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Java > Open Source Codes > ClipboardHandler


1 /*
2  * @(#)ClipboardHandler.java 1.5 05/11/17
3  *
4  * Copyright (c) 2006 Sun Microsystems, Inc. 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 are met:
8  *
9  * -Redistribution of source code must retain the above copyright notice, this
10  * list of conditions and the following disclaimer.
11  *
12  * -Redistribution in binary form must reproduce the above copyright notice,
13  * this list of conditions and the following disclaimer in the documentation
14  * and/or other materials provided with the distribution.
15  *
16  * Neither the name of Sun Microsystems, Inc. or the names of contributors may
17  * be used to endorse or promote products derived from this software without
18  * specific prior written permission.
19  *
20  * This software is provided "AS IS," without a warranty of any kind. ALL
21  * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
22  * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
23  * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN")
24  * AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE
25  * AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
26  * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST
27  * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL,
28  * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY
29  * OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE,
30  * EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
31  *
32  * You acknowledge that this software is not designed, licensed or intended
33  * for use in the design, construction, operation or maintenance of any
34  * nuclear facility.
35  */
36
37 import javax.jnlp.ClipboardService;
38 import javax.jnlp.ServiceManager;
39 import javax.jnlp.UnavailableServiceException;
40 import java.awt.datatransfer.Transferable JavaDoc;
41 import java.awt.datatransfer.StringSelection JavaDoc;
42 import java.awt.datatransfer.DataFlavor JavaDoc;
43 import java.io.IOException JavaDoc;
44
45 /**
46  */
47 public class ClipboardHandler {
48     static private boolean _initialized = false;
49     static private ClipboardService _cs = null;
50     static private String JavaDoc _content = "";
51     
52     public static void toClipboard(String JavaDoc txt) {
53     System.out.println("toClipboard: " + txt);
54     initialize();
55     if (_cs != null) {
56         _cs.setContents(new StringSelection JavaDoc(txt));
57     } else {
58         _content = txt;
59     }
60     }
61     
62     public static String JavaDoc fromClipboard() {
63     System.out.println("fromClipboard: ");
64     initialize();
65     if (_cs != null) {
66         Transferable JavaDoc t = _cs.getContents();
67         try {
68         return (String JavaDoc)t.getTransferData(DataFlavor.stringFlavor);
69         } catch(Throwable JavaDoc ex) {
70         System.out.println(ex);
71         return "";
72         }
73     } else {
74         return _content;
75     }
76     }
77     
78     static private synchronized void initialize() {
79     if (_initialized) return;
80     _initialized = true;
81     try {
82         _cs = (ClipboardService)ServiceManager.lookup("javax.jnlp.ClipboardService");
83     } catch(UnavailableServiceException e) {
84         _cs = null;
85     }
86     }
87 }
88
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