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+-----------------------------------------------------------------------------
+-- |
+-- Module : XMonad.Actions.SwapWorkspaces
+-- Copyright : (c) Devin Mullins <me@twifkak.com>
+-- License : BSD3-style (see LICENSE)
+--
+-- Maintainer : Devin Mullins <me@twifkak.com>
+-- Stability : unstable
+-- Portability : unportable
+--
+-- Lets you swap workspace tags, so you can keep related ones next to
+-- each other, without having to move individual windows.
+--
+-----------------------------------------------------------------------------
+
+module XMonad.Actions.SwapWorkspaces (
+ -- * Usage
+ -- $usage
+ swapWithCurrent,
+ swapWorkspaces
+ ) where
+
+import XMonad.StackSet
+
+-- $usage
+-- Add this import to your Config.hs:
+--
+-- > import XMonad.Actions.SwapWorkspaces
+--
+-- Throw this in your keys definition:
+--
+-- > ++
+-- > [((modMask .|. controlMask, k), windows $ swapWithCurrent i)
+-- > | (i, k) <- zip workspaces [xK_1 ..]]
+
+-- %import XMonad.Actions.SwapWorkspaces
+-- %keybindlist ++
+-- %keybindlist [((modMask .|. controlMask, k), windows $ swapWithCurrent i)
+-- %keybindlist | (i, k) <- zip workspaces [xK_1 ..]]
+--
+-- After installing this update, if you're on workspace 1, hitting mod-ctrl-5
+-- will swap workspaces 1 and 5.
+
+-- | Swaps the currently focused workspace with the given workspace tag, via
+-- @swapWorkspaces@.
+swapWithCurrent :: Eq i => i -> StackSet i l a s sd -> StackSet i l a s sd
+swapWithCurrent t s = swapWorkspaces t (tag $ workspace $ current s) s
+
+-- | Takes two workspace tags and an existing XMonad.StackSet and returns a new
+-- one with the two corresponding workspaces' tags swapped.
+swapWorkspaces :: Eq i => i -> i -> StackSet i l a s sd -> StackSet i l a s sd
+swapWorkspaces t1 t2 = mapWorkspace swap
+ where swap w = if tag w == t1 then w { tag = t2 }
+ else if tag w == t2 then w { tag = t1 }
+ else w