine much better with smartBorders.
Note that the use of RebindableSyntax is because of the need to vary the
layoutHook type throughout the config. The alternative, using the existential
Layout type, was rejected because it required TemplateHaskell in order to look
nice, and TemplateHaskell is not portable.
I've tried to make a version of (>>) that also worked on normal monads, but
have had no luck as of yet. Maybe some intrepid soul can add it later.
XMonad core re-exports Control.Monad.State, which includes
a function "state" if you happen to use mtl-2. Since there's
a chance xmonad still works with mtl-1 avoid imports like:
import XMonad hiding (state)
