[gitg] Only have scrolling when dnd refs

[Jesse van den Kieboom <jessevdk src gnome org>]

commit 64983cffbc105cbf5cd4e5d7b7c75c9e85498f64
Author: Jesse van den Kieboom <jessevdk gnome org>
Date:   Sun Feb 21 10:46:45 2010 +0100

    Only have scrolling when dnd refs

 gitg/gitg-dnd.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/gitg/gitg-dnd.c b/gitg/gitg-dnd.c
index e1af4e3..fd8f215 100644
--- a/gitg/gitg-dnd.c
+++ b/gitg/gitg-dnd.c
@@ -653,7 +653,11 @@ gitg_drag_source_motion_cb (GtkWidget       *widget,
 		}
 	}
 
-	add_scroll_timeout (data);
+	if (data->ref)
+	{
+		add_scroll_timeout (data);
+	}
+
 	return ret;
 }