content: -- xmonad config used by Malcolm MD
  -- https://github.com/randomthought/xmonad-config
  
  import System.IO
  import System.Exit
  -- import System.Taffybar.Hooks.PagerHints (pagerHints)
  
  import qualified Data.List as L
  
  import XMonad
  import XMonad.Actions.Navigation2D
  import XMonad.Actions.UpdatePointer
  
  import XMonad.Hooks.DynamicLog
  import XMonad.Hooks.ManageDocks
  import XMonad.Hooks.ManageHelpers
  import XMonad.Hooks.SetWMName
  import XMonad.Hooks.EwmhDesktops (ewmh)
  
  import XMonad.Layout.Gaps
  import XMonad.Layout.Fullscreen
  import XMonad.Layout.BinarySpacePartition as BSP
  import XMonad.Layout.NoBorders
  import XMonad.Layout.Tabbed
  import XMonad.Layout.ThreeColumns
  import XMonad.Layout.Spacing
  import XMonad.Layout.MultiToggle
  import XMonad.Layout.MultiToggle.Instances
  import XMonad.Layout.NoFrillsDecoration
  import XMonad.Layout.Renamed
  import XMonad.Layout.Simplest
  import XMonad.Layout.SubLayouts
  import XMonad.Layout.WindowNavigation
  import XMonad.Layout.ZoomRow
  
  import XMonad.Util.Run(spawnPipe)
  import XMonad.Util.EZConfig(additionalKeys)
  import XMonad.Util.Cursor
  
  import Graphics.X11.ExtraTypes.XF86
  import qualified XMonad.StackSet as W
  import qualified Data.Map        as M
  
  
  ----------------------------mupdf--------------------------------------------
  -- Terminimport XMonad.Hooks.EwmhDesktopsal
  -- The preferred terminal program, which is used in a binding below and by
  -- certain contrib modules.
  --
  myTerminal = "termite"
  
  -- The command to lock the screen or show the screensaver.
  myScreensaver = "dm-tool switch-to-greeter"
  
  -- The command to take a selective screenshot, where you select
  -- what you'd like to capture on the screen.
  mySelectScreenshot = "select-screenshot"
  
  -- The command to take a fullscreen screenshot.
  myScreenshot = "xfce4-screenshooter"
  
  -- The command to use as a launcher, to launch commands that don't have
  -- preset keybindings.
  myLauncher = "rofi -show"
  
  
  
  ------------------------------------------------------------------------
  -- Workspaces
  -- The default number of workspaces (virtual screens) and their names.
  --
  myWorkspaces = ["1: term","2: web","3: code","4: media"] ++ map show [5..9]
  
  
  ------------------------------------------------------------------------
  -- 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 =? "Google-chrome"                --> doShift "2:web"
      , resource  =? "desktop_window"               --> doIgnore
      , className =? "Galculator"                   --> doCenterFloat
      , className =? "Steam"                        --> doCenterFloat
      , className =? "Gimp"                         --> doCenterFloat
      , resource  =? "gpicview"                     --> doCenterFloat
      , className =? "MPlayer"                      --> doCenterFloat
      , className =? "Pavucontrol"                  --> doCenterFloat
      , className =? "Mate-power-preferences"       --> doCenterFloat
      , className =? "Xfce4-power-manager-settings" --> doCenterFloat
      , className =? "VirtualBox"                   --> doShift "4:vm"
      , className =? "Xchat"                        --> doShift "5:media"
      , className =? "stalonetray"                  --> doIgnore
      , isFullscreen                                --> (doF W.focusDown <+> doFullFloat)
      -- , isFullscreen                             --> doFullFloat
      ]
  
  
  
  ------------------------------------------------------------------------
  -- 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.
  
  outerGaps    = 10
  myGaps       = gaps [(U, outerGaps), (R, outerGaps), (L, outerGaps), (D, outerGaps)]
  addSpace     = renamed [CutWordsLeft 2] . spacing gap
  tab          =  avoidStruts
                 $ renamed [Replace "Tabbed"]
                 $ addTopBar
                 $ myGaps
                 $ tabbed shrinkText myTabTheme
  
  layouts      = avoidStruts (
                  (
                      renamed [CutWordsLeft 1]
                    $ addTopBar
                    $ windowNavigation
                    $ renamed [Replace "BSP"]
                    $ addTabs shrinkText myTabTheme
                    $ subLayout [] Simplest
                    $ myGaps
                    $ addSpace (BSP.emptyBSP)
                  )
                  ||| tab
                 )
  
  myLayout    = smartBorders
                $ mkToggle (NOBORDERS ?? FULL ?? EOT)
                $ layouts
  
  myNav2DConf = def
      { defaultTiledNavigation    = centerNavigation
      , floatNavigation           = centerNavigation
      , screenNavigation          = lineNavigation
      , layoutNavigation          = [("Full",          centerNavigation)
      -- line/center same results   ,("Tabs", lineNavigation)
      --                            ,("Tabs", centerNavigation)
                                    ]
      , unmappedWindowRect        = [("Full", singleWindowRect)
      -- works but breaks tab deco  ,("Tabs", singleWindowRect)
      -- doesn't work but deco ok   ,("Tabs", fullScreenRect)
                                    ]
      }
  
  
  ------------------------------------------------------------------------
  -- Colors and borders
  
  -- Color of current window title in xmobar.
  xmobarTitleColor = "#C678DD"
  
  -- Color of current workspace in xmobar.
  xmobarCurrentWorkspaceColor = "#51AFEF"
  
  -- Width of the window border in pixels.
  myBorderWidth = 0
  
  myNormalBorderColor     = "#000000"
  myFocusedBorderColor    = active
  
  base03  = "#002b36"
  base02  = "#073642"
  base01  = "#586e75"
  base00  = "#657b83"
  base0   = "#839496"
  base1   = "#93a1a1"
  base2   = "#eee8d5"
  base3   = "#fdf6e3"
  yellow  = "#b58900"
  orange  = "#cb4b16"
  red     = "#dc322f"
  magenta = "#d33682"
  violet  = "#6c71c4"
  blue    = "#268bd2"
  cyan    = "#2aa198"
  green   = "#859900"
  
  -- sizes
  gap         = 10
  topbar      = 10
  border      = 0
  prompt      = 20
  status      = 20
  
  active      = blue
  activeWarn  = red
  inactive    = base02
  focusColor  = blue
  unfocusColor = base02
  
  -- myFont      = "-*-Zekton-medium-*-*-*-*-160-*-*-*-*-*-*"
  -- myBigFont   = "-*-Zekton-medium-*-*-*-*-240-*-*-*-*-*-*"
  myFont      = "xft:Zekton:size=9:bold:antialias=true"
  myBigFont   = "xft:Zekton:size=9:bold:antialias=true"
  myWideFont  = "xft:Eurostar Black Extended:"
              ++ "style=Regular:pixelsize=180:hinting=true"
  
  -- this is a "fake title" used as a highlight bar in lieu of full borders
  -- (I find this a cleaner and less visually intrusive solution)
  topBarTheme = def
      {
        fontName              = myFont
      , inactiveBorderColor   = base03
      , inactiveColor         = base03
      , inactiveTextColor     = base03
      , activeBorderColor     = active
      , activeColor           = active
      , activeTextColor       = active
      , urgentBorderColor     = red
      , urgentTextColor       = yellow
      , decoHeight            = topbar
      }
  
  addTopBar =  noFrillsDeco shrinkText topBarTheme
  
  myTabTheme = def
      { fontName              = myFont
      , activeColor           = active
      , inactiveColor         = base02
      , activeBorderColor     = active
      , inactiveBorderColor   = base02
      , activeTextColor       = base03
      , inactiveTextColor     = base00
      }
  
  ------------------------------------------------------------------------
  -- Key bindings
  --
  -- 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
  altMask = mod1Mask
  
  myKeys conf@(XConfig {XMonad.modMask = modMask}) = M.fromList $
    ----------------------------------------------------------------------
    -- Custom key bindings
    --
  
    -- Start a terminal.  Terminal to start is specified by myTerminal variable.
    [ ((modMask .|. shiftMask, xK_Return),
       spawn $ XMonad.terminal conf)
  
    -- Lock the screen using command specified by myScreensaver.
    , ((modMask, xK_0),
       spawn myScreensaver)
  
    -- Spawn the launcher using command specified by myLauncher.
    -- Use this to launch programs without a key binding.
    , ((modMask, xK_p),
       spawn myLauncher)
  
    -- Take a selective screenshot using the command specified by mySelectScreenshot.
    , ((modMask .|. shiftMask, xK_p),
       spawn mySelectScreenshot)
  
    -- Take a full screenshot using the command specified by myScreenshot.
    , ((modMask .|. controlMask .|. shiftMask, xK_p),
       spawn myScreenshot)
  
    -- Toggle current focus window to fullscreen
    , ((modMask, xK_f), sendMessage $ Toggle FULL)
  
    -- Mute volume.
    , ((0, xF86XK_AudioMute),
       spawn "amixer -q set Master toggle")
  
    -- Decrease volume.
    , ((0, xF86XK_AudioLowerVolume),
       spawn "amixer -q set Master 5%-")
  
    -- Increase volume.
    , ((0, xF86XK_AudioRaiseVolume),
       spawn "amixer -q set Master 5%+")
  
    -- Audio previous.
    , ((0, 0x1008FF16),
       spawn "")
  
    -- Play/pause.
    , ((0, 0x1008FF14),
       spawn "")
  
    -- Audio next.
    , ((0, 0x1008FF17),
       spawn "")
  
    -- Eject CD tray.
    , ((0, 0x1008FF2C),
       spawn "eject -T")
  
    --------------------------------------------------------------------
    -- "Standard" xmonad key bindings
    --
  
    -- Close focused window.
    , ((modMask .|. shiftMask, xK_c),
       kill)
  
    -- Cycle through the available layout algorithms.
    , ((modMask, xK_space),
       sendMessage NextLayout)
  
    --  Reset the layouts on the current workspace to default.
    , ((modMask .|. shiftMask, xK_space),
       setLayout $ XMonad.layoutHook conf)
  
    -- Resize viewed windows to the correct size.
    , ((modMask, xK_n),
       refresh)
  
    -- Move focus to the next window.
    , ((modMask, xK_j),
       windows W.focusDown)
  
    -- Move focus to the previous window.
    , ((modMask, xK_k),
       windows W.focusUp  )
  
    -- Move focus to the master window.
    , ((modMask, xK_m),
       windows W.focusMaster  )
  
    -- Swap the focused window and the master window.
    , ((modMask, xK_Return),
       windows W.swapMaster)
  
    -- Swap the focused window with the next window.
    , ((modMask .|. shiftMask, xK_j),
       windows W.swapDown  )
  
    -- Swap the focused window with the previous window.
    , ((modMask .|. shiftMask, xK_k),
       windows W.swapUp    )
  
    -- Shrink the master area.
    , ((modMask, xK_h),
       sendMessage Shrink)
  
    -- Expand the master area.
    , ((modMask, xK_l),
       sendMessage Expand)
  
    -- Push window back into tiling.
    , ((modMask, xK_t),
       withFocused $ windows . W.sink)
  
    -- Increment the number of windows in the master area.
    , ((modMask, xK_comma),
       sendMessage (IncMasterN 1))
  
    -- Decrement the number of windows in the master area.
    , ((modMask, xK_period),
       sendMessage (IncMasterN (-1)))
  
    -- Toggle the status bar gap.
    -- TODO: update this binding with avoidStruts, ((modMask, xK_b),
  
    -- Quit xmonad.
    , ((modMask .|. shiftMask, xK_q),
       io (exitWith ExitSuccess))
  
    -- Restart xmonad.
    , ((modMask, xK_q),
       restart "xmonad" True)
    ]
    ++
  
    -- mod-[1..9], Switch to workspace N
    -- mod-shift-[1..9], Move client to workspace N
    [((m .|. modMask, 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 .|. modMask, 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)]]
  
  
    ++
    -- Bindings for manage sub tabs in layouts please checkout the link below for reference
    -- https://hackage.haskell.org/package/xmonad-contrib-0.13/docs/XMonad-Layout-SubLayouts.html
    [
      -- Tab current focused window with the window to the left
      ((modMask .|. controlMask, xK_h), sendMessage $ pullGroup L)
      -- Tab current focused window with the window to the right
    , ((modMask .|. controlMask, xK_l), sendMessage $ pullGroup R)
      -- Tab current focused window with the window above
    , ((modMask .|. controlMask, xK_k), sendMessage $ pullGroup U)
      -- Tab current focused window with the window below
    , ((modMask .|. controlMask, xK_j), sendMessage $ pullGroup D)
  
    -- Tab all windows in the current workspace with current window as the focus
    , ((modMask .|. controlMask, xK_m), withFocused (sendMessage . MergeAll))
    -- Group the current tabbed windows
    , ((modMask .|. controlMask, xK_u), withFocused (sendMessage . UnMerge))
  
    -- Toggle through tabes from the right
    , ((modMask, xK_Tab), onGroup W.focusDown')
    ]
  
    ++
    -- Some bindings for BinarySpacePartition
    -- https://github.com/benweitzman/BinarySpacePartition
    [
      ((modMask .|. controlMask,               xK_Right ), sendMessage $ ExpandTowards R)
    , ((modMask .|. controlMask .|. shiftMask, xK_Right ), sendMessage $ ShrinkFrom R)
    , ((modMask .|. controlMask,               xK_Left  ), sendMessage $ ExpandTowards L)
    , ((modMask .|. controlMask .|. shiftMask, xK_Left  ), sendMessage $ ShrinkFrom L)
    , ((modMask .|. controlMask,               xK_Down  ), sendMessage $ ExpandTowards D)
    , ((modMask .|. controlMask .|. shiftMask, xK_Down  ), sendMessage $ ShrinkFrom D)
    , ((modMask .|. controlMask,               xK_Up    ), sendMessage $ ExpandTowards U)
    , ((modMask .|. controlMask .|. shiftMask, xK_Up    ), sendMessage $ ShrinkFrom U)
    , ((modMask,                               xK_r     ), sendMessage BSP.Rotate)
    , ((modMask,                               xK_s     ), sendMessage BSP.Swap)
    -- , ((modMask,                               xK_n     ), sendMessage BSP.FocusParent)
    -- , ((modMask .|. controlMask,               xK_n     ), sendMessage BSP.SelectNode)
    -- , ((modMask .|. shiftMask,                 xK_n     ), sendMessage BSP.MoveNode)
    ]
  
  ------------------------------------------------------------------------
  -- Mouse bindings
  --
  -- Focus rules
  -- True if your focus should follow your mouse cursor.
  myFocusFollowsMouse :: Bool
  myFocusFollowsMouse = True
  
  myMouseBindings (XConfig {XMonad.modMask = modMask}) = M.fromList $
    [
      -- mod-button1, Set the window to floating mode and move by dragging
      ((modMask, button1),
       (\w -> focus w >> mouseMoveWindow w))
  
      -- mod-button2, Raise the window to the top of the stack
      , ((modMask, button2),
         (\w -> focus w >> windows W.swapMaster))
  
      -- mod-button3, Set the window to floating mode and resize by dragging
      , ((modMask, button3),
         (\w -> focus w >> mouseResizeWindow w))
  
      -- you may also bind events to the mouse scroll wheel (button4 and button5)
    ]
  
  
  ------------------------------------------------------------------------
  -- Status bars and logging
  -- Perform an arbitrary action on each internal state change or X event.
  -- See the 'DynamicLog' extension for examples.
  --
  -- To emulate dwm's status bar
  --
  -- > logHook = dynamicLogDzen
  --
  
  
  ------------------------------------------------------------------------
  -- 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.
  myStartupHook = do
    setWMName "LG3D"
    spawn     "bash ~/.xmonad/startup.sh"
    setDefaultCursor xC_left_ptr
  
  
  ------------------------------------------------------------------------
  -- Run xmonad with all the defaults we set up.
  --
  main = do
    xmproc <- spawnPipe "xmobar ~/.xmonad/xmobarrc.hs"
    -- xmproc <- spawnPipe "taffybar"
    xmonad $ docks
           $ withNavigation2DConfig myNav2DConf
           $ additionalNav2DKeys (xK_Up, xK_Left, xK_Down, xK_Right)
                                 [
                                    (mod4Mask,               windowGo  )
                                  , (mod4Mask .|. shiftMask, windowSwap)
                                 ]
                                 False
           $ ewmh
           -- $ pagerHints -- uncomment to use taffybar
           $ defaults {
           logHook = dynamicLogWithPP xmobarPP {
                    ppCurrent = xmobarColor xmobarCurrentWorkspaceColor "" . wrap "[" "]"
                  , ppTitle = xmobarColor xmobarTitleColor "" . shorten 50
                  , ppSep = "   "
                  , ppOutput = hPutStrLn xmproc
           } >> updatePointer (0.75, 0.75) (0.75, 0.75)
        }
  
  ------------------------------------------------------------------------
  -- Combine it all together
  -- A structure containing your configuration settings, overriding
  -- fields in the default config. Any you don't override, will
  -- use the defaults defined in xmonad/XMonad/Config.hs
  --
  -- No need to modify this.
  --
  defaults = def {
      -- 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,
      -- handleEventHook    = E.fullscreenEventHook,
      handleEventHook    = fullscreenEventHook,
      manageHook         = manageDocks <+> myManageHook,
      startupHook        = myStartupHook
  }
  