[gtk+/wip/baedert/children: 6/13] csswidgetnode: Don't assume parent widgets are always containers

[Timm Bäder <baedert src gnome org>]

commit 4a90a69f50991defba92830877131cfa5afebac9
Author: Timm Bäder <mail baedert org>
Date:   Fri Nov 18 09:53:15 2016 +0100

    csswidgetnode: Don't assume parent widgets are always containers

 gtk/gtkcsswidgetnode.c |   11 +++++++----
 1 files changed, 7 insertions(+), 4 deletions(-)
---
diff --git a/gtk/gtkcsswidgetnode.c b/gtk/gtkcsswidgetnode.c
index 4e63c3f..63cc455 100644
--- a/gtk/gtkcsswidgetnode.c
+++ b/gtk/gtkcsswidgetnode.c
@@ -170,11 +170,14 @@ widget_needs_widget_path (GtkWidget *widget)
   if (parent == NULL)
     return FALSE;
 
-  parent_func = GTK_CONTAINER_GET_CLASS (GTK_CONTAINER (parent))->get_path_for_child;
-  for (i = 0; i < G_N_ELEMENTS (funcs); i++)
+  if (GTK_IS_CONTAINER (parent))
     {
-      if (funcs[i] == parent_func)
-        return FALSE;
+      parent_func = GTK_CONTAINER_GET_CLASS (GTK_CONTAINER (parent))->get_path_for_child;
+      for (i = 0; i < G_N_ELEMENTS (funcs); i++)
+        {
+          if (funcs[i] == parent_func)
+            return FALSE;
+        }
     }
 
   return TRUE;