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paned: Warn if child is not actually a child

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This will at least allow us to debug this in the future.
This commit is contained in:
Georges Basile Stavracas Neto 2022-08-09 14:20:25 -03:00
parent 120399cc92
commit 29580d4252
1 changed files with 9 additions and 0 deletions
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9
gtk/gtkpaned.c
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@ -1977,6 +1977,15 @@ gtk_paned_set_focus_child (GtkWidget *widget,
if (GTK_IS_PANED (w)) if (GTK_IS_PANED (w))
last_focus = w; last_focus = w;
if (w == NULL)
{
g_warning ("Error finding last focus widget of GtkPaned %p, "
"gtk_paned_set_focus_child was called on widget %p "
"which is not child of %p.",
widget, child, widget);
return;
}
focus_child = gtk_widget_get_focus_child (widget); focus_child = gtk_widget_get_focus_child (widget);
if (focus_child == paned->start_child) if (focus_child == paned->start_child)
gtk_paned_set_last_start_child_focus (paned, last_focus); gtk_paned_set_last_start_child_focus (paned, last_focus);