xmonad.hs

import           XMonad
import           XMonad.Hooks.DynamicLog
import           XMonad.Hooks.EwmhDesktops      ( ewmh
                                                , fullscreenEventHook
                                                )
import           XMonad.Hooks.ManageHelpers     ( doCenterFloat
                                                , doFullFloat
                                                , isFullscreen
                                                )
import           XMonad.ManageHook
import           XMonad.Util.EZConfig
import           XMonad.Util.NamedScratchpad
import           XMonad.Util.SpawnOnce

import           XMonad.Layout.CenteredMaster
import           XMonad.Layout.NoBorders        ( noBorders
                                                , smartBorders
                                                )
import           XMonad.Layout.Renamed          ( Rename(Replace)
                                                , renamed
                                                )
import           XMonad.Layout.Spacing
import           XMonad.Layout.ToggleLayouts   as T

import qualified XMonad.StackSet               as W

import           GHC.IO.Exception               ( ExitCode(ExitSuccess) )
import           System.Exit                    ( exitSuccess )


myTerminal = "alacritty"
myBar = "xmobar ~/.xmonad/.xmobarrc"
myTray = "trayer"
myBacklitCtl = "brightnessctl"
myTrayOptions =
  "--edge bottom --align right --SetDockType true --SetPartialStrut true \
  \--expand true --transparent true --alpha 0 \
  \--tint "
    ++ "0x"
    ++ tail myNormalBorderColor -- trayer bg color
    ++ " &"
myBrowser = "brave"
myAppLauncher =
  "rofi -theme gruvbox-dark-hard -lines 12 -padding 18 -width 60 -location 0 -show drun -sidebar-mode -columns 3 -font 'Hasklug Nerd Font 12'"
myMenu =
  "dmenu_run -nf '#fbf1c7' -sf '"
    ++ myNormalBorderColor
    ++ "' -sb '"
    ++ myFocusedBorderColor
    ++ "' -fn 'Hasklug Nerd Font:size=10'"
myModMask = mod4Mask -- Win key or Super_L
myBorderWidth = 4
myNormalBorderColor = "#282828"
myFocusedBorderColor = "#98971a"

-- Scratchpads
scratchpads :: [NamedScratchpad]
scratchpads = [pad "htop", pad "pulsemixer", pad "ranger"]
 where
  command pad = myTerminal ++ " --class '" ++ pad ++ "' -e " ++ pad
  pad name = NS name (command name) (resource =? name) defaultFloating

-- Custom PP, configure it as you like. It determines what is being written to the bar.
myPP :: PP
myPP =
  xmobarPP { ppCurrent = xmobarColor myFocusedBorderColor "" . wrap "[" "]" }

myManageHook =
  composeAll
      [ appName =? "pulsemixer" --> doCenterFloat
      , appName =? "htop" --> doCenterFloat
      , appName =? "ranger" --> doCenterFloat
      , isFullscreen --> doFullFloat
      ]
    <+> namedScratchpadManageHook scratchpads

-- Keybinds
myKeys =
  -- App shortcuts
  [ ("M-b"        , spawn myBrowser)
  , ("M1-b", spawn $ myBrowser ++ " --incognito")
  , ("M1-s"       , spawn "slack")
  , ("M1-e"       , spawn "element-desktop")
  , ("M-<Return>" , spawn myTerminal)
  , ("<Print>"    , spawn "flameshot gui")
  -- Layout and Window controls
  , ("M1-<Return>", windows W.swapMaster)
  , ("M-f"        , sendMessage T.ToggleLayout)
  , ("M-q"        , kill)
  -- Scratchpads
  , ("M-S-e", namedScratchpadAction scratchpads "ranger")
  , ("M-S-t", namedScratchpadAction scratchpads "htop")
  , ("M-S-p", namedScratchpadAction scratchpads "pulsemixer")
  -- Runner shortcuts
  , ("M1-p"       , spawn myAppLauncher)
  , ("M-p"        , spawn myMenu)
  -- Restart xmonad
  , ( "M-r"
    , spawn
      "if type xmonad; then xmonad --recompile && xmonad --restart; else xmessage xmonad not in \\$PATH: \"$PATH\"; fi"
    )
  -- Audio Controls
  , ("<XF86AudioMute>", spawn "pactl set-sink-mute @DEFAULT_SINK@ toggle")
  , ( "<XF86AudioLowerVolume>"
    , spawn "pactl set-sink-volume @DEFAULT_SINK@ -10%"
    )
  , ( "<XF86AudioRaiseVolume>"
    , spawn "pactl set-sink-volume @DEFAULT_SINK@ +10%"
    )
  -- Brightness controls
  , ("<F1>", spawn $ myBacklitCtl ++ " s 1%")
  , ("<F2>", spawn $ myBacklitCtl ++ " s 10%-")
  , ("<F3>", spawn $ myBacklitCtl ++ " s 10%+")
  -- MSI keyboard backlit control
  , ("<F4>", spawn "~/.config/mybin/dm_msi_opt")
  ]

-- Autostarts startup :: X ()
myStartup = do
  spawn ("killall " ++ myTray)
  spawn ("sleep 2 && " ++ myTray ++ " " ++ myTrayOptions)
  spawnOnce "pasystray"
  spawnOnce "nm-applet"
  spawnOnce "pamac-tray"
  spawnOnce "xfce4-power-manager"
  spawnOnce "picom --experimental-backends --corner-radius 8 -o 0.0 -b"
  spawnOnce "~/.fehbg"

-- Key binding to toggle the gap for the bar.
toggleStrutsKey XConfig { XMonad.modMask = modMask } = (mod1Mask, xK_f)

-- Layout
myLayout = toggledTiled ||| toggledMirror ||| toggledCentered
 where
     -- default tiling algorithm partitions the screen into two panes
  tiled = alias "Tall" $ smartSpacingWithEdge 4 $ smartBorders $ Tall nmaster
                                                                      delta
                                                                      ratio

  full            = noBorders Full

  mirror          = alias "Mirrored" $ Mirror tiled

  -- Tiled layouts with toggles for Full mode
  toggledTiled    = T.toggleLayouts full tiled

  toggledMirror   = T.toggleLayouts full mirror

  -- Centered master layout with toggle for centered or top-right masters
  toggledCentered = alias "Centered"
    $ T.toggleLayouts (topRightMaster tiled) (centerMaster tiled)

  -- Function to rename layouts
  alias a = renamed [Replace a]

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

  -- Default proportion of screen occupied by master pane
  ratio   = 2 / 3

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


-- Main configuration
myConfig =
  def { terminal           = myTerminal
      , modMask            = myModMask
      , borderWidth        = myBorderWidth
      , manageHook         = myManageHook
      , normalBorderColor  = myNormalBorderColor
      , focusedBorderColor = myFocusedBorderColor
      , handleEventHook    = fullscreenEventHook
      , startupHook        = myStartup
      , layoutHook         = myLayout
      }
    `additionalKeysP` myKeys


main :: IO ()
main = do
  xmonad . ewmh =<< statusBar myBar myPP toggleStrutsKey myConfig