[gedit] Fixed relative document path for snippets drop target

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

commit b0a402df19fa276c61a5fc2fc96c8e742f029d12
Author: Jesse van den Kieboom <jesse vandenkieboom epfl ch>
Date:   Fri Apr 9 15:59:36 2010 +0200

    Fixed relative document path for snippets drop target

 plugins/snippets/snippets/Document.py |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/plugins/snippets/snippets/Document.py b/plugins/snippets/snippets/Document.py
index 422a722..9f0d543 100644
--- a/plugins/snippets/snippets/Document.py
+++ b/plugins/snippets/snippets/Document.py
@@ -879,8 +879,9 @@ class Document:
                 os.environ['GEDIT_DROP_DOCUMENT_TYPE'] = mime
                 
                 buf = self.view.get_buffer()
-                filename = self.env_get_document_path(buf)
-                os.environ['GEDIT_DROP_DOCUMENT_RELATIVE_PATH'] = self.relative_path(filename, uri, mime)
+                relpath = self.relative_path(buf.get_uri() or "", uri, mime)
+
+                os.environ['GEDIT_DROP_DOCUMENT_RELATIVE_PATH'] = relpath
 
                 mark = buf.get_mark('gtk_drag_target')