/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.tika.parser.microsoft.ooxml;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.openxml4j.opc.PackagePart;
import org.apache.poi.openxml4j.opc.PackagePartName;
import org.apache.poi.openxml4j.opc.PackageRelationship;
import org.apache.poi.openxml4j.opc.PackagingURIHelper;
import org.apache.poi.openxml4j.opc.TargetMode;
import org.apache.poi.xslf.XSLFSlideShow;
import org.apache.poi.xslf.extractor.XSLFPowerPointExtractor;
import org.apache.poi.xslf.usermodel.XMLSlideShow;
import org.apache.poi.xslf.usermodel.XSLFSlide;
import org.apache.poi.xslf.usermodel.XSLFCommonSlideData;
import org.apache.poi.xslf.usermodel.DrawingParagraph;
import org.apache.tika.exception.TikaException;
import org.apache.tika.parser.ParseContext;
import org.apache.tika.sax.XHTMLContentHandler;
import org.apache.xmlbeans.XmlException;
import org.openxmlformats.schemas.presentationml.x2006.main.CTComment;
import org.openxmlformats.schemas.presentationml.x2006.main.CTCommentList;
import org.openxmlformats.schemas.presentationml.x2006.main.CTNotesSlide;
import org.openxmlformats.schemas.presentationml.x2006.main.CTSlide;
import org.openxmlformats.schemas.presentationml.x2006.main.CTSlideIdListEntry;
import org.xml.sax.SAXException;
public class XSLFPowerPointExtractorDecorator extends AbstractOOXMLExtractor {
public XSLFPowerPointExtractorDecorator(ParseContext context, XSLFPowerPointExtractor extractor) {
super(context, extractor, "application/vnd.openxmlformats-officedocument.presentationml.presentation");
}
/**
* @see org.apache.poi.xslf.extractor.XSLFPowerPointExtractor#getText()
*/
@Override
protected void buildXHTML(XHTMLContentHandler xhtml) throws SAXException,
XmlException, IOException {
XSLFSlideShow slideShow = (XSLFSlideShow) extractor.getDocument();
XMLSlideShow xmlSlideShow = new XMLSlideShow(slideShow);
XSLFSlide[] slides = xmlSlideShow.getSlides();
for (XSLFSlide slide : slides) {
CTSlide rawSlide = slide._getCTSlide();
CTSlideIdListEntry slideId = slide._getCTSlideId();
CTNotesSlide notes = xmlSlideShow._getXSLFSlideShow().getNotes(
slideId);
CTCommentList comments = xmlSlideShow._getXSLFSlideShow()
.getSlideComments(slideId);
xhtml.startElement("div");
extractShapeContent(slide.getCommonSlideData(), xhtml);
if (comments != null) {
for (CTComment comment : comments.getCmArray()) {
xhtml.element("p", comment.getText());
}
}
if (notes != null) {
extractShapeContent(new XSLFCommonSlideData(notes.getCSld()), xhtml);
}
xhtml.endElement("div");
}
}
private void extractShapeContent(XSLFCommonSlideData data, XHTMLContentHandler xhtml)
throws SAXException {
for (DrawingParagraph p : data.getText()) {
xhtml.element("p", p.getText().toString());
}
}
/**
* In PowerPoint files, slides have things embedded in them,
* and slide drawings which have the images
*/
@Override
protected List<PackagePart> getMainDocumentParts() throws TikaException {
List<PackagePart> parts = new ArrayList<PackagePart>();
XSLFSlideShow document = (XSLFSlideShow) extractor.getDocument();
for (CTSlideIdListEntry ctSlide : document.getSlideReferences().getSldIdList()) {
// Add the slide
PackagePart slidePart;
try {
slidePart = document.getSlidePart(ctSlide);
} catch(IOException e) {
throw new TikaException("Broken OOXML file", e);
} catch(XmlException xe) {
throw new TikaException("Broken OOXML file", xe);
}
parts.add(slidePart);
// If it has drawings, return those too
try {
// TODO Improve when we upgrade POI
// for(PackageRelationship rel : slidePart.getRelationshipsByType(XSLFRelation.VML_DRAWING.getRelation())) {
for(PackageRelationship rel : slidePart.getRelationshipsByType("http://schemas.openxmlformats.org/officeDocument/2006/relationships/vmlDrawing")) {
if(rel.getTargetMode() == TargetMode.INTERNAL) {
PackagePartName relName = PackagingURIHelper.createPartName(rel.getTargetURI());
parts.add( rel.getPackage().getPart(relName) );
}
}
} catch(InvalidFormatException e) {
throw new TikaException("Broken OOXML file", e);
}
}
return parts;
}
}