public void NewEmbeddedFile()
        {
            BFRESGroupNode   group = new BFRESGroupNode();
            ExternalFileData fshu  = new ExternalFileData("NewFile", new byte[0]);

            group.AddNode(fshu, "NewFile");
            SetupAddedNode(group, fshu);
        }
        protected override void parseContentDocuments(List <string> spineOfContentDocuments,
                                                      Dictionary <string, string> spineAttributes,
                                                      List <Dictionary <string, string> > spineItemsAttributes,
                                                      string coverImagePath, string navDocPath)
        {
            if (spineOfContentDocuments == null || spineOfContentDocuments.Count <= 0)
            {
                return;
            }
            // assign obi project file path to xuk path to prevent creation of xukspine file.
            XukPath = m_session.Path;
            //Console.WriteLine(XukPath);

            Presentation spinePresentation = m_Project.Presentations.Get(0);

            m_IsTOCFromNavDoc = false;
            if (navDocPath != null)
            {
                string fullNavPath = Path.Combine(Path.GetDirectoryName(m_Book_FilePath), navDocPath);

                XmlDocument navDoc = urakawa.xuk.XmlReaderWriterHelper.ParseXmlDocument(fullNavPath, true, true);
                ParseNCXDocument(navDoc);
                m_IsTOCFromNavDoc = true;
            }
            //spinePresentation.RootNode.GetOrCreateXmlProperty().SetQName("spine", "");

            //if (!string.IsNullOrEmpty(m_OPF_ContainerRelativePath))
            //{
            //spinePresentation.RootNode.GetOrCreateXmlProperty().SetAttribute(OPF_ContainerRelativePath, "", m_OPF_ContainerRelativePath);
            //}

            //foreach (KeyValuePair<string, string> spineAttribute in spineAttributes)
            //{
            //spinePresentation.RootNode.GetOrCreateXmlProperty().SetAttribute(spineAttribute.Key, "", spineAttribute.Value);
            //}

            //if (m_PackagePrefixAttr != null)
            //{
            //spinePresentation.RootNode.GetOrCreateXmlProperty().SetAttribute("prefix", "", m_PackagePrefixAttr.Value);
            //}

            // Audio files may be shared between chapters of a book!

            m_OriginalAudioFile_FileDataProviderMap.Clear();
            TreenodesWithoutManagedAudioMediaData = new List <TreeNode>();
            Presentation spineItemPresentation = null;

            int index = -1;

            foreach (string docPath in spineOfContentDocuments)
            {
                index++;

                reportProgress(-1, String.Format(UrakawaSDK_daisy_Lang.ReadXMLDoc, docPath));
                //System.Windows.Forms.MessageBox.Show(docPath);
                //DirectoryInfo opfParentDir = Directory.GetParent(m_Book_FilePath);
                //string dirPath = opfParentDir.ToString();
                string fullDocPath = Path.Combine(Path.GetDirectoryName(m_Book_FilePath), docPath);

                fullDocPath = FileDataProvider.NormaliseFullFilePath(fullDocPath).Replace('/', '\\');

                if (!File.Exists(fullDocPath))
                {
#if DEBUG
                    Debugger.Break();
#endif //DEBUG
                    continue;
                }

                addOPF_GlobalAssetPath(fullDocPath);

                ///TreeNode spineChild = spinePresentation.TreeNodeFactory.Create();
                //TextMedia txt = spinePresentation.MediaFactory.CreateTextMedia();
                //txt.Text = docPath; // Path.GetFileName(fullDocPath);
                //spineChild.GetOrCreateChannelsProperty().SetMedia(spinePresentation.ChannelsManager.GetOrCreateTextChannel(), txt);
                //spinePresentation.RootNode.AppendChild(spineChild);

                //spineChild.GetOrCreateXmlProperty().SetQName("metadata", "");

                //foreach (KeyValuePair<string, string> spineItemAttribute in spineItemsAttributes[index])
                //{
                //spineChild.GetOrCreateXmlProperty().SetAttribute(spineItemAttribute.Key, "", spineItemAttribute.Value);
                //}

                string ext = Path.GetExtension(fullDocPath);

                if (docPath == coverImagePath)
                {
                    DebugFix.Assert(ext.Equals(DataProviderFactory.IMAGE_SVG_EXTENSION, StringComparison.OrdinalIgnoreCase));

                    //spineChild.GetOrCreateXmlProperty().SetAttribute("cover-image", "", "true");
                }

                if (docPath == navDocPath)
                {
                    DebugFix.Assert(
                        ext.Equals(DataProviderFactory.XHTML_EXTENSION, StringComparison.OrdinalIgnoreCase) ||
                        ext.Equals(DataProviderFactory.HTML_EXTENSION, StringComparison.OrdinalIgnoreCase));

                    //spineChild.GetOrCreateXmlProperty().SetAttribute("nav", "", "true");
                }

                if (
                    !ext.Equals(DataProviderFactory.XHTML_EXTENSION, StringComparison.OrdinalIgnoreCase) &&
                    !ext.Equals(DataProviderFactory.HTML_EXTENSION, StringComparison.OrdinalIgnoreCase) &&
                    !ext.Equals(DataProviderFactory.DTBOOK_EXTENSION, StringComparison.OrdinalIgnoreCase) &&
                    !ext.Equals(DataProviderFactory.XML_EXTENSION, StringComparison.OrdinalIgnoreCase)
                    )
                {
                    DebugFix.Assert(ext.Equals(DataProviderFactory.IMAGE_SVG_EXTENSION, StringComparison.OrdinalIgnoreCase));

                    bool notExistYet = true;
                    foreach (ExternalFileData externalFileData in m_Project.Presentations.Get(0).ExternalFilesDataManager.ManagedObjects.ContentsAs_Enumerable)
                    {
                        if (!string.IsNullOrEmpty(externalFileData.OriginalRelativePath))
                        {
                            bool notExist = docPath != externalFileData.OriginalRelativePath;
                            notExistYet = notExistYet && notExist;
                            if (!notExist)
                            {
                                break;
                            }
                        }
                    }

                    DebugFix.Assert(notExistYet);

                    if (notExistYet)
                    {
                        ExternalFileData externalData = null;
                        if (docPath == coverImagePath)
                        {
                            externalData = m_Project.Presentations.Get(0).ExternalFilesDataFactory.Create
                                           <CoverImageExternalFileData>();
                        }
                        else
                        {
                            externalData = m_Project.Presentations.Get(0).ExternalFilesDataFactory.Create
                                           <GenericExternalFileData>();
                        }
                        if (externalData != null)
                        {
                            externalData.InitializeWithData(fullDocPath, docPath, true, null);

                            addOPF_GlobalAssetPath(fullDocPath);
                        }
                    }

                    continue;
                }

                //spineChild.GetOrCreateXmlProperty().SetAttribute("xuk", "", "true");

                XmlDocument xmlDoc = urakawa.xuk.XmlReaderWriterHelper.ParseXmlDocument(fullDocPath, true, true);

                if (RequestCancellation)
                {
                    return;
                }

                ///m_PublicationUniqueIdentifier = null;
                //m_PublicationUniqueIdentifierNode = null;

                //Project spineItemProject = new Project();
                //spineItemProject.PrettyFormat = m_XukPrettyFormat;

                //string dataFolderPrefix = FileDataProvider.EliminateForbiddenFileNameCharacters(docPath);
                //spineItemPresentation = spineItemProject.AddNewPresentation(new Uri(m_outDirectory),

                //dataFolderPrefix
                //);

                //PCMFormatInfo pcmFormat = spineItemPresentation.MediaDataManager.DefaultPCMFormat; //.Copy();
                //pcmFormat.Data.SampleRate = (ushort)m_audioProjectSampleRate;
                //pcmFormat.Data.NumberOfChannels = m_audioStereo ? (ushort)2 : (ushort)1;
                //spineItemPresentation.MediaDataManager.DefaultPCMFormat = pcmFormat;

                //TextChannel textChannel = spineItemPresentation.ChannelFactory.CreateTextChannel();
                //textChannel.Name = "The Text Channel";
                //DebugFix.Assert(textChannel == spineItemPresentation.ChannelsManager.GetOrCreateTextChannel());

                //AudioChannel audioChannel = spineItemPresentation.ChannelFactory.CreateAudioChannel();
                //audioChannel.Name = "The Audio Channel";
                //DebugFix.Assert(audioChannel == spineItemPresentation.ChannelsManager.GetOrCreateAudioChannel());

                //ImageChannel imageChannel = spineItemPresentation.ChannelFactory.CreateImageChannel();
                //imageChannel.Name = "The Image Channel";
                //DebugFix.Assert(imageChannel == spineItemPresentation.ChannelsManager.GetOrCreateImageChannel());

                //VideoChannel videoChannel = spineItemPresentation.ChannelFactory.CreateVideoChannel();
                //videoChannel.Name = "The Video Channel";
                //DebugFix.Assert(videoChannel == spineItemPresentation.ChannelsManager.GetOrCreateVideoChannel());


                if (m_AudioConversionSession != null)
                {
                    RemoveSubCancellable(m_AudioConversionSession);
                    m_AudioConversionSession = null;
                }

                m_AudioConversionSession = new AudioFormatConvertorSession(
                    m_Presentation.DataProviderManager.DataFileDirectoryFullPath,
                    m_Presentation.MediaDataManager.DefaultPCMFormat,
                    m_autoDetectPcmFormat,
                    true);

                //AddSubCancellable(m_AudioConversionSession);



                if (RequestCancellation)
                {
                    return;
                }

                if (parseContentDocParts(fullDocPath, m_Project, xmlDoc, docPath, DocumentMarkupType.NA))
                {
                    return; // user cancel
                }



                /*
                 * string title = GetTitle(spineItemPresentation);
                 * if (!string.IsNullOrEmpty(title))
                 * {
                 *  spineChild.GetOrCreateXmlProperty().SetAttribute("title", "", title);
                 * }
                 *
                 *
                 * if (false) // do not copy metadata from project to individual chapter
                 * {
                 *  foreach (Metadata metadata in m_Project.Presentations.Get(0).Metadatas.ContentsAs_Enumerable)
                 *  {
                 *      Metadata md = spineItemPresentation.MetadataFactory.CreateMetadata();
                 *      md.NameContentAttribute = metadata.NameContentAttribute.Copy();
                 *
                 *      foreach (MetadataAttribute metadataAttribute in metadata.OtherAttributes.ContentsAs_Enumerable)
                 *      {
                 *          MetadataAttribute mdAttr = metadataAttribute.Copy();
                 *          md.OtherAttributes.Insert(md.OtherAttributes.Count, mdAttr);
                 *      }
                 *
                 *      spineItemPresentation.Metadatas.Insert(spineItemPresentation.Metadatas.Count, md);
                 *  }
                 * }
                 */

                foreach (KeyValuePair <string, string> spineItemAttribute in spineItemsAttributes[index])
                {
                    if (spineItemAttribute.Key == "media-overlay")
                    {
                        string opfDirPath  = Path.GetDirectoryName(m_Book_FilePath);
                        string overlayPath = spineItemAttribute.Value;


                        reportProgress(-1, String.Format(UrakawaSDK_daisy_Lang.ParsingMediaOverlay, overlayPath));


                        string fullOverlayPath = Path.Combine(opfDirPath, overlayPath);
                        if (!File.Exists(fullOverlayPath))
                        {
                            continue;
                        }

                        XmlDocument overlayXmlDoc = XmlReaderWriterHelper.ParseXmlDocument(fullOverlayPath, false, false);

                        SectionNode           section      = m_Presentation.FirstSection;
                        IEnumerable <XmlNode> textElements = XmlDocumentHelper.GetChildrenElementsOrSelfWithName(overlayXmlDoc, true, "text", null, false);
                        if (textElements == null)
                        {
                            continue;
                        }
                        // audio list replaced by text list
                        //IEnumerable<XmlNode> audioElements = XmlDocumentHelper.GetChildrenElementsOrSelfWithName(overlayXmlDoc, true, "audio", null, false);
                        //if (audioElements == null)
                        //{
                        //continue;
                        //}

                        //foreach (XmlNode audioNode in audioElements)
                        foreach (XmlNode textNode in textElements)
                        {
                            XmlAttributeCollection attrs = textNode.Attributes;
                            if (attrs == null)
                            {
                                continue;
                            }
                            //XmlAttributeCollection attrs = audioNode.Attributes;
                            //if (attrs == null)
                            //{
                            //continue;
                            //}
                            XmlNode attrSrc = attrs.GetNamedItem("src");
                            if (attrSrc == null)
                            {
                                continue;
                            }

                            //XmlNode attrBegin = attrs.GetNamedItem("clipBegin");
                            //XmlNode attrEnd = attrs.GetNamedItem("clipEnd");

                            //string overlayDirPath = Path.GetDirectoryName(fullOverlayPath);
                            //string fullAudioPath = Path.Combine(overlayDirPath, attrSrc.Value);

                            //if (!File.Exists(fullAudioPath))
                            //{
                            //    continue;
                            //}


                            //if (RequestCancellation) return;
                            //reportProgress(-1, String.Format(UrakawaSDK_daisy_Lang.DecodingAudio, Path.GetFileName(fullAudioPath)));


                            TreeNode   textTreeNode = null;
                            XmlNode    audioNode    = null;
                            PageNumber pgNumber     = null;
                            //XmlNodeList children = audioNode.ParentNode.ChildNodes;
                            XmlNodeList children = textNode.ParentNode.ChildNodes;
                            foreach (XmlNode child in children)
                            {
                                //if (child == audioNode)
                                //{
                                //continue;
                                //}
                                //if (child.LocalName != "text")
                                //{
                                //continue;
                                //}
                                if (child.LocalName == "audio")
                                {
                                    audioNode = child;
                                }

                                //XmlAttributeCollection textAttrs = child.Attributes;
                                XmlAttributeCollection textAttrs = textNode.Attributes;
                                if (textAttrs == null)
                                {
                                    continue;
                                }

                                XmlNode textSrc = textAttrs.GetNamedItem("src");
                                if (textSrc == null)
                                {
                                    continue;
                                }

                                string urlDecoded = FileDataProvider.UriDecode(textSrc.Value);
                                string contentFilesDirectoryPath = Path.GetDirectoryName(fullOverlayPath);
                                if (urlDecoded.StartsWith("./"))
                                {
                                    urlDecoded = urlDecoded.Remove(0, 2);
                                }
                                if (urlDecoded.StartsWith("../"))
                                {
                                    urlDecoded = urlDecoded.Remove(0, 3);
                                    contentFilesDirectoryPath = Path.GetDirectoryName(contentFilesDirectoryPath);
                                }
                                if (urlDecoded.IndexOf('#') > 0)
                                {
                                    string[] srcParts = urlDecoded.Split('#');
                                    if (srcParts.Length != 2)
                                    {
                                        continue;
                                    }

                                    string fullTextRefPath = Path.Combine(contentFilesDirectoryPath,
                                                                          srcParts[0]);
                                    fullTextRefPath =
                                        FileDataProvider.NormaliseFullFilePath(fullTextRefPath).Replace('/', '\\');

                                    if (!fullTextRefPath.Equals(fullDocPath, StringComparison.OrdinalIgnoreCase))
                                    {
                                        //#if DEBUG
                                        //                                Debugger.Break();
                                        //#endif //DEBUG

                                        continue;
                                    }

                                    string txtId = srcParts[1];

                                    //textTreeNode = spineItemPresentation.RootNode.GetFirstDescendantWithXmlID(txtId);
                                    // replacing it
                                    //System.Windows.Forms.MessageBox.Show("retrieving: " + urlDecoded);
                                    if (m_XmlIdToSectionNodeMap.ContainsKey(urlDecoded))
                                    {
                                        textTreeNode = m_XmlIdToSectionNodeMap[urlDecoded];
                                    }
                                    else if (m_XmlIdToSectionNodeMap.ContainsKey(srcParts[0]))
                                    {
                                        textTreeNode = m_XmlIdToSectionNodeMap[srcParts[0]];
                                    }
                                    if (textTreeNode != null)
                                    {
                                        section = (SectionNode)textTreeNode;
                                        //System.Windows.Forms.MessageBox.Show(((SectionNode)textTreeNode).Label);
                                    }
                                }
                                else
                                {
                                    string fullTextRefPath = Path.Combine(Path.GetDirectoryName(fullOverlayPath),
                                                                          urlDecoded);
                                    fullTextRefPath =
                                        FileDataProvider.NormaliseFullFilePath(fullTextRefPath).Replace('/', '\\');

                                    if (!fullTextRefPath.Equals(fullDocPath, StringComparison.OrdinalIgnoreCase))
                                    {
                                        //#if DEBUG
                                        //                                Debugger.Break();
                                        //#endif //DEBUG

                                        continue;
                                    }

                                    textTreeNode = spineItemPresentation.RootNode;
                                }
                                if (m_XmlIdToPageNodeMap.ContainsKey(urlDecoded) &&
                                    m_XmlIdToPageNodeMap[urlDecoded] != null)
                                {
                                    EmptyNode pgNode = m_XmlIdToPageNodeMap[urlDecoded];
                                    pgNumber = pgNode.PageNumber;

                                    // if the section does not match then the parent of the page node should become the section.
                                    if (pgNode.IsRooted &&
                                        textTreeNode == null &&
                                        pgNode.Parent != section)
                                    {
                                        section = pgNode.ParentAs <SectionNode>();
                                        //Console.WriteLine("text node is null");
                                    }
                                    if (pgNode.IsRooted)
                                    {
                                        pgNode.Detach();
                                    }
                                    // the phrases following the page phrase in smil will refer to same content doc ID. so to avoid reassigning page, the page node in dictionary is assigned to null.
                                    m_XmlIdToPageNodeMap[urlDecoded] = null;
                                }
                            }

                            if (section != null && audioNode != null)
                            {
                                PhraseNode audioWrapperNode = m_Presentation.CreatePhraseNode();

                                section.AppendChild(audioWrapperNode);
                                addAudio(audioWrapperNode, audioNode, false, fullOverlayPath);
                                if (audioWrapperNode.Duration == 0 && !TreenodesWithoutManagedAudioMediaData.Contains(audioWrapperNode))
                                {
                                    TreenodesWithoutManagedAudioMediaData.Add(audioWrapperNode);
                                }
                                if (pgNumber != null)
                                {
                                    audioWrapperNode.PageNumber = pgNumber;
                                    pgNumber = null;
                                }
                            }

                            audioNode = null;
                        }
                    }
                }


                //spinePresentation.MediaDataManager.DefaultPCMFormat = spineItemPresentation.MediaDataManager.DefaultPCMFormat; //copied!

                //string xuk_FilePath = GetXukFilePath_SpineItem(m_outDirectory, docPath, title, index);

                //string xukFileName = Path.GetFileName(xuk_FilePath);
                //spineChild.GetOrCreateXmlProperty().SetAttribute("xukFileName", "", xukFileName);

                //deleteDataDirectoryIfEmpty();
                //string dataFolderPath = spineItemPresentation.DataProviderManager.DataFileDirectoryFullPath;
                //spineItemPresentation.DataProviderManager.SetCustomDataFileDirectory(Path.GetFileNameWithoutExtension(xuk_FilePath));

                //string newDataFolderPath = spineItemPresentation.DataProviderManager.DataFileDirectoryFullPath;
                //DebugFix.Assert(Directory.Exists(newDataFolderPath));

                //if (newDataFolderPath != dataFolderPath)
                {
                    /*
                     * try
                     * {
                     *  if (Directory.Exists(newDataFolderPath))
                     *  {
                     *      FileDataProvider.TryDeleteDirectory(newDataFolderPath, false);
                     *  }
                     *
                     *  Directory.Move(dataFolderPath, newDataFolderPath);
                     * }
                     * catch (Exception ex)
                     * {
                     #if DEBUG
                     *  Debugger.Break();
                     #endif // DEBUG
                     *  Console.WriteLine(ex.Message);
                     *  Console.WriteLine(ex.StackTrace);
                     *
                     *  spineItemPresentation.DataProviderManager.SetCustomDataFileDirectory(dataFolderPrefix);
                     * }
                     */
                }
            }
        }