From: Nelson Benítez León <nbenitezl@gmail.com>
Date: Sun, 25 Sep 2022 01:16:18 +0000 (-0400)
Subject: fix crash in gtk_synthesize_crossing_events()
X-Git-Tag: archive/raspbian/4.12.3+ds-1+rpi1~1^2^2^2~116^2~1^2~214^2
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/%22/%22http:/www.example.com/cgi/%22?a=commitdiff_plain;h=94a4c2cb4019a6d155ef1b4d43d3107d8449bc98;p=gtk4.git

fix crash in gtk_synthesize_crossing_events()

Update ancestor between GTK_CROSSING_OUT and
GTK_CROSSING_IN as it may have changed.

Fixes #5190
---

diff --git a/gtk/gtkmain.c b/gtk/gtkmain.c
index 7ea84d4878..dfa9e399ef 100644
--- a/gtk/gtkmain.c
+++ b/gtk/gtkmain.c
@@ -1186,6 +1186,11 @@ gtk_synthesize_crossing_events (GtkRoot         *toplevel,
   for (widget = new_target; widget; widget = _gtk_widget_get_parent (widget))
     gtk_widget_stack_append (&target_array, g_object_ref (widget));
 
+  if (old_target && new_target)
+    ancestor = gtk_widget_common_ancestor (old_target, new_target);
+  else
+    ancestor = NULL;
+
   crossing.direction = GTK_CROSSING_IN;
 
   seen_ancestor = FALSE;