bug#69941: 30.0.50; Faulty fontification of radio button widgets

[Stephen Berman via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

On Thu, 18 Apr 2024 15:38:33 +0200 Stephen Berman <stephen.berman@gmx.net> wrote:

> On Thu, 18 Apr 2024 14:33:57 +0300 Eli Zaretskii <eliz@gnu.org> wrote:
>
>>> Date: Thu, 18 Apr 2024 07:18:29 -0300
>>> Cc: Eli Zaretskii <eliz@gnu.org>, 69941@debbugs.gnu.org,
>>>  Stefan Monnier <monnier@iro.umontreal.ca>
>>> From: Mauro Aranda <maurooaranda@gmail.com>
>>> 
>>>  > To fix this bug, do you have a preference between this patch for
>>>  > widget-specify-inactive and the attached patch for
>>>  > widget-default-create?  Or do you have a better fix?
>>>  >
>>>  > Steve Berman
>>> 
>>> I don't really have a better fix.  I mean, ideally, we'd find the reason
>>> why the setting behaves differently for the radio-button-choice widget,
>>> and only for the first one in a radio widget, as it seems to me. But
>>> I'll need more time to be able to look into that.
>>> 
>>> That said, if Eli is OK with installing a minor hack (with a FIXME,
>>> please), I don't have problems.  And since it's a hack (and hopefully
>>> temporary), it's better if we keep it at widget-default-create then.
>>
>> My opinion doesn't matter much in this case.  If you two agree on a
>> solution, feel free to install it, even if it is not 110% clean.
>
> I've been using the patch for for widget-specify-inactive in an
> application I'm developing that exercises radio-button-choice widgets,
> but I'll switch to using the patch for widget-default-create instead.
> I've been encountering inconsistent behavior in combination with the use
> of widget-unselected face that I haven't tracked down the cause of yet.
> I don't expect using the patch for widget-default-create will improve
> this issue, but I'll find out.  I also plan to test that patch in
> combination with widget-unselected face with checklist widgets, which my
> application currently does not use.  I'll report back here before
> committing the patch for widget-default-create (or something else,
> depending on the outcome of further testing).

Just a brief status report: My testing does indeed indicate that the
fontification problem with radio-button-choice also occurs with
checklist widgets, though the pattern appears not to be identical; I
need to do more testing and debugging.

Steve Berman