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.markup.html.form; 018 019import org.apache.wicket.markup.ComponentTag; 020import org.apache.wicket.markup.MarkupStream; 021import org.apache.wicket.model.IModel; 022 023/** 024 * Multi-row text editing component. 025 * 026 * @author Jonathan Locke 027 * 028 * @param <T> 029 * The model object type 030 */ 031public class TextArea<T> extends AbstractTextComponent<T> 032{ 033 private static final long serialVersionUID = 1L; 034 035 /** 036 * @see org.apache.wicket.Component#Component(String) 037 */ 038 public TextArea(final String id) 039 { 040 super(id); 041 } 042 043 /** 044 * @param id 045 * @param model 046 * @see org.apache.wicket.Component#Component(String, IModel) 047 */ 048 public TextArea(final String id, final IModel<T> model) 049 { 050 super(id, model); 051 } 052 053 /** 054 * Handle the container's body. 055 * 056 * @param markupStream 057 * The markup stream 058 * @param openTag 059 * The open tag for the body 060 * @see org.apache.wicket.Component#onComponentTagBody(MarkupStream, ComponentTag) 061 */ 062 @Override 063 public void onComponentTagBody(final MarkupStream markupStream, final ComponentTag openTag) 064 { 065 checkComponentTag(openTag, "textarea"); 066 067 String value = getValue(); 068 if (value != null) 069 { 070 if (value.startsWith("\n")) 071 { 072 value = "\n" + value; 073 } 074 else if (value.startsWith("\r\n")) 075 { 076 value = "\r\n" + value; 077 } 078 else if (value.startsWith("\r")) 079 { 080 value = "\r" + value; 081 } 082 } 083 replaceComponentTagBody(markupStream, openTag, value); 084 } 085}