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/*
* 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.math.BigInteger;
import java.util.Date;
import org.apache.poi.xwpf.usermodel.UnderlinePatterns;
import org.apache.tika.parser.microsoft.OfficeParserConfig;
import org.apache.tika.parser.microsoft.WordExtractor;
import org.apache.tika.parser.microsoft.ooxml.xwpf.XWPFStylesShim;
import org.apache.tika.sax.XHTMLContentHandler;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.AttributesImpl;
public class OOXMLTikaBodyPartHandler implements OOXMLWordAndPowerPointTextHandler.XWPFBodyContentsHandler {
private final static String P = "p";
private final static char[] NEWLINE = new char[]{'\n'};
private final XHTMLContentHandler xhtml;
private final XWPFListManager listManager;
private final boolean includeDeletedText;
private final boolean includeMoveFromText;
private final XWPFStylesShim styles;
private int pDepth = 0; //paragraph depth
private int tableDepth = 0;//table depth
private int sdtDepth = 0;//
private boolean isItalics = false;
private boolean isBold = false;
private boolean isUnderline = false;
private boolean isStrikeThrough = false;
private boolean wroteHyperlinkStart = false;
//TODO: fix this
//pWithinCell should be an array/stack of given cell depths
//so that when you get to the end of an embedded table, e.g.,
//you know what your paragraph count was in the parent cell.
//
...
private int tableCellDepth = 0;
private int pWithinCell = 0;
//will need to replace this with a stack
//if we're marking more that the first level element
private String paragraphTag = null;
public OOXMLTikaBodyPartHandler(XHTMLContentHandler xhtml) {
this.xhtml = xhtml;
this.styles = XWPFStylesShim.EMPTY_STYLES;
this.listManager = XWPFListManager.EMPTY_LIST;
this.includeDeletedText = false;
this.includeMoveFromText = false;
}
public OOXMLTikaBodyPartHandler(XHTMLContentHandler xhtml, XWPFStylesShim styles, XWPFListManager listManager, OfficeParserConfig parserConfig) {
this.xhtml = xhtml;
this.styles = styles;
this.listManager = listManager;
this.includeDeletedText = parserConfig.getIncludeDeletedContent();
this.includeMoveFromText = parserConfig.getIncludeMoveFromContent();
}
@Override
public void run(RunProperties runProperties, String contents) {
try {
// True if we are currently in the named style tag:
if (runProperties.isBold() != isBold) {
if (isStrikeThrough) {
xhtml.endElement("strike");
isStrikeThrough = false;
}
if (isUnderline) {
xhtml.endElement("u");
isUnderline = false;;
}
if (isItalics) {
xhtml.endElement("i");
isItalics = false;
}
if (runProperties.isBold()) {
xhtml.startElement("b");
} else {
xhtml.endElement("b");
}
isBold = runProperties.isBold();
}
if (runProperties.isItalics() != isItalics) {
if (isStrikeThrough) {
xhtml.endElement("strike");
isStrikeThrough = false;
}
if (isUnderline) {
xhtml.endElement("u");
isUnderline = false;
}
if (runProperties.isItalics()) {
xhtml.startElement("i");
} else {
xhtml.endElement("i");
}
isItalics = runProperties.isItalics();
}
if (runProperties.isStrikeThrough() != isStrikeThrough) {
if (isUnderline) {
xhtml.endElement("u");
isUnderline = false;
}
if (runProperties.isStrikeThrough()) {
xhtml.startElement("strike");
} else {
xhtml.endElement("strike");
}
isStrikeThrough = runProperties.isStrikeThrough();
}
boolean runIsUnderlined = runProperties.getUnderline() != UnderlinePatterns.NONE;
if (runIsUnderlined != isUnderline) {
if (runIsUnderlined) {
xhtml.startElement("u");
} else {
xhtml.endElement("u");
}
isUnderline = runIsUnderlined;
}
xhtml.characters(contents);
} catch (SAXException e) {
}
}
@Override
public void hyperlinkStart(String link) {
try {
if (link != null) {
xhtml.startElement("a", "href", link);
wroteHyperlinkStart = true;
}
} catch (SAXException e) {
}
}
@Override
public void hyperlinkEnd() {
try {
if (wroteHyperlinkStart) {
closeStyleTags();
wroteHyperlinkStart = false;
xhtml.endElement("a");
}
} catch (SAXException e) {
}
}
@Override
public void startParagraph(ParagraphProperties paragraphProperties) {
//if you're in a table cell and your after the first paragraph
//make sure to prepend a \n
if (tableCellDepth > 0 && pWithinCell > 0) {
try {
xhtml.characters(NEWLINE, 0, 1);
} catch (SAXException e) {
//swallow
}
}
if (pDepth == 0 && tableDepth == 0 && sdtDepth == 0) {
paragraphTag = P;
String styleClass = null;
//TIKA-2144 check that styles is not null
if (paragraphProperties.getStyleID() != null && styles != null) {
String styleName = styles.getStyleName(
paragraphProperties.getStyleID()
);
if (styleName != null) {
WordExtractor.TagAndStyle tas = WordExtractor.buildParagraphTagAndStyle(
styleName, false);
paragraphTag = tas.getTag();
styleClass = tas.getStyleClass();
}
}
try {
if (styleClass == null) {
xhtml.startElement(paragraphTag);
} else {
xhtml.startElement(paragraphTag, "class", styleClass);
}
} catch (SAXException e) {
}
}
try {
writeParagraphNumber(paragraphProperties.getNumId(),
paragraphProperties.getIlvl(), listManager, xhtml);
} catch (SAXException e) {
}
pDepth++;
}
@Override
public void endParagraph() {
try {
closeStyleTags();
if (pDepth == 1 && tableDepth == 0) {
xhtml.endElement(paragraphTag);
} else if (tableCellDepth > 0 && pWithinCell > 0){
xhtml.characters(NEWLINE, 0, 1);
} else if (tableCellDepth == 0) {
xhtml.characters(NEWLINE, 0, 1);
}
} catch (SAXException e) {
}
if (tableCellDepth > 0) {
pWithinCell++;
}
pDepth--;
}
@Override
public void startTable() {
try {
xhtml.startElement("table");
tableDepth++;
} catch (SAXException e) {
}
}
@Override
public void endTable() {
try {
xhtml.endElement("table");
tableDepth--;
} catch (SAXException e) {
}
}
@Override
public void startTableRow() {
try {
xhtml.startElement("tr");
} catch (SAXException e) {
}
}
@Override
public void endTableRow() {
try {
xhtml.endElement("tr");
} catch (SAXException e) {
}
}
@Override
public void startTableCell() {
try {
xhtml.startElement("td");
} catch (SAXException e) {
}
tableCellDepth++;
}
@Override
public void endTableCell() {
try {
xhtml.endElement("td");
} catch (SAXException e) {
}
pWithinCell = 0;
tableCellDepth--;
}
@Override
public void startSDT() {
try {
closeStyleTags();
sdtDepth++;
} catch (SAXException e) {
}
}
@Override
public void endSDT() {
sdtDepth--;
}
@Override
public void startEditedSection(String editor, Date date, OOXMLWordAndPowerPointTextHandler.EditType editType) {
//no-op
}
@Override
public void endEditedSection() {
//no-op
}
@Override
public boolean getIncludeDeletedText() {
return includeDeletedText;
}
@Override
public void footnoteReference(String id) {
if (id != null) {
try {
xhtml.characters("[");
xhtml.characters(id);
xhtml.characters("]");
} catch (SAXException e) {
}
}
}
@Override
public void endnoteReference(String id) {
if (id != null) {
try {
xhtml.characters("[");
xhtml.characters(id);
xhtml.characters("]");
} catch (SAXException e) {
}
}
}
@Override
public boolean getIncludeMoveFromText() {
return includeMoveFromText;
}
@Override
public void embeddedOLERef(String relId) {
if (relId == null) {
return;
}
try {
AttributesImpl attributes = new AttributesImpl();
attributes.addAttribute("", "class", "class", "CDATA", "embedded");
attributes.addAttribute("", "id", "id", "CDATA", relId);
xhtml.startElement("div", attributes);
xhtml.endElement("div");
} catch (SAXException e) {
}
}
@Override
public void embeddedPicRef(String picFileName, String picDescription) {
try {
AttributesImpl attr = new AttributesImpl();
if (picFileName != null) {
attr.addAttribute("", "src", "src", "CDATA", "embedded:" + picFileName);
}
if (picDescription != null) {
attr.addAttribute("", "alt", "alt", "CDATA", picDescription);
}
xhtml.startElement("img", attr);
xhtml.endElement("img");
} catch (SAXException e) {
}
}
@Override
public void startBookmark(String id, String name) {
//skip bookmarks within hyperlinks
if (name != null && ! wroteHyperlinkStart) {
try {
xhtml.startElement("a", "name", name);
xhtml.endElement("a");
} catch (SAXException e) {
}
}
}
@Override
public void endBookmark(String id) {
//no-op
}
private void closeStyleTags() throws SAXException {
if (isStrikeThrough) {
xhtml.endElement("strike");
isStrikeThrough = false;
}
if (isUnderline) {
xhtml.endElement("u");
isUnderline = false;
}
if (isItalics) {
xhtml.endElement("i");
isItalics = false;
}
if (isBold) {
xhtml.endElement("b");
isBold = false;
}
}
private void writeParagraphNumber(int numId, int ilvl,
XWPFListManager listManager,
XHTMLContentHandler xhtml) throws SAXException {
if (ilvl < 0 || numId < 0 || listManager == null) {
return;
}
String number = listManager.getFormattedNumber(BigInteger.valueOf(numId), ilvl);
if (number != null) {
xhtml.characters(number);
}
}
}
