[gtk/matthiasc/for-master: 18/18] popovermenu: Fail gracefully if no model

[Matthias Clasen <matthiasc src gnome org>]

commit 8ae415acffa25e400b453094cdd358fffe63ada2
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Nov 4 14:56:52 2020 -0500

    popovermenu: Fail gracefully if no model
    
    If we don't have a model yet, return FALSE from
    gtk_popover_menu_add_custom().

 gtk/gtkmenusectionbox.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/gtk/gtkmenusectionbox.c b/gtk/gtkmenusectionbox.c
index 9f988d98f5..332252bb51 100644
--- a/gtk/gtkmenusectionbox.c
+++ b/gtk/gtkmenusectionbox.c
@@ -696,6 +696,8 @@ gtk_menu_section_box_add_custom (GtkPopoverMenu *popover,
 
   stack = gtk_popover_get_child (GTK_POPOVER (popover));
   box = GTK_MENU_SECTION_BOX (gtk_stack_get_child_by_name (GTK_STACK (stack), "main"));
+  if (box == NULL)
+    return FALSE;
 
   slot = (GtkWidget *)g_hash_table_lookup (box->custom_slots, id);