added XMPP example, fixed bug in TextType binding to textfield

lib/HistoryBuffer.coffee

@@ -22,6 +22,15 @@ class HistoryBuffer
     @reserved_identifier_counter = 0
     setTimeout @emptyGarbage, @garbageCollectTimeout
 
+  resetUserId: (id)->
+    own = @buffer[@user_id]
+    if own?
+      for o in own
+        o.uid.creator = id
+    @operation_counter[id] = @operation_counter[@user_id]
+    delete @operation_counter[@user_id]
+    @user_id = id
+
   emptyGarbage: ()=>
     for o in @garbage
       #if @getOperationCounter(o.uid.creator) > o.uid.op_number

lib/Types/TextTypes.coffee

@@ -108,6 +108,7 @@ module.exports = (HB)->
     # @param {Object} uid A unique identifier. If uid is undefined, a new uid will be created.
     #
     constructor: (uid, beginning, end, prev, next, origin)->
+      @textfields = []
       super uid, beginning, end, prev, next, origin
 
     #
@@ -123,6 +124,10 @@ module.exports = (HB)->
     type: "WordType"
 
     applyDelete: ()->
+      for textfield in @textfields
+        textfield.onkeypress = null
+        textfield.onpaste = null
+        textfield.oncut = null
       o = @beginning
       while o?
         o.applyDelete()
@@ -205,6 +210,7 @@ module.exports = (HB)->
     bind: (textfield)->
       word = @
       textfield.value = @val()
+      @textfields.push textfield
 
       @observe (events)->
         for event in events

lib/yatta.coffee

@@ -5,7 +5,14 @@ Engine = require "./Engine"
 adaptConnector = require "./ConnectorAdapter"
 
 createYatta = (connector)->
-  user_id = connector.id # TODO: change to getUniqueId()
+  user_id = null
+  if connector.id?
+    user_id = connector.id # TODO: change to getUniqueId()
+  else
+    user_id = "_temp"
+    connector.whenUserIdSet (id)->
+      user_id = id
+      HB.resetUserId id
   HB = new HistoryBuffer user_id
   type_manager = json_types_uninitialized HB
   types = type_manager.types