included connector type

build/node/ConnectorAdapter.js

@@ -1,7 +1,13 @@
-var adaptConnector;
+var ConnectorClass, adaptConnector;
+
+ConnectorClass = require("./ConnectorClass");
 
 adaptConnector = function(connector, engine, HB, execution_listener) {
-  var applyHB, encode_state_vector, getHB, getStateVector, parse_state_vector, send_;
+  var applyHB, encode_state_vector, f, getHB, getStateVector, name, parse_state_vector, send_;
+  for (name in ConnectorClass) {
+    f = ConnectorClass[name];
+    connector[name] = f;
+  }
   send_ = function(o) {
     if (o.uid.creator === HB.getUserId() && (typeof o.uid.op_number !== "string")) {
       return connector.broadcast(o);
@@ -12,7 +18,7 @@ adaptConnector = function(connector, engine, HB, execution_listener) {
   }
   execution_listener.push(send_);
   encode_state_vector = function(v) {
-    var name, value, _results;
+    var value, _results;
     _results = [];
     for (name in v) {
       value = v[name];
@@ -55,6 +61,7 @@ adaptConnector = function(connector, engine, HB, execution_listener) {
   connector.getStateVector = getStateVector;
   connector.getHB = getHB;
   connector.applyHB = applyHB;
+  connector.receive_handlers = [];
   connector.receive_handlers.push(function(sender, op) {
     if (op.uid.creator !== HB.getUserId()) {
       return engine.applyOp(op);

build/node/ConnectorClass.js

@@ -0,0 +1,304 @@
+module.exports = {
+  init: function(options) {
+    var req;
+    req = (function(_this) {
+      return function(name, choices) {
+        if (options[name] != null) {
+          if ((choices == null) || choices.some(function(c) {
+            return c === options[name];
+          })) {
+            return _this[name] = options[name];
+          } else {
+            throw new Error("You can set the '" + name + "' option to one of the following choices: " + JSON.encode(choices));
+          }
+        } else {
+          throw new Error("You must specify " + name + ", when initializing the Connector!");
+        }
+      };
+    })(this);
+    req("syncMode", ["syncAll", "master-slave"]);
+    req("role", ["master", "slave"]);
+    req("user_id");
+    this.on_user_id_set(this.user_id);
+    if (this.role === "master") {
+      this.syncMode = "syncAll";
+    }
+    this.is_synced = false;
+    this.is_syncing = false;
+    this.connections = {};
+    this.is_bound_to_y = false;
+    this.connections = {};
+    return this.current_sync_target = null;
+  },
+  isRoleMaster: function() {
+    return this.role === "master";
+  },
+  isRoleSlave: function() {
+    return this.role === "slave";
+  },
+  findNewSyncTarget: function() {
+    var c, user, _ref;
+    this.current_sync_target = null;
+    if (this.syncMode === "syncAll") {
+      _ref = this.connections;
+      for (user in _ref) {
+        c = _ref[user];
+        if (!c.is_synced) {
+          this.performSync(user);
+          break;
+        }
+      }
+    }
+    return null;
+  },
+  userLeft: function(user) {
+    delete this.connections[user];
+    return this.findNewSyncTarget();
+  },
+  userJoined: function(user, role) {
+    if (role == null) {
+      throw new Error("Internal: You must specify the role of the joined user!");
+    }
+    this.connections[user] = {
+      is_synced: false
+    };
+    if ((!this.is_synced) || this.syncMode === "syncAll") {
+      if (this.syncMode === "syncAll") {
+        return this.performSync(user);
+      } else if (role === "master") {
+        return this.performSyncWithMaster(user);
+      }
+    }
+  },
+  whenSynced: function(args) {
+    if (args.constructore === Function) {
+      args = [args];
+    }
+    if (this.is_synced) {
+      return args[0].apply(this, args.slice(1));
+    } else {
+      if (this.compute_when_synced == null) {
+        this.compute_when_synced = [];
+      }
+      return this.compute_when_synced.push(args);
+    }
+  },
+  onReceive: function(f) {
+    return this.receive_handlers.push(f);
+  },
+
+  /*
+   * Broadcast a message to all connected peers.
+   * @param message {Object} The message to broadcast.
+   *
+  broadcast: (message)->
+    throw new Error "You must implement broadcast!"
+  
+   *
+   * Send a message to a peer, or set of peers
+   *
+  send: (peer_s, message)->
+    throw new Error "You must implement send!"
+   */
+  performSync: function(user) {
+    if (this.current_sync_target == null) {
+      this.current_sync_target = user;
+      return this.send(user, {
+        sync_step: "getHB",
+        data: this.getStateVector()
+      });
+    }
+  },
+  performSyncWithMaster: function(user) {
+    var hb, o, _hb, _i, _len;
+    if (!this.is_syncing) {
+      this.current_sync_target = user;
+      this.is_syncing = true;
+      this.send(user, {
+        sync_step: "getHB",
+        send_again: "true",
+        data: []
+      });
+      hb = this.getHB([]).hb;
+      _hb = [];
+      for (_i = 0, _len = hb.length; _i < _len; _i++) {
+        o = hb[_i];
+        _hb.push(o);
+        if (_hb.length > 30) {
+          this.broadcast({
+            sync_step: "applyHB_",
+            data: _hb
+          });
+          _hb = [];
+        }
+      }
+      return this.broadcast({
+        sync_step: "applyHB",
+        data: _hb
+      });
+    }
+  },
+  setStateSynced: function() {
+    var f, _i, _len, _ref;
+    if (!this.is_synced) {
+      this.is_synced = true;
+      _ref = this.compute_when_synced;
+      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
+        f = _ref[_i];
+        f();
+      }
+      delete this.compute_when_synced;
+      return null;
+    }
+  },
+  receiveMessage: function(sender, res) {
+    var data, f, hb, o, send_again, _hb, _i, _j, _len, _len1, _ref, _results;
+    if (res.sync_step == null) {
+      _ref = this.receive_handlers;
+      _results = [];
+      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
+        f = _ref[_i];
+        _results.push(f(sender, res));
+      }
+      return _results;
+    } else {
+      if (res.sync_step === "getHB") {
+        data = this.getHB(res.data);
+        hb = data.hb;
+        _hb = [];
+        for (_j = 0, _len1 = hb.length; _j < _len1; _j++) {
+          o = hb[_j];
+          _hb.push(o);
+          if (_hb.length > 30) {
+            this.send(sender, {
+              sync_step: "applyHB_",
+              data: _hb
+            });
+            _hb = [];
+          }
+        }
+        this.send(sender, {
+          sync_step: "applyHB",
+          data: _hb
+        });
+        if (res.send_again != null) {
+          send_again = (function(_this) {
+            return function(sv) {
+              return function() {
+                hb = _this.getHB(sv).hb;
+                return _this.send(sender, {
+                  sync_step: "applyHB",
+                  data: hb,
+                  sent_again: "true"
+                });
+              };
+            };
+          })(this)(data.state_vector);
+          return setTimeout(send_again, 3000);
+        }
+      } else if (res.sync_step === "applyHB") {
+        this.applyHB(res.data);
+        if ((this.syncMode === "syncAll" || (res.sent_again != null)) && !this.is_synced) {
+          this.setStateSynced();
+          this.connections[sender].is_synced = true;
+          return this.findNewSyncTarget();
+        }
+      } else if (res.sync_step === "applyHB_") {
+        return this.applyHB(res.data);
+      }
+    }
+  },
+  parseMessageFromXml: function(m) {
+    var parse_array, parse_object;
+    parse_array = function(node) {
+      var n, _i, _len, _ref, _results;
+      _ref = node.children;
+      _results = [];
+      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
+        n = _ref[_i];
+        if (n.getAttribute("isArray") === "true") {
+          _results.push(parse_array(n));
+        } else {
+          _results.push(parse_object(n));
+        }
+      }
+      return _results;
+    };
+    parse_object = function(node) {
+      var int, json, n, name, value, _i, _len, _ref, _ref1;
+      json = {};
+      _ref = node.attrs;
+      for (name in _ref) {
+        value = _ref[name];
+        int = parseInt(value);
+        if (isNaN(int) || ("" + int) !== value) {
+          json[name] = value;
+        } else {
+          json[name] = int;
+        }
+      }
+      _ref1 = node.children;
+      for (_i = 0, _len = _ref1.length; _i < _len; _i++) {
+        n = _ref1[_i];
+        name = n.name;
+        if (n.getAttribute("isArray") === "true") {
+          json[name] = parse_array(n);
+        } else {
+          json[name] = parse_object(n);
+        }
+      }
+      return json;
+    };
+    return parse_object(m);
+  },
+  encodeMessageToXml: function(m, json) {
+    var encode_array, encode_object;
+    encode_object = function(m, json) {
+      var name, value;
+      for (name in json) {
+        value = json[name];
+        if (value == null) {
+
+        } else if (value.constructor === Object) {
+          encode_object(m.c(name), value);
+        } else if (value.constructor === Array) {
+          encode_array(m.c(name), value);
+        } else {
+          m.setAttribute(name, value);
+        }
+      }
+      return m;
+    };
+    encode_array = function(m, array) {
+      var e, _i, _len;
+      m.setAttribute("isArray", "true");
+      for (_i = 0, _len = array.length; _i < _len; _i++) {
+        e = array[_i];
+        if (e.constructor === Object) {
+          encode_object(m.c("array-element"), e);
+        } else {
+          encode_array(m.c("array-element"), e);
+        }
+      }
+      return m;
+    };
+    if (json.constructor === Object) {
+      return encode_object(m.c("y", {
+        xmlns: "http://y.ninja/connector-stanza"
+      }), json);
+    } else if (json.constructor === Array) {
+      return encode_array(m.c("y", {
+        xmlns: "http://y.ninja/connector-stanza"
+      }), json);
+    } else {
+      throw new Error("I can't encode this json!");
+    }
+  },
+  setIsBoundToY: function() {
+    if (typeof this.on_bound_to_y === "function") {
+      this.on_bound_to_y();
+    }
+    delete this.when_bound_to_y;
+    return this.is_bound_to_y = true;
+  }
+};

build/node/HistoryBuffer.js

@@ -30,8 +30,10 @@ HistoryBuffer = (function() {
       this.buffer[id] = own;
       delete this.buffer[this.user_id];
     }
-    this.operation_counter[id] = this.operation_counter[this.user_id];
-    delete this.operation_counter[this.user_id];
+    if (this.operation_counter[this.user_id] != null) {
+      this.operation_counter[id] = this.operation_counter[this.user_id];
+      delete this.operation_counter[this.user_id];
+    }
     return this.user_id = id;
   };
 
@@ -221,7 +223,7 @@ HistoryBuffer = (function() {
     _results = [];
     for (user in state_vector) {
       state = state_vector[user];
-      if ((this.operation_counter[user] == null) || (this.operation_counter[user] < state_vector[user])) {
+      if (((this.operation_counter[user] == null) || (this.operation_counter[user] < state_vector[user])) && (state_vector[user] != null)) {
         _results.push(this.operation_counter[user] = state_vector[user]);
       } else {
         _results.push(void 0);

build/node/Types/StructuredTypes.js

@@ -187,7 +187,7 @@ module.exports = function(HB) {
 
     ReplaceManager.prototype.callEventDecorator = function(events) {
       var event, name, prop, _i, _len, _ref;
-      if (!this.isDeleted()) {
+      if (!(this.isDeleted() || this.getLastOperation().isDeleted())) {
         for (_i = 0, _len = events.length; _i < _len; _i++) {
           event = events[_i];
           _ref = this.event_properties;

build/node/y.js

@@ -13,14 +13,14 @@ adaptConnector = require("./ConnectorAdapter");
 createY = function(connector) {
   var HB, Y, type_manager, types, user_id;
   user_id = null;
-  if (connector.id != null) {
-    user_id = connector.id;
+  if (connector.user_id != null) {
+    user_id = connector.user_id;
   } else {
     user_id = "_temp";
-    connector.onUserIdSet(function(id) {
+    connector.on_user_id_set = function(id) {
       user_id = id;
       return HB.resetUserId(id);
-    });
+    };
   }
   HB = new HistoryBuffer(user_id);
   type_manager = json_types_uninitialized(HB);

examples/XMPP-Polymer/index.html

@@ -10,6 +10,5 @@
   </head>
   <body>
     <y-test></y-test>
-    <script src="./index.js"></script>
   </body>
 </html>

examples/XMPP-Polymer/index.js

@@ -1,19 +0,0 @@
-
-setTimeout(function(){
-  window.y_test = document.querySelector("y-test");
-
-  window.y_test.y.val("stuff",{otherstuff:{nostuff:"this is no stuff"}})
-  setTimeout(function(){
-    var res = y_test.y.val("stuff");
-    if(!(y_test.nostuff === "this is no stuff")){
-      console.log("Deep inherit doesn't work!")
-    }
-    window.y_stuff_property.val = {nostuff: "this is also no stuff"};
-    setTimeout(function(){
-      if(!(y_test.nostuff === "this is also no stuff")){
-        console.log("Element val overwrite doesn't work")
-      }
-      console.log("Everything is fine :)");
-    },500)
-  },500);
-},3000)

examples/XMPP-Polymer/y-test.html

@@ -1,11 +1,11 @@
 <link rel="import" href="../../y-object.html">
-<link rel="import" href="../../../y-connectors/y-xmpp/y-xmpp.html">
+<link rel="import" href="../../../y-xmpp/build/browser/y-xmpp.html">
 <link rel="import" href="../../../paper-slider/paper-slider.html">
 
 <polymer-element name="y-test" attributes="y connector stuff">
   <template>
     <h1 id="text" contentEditable> Check this out !</h1>
-    <y-xmpp id="connector" connector={{connector}} room="testy-xmpp-polymer"></y-xmpp>
+    <y-xmpp id="connector" connector={{connector}} room="testy-xmpp-polymer" syncMode="syncAll"></y-xmpp>
     <y-object connector={{connector}} val={{y}}>
       <y-property name="slider" val={{slider}}>
       </y-property>
@@ -32,6 +32,23 @@
         }
         that.y.val("text").bind(that.$.text,that.shadowRoot)
       })
+
+      // Everything is initialized. Lets test stuff!
+      window.y_test = this;
+      window.y_test.y.val("stuff",{otherstuff:{nostuff:"this is no stuff"}})
+      setTimeout(function(){
+        var res = y_test.y.val("stuff");
+        if(!(y_test.nostuff === "this is no stuff")){
+          console.log("Deep inherit doesn't work!")
+        }
+        window.y_stuff_property.val = {nostuff: "this is also no stuff"};
+        setTimeout(function(){
+          if(!(y_test.nostuff === "this is also no stuff")){
+            console.log("Element val overwrite doesn't work")
+          }
+          console.log("Everything is fine :)");
+        },500)
+      },500);
     }
   })
   </script>

examples/XMPP/index.html

@@ -4,7 +4,7 @@
         <meta charset=utf-8 />
         <title>Y Example</title>
         <script src="../../build/browser/y.js"></script>
-        <script src="../../../y-connectors/y-xmpp/y-xmpp.js"></script>
+        <script src="../../../y-xmpp/y-xmpp.js"></script>
         <script src="./index.js"></script>
 </head>
 <body>

examples/XMPP/index.js

@@ -1,6 +1,6 @@
 
 
-connector = new Y.XMPP("testy-xmpp-json2");
+connector = new Y.XMPP().join("testy-xmpp-json3", {syncMode: "syncAll"});
 connector.debug = true
 
 y = new Y(connector);

lib/ConnectorAdapter.coffee

@@ -1,11 +1,15 @@
 
-
+ConnectorClass = require "./ConnectorClass"
 #
 # @param {Engine} engine The transformation engine
 # @param {HistoryBuffer} HB
 # @param {Array<Function>} execution_listener You must ensure that whenever an operation is executed, every function in this Array is called.
 #
 adaptConnector = (connector, engine, HB, execution_listener)->
+
+  for name, f of ConnectorClass
+    connector[name] = f
+
   send_ = (o)->
     if o.uid.creator is HB.getUserId() and (typeof o.uid.op_number isnt "string")
       connector.broadcast o
@@ -46,6 +50,7 @@ adaptConnector = (connector, engine, HB, execution_listener)->
   connector.getHB = getHB
   connector.applyHB = applyHB
 
+  connector.receive_handlers = []
   connector.receive_handlers.push (sender, op)->
     if op.uid.creator isnt HB.getUserId()
       engine.applyOp op

lib/ConnectorClass.coffee

@@ -0,0 +1,279 @@
+
+module.exports =
+  #
+  # @params new Connector(syncMode, role)
+  #   @param syncMode {String}  is either "syncAll" or "master-slave".
+  #   @param role {String} The role of this client
+  #            (slave or master (only used when syncMode is master-slave))
+  #
+  init: (options)->
+    req = (name, choices)=>
+      if options[name]?
+        if (not choices?) or choices.some((c)->c is options[name])
+          @[name] = options[name]
+        else
+          throw new Error "You can set the '"+name+"' option to one of the following choices: "+JSON.encode(choices)
+      else
+        throw new Error "You must specify "+name+", when initializing the Connector!"
+
+    req "syncMode", ["syncAll", "master-slave"]
+    req "role", ["master", "slave"]
+    req "user_id"
+    @on_user_id_set(@user_id)
+
+    # A Master should sync with everyone! TODO: really? - for now its safer this way!
+    if @role is "master"
+      @syncMode = "syncAll"
+
+    # is set to true when this is synced with all other connections
+    @is_synced = false
+    # true, iff the client is currently syncing
+    @is_syncing = false
+    # Peerjs Connections: key: conn-id, value: object
+    @connections = {}
+    # List of functions that shall process incoming data
+    # @receive_handlers = [] # this is already set in the ConnectorAdapter!
+
+    # whether this instance is bound to any y instance
+    @is_bound_to_y = false
+    @connections = {}
+    @current_sync_target = null
+
+  isRoleMaster: ->
+    @role is "master"
+
+  isRoleSlave: ->
+    @role is "slave"
+
+  findNewSyncTarget: ()->
+    @current_sync_target = null
+    if @syncMode is "syncAll"
+      for user, c of @connections
+        if not c.is_synced
+          @performSync user
+          break
+    null
+
+  userLeft: (user)->
+    delete @connections[user]
+    @findNewSyncTarget()
+
+  userJoined: (user, role)->
+    if not role?
+      throw new Error "Internal: You must specify the role of the joined user!"
+    # a user joined the room
+    @connections[user] =
+      is_synced : false
+
+    if (not @is_synced) or @syncMode is "syncAll"
+      if @syncMode is "syncAll"
+        @performSync user
+      else if role is "master"
+        # TODO: What if there are two masters? Prevent sending everything two times!
+        @performSyncWithMaster user
+
+
+  #
+  # Execute a function _when_ we are connected. If not connected, wait until connected.
+  # @param f {Function} Will be executed on the PeerJs-Connector context.
+  #
+  whenSynced: (args)->
+    if args.constructore is Function
+      args = [args]
+    if @is_synced
+      args[0].apply this, args[1..]
+    else
+      @compute_when_synced ?= []
+      @compute_when_synced.push args
+
+  #
+  # Execute an function when a message is received.
+  # @param f {Function} Will be executed on the PeerJs-Connector context. f will be called with (sender_id, broadcast {true|false}, message).
+  #
+  onReceive: (f)->
+    @receive_handlers.push f
+
+  ###
+  # Broadcast a message to all connected peers.
+  # @param message {Object} The message to broadcast.
+  #
+  broadcast: (message)->
+    throw new Error "You must implement broadcast!"
+
+  #
+  # Send a message to a peer, or set of peers
+  #
+  send: (peer_s, message)->
+    throw new Error "You must implement send!"
+  ###
+
+  #
+  # perform a sync with a specific user.
+  #
+  performSync: (user)->
+    if not @current_sync_target?
+      @current_sync_target = user
+      @send user,
+        sync_step: "getHB"
+        data: @getStateVector()
+
+  #
+  # When a master node joined the room, perform this sync with him. It will ask the master for the HB,
+  # and will broadcast his own HB
+  #
+  performSyncWithMaster: (user)->
+    if not @is_syncing
+      @current_sync_target = user
+      @is_syncing = true
+      @send user,
+        sync_step: "getHB"
+        send_again: "true"
+        data: []
+      hb = @getHB([]).hb
+      _hb = []
+      for o in hb
+        _hb.push o
+        if _hb.length > 30
+          @broadcast
+            sync_step: "applyHB_"
+            data: _hb
+          _hb = []
+      @broadcast
+        sync_step: "applyHB"
+        data: _hb
+  #
+  # You are sure that all clients are synced, call this function.
+  #
+  setStateSynced: ()->
+    if not @is_synced
+      @is_synced = true
+      for f in @compute_when_synced
+        f()
+      delete @compute_when_synced
+      null
+
+  #
+  # You received a raw message, and you know that it is intended for to Yjs. Then call this function.
+  #
+  receiveMessage: (sender, res)->
+    if not res.sync_step?
+      for f in @receive_handlers
+        f sender, res
+    else
+      if res.sync_step is "getHB"
+        data = @getHB(res.data)
+        hb = data.hb
+        _hb = []
+        if @is_synced
+          sendApplyHB =  ()->
+            
+         for o in hb
+          _hb.push o
+          if _hb.length > 30
+            @send sender,
+              sync_step: "applyHB_"
+              data: _hb
+            _hb = []
+        if @is_synced
+          @send   sender,
+            sync_s  tep: "applyHB"
+            data:   _hb
+        
+        if res.send_again?
+          send_again = do (sv = data.state_vector)=>
+            ()=>
+              hb = @getHB(sv).hb
+              @send sender,
+                sync_step: "applyHB",
+                data: hb
+                sent_again: "true"
+          setTimeout send_again, 3000
+      else if res.sync_step is "applyHB"
+        @applyHB(res.data)
+
+        if (@syncMode is "syncAll" or res.sent_again?) and not @is_synced
+          @setStateSynced()
+          @connections[sender].is_synced = true
+          @findNewSyncTarget()
+
+      else if res.sync_step is "applyHB_"
+        @applyHB(res.data)
+
+
+  # Currently, the HB encodes operations as JSON. For the moment I want to keep it
+  # that way. Maybe we support encoding in the HB as XML in the future, but for now I don't want
+  # too much overhead. Y is very likely to get changed a lot in the future
+  #
+  # Because we don't want to encode JSON as string (with character escaping, wich makes it pretty much unreadable)
+  # we encode the JSON as XML.
+  #
+  # When the HB support encoding as XML, the format should look pretty much like this.
+
+  # does not support primitive values as array elements
+  # expects an ltx (less than xml) object
+  parseMessageFromXml: (m)->
+    parse_array = (node)->
+      for n in node.children
+        if n.getAttribute("isArray") is "true"
+          parse_array n
+        else
+          parse_object n
+
+    parse_object = (node)->
+      json = {}
+      for name, value  of node.attrs
+        int = parseInt(value)
+        if isNaN(int) or (""+int) isnt value
+          json[name] = value
+        else
+          json[name] = int
+      for n in node.children
+        name = n.name
+        if n.getAttribute("isArray") is "true"
+          json[name] = parse_array n
+        else
+          json[name] = parse_object n
+      json
+    parse_object m
+
+  # encode message in xml
+  # we use string because Strophe only accepts an "xml-string"..
+  # So {a:4,b:{c:5}} will look like
+  # <y a="4">
+  #   <b c="5"></b>
+  # </y>
+  # m - ltx element
+  # json - guess it ;)
+  #
+  encodeMessageToXml: (m, json)->
+    # attributes is optional
+    encode_object = (m, json)->
+      for name,value of json
+        if not value?
+          # nop
+        else if value.constructor is Object
+          encode_object m.c(name), value
+        else if value.constructor is Array
+          encode_array m.c(name), value
+        else
+          m.setAttribute(name,value)
+      m
+    encode_array = (m, array)->
+      m.setAttribute("isArray","true")
+      for e in array
+        if e.constructor is Object
+          encode_object m.c("array-element"), e
+        else
+          encode_array m.c("array-element"), e
+      m
+    if json.constructor is Object
+      encode_object m.c("y",{xmlns:"http://y.ninja/connector-stanza"}), json
+    else if json.constructor is Array
+      encode_array m.c("y",{xmlns:"http://y.ninja/connector-stanza"}), json
+    else
+      throw new Error "I can't encode this json!"
+
+  setIsBoundToY: ()->
+    @on_bound_to_y?()
+    delete @when_bound_to_y
+    @is_bound_to_y = true

lib/HistoryBuffer.coffee

@@ -31,9 +31,9 @@ class HistoryBuffer
         throw new Error "You are re-assigning an old user id - this is not (yet) possible!"
       @buffer[id] = own
       delete @buffer[@user_id]
-
-    @operation_counter[id] = @operation_counter[@user_id]
-    delete @operation_counter[@user_id]
+    if @operation_counter[@user_id]?
+      @operation_counter[id] = @operation_counter[@user_id]
+      delete @operation_counter[@user_id]
     @user_id = id
 
   emptyGarbage: ()=>
@@ -196,7 +196,7 @@ class HistoryBuffer
   # you renew your own state_vector to the state_vector of the other user
   renewStateVector: (state_vector)->
     for user,state of state_vector
-      if (not @operation_counter[user]?) or (@operation_counter[user] < state_vector[user])
+      if ((not @operation_counter[user]?) or (@operation_counter[user] < state_vector[user])) and state_vector[user]?
         @operation_counter[user] = state_vector[user]
 
   #

lib/Types/StructuredTypes.coffee

@@ -184,7 +184,7 @@ module.exports = (HB)->
     #
     #
     callEventDecorator: (events)->
-      if not @isDeleted()
+      if not (@isDeleted() or @getLastOperation().isDeleted())
         for event in events
           for name,prop of @event_properties
             event[name] = prop

lib/y.coffee

@@ -6,11 +6,11 @@ adaptConnector = require "./ConnectorAdapter"
 
 createY = (connector)->
   user_id = null
-  if connector.id?
-    user_id = connector.id # TODO: change to getUniqueId()
+  if connector.user_id?
+    user_id = connector.user_id # TODO: change to getUniqueId()
   else
     user_id = "_temp"
-    connector.onUserIdSet (id)->
+    connector.on_user_id_set = (id)->
       user_id = id
       HB.resetUserId id
   HB = new HistoryBuffer user_id

y-object.html

@@ -1,8 +1,8 @@
-
+<link rel="import" href="../polymer/polymer.html">
 
 <polymer-element name="y-object" hidden attributes="val connector y">
 </polymer-element>
 <polymer-element name="y-property" hidden attributes="val name y">
 </polymer-element>
 
-<script src="./build/browser/y-object.js"></script>
+<script src="./y-object.js"></script>