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.ast.HtmlInline;
022import com.vladsch.flexmark.util.ast.Node;
023import com.vladsch.flexmark.util.ast.NodeTracker;
024import com.vladsch.flexmark.util.sequence.CharSubSequence;
025import org.apache.commons.text.StringEscapeUtils;
026import org.apache.wiki.api.core.Context;
027import org.apache.wiki.api.exceptions.NoSuchVariableException;
028import org.apache.wiki.markdown.nodes.JSPWikiLink;
029import org.apache.wiki.variables.VariableManager;
030
031
032/**
033 * {@link NodePostProcessorState} which further post processes WikiVariable links.
034 */
035public class VariableLinkNodePostProcessorState implements NodePostProcessorState< JSPWikiLink > {
036
037    private final Context wikiContext;
038    private final boolean m_wysiwygEditorMode;
039
040    public VariableLinkNodePostProcessorState( final Context wikiContext ) {
041        this.wikiContext = wikiContext;
042        final Boolean wysiwygVariable = wikiContext.getVariable( Context.VAR_WYSIWYG_EDITOR_MODE );
043        m_wysiwygEditorMode = wysiwygVariable != null && wysiwygVariable;
044    }
045
046    /**
047     * {@inheritDoc}
048     *
049     * @see NodePostProcessorState#process(NodeTracker, Node)
050     */
051    @Override
052    public void process( final NodeTracker state, final JSPWikiLink link ) {
053        final String variable = NodePostProcessorStateCommonOperations.inlineLinkTextOnWysiwyg( state, link, m_wysiwygEditorMode );
054        if( !m_wysiwygEditorMode ) {
055            try {
056                final String parsedVariable = wikiContext.getEngine().getManager( VariableManager.class ).parseAndGetValue( wikiContext, variable );
057                final HtmlInline content = new HtmlInline( CharSubSequence.of( StringEscapeUtils.escapeXml11( parsedVariable ) ) );
058                NodePostProcessorStateCommonOperations.addContent( state, link, content );
059            } catch( final NoSuchVariableException e ) {
060                NodePostProcessorStateCommonOperations.makeError( state, link, "No such variable: " + variable + " (" + e.getMessage() + ")" );
061            }
062        }
063    }
064
065}