Exemplo n.º 1
0
        /// <summary>
        ///     Collapse a set of nodes in a given workspace.
        /// </summary>
        /// <param name="selectedNodes"> The function definition for the user-defined node </param>
        /// <param name="currentWorkspace"> The workspace where</param>
        /// <param name="isTestMode"></param>
        /// <param name="args"></param>
        public CustomNodeWorkspaceModel Collapse(
            IEnumerable <NodeModel> selectedNodes, WorkspaceModel currentWorkspace,
            bool isTestMode, FunctionNamePromptEventArgs args)
        {
            var selectedNodeSet = new HashSet <NodeModel>(selectedNodes);
            // Note that undoable actions are only recorded for the "currentWorkspace",
            // the nodes which get moved into "newNodeWorkspace" are not recorded for undo,
            // even in the new workspace. Their creations will simply be treated as part of
            // the opening of that new workspace (i.e. when a user opens a file, she will
            // not expect the nodes that show up to be undoable).
            //
            // After local nodes are moved into "newNodeWorkspace" as the result of
            // conversion, if user performs an undo, new set of nodes will be created in
            // "currentWorkspace" (not moving those nodes in the "newNodeWorkspace" back
            // into "currentWorkspace"). In another word, undo recording is on a per-
            // workspace basis, it does not work across different workspaces.
            //
            UndoRedoRecorder undoRecorder = currentWorkspace.UndoRecorder;

            CustomNodeWorkspaceModel newWorkspace;

            using (undoRecorder.BeginActionGroup())
            {
                #region Determine Inputs and Outputs

                //Step 1: determine which nodes will be inputs to the new node
                var inputs =
                    new HashSet <Tuple <NodeModel, int, Tuple <int, NodeModel> > >(
                        selectedNodeSet.SelectMany(
                            node =>
                            Enumerable.Range(0, node.InPortData.Count)
                            .Where(node.HasConnectedInput)
                            .Select(data => Tuple.Create(node, data, node.Inputs[data]))
                            .Where(input => !selectedNodeSet.Contains(input.Item3.Item2))));

                var outputs =
                    new HashSet <Tuple <NodeModel, int, Tuple <int, NodeModel> > >(
                        selectedNodeSet.SelectMany(
                            node =>
                            Enumerable.Range(0, node.OutPortData.Count)
                            .Where(node.HasOutput)
                            .SelectMany(
                                data =>
                                node.Outputs[data].Where(
                                    output => !selectedNodeSet.Contains(output.Item2))
                                .Select(output => Tuple.Create(node, data, output)))));

                #endregion

                #region Detect 1-node holes (higher-order function extraction)

                Log(Properties.Resources.CouldNotRepairOneNodeHoles, WarningLevel.Mild);
                // http://adsk-oss.myjetbrains.com/youtrack/issue/MAGN-5603

                //var curriedNodeArgs =
                //    new HashSet<NodeModel>(
                //        inputs.Select(x => x.Item3.Item2)
                //            .Intersect(outputs.Select(x => x.Item3.Item2))).Select(
                //                outerNode =>
                //                {
                //                    //var node = new Apply1();
                //                    var node = newNodeWorkspace.AddNode<Apply1>();
                //                    node.SetNickNameFromAttribute();

                //                    node.DisableReporting();

                //                    node.X = outerNode.X;
                //                    node.Y = outerNode.Y;

                //                    //Fetch all input ports
                //                    // in order
                //                    // that have inputs
                //                    // and whose input comes from an inner node
                //                    List<int> inPortsConnected =
                //                        Enumerable.Range(0, outerNode.InPortData.Count)
                //                            .Where(
                //                                x =>
                //                                    outerNode.HasInput(x)
                //                                        && selectedNodeSet.Contains(
                //                                            outerNode.Inputs[x].Item2))
                //                            .ToList();

                //                    var nodeInputs =
                //                        outputs.Where(output => output.Item3.Item2 == outerNode)
                //                            .Select(
                //                                output =>
                //                                    new
                //                                    {
                //                                        InnerNodeInputSender = output.Item1,
                //                                        OuterNodeInPortData = output.Item3.Item1
                //                                    })
                //                            .ToList();

                //                    nodeInputs.ForEach(_ => node.AddInput());

                //                    node.RegisterAllPorts();

                //                    return
                //                        new
                //                        {
                //                            OuterNode = outerNode,
                //                            InnerNode = node,
                //                            Outputs =
                //                                inputs.Where(
                //                                    input => input.Item3.Item2 == outerNode)
                //                                    .Select(input => input.Item3.Item1),
                //                            Inputs = nodeInputs,
                //                            OuterNodePortDataList = inPortsConnected
                //                        };
                //                }).ToList();

                #endregion

                #region UI Positioning Calculations

                double avgX = selectedNodeSet.Average(node => node.X);
                double avgY = selectedNodeSet.Average(node => node.Y);

                double leftMost  = selectedNodeSet.Min(node => node.X);
                double topMost   = selectedNodeSet.Min(node => node.Y);
                double rightMost = selectedNodeSet.Max(node => node.X + node.Width);

                double leftShift = leftMost - 250;

                #endregion

                #region Handle full selected connectors

                // Step 2: Determine all the connectors whose start/end owners are
                // both in the selection set, and then move them from the current
                // workspace into the new workspace.

                var fullySelectedConns = new HashSet <ConnectorModel>(
                    currentWorkspace.Connectors.Where(
                        conn =>
                {
                    bool startSelected = selectedNodeSet.Contains(conn.Start.Owner);
                    bool endSelected   = selectedNodeSet.Contains(conn.End.Owner);
                    return(startSelected && endSelected);
                }));

                foreach (var connector in fullySelectedConns)
                {
                    undoRecorder.RecordDeletionForUndo(connector);
                    connector.Delete();
                }

                #endregion

                #region Handle partially selected connectors

                // Step 3: Partially selected connectors (either one of its start
                // and end owners is in the selection) are to be destroyed.

                var partiallySelectedConns =
                    currentWorkspace.Connectors.Where(
                        conn =>
                        selectedNodeSet.Contains(conn.Start.Owner) ||
                        selectedNodeSet.Contains(conn.End.Owner)).ToList();

                foreach (var connector in partiallySelectedConns)
                {
                    undoRecorder.RecordDeletionForUndo(connector);
                    connector.Delete();
                }

                #endregion

                #region Transfer nodes and connectors to new workspace

                var newNodes = new List <NodeModel>();

                // Step 4: move all nodes to new workspace remove from old
                // PB: This could be more efficiently handled by a copy paste, but we
                // are preservering the node
                foreach (var node in selectedNodeSet)
                {
                    undoRecorder.RecordDeletionForUndo(node);
                    currentWorkspace.RemoveNode(node);

                    // Assign a new guid to this node, otherwise when node is
                    // compiled to AST, literally it is still in global scope
                    // instead of in function scope.
                    node.GUID = Guid.NewGuid();
                    node.RenderPackages.Clear();

                    // shit nodes
                    node.X = node.X - leftShift;
                    node.Y = node.Y - topMost;

                    newNodes.Add(node);
                }

                foreach (var conn in fullySelectedConns)
                {
                    ConnectorModel.Make(conn.Start.Owner, conn.End.Owner, conn.Start.Index, conn.End.Index);
                }

                #endregion

                #region Process inputs

                var inConnectors       = new List <Tuple <NodeModel, int> >();
                var uniqueInputSenders = new Dictionary <Tuple <NodeModel, int>, Symbol>();

                //Step 3: insert variables (reference step 1)
                foreach (var input in Enumerable.Range(0, inputs.Count).Zip(inputs, Tuple.Create))
                {
                    int inputIndex = input.Item1;

                    NodeModel inputReceiverNode = input.Item2.Item1;
                    int       inputReceiverData = input.Item2.Item2;

                    NodeModel inputNode = input.Item2.Item3.Item2;
                    int       inputData = input.Item2.Item3.Item1;

                    Symbol node;

                    var key = Tuple.Create(inputNode, inputData);
                    if (uniqueInputSenders.ContainsKey(key))
                    {
                        node = uniqueInputSenders[key];
                    }
                    else
                    {
                        inConnectors.Add(Tuple.Create(inputNode, inputData));

                        node = new Symbol
                        {
                            InputSymbol = inputReceiverNode.InPortData[inputReceiverData].NickName,
                            X           = 0
                        };

                        // Try to figure out the type of input of custom node
                        // from the type of input of selected node. There are
                        // two kinds of nodes whose input type are available:
                        // function node and custom node.
                        List <Library.TypedParameter> parameters = null;
                        if (inputReceiverNode is Function)
                        {
                            var func = inputReceiverNode as Function;
                            parameters = func.Controller.Definition.Parameters.ToList();
                        }
                        else if (inputReceiverNode is DSFunctionBase)
                        {
                            var dsFunc = inputReceiverNode as DSFunctionBase;
                            parameters = dsFunc.Controller.Definition.Parameters.ToList();
                        }

                        // so the input of custom node has format
                        //    input_var_name : type
                        if (parameters != null && parameters.Count() > inputReceiverData)
                        {
                            var typeName = parameters[inputReceiverData].DisplayTypeName;
                            if (!string.IsNullOrEmpty(typeName))
                            {
                                node.InputSymbol += " : " + typeName;
                            }
                        }

                        node.SetNickNameFromAttribute();
                        node.Y = inputIndex * (50 + node.Height);

                        uniqueInputSenders[key] = node;

                        newNodes.Add(node);
                    }

                    //var curriedNode = curriedNodeArgs.FirstOrDefault(x => x.OuterNode == inputNode);

                    //if (curriedNode == null)
                    //{
                    ConnectorModel.Make(node, inputReceiverNode, 0, inputReceiverData);
                    //}
                    //else
                    //{
                    //    //Connect it to the applier
                    //    newNodeWorkspace.AddConnection(node, curriedNode.InnerNode, 0, 0);

                    //    //Connect applier to the inner input receive
                    //    newNodeWorkspace.AddConnection(
                    //        curriedNode.InnerNode,
                    //        inputReceiverNode,
                    //        0,
                    //        inputReceiverData);
                    //}
                }

                #endregion

                #region Process outputs

                //List of all inner nodes to connect an output. Unique.
                var outportList = new List <Tuple <NodeModel, int> >();

                var outConnectors = new List <Tuple <NodeModel, int, int> >();

                int i = 0;
                if (outputs.Any())
                {
                    foreach (var output in outputs)
                    {
                        if (outportList.All(x => !(x.Item1 == output.Item1 && x.Item2 == output.Item2)))
                        {
                            NodeModel outputSenderNode = output.Item1;
                            int       outputSenderData = output.Item2;

                            //NodeModel outputReceiverNode = output.Item3.Item2;

                            //if (curriedNodeArgs.Any(x => x.OuterNode == outputReceiverNode))
                            //    continue;

                            outportList.Add(Tuple.Create(outputSenderNode, outputSenderData));

                            //Create Symbol Node
                            var node = new Output
                            {
                                Symbol = outputSenderNode.OutPortData[outputSenderData].NickName,
                                X      = rightMost + 75 - leftShift
                            };

                            node.Y = i * (50 + node.Height);

                            node.SetNickNameFromAttribute();

                            newNodes.Add(node);
                            ConnectorModel.Make(outputSenderNode, node, outputSenderData, 0);

                            i++;
                        }
                    }

                    //Connect outputs to new node
                    outConnectors.AddRange(
                        from output in outputs
                        let outputSenderNode = output.Item1
                                               let outputSenderData = output.Item2
                                                                      let outputReceiverData = output.Item3.Item1
                                                                                               let outputReceiverNode = output.Item3.Item2
                                                                                                                        select
                                                                                                                        Tuple.Create(
                            outputReceiverNode,
                            outportList.FindIndex(
                                x => x.Item1 == outputSenderNode && x.Item2 == outputSenderData),
                            outputReceiverData));
                }
                else
                {
                    foreach (var hanging in
                             selectedNodeSet.SelectMany(
                                 node =>
                                 Enumerable.Range(0, node.OutPortData.Count)
                                 .Where(port => !node.HasOutput(port))
                                 .Select(port => new { node, port })).Distinct())
                    {
                        //Create Symbol Node
                        var node = new Output
                        {
                            Symbol = hanging.node.OutPortData[hanging.port].NickName,
                            X      = rightMost + 75 - leftShift
                        };
                        node.Y = i * (50 + node.Height);
                        node.SetNickNameFromAttribute();

                        newNodes.Add(node);
                        ConnectorModel.Make(hanging.node, node, hanging.port, 0);

                        i++;
                    }
                }

                #endregion

                var newId = Guid.NewGuid();
                newWorkspace = new CustomNodeWorkspaceModel(
                    args.Name,
                    args.Category,
                    args.Description,
                    nodeFactory,
                    newNodes,
                    Enumerable.Empty <NoteModel>(),
                    0,
                    0,
                    newId, currentWorkspace.ElementResolver, string.Empty);

                newWorkspace.HasUnsavedChanges = true;

                RegisterCustomNodeWorkspace(newWorkspace);

                var collapsedNode = CreateCustomNodeInstance(newId, isTestMode: isTestMode);
                collapsedNode.X = avgX;
                collapsedNode.Y = avgY;
                currentWorkspace.AddNode(collapsedNode, centered: false);
                undoRecorder.RecordCreationForUndo(collapsedNode);

                foreach (var connector in
                         inConnectors.Select((x, idx) => new { node = x.Item1, from = x.Item2, to = idx })
                         .Select(
                             nodeTuple =>
                             ConnectorModel.Make(
                                 nodeTuple.node,
                                 collapsedNode,
                                 nodeTuple.@from,
                                 nodeTuple.to))
                         .Where(connector => connector != null))
                {
                    undoRecorder.RecordCreationForUndo(connector);
                }

                foreach (var connector in
                         outConnectors.Select(
                             nodeTuple =>
                             ConnectorModel.Make(
                                 collapsedNode,
                                 nodeTuple.Item1,
                                 nodeTuple.Item2,
                                 nodeTuple.Item3)).Where(connector => connector != null))
                {
                    undoRecorder.RecordCreationForUndo(connector);
                }
            }
            return(newWorkspace);
        }
Exemplo n.º 2
0
        /// <summary>
        ///     Collapse a set of nodes in a given workspace.
        /// </summary>
        /// <param name="dynamoModel">The current DynamoModel</param>
        /// <param name="selectedNodes"> The function definition for the user-defined node </param>
        /// <param name="currentWorkspace"> The workspace where</param>
        /// <param name="args"></param>
        public static void Collapse(DynamoModel dynamoModel, IEnumerable <NodeModel> selectedNodes, WorkspaceModel currentWorkspace, FunctionNamePromptEventArgs args = null)
        {
            var selectedNodeSet = new HashSet <NodeModel>(selectedNodes);

            if (args == null || !args.Success)
            {
                args = new FunctionNamePromptEventArgs();
                dynamoModel.OnRequestsFunctionNamePrompt(null, args);


                if (!args.Success)
                {
                    return;
                }
            }

            // Note that undoable actions are only recorded for the "currentWorkspace",
            // the nodes which get moved into "newNodeWorkspace" are not recorded for undo,
            // even in the new workspace. Their creations will simply be treated as part of
            // the opening of that new workspace (i.e. when a user opens a file, she will
            // not expect the nodes that show up to be undoable).
            //
            // After local nodes are moved into "newNodeWorkspace" as the result of
            // conversion, if user performs an undo, new set of nodes will be created in
            // "currentWorkspace" (not moving those nodes in the "newNodeWorkspace" back
            // into "currentWorkspace"). In another word, undo recording is on a per-
            // workspace basis, it does not work across different workspaces.
            //
            UndoRedoRecorder undoRecorder = currentWorkspace.UndoRecorder;

            undoRecorder.BeginActionGroup();

            var newNodeWorkspace = new CustomNodeWorkspaceModel(dynamoModel, args.Name, args.Category, args.Description, 0, 0)
            {
                WatchChanges      = false,
                HasUnsavedChanges = true
            };

            var newNodeDefinition = new CustomNodeDefinition(Guid.NewGuid())
            {
                WorkspaceModel = newNodeWorkspace
            };

            currentWorkspace.DisableReporting();

            #region Determine Inputs and Outputs

            //Step 1: determine which nodes will be inputs to the new node
            var inputs = new HashSet <Tuple <NodeModel, int, Tuple <int, NodeModel> > >(
                selectedNodeSet.SelectMany(
                    node => Enumerable.Range(0, node.InPortData.Count).Where(node.HasConnectedInput)
                    .Select(data => Tuple.Create(node, data, node.Inputs[data]))
                    .Where(input => !selectedNodeSet.Contains(input.Item3.Item2))));

            var outputs = new HashSet <Tuple <NodeModel, int, Tuple <int, NodeModel> > >(
                selectedNodeSet.SelectMany(
                    node => Enumerable.Range(0, node.OutPortData.Count).Where(node.HasOutput).SelectMany(
                        data => node.Outputs[data]
                        .Where(output => !selectedNodeSet.Contains(output.Item2))
                        .Select(output => Tuple.Create(node, data, output)))));

            #endregion

            #region Detect 1-node holes (higher-order function extraction)

            var curriedNodeArgs =
                new HashSet <NodeModel>(
                    inputs
                    .Select(x => x.Item3.Item2)
                    .Intersect(outputs.Select(x => x.Item3.Item2)))
                .Select(
                    outerNode =>
            {
                //var node = new Apply1();
                var node = newNodeWorkspace.AddNode <Apply1>();
                node.SetNickNameFromAttribute();

                node.DisableReporting();

                node.X = outerNode.X;
                node.Y = outerNode.Y;

                //Fetch all input ports
                // in order
                // that have inputs
                // and whose input comes from an inner node
                List <int> inPortsConnected = Enumerable.Range(0, outerNode.InPortData.Count)
                                              .Where(
                    x =>
                    outerNode.HasInput(x) &&
                    selectedNodeSet.Contains(
                        outerNode.Inputs[x].Item2))
                                              .ToList();

                var nodeInputs = outputs
                                 .Where(output => output.Item3.Item2 == outerNode)
                                 .Select(
                    output =>
                    new
                {
                    InnerNodeInputSender = output.Item1,
                    OuterNodeInPortData  = output.Item3.Item1
                }).ToList();

                nodeInputs.ForEach(_ => node.AddInput());

                node.RegisterAllPorts();

                return(new
                {
                    OuterNode = outerNode,
                    InnerNode = node,
                    Outputs = inputs.Where(input => input.Item3.Item2 == outerNode)
                              .Select(input => input.Item3.Item1),
                    Inputs = nodeInputs,
                    OuterNodePortDataList = inPortsConnected
                });
            }).ToList();

            #endregion

            #region UI Positioning Calculations

            double avgX = selectedNodeSet.Average(node => node.X);
            double avgY = selectedNodeSet.Average(node => node.Y);

            double leftMost  = selectedNodeSet.Min(node => node.X);
            double topMost   = selectedNodeSet.Min(node => node.Y);
            double rightMost = selectedNodeSet.Max(node => node.X + node.Width);

            #endregion

            #region Handle full selected connectors

            // Step 2: Determine all the connectors whose start/end owners are
            // both in the selection set, and then move them from the current
            // workspace into the new workspace.

            var fullySelectedConns = new HashSet <ConnectorModel>(
                currentWorkspace.Connectors.Where(conn =>
            {
                bool startSelected = selectedNodeSet.Contains(conn.Start.Owner);
                bool endSelected   = selectedNodeSet.Contains(conn.End.Owner);
                return(startSelected && endSelected);
            }));

            foreach (var ele in fullySelectedConns)
            {
                undoRecorder.RecordDeletionForUndo(ele);
                currentWorkspace.Connectors.Remove(ele);
            }

            #endregion

            #region Handle partially selected connectors

            // Step 3: Partially selected connectors (either one of its start
            // and end owners is in the selection) are to be destroyed.

            var partiallySelectedConns =
                currentWorkspace.Connectors.Where(
                    conn =>
                    selectedNodeSet.Contains(conn.Start.Owner) ||
                    selectedNodeSet.Contains(conn.End.Owner)).ToList();

            foreach (ConnectorModel connector in partiallySelectedConns)
            {
                undoRecorder.RecordDeletionForUndo(connector);
                connector.NotifyConnectedPortsOfDeletion();
                currentWorkspace.Connectors.Remove(connector);
            }

            #endregion

            #region Transfer nodes and connectors to new workspace

            // Step 4: move all nodes to new workspace remove from old
            // PB: This could be more efficiently handled by a copy paste, but we
            // are preservering the node
            foreach (var ele in selectedNodeSet)
            {
                undoRecorder.RecordDeletionForUndo(ele);
                ele.SaveResult = false;
                currentWorkspace.Nodes.Remove(ele);
                ele.Workspace = newNodeWorkspace;
            }

            //  add to new
            newNodeWorkspace.Nodes.AddRange(selectedNodeSet);
            newNodeWorkspace.Connectors.AddRange(fullySelectedConns);

            foreach (var node in newNodeWorkspace.Nodes)
            {
                node.DisableReporting();
            }

            double leftShift = leftMost - 250;
            foreach (NodeModel node in newNodeWorkspace.Nodes)
            {
                node.X = node.X - leftShift;
                node.Y = node.Y - topMost;
            }

            #endregion


            #region Process inputs

            var inConnectors       = new List <Tuple <NodeModel, int> >();
            var uniqueInputSenders = new Dictionary <Tuple <NodeModel, int>, Symbol>();

            //Step 3: insert variables (reference step 1)
            foreach (var input in Enumerable.Range(0, inputs.Count).Zip(inputs, Tuple.Create))
            {
                int inputIndex = input.Item1;

                NodeModel inputReceiverNode = input.Item2.Item1;
                int       inputReceiverData = input.Item2.Item2;

                NodeModel inputNode = input.Item2.Item3.Item2;
                int       inputData = input.Item2.Item3.Item1;

                Symbol node;

                var key = Tuple.Create(inputNode, inputData);
                if (uniqueInputSenders.ContainsKey(key))
                {
                    node = uniqueInputSenders[key];
                }
                else
                {
                    inConnectors.Add(Tuple.Create(inputNode, inputData));

                    node             = newNodeWorkspace.AddNode <Symbol>();
                    node.InputSymbol = inputReceiverNode.InPortData[inputReceiverData].NickName;

                    node.SetNickNameFromAttribute();

                    node.DisableReporting();

                    node.X = 0;
                    node.Y = inputIndex * (50 + node.Height);

                    uniqueInputSenders[key] = node;
                }

                var curriedNode = curriedNodeArgs.FirstOrDefault(x => x.OuterNode == inputNode);

                if (curriedNode == null)
                {
                    newNodeWorkspace.AddConnection(node,
                                                   inputReceiverNode,
                                                   0,
                                                   inputReceiverData);
                }
                else
                {
                    //Connect it to the applier
                    newNodeWorkspace.AddConnection(node,
                                                   curriedNode.InnerNode,
                                                   0,
                                                   0);

                    //Connect applier to the inner input receive
                    newNodeWorkspace.AddConnection(
                        curriedNode.InnerNode,
                        inputReceiverNode,
                        0,
                        inputReceiverData);
                }
            }

            #endregion

            #region Process outputs

            //List of all inner nodes to connect an output. Unique.
            var outportList = new List <Tuple <NodeModel, int> >();

            var outConnectors = new List <Tuple <NodeModel, int, int> >();

            int i = 0;
            if (outputs.Any())
            {
                foreach (var output in outputs)
                {
                    if (outportList.All(x => !(x.Item1 == output.Item1 && x.Item2 == output.Item2)))
                    {
                        NodeModel outputSenderNode   = output.Item1;
                        int       outputSenderData   = output.Item2;
                        NodeModel outputReceiverNode = output.Item3.Item2;

                        if (curriedNodeArgs.Any(x => x.OuterNode == outputReceiverNode))
                        {
                            continue;
                        }

                        outportList.Add(Tuple.Create(outputSenderNode, outputSenderData));

                        //Create Symbol Node
                        var node = newNodeWorkspace.AddNode <Output>();
                        node.Symbol = outputSenderNode.OutPortData[outputSenderData].NickName;

                        node.SetNickNameFromAttribute();
                        node.DisableReporting();

                        node.X = rightMost + 75 - leftShift;
                        node.Y = i * (50 + node.Height);

                        newNodeWorkspace.AddConnection(
                            outputSenderNode,
                            node,
                            outputSenderData,
                            0);

                        i++;
                    }
                }

                //Connect outputs to new node
                foreach (var output in outputs)
                {
                    //Node to be connected to in CurrentWorkspace
                    NodeModel outputSenderNode = output.Item1;

                    //Port to be connected to on outPutNode_outer
                    int outputSenderData = output.Item2;

                    int       outputReceiverData = output.Item3.Item1;
                    NodeModel outputReceiverNode = output.Item3.Item2;

                    var curriedNode = curriedNodeArgs.FirstOrDefault(x => x.OuterNode == outputReceiverNode);

                    if (curriedNode == null)
                    {
                        // we create the connectors in the current space later
                        outConnectors.Add(
                            Tuple.Create(
                                outputReceiverNode,
                                outportList.FindIndex(
                                    x => x.Item1 == outputSenderNode && x.Item2 == outputSenderData),
                                outputReceiverData));
                    }
                    else
                    {
                        int targetPort =
                            curriedNode.Inputs.First(x => x.InnerNodeInputSender == outputSenderNode)
                            .OuterNodeInPortData;

                        int targetPortIndex = curriedNode.OuterNodePortDataList.IndexOf(targetPort);

                        //Connect it (new dynConnector)
                        newNodeWorkspace.AddConnection(
                            outputSenderNode,
                            curriedNode.InnerNode,
                            outputSenderData,
                            targetPortIndex + 1);
                    }
                }
            }
            else
            {
                foreach (var hanging in
                         selectedNodeSet.SelectMany(
                             node =>
                             Enumerable.Range(0, node.OutPortData.Count)
                             .Where(port => !node.HasOutput(port))
                             .Select(port => new { node, port })).Distinct())
                {
                    //Create Symbol Node
                    var node = newNodeWorkspace.AddNode <Output>();
                    node.Symbol = hanging.node.OutPortData[hanging.port].NickName;

                    node.SetNickNameFromAttribute();

                    //store the element in the elements list
                    node.DisableReporting();

                    node.X = rightMost + 75 - leftShift;
                    node.Y = i * (50 + node.Height);

                    newNodeWorkspace.AddConnection(
                        hanging.node,
                        node,
                        hanging.port,
                        0);

                    i++;
                }
            }

            #endregion

            // save and load the definition from file
            newNodeDefinition.SyncWithWorkspace(dynamoModel, true, true);
            dynamoModel.Workspaces.Add(newNodeWorkspace);

            string name          = newNodeDefinition.FunctionId.ToString();
            var    collapsedNode = currentWorkspace.AddNode(avgX, avgY, name);
            undoRecorder.RecordCreationForUndo(collapsedNode);

            // place the node as intended, not centered
            collapsedNode.X = avgX;
            collapsedNode.Y = avgY;

            collapsedNode.DisableReporting();

            foreach (var nodeTuple in inConnectors.Select((x, idx) => new { node = x.Item1, from = x.Item2, to = idx }))
            {
                var conn = currentWorkspace.AddConnection(
                    nodeTuple.node,
                    collapsedNode,
                    nodeTuple.from,
                    nodeTuple.to);

                if (conn != null)
                {
                    undoRecorder.RecordCreationForUndo(conn);
                }
            }

            foreach (var nodeTuple in outConnectors)
            {
                var conn = currentWorkspace.AddConnection(
                    collapsedNode,
                    nodeTuple.Item1,
                    nodeTuple.Item2,
                    nodeTuple.Item3);

                if (conn != null)
                {
                    undoRecorder.RecordCreationForUndo(conn);
                }
            }

            undoRecorder.EndActionGroup();
            collapsedNode.EnableReporting();
            currentWorkspace.EnableReporting();

            foreach (var node in newNodeWorkspace.Nodes)
            {
                node.EnableReporting();
            }

            newNodeWorkspace.WatchChanges = true;
        }