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package ars.file.office;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Element;
import org.w3c.dom.Document;
import org.xhtmlrenderer.render.BlockBox;
import org.xhtmlrenderer.layout.LayoutContext;
import org.xhtmlrenderer.extend.ReplacedElement;
import org.xhtmlrenderer.extend.UserAgentCallback;
import org.xhtmlrenderer.extend.ReplacedElementFactory;
import org.xhtmlrenderer.simple.extend.FormSubmissionListener;

/**
 * SVG元素工厂对象
 *
 * @author wuyongqiang
 */
public class SVGReplacedElementFactory implements ReplacedElementFactory {

    @Override
    public ReplacedElement createReplacedElement(LayoutContext c, BlockBox box, UserAgentCallback uac, int cssWidth,
                                                 int cssHeight) {
        Element element = box.getElement();
        if ("svg".equals(element.getNodeName())) {

            DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder documentBuilder;

            try {
                documentBuilder = documentBuilderFactory.newDocumentBuilder();
            } catch (ParserConfigurationException e) {
                throw new RuntimeException(e);
            }
            Document svgDocument = documentBuilder.newDocument();
            Element svgElement = (Element) svgDocument.importNode(element, true);
            svgDocument.appendChild(svgElement);
            return new SVGReplacedElement(svgDocument, cssWidth, cssHeight);
        }
        return null;
    }

    @Override
    public void reset() {

    }

    @Override
    public void remove(Element e) {

    }

    @Override
    public void setFormSubmissionListener(FormSubmissionListener listener) {

    }

}