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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
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 * KIND, either express or implied.  See the License for the
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package com.sun.star.report.pentaho.parser.office;

import com.sun.star.report.pentaho.OfficeNamespaces;
import com.sun.star.report.pentaho.model.OfficeMasterStyles;
import com.sun.star.report.pentaho.parser.ElementReadHandler;
import com.sun.star.report.pentaho.parser.style.MasterPageReadHandler;
import com.sun.star.report.pentaho.parser.style.StyleDefinitionReadHandler;

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

import org.jfree.report.structure.Element;

import org.pentaho.reporting.libraries.xmlns.parser.XmlReadHandler;

import org.xml.sax.Attributes;
import org.xml.sax.SAXException;


/**
 * Todo: Document me!
 *
 * @author Thomas Morgner
 * @since 13.03.2007
 */
public class MasterStylesReadHandler extends ElementReadHandler
{

    private final OfficeMasterStyles masterStyles;
    private final List otherHandlers;
    private final List masterPageHandlers;

    public MasterStylesReadHandler(final OfficeMasterStyles masterStyles)
    {
        this.masterStyles = masterStyles;
        this.masterPageHandlers = new ArrayList();
        this.otherHandlers = new ArrayList();
    }

    public OfficeMasterStyles getMasterStyles()
    {
        return masterStyles;
    }

    /**
     * Returns the handler for a child element.
     *
     * @param tagName the tag name.
     * @param atts    the attributes.
     * @return the handler or null, if the tagname is invalid.
     *
     * @throws org.xml.sax.SAXException if there is a parsing error.
     */
    protected XmlReadHandler getHandlerForChild(final String uri,
            final String tagName,
            final Attributes atts)
            throws SAXException
    {
        if (OfficeNamespaces.STYLE_NS.equals(uri) && "master-page".equals(tagName))
        {
            final MasterPageReadHandler mrh = new MasterPageReadHandler();
            masterPageHandlers.add(mrh);
            return mrh;
        }

        final StyleDefinitionReadHandler readHandler =
                new StyleDefinitionReadHandler();
        otherHandlers.add(readHandler);
        return readHandler;
    }

    /**
     * Done parsing.
     *
     * @throws org.xml.sax.SAXException if there is a parsing error.
     */
    protected void doneParsing()
            throws SAXException
    {
        for (int i = 0; i < otherHandlers.size(); i++)
        {
            final ElementReadHandler handler =
                    (ElementReadHandler) otherHandlers.get(i);
            masterStyles.getOtherNodes().addNode(handler.getElement());
        }

        for (int i = 0; i < masterPageHandlers.size(); i++)
        {
            final MasterPageReadHandler handler =
                    (MasterPageReadHandler) masterPageHandlers.get(i);
            masterStyles.addMasterPage(handler.getMasterPage());
        }
    }

    public Element getElement()
    {
        return masterStyles;
    }
}
