Examples with DefaultEntityResolver io.sf.carte.doc.xml.dtd.DefaultEntityResolver used on opensource projects

Example 1 with DefaultEntityResolver

use of io.sf.carte.doc.xml.dtd.DefaultEntityResolver in project xwiki-platform by xwiki.

the class PdfExportImpl method applyCSS.

/**
 * Apply a CSS style sheet to an XHTML document and return the document with the resulting style properties inlined
 * in <tt>style</tt> attributes.
 *
 * @param html the valid XHTML document to style
 * @param css the style sheet to apply
 * @param context the current request context
 * @return the document with inlined style
 */
String applyCSS(String html, String css, XWikiContext context) {
    LOGGER.debug("Applying the following CSS [{}] to HTML [{}]", css, html);
    try {
        // System.setProperty("org.w3c.css.sac.parser", "org.apache.batik.css.parser.Parser");
        // Prepare the input
        Reader re = new StringReader(html);
        InputSource source = new InputSource(re);
        SAXReader reader = new SAXReader(XHTMLDocumentFactory.getInstance());
        reader.setEntityResolver(new DefaultEntityResolver());
        XHTMLDocument document = (XHTMLDocument) reader.read(source);
        // Set the base URL so that CSS4J can resolve URLs in CSS. Use the current document in the XWiki Context
        document.setBaseURL(new URL(context.getDoc().getExternalURL("view", context)));
        // Apply the style sheet
        document.addStyleSheet(new org.w3c.css.sac.InputSource(new StringReader(css)));
        applyInlineStyle(document.getRootElement());
        OutputFormat outputFormat = new OutputFormat("", false);
        if ((context == null) || (context.getWiki() == null)) {
            outputFormat.setEncoding("UTF-8");
        } else {
            outputFormat.setEncoding(context.getWiki().getEncoding());
        }
        StringWriter out = new StringWriter();
        XMLWriter writer = new XMLWriter(out, outputFormat);
        writer.write(document);
        String result = out.toString();
        // Debug output
        if (LOGGER.isDebugEnabled()) {
            LOGGER.debug("HTML with CSS applied [{}]", result);
        }
        return result;
    } catch (Exception e) {
        LOGGER.warn("Failed to apply CSS [{}] to HTML [{}]", css, html, e);
        return html;
    }
}