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Java > Open Source Codes > salsa > html > WebBrowser


1 /*
2 ** Salsa - Swing Add-On Suite
3 ** Copyright (c) 2001, 2002 by Gerald Bauer
4 **
5 ** This program is free software.
6 **
7 ** You may redistribute it and/or modify it under the terms of the GNU
8 ** General Public License as published by the Free Software Foundation.
9 ** Version 2 of the license should be included with this distribution in
10 ** the file LICENSE, as well as License.html. If the license is not
11 ** included with this distribution, you may find a copy at the FSF web
12 ** site at 'www.gnu.org' or 'www.fsf.org', or you may write to the
13 ** Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139 USA.
14 **
15 ** THIS SOFTWARE IS PROVIDED AS-IS WITHOUT WARRANTY OF ANY KIND,
16 ** NOT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY. THE AUTHOR
17 ** OF THIS SOFTWARE, ASSUMES _NO_ RESPONSIBILITY FOR ANY
18 ** CONSEQUENCE RESULTING FROM THE USE, MODIFICATION, OR
19 ** REDISTRIBUTION OF THIS SOFTWARE.
20 **
21 */
22
23 package salsa.html;
24
25 import java.io.*;
26 import java.net.*;
27 import javax.swing.*;
28 import javax.swing.event.*;
29 import javax.swing.text.html.*;
30 import houston.*;
31
32 public class WebBrowser
33 {
34    static Logger T = Logger.getLogger( WebBrowser.class );
35
36    private JEditorPane _browser;
37
38    public WebBrowser()
39    {
40       _browser = new JEditorPane();
41       _browser.setEditable( false );
42       _browser.setContentType( "text/html" );
43
44       _browser.addHyperlinkListener(
45          new HyperlinkListener()
46          {
47             public void hyperlinkUpdate( HyperlinkEvent ev )
48             {
49                if( ev.getEventType() == HyperlinkEvent.EventType.ACTIVATED )
50                {
51                   if( ev instanceof HTMLFrameHyperlinkEvent )
52                   {
53                      JEditorPane p = ( JEditorPane ) ev.getSource();
54                      HTMLDocument doc = ( HTMLDocument ) p.getDocument();
55                      doc.processHTMLFrameHyperlinkEvent( ( HTMLFrameHyperlinkEvent ) ev );
56                   }
57                   else
58                      showDocument( ev.getURL() );
59                }
60             }
61          } );
62    }
63
64    public JComponent getComponent()
65    {
66       return _browser;
67    }
68
69    public void showDocument( URL url )
70    {
71       try
72       {
73          _browser.setPage( url );
74       }
75       catch( IOException ioex )
76       {
77          Status.error( "*** failed to load URL: " + ioex.toString() );
78       }
79    }
80
81    public void showHtmlText( String JavaDoc html )
82    {
83       _browser.setText( html );
84    }
85 }
86
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