GNU bug report logs - #77079
31.0.50; Re-parenting tty child frame leaves two instances on display

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Package: emacs;

Reported by: martin rudalics <rudalics <at> gmx.at>

Date: Mon, 17 Mar 2025 18:53:05 UTC

Severity: normal

Found in version 31.0.50

Done: martin rudalics <rudalics <at> gmx.at>

Bug is archived. No further changes may be made.

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From: martin rudalics <rudalics <at> gmx.at>
To: 77079 <at> debbugs.gnu.org
Cc: Gerd Möllmann <gerd.moellmann <at> gmail.com>
Subject: bug#77079: 31.0.50; Re-parenting tty child frame leaves two instances on display
Date: Mon, 17 Mar 2025 19:52:41 +0100

I think we need the following change

diff --git a/src/frame.c b/src/frame.c
index c1ef26e5dd4..9a4ca7d0682 100644
--- a/src/frame.c
+++ b/src/frame.c
@@ -3706,6 +3706,7 @@ store_frame_param (struct frame *f, Lisp_Object prop, Lisp_Object val)
       if (NILP (f->parent_frame) != NILP (val))
 	error ("Making a root frame a child or vice versa is not supported");
       f->parent_frame = val;
+      SET_FRAME_GARBAGED (root_frame (f));
     }

   /* The tty color needed to be set before the frame's parameter

since otherwise re-parenting a child frame, for example, using

(set-frame-parameter tty-3 'parent-frame tty-1)

from my earlier tty-child-frames.el leaves one with two instances of the
child frame on display.

martin
This bug report was last modified 66 days ago.

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