001/*
002 * (C) Copyright 2015 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.web.resources.jsf;
018
019import java.io.IOException;
020import java.util.Map;
021
022import javax.faces.component.UIComponent;
023import javax.faces.context.FacesContext;
024import javax.faces.context.ResponseWriter;
025
026import org.apache.commons.logging.Log;
027import org.apache.commons.logging.LogFactory;
028import org.nuxeo.ecm.web.resources.api.Resource;
029import org.nuxeo.ecm.web.resources.api.ResourceType;
030import org.nuxeo.ecm.web.resources.api.service.WebResourceManager;
031
032/**
033 * Renderer for JavaScript, CSS and HTML resources declared on the {@link WebResourceManager} extension point.
034 *
035 * @since 7.3
036 */
037public class ResourceRenderer extends AbstractResourceRenderer {
038
039    private static final Log log = LogFactory.getLog(ResourceRenderer.class);
040
041    @Override
042    public void encodeEnd(FacesContext context, UIComponent component) throws IOException {
043        Resource resource = null;
044        String url = null;
045        Map<String, Object> attributes = component.getAttributes();
046        String name = (String) attributes.get("name");
047        if (name != null) {
048            resource = resolveNuxeoResource(context, component, name);
049            if (resource == null) {
050                log.error("Resource not found: " + name);
051                return;
052            }
053            url = getUrlWithParams(context, component,
054                    resolveNuxeoResourceUrl(context, component, resolveNuxeoResourcePath(resource)));
055        }
056        ResponseWriter writer = context.getResponseWriter();
057        if (ResourceType.css.matches(resource)) {
058            writer.startElement("link", component);
059            writer.writeAttribute("type", "text/css", "type");
060            writer.writeAttribute("rel", "stylesheet", "rel");
061            writer.writeURIAttribute("href", url, "href");
062            writer.endElement("link");
063        } else if (ResourceType.js.matches(resource)) {
064            writer.startElement("script", component);
065            writer.writeAttribute("type", "text/javascript", "type");
066            writer.writeURIAttribute("src", url, "src");
067            writer.endElement("script");
068        } else if (ResourceType.html.matches(resource)) {
069            writer.startElement("link", component);
070            writer.writeAttribute("rel", "import", "rel");
071            writer.writeURIAttribute("href", url, "href");
072            writer.endElement("link");
073        } else {
074            log.error("Unhandled type for resource " + resource);
075        }
076    }
077
078    @Override
079    protected void startElement(ResponseWriter writer, UIComponent component) throws IOException {
080        // NOOP
081    }
082
083    @Override
084    protected void endElement(ResponseWriter writer) throws IOException {
085        // NOOP
086    }
087
088}