DummyWidgetTypeHandler.java

/*
 * (C) Copyright 2006-2007 Nuxeo SAS (http://nuxeo.com/) and contributors.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Lesser General Public License
 * (LGPL) version 2.1 which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/lgpl.html
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * Contributors:
 *     <a href="mailto:at@nuxeo.com">Anahide Tchertchian</a>
 *
 * $Id: TestWidgetTypeHandler.java 28498 2008-01-05 11:46:25Z sfermigier $
 */

package org.nuxeo.ecm.platform.layout.facelets;

import javax.faces.component.html.HtmlInputText;
import javax.faces.component.html.HtmlOutputText;
import javax.faces.view.facelets.ComponentHandler;
import javax.faces.view.facelets.CompositeFaceletHandler;
import javax.faces.view.facelets.FaceletContext;
import javax.faces.view.facelets.FaceletHandler;
import javax.faces.view.facelets.TagAttributes;
import javax.faces.view.facelets.TagConfig;

import org.nuxeo.ecm.platform.forms.layout.api.BuiltinWidgetModes;
import org.nuxeo.ecm.platform.forms.layout.api.Widget;
import org.nuxeo.ecm.platform.forms.layout.api.exceptions.WidgetException;
import org.nuxeo.ecm.platform.forms.layout.facelets.FaceletHandlerHelper;
import org.nuxeo.ecm.platform.forms.layout.facelets.LeafFaceletHandler;
import org.nuxeo.ecm.platform.forms.layout.facelets.plugins.AbstractWidgetTypeHandler;

/**
 * Test widget that shows possibilities on how to write a widget tag handler.
 *
 * @author <a href="mailto:at@nuxeo.com">Anahide Tchertchian</a>
 */
public class DummyWidgetTypeHandler extends AbstractWidgetTypeHandler {

    private static final long serialVersionUID = 1495841177711755669L;

    @Override
    public FaceletHandler getFaceletHandler(FaceletContext ctx,
            TagConfig tagConfig, Widget widget, FaceletHandler[] subHandlers)
            throws WidgetException {
        FaceletHandlerHelper helper = new FaceletHandlerHelper(ctx, tagConfig);
        String mode = widget.getMode();
        String widgetTagConfigId = widget.getTagConfigId();
        FaceletHandler[] handlers = null;
        String originalId = helper.generateUniqueId();
        TagAttributes attributes = helper.getTagAttributes(originalId, widget);
        FaceletHandler leaf = new LeafFaceletHandler();
        if (BuiltinWidgetModes.VIEW.equals(mode)) {
            ComponentHandler output = helper.getHtmlComponentHandler(
                    widgetTagConfigId, attributes, leaf,
                    HtmlOutputText.COMPONENT_TYPE, null);
            handlers = new FaceletHandler[] { output };
        } else if (BuiltinWidgetModes.EDIT.equals(mode)) {
            ComponentHandler input = helper.getHtmlComponentHandler(
                    widgetTagConfigId, attributes, leaf,
                    HtmlInputText.COMPONENT_TYPE, null);
            String msgId = helper.generateUniqueId(originalId);
            ComponentHandler message = helper.getMessageComponentHandler(
                    widgetTagConfigId, msgId, originalId, "errorMessage");
            handlers = new FaceletHandler[] { input, message };
        }
        if (handlers == null) {
            return new LeafFaceletHandler();
        } else {
            return new CompositeFaceletHandler(handlers);
        }
    }
}