GNU bug report logs - #53776
Modeline indicator when using define-minor-mode

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Message #20 received at 53776 <at> debbugs.gnu.org (full text, mbox):

From: goncholden <goncholden <at> protonmail.com>
To: Stephen Berman <stephen.berman <at> gmx.net>
Cc: 53776 <at> debbugs.gnu.org
Subject: Re: bug#53776: Modeline indicator when using define-minor-mode
Date: Fri, 04 Feb 2022 14:05:58 +0000

------- Original Message -------

On Friday, February 4th, 2022 at 1:35 PM, Stephen Berman <stephen.berman <at> gmx.net> wrote:

> On Fri, 04 Feb 2022 13:22:08 +0000 goncholden goncholden <at> protonmail.com wrote:
>
> > ------- Original Message -------
> >
> > On Friday, February 4th, 2022 at 1:02 PM, Stephen Berman
> >
> > stephen.berman <at> gmx.net wrote:
> >
> > > On Fri, 04 Feb 2022 11:55:45 +0000 goncholden via "Bug reports for GNU
> > >
> > > Emacs, the Swiss army knife of text editors" bug-gnu-emacs <at> gnu.org wrote:
> > >
> > > > Have been using define-minor-mode and noticed that when setting the
> > > > modeline indicator, the text is appended with no space between other
> > > > modeline indicators. Is this how :lighter is supposed to work?
> > >
> > > Yes, the lack of a space is in the definition of `mode-line-modes':`
> > >
> > > (:propertize ("" minor-mode-alist)
> > >
> > > I guess the reason is that you can have multiple minor mode lighters and
> > > providing a space between each would complicate the definition of
> > > `mode-line-modes', so that's the job of the minor mode definition
> > > itself:
> > >
> > > > (define-minor-mode rich-minor-mode
> > > > "This is the docstring."
> > > > :lighter "rich"
> > >
> > > So you should do this: :lighter " rich"
> > >
> > > Steve Berman
> >
> > Because one can easily add minor-modes that exceed the mode-line mini-buffer,
> > is there
> > the capability of making a hierarchical modeline indicator.
> >
> > e.g.
> >
> > Emacs-Lisp
> > company
> > Outl
> > Gon -> rich
> > -> gudin
> > -> cholden
>
> That would appear to require a multiline mode line, which is not
> possible with the current implementation. An alternative, which might
> be easier to implement (for someone who knows how, not me), would be to
> make the mode line horizontally scrollable. But maybe that's not so
> easy, since it seems so obviously useful, yet hasn't been implemented.

> Steve Berman

Much useful.  Would we be able to include such proposition for emacs?

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