[pitivi] ElementTreeFormatter: Properly load sources. Fixes #582419

[Edward Hervey <edwardrv src gnome org>]

commit 5b402e5664ea8f4c15e4c8b746dd4f2d7a14a59f
Author: Edward Hervey <bilboed bilboed com>
Date:   Tue May 26 18:24:05 2009 +0200

    ElementTreeFormatter: Properly load sources. Fixes #582419
---
 pitivi/formatters/etree.py |   13 ++++---------
 1 files changed, 4 insertions(+), 9 deletions(-)

diff --git a/pitivi/formatters/etree.py b/pitivi/formatters/etree.py
index d4db807..9d94801 100644
--- a/pitivi/formatters/etree.py
+++ b/pitivi/formatters/etree.py
@@ -225,17 +225,12 @@ class ElementTreeFormatter(Formatter):
 
         return element
 
-    def _loadFactories(self, factories, klass):
-        res = []
-        for fact in factories:
-            obj = self._loadObjectFactory(klass, fact)
-            if obj:
-                res.append(obj)
-        return res
-
     def _loadSources(self):
         sources = self.factoriesnode.find("sources")
-        return self._loadFactories(sources, FileSourceFactory)
+        res = []
+        for src in sources:
+            res.append(self._loadFactory(src))
+        return res
 
     def _serializeDict(self, element, dict):
         for a, b in dict.iteritems():