--- a/frontends/src/quick_frontend/quick_chat.py	Thu Mar 19 20:40:10 2015 +0100
+++ b/frontends/src/quick_frontend/quick_chat.py	Fri Mar 20 16:25:38 2015 +0100
@@ -46,7 +46,6 @@
         self.type = type_
         self.id = "" # FIXME: to be removed
         self.nick = None
-        self.occupants = set()
         self.games = {}
 
     def __str__(self):
@@ -64,7 +63,6 @@
         """
         return (unicode(profile), target)
 
-
     def addTarget(self, target):
         super(QuickChat, self).addTarget(target)
         if target.resource:
@@ -76,6 +74,17 @@
             return self.current_target.bare
         return self.current_target
 
+    @property
+    def occupants(self):
+        """Return the occupants of a group chat (nicknames).
+
+        @return: set(unicode)
+        """
+        if self.type != C.CHAT_GROUP:
+            return set()
+        contact_list = self.host.contact_lists[self.profile]
+        return contact_list.getCache(self.target, C.CONTACT_RESOURCES).keys()
+
     def manageMessage(self, entity, mess_type):
         """Tell if this chat widget manage an entity and message type couple
 
@@ -91,37 +100,13 @@
                 return True
         return False
 
-    def setPresents(self, nicks):
-        """Set the occupants of a group chat.
-
-        @param nicks (list[unicode]): sorted list of nicknames
-        """
-        log.debug(_("Adding users %s to room") % nicks)
-        if self.type != C.CHAT_GROUP:
-            log.error(_("[INTERNAL] trying to set presents nicks for a non group chat window"))
-            raise Exception("INTERNAL ERROR")  # TODO: raise proper Exception here
-        self.occupants.update(nicks)
-
-    def replaceUser(self, nick, show_info=True):
+    def addUser(self, nick):
         """Add user if it is not in the group list"""
-        log.debug (_("Replacing user %s") % nick)
-        if self.type != C.CHAT_GROUP:
-            log.error (_("[INTERNAL] trying to replace user for a non group chat window"))
-            raise Exception("INTERNAL ERROR") #TODO: raise proper Exception here
-        len_before = len(self.occupants)
-        self.occupants.add(nick)
-        if len_before != len(self.occupants) and show_info:
-            self.printInfo("=> %s has joined the room" % nick)
+        self.printInfo("=> %s has joined the room" % nick)
 
-    def removeUser(self, nick, show_info=True):
+    def removeUser(self, nick):
         """Remove a user from the group list"""
-        log.debug(_("Removing user %s") % nick)
-        if self.type != C.CHAT_GROUP:
-            log.error (_("[INTERNAL] trying to remove user for a non group chat window"))
-            raise Exception("INTERNAL ERROR") #TODO: raise proper Exception here
-        self.occupants.remove(nick)
-        if show_info:
-            self.printInfo("<= %s has left the room" % nick)
+        self.printInfo("<= %s has left the room" % nick)
 
     def setUserNick(self, nick):
         """Set the nick of the user, usefull for e.g. change the color of the user"""
@@ -132,12 +117,6 @@
 
     def changeUserNick(self, old_nick, new_nick):
         """Change nick of a user in group list"""
-        log.debug(_("Changing nick of user %(old_nick)s to %(new_nick)s") % {"old_nick": old_nick, "new_nick": new_nick})
-        if self.type != C.CHAT_GROUP:
-            log.error (_("[INTERNAL] trying to change user nick for a non group chat window"))
-            raise Exception("INTERNAL ERROR") #TODO: raise proper Exception here
-        self.removeUser(old_nick, show_info=False)
-        self.replaceUser(new_nick, show_info=False)
         self.printInfo("%s is now known as %s" % (old_nick, new_nick))
 
     def setSubject(self, subject):