[gedit/wip/misc-improvements] notebook: use gtk_widget_get_ancestor()

[Sébastien Wilmet <swilmet src gnome org>]

commit 4f56d417be6627380369a3b5575a8bdbbeed587e
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Fri Jun 26 11:30:30 2015 +0200

    notebook: use gtk_widget_get_ancestor()

 gedit/gedit-notebook.c |   19 ++-----------------
 1 files changed, 2 insertions(+), 17 deletions(-)
---
diff --git a/gedit/gedit-notebook.c b/gedit/gedit-notebook.c
index 1022ed2..e6fce54 100644
--- a/gedit/gedit-notebook.c
+++ b/gedit/gedit-notebook.c
@@ -278,22 +278,6 @@ switch_to_last_focused_page (GeditNotebook *notebook,
        }
 }
 
-static GtkWidget *
-get_notebook_from_view (GtkWidget *view)
-{
-       GtkWidget *widget;
-
-       widget = view;
-
-       do
-       {
-               widget = gtk_widget_get_parent (widget);
-       }
-       while (!GEDIT_IS_NOTEBOOK (widget));
-
-       return widget;
-}
-
 static void
 drag_data_received_cb (GtkWidget        *widget,
                       GdkDragContext   *context,
@@ -325,7 +309,8 @@ drag_data_received_cb (GtkWidget        *widget,
        /* We need to iterate and get the notebook of the target view
         * because we can have several notebooks per window.
         */
-       new_notebook = get_notebook_from_view (widget);
+       new_notebook = gtk_widget_get_ancestor (widget, GEDIT_TYPE_NOTEBOOK);
+       g_return_if_fail (new_notebook != NULL);
 
        if (notebook != new_notebook)
        {