001/* 002 * Copyright (c) 2006-2011 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the Eclipse Public License v1.0 006 * which accompanies this distribution, and is available at 007 * http://www.eclipse.org/legal/epl-v10.html 008 * 009 * Contributors: 010 * bstefanescu 011 * 012 * $Id$ 013 */ 014 015package org.nuxeo.ecm.platform.rendering.fm.extensions; 016 017import java.io.IOException; 018import java.util.Map; 019 020import freemarker.core.Environment; 021import freemarker.template.SimpleScalar; 022import freemarker.template.TemplateDirectiveBody; 023import freemarker.template.TemplateDirectiveModel; 024import freemarker.template.TemplateException; 025import freemarker.template.TemplateModel; 026 027/** 028 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a> 029 */ 030public class BlockDirective implements TemplateDirectiveModel { 031 032 @Override 033 @SuppressWarnings("rawtypes") 034 public void execute(Environment env, Map params, TemplateModel[] loopVars, TemplateDirectiveBody body) 035 throws TemplateException, IOException { 036 037 String name = null; 038 SimpleScalar scalar = (SimpleScalar) params.get("name"); 039 if (scalar != null) { 040 name = scalar.getAsString(); 041 } 042 043 scalar = (SimpleScalar) params.get("ifBlockDefined"); 044 String ifBlockDefined = null; 045 if (scalar != null) { 046 ifBlockDefined = scalar.getAsString(); 047 } 048 049 String page = env.getTemplate().getName(); 050 BlockWriter writer = (BlockWriter) env.getOut(); 051 BlockWriterRegistry reg = writer.getRegistry(); 052 BlockWriter bw = new BlockWriter(page, name, reg); 053 bw.ifBlockDefined = ifBlockDefined; 054 writer.writeBlock(bw); 055 // render this block 056 if (body != null) { 057 body.render(bw); 058 } 059 } 060 061}