/*
* Copyright (c) 2012 Vadim Zaslawski, Ontos AG
* Copyright (c) 2012 Mozilla Foundation
*
* 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 nu.validator.servlet;
import java.io.IOException;
import java.util.Deque;
import nu.validator.servlet.OutlineBuildingXMLReaderWrapper.Section;
import nu.validator.xml.AttributesImpl;
import nu.validator.xml.XhtmlSaxEmitter;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;
public class XhtmlOutlineEmitter {
private static final char[] OUTLINE = "Outline".toCharArray();
private final Deque<Section> outline;
private final XhtmlSaxEmitter emitter;
private final AttributesImpl attrs = new AttributesImpl();
public XhtmlOutlineEmitter(final ContentHandler contentHandler,
final Deque<Section> outline) {
this.emitter = new XhtmlSaxEmitter(contentHandler);
this.outline = outline;
}
public void emit() throws SAXException {
if (outline != null) {
attrs.clear();
attrs.addAttribute("id", "outline");
emitter.startElement("section", attrs);
emitter.startElement("h2");
emitter.characters(OUTLINE);
emitter.endElement("h2");
try {
emitOutline(outline, 0);
} catch (IOException e) {
throw new RuntimeException(e);
}
emitter.endElement("section");
}
}
protected void emitOutline(Deque<Section> outline, int currentDepth)
throws IOException, SAXException {
emitter.startElement("ol");
for (Section section : outline) {
emitter.startElement("li");
StringBuilder headingText = section.getHeadingTextBuilder();
if (headingText.length() > 0) {
emitter.startElementWithClass("span", "heading");
emitter.characters(headingText.toString().toCharArray());
emitter.endElement("span");
} else if (section.hasEmptyHeading()) {
emitter.characters(("[" + section.getElementName() + " element with empty heading]").toCharArray());
} else if ("h1".equals(section.getElementName())
|| "h2".equals(section.getElementName())
|| "h3".equals(section.getElementName())
|| "h4".equals(section.getElementName())
|| "h5".equals(section.getElementName())
|| "h6".equals(section.getElementName())) {
emitter.characters(("[section implied by empty "
+ section.getElementName() + " element]").toCharArray());
} else {
emitter.characters(("[" + section.getElementName() + " element with no heading]").toCharArray());
}
Deque<Section> sections = section.sections;
if (!sections.isEmpty()) {
emitOutline(sections, currentDepth + 1);
}
emitter.endElement("li");
}
emitter.endElement("ol");
}
}