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


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.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  * notice, this list of conditions and the following disclaimer.
12  *
13  * 2. Redistributions in binary form must reproduce the above copyright
14  * notice, this list of conditions and the following disclaimer in
15  * the documentation and/or other materials provided with the
16  * distribution.
17  *
18  * 3. The end-user documentation included with the redistribution,
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.
24  *
25  * 4. "Jcorporate" and product names such as "Expresso" must
26  * not be used to endorse or promote products derived from this
27  * software without prior written permission. For written permission,
28  * please contact info@jcorporate.com.
29  *
30  * 5. Products derived from this software may not be called "Expresso",
31  * or other Jcorporate product names; nor may "Expresso" or other
32  * Jcorporate product names appear in their name, without prior
33  * written permission of Jcorporate Ltd.
34  *
35  * 6. No product derived from this software may compete in the same
36  * market space, i.e. framework, without prior written permission
37  * of Jcorporate Ltd. For written permission, please contact
38  * partners@jcorporate.com.
39  *
40  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
41  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
42  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
43  * DISCLAIMED. IN NO EVENT SHALL JCORPORATE LTD OR ITS CONTRIBUTORS
44  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
45  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
46  * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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48  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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50  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51  * SUCH DAMAGE.
52  * ====================================================================
53  *
54  * This software consists of voluntary contributions made by many
55  * individuals on behalf of the Jcorporate Ltd. Contributions back
56  * to the project(s) are encouraged when you make modifications.
57  * Please send them to support@jcorporate.com. For more information
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  * Button.java
69  *
70  * Copyright 1999, 2000, 2001 Jcorporate Ltd.
71  */
72
73 import java.io.PrintWriter JavaDoc;
74
75
76 /**
77  * Button
78  * A button for an HTML form
79  *
80  * @author Michael P. Nash
81  * @version $Revision: 1.8 $ $Date: 2004/11/17 20:48:18 $
82  */
83 public class Button
84         extends HtmlElement {
85     private String JavaDoc fieldName = null;
86     private String JavaDoc fieldValue = ("");
87     private String JavaDoc thisClass = (this.getClass().getName() + ".");
88
89     /**
90      * Constructor: No arguments constructor to be able to create a basic
91      * button & set options individually
92      *
93      * @throws HtmlException If the constructor fails
94      */
95     public Button()
96             throws HtmlException {
97         super();
98     } /* Button() */
99
100     /**
101      * Constructor
102      *
103      * @param newFieldName Field name for the new button - must not be null
104      * @param newFieldValue Field value for the new button - must not be null
105      * @throws HtmlException If the initial parameters are invalid
106      */
107     public Button(String JavaDoc newFieldName, String JavaDoc newFieldValue)
108             throws HtmlException {
109         super(newFieldName);
110
111         String JavaDoc myName = (thisClass + "Button(String, String)");
112
113         if (newFieldName == null) {
114             throw new HtmlException(myName + ":Field name must not be " +
115                     "null for " + getName());
116         }
117
118         fieldName = newFieldName;
119
120         if (newFieldValue == null) {
121             throw new HtmlException(myName +
122                     ":Field value must not be null for " +
123                     getName());
124         }
125
126         fieldValue = newFieldValue;
127     } /* Button(String, String) */
128
129     /**
130      * Implement the standard display method for this element
131      *
132      * @param out A valid PrintWriter to which to send the output
133      * @param depth the number of tabs to indent
134      * @throws HtmlException If the button could not be properly displayed
135      */
136     protected void display(PrintWriter JavaDoc out, int depth)
137             throws HtmlException {
138         this.padWithTabs(out, depth);
139         out.print("<input");
140
141         if (cSSClass != null) {
142             out.print(" class=\"" + cSSClass + "\"");
143         }
144         if (cSSID != null) {
145             out.print(" id=\"" + cSSID + "\"");
146         }
147
148         out.println(" type=submit name=" + fieldName + " value=\"" +
149                 fieldValue + "\">");
150         setDisplayed();
151     } /* display(PrintWriter) */
152
153
154 } /* Button */
155
156 /* Button */
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