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Handle update of invisible tty frames (bug#75056)

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* src/dispnew.c (combine_updates_for_frame): Don't assume root frame is
visible.
This commit is contained in:
Gerd Möllmann 2025-01-23 20:53:50 +01:00
parent f14c24dbe7
commit 15315780ae
1 changed files with 11 additions and 2 deletions
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13
src/dispnew.c
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@ -3964,11 +3964,20 @@ combine_updates_for_frame (struct frame *f, bool inhibit_scrolling)
{
#ifndef HAVE_ANDROID
struct frame *root = root_frame (f);
eassert (FRAME_VISIBLE_P (root));
/* Determine visible frames on the root frame, including the root
frame itself. Note that there are cases, see bug#75056, where we
can be called for invisible frames. */
Lisp_Object z_order = frames_in_reverse_z_order (root, true);
if (NILP (z_order))
{
Lisp_Object root_frame;
XSETFRAME (root_frame, root);
z_order = Fcons (root_frame, Qnil);
}
/* Process child frames in reverse z-order, topmost last. For each
child, copy what we need to the root's desired matrix. */
Lisp_Object z_order = frames_in_reverse_z_order (root, true);
struct frame *topmost_child = NULL;
for (Lisp_Object tail = XCDR (z_order); CONSP (tail); tail = XCDR (tail))
{