001/*
002 * JGrapes Event Driven Framework
003 * Copyright (C) 2020 Michael N. Lipp
004 * 
005 * This program is free software; you can redistribute it and/or modify it 
006 * under the terms of the GNU Affero General Public License as published by 
007 * the Free Software Foundation; either version 3 of the License, or 
008 * (at your option) any later version.
009 * 
010 * This program is distributed in the hope that it will be useful, but 
011 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
012 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License 
013 * for more details.
014 * 
015 * You should have received a copy of the GNU Affero General Public License along 
016 * with this program; if not, see <http://www.gnu.org/licenses/>.
017 */
018
019package org.jgrapes.webconlet.examples.styletest;
020
021import freemarker.core.ParseException;
022import freemarker.template.MalformedTemplateNameException;
023import freemarker.template.Template;
024import freemarker.template.TemplateNotFoundException;
025import java.io.IOException;
026import java.io.Serializable;
027import java.util.HashSet;
028import java.util.Set;
029import org.jgrapes.core.Channel;
030import org.jgrapes.core.Event;
031import org.jgrapes.core.Manager;
032import org.jgrapes.core.annotation.Handler;
033import org.jgrapes.webconsole.base.Conlet.RenderMode;
034import org.jgrapes.webconsole.base.ConsoleSession;
035import org.jgrapes.webconsole.base.WebConsoleUtils;
036import org.jgrapes.webconsole.base.events.AddConletType;
037import org.jgrapes.webconsole.base.events.AddPageResources.ScriptResource;
038import org.jgrapes.webconsole.base.events.ConsoleReady;
039import org.jgrapes.webconsole.base.events.RenderConlet;
040import org.jgrapes.webconsole.base.events.RenderConletRequestBase;
041import org.jgrapes.webconsole.base.events.SetLocale;
042import org.jgrapes.webconsole.base.freemarker.FreeMarkerConlet;
043
044/**
045 * 
046 */
047public class StyleTestConlet extends FreeMarkerConlet<Serializable> {
048
049    private static final Set<RenderMode> MODES
050        = RenderMode.asSet(RenderMode.View);
051
052    /**
053     * Creates a new component with its channel set to the given 
054     * channel.
055     * 
056     * @param componentChannel the channel that the component's 
057     * handlers listen on by default and that 
058     * {@link Manager#fire(Event, Channel...)} sends the event to 
059     */
060    public StyleTestConlet(Channel componentChannel) {
061        super(componentChannel);
062    }
063
064    /**
065     * Trigger loading of resources when the console is ready.
066     *
067     * @param event the event
068     * @param consoleSession the console session
069     * @throws TemplateNotFoundException the template not found exception
070     * @throws MalformedTemplateNameException the malformed template name exception
071     * @throws ParseException the parse exception
072     * @throws IOException Signals that an I/O exception has occurred.
073     */
074    @Handler
075    public void onConsoleReady(ConsoleReady event,
076            ConsoleSession consoleSession)
077            throws TemplateNotFoundException, MalformedTemplateNameException,
078            ParseException, IOException {
079        // Add HelloWorldConlet resources to page
080        consoleSession.respond(new AddConletType(type())
081            .addRenderMode(RenderMode.View).setDisplayNames(
082                localizations(consoleSession.supportedLocales(), "conletName"))
083            .addScript(new ScriptResource()
084                .setScriptType("module").setScriptUri(
085                    event.renderSupport().conletResource(type(),
086                        "StyleTest-functions.ftl.js")))
087            .addCss(event.renderSupport(), WebConsoleUtils.uriFromPath(
088                "StyleTest-style.css")));
089    }
090
091    @Override
092    protected Set<RenderMode> doRenderConlet(RenderConletRequestBase<?> event,
093            ConsoleSession channel, String conletId,
094            Serializable conletState) throws Exception {
095        Set<RenderMode> renderedAs = new HashSet<>();
096        if (event.renderAs().contains(RenderMode.View)) {
097            Template tpl
098                = freemarkerConfig().getTemplate("StyleTest-view.ftl.html");
099            channel.respond(new RenderConlet(type(), conletId,
100                processTemplate(event, tpl,
101                    fmModel(event, channel, conletId, conletState)))
102                        .setRenderAs(
103                            RenderMode.View.addModifiers(event.renderAs()))
104                        .setSupportedModes(MODES));
105            renderedAs.add(RenderMode.View);
106        }
107        return renderedAs;
108    }
109
110    @Override
111    protected boolean doSetLocale(SetLocale event, ConsoleSession channel,
112            String conletId) throws Exception {
113        return true;
114    }
115
116}