/*
 *
 * This file is part of the iText (R) project.
    Copyright (c) 1998-2017 iText Group NV
 * Authors: Balder Van Camp, Emiel Ackermann, et al.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License version 3
 * as published by the Free Software Foundation with the addition of the
 * following permission added to Section 15 as permitted in Section 7(a):
 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
 * ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
 * OF THIRD PARTY RIGHTS
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Affero General Public License for more details.
 * You should have received a copy of the GNU Affero General Public License
 * along with this program; if not, see http://www.gnu.org/licenses or write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
 * http://itextpdf.com/terms-of-use/
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License,
 * a covered work must retain the producer line in every PDF that is created
 * or manipulated using iText.
 *
 * You can be released from the requirements of the license by purchasing
 * a commercial license. Buying such a license is mandatory as soon as you
 * develop commercial activities involving the iText software without
 * disclosing the source code of your own applications.
 * These activities include: offering paid services to customers as an ASP,
 * serving PDFs on the fly in a web application, shipping iText with a closed
 * source product.
 *
 * For more information, please contact iText Software Corp. at this
 * address: sales@itextpdf.com
 */
package com.itextpdf.tool.xml.html;

import java.util.ArrayList;
import java.util.List;

import com.itextpdf.text.*;
import com.itextpdf.tool.xml.NoCustomContextException;
import com.itextpdf.tool.xml.Tag;
import com.itextpdf.tool.xml.WorkerContext;
import com.itextpdf.tool.xml.exceptions.RuntimeWorkerException;

/**
 * @author redlab_b
 *
 */
public class OrderedUnorderedListItem extends AbstractTagProcessor {

	/* (non-Javadoc)
	 * @see com.itextpdf.tool.xml.TagProcessor#content(com.itextpdf.tool.xml.Tag, java.lang.String)
	 */
	@Override
	public List<Element> content(final WorkerContext ctx, final Tag tag, final String content) {
		return textContent(ctx, tag, content);
	}

	/* (non-Javadoc)
	 * @see com.itextpdf.tool.xml.TagProcessor#endElement(com.itextpdf.tool.xml.Tag, java.util.List)
	 */
	@Override
	public List<Element> end(final WorkerContext ctx, final Tag tag, final List<Element> currentContent) {
		List<Element> l = new ArrayList<Element>(1);
		ListItem li = new ListItem();
		float maxSize = -1;
		for (Element e : currentContent) {
			li.add(e);
			//finding max leading among list item elements
			for (Chunk chunk : e.getChunks()) {
				// here we use 4f/3 multiplied leading value to simulate leading which is used with default font size
				float currFontSize = chunk.getFont().getCalculatedLeading(4f/3);
				if (maxSize < currFontSize) {
					maxSize = currFontSize;
				}
			}
		}
		if (li.getLeading() < maxSize)
			li.setLeading(maxSize);
        if (li.trim()) {
		    l.add(li); // css applying is handled in the OrderedUnorderedList Class.
        }
		return l;
	}

	/* (non-Javadoc)
	 * @see com.itextpdf.tool.xml.TagProcessor#isStackOwner()
	 */
	@Override
	public boolean isStackOwner() {
		return true;
	}

}