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Java > Open Source Codes > com > jcorporate > expresso > services > html > HiddenField


1 /* ====================================================================
2  * The Jcorporate Apache Style Software License, Version 1.2 05-07-2002
3  *
4  * Copyright (c) 1995-2002 Jcorporate Ltd. All rights reserved.
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19  * if any, must include the following acknowledgment:
20  * "This product includes software developed by Jcorporate Ltd.
21  * (http://www.jcorporate.com/)."
22  * Alternately, this acknowledgment may appear in the software itself,
23  * if and wherever such third-party acknowledgments normally appear.
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58  * on Jcorporate Ltd. and its products, please see
59  * <http://www.jcorporate.com/>.
60  *
61  * Portions of this software are based upon other open source
62  * products and are subject to their respective licenses.
63  */
64
65 package com.jcorporate.expresso.services.html;
66
67 /**
68  * HiddenField.java
69  *
70  * Copyright 1999, 2000, 2001 Jcorporate Ltd.
71  */
72
73 import java.io.PrintWriter JavaDoc;
74
75
76 /**
77  * A field on an HTML form that is not displayed
78  *
79  * @author Michael Nash
80  * @version $Revision: 1.8 $ $Date: 2004/11/17 20:48:18 $
81  */
82 public class HiddenField
83         extends HtmlElement {
84     protected String JavaDoc fieldName = null;
85     protected String JavaDoc fieldValue = ("");
86
87     /**
88      * Constructor
89      *
90      * @throws HtmlException If the superclass constructor fails
91      */
92     public HiddenField()
93             throws HtmlException {
94         super();
95     } /* HiddenField() */
96
97     /**
98      * Constructor
99      * Create a hidden field with the given name and value
100      *
101      * @param newFieldName Field name for the hidden field
102      * @param newFieldValue Value for the hidden field
103      * @throws HtmlException If the parameters are invalid
104      */
105     public HiddenField(String JavaDoc newFieldName, String JavaDoc newFieldValue)
106             throws HtmlException {
107         super(newFieldName);
108         fieldName = newFieldName;
109         fieldValue = newFieldValue;
110     } /* HiddenField(String, String) */
111
112     /**
113      * "Display" the hidden field to a form
114      *
115      * @param out PrintWriter to display
116      * @param depth the number of tabs to indent
117      * @throws HtmlException If the field could not be displayed
118      */
119     protected void display(PrintWriter JavaDoc out, int depth)
120             throws HtmlException {
121         this.padWithTabs(out, depth);
122         out.print("<input");
123
124         if (cSSClass != null) {
125             out.print(" class=\"" + cSSClass + "\"");
126         }
127         if (cSSID != null) {
128             out.print(" id=\"" + cSSID + "\"");
129         }
130
131         out.println(" type=hidden name=" + fieldName + " value=\"" +
132                 fieldValue + "\"/>");
133         setDisplayed();
134     } /* display(PrintWriter) */
135
136
137 } /* HiddenField */
138
139 /* HiddenField */
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