GNU bug report logs - #70311
Crash when dnd-indicate-insertion-point is non-nil

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Message #28 received at 70311-done <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Po Lu <luangruo <at> yahoo.com>
Cc: 70311-done <at> debbugs.gnu.org, gregsexton <at> gmail.com
Subject: Re: bug#70311: Crash when dnd-indicate-insertion-point is non-nil
Date: Sun, 14 Apr 2024 13:17:37 +0300

> From: Po Lu <luangruo <at> yahoo.com>
> Cc: gregsexton <at> gmail.com,  70311 <at> debbugs.gnu.org
> Date: Sun, 14 Apr 2024 17:24:12 +0800
> 
> Eli Zaretskii <eliz <at> gnu.org> writes:
> 
> >> From: Po Lu <luangruo <at> yahoo.com>
> >> Cc: gregsexton <at> gmail.com,  70311 <at> debbugs.gnu.org
> >> Date: Sat, 13 Apr 2024 20:28:14 +0800
> >> 
> >> Eli Zaretskii <eliz <at> gnu.org> writes:
> >> 
> >> > So you think the suggested band-aid is the best we can currently do to
> >> > prevent crashes in those cases?
> >> 
> >> Yes, unfortunately.
> >
> > Does the band-aid below look OK to you?
> >
> > diff --git a/lisp/dnd.el b/lisp/dnd.el
> > index 89652d3..de1c58a 100644
> > --- a/lisp/dnd.el
> > +++ b/lisp/dnd.el
> > @@ -149,8 +149,13 @@ dnd-handle-movement
> >                  (with-selected-window window
> >                    (scroll-down 1))))))))
> >        (when dnd-indicate-insertion-point
> > -        (ignore-errors
> > -          (goto-char (posn-point posn)))))))
> > +        (let ((pos (posn-point posn)))
> > +          ;; We avoid errors here, since on some systems this runs
> > +          ;; when waiting_for_input is non-zero, and that aborts on
> > +          ;; error.
> > +          (if (and pos (<= (point-min) pos (point-max)))
> > +              (goto-char pos)
> > +            pos))))))
> 
> Yes, please install.  Thanks.

Thanks, installed on the emacs-29 branch, and closing the bug.

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