001/*
002 * (C) Copyright 2013 Nuxeo SA (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-2.1.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 *     Anahide Tchertchian
016 */
017package org.nuxeo.ecm.platform.forms.layout.facelets.dev;
018
019import java.io.IOException;
020
021import javax.el.ELException;
022import javax.faces.FacesException;
023import javax.faces.component.UIComponent;
024import javax.faces.view.facelets.FaceletContext;
025import javax.faces.view.facelets.FaceletException;
026import javax.faces.view.facelets.TagAttribute;
027import javax.faces.view.facelets.TagAttributes;
028import javax.faces.view.facelets.TagConfig;
029import javax.faces.view.facelets.TagHandler;
030
031import org.nuxeo.ecm.platform.forms.layout.api.BuiltinModes;
032import org.nuxeo.ecm.platform.forms.layout.api.Layout;
033import org.nuxeo.ecm.platform.forms.layout.facelets.FaceletHandlerHelper;
034import org.nuxeo.ecm.platform.ui.web.tag.handler.TagConfigFactory;
035
036import com.sun.faces.facelets.tag.ui.DecorateHandler;
037
038/**
039 * Dev tag handler for layouts, retrieving the template on the layout definition (or its type definition) using the
040 * template defined in mode {@link BuiltinModes#DEV}.
041 * <p>
042 * When no template is defined, this handler is skipped.
043 *
044 * @since 6.0
045 */
046public class LayoutDevTagHandler extends TagHandler {
047
048    protected final TagConfig config;
049
050    protected final TagAttribute layout;
051
052    public LayoutDevTagHandler(TagConfig config) {
053        super(config);
054        this.config = config;
055        this.layout = getRequiredAttribute("layout");
056    }
057
058    @Override
059    public void apply(FaceletContext ctx, UIComponent parent) throws IOException, FacesException, FaceletException,
060            ELException {
061        Layout layoutInstance = (Layout) layout.getObject(ctx, Layout.class);
062        FaceletHandlerHelper helper = new FaceletHandlerHelper(ctx, config);
063        TagAttribute templateAttr = helper.createAttribute("template", layoutInstance.getDevTemplate());
064        TagAttributes attributes = FaceletHandlerHelper.getTagAttributes(templateAttr);
065        String widgetTagConfigId = layoutInstance.getTagConfigId();
066        TagConfig config = TagConfigFactory.createTagConfig(this.config, widgetTagConfigId, attributes, nextHandler);
067        DecorateHandler includeHandler = new DecorateHandler(config);
068        includeHandler.apply(ctx, parent);
069    }
070
071}