001/*
002 * (C) Copyright 2006-2009 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Jean-Marc Orliaguet, Chalmers
018 *
019 * $Id$
020 */
021
022package org.nuxeo.theme.webengine.fm.extensions;
023
024import java.io.IOException;
025import java.io.Writer;
026import java.util.Map;
027
028import org.nuxeo.theme.html.ui.Button;
029
030import freemarker.core.Environment;
031import freemarker.template.TemplateDirectiveBody;
032import freemarker.template.TemplateDirectiveModel;
033import freemarker.template.TemplateException;
034import freemarker.template.TemplateModel;
035import freemarker.template.TemplateModelException;
036
037/**
038 * @author <a href="mailto:jmo@chalmers.se">Jean-Marc Orliaguet</a>
039 */
040public class NXThemesButtonDirective implements TemplateDirectiveModel {
041
042    @SuppressWarnings("unchecked")
043    public void execute(Environment env, Map params, TemplateModel[] loopVars, TemplateDirectiveBody body)
044            throws TemplateException, IOException {
045
046        if (loopVars.length != 0) {
047            throw new TemplateModelException("This directive doesn't allow loop variables.");
048        }
049        if (body != null) {
050            throw new TemplateModelException("Didn't expect a body");
051        }
052
053        Writer writer = env.getOut();
054        writer.write(Button.render(Utils.getTemplateDirectiveParameters(params)));
055    }
056}