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+-----------------------------------------------------------------------------
+-- |
+-- Module : XMonad.Actions.RotView
+-- Copyright : (c) David Roundy <droundy@darcs.net>
+-- License : BSD3-style (see LICENSE)
+--
+-- Maintainer : David Roundy <droundy@darcs.net>
+-- Stability : unstable
+-- Portability : unportable
+--
+-- Provides bindings to cycle through non-empty workspaces.
+--
+-----------------------------------------------------------------------------
+
+module XMonad.Actions.RotView (
+ -- * Usage
+ -- $usage
+ rotView
+ ) where
+
+import Control.Monad.State ( gets )
+import Data.List ( sortBy, find )
+import Data.Maybe ( isJust )
+import Data.Ord ( comparing )
+
+import XMonad
+import XMonad.StackSet hiding (filter)
+import XMonad.Operations
+
+-- $usage
+-- You can use this module with the following in your Config.hs file:
+--
+-- > import XMonad.Actions.RotView
+--
+-- > , ((modMask .|. shiftMask, xK_Right), rotView True)
+-- > , ((modMask .|. shiftMask, xK_Left), rotView False)
+
+-- %import XMonad.Actions.RotView
+-- %keybind , ((modMask .|. shiftMask, xK_Right), rotView True)
+-- %keybind , ((modMask .|. shiftMask, xK_Left), rotView False)
+
+rotView :: Bool -> X ()
+rotView forward = do
+ ws <- gets windowset
+ let currentTag = tag . workspace . current $ ws
+ sortWs = sortBy (comparing tag)
+ isNotEmpty = isJust . stack
+ sorted = sortWs (hidden ws)
+ pivoted = let (a,b) = span ((< currentTag) . tag) sorted in b ++ a
+ pivoted' | forward = pivoted
+ | otherwise = reverse pivoted
+ nextws = find isNotEmpty pivoted'
+ whenJust nextws (windows . view . tag)