001/*
002 * (C) Copyright 2006-2009 Nuxeo SAS (http://nuxeo.com/) and contributors.
003 *
004 * All rights reserved. This program and the accompanying materials
005 * are made available under the terms of the GNU Lesser General Public License
006 * (LGPL) version 2.1 which accompanies this distribution, and is available at
007 * http://www.gnu.org/licenses/lgpl.html
008 *
009 * This library is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012 * Lesser General Public License for more details.
013 *
014 * Contributors:
015 *     Jean-Marc Orliaguet, Chalmers
016 *
017 * $Id$
018 */
019
020package org.nuxeo.theme.webengine.fm.extensions;
021
022import java.io.ByteArrayInputStream;
023import java.io.IOException;
024import java.io.StringWriter;
025import java.io.Writer;
026import java.util.ArrayList;
027import java.util.HashMap;
028import java.util.List;
029import java.util.Map;
030
031import javax.xml.parsers.DocumentBuilderFactory;
032import javax.xml.parsers.ParserConfigurationException;
033
034import org.w3c.dom.DOMException;
035import org.w3c.dom.Document;
036import org.w3c.dom.NamedNodeMap;
037import org.w3c.dom.Node;
038import org.w3c.dom.NodeList;
039import org.xml.sax.SAXException;
040
041import freemarker.core.Environment;
042import freemarker.template.TemplateDirectiveBody;
043import freemarker.template.TemplateDirectiveModel;
044import freemarker.template.TemplateException;
045import freemarker.template.TemplateModel;
046import freemarker.template.TemplateModelException;
047
048/**
049 * @author <a href="mailto:jmo@chalmers.se">Jean-Marc Orliaguet</a>
050 */
051public class NXThemesTabsDirective implements TemplateDirectiveModel {
052
053    @SuppressWarnings("unchecked")
054    public void execute(Environment env, Map params, TemplateModel[] loopVars, TemplateDirectiveBody body)
055            throws TemplateException, IOException {
056
057        if (loopVars.length != 0) {
058            throw new TemplateModelException("This directive doesn't allow loop variables.");
059        }
060        if (body == null) {
061            throw new TemplateModelException("Expected a body");
062        }
063
064        Map<String, String> attributes = Utils.getTemplateDirectiveParameters(params);
065        String identifier = attributes.get("identifier");
066        String styleClass = attributes.get("styleClass");
067        String controlledBy = attributes.get("controlledBy");
068
069        // view
070        final Map<String, Object> view = new HashMap<String, Object>();
071        view.put("id", identifier);
072        final Map<String, Object> widget = new HashMap<String, Object>();
073        widget.put("type", "tabs");
074        if (styleClass != null) {
075            widget.put("styleClass", styleClass);
076        }
077        if (null != controlledBy) {
078            view.put("controllers", controlledBy.split(","));
079        }
080
081        StringWriter sw = new StringWriter();
082        body.render(sw);
083        String content = String.format("<tabs>%s</tabs>", sw.getBuffer().toString());
084
085        final List<Map<String, String>> items = new ArrayList<Map<String, String>>();
086
087        // Parse the XML content
088        final DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
089        try {
090            Document doc = dbf.newDocumentBuilder().parse(new ByteArrayInputStream(content.getBytes()));
091            NodeList itemList = doc.getElementsByTagName("tab");
092            for (int i = 0; i < itemList.getLength(); i++) {
093                Node itemNode = itemList.item(i);
094                NamedNodeMap attrs = itemNode.getAttributes();
095                Node link = attrs.getNamedItem("link");
096                Node label = attrs.getNamedItem("label");
097                Node switchTo = attrs.getNamedItem("switchTo");
098                Map<String, String> itemMap = new HashMap<String, String>();
099                if (link != null) {
100                    itemMap.put("link", link.getNodeValue());
101                }
102                if (label != null) {
103                    itemMap.put("label", label.getNodeValue());
104                }
105                if (switchTo != null) {
106                    itemMap.put("switchTo", switchTo.getNodeValue());
107                }
108                items.add(itemMap);
109            }
110        } catch (ParserConfigurationException | SAXException | DOMException e) {
111        }
112
113        widget.put("items", items);
114        view.put("widget", widget);
115
116        Writer writer = env.getOut();
117        writer.write(String.format("<ins class=\"view\">%s</ins>", org.nuxeo.theme.html.Utils.toJson(view)));
118
119    }
120}