GNU bug report logs - #59208
29.0.50; tab-bar-auto-width plus display space cpu spin

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Message #11 received at 59208 <at> debbugs.gnu.org (full text, mbox):

From: Aaron Jensen <aaronjensen <at> gmail.com>
To: Juri Linkov <juri <at> linkov.net>
Cc: 59208 <at> debbugs.gnu.org
Subject: Re: bug#59208: 29.0.50; tab-bar-auto-width plus display space cpu spin
Date: Sat, 12 Nov 2022 11:39:23 -0800

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 Apologies for top posting, on my phone. I should note that my actual tab
function has text as well (the tab name) and then I add a space at the end.
The spaces are just visual padding.


Aaron

On Sat, Nov 12 2022 at 1:33 PM, Juri Linkov <juri <at> linkov.net> wrote:

> My tab-bar-tab-name-format-function causes 100% cpu spin as of ca3763af5c.
> Disabling tab-bar-auto-width fixes it.
>
> >
>
> To repro: emacs -Q -l repro.el
>
> >
>
> repro.el:
>
> >
>
> (defun aj/tab-bar-tab-name-format (tab i)
> (propertize
> (propertize " " 'display '(space :width (8)))
> 'face (funcall tab-bar-tab-face-function tab)))
>
> >
>
> (setq tab-bar-tab-name-format-function #'aj/tab-bar-tab-name-format)
>
> >
>
> (tab-bar-mode)
>
> Thanks for the bug report. Since with
> (propertize " " 'display '(space :width (8))) the tab width can't grow
> more than 8 pixels,
> a possible fix would be on every iteration
> that adds more spaces to the tab name
> to check if the tab width remains the same.
>

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