View Javadoc

1   /*
2    * $Id: CancelTag.java 471754 2006-11-06 14:55:09Z husted $
3    *
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *  http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  package org.apache.struts.taglib.html;
22  
23  import javax.servlet.jsp.JspException;
24  
25  /**
26   * Tag for input fields of type "cancel".
27   *
28   * @version $Rev: 471754 $ $Date: 2004-10-17 02:40:12 -0400 (Sun, 17 Oct 2004)
29   *          $
30   */
31  public class CancelTag extends SubmitTag {
32      // --------------------------------------------------------- Constructor
33      public CancelTag() {
34          super();
35          property = Constants.CANCEL_PROPERTY;
36      }
37  
38      // ------------------------------------------------------------- Properties
39  
40      /**
41       * Returns the onClick event handler.
42       */
43      public String getOnclick() {
44          return (super.getOnclick() == null) ? "bCancel=true;" : super
45          .getOnclick();
46      }
47  
48      // --------------------------------------------------------- Protected Methods
49  
50      /**
51       * Render the opening element.
52       *
53       * @return The opening part of the element.
54       */
55      protected String getElementOpen() {
56          return "<input type=\"submit\"";
57      }
58  
59      /**
60       * Prepare the name element
61       *
62       * @return The element name.
63       */
64      protected String prepareName()
65          throws JspException {
66          return property;
67      }
68  
69      /**
70       * Return the default value.
71       *
72       * @return The default value if none supplied.
73       */
74      protected String getDefaultValue() {
75          return "Cancel";
76      }
77  
78      /**
79       * Release any acquired resources.
80       */
81      public void release() {
82          super.release();
83          property = Constants.CANCEL_PROPERTY;
84      }
85  }