/*
* Copyright (c) 2007 Adobe Systems Incorporated
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
package com.adobe.epubcheck.ncx;
import com.adobe.epubcheck.opf.XRefChecker;
import com.adobe.epubcheck.util.FeatureEnum;
import com.adobe.epubcheck.util.HandlerUtil;
import com.adobe.epubcheck.util.PathUtil;
import com.adobe.epubcheck.xml.XMLElement;
import com.adobe.epubcheck.xml.XMLHandler;
import com.adobe.epubcheck.xml.XMLParser;
public class NCXHandler implements XMLHandler
{
private final XMLParser parser;
private final String path;
private final XRefChecker xrefChecker;
String uid;
boolean checkedUnsupportedXmlVersion = false;
NCXHandler(XMLParser parser, String path, XRefChecker xrefChecker)
{
this.parser = parser;
this.path = path;
this.xrefChecker = xrefChecker;
}
public void characters(char[] chars, int arg1, int arg2)
{
}
public void ignorableWhitespace(char[] chars, int arg1, int arg2)
{
}
public void startElement()
{
if (!checkedUnsupportedXmlVersion)
{
HandlerUtil.checkXMLVersion(parser);
checkedUnsupportedXmlVersion = true;
}
XMLElement e = parser.getCurrentElement();
String ns = e.getNamespace();
String name = e.getName();
if (ns.equals("http://www.daisy.org/z3986/2005/ncx/") && name.equals("content"))
{
String href = e.getAttribute("src");
if (href != null)
{
href = PathUtil.resolveRelativeReference(path, href, null);
if (href.startsWith("http"))
{
parser.getReport().info(path, FeatureEnum.REFERENCE, href);
}
xrefChecker.registerReference(path, parser.getLineNumber(),
parser.getColumnNumber(), href,
XRefChecker.RT_HYPERLINK);
}
else if ("meta".equals(name))
{
String metaName = e.getAttribute("name");
if ("dtb:uid".equals(metaName))
{
String metaContent = e.getAttribute("content");
if (metaContent != null)
{
uid = metaContent;
}
}
}
}
}
public void endElement()
{
}
public void processingInstruction(String arg0, String arg1){}
/**
* @return the uid
*/
public String getUid()
{
return uid;
}
}