Re: completing-read does not display options in new frames

[Platon Pronko <platon7pronko@gmail.com>]

On 2023-04-30 17:44, MaGelan wrote:
> Hi,
> 
> This is the first time I post on newsgroups so please forgive me if I
> am overlooking something and let me know if I break rules.
> 
> I have been using Emacs for a year now and I am starting to integrate it
> more and more in my workflow. I am still learning elisp so please bear
> with me because I have a programming issue.
> 
> I do not understand how to make the completing-read function work
> properly in a new frame. Whenever I start completing-read in a new frame
> what happens is that I do not see the options right away. I have to
> either press SPC or a input a character and delete it in order to force
> the refresh of the minibuffer and display the options. Here is an
> example that should work on any configuration:
> 
> 
> (defun test-miniframe-completing-read ()
>      "Test miniframe completing read"
>      (interactive)
>      (with-selected-frame (make-frame '((name . "emacs-miniframe")
>      (minibuffer . only)
>      (width . 120)
>      (height . 33)))
>      (unwind-protect
>          (let ((choices '("first" "second" "third")))
>              (completing-read "Select: " choices))
>          (delete-frame))))
> 
> (test-miniframe-completing-read)
> 
> 
> I am using consult/vertico/orderless framework but my understanding is
> that the completing-read is an independent function. I did notice though
> that the consult-buffer when started with:
> 
> emacsclient -c -e '(consult-buffer)'
> 
> has the same problem. The buffer selection is not shown right away.
> 
> I tried to use C-h f and inspect the function but, apparently, it is a C
> function. So, I do not know how to proceed further here. How do I make
> this code work properly both in new frames and in the existing one?
> 
> Thank you very much for any help!
> 

Hi!

Your test function works for me, choices are shown immediately. Can you provide more details? (your Emacs version, OS used)

Try starting your emacs in "clean" mode:

emacs -Q -l test.el

(test.el contains the minimized setups code, i.e. relevant parts of init.el and test-miniframe-completing-read defun)

This way it will be possible to get a reproducible test case.


I suspect the issue is there's some error or warning, in which case there's a message shown in one of minibuffers for couple seconds, and that delays completing-read.

-- 
Best regards,
Platon Pronko
PGP 2A62D77A7A2CB94E