    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.postprocessor;
    020
    021import com.vladsch.flexmark.util.ast.Node;
    022import com.vladsch.flexmark.util.ast.NodeTracker;
    023import com.vladsch.flexmark.util.sequence.CharSubSequence;
    024import org.apache.wiki.api.core.Context;
    025import org.apache.wiki.markdown.nodes.JSPWikiLink;
    026import org.apache.wiki.parser.LinkParsingOperations;
    027
    028
    029/**
    030 * {@link NodePostProcessorState} which further post processes image links.
    031 */
    032public class ImageLinkNodePostProcessorState implements NodePostProcessorState< JSPWikiLink > {
    033
    034    private final boolean isLinkFromText;
    035    private final String urlRef;
    036    private final LinkParsingOperations linkOperations;
    037
    038    public ImageLinkNodePostProcessorState( final Context wikiContext, final String urlRef, final boolean isLinkFromText ) {
    039        this.isLinkFromText = isLinkFromText;
    040        this.urlRef = urlRef;
    041        this.linkOperations = new LinkParsingOperations( wikiContext );
    042    }
    043
    044    /**
    045     * {@inheritDoc}
    046     *
    047     * @see NodePostProcessorState#process(NodeTracker, Node)
    048     */
    049    @Override
    050    public void process( final NodeTracker state, final JSPWikiLink link ) {
    051        final WikiHtmlInline img = WikiHtmlInline.of( "<img class=\"inline\" " +
    052                                                               "src=\"" + urlRef + "\" " +
    053                                                               "alt=\"" + link.getText().toString() + "\" />" );
    054        if( ( isLinkFromText && linkOperations.isExternalLink( link.getText().toString() ) ) ||
    055                ( isLinkFromText && linkOperations.linkExists( link.getText().toString() ) ) ) {
    056            link.setUrl( CharSubSequence.of( urlRef ) );
    057            link.removeChildren();
    058            link.appendChild( img );
    059            state.nodeAdded( img );
    060        } else {
    061            NodePostProcessorStateCommonOperations.addContent( state, link, img );
    062        }
    063    }
    064
    065}