Hierarchify

darcs-hash:20071101201059-a5988-fc1f1262bec1b69e13ba18ae7cefeafc8c4471d4.gz

1 files changed, 48 insertions, 0 deletions

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