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@ -72,6 +72,60 @@ public class PackageDocumentReader extends PackageDocumentBase { |
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} |
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} |
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} |
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} |
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/** |
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* |
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* 修复一些非标准epub格式由于 opf 文件内容不全而读取不到图片的问题 |
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* @author qianfanguojin |
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* @return ,修复图片路径后的一个Element列表 |
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*/ |
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private static ArrayList<Element> ensureImageInfo(Resources resources, |
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Element manifestElement){ |
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ArrayList<Element> fixedElements = new ArrayList<>(); |
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//加入当前所有的 item 标签
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NodeList originItemElements = manifestElement |
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.getElementsByTagNameNS(NAMESPACE_OPF, OPFTags.item); |
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for (int i = 0; i < originItemElements.getLength(); i++) { |
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fixedElements.add((Element) originItemElements.item(i)); |
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} |
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//如果有图片资源未定义在 originItemElements ,则加入该图片信息得到 fixedElements 中
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for (Resource resource : resources.getAll()) { |
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MediaType currentMediaType = resource.getMediaType(); |
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if ( currentMediaType == MediaTypes.JPG || currentMediaType == MediaTypes.PNG){ |
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String imageHref = resource.getHref(); |
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//确保该图片信息 resource 在原 originItemElements 列表中没有出现过
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boolean flag = false; |
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int i; |
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for (i = 0; i < originItemElements.getLength(); i++){ |
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Element itemElement = (Element) originItemElements.item(i); |
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String href = DOMUtil |
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.getAttribute(itemElement, NAMESPACE_OPF, OPFAttributes.href); |
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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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} |
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if (href.equals(imageHref)){ |
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break; |
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} |
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} |
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if (i == originItemElements.getLength()){ |
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flag = true; |
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} |
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if (flag){ |
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//由于暂时无法实例化一个Element,则选择克隆一个已存在的节点来修改以达到新增 Element 的效果,作为临时解决方案
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Element tempElement = (Element) manifestElement.getElementsByTagNameNS(NAMESPACE_OPF,OPFTags.item).item(0).cloneNode(true); |
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tempElement.setAttribute("id",imageHref.replace("/","")); |
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tempElement.setAttribute("href",imageHref); |
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tempElement.setAttribute("media-type", currentMediaType.getName()); |
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fixedElements.add(tempElement); |
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} |
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} |
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} |
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return fixedElements; |
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} |
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/** |
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/** |
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* Reads the manifest containing the resource ids, hrefs and mediatypes. |
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* Reads the manifest containing the resource ids, hrefs and mediatypes. |
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* |
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* |
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@ -96,10 +150,9 @@ public class PackageDocumentReader extends PackageDocumentBase { |
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"Package document does not contain element " + OPFTags.manifest); |
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"Package document does not contain element " + OPFTags.manifest); |
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return result; |
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return result; |
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} |
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} |
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NodeList itemElements = manifestElement |
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List<Element> ensuredElements = ensureImageInfo(resources,manifestElement); |
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.getElementsByTagNameNS(NAMESPACE_OPF, OPFTags.item); |
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for (Element itemElement : ensuredElements) { |
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for (int i = 0; i < itemElements.getLength(); i++) { |
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// Element itemElement = ;
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Element itemElement = (Element) itemElements.item(i); |
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String id = DOMUtil |
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String id = DOMUtil |
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.getAttribute(itemElement, NAMESPACE_OPF, OPFAttributes.id); |
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.getAttribute(itemElement, NAMESPACE_OPF, OPFAttributes.id); |
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String href = DOMUtil |
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String href = DOMUtil |
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