dwt1--dotfiles/.xmonad/xmonad.hs

-- The xmonad configuration of Derek Taylor (DistroTube)
-- My YouTube: http://www.youtube.com/c/DistroTube
-- My GitLab:  http://www.gitlab.com/dwt1/
-- For more information on Xmonad, visit: https://xmonad.org

------------------------------------------------------------------------
-- IMPORTS
------------------------------------------------------------------------
    -- Base
import XMonad
import System.IO (hPutStrLn)
import System.Exit (exitSuccess)
import qualified XMonad.StackSet as W

    -- Prompt
import XMonad.Prompt
import XMonad.Prompt.Input
import XMonad.Prompt.Man
import XMonad.Prompt.Pass
import XMonad.Prompt.Shell (shellPrompt)
import XMonad.Prompt.Ssh
import XMonad.Prompt.XMonad
import Control.Arrow (first)

    -- Data
import Data.Char (isSpace)
import Data.List
import Data.Monoid
import Data.Maybe (isJust)
import qualified Data.Map as M

    -- Utilities
import XMonad.Util.EZConfig (additionalKeysP)
import XMonad.Util.NamedScratchpad
import XMonad.Util.Run (runProcessWithInput, safeSpawn, spawnPipe)
import XMonad.Util.SpawnOnce

    -- Hooks
import XMonad.Hooks.DynamicLog (dynamicLogWithPP, wrap, xmobarPP, xmobarColor, shorten, PP(..))
import XMonad.Hooks.ManageDocks (avoidStruts, docksEventHook, manageDocks, ToggleStruts(..))
import XMonad.Hooks.ManageHelpers (isFullscreen, doFullFloat)
import XMonad.Hooks.ServerMode
import XMonad.Hooks.SetWMName
import XMonad.Hooks.EwmhDesktops  -- for some fullscreen events, also for xcomposite in obs.

    -- Actions
import XMonad.Actions.CopyWindow (kill1, killAllOtherCopies)
import XMonad.Actions.CycleWS (moveTo, shiftTo, WSType(..), nextScreen, prevScreen)
import XMonad.Actions.GridSelect
import XMonad.Actions.MouseResize
import XMonad.Actions.Promote
import XMonad.Actions.RotSlaves (rotSlavesDown, rotAllDown)
import XMonad.Actions.WindowGo (runOrRaise)
import XMonad.Actions.WithAll (sinkAll, killAll)
import qualified XMonad.Actions.Search as S

    -- Layouts modifiers
import XMonad.Layout.Decoration
import XMonad.Layout.LayoutModifier
import XMonad.Layout.LimitWindows (limitWindows, increaseLimit, decreaseLimit)
import XMonad.Layout.MultiToggle (mkToggle, single, EOT(EOT), Toggle(..), (??))
import XMonad.Layout.MultiToggle.Instances (StdTransformers(NBFULL, MIRROR, NOBORDERS))
import XMonad.Layout.NoBorders
import XMonad.Layout.Reflect (REFLECTX(..), REFLECTY(..))
import XMonad.Layout.Renamed (renamed, Rename(Replace))
import XMonad.Layout.Spacing
import XMonad.Layout.Tabbed
import XMonad.Layout.WindowArranger (windowArrange, WindowArrangerMsg(..))
import qualified XMonad.Layout.ToggleLayouts as T (toggleLayouts, ToggleLayout(Toggle))

    -- Layouts
import XMonad.Layout.GridVariants (Grid(Grid))
import XMonad.Layout.SimplestFloat
import XMonad.Layout.Spiral
import XMonad.Layout.ResizableTile
import XMonad.Layout.ThreeColumns
import XMonad.Layout.ZoomRow (zoomReset, ZoomMessage(ZoomFullToggle))

------------------------------------------------------------------------
-- VARIABLES
------------------------------------------------------------------------
myFont :: [Char]
myFont = "xft:Mononoki Nerd Font:bold:pixelsize=13"

myModMask :: KeyMask
myModMask = mod4Mask       -- Sets modkey to super/windows key

myTerminal :: [Char]
myTerminal = "alacritty"   -- Sets default terminal

myBorderWidth :: Dimension
myBorderWidth = 2          -- Sets border width for windows

myNormColor :: [Char]
myNormColor   = "#292d3e"  -- Border color of normal windows

myFocusColor :: [Char]
myFocusColor  = "#bbc5ff"  -- Border color of focused windows

altMask :: KeyMask
altMask = mod1Mask         -- Setting this for use in xprompts

windowCount :: X (Maybe String)
windowCount = gets $ Just . show . length . W.integrate' . W.stack . W.workspace . W.current . windowset

------------------------------------------------------------------------
-- AUTOSTART
------------------------------------------------------------------------
myStartupHook :: X ()
myStartupHook = do
          spawnOnce "nitrogen --restore &" 
          spawnOnce "picom &"
          spawnOnce "nm-applet &"
          spawnOnce "volumeicon &"
          spawnOnce "trayer --edge top --align right --widthtype request --padding 6 --SetDockType true --SetPartialStrut true --expand true --monitor 1 --transparent true --alpha 0 --tint 0x292d3e --height 18 &"
          spawnOnce "emacs --daemon &"
          -- spawnOnce "kak -d -s mysession &"
          setWMName "LG3D"

------------------------------------------------------------------------
-- GRID SELECT
------------------------------------------------------------------------
myColorizer :: Window -> Bool -> X (String, String)
myColorizer = colorRangeFromClassName
                  (0x29,0x2d,0x3e) -- lowest inactive bg
                  (0x29,0x2d,0x3e) -- highest inactive bg
                  (0xc7,0x92,0xea) -- active bg
                  (0xc0,0xa7,0x9a) -- inactive fg
                  (0x29,0x2d,0x3e) -- active fg
                  
-- gridSelect menu layout
mygridConfig :: p -> GSConfig Window
mygridConfig colorizer = (buildDefaultGSConfig myColorizer)
    { gs_cellheight   = 40
    , gs_cellwidth    = 250
    , gs_cellpadding  = 8
    , gs_originFractX = 0.5
    , gs_originFractY = 0.5
    , gs_font         = myFont
    }

spawnSelected' :: [(String, String)] -> X ()
spawnSelected' lst = gridselect conf lst >>= flip whenJust spawn
    where conf = def

-- Set favorite apps for the spawnSelected'
myAppGrid :: [([Char], [Char])]
myAppGrid = [ ("Audacity", "audacity")
            , ("Deadbeef", "deadbeef")
            , ("Emacs", "emacs")
            , ("Firefox", "firefox")
            , ("Geany", "geany")
            , ("Geary", "geary")
            , ("Gimp", "gimp")
            , ("Kdenlive", "kdenlive")
            , ("LibreOffice Impress", "loimpress")
            , ("LibreOffice Writer", "lowriter")
            , ("OBS", "obs")
            , ("PCManFM", "pcmanfm")
            , ("Simple Terminal", "st")
            , ("Steam", "steam")
            , ("Surf Browser", "surf suckless.org")
            , ("Xonotic", "xonotic-glx")
            ]

------------------------------------------------------------------------
-- XPROMPT SETTINGS
------------------------------------------------------------------------
dtXPConfig :: XPConfig
dtXPConfig = def
      { font                = "xft:Mononoki Nerd Font:size=9"
      , bgColor             = "#292d3e"
      , fgColor             = "#d0d0d0"
      , bgHLight            = "#c792ea"
      , fgHLight            = "#000000"
      , borderColor         = "#535974"
      , promptBorderWidth   = 0
      , promptKeymap        = dtXPKeymap
      , position            = Top
--    , position            = CenteredAt { xpCenterY = 0.3, xpWidth = 0.3 }
      , height              = 20
      , historySize         = 256
      , historyFilter       = id
      , defaultText         = []
      , autoComplete        = Just 100000  -- set Just 100000 for .1 sec
      , showCompletionOnTab = False
      , searchPredicate     = isPrefixOf
      , alwaysHighlight     = True
      , maxComplRows        = Nothing      -- set to Just 5 for 5 rows
      }

-- The same config minus the autocomplete feature which is annoying on
-- certain Xprompts, like the search engine prompts.
dtXPConfig' :: XPConfig
dtXPConfig' = dtXPConfig
      { autoComplete = Nothing
      }

-- A list of all of the standard Xmonad prompts
promptList :: [(String, XPConfig -> X ())]
promptList = [ ("m", manPrompt)          -- manpages prompt
             , ("p", passPrompt)         -- get passwords (requires 'pass')
             , ("g", passGeneratePrompt) -- generate passwords (requires 'pass')
             , ("r", passRemovePrompt)   -- remove passwords (requires 'pass')
             , ("s", sshPrompt)          -- ssh prompt
             , ("x", xmonadPrompt)       -- xmonad prompt
             ]

-- A list of my custom prompts
promptList' :: [(String, XPConfig -> String -> X (), String)]
promptList' = [ ("c", calcPrompt, "qalc")         -- requires qalculate-gtk
              ]

------------------------------------------------------------------------
-- CUSTOM PROMPTS
------------------------------------------------------------------------
-- calcPrompt requires a cli calculator called qalcualte-gtk.
-- You could use this as a template for other custom prompts that 
-- use command line programs that return a single line of output.
calcPrompt :: XPConfig -> String -> X () 
calcPrompt c ans =
    inputPrompt c (trim ans) ?+ \input -> 
        liftIO(runProcessWithInput "qalc" [input] "") >>= calcPrompt c 
    where
        trim  = f . f
            where f = reverse . dropWhile isSpace

------------------------------------------------------------------------
-- XPROMPT KEYMAP (emacs-like key bindings)
------------------------------------------------------------------------
dtXPKeymap :: M.Map (KeyMask,KeySym) (XP ())
dtXPKeymap = M.fromList $
     map (first $ (,) controlMask)   -- control + <key>
     [ (xK_z, killBefore)            -- kill line backwards
     , (xK_k, killAfter)             -- kill line fowards
     , (xK_a, startOfLine)           -- move to the beginning of the line
     , (xK_e, endOfLine)             -- move to the end of the line
     , (xK_m, deleteString Next)     -- delete a character foward
     , (xK_b, moveCursor Prev)       -- move cursor forward
     , (xK_f, moveCursor Next)       -- move cursor backward
     , (xK_BackSpace, killWord Prev) -- kill the previous word
     , (xK_y, pasteString)           -- paste a string
     , (xK_g, quit)                  -- quit out of prompt
     , (xK_bracketleft, quit)
     ]
     ++
     map (first $ (,) altMask)       -- meta key + <key>
     [ (xK_BackSpace, killWord Prev) -- kill the prev word
     , (xK_f, moveWord Next)         -- move a word forward
     , (xK_b, moveWord Prev)         -- move a word backward
     , (xK_d, killWord Next)         -- kill the next word
     , (xK_n, moveHistory W.focusUp')   -- move up thru history
     , (xK_p, moveHistory W.focusDown') -- move down thru history
     ]
     ++
     map (first $ (,) 0) -- <key>
     [ (xK_Return, setSuccess True >> setDone True)
     , (xK_KP_Enter, setSuccess True >> setDone True)
     , (xK_BackSpace, deleteString Prev)
     , (xK_Delete, deleteString Next)
     , (xK_Left, moveCursor Prev)
     , (xK_Right, moveCursor Next)
     , (xK_Home, startOfLine)
     , (xK_End, endOfLine)
     , (xK_Down, moveHistory W.focusUp')
     , (xK_Up, moveHistory W.focusDown')
     , (xK_Escape, quit)
     ]

------------------------------------------------------------------------
-- SEARCH ENGINES
------------------------------------------------------------------------
-- Xmonad has several search engines available to use located in
-- XMonad.Actions.Search. Additionally, you can add other search engines
-- such as those listed below.
archwiki, ebay, news, reddit, urban :: S.SearchEngine

archwiki = S.searchEngine "archwiki" "https://wiki.archlinux.org/index.php?search="
ebay     = S.searchEngine "ebay" "https://www.ebay.com/sch/i.html?_nkw="
news     = S.searchEngine "news" "https://news.google.com/search?q="
reddit   = S.searchEngine "reddit" "https://www.reddit.com/search/?q="
urban    = S.searchEngine "urban" "https://www.urbandictionary.com/define.php?term="

-- This is the list of search engines that I want to use. Some are from
-- XMonad.Actions.Search, and some are the ones that I added above.
searchList :: [(String, S.SearchEngine)]
searchList = [ ("a", archwiki)
             , ("d", S.duckduckgo)
             , ("e", ebay)
             , ("g", S.google)
             , ("h", S.hoogle)
             , ("i", S.images)
             , ("n", news)
             , ("r", reddit)
             , ("s", S.stackage)
             , ("t", S.thesaurus)
             , ("v", S.vocabulary)
             , ("b", S.wayback)
             , ("u", urban)
             , ("w", S.wikipedia)
             , ("y", S.youtube)
             , ("z", S.amazon)
             ]

------------------------------------------------------------------------
-- KEYBINDINGS
------------------------------------------------------------------------
-- I am using the Xmonad.Util.EZConfig module which allows keybindings
-- to be written in simpler, emacs-like format.
myKeys :: [([Char], X ())]
myKeys =
    -- Xmonad
        [ ("M-C-r", spawn "xmonad --recompile")      -- Recompiles xmonad
        , ("M-S-r", spawn "xmonad --restart")        -- Restarts xmonad
        , ("M-S-q", io exitSuccess)                  -- Quits xmonad

    -- Run Prompt
        , ("M-S-<Return>", shellPrompt dtXPConfig)   -- Shell Prompt

    -- Windows
        , ("M-S-c", kill1)                           -- Kill the currently focused client
        , ("M-S-a", killAll)                         -- Kill all windows on current workspace

    -- Floating windows
        , ("M-f", sendMessage (T.Toggle "floats"))       -- Toggles my 'floats' layout
        , ("M-<Delete>", withFocused $ windows . W.sink) -- Push floating window back to tile
        , ("M-S-<Delete>", sinkAll)                      -- Push ALL floating windows to tile

    -- Grid Select
        , ("M-S-t", spawnSelected' myAppGrid)                 -- grid select favorite apps
        , ("M-S-g", goToSelected $ mygridConfig myColorizer)  -- goto selected
        , ("M-S-b", bringSelected $ mygridConfig myColorizer) -- bring selected

    -- Windows navigation
        , ("M-m", windows W.focusMaster)     -- Move focus to the master window
        , ("M-j", windows W.focusDown)       -- Move focus to the next window
        , ("M-k", windows W.focusUp)         -- Move focus to the prev window
        --, ("M-S-m", windows W.swapMaster)    -- Swap the focused window and the master window
        , ("M-S-j", windows W.swapDown)      -- Swap focused window with next window
        , ("M-S-k", windows W.swapUp)        -- Swap focused window with prev window
        , ("M-<Backspace>", promote)         -- Moves focused window to master, others maintain order
        , ("M1-S-<Tab>", rotSlavesDown)      -- Rotate all windows except master and keep focus in place
        , ("M1-C-<Tab>", rotAllDown)         -- Rotate all the windows in the current stack
        --, ("M-S-s", windows copyToAll)  
        , ("M-C-s", killAllOtherCopies) 
        
        , ("M-C-M1-<Up>", sendMessage Arrange)
        , ("M-C-M1-<Down>", sendMessage DeArrange)
        , ("M-<Up>", sendMessage (MoveUp 10))             --  Move focused window to up
        , ("M-<Down>", sendMessage (MoveDown 10))         --  Move focused window to down
        , ("M-<Right>", sendMessage (MoveRight 10))       --  Move focused window to right
        , ("M-<Left>", sendMessage (MoveLeft 10))         --  Move focused window to left
        , ("M-S-<Up>", sendMessage (IncreaseUp 10))       --  Increase size of focused window up
        , ("M-S-<Down>", sendMessage (IncreaseDown 10))   --  Increase size of focused window down
        , ("M-S-<Right>", sendMessage (IncreaseRight 10)) --  Increase size of focused window right
        , ("M-S-<Left>", sendMessage (IncreaseLeft 10))   --  Increase size of focused window left
        , ("M-C-<Up>", sendMessage (DecreaseUp 10))       --  Decrease size of focused window up
        , ("M-C-<Down>", sendMessage (DecreaseDown 10))   --  Decrease size of focused window down
        , ("M-C-<Right>", sendMessage (DecreaseRight 10)) --  Decrease size of focused window right
        , ("M-C-<Left>", sendMessage (DecreaseLeft 10))   --  Decrease size of focused window left

    -- Layouts
        , ("M-<Tab>", sendMessage NextLayout)                                    -- Switch to next layout
        , ("M-<Space>", sendMessage (Toggle NBFULL) >> sendMessage ToggleStruts) -- Toggles noborder/full
        , ("M-S-<Space>", sendMessage ToggleStruts)                              -- Toggles struts
        , ("M-S-n", sendMessage $ Toggle NOBORDERS)                              -- Toggles noborder
        , ("M-S-x", sendMessage $ Toggle REFLECTX)
        , ("M-S-y", sendMessage $ Toggle REFLECTY)
        --, ("M-S-m", sendMessage $ Toggle MIRROR)
        , ("M-<KP_Multiply>", sendMessage (IncMasterN 1))   -- Increase number of clients in master pane
        , ("M-<KP_Divide>", sendMessage (IncMasterN (-1)))  -- Decrease number of clients in master pane
        , ("M-S-<KP_Multiply>", increaseLimit)              -- Increase number of windows
        , ("M-S-<KP_Divide>", decreaseLimit)                -- Decrease number of windows

        , ("M-h", sendMessage Shrink)
        , ("M-l", sendMessage Expand)
        , ("M-C-j", sendMessage MirrorShrink)
        , ("M-C-k", sendMessage MirrorExpand)
        , ("M-S-;", sendMessage zoomReset)
        , ("M-;", sendMessage ZoomFullToggle)

    -- Workspaces
        , ("M-.", nextScreen)  -- Switch focus to next monitor
        , ("M-,", prevScreen)  -- Switch focus to prev monitor
        , ("M-S-<KP_Add>", shiftTo Next nonNSP >> moveTo Next nonNSP)       -- Shifts focused window to next ws
        , ("M-S-<KP_Subtract>", shiftTo Prev nonNSP >> moveTo Prev nonNSP)  -- Shifts focused window to prev ws

    -- Scratchpads
        , ("M-C-<Return>", namedScratchpadAction myScratchPads "terminal")
        , ("M-C-c", namedScratchpadAction myScratchPads "mocp")
        
    -- Controls for mocp music player.
        , ("M-u p", spawn "mocp --play")
        , ("M-u l", spawn "mocp --next")
        , ("M-u h", spawn "mocp --previous")
        , ("M-u <Space>", spawn "mocp --toggle-pause")

        -- Open My Preferred Terminal. I also run the FISH shell. Setting FISH as my default shell
    -- breaks some things so I prefer to just launch "fish" when I open a terminal.
        , ("M-<Return>", spawn (myTerminal ++ " -e fish"))

    --- Dmenu Scripts (Alt+Ctr+Key)
        --, ("M-S-<Return>", spawn "dmenu_run")
        , ("M1-C-e", spawn "./.dmenu/dmenu-edit-configs.sh")
        , ("M1-C-m", spawn "./.dmenu/dmenu-sysmon.sh")
        --, ("M1-C-p", spawn "passmenu")
        --, ("M1-C-s", spawn "./.dmenu/dmenu-surfraw.sh")
        , ("M1-C-/", spawn "./.dmenu/dmenu-scrot.sh")

    --- My Applications (Super+Alt+Key)
        , ("M-M1-a", spawn (myTerminal ++ " -e ncpamixer"))
        , ("M-M1-b", spawn ("surf www.youtube.com/c/DistroTube/"))
        , ("M-M1-e", spawn (myTerminal ++ " -e neomutt"))
        , ("M-M1-f", spawn (myTerminal ++ " -e sh ./.config/vifm/scripts/vifmrun"))
        , ("M-M1-i", spawn (myTerminal ++ " -e irssi"))
        , ("M-M1-j", spawn (myTerminal ++ " -e joplin"))
        , ("M-M1-l", spawn (myTerminal ++ " -e lynx -cfg=~/.lynx/lynx.cfg -lss=~/.lynx/lynx.lss gopher://distro.tube"))
        , ("M-M1-m", spawn (myTerminal ++ " -e mocp"))
        , ("M-M1-n", spawn (myTerminal ++ " -e newsboat"))
        , ("M-M1-p", spawn (myTerminal ++ " -e pianobar"))
        , ("M-M1-r", spawn (myTerminal ++ " -e rtv"))
        , ("M-M1-t", spawn (myTerminal ++ " -e toot curses"))
        , ("M-M1-w", spawn (myTerminal ++ " -e wopr report.xml"))
        , ("M-M1-y", spawn (myTerminal ++ " -e youtube-viewer"))

    -- Multimedia Keys
        , ("<XF86AudioPlay>", spawn "cmus toggle")
        , ("<XF86AudioPrev>", spawn "cmus prev")
        , ("<XF86AudioNext>", spawn "cmus next")
        -- , ("<XF86AudioMute>",   spawn "amixer set Master toggle")  -- Bug prevents it from toggling correctly in 12.04.
        , ("<XF86AudioLowerVolume>", spawn "amixer set Master 5%- unmute")
        , ("<XF86AudioRaiseVolume>", spawn "amixer set Master 5%+ unmute")
        , ("<XF86HomePage>", spawn "firefox")
        , ("<XF86Search>", safeSpawn "firefox" ["https://www.google.com/"])
        , ("<XF86Mail>", runOrRaise "geary" (resource =? "thunderbird"))
        , ("<XF86Calculator>", runOrRaise "gcalctool" (resource =? "gcalctool"))
        , ("<XF86Eject>", spawn "toggleeject")
        , ("<Print>", spawn "scrotd 0")
        ]
        -- Appending search engines to keybindings list
        ++ [("M-s " ++ k, S.promptSearch dtXPConfig' f) | (k,f) <- searchList ]
        ++ [("M-S-s " ++ k, S.selectSearch f) | (k,f) <- searchList ]
        ++ [("M-p " ++ k, f dtXPConfig') | (k,f) <- promptList ]
        ++ [("M-p " ++ k, f dtXPConfig' g) | (k,f,g) <- promptList' ]
        -- Appending named scratchpads to keybindings list
          where nonNSP          = WSIs (return (\ws -> W.tag ws /= "nsp"))
                nonEmptyNonNSP  = WSIs (return (\ws -> isJust (W.stack ws) && W.tag ws /= "nsp"))
                
------------------------------------------------------------------------
-- WORKSPACES
------------------------------------------------------------------------
-- My workspaces are clickable meaning that the mouse can be used to switch
-- workspaces. This requires xdotool.

xmobarEscape :: [Char] -> [Char]
xmobarEscape = concatMap doubleLts
  where
        doubleLts '<' = "<<"
        doubleLts x   = [x]
        
myWorkspaces :: [String]   
myWorkspaces = clickable . (map xmobarEscape) 
               $ ["dev", "www", "sys", "doc", "vbox", "chat", "mus", "vid", "gfx"]
  where                                                                      
        clickable l = [ "<action=xdotool key super+" ++ show (n) ++ ">" ++ ws ++ "</action>" |
                      (i,ws) <- zip [1..9] l,                                        
                      let n = i ] 

------------------------------------------------------------------------
-- MANAGEHOOK
------------------------------------------------------------------------
-- Sets some rules for certain programs. Examples include forcing certain
-- programs to always float, or to always appear on a certain workspace.
-- Forcing programs to a certain workspace with a doShift requires xdotool
-- if you are using clickable workspaces. You need the className or title 
-- of the program. Use xprop to get this info.

myManageHook :: XMonad.Query (Data.Monoid.Endo WindowSet)
myManageHook = composeAll
     -- using 'doShift ( myWorkspaces !! 7)' sends program to workspace 8!
     -- I'm doing it this way because otherwise I would have to write out 
     -- the full name of my clickable workspaces, which would look like:
     -- doShift "<action xdotool super+8>gfx</action>"
     [ className =? "obs"     --> doShift ( myWorkspaces !! 7)
     , title =? "firefox"     --> doShift ( myWorkspaces !! 1)
     , title =? "qutebrowser" --> doShift ( myWorkspaces !! 1)
     , className =? "mpv"     --> doShift ( myWorkspaces !! 7)
     , className =? "vlc"     --> doShift ( myWorkspaces !! 7)
     , className =? "Gimp"    --> doShift ( myWorkspaces !! 8)
     , className =? "Gimp"    --> doFloat
     , title =? "Oracle VM VirtualBox Manager"     --> doFloat
     , className =? "Oracle VM VirtualBox Manager" --> doShift  ( myWorkspaces !! 6)
     , (className =? "firefox" <&&> resource =? "Dialog") --> doFloat  -- Float Firefox Dialog
     ] <+> namedScratchpadManageHook myScratchPads

------------------------------------------------------------------------
-- LAYOUTS
------------------------------------------------------------------------
-- Makes setting the spacingRaw simpler to write. The spacingRaw
-- module adds a configurable amount of space around windows.
mySpacing :: Integer -> l a -> XMonad.Layout.LayoutModifier.ModifiedLayout Spacing l a
mySpacing i = spacingRaw False (Border i i i i) True (Border i i i i) True

-- Below is a variation of the above except no borders are applied
-- if fewer than two windows. So a single window has no gaps.
mySpacing' :: Integer -> l a -> XMonad.Layout.LayoutModifier.ModifiedLayout Spacing l a
mySpacing' i = spacingRaw True (Border i i i i) True (Border i i i i) True

-- The layouts that I use
tall     = renamed [Replace "tall"]
           $ limitWindows 12
           $ mySpacing 8
           $ ResizableTall 1 (3/100) (1/2) []
monocle  = renamed [Replace "monocle"]
           $ limitWindows 20
           $ Full
floats   = renamed [Replace "floats"]
           $ limitWindows 20
           $ simplestFloat
grid     = renamed [Replace "grid"]
           $ limitWindows 12
           $ mySpacing 8
           $ mkToggle (single MIRROR)
           $ Grid (16/10)
spirals  = renamed [Replace "spirals"]
           $ mySpacing' 8
           $ spiral (6/7)
threeCol = renamed [Replace "threeCol"]
           $ limitWindows 7
           $ mySpacing' 4
           $ ThreeCol 1 (3/100) (1/2)
threeRow = renamed [Replace "threeRow"]
           $ limitWindows 7
           $ mySpacing' 4
           -- Mirror takes a layout and rotates it by 90 degrees.
           -- So we are applying Mirror to the ThreeCol layout.
           $ Mirror
           $ ThreeCol 1 (3/100) (1/2)
tabs     = renamed [Replace "tabs"]
           -- I cannot add spacing to this layout because it will
           -- add spacing between window and tabs which looks bad.
           $ tabbed shrinkText myTabConfig
  where
    myTabConfig = def { fontName            = "xft:Mononoki Nerd Font:regular:pixelsize=11"
                      , activeColor         = "#292d3e"
                      , inactiveColor       = "#3e445e"
                      , activeBorderColor   = "#292d3e"
                      , inactiveBorderColor = "#292d3e"
                      , activeTextColor     = "#ffffff"
                      , inactiveTextColor   = "#d0d0d0"
                      }
          
-- The layout hook
myLayoutHook = avoidStruts $ mouseResize $ windowArrange $ T.toggleLayouts floats $
               mkToggle (NBFULL ?? NOBORDERS ?? EOT) $ myDefaultLayout
             where
               myDefaultLayout = tall ||| noBorders monocle ||| floats ||| grid ||| noBorders tabs ||| spirals ||| threeCol ||| threeRow

------------------------------------------------------------------------
-- SCRATCHPADS
------------------------------------------------------------------------
myScratchPads :: [NamedScratchpad]
myScratchPads = [ NS "terminal" spawnTerm findTerm manageTerm
                , NS "mocp" spawnMocp findMocp manageMocp
                ]
    where
    spawnTerm  = myTerminal ++ " -n scratchpad"
    findTerm   = resource =? "scratchpad"
    manageTerm = customFloating $ W.RationalRect l t w h
                 where
                 h = 0.9
                 w = 0.9
                 t = 0.95 -h
                 l = 0.95 -w
    spawnMocp  = myTerminal ++ " -n mocp 'mocp'"
    findMocp   = resource =? "mocp"
    manageMocp = customFloating $ W.RationalRect l t w h
                 where
                 h = 0.9
                 w = 0.9
                 t = 0.95 -h
                 l = 0.95 -w

------------------------------------------------------------------------
-- MAIN
------------------------------------------------------------------------
main :: IO ()
main = do
    -- Launching three instances of xmobar on their monitors.
    xmproc0 <- spawnPipe "xmobar -x 0 /home/dt/.config/xmobar/xmobarrc0"
    xmproc1 <- spawnPipe "xmobar -x 1 /home/dt/.config/xmobar/xmobarrc2"
    xmproc2 <- spawnPipe "xmobar -x 2 /home/dt/.config/xmobar/xmobarrc1"
    -- the xmonad, ya know...what the WM is named after!
    xmonad $ ewmh def
        { manageHook = ( isFullscreen --> doFullFloat ) <+> myManageHook <+> manageDocks
        -- Run xmonad commands from command line with "xmonadctl command". Commands include:
        -- shrink, expand, next-layout, default-layout, restart-wm, xterm, kill, refresh, run,
        -- focus-up, focus-down, swap-up, swap-down, swap-master, sink, quit-wm. You can run 
        -- "xmonadctl 0" to generate full list of commands written to ~/.xsession-errors.
        , handleEventHook    = serverModeEventHookCmd 
                               <+> serverModeEventHook 
                               <+> serverModeEventHookF "XMONAD_PRINT" (io . putStrLn)
                               <+> docksEventHook
        , modMask            = myModMask
        , terminal           = myTerminal
        , startupHook        = myStartupHook
        , layoutHook         = myLayoutHook 
        , workspaces         = myWorkspaces
        , borderWidth        = myBorderWidth
        , normalBorderColor  = myNormColor
        , focusedBorderColor = myFocusColor
        , logHook = dynamicLogWithPP xmobarPP
                        { ppOutput = \x -> hPutStrLn xmproc0 x  >> hPutStrLn xmproc1 x  >> hPutStrLn xmproc2 x
                        , ppCurrent = xmobarColor "#c3e88d" "" . wrap "[" "]" -- Current workspace in xmobar
                        , ppVisible = xmobarColor "#c3e88d" ""                -- Visible but not current workspace
                        , ppHidden = xmobarColor "#82AAFF" "" . wrap "*" ""   -- Hidden workspaces in xmobar
                        , ppHiddenNoWindows = xmobarColor "#F07178" ""        -- Hidden workspaces (no windows)
                        , ppTitle = xmobarColor "#d0d0d0" "" . shorten 60     -- Title of active window in xmobar
                        , ppSep =  "<fc=#666666> | </fc>"                     -- Separators in xmobar
                        , ppUrgent = xmobarColor "#C45500" "" . wrap "!" "!"  -- Urgent workspace
                        , ppExtras  = [windowCount]                           -- # of windows current workspace
                        , ppOrder  = \(ws:l:t:ex) -> [ws,l]++ex++[t]
                        }
        } `additionalKeysP` myKeys