/// <summary> /// Creates a spine out of all resources in the resources. The generated spine /// consists of all XHTML pages in order of their href. /// </summary> /// <param name="resources"></param> private static Spine generateSpineFromResources(Resources resources) { Spine result = new Spine(); List<String> resourceHrefs = new List<String>(resources.getAllHrefs()); foreach (String resourceHref in resourceHrefs) { Resource resource = resources.getByHref(resourceHref); if (resource.getMediaType() == MediatypeService.NCX) { result.setTocResource(resource); } else if (resource.getMediaType() == MediatypeService.XHTML) { result.addSpineReference(new SpineReference(resource)); } } return result; }
/// <summary> /// Reads the document's spine, containing all sections in reading order. /// </summary> /// <param>book</param> /// <param>resourcesById</param> /// <param name="packageDocument"></param> /// <param name="epubReader"></param> /// <param name="resources"></param> /// <param name="idMapping"></param> private static Spine readSpine(XElement packageDocument, EpubReader epubReader, Resources resources, Dictionary<String, String> idMapping) { XElement spineElement = DOMUtil.getFirstElementByTagNameNS(packageDocument, NAMESPACE_OPF, OPFTags.spine); if (spineElement == null) { //log.error("Element " + OPFTags.spine + " not found in package document, generating one automatically"); return generateSpineFromResources(resources); } Spine result = new Spine(); result.setTocResource(findTableOfContentsResource(spineElement, resources)); var spineNodes = packageDocument.Elements(NAMESPACE_OPF + OPFTags.itemref).Elements<XElement>(); IEnumerator spineNode = spineNodes.GetEnumerator(); List<SpineReference> spineReferences = new List<SpineReference>(); while (spineNode.MoveNext()) { XElement spineItem = (XElement)spineNode.Current; String itemref = DOMUtil.getAttribute(spineItem, OPFAttributes.idref); if (StringUtil.isBlank(itemref)) { //log.error("itemref with missing or empty idref"); // XXX continue; } String id = idMapping[itemref]; if (id == null) { id = itemref; } Resource resource = resources.getByIdOrHref(id); if (resource == null) { //log.error("resource with id \'" + id + "\' not found"); continue; } SpineReference spineReference = new SpineReference(resource); if (OPFValues.no.Equals(DOMUtil.getAttribute(spineItem, OPFAttributes.linear))) { spineReference.setLinear(false); } spineReferences.Add(spineReference); } result.setSpineReferences(spineReferences); return result; }