Xmonad/Config archive/vvv's xmonad.hs

{-# OPTIONS_GHC -Wall #-}
-- core
import XMonad
import XMonad.Layouts
import XMonad.Operations
import qualified XMonad.StackSet as W

-- XMonadContrib
import XMonad.Actions.CycleWS
import XMonad.Actions.DynamicWorkspaces
import XMonad.Actions.Submap
import XMonad.Hooks.DynamicLog
import XMonad.Layout.NoBorders
import XMonad.Prompt
import XMonad.Prompt.Man
import XMonad.Prompt.Shell
import XMonad.Prompt.Ssh

import Graphics.X11.Xlib

import Data.Bits ((.|.))
import qualified Data.Map as M
import Prelude hiding (mod)
import Ratio ((%))

main :: IO ()
main = xmonad defaultConfig
       { workspaces         = ["emacs", "term", "web"]
       , defaultGaps        = [(0,15,0,0)]
       , layoutHook         = Layout layout'
       , focusedBorderColor = "#00ff00"
       , modMask            = mod4Mask
       , keys               = keys'
       , logHook            = dynamicLog
       }
    where
      layout' = tiled ||| Mirror tiled ||| noBorders Full
      tiled   = Tall 1 (2%100) (755%1024) -- Tall <nmaster> <delta> <ratio>

keys' :: XConfig -> M.Map (KeyMask, KeySym) (X ())
keys' c = insert (iks c) $ delete (dks c) $ (keys defaultConfig) c
    where
      insert :: (Ord k) => [(k, a)] -> M.Map k a -> M.Map k a
      insert = flip $ foldr (uncurry M.insert)

      delete :: (Ord k) => [k] -> M.Map k a -> M.Map k a
      delete = flip $ foldr M.delete

dks :: XConfig -> [(KeyMask, KeySym)]
dks XConfig {modMask = mod} =
    [ (mod .|. shiftMask, xK_Return)
    , (mod,               xK_p)
    , (mod .|. shiftMask, xK_p)
    , (mod .|. shiftMask, xK_c)
    , (mod,               xK_b)
    ]
    ++
    [ (mod .|. m, k)
      | (m, k) <- zip [0, shiftMask] ([xK_1..xK_9] ++ [xK_w, xK_e, xK_r])
    ]

iks :: XConfig -> [((KeyMask, KeySym), X ())]
iks conf@(XConfig {modMask = mod}) =
    [ ((mod1Mask, xK_F2    ), spawn $ terminal conf) -- mod1-f2 %! Run a terminal emulator
    , ((mod,      xK_Delete), kill) -- %! Close the focused window
    , ((mod1Mask, xK_Down  ), spawn "amixer set Master 1-") -- mod1-down %! Decrease audio volume
    , ((mod1Mask, xK_Up    ), spawn "amixer set Master 1+") -- mod1-up   %! Increase audio volume
    , ((mod .|. controlMask, xK_F11), spawn "xscreensaver-command -lock") -- %! Lock the screen
    , ((mod,      xK_s     ), modifyGap (\i n -> let x = (defaultGaps conf ++ repeat (0,0,0,0)) !! i in if n == x then (0,0,0,0) else x)) -- %! Toggle the status bar gap
    ]
    ++
    [ ((mod1Mask, xK_F1), manPrompt   defaultXPConfig) -- mod1-f1 %! Query for manual page to be displayed
    , ((mod1Mask, xK_F3), shellPrompt defaultXPConfig) -- mod1-f3 %! Query for command line to execute
    , ((mod1Mask, xK_F4), sshPrompt   defaultXPConfig) -- mod1-f4 %! Query for host to connect to with SSH

    , (-- mod-i submap
       (mod, xK_i), submap . M.fromList $
       [ ((m, k), f)
         | m <- [0, mod]
         , (k, f) <- [ (xK_i, toggleWS) -- mod-i i, mod-i mod-i %! Toggle to the workspace displayed previously
                     , (xK_p, prevWS  ) -- mod-i p, mod-i mod-p %! Switch to the previous workspace
                     , (xK_n, nextWS  ) -- mod-i n, mod-i mod-n %! Switch to the next workspace
                     ]
       ]
       ++
       [ ((0,         xK_apostrophe), selectWorkspace defaultXPConfig) -- mod-i ' %! Prompt for a workspace number/name to switch to
       , ((shiftMask, xK_a         ), renameWorkspace defaultXPConfig) -- mod-i A %! Allow the user to enter a name for the current workspace
       , ((0,         xK_BackSpace ), removeWorkspace) -- mod-i backspace %! Destroy current workspace
       ]
       ++
       [ ((m, k), withNthWorkspace f i)
         | (i, k) <- zip [0..] [xK_1..xK_9]
         , (f, m) <- [ (W.greedyView, 0)    -- mod-i [1..9] %! Switch to workspace 1..9
                     , (W.greedyView, mod)  -- mod-i mod-[1..9] %! Switch to workspace 1..9
                     , (W.shift, shiftMask) -- mod-i shift-[1..9] %! Move client to workspace 1..9
                     ]
       ]
      )
    ]