001/* 002 * (C) Copyright 2006-2007 Nuxeo SAS <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 * Jean-Marc Orliaguet, Chalmers 011 * 012 * $Id$ 013 */ 014 015package org.nuxeo.theme.html; 016 017import java.util.regex.Matcher; 018import java.util.regex.Pattern; 019 020import org.apache.commons.logging.Log; 021import org.apache.commons.logging.LogFactory; 022import org.nuxeo.theme.elements.Element; 023import org.nuxeo.theme.fragments.Fragment; 024import org.nuxeo.theme.fragments.FragmentType; 025import org.nuxeo.theme.rendering.RenderingInfo; 026import org.nuxeo.theme.views.TemplateView; 027import org.nuxeo.theme.views.ViewType; 028 029public class HTMLView extends TemplateView { 030 031 private static final Log log = LogFactory.getLog(HTMLView.class); 032 033 private static final Pattern firstTagPattern = Pattern.compile("<([a-zA-Z0-9:]*)[^>]*>", Pattern.DOTALL); 034 035 private static final String[] ALLOWED_TAGS = { "html", "body", "table", "tr", "td", "div" }; 036 037 @Override 038 public String render(final RenderingInfo info) { 039 final ViewType viewType = getViewType(); 040 final String template = viewType.getTemplate(); 041 String result = getTemplateContent(template); 042 043 // Sanity check 044 final Matcher matcher = firstTagPattern.matcher(result); 045 if (matcher.find()) { 046 final String tag = matcher.group(1).toLowerCase(); 047 boolean found = false; 048 for (String allowedTag : ALLOWED_TAGS) { 049 if (tag.equals(allowedTag)) { 050 found = true; 051 } 052 } 053 if (!found) { 054 // log.warn(String.format( 055 // "First HTML tag of view template: %s (<%s>) not one of <html>, <body>, <div>, <table>, <tr>, <td>", 056 // template, tag)); 057 } 058 } else { 059 log.warn("First HTML tag of view template: " + template + " not found"); 060 } 061 062 // replace model expressions 063 final Element element = info.getElement(); 064 if (element instanceof Fragment) { 065 final Fragment fragment = (Fragment) element; 066 if (!info.isDirty() && hasModelExpressions(result)) { 067 final FragmentType fragmentType = fragment.getFragmentType(); 068 String fragmentTypeName = fragmentType.getTypeName(); 069 log.warn(String.format( 070 "Cannot render \"%s\" with the view \"%s\" because the view's template contains a 'nxthemesInfo' variable and the fragment type is not declared as dynamic. Try to add <dynamic>true</dynamic> in the <fragment name=\"%s\"> definition.", 071 fragmentTypeName, getViewType().getViewName(), fragmentTypeName)); 072 return ""; 073 } 074 result = replaceModelExpressions(info, result); 075 } 076 077 String cssClassName = element.getCssClassName(); 078 if (cssClassName != null) { 079 result = CSSUtils.insertCssClass(result, cssClassName); 080 } 081 082 // replace [nxthemes markup] strings with the actual markup 083 result = result.replace("[nxthemes markup]", info.getMarkup()); 084 085 return result; 086 } 087 088 public String replaceModelExpressions(@SuppressWarnings("unused") final RenderingInfo info, final String html) { 089 return html; 090 } 091 092 public boolean hasModelExpressions(final String html) { 093 return html.contains("nxthemesInfo"); 094 } 095 096}