[gnome-builder/wip/chergert/layout] layout: fix open-in-new-frame action

[Christian Hergert <chergert src gnome org>]

commit cf61f05a724ca5a268229c1a8dfee17a5cfc8757
Author: Christian Hergert <chergert redhat com>
Date:   Wed Jul 5 06:15:11 2017 -0700

    layout: fix open-in-new-frame action
    
    We were still treating the stack as the child of the grid rather
    than the intermediate column.

 libide/layout/ide-layout-stack-actions.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)
---
diff --git a/libide/layout/ide-layout-stack-actions.c b/libide/layout/ide-layout-stack-actions.c
index 6aa66fa..4eaf029 100644
--- a/libide/layout/ide-layout-stack-actions.c
+++ b/libide/layout/ide-layout-stack-actions.c
@@ -132,6 +132,7 @@ ide_layout_stack_actions_open_in_new_frame (GSimpleAction *action,
   IdeLayoutView *view;
   IdeLayoutStack *dest;
   GtkWidget *grid;
+  GtkWidget *column;
   gint index = 0;
 
   g_assert (G_IS_SIMPLE_ACTION (action));
@@ -156,7 +157,12 @@ ide_layout_stack_actions_open_in_new_frame (GSimpleAction *action,
   g_return_if_fail (grid != NULL);
   g_return_if_fail (IDE_IS_LAYOUT_GRID (grid));
 
-  gtk_container_child_get (GTK_CONTAINER (grid), GTK_WIDGET (self),
+  column = gtk_widget_get_ancestor (GTK_WIDGET (self), IDE_TYPE_LAYOUT_GRID_COLUMN);
+
+  g_return_if_fail (column != NULL);
+  g_return_if_fail (IDE_IS_LAYOUT_GRID_COLUMN (column));
+
+  gtk_container_child_get (GTK_CONTAINER (grid), GTK_WIDGET (column),
                            "index", &index,
                            NULL);