Re: [xmonad] don't manage windows layout

11 Jun 2023


      You're not actually using `myLayoutHook`, so the compiler can't
determine the type of its layout. See line 34.

On Sun, Jun 11, 2023 at 6:43 PM Alain Bertrand  wrote:
...
Thanks.
I got the following error and though the message is really detailed, my
total ignorance of Haskel doesn't allow me to fix it.
Best regards
Alain
-------------------
Error detected while loading xmonad configuration file:
/home/alain/.xmonad/xmonad.hs
xmonad.hs:26:17: error:
     * Ambiguous type variable `a0` arising from a use of `avoidStruts`
       prevents the constraint `(Show a0)` from being solved.
       Relevant bindings include
         myLayoutHook :: XMonad.Layout.LayoutModifier.ModifiedLayout
                           AvoidStruts
                           (Choose
                              Full
                              (Choose
                                 SpiralWithDir
                                 (Choose
                                    Tall
(XMonad.Layout.LayoutModifier.ModifiedLayout
XMonad.Layout.WindowArranger.WindowArranger SimplestFloat))))
                           a0
           (bound at xmonad.hs:26:2)
       Probable fix: use a type annotation to specify what `a0` should be.
       These potential instances exist:
         instance Show Event -- Defined in `Graphics.X11.Xlib.Extras`
         instance Show FontSet -- Defined in `Graphics.X11.Xlib.Extras`
         instance [safe] Show Arc -- Defined in `Graphics.X11.Xlib.Types`
         ...plus 54 others
         ...plus 73 instances involving out-of-scope types
         (use -fprint-potential-instances to see them all)
     * In the expression:
         avoidStruts
           (Full ||| spiral (6 / 7) ||| Tall 1 0.03 0.5 ||| simplestFloat)
       In an equation for `myLayoutHook`:
           myLayoutHook
             = avoidStruts
                 (Full ||| spiral (6 / 7) ||| Tall 1 0.03 0.5 |||
simplestFloat)
    |
26 |  myLayoutHook = avoidStruts  ( Full ||| spiral (6/7)  ||| Tall 1
0.03 0.5 ||| simplestFloat)
    |
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-------------------
On 12/06/2023 00:25, Brandon Allbery wrote:
...
You might want XMonad.Layout.SimplestFloat.

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-- 
brandon s allbery kf8nh
allbery.b@gmail.com