Fixed crash

source/ubl-settings-usergroups.c

@@ -2379,13 +2379,18 @@ gboolean on_menu_open(GtkWidget *self,GdkEventButton *event, rmb_menu_window *wi
 	if (event->button==3){
 		GtkTreeModel *model = gtk_tree_view_get_model(GTK_TREE_VIEW(self));
 		GtkTreeIter iter;
-		if (gtk_tree_model_get_iter_first(model,&iter)&&gtk_tree_selection_get_selected(gtk_tree_view_get_selection(GTK_TREE_VIEW(self)),&model,&iter)){
-			gtk_widget_set_sensitive(GTK_WIDGET(window->buttons->first->next->data),1);
-			gtk_widget_set_sensitive(GTK_WIDGET(window->buttons->first->next->next->data),1);
-		} else {
-			gtk_widget_set_sensitive(GTK_WIDGET(window->buttons->first->next->data),0);
-			gtk_widget_set_sensitive(GTK_WIDGET(window->buttons->first->next->next->data),0);
+		dictionary *cur=NULL;
+		int amount = 0;
+		int chosen = gtk_tree_model_get_iter_first(model,&iter)&&gtk_tree_selection_get_selected(gtk_tree_view_get_selection(GTK_TREE_VIEW(self)),&model,&iter);
+		for_dictionaries(cur,window->buttons){
+			amount++;
+			if (chosen){
+				gtk_widget_set_sensitive(GTK_WIDGET(cur->data),1);
+			} else {
+				gtk_widget_set_sensitive(GTK_WIDGET(cur->data),0);
+			}
 		}
+		if (amount<3) gtk_widget_set_sensitive(GTK_WIDGET(window->buttons->first->data),1);
 	}
 	return 0;
 }