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49 lines
1.3 KiB
Haskell
49 lines
1.3 KiB
Haskell
-----------------------------------------------------------------------------
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-- |
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-- Module : XMonadContrib.FocusNth
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-- Copyright : (c) Karsten Schoelzel <kuser@gmx.de>
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-- License : BSD
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--
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-- Maintainer : Karsten Schoelzel <kuser@gmx.de>
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-- Stability : unstable
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-- Portability : unportable
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--
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-- Focus the nth window on the screen.
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-----------------------------------------------------------------------------
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module XMonadContrib.FocusNth (
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-- * Usage
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-- $usage
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focusNth) where
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import StackSet
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import Operations
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import XMonad
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-- $usage
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-- > import XMonadContrib.FocusNth
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-- > -- mod4-[1..9] @@ Switch to window N
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-- > ++ [((mod4Mask, k), focusNth i)
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-- > | (i, k) <- zip [0 .. 8] [xK_1 ..]]
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-- %import XMonadContrib.FocusNth
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-- %keybdindextra ++
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-- %keybdindextra -- mod4-[1..9] @@ Switch to window N
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-- %keybdindextra [((mod4Mask, k), focusNth i)
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-- %keybdindextra | (i, k) <- zip [0 .. 8] [xK_1 ..]]
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focusNth :: Int -> X ()
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focusNth = windows . modify' . focusNth'
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focusNth' :: Int -> Stack a -> Stack a
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focusNth' n s@(Stack _ ls rs) | (n < 0) || (n > length(ls) + length(rs)) = s
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| otherwise = listToStack n (integrate s)
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listToStack :: Int -> [a] -> Stack a
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listToStack n l = Stack t ls rs
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where (t:rs) = drop n l
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ls = reverse (take n l)
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