Confirmation prompt not appearing

[rainer2208]

I am on Arch Linux and trying my first xmonad setup. I have prior experience with i3, leftwm and AwesomeWm. I love window managers.

I am just getting started with xmonad and have added the following code to my xmonad.hs config file :

import XMonad.Prompt.ConfirmPrompt
mykeys ....
((modm , xK_l), confirmPrompt defaultXPConfig "exit" $ io (exitWith ExitSuccess))

According to the documentation, this should produce a confirmation message or dialogue. But it does not.

I have installed all xmonad packages I could find in the package manager, but to no avail.

Any hints?

[slotThe]

import XMonad.Prompt.ConfirmPrompt mhkeys .... ((modm , xK_l), confirmPrompt defaultXPConfig "exit" $ io (exitWith ExitSuccess))

Works for me. Well, what does work is binding confirmPrompt def "exit" $ io (exitWith ExitSuccess) since `defaultXPConfig` was remove a while ago (though this shouldn't be a problem if you're running an older version of XMonad). - Are you getting any errors upon entering `xmonad --recompile` in a terminal? If yes, perhaps you haven't installed `xmessage`, which should otherwise show you those errors on M-q. - Maybe you don't have the required bitmap fonts installed (this was fixed around the same time as the removal of the `def*` stuff, so perhaps you are hit with it). In that case either try installing those, or changing the font that the prompt uses.

According to the documentation, this should produce a confirmation message or dialogue. But it does not.

Also not that it produces a prompt, which is not as visible as a message in the centre of the screen (at least, by default); careful that you haven't just missed it!

[rainer2208]

Cool, haven't tried the recompile command, very useful ..

There are indeed a few errors, even after changing the code to confirmPrompt def "exit" $ io (exitWith ExitSuccess) and installing 'xmessage'

xmonad.hs:160:7: error:
    • Couldn't match expected type: ((KeyMask, KeySym), X ())
                  with actual type: (KeyMask, KeySym, X ())
    • In the expression:
        (modMask .|. shiftMask, xK_y, 
         confirmPrompt def "exit" $ io (exitWith ExitSuccess))
      In the first argument of ‘(++)’, namely
        ‘[((modMask, xK_Return), spawn myTerminal),
          ((modMask, xK_d), 
           spawn "exe=`dmenu_path | dmenu` && eval \"exec $exe\""),
          ((modMask, xK_i), spawn myBrowser),
          ((modMask, xK_F12), spawn "rofi -show drun"), ....]’
      In the second argument of ‘($)’, namely
        ‘[((modMask, xK_Return), spawn myTerminal),
          ((modMask, xK_d), 
           spawn "exe=`dmenu_path | dmenu` && eval \"exec $exe\""),
          ((modMask, xK_i), spawn myBrowser),
          ((modMask, xK_F12), spawn "rofi -show drun"), ....]
           ++
             [((m .|. modMask, k), windows $ f i) |
                (i, k) <- zip (XMonad.workspaces conf) [xK_1 .. xK_9],
                (f, m) <- [(W.greedyView, 0), (W.shift, shiftMask)]]
               ++
                 [((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)]]’
    |
160 |     , (modMask .|. shiftMask, xK_y,  confirmPrompt def "exit" $ io (exitWith ExitSuccess))
    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Please check the file for errors.

Warning: Missing charsets in String to FontSet conversion                   
Warning: Cannot convert string "-*-fixed-medium-r-normal-*-18-*-*-*-*-*-*-*,-*-fixed-*-*-*-*-18-*-*-*-*-*-*-*,-*-*-*-*-*-*-18-*-*-*-*-*-*-*" to type FontSet
 ~ ▓▒░ Warning: Missing charsets in String to FontSet conversiont 12:24:36 
 ~ ▓▒░          

[geekosaur]

The error is telling you that (a,b,c) and ((a,b),c) are two different things.

The warning is the font issue @slotThe mentioned; but since xmonad didn't recompile successfully, it's probably from xmessage.

[rainer2208]

I actually used the code that was provided ...

How do I get around the error ?

[geekosaur]

The code you initially showed was

((modm , xK_l), confirmPrompt defaultXPConfig "exit" $ io (exitWith ExitSuccess))

which is correct. The code the error message shows is

(modMask .|. shiftMask, xK_y, confirmPrompt def "exit" $ io (exitWith ExitSuccess))

which is wrong (it's a 3-tuple instead of a nested tuple). Use the first one.

[rainer2208]

many thanks for all the inputs, guys, I can't imagine the necessary to actually build xmonad..

That is the line that actually solved it, besides installing xmessage:

, ((modMask .|. shiftMask , xK_y ), confirmPrompt def "exit" $ io exitSuccess)

[slotThe]

I can't imagine the necessary to actually build xmonad..

Well, your `xmonad.hs` is less of a config file, and more of an entry point to the program—you are writing your own `main` function, after all! Btw, if you haven't yet, I recommend you check out the official tutorial https://xmonad.org/TUTORIAL.html

[rainer2208]

will do ....