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@ -36,13 +36,12 @@ import me.ag2s.epublib.util.StringUtil; |
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* Reads the opf package document as defined by namespace http://www.idpf.org/2007/opf
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* |
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* @author paul |
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* |
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*/ |
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public class PackageDocumentReader extends PackageDocumentBase { |
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private static final String TAG= PackageDocumentReader.class.getName(); |
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private static final String TAG = PackageDocumentReader.class.getName(); |
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private static final String[] POSSIBLE_NCX_ITEM_IDS = new String[]{"toc", |
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"ncx", "ncxtoc","htmltoc"}; |
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"ncx", "ncxtoc", "htmltoc"}; |
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public static void read( |
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@ -56,7 +55,7 @@ public class PackageDocumentReader extends PackageDocumentBase { |
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// Books sometimes use non-identifier ids. We map these here to legal ones
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Map<String, String> idMapping = new HashMap<>(); |
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String version=DOMUtil.getAttribute(packageDocument.getDocumentElement(),PREFIX_OPF,PackageDocumentBase.version); |
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String version = DOMUtil.getAttribute(packageDocument.getDocumentElement(), PREFIX_OPF, PackageDocumentBase.version); |
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resources = readManifest(packageDocument, packageHref, epubReader, |
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resources, idMapping); |
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@ -119,18 +118,18 @@ public class PackageDocumentReader extends PackageDocumentBase { |
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try { |
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href = URLDecoder.decode(href, Constants.CHARACTER_ENCODING); |
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} catch (UnsupportedEncodingException e) { |
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Log.e(TAG,e.getMessage()); |
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Log.e(TAG, e.getMessage()); |
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} |
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String mediaTypeName = DOMUtil |
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.getAttribute(itemElement, NAMESPACE_OPF, OPFAttributes.media_type); |
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Resource resource = resources.remove(href); |
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if (resource == null) { |
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Log.e(TAG,"resource with href '" + href + "' not found"); |
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Log.e(TAG, "resource with href '" + href + "' not found"); |
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continue; |
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} |
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resource.setId(id); |
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//for epub3
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String properties=DOMUtil.getAttribute(itemElement,NAMESPACE_OPF,OPFAttributes.properties); |
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String properties = DOMUtil.getAttribute(itemElement, NAMESPACE_OPF, OPFAttributes.properties); |
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resource.setProperties(properties); |
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MediaType mediaType = MediaTypes.getMediaTypeByName(mediaTypeName); |
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@ -175,14 +174,14 @@ public class PackageDocumentReader extends PackageDocumentBase { |
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Resource resource = resources.getByHref(StringUtil |
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.substringBefore(resourceHref, Constants.FRAGMENT_SEPARATOR_CHAR)); |
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if (resource == null) { |
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Log.e(TAG,"Guide is referencing resource with href " + resourceHref |
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Log.e(TAG, "Guide is referencing resource with href " + resourceHref |
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+ " which could not be found"); |
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continue; |
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} |
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String type = DOMUtil |
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.getAttribute(referenceElement, NAMESPACE_OPF, OPFAttributes.type); |
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if (StringUtil.isBlank(type)) { |
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Log.e(TAG,"Guide is referencing resource with href " + resourceHref |
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Log.e(TAG, "Guide is referencing resource with href " + resourceHref |
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+ " which is missing the 'type' attribute"); |
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continue; |
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} |
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@ -201,7 +200,7 @@ public class PackageDocumentReader extends PackageDocumentBase { |
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/** |
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* Strips off the package prefixes up to the href of the packageHref. |
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* |
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* <p> |
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* Example: |
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* If the packageHref is "OEBPS/content.opf" then a resource href like "OEBPS/foo/bar.html" will be turned into "foo/bar.html" |
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* |
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@ -241,31 +240,32 @@ public class PackageDocumentReader extends PackageDocumentBase { |
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.getFirstElementByTagNameNS(packageDocument.getDocumentElement(), |
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NAMESPACE_OPF, OPFTags.spine); |
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if (spineElement == null) { |
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Log.e(TAG,"Element " + OPFTags.spine |
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Log.e(TAG, "Element " + OPFTags.spine |
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+ " not found in package document, generating one automatically"); |
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return generateSpineFromResources(resources); |
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} |
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Spine result = new Spine(); |
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String tocResourceId = DOMUtil |
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.getAttribute(spineElement, NAMESPACE_OPF, OPFAttributes.toc); |
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result |
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.setTocResource(findTableOfContentsResource(tocResourceId, resources)); |
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NodeList spineNodes = packageDocument |
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.getElementsByTagNameNS(NAMESPACE_OPF, OPFTags.itemref); |
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List<SpineReference> spineReferences = new ArrayList<>( |
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spineNodes.getLength()); |
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String tocResourceId = DOMUtil.getAttribute(spineElement, NAMESPACE_OPF, OPFAttributes.toc); |
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Log.v(TAG,tocResourceId); |
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result.setTocResource(findTableOfContentsResource(tocResourceId, resources)); |
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NodeList spineNodes = DOMUtil.getElementsByTagNameNS(packageDocument, NAMESPACE_OPF, OPFTags.itemref); |
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if(spineNodes==null){ |
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Log.e(TAG,"spineNodes is null"); |
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return result; |
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} |
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List<SpineReference> spineReferences = new ArrayList<>(spineNodes.getLength()); |
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for (int i = 0; i < spineNodes.getLength(); i++) { |
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Element spineItem = (Element) spineNodes.item(i); |
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String itemref = DOMUtil |
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.getAttribute(spineItem, NAMESPACE_OPF, OPFAttributes.idref); |
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String itemref = DOMUtil.getAttribute(spineItem, NAMESPACE_OPF, OPFAttributes.idref); |
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if (StringUtil.isBlank(itemref)) { |
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Log.e(TAG,"itemref with missing or empty idref"); // XXX
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Log.e(TAG, "itemref with missing or empty idref"); // XXX
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continue; |
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} |
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String id = idMapping.get(itemref); |
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if (id == null) { |
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id = itemref; |
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} |
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Resource resource = resources.getByIdOrHref(id); |
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if (resource == null) { |
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Log.e(TAG, "resource with id '" + id + "' not found"); |
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@ -308,7 +308,7 @@ public class PackageDocumentReader extends PackageDocumentBase { |
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/** |
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* The spine tag should contain a 'toc' attribute with as value the resource id of the table of contents resource. |
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* |
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* <p> |
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* Here we try several ways of finding this table of contents resource. |
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* We try the given attribute value, some often-used ones and finally look through all resources for the first resource with the table of contents mimetype. |
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* |
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@ -318,7 +318,13 @@ public class PackageDocumentReader extends PackageDocumentBase { |
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*/ |
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static Resource findTableOfContentsResource(String tocResourceId, |
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Resources resources) { |
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Resource tocResource = null; |
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Resource tocResource; |
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//一些epub3的文件为了兼容epub2,保留的epub2的目录文件，这里优先选择epub3的xml目录
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tocResource = resources.getByProperties("nav"); |
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if (tocResource != null) { |
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return tocResource; |
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} |
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if (StringUtil.isNotBlank(tocResourceId)) { |
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tocResource = resources.getByIdOrHref(tocResourceId); |
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} |
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@ -343,10 +349,7 @@ public class PackageDocumentReader extends PackageDocumentBase { |
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} |
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} |
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} |
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//For EPUB3
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if (tocResource==null){ |
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tocResource=resources.getByProperties("nav"); |
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} |
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if (tocResource == null) { |
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Log.e(TAG, |
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kunfei
4 years ago
committed by
GitHub