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1   /*
2    *  XNap Commons
3    *
4    *  Copyright (C) 2005  Steffen Pingel
5    *
6    *  This library is free software; you can redistribute it and/or
7    *  modify it under the terms of the GNU Lesser General Public
8    *  License as published by the Free Software Foundation; either
9    *  version 2.1 of the License, or (at your option) any later version.
10   *
11   *  This library is distributed in the hope that it will be useful,
12   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14   *  Lesser General Public License for more details.
15   *
16   *  You should have received a copy of the GNU Lesser General Public
17   *  License along with this library; if not, write to the Free Software
18   *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19   */
20  package org.xnap.commons.gui;
21  
22  import java.awt.Component;
23  import javax.swing.SwingUtilities;
24  import org.xnap.commons.i18n.I18nFactory;
25  import org.xnap.commons.settings.BooleanSetting;
26  import org.xnap.commons.util.UncaughtExceptionListener;
27  import org.xnap.commons.util.UncaughtExceptionManager;
28  
29  // TODO doc
30  public class ErrorHandler implements UncaughtExceptionListener {
31  
32  	private ErrorDialog dialog;
33  	private BooleanSetting showDialogSetting;
34  	private Component parent;
35  	private UncaughtExceptionManager exceptionManager;
36  	private BooleanSetting detailsVisibleSetting;
37  
38      public ErrorHandler(Component parent, 
39      					UncaughtExceptionManager exceptionManager,
40  						BooleanSetting showDialogSetting,
41  						BooleanSetting detailsVisibleSetting) 
42      {
43      	this.parent = parent;
44      	this.exceptionManager = exceptionManager;
45      	this.showDialogSetting = showDialogSetting;
46      	this.detailsVisibleSetting = detailsVisibleSetting;
47  	}
48  
49      public void handle(Throwable e)
50  	{
51  		uncaughtException(Thread.currentThread(), e);
52  	}
53  
54  	public void setParent(Component parent)
55  	{
56  		this.parent = parent;
57  	}
58  	
59  	public void uncaughtException(final Thread t, final Throwable e) 
60  	{
61  		if (showDialogSetting != null && !showDialogSetting.getValue()) {
62  			return;
63  		}
64  		
65  		Runnable runner = new Runnable() 
66  			{
67  				public void run()
68  				{
69  					if (dialog == null || dialog.isBusy()) {
70  						dialog = new ErrorDialog(I18nFactory.getI18n(ErrorDialog.class).tr("An unknown problem has occured!"),
71  												 exceptionManager, true, 
72  												 showDialogSetting, 
73  												 detailsVisibleSetting);
74  						dialog.show(parent);
75  					}
76  					dialog.add(t, e);
77  				}
78  			};
79  		SwingUtilities.invokeLater(runner);
80  	}
81  
82  }