--- a/src/browser/sat_browser/contact_widget.py	Thu Apr 02 00:36:08 2015 +0200
+++ b/src/browser/sat_browser/contact_widget.py	Thu Apr 09 11:40:53 2015 +0200
@@ -84,17 +84,26 @@
 
 
 class ContactMenuBar(base_widget.WidgetMenuBar):
+    """WidgetMenuBar displaying the contact's avatar as category."""
 
     def onBrowserEvent(self, event):
         base_widget.WidgetMenuBar.onBrowserEvent(self, event)
         event.stopPropagation()  # prevent opening the chat dialog
 
     @classmethod
-    def getCategoryHTML(cls, menu_name_i18n, type_):
+    def getCategoryHTML(cls, category):
+        """Return the HTML code for displaying contact's avatar.
+
+        @param category (quick_menus.MenuCategory): ignored
+        @return(unicode): HTML to display
+        """
         return '<img src="%s"/>' % C.DEFAULT_AVATAR_URL
 
     def setUrl(self, url):
-        """Set the URL of the contact avatar."""
+        """Set the URL of the contact avatar.
+
+        @param url (unicode): avatar URL
+        """
         self.items[0].setHTML('<img src="%s" />' % url)