Re: Emacs master, faces with :extend t let cursor vanish at EOL?!

[Kaushal Modi <kaushal.modi@gmail.com>]

[-- Attachment #1: Type: text/plain, Size: 1839 bytes --]

On Tue, Oct 22, 2019 at 3:52 PM Ingo Lohmar <ingo.lohmar@posteo.net> wrote:

> I am writing to the org-mode list first, because I have only been able
> to reproduce this problem in org-mode.
>
> With a recent Emacs master build, faces can have the :extend t property
> to indicated that they should extend after the newline.  This is useful
> for a user to customize, eg, for `org-block', and it also applies to
> default faces like `region', `highlight' or `secondary-selection'.
>

Hello,

I have been seeing this issue too, but I haven't found time to create a
proper bug report for it.

But now that you have this email, I am forwarding this to the Emacs devel
list too.

The issue occurs because of the new :extend feature for faces to extend
till end of lines.

With that enabled, I have also seen that the cursor "hides" automatically
only at end of lines inside the Org source blocks. i.e within

#+begin_src emacs-lisp
(message "hello")X
#+end_src

Above: X is where the cursor would be, but it would not be visible (with
the :extend t added to the org-block face). The cursor would show up again
on doing C-b i.e. bringing it to any column position other than the EOL.


> Using this with a current elpa pkg of org-mode, and setting :extend t on
> faces like `org-block`, "often" the cursor vanishes at the EOL of a line
> using such a face.  It reliably happens for `org-block', only sometimes
> for `secondary-selection'.
>
> Has anybody else experienced that as well, or do you have any pointers
> on how to further investigate this?  I think I remember that org-mode does
> something with text overlays, but I can't relate that to what I see.
>
> There might also be an issue with face inheritance and the new :extend
> attribute --- I might post on emacs-devel to get a better idea of that
> as well.
>
> Thanks,
> Ingo
>
>

[-- Attachment #2: Type: text/html, Size: 2593 bytes --]