[kupfer] thunderbird: Make it group with others

[Ulrik Sverdrup <usverdrup src gnome org>]

commit aa18593cf7d3502f57a83bc39c50fb18eb8cdf96
Author: Ulrik Sverdrup <ulrik sverdrup gmail com>
Date:   Tue Jan 19 02:09:26 2010 +0100

    thunderbird: Make it group with others

 kupfer/plugin/thunderbird.py |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)
---
diff --git a/kupfer/plugin/thunderbird.py b/kupfer/plugin/thunderbird.py
index 0884f8e..f1852c4 100644
--- a/kupfer/plugin/thunderbird.py
+++ b/kupfer/plugin/thunderbird.py
@@ -62,13 +62,16 @@ class NewMailAction(Action):
 	def valid_for_item(self, item):
 		return bool(email_from_leaf(item))
 
-class ContactsSource(AppLeafContentMixin, Source, FilesystemWatchMixin):
+class ContactsSource(AppLeafContentMixin, ToplevelGroupingSource,
+		FilesystemWatchMixin):
 	appleaf_content_id = ('thunderbird', 'icedove')
 
 	def __init__(self, name=_("Thunderbird Address Book")):
-		Source.__init__(self, name)
+		ToplevelGroupingSource.__init__(self, name, "Contacts")
+		self._version = 2
 
 	def initialize(self):
+		ToplevelGroupingSource.initialize(self)
 		abook_dir = support.get_addressbook_dir()
 		if not abook_dir or not os.path.isdir(abook_dir):
 			return
@@ -83,6 +86,9 @@ class ContactsSource(AppLeafContentMixin, Source, FilesystemWatchMixin):
 
 		yield ComposeMail()
 
+	def should_sort_lexically(self):
+		return True
+
 	def get_description(self):
 		return _("Contacts from Thunderbird Address Book")