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.markdown.extensions.jspwikilinks.attributeprovider;
020
021import org.apache.wiki.WikiContext;
022import org.apache.wiki.markdown.nodes.JSPWikiLink;
023import org.apache.wiki.parser.LinkParsingOperations;
024import org.apache.wiki.parser.MarkupParser;
025
026import com.vladsch.flexmark.util.html.Attributes;
027
028
029/**
030 * {@link NodeAttributeProviderState} which sets the attributes for external links.
031 */
032public class ExternalLinkAttributeProviderState implements NodeAttributeProviderState< JSPWikiLink > {
033
034    private final boolean hasRef;
035    private final boolean m_useRelNofollow;
036    private final WikiContext wikiContext;
037    private final LinkParsingOperations linkOperations;
038
039    public ExternalLinkAttributeProviderState( final WikiContext wikiContext, final boolean hasRef ) {
040        this.hasRef = hasRef;
041        this.wikiContext = wikiContext;
042        this.linkOperations = new LinkParsingOperations( wikiContext );
043        this.m_useRelNofollow = wikiContext.getBooleanWikiProperty( MarkupParser.PROP_USERELNOFOLLOW, false );
044    }
045
046    /**
047     * {@inheritDoc}
048     *
049     * @see NodeAttributeProviderState#setAttributes(Attributes, JSPWikiLink)
050     */
051    @Override
052    public void setAttributes( final Attributes attributes, final JSPWikiLink link ) {
053        if( linkOperations.isImageLink( link.getUrl().toString() ) ) {
054            new ImageLinkAttributeProviderState( wikiContext, link.getText().toString(), hasRef ).setAttributes( attributes, link );
055        } else {
056            attributes.replaceValue( "class", MarkupParser.CLASS_EXTERNAL );
057            attributes.replaceValue( "href", link.getUrl().toString() );
058        }
059        if( m_useRelNofollow ) {
060            attributes.replaceValue( "rel", "nofollow" );
061        }
062    }
063
064}