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|
-----------------------------------------------------------------------------
-- |
-- Module : XMonad.Actions.RotSlaves
-- Copyright : (c) Hans Philipp Annen <haphi@gmx.net>, Mischa Dieterle <der_m@freenet.de>
-- License : BSD3-style (see LICENSE)
--
-- Maintainer : Hans Philipp Annen <haphi@gmx.net>
-- Stability : stable
-- Portability : unportable
--
-- Rotate all windows except the master window and keep the focus in
-- place.
-----------------------------------------------------------------------------
module XMonad.Actions.RotSlaves (
-- $usage
rotSlaves', rotSlavesUp, rotSlavesDown,
rotAll', rotAllUp, rotAllDown
) where
import XMonad.StackSet
import XMonad
-- $usage
--
-- To use this module, import it with:
--
-- > import XMonad.Actions.RotSlaves
--
-- and add whatever keybindings you would like, for example:
--
-- > , ((modMask x .|. shiftMask, xK_Tab ), rotSlavesUp)
--
-- This operation will rotate all windows except the master window,
-- while the focus stays where it is. It is useful together with the
-- TwoPane layout (see "XMonad.Layout.TwoPane").
--
-- For detailed instructions on editing your key bindings, see
-- "XMonad.Doc.Extending#Editing_key_bindings".
-- | Rotate the windows in the current stack, excluding the first one
-- (master).
rotSlavesUp,rotSlavesDown :: X ()
rotSlavesUp = windows $ modify' (rotSlaves' (\l -> (tail l)++[head l]))
rotSlavesDown = windows $ modify' (rotSlaves' (\l -> [last l]++(init l)))
-- | The actual rotation, as a pure function on the window stack.
rotSlaves' :: ([a] -> [a]) -> Stack a -> Stack a
rotSlaves' _ s@(Stack _ [] []) = s
rotSlaves' f (Stack t [] rs) = Stack t [] (f rs) -- Master has focus
rotSlaves' f s@(Stack _ ls _ ) = Stack t' (reverse revls') rs' -- otherwise
where (master:ws) = integrate s
(revls',t':rs') = splitAt (length ls) (master:(f ws))
-- | Rotate all the windows in the current stack.
rotAllUp,rotAllDown :: X ()
rotAllUp = windows $ modify' (rotAll' (\l -> (tail l)++[head l]))
rotAllDown = windows $ modify' (rotAll' (\l -> [last l]++(init l)))
-- | The actual rotation, as a pure function on the window stack.
rotAll' :: ([a] -> [a]) -> Stack a -> Stack a
rotAll' f s = Stack r (reverse revls) rs
where (revls,r:rs) = splitAt (length (up s)) (f (integrate s))
|
