vanadium/xmonad: revamp layout algorithm

- Use threecol everywhere except
- chat and multimedia: use grid / accordion

nix/configurations/vanadium/home/xmonad/xmonad.hs

@@ -1,7 +1,9 @@
 {-# LANGUAGE NegativeLiterals  #-}
+{-# OPTIONS_GHC -Wno-missing-signatures #-} -- my layout is getting crazy
 
 import XMonad
 import XMonad.Actions.CopyWindow
+import XMonad.Actions.PerWorkspaceKeys
 import XMonad.Actions.Submap
 import XMonad.Actions.SwapWorkspaces
 import XMonad.Hooks.DynamicLog
@@ -12,19 +14,23 @@ import XMonad.Hooks.ManageHelpers
 import XMonad.Hooks.OnPropertyChange
 import XMonad.Hooks.RefocusLast
 import XMonad.Hooks.StatusBar
-import XMonad.Layout.FocusTracking
+import XMonad.Layout.Accordion
+import XMonad.Layout.Grid
+import XMonad.Layout.IfMax
+import XMonad.Layout.LimitWindows
+import XMonad.Layout.Maximize
 import XMonad.Layout.NoBorders
-import XMonad.Layout.Reflect
-import XMonad.Layout.Reflect.Message
+import XMonad.Layout.PerWorkspace
 import XMonad.Layout.Renamed
 import XMonad.Layout.ResizableTile
 import XMonad.Layout.Spacing
+import XMonad.Layout.ThreeColumns
+import XMonad.Layout.ToggleLayouts
 import qualified XMonad.StackSet as W
 import XMonad.Util.EZConfig
 import XMonad.Util.Hacks
 import XMonad.Util.NamedScratchpad
 import XMonad.Util.SpawnOnce
-import XMonad.Layout.Magnifier
 
 import Data.Char.Greek
 import Data.Ratio
@@ -62,14 +68,31 @@ main =
     `additionalKeys` keybinds
 
 myLayout =
-  let tallr = renamed [ Replace "Tall" ]
-              $ smartSpacingWithEdge 5
-              $ reflectMsg . reflectHoriz
-              $ ResizableTall 1 (1/10) (3/7) []
-      mag = magnifyxy 1.05 1.3 (NoMaster 3) False
-  in  avoidStruts
+    avoidStruts
   $ smartBorders
-      $ mag tallr ||| focusTracking Full
+  $ onWorkspace chatWS       (ifMaxToggle 2 grid accordion)
+  $ onWorkspace multimediaWS (ifMaxToggle 2 grid accordion)
+  -- Magifier doesn't work well with threecol's slaves
+  -- Full has the property of "only maximizing the focused one"
+  -- Maximize can have a window maximized but not focused, might be useful when programming
+  $ maximizeWithPadding 0 threecol
+  where
+    ifMaxToggle n tog l = ifMax n l (toggleLayouts tog l)
+    threecol =
+      renamed [ Replace "3Col" ]
+       $ smartSpacingWithEdge 5
+       $ ThreeColMid 1 (3/100) (1/2)
+
+    grid =
+      renamed [ Replace "Grid" ]
+      $ smartSpacingWithEdge 5
+      $ Grid
+
+    accordion =
+      renamed [ Replace "Accordion" ]
+      $ smartSpacingWithEdge 5
+      $ limitSlice 3
+      $ Accordion
 
 isSioyek :: Query Bool
 isSioyek = className =? "sioyek"
@@ -264,9 +287,6 @@ keybinds =
   , ((0, xF86XK_AudioPlay), spawn "playerctl play-pause")
   , ((0, xF86XK_AudioNext), spawn "playerctl next"      )
 
-    -- Toggle fullscreen
-  , ((superMask, xK_Escape), sendMessage NextLayout)
-
     -- Resize windows
   , ((superMask, xK_equal               ), sendMessage $ IncMasterN  1)
   , ((superMask, xK_minus               ), sendMessage $ IncMasterN -1)
@@ -274,7 +294,11 @@ keybinds =
   , ((superMask, xK_period              ), sendMessage Expand         )
   , ((superMask .|. shiftMask, xK_comma ), sendMessage MirrorShrink   )
   , ((superMask .|. shiftMask, xK_period), sendMessage MirrorExpand   )
-  , ((superMask              , xK_apostrophe), sendMessage Toggle     )
+  , ((superMask              , xK_space ), chooseAction $ \ws ->
+           if ws == chatWS       then sendMessage ToggleLayout
+      else if ws == multimediaWS then sendMessage ToggleLayout
+      else withFocused (sendMessage . maximizeRestore)
+    )
 
     -- [D]o sink and lift
   , ( (superMask, xK_d)
@@ -343,12 +367,12 @@ altMask = mod1Mask
 myWorkspaces :: [WorkspaceId]
 myWorkspaces = map (:[]) $ take 8 greekLower
 
-multimediaWS :: WorkspaceId
-multimediaWS = myWorkspaces !! 6
-
 chatWS :: WorkspaceId
 chatWS = myWorkspaces !! 3
 
+multimediaWS :: WorkspaceId
+multimediaWS = myWorkspaces !! 6
+
 centeredFloat, smallFloat, fullFloat, buttomRightFloat :: W.RationalRect
 centeredFloat    = W.RationalRect (1%9) (1%9) (7%9) (7%9)
 smallFloat       = W.RationalRect (3%5) (3%5) (2%7) (2%7)