/// <inheritdoc />
            public override bool ShouldEditTableColumn(NSOutlineView outlineView, NSTableColumn tableColumn, NSObject item)
            {
                DebugDelegatePrint("***************** SHOULD EDIT CALLED");
                var canEdit = MenuLayoutCommandGroup.EditLongNameCommand.CanExecute(ViewModel.HostPCMenuLayout);

                if (canEdit)
                {
                    var treeNode = item as NSTreeNode;
                    EditingColumn = (EditableOutlineViewColumn)outlineView.TableColumns().ToList().IndexOf(tableColumn);
                    var    editingObject = treeNode.RepresentedObject as FileNodeViewModel;
                    string initialValue  = null;
                    int    maxLength     = -1;
                    switch (EditingColumn)
                    {
                    case EditableOutlineViewColumn.LongName:
                        canEdit      = true;
                        initialValue = editingObject.LongName;
                        maxLength    = INTV.LtoFlash.Model.FileSystemConstants.MaxLongNameLength;
                        break;

                    case EditableOutlineViewColumn.ShortName:
                        canEdit      = true;
                        initialValue = editingObject.ShortName;
                        maxLength    = INTV.LtoFlash.Model.FileSystemConstants.MaxShortNameLength;
                        break;

                    default:
                        ErrorReporting.ReportError("Unsupported edit column");
                        break;
                    }
                    if (InPlaceEditor == null)
                    {
                        InPlaceEditor = new TextCellInPlaceEditor(outlineView);
                    }
                    InPlaceEditor.EditingObject    = editingObject;
                    InPlaceEditor.InitialValue     = initialValue;
                    InPlaceEditor.MaxLength        = maxLength;
                    InPlaceEditor.IsValidCharacter = (c) => INTV.Core.Model.Grom.Characters.Contains(c);
                    InPlaceEditor.EditorClosed    += InPlaceEditor_EditorClosed;
                    InPlaceEditor.BeginEdit();
                }
                else if ((SingleInstanceApplication.Current.LastKeyPressed == TextCellInPlaceEditor.ReturnKey) && (SingleInstanceApplication.Current.LastKeyPressedTimestamp != ReturnKeyTimestamp))
                {
                    // return was pressed -- do we need to check for <enter> vs. <return> (on laptops, Fn+return)?
                    ReturnKeyTimestamp = SingleInstanceApplication.Current.LastKeyPressedTimestamp;
                    if (!outlineView.IsExpandable(item) && DownloadCommandGroup.DownloadAndPlayCommand.CanExecute(ViewModel))
                    {
                        var program = ViewModel.HostPCMenuLayout.CurrentSelection as ProgramViewModel;
                        if ((program != null) && DownloadCommandGroup.DownloadAndPlayCommand.CanExecute(ViewModel))
                        {
                            DownloadCommandGroup.DownloadAndPlay(ViewModel.ActiveLtoFlashDevice.Device, program.ProgramDescription);
                        }
                    }
                    else
                    {
                        // On a directory. If so, toggle state.
                        if (outlineView.IsItemExpanded(item))
                        {
                            outlineView.CollapseItem(item);
                        }
                        else
                        {
                            outlineView.ExpandItem(item);
                        }
                    }
                }
                return(canEdit);
            }