nix-config/.xmonad/xmonad.hs

--
import Data.Monoid
import Graphics.X11.ExtraTypes.XF86
import System.Exit
import System.IO (hPutStrLn)
import XMonad
import XMonad.Hooks.DynamicLog
import XMonad.Hooks.ManageDocks
import XMonad.Util.Run(spawnPipe)
import XMonad.Util.SpawnOnce
import XMonad.Hooks.EwmhDesktops

import qualified XMonad.StackSet as W
import qualified Data.Map        as M

-- The preferred terminal program, which is used in a binding below and by
-- certain contrib modules.
--
myTerminal      = "alacritty"

-- Whether focus follows the mouse pointer.
myFocusFollowsMouse :: Bool
myFocusFollowsMouse = True

-- Width of the window border in pixels.
--
myBorderWidth   = 2

-- modMask lets you specify which modkey you want to use. The default
-- is mod1Mask ("left alt").  You may also consider using mod3Mask
-- ("right alt"), which does not conflict with emacs keybindings. The
-- "windows key" is usually mod4Mask.
--
myModMask       = mod4Mask

-- NOTE: from 0.9.1 on numlock mask is set automatically. The numlockMask
-- setting should be removed from configs.
--
-- You can safely remove this even on earlier xmonad versions unless you
-- need to set it to something other than the default mod2Mask, (e.g. OSX).
--
-- The mask for the numlock key. Numlock status is "masked" from the
-- current modifier status, so the keybindings will work with numlock on or
-- off. You may need to change this on some systems.
--
-- You can find the numlock modifier by running "xmodmap" and looking for a
-- modifier with Num_Lock bound to it:
--
-- > $ xmodmap | grep Num
-- > mod2        Num_Lock (0x4d)
--
-- Set numlockMask = 0 if you don't have a numlock key, or want to treat
-- numlock status separately.
--
-- myNumlockMask   = mod2Mask -- deprecated in xmonad-0.9.1
------------------------------------------------------------


-- The default number of workspaces (virtual screens) and their names.
-- By default we use numeric strings, but any string may be used as a
-- workspace name. The number of workspaces is determined by the length
-- of this list.
--
-- A tagging example:
--
-- > workspaces = ["web", "irc", "code" ] ++ map show [4..9]
--
myWorkspaces = ["1","2","3","4","5","6","7","8","9"]

-- Border colors for unfocused and focused windows, respectively.
--
myNormalBorderColor  = "#dddddd"
myFocusedBorderColor = "#ff0000"

lockScreen = "i3lock-fancy-rapid 10 2 pixels"

------------------------------------------------------------------------
-- Key bindings. Add, modify or remove key bindings here.
--
myKeys conf@XConfig {XMonad.modMask = modm} = M.fromList $

    -- launch a terminal
    [ ((modm .|. shiftMask, xK_Return), spawn $ XMonad.terminal conf)

    -- launch dmenu
    , ((modm,               xK_p     ), spawn "rofi -show run")

    -- launch gmrun
    , ((modm .|. shiftMask, xK_p     ), spawn "gmrun")

    -- close focused window
    , ((modm .|. shiftMask, xK_c     ), kill)

    -- lock the screen
    , ((modm .|. shiftMask, xK_l     ), spawn lockScreen)

    -- suspend
    , ((modm .|. shiftMask, xK_s     ), spawn $ lockScreen ++ " && systemctl suspend")

    -- screenshot
    , ((modm              , xK_Print ), spawn "import png:- | xclip -selection clipboard -t image/png")

    -- multimedia
    , ((0, xF86XK_AudioPlay), spawn "dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.PlayPause")
    , ((0, xF86XK_AudioStop), spawn "dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.Stop")
    , ((0, xF86XK_AudioPrev), spawn "dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.Previous")
    , ((0, xF86XK_AudioNext), spawn "dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.Next")

     -- Rotate through the available layout algorithms
    , ((modm,               xK_space ), sendMessage NextLayout)

    --  Reset the layouts on the current workspace to default
    , ((modm .|. shiftMask, xK_space ), setLayout $ XMonad.layoutHook conf)

    -- Resize viewed windows to the correct size
    , ((modm,               xK_n     ), refresh)

    -- Move focus to the next window
    , ((modm,               xK_Tab   ), windows W.focusDown)

    -- Move focus to the next window
    , ((modm,               xK_j     ), windows W.focusDown)

    -- Move focus to the previous window
    , ((modm,               xK_k     ), windows W.focusUp  )

    -- Move focus to the master window
    , ((modm,               xK_m     ), windows W.focusMaster  )

    -- Swap the focused window and the master window
    , ((modm,               xK_Return), windows W.swapMaster)

    -- Swap the focused window with the next window
    , ((modm .|. shiftMask, xK_j     ), windows W.swapDown  )

    -- Swap the focused window with the previous window
    , ((modm .|. shiftMask, xK_k     ), windows W.swapUp    )

    -- Shrink the master area
    , ((modm,               xK_h     ), sendMessage Shrink)

    -- Expand the master area
    , ((modm,               xK_l     ), sendMessage Expand)

    -- Push window back into tiling
    , ((modm,               xK_t     ), withFocused $ windows . W.sink)

    -- Increment the number of windows in the master area
    , ((modm              , xK_comma ), sendMessage (IncMasterN 1))

    -- Deincrement the number of windows in the master area
    , ((modm              , xK_period), sendMessage (IncMasterN (-1)))

    -- Toggle the status bar gap
    -- Use this binding with avoidStruts from Hooks.ManageDocks.
    -- See also the statusBar function from Hooks.DynamicLog.
    --
    -- , ((modm              , xK_b     ), sendMessage ToggleStruts)

    -- Quit xmonad
    , ((modm .|. shiftMask, xK_q     ), io exitSuccess)

    -- Restart xmonad
    , ((modm              , xK_q     ), spawn "xmonad --recompile; xmonad --restart")
    ]
    ++

    --
    -- mod-[1..9], Switch to workspace N
    --
    -- mod-[1..9], Switch to workspace N
    -- mod-shift-[1..9], Move client to workspace N
    --
    [((m .|. modm, k), windows $ f i)
        | (i, k) <- zip (XMonad.workspaces conf) [xK_1 .. xK_9]
        , (f, m) <- [(W.greedyView, 0), (W.shift, shiftMask)]]
    ++

    --
    -- mod-{w,e,r}, Switch to physical/Xinerama screens 1, 2, or 3
    -- mod-shift-{w,e,r}, Move client to screen 1, 2, or 3
    --
    [((m .|. modm, key), screenWorkspace sc >>= flip whenJust (windows . f))
        | (key, sc) <- zip [xK_w, xK_e, xK_r] [0..]
        , (f, m) <- [(W.view, 0), (W.shift, shiftMask)]]


------------------------------------------------------------------------
-- Mouse bindings: default actions bound to mouse events
--
myMouseBindings XConfig {XMonad.modMask = modm} = M.fromList

    -- mod-button1, Set the window to floating mode and move by dragging
    [ ((modm, button1), \w -> focus w >> mouseMoveWindow w
                                       >> windows W.shiftMaster)

    -- mod-button2, Raise the window to the top of the stack
    , ((modm, button2), \w -> focus w >> windows W.shiftMaster)

    -- mod-button3, Set the window to floating mode and resize by dragging
    , ((modm, button3), \w -> focus w >> mouseResizeWindow w
                                       >> windows W.shiftMaster)

    -- you may also bind events to the mouse scroll wheel (button4 and button5)
    ]

------------------------------------------------------------------------
-- Layouts:

-- You can specify and transform your layouts by modifying these values.
-- If you change layout bindings be sure to use 'mod-shift-space' after
-- restarting (with 'mod-q') to reset your layout state to the new
-- defaults, as xmonad preserves your old layout settings by default.
--
-- The available layouts.  Note that each layout is separated by |||,
-- which denotes layout choice.
--
myLayout = avoidStruts (tiled ||| Mirror tiled ||| Full)
  where
    -- default tiling algorithm partitions the screen into two panes
    tiled   = Tall nmaster delta ratio

    -- The default number of windows in the master pane
    nmaster = 1

    -- Default proportion of screen occupied by master pane
    ratio   = 1/2

    -- Percent of screen to increment by when resizing panes
    delta   = 3/100

------------------------------------------------------------------------
-- Window rules:

-- Execute arbitrary actions and WindowSet manipulations when managing
-- a new window. You can use this to, for example, always float a
-- particular program, or have a client always appear on a particular
-- workspace.
--
-- To find the property name associated with a program, use
-- > xprop | grep WM_CLASS
-- and click on the client you're interested in.
--
-- To match on the WM_NAME, you can use 'title' in the same way that
-- 'className' and 'resource' are used below.
--
myManageHook = composeAll
    [ className =? "Gimp"           --> doFloat
    , resource  =? "desktop_window" --> doIgnore
    , resource  =? "kdesktop"       --> doIgnore ]

------------------------------------------------------------------------
-- Event handling

-- Defines a custom handler function for X Events. The function should
-- return (All True) if the default handler is to be run afterwards. To
-- combine event hooks use mappend or mconcat from Data.Monoid.
--
-- * NOTE: EwmhDesktops users should use the 'ewmh' function from
-- XMonad.Hooks.EwmhDesktops to modify their defaultConfig as a whole.
-- It will add EWMH event handling to your custom event hooks by
-- combining them with ewmhDesktopsEventHook.
--
myEventHook = docksEventHook <+> handleEventHook def <+> fullscreenEventHook

------------------------------------------------------------------------
-- Status bars and logging

-- Perform an arbitrary action on each internal state change or X event.
-- See the 'XMonad.Hooks.DynamicLog' extension for examples.
--
--
-- * NOTE: EwmhDesktops users should use the 'ewmh' function from
-- XMonad.Hooks.EwmhDesktops to modify their defaultConfig as a whole.
-- It will add EWMH logHook actions to your custom log hook by
-- combining it with ewmhDesktopsLogHook.
--
myLogHook h = dynamicLogWithPP $ xmobarPP
    { ppOutput = hPutStrLn h
    , ppCurrent = xmobarColor "yellow" "" . wrap "[" "]"
    , ppTitle   = xmobarColor "grey"  "" . shorten 80
    , ppVisible = wrap "(" ")"
    , ppUrgent  = xmobarColor "red" "yellow"
    , ppWsSep   = " "
    , ppOrder   = \(ws:l:t:_) -> [ws,t]
    }

------------------------------------------------------------------------
-- Startup hook

-- Perform an arbitrary action each time xmonad starts or is restarted
-- with mod-q.  Used by, e.g., XMonad.Layout.PerWorkspace to initialize
-- per-workspace layout choices.
--
-- By default, do nothing.
--
-- * NOTE: EwmhDesktops users should use the 'ewmh' function from
-- XMonad.Hooks.EwmhDesktops to modify their defaultConfig as a whole.
-- It will add initialization of EWMH support to your custom startup
-- hook by combining it with ewmhDesktopsStartup.
--
myStartupHook = do
  spawnOnce "dunst &"
  spawnOnce "feh --bg-fill ~/Pictures/Wallpapers/laughingman.jpg"
  spawnOnce "if xinput list | grep -qi 'mouse'; then xmodmap -e 'pointer = 3 2 1 ';fi" -- flip mouse buttons
  spawnOnce "picom --config ~/.config/compton.conf -b"
  spawnOnce "stalonetray &"

------------------------------------------------------------------------
-- Now run xmonad with all the defaults we set up.

-- Run xmonad with the settings you specify. No need to modify this.
--
main = do
  xmproc <- spawnPipe "LC_ALL=C.UTF-8 xmobar -x 1 ~/.config/xmobar/xmobar.hs"
  xmonad $ ewmh $ docks defaultConfig {
      -- simple stuff
        terminal           = myTerminal,
        focusFollowsMouse  = myFocusFollowsMouse,
        borderWidth        = myBorderWidth,
        modMask            = myModMask,
        workspaces         = myWorkspaces,
        normalBorderColor  = myNormalBorderColor,
        focusedBorderColor = myFocusedBorderColor,

      -- key bindings
        keys               = myKeys,
        mouseBindings      = myMouseBindings,

      -- hooks, layouts
        layoutHook         = myLayout,
        manageHook         = myManageHook,
        handleEventHook    = myEventHook,
        logHook            = myLogHook xmproc,
        startupHook        = myStartupHook
    }