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Java > Open Source Codes > org > apache > jetspeed > modules > parameters > PopupCalendar


1 /*
2  * Copyright 2000-2001,2004 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16
17 package org.apache.jetspeed.modules.parameters;
18
19 // ECS support
20 import org.apache.ecs.html.Input;
21 import org.apache.ecs.html.IMG;
22 import org.apache.ecs.html.A;
23 import org.apache.ecs.html.Script;
24 import org.apache.ecs.ElementContainer;
25
26 // Java classes
27 import java.util.Map JavaDoc;
28 import java.util.Date JavaDoc;
29 import java.text.SimpleDateFormat JavaDoc;
30 import java.text.MessageFormat JavaDoc;
31
32 // Turbine support
33 import org.apache.turbine.util.RunData;
34
35 /**
36  * Presentation method to show a date input field with a popup calendar. Calendar is accessed by clicking the icon
37  * next to input field. For now, the only date format supported is mm/dd/yyyy. If value <code>$today</code> is passed, the date in the input field will default to today's date.
38  * <p>Options:
39  * <UL>
40  * <LI><code>$<name>.style.formName</code> - form name where the control is displayed; default=DefaultCustomizer</LI>
41  * <LI><code>$<name>.style.format</code> - date format to use for return value; default=mm/dd/yyyy.
42  * The date format can have three types of separators: hyphen(-), space( ), or slash(/), but must be consistent in their usage. E.g.
43  * d/m/yyyy
44  * The acceptable tokens are :
45  * <UL>
46  * <LI>d - day</LI>
47  * <LI>dd - day (padded with 0 if less than 10)</LI>
48  * <LI>m - month (in numbers)</LI>
49  * <LI>mm - month (in numbers, padded with 0 if less than 10)</LI>
50  * <LI>mmm - month (in words)</LI>
51  * <li>yyyy - year</LI>
52  * </UL>
53  * </LI>
54  * </UL>
55  * </p>
56  *
57  * @author <a HREF="morciuch@apache.org">Mark Orciuch</a>
58  * @version $Id: PopupCalendar.java,v 1.3 2004/02/23 03:01:20 jford Exp $
59  */
60 public class PopupCalendar extends ParameterPresentationStyle
61 {
62
63     public static final String JavaDoc PARM_FORM_NAME = "formName";
64     public static final String JavaDoc PARM_FORMAT = "format";
65
66     /**
67      * Method returning HTML markup for a date list box
68      */
69     public String JavaDoc getContent(RunData data, String JavaDoc name, String JavaDoc value, Map JavaDoc parms)
70     {
71
72         ElementContainer container = new ElementContainer();
73
74         if ( value.equals("$today") )
75         {
76             Date JavaDoc dt = new Date JavaDoc(System.currentTimeMillis());
77             value = new SimpleDateFormat JavaDoc("M/d/yyyy").format(dt);
78         }
79
80         container.addElement(new Script().setLanguage("JavaScript").setSrc("javascript/PopupCalendar.js"));
81
82         container.addElement(new Input(Input.TEXT, name, value));
83
84         IMG img = new IMG("images/cal.gif").setAlt("Click here for popup calendar").setBorder(0);
85         A a = new A(this.getJavaScript(name), img);
86
87         container.addElement(a);
88
89         return container.toString();
90     }
91
92     /**
93      * Returns body of the java script event handler
94      */
95     private String JavaDoc getJavaScript(String JavaDoc fieldName)
96     {
97
98         String JavaDoc formName = (String JavaDoc)this.getParm(PARM_FORM_NAME, "DefaultCustomizer");
99         String JavaDoc format = (String JavaDoc)this.getParm(PARM_FORMAT, "mm/dd/yyyy");
100
101         Object JavaDoc[] args = {
102             formName,
103             fieldName,
104             format
105         };
106
107         String JavaDoc template = "javascript: show_calendar(''{0}.{1}'',{0}.{1}.value,''{2}'');";
108
109         return new MessageFormat JavaDoc(template).format(args);
110
111     }
112
113     /**
114      * Test method
115      */
116     public static void main(String JavaDoc args[])
117     {
118
119         PopupCalendar pc = new PopupCalendar();
120         System.out.println(pc.getContent(null, "test", "08/01/2001", null));
121         System.out.println(pc.getContent(null, "test", "$today", null));
122
123     }
124
125 }
126
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