001/*
002    Licensed to the Apache Software Foundation (ASF) under one
003    or more contributor license agreements.  See the NOTICE file
004    distributed with this work for additional information
005    regarding copyright ownership.  The ASF licenses this file
006    to you under the Apache License, Version 2.0 (the
007    "License"); you may not use this file except in compliance
008    with the License.  You may obtain a copy of the License at
009
010       http://www.apache.org/licenses/LICENSE-2.0
011
012    Unless required by applicable law or agreed to in writing,
013    software distributed under the License is distributed on an
014    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015    KIND, either express or implied.  See the License for the
016    specific language governing permissions and limitations
017    under the License.
018 */
019package org.apache.wiki.htmltowiki.syntax;
020
021import org.apache.wiki.htmltowiki.XHtmlElementToWikiTranslator;
022import org.jdom2.Element;
023import org.jdom2.JDOMException;
024
025import java.io.PrintWriter;
026
027
028/**
029 * Translates to wiki syntax from a plain text handling italic.
030 */
031public abstract class PlainTextItalicDecorator {
032
033    final protected PrintWriter out;
034    final protected XHtmlElementToWikiTranslator chain;
035    final protected PlainTextMonospaceDecorator ptmd;
036
037    protected PlainTextItalicDecorator( final PlainTextMonospaceDecorator ptmd, final PrintWriter out, final XHtmlElementToWikiTranslator chain ) {
038        this.out = out;
039        this.chain = chain;
040        this.ptmd = ptmd;
041    }
042
043    /**
044     * Translates the given XHTML element into wiki markup.
045     *
046     * @param dto XHTML element being translated.
047     */
048    public void decorate( final XHtmlElementToWikiTranslator.ElementDecoratorData dto ) throws JDOMException {
049        if( dto.italic ) {
050            out.print( markupItalicOpen() );
051        }
052        ptmd.decorate( dto );
053        if( dto.italic ) {
054            out.print( markupItalicClose() );
055        }
056    }
057
058    /**
059     * Translates the given XHTML element into wiki markup.
060     *
061     * @param e XHTML element being translated.
062     */
063    public void decorate( final Element e ) throws JDOMException {
064        out.print( markupItalicOpen() );
065        chain.translate( e );
066        out.print( markupItalicClose() );
067    }
068
069    /**
070     * Opening wiki markup for an italic element.
071     *
072     * @return Opening wiki markup for an italic element.
073     */
074    protected abstract String markupItalicOpen();
075
076    /**
077     * Closing wiki markup for an italic element.
078     *
079     * @return Closing wiki markup for an italic element.
080     */
081    protected abstract String markupItalicClose();
082
083}