From e425c1d886450f8d34ed8301de26ab4ea5de70ca Mon Sep 17 00:00:00 2001
From: Marco Pesenti Gritti <mpg@redhat.com>
Date: Tue, 16 Oct 2007 11:32:53 +0000
Subject: Fallback to mime parents if the main one doesn't have matches

---
diff --git a/lib/sugar/datastore/datastore.py b/lib/sugar/datastore/datastore.py
index a865c30..6f1e146 100644
--- a/lib/sugar/datastore/datastore.py
+++ b/lib/sugar/datastore/datastore.py
@@ -117,20 +117,28 @@ class DSObject(object):
 
     file_path = property(get_file_path, set_file_path)
 
+    def _get_activities_for_mime(self, mime_type):
+        registry = activity.get_registry()
+        result = registry.get_activities_for_type(mime_type)
+        if not result:
+            for parent_mime in mime.get_mime_parents(mime_type):
+                 result.extend(registry.get_activities_for_type(parent_type))
+
     def get_activities(self):
         activities = []
 
-        if self.metadata['activity']:
-            activity_info = activity.get_registry().get_activity(self.metadata['activity'])
+        bundle_id = self.metadata['activity']
+        if bundle_id:
+            activity_info = activity.get_registry().get_activity(bundle_id)
             if activity_info:
                 activities.append(activity_info)
 
         mime_type = self.metadata['mime_type']
         if mime_type:
-            activities_info = activity.get_registry().get_activities_for_type(mime_type)
-            for activity_info in activities_info:
-                if activity_info.bundle_id != self.metadata['activity']:
-                    activities.append(activity_info)
+            activities_info = self._get_activities_for_mime(mime_type)
+            for info in activities_info:
+                if activity_info.bundle_id != bundle_id:
+                    activities.append(info)
 
         return activities
 
--
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