001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.wicket.bean.validation;
018
019import jakarta.validation.constraints.Size;
020
021import org.apache.wicket.markup.ComponentTag;
022import org.apache.wicket.markup.html.form.FormComponent;
023
024/**
025 * A tag modifier that adds the {@code maxlength} and  {@code minlength} attributes to the {@code input}
026 * and {@code textarea} tag with the max/min value from the {@link Size} constraint annotation.
027 * 
028 * @author igor
029 * 
030 */
031public class SizeTagModifier implements ITagModifier<Size>
032{
033        @Override
034        public void modify(FormComponent<?> component, ComponentTag tag, Size annotation)
035        {
036                if (hasLengthAttribute(tag.getName()))
037                {
038                        tag.put("maxlength", annotation.max());
039
040                        if (annotation.min() > 0)
041                        {
042                                tag.put("minlength", annotation.min());
043                        }
044                }
045        }
046
047        protected boolean hasLengthAttribute(String tagName)
048        {
049                return "input".equalsIgnoreCase(tagName) || "textarea".equalsIgnoreCase(tagName);
050        }
051}