| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.myfaces.tobago.renderkit.css; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import javax.el.ELContext; |
| import javax.el.ValueExpression; |
| import javax.faces.context.FacesContext; |
| import java.lang.invoke.MethodHandles; |
| import java.util.StringTokenizer; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| /** |
| * Since Tobago 3.0.0 |
| */ |
| public class CustomClass implements CssItem { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass()); |
| |
| private static final Pattern CSS_CLASS_PATTERN = Pattern.compile("[\\w-]+"); |
| |
| private String name; |
| private ValueExpression valueExpression; |
| |
| public CustomClass(final String name) { |
| this.name = name; |
| } |
| |
| public CustomClass(final ValueExpression valueExpression) { |
| this.valueExpression = valueExpression; |
| } |
| |
| @Override |
| public String getName() { |
| final String string; |
| if (name != null) { |
| string = name; |
| } else if (valueExpression != null) { |
| final FacesContext facesContext = FacesContext.getCurrentInstance(); |
| final ELContext elContext = facesContext.getELContext(); |
| final Object valueExpressionValue = valueExpression.getValue(elContext); |
| if (valueExpressionValue != null) { |
| string = valueExpressionValue.toString(); |
| } else { |
| return ""; |
| } |
| } else { |
| return ""; |
| } |
| |
| final StringTokenizer tokenizer = new StringTokenizer(string, " "); |
| final StringBuilder result = new StringBuilder(); |
| boolean first = true; |
| while (tokenizer.hasMoreTokens()) { |
| final String token = tokenizer.nextToken(); |
| final Matcher matcher = CSS_CLASS_PATTERN.matcher(token); |
| if (matcher.matches()) { |
| if (!first) { |
| result.append(' '); |
| } |
| result.append(token); |
| first = false; |
| } else { |
| LOG.error("Invalid CSS class name: '{}' which is part of '{}'", token, string); |
| } |
| } |
| return result.toString(); |
| } |
| |
| /** |
| * @deprecated since 4.0.0 |
| */ |
| @Deprecated |
| public static CustomClass valueOf(final String text) { |
| return new CustomClass(text); |
| } |
| } |