[totem] Disable seeking in DVD menus

[Bastien Nocera <hadess src gnome org>]

commit 4f6595a6f421c256c54210187ce5f0aa597072e5
Author: Bastien Nocera <hadess hadess net>
Date:   Thu Apr 8 13:41:07 2010 +0100

    Disable seeking in DVD menus
    
    If we enabled seeking in menus, either we'd miss
    navigation events, or we'd need to parse the MPEG stream
    anyway. So just disable DVD menus right now.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=607556

 src/backend/bacon-video-widget-gst-0.10.c |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)
---
diff --git a/src/backend/bacon-video-widget-gst-0.10.c b/src/backend/bacon-video-widget-gst-0.10.c
index b56ebef..79f4e18 100644
--- a/src/backend/bacon-video-widget-gst-0.10.c
+++ b/src/backend/bacon-video-widget-gst-0.10.c
@@ -1567,7 +1567,11 @@ bvw_handle_element_message (BaconVideoWidget *bvw, GstMessage *msg)
               is_menu |= (cmd == GST_NAVIGATION_COMMAND_DOWN);
             }
           }
-          bvw->priv->is_menu = is_menu;
+	  /* Are we in a menu now? */
+	  if (bvw->priv->is_menu != is_menu) {
+	    bvw->priv->is_menu = is_menu;
+	    g_object_notify (G_OBJECT (bvw), "seekable");
+	  }
         }
 
         gst_query_unref (cmds_q);
@@ -5418,6 +5422,9 @@ bacon_video_widget_is_seekable (BaconVideoWidget * bvw)
 
   old_seekable = bvw->priv->seekable;
 
+  if (bvw->priv->is_menu != FALSE)
+    return FALSE;
+
   if (bvw->priv->seekable == -1) {
     GstQuery *query;