[gedit] Be robust against query_info failure

[Paolo Borelli <pborelli src gnome org>]

commit 7ba9f68a5bc5bbee07b9ca2b92fae596a0742d51
Author: Paolo Borelli <pborelli gnome org>
Date:   Sun Sep 16 21:49:20 2012 +0200

    Be robust against query_info failure

 plugins/snippets/snippets/document.py |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/plugins/snippets/snippets/document.py b/plugins/snippets/snippets/document.py
index f482723..678aa5e 100644
--- a/plugins/snippets/snippets/document.py
+++ b/plugins/snippets/snippets/document.py
@@ -366,9 +366,13 @@ class Document(GObject.Object, Gedit.ViewActivatable, Signals):
 
         def location_name_for_env(self, location):
                 if location:
-                        info = location.query_info("standard::display-name", 0, None)
+                        try:
+                                info = location.query_info("standard::display-name", 0, None)
+                                display_name = info.get_display_name()
+                        except:
+                                display_name = ''
 
-                        return {'utf8': unicode(info.get_display_name(), 'utf-8'),
+                        return {'utf8': unicode(display_name, 'utf-8'),
                                 'noenc': location.get_basename()}
                 else:
                         return u''