summaryrefslogtreecommitdiffstats
path: root/scripting/examples/java/Newsgroup/PostNewsgroup.java
blob: 6c6ecdf3729ddf74b1cbc23ec79fee57eeaca349 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

package org.libreoffice.example.java_scripts;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
import java.util.Vector;
import com.sun.star.script.framework.runtime.XScriptContext;


public class PostNewsgroup extends JFrame {

    // Post to newsgroup objects
    private NewsGroup[] subscribedNewsgroups = null;
    private XScriptContext xscriptcontext = null;

    private final int FRAMEX = 300;
    private final int FRAMEY = 300;
    private final int TEXTBOXWIDTH = 300;
    private final int TEXTBOXHEIGHT = 24;
    private final int TEXTAREAHEIGHT = 70;
    private final int BUTTONWIDTH = 80;
    private final int BUTTONHEIGHT = 30;

    private PostNewsgroup window = null;
    private JComboBox newsgroupComboBox = null;
    private JTextField hostTextField = null;
    private JTextField replyTextField = null;
    private JTextField subjectTextField = null;
    private JTextArea commentTextArea = null;
    private JRadioButton officeHtmlButton = null;
    private JRadioButton officeButton = null;
    private JRadioButton htmlButton = null;
    private JButton postButton = null;
    private JButton cancelButton = null;

    // JFrame for launch progress dialog
    private StatusWindow statusWindow = null;
    private String statusLine = "";

    // Tool tip text
    private final String newsgroupText = "Newsgroup name";
    private final String hostText = "Newsgroup host/server name";
    private final String replyText = "Email address to reply to";
    private final String subjectText = "Subject title for the mail";
    private final String commentText = "Additional comment on mail";
    private final String officeHtmlText =
        "Post as both Office and HTML attachments";
    private final String officeText = "Post as Office attachment only";
    private final String htmlText = "Post as HTML attachment only";
    private final String postText = "Post to newsgroup";
    private final String cancelText = "Cancel post to newsgroup";


    public void post(XScriptContext xsc) {
        xscriptcontext = xsc;
        window = this;

        // create mailcap and mimetypes files (fix for classloader problem)
        MimeConfiguration.createFiles(xscriptcontext);

        this.setTitle("Post Document To Newsgroup");
        this.setLocation(FRAMEX, FRAMEY);

        this.addFocusListener(new FocusAdapter() {
            public void focusGained(FocusEvent event) {
                System.out.println("Focus gained");
                window.update(window.getGraphics());
            }

            public void focusLost(FocusEvent event) {
                System.out.println("Focus lost");
            }
        });

        Container container = getContentPane();
        container.setLayout(new GridBagLayout());
        GridBagConstraints constraints = new GridBagConstraints();
        constraints.fill = GridBagConstraints.BOTH;

        JPanel labelPanel = constructLabelPanel();
        JPanel textPanel = constructTextPanel();
        JPanel optionPanel = constructOptionPanel();
        JPanel buttonPanel = constructButtonPanel();

        constraints.gridx = 0;
        constraints.gridy = 0;
        constraints.gridwidth = 1;
        constraints.gridheight = 3;
        constraints.insets = new Insets(15, 15, 5, 5);
        container.add(labelPanel, constraints);

        constraints.gridx = 1;
        constraints.gridy = 0;
        constraints.gridwidth = 4;
        constraints.gridheight = 3;
        constraints.insets = new Insets(15, 5, 5, 15);
        container.add(textPanel, constraints);

        constraints.gridx = 0;
        constraints.gridy = 3;
        constraints.gridwidth = 5;
        constraints.gridheight = 1;
        constraints.insets = new Insets(5, 15, 5, 15);
        container.add(optionPanel, constraints);

        constraints.gridx = 0;
        constraints.gridy = 4;
        constraints.gridwidth = 5;
        constraints.gridheight = 1;
        constraints.insets = new Insets(5, 5, 5, 5);
        container.add(buttonPanel, constraints);

        this.pack();
        this.setResizable(false);
        this.setVisible(true);
    }


    private JPanel constructLabelPanel() {
        JLabel newsgroupLabel = new JLabel("Newsgroup:");
        JLabel hostLabel = new JLabel("Host:");
        JLabel replyLabel = new JLabel("Reply:");
        JLabel subjectLabel = new JLabel("Subject:");
        JLabel commentLabel = new JLabel("Comment:");

        newsgroupLabel.setToolTipText(newsgroupText);
        hostLabel.setToolTipText(hostText);
        replyLabel.setToolTipText(replyText);
        subjectLabel.setToolTipText(subjectText);
        commentLabel.setToolTipText(commentText);

        JPanel newsgroupPanel = new JPanel();
        newsgroupPanel.setLayout(new BorderLayout());
        newsgroupPanel.add(newsgroupLabel, "West");
        JPanel hostPanel = new JPanel();
        hostPanel.setLayout(new BorderLayout());
        hostPanel.add(hostLabel, "West");
        JPanel replyPanel = new JPanel();
        replyPanel.setLayout(new BorderLayout());
        replyPanel.add(replyLabel, "West");
        JPanel subjectPanel = new JPanel();
        subjectPanel.setLayout(new BorderLayout());
        subjectPanel.add(subjectLabel, "West");
        JPanel commentPanel = new JPanel();
        commentPanel.setLayout(new BorderLayout());
        commentPanel.add(commentLabel, "West");
        JPanel emptyPanel = new JPanel();

        final int labelWidth = 80;
        newsgroupPanel.setPreferredSize(new Dimension(labelWidth, TEXTBOXHEIGHT));
        hostPanel.setPreferredSize(new Dimension(labelWidth, TEXTBOXHEIGHT));
        replyPanel.setPreferredSize(new Dimension(labelWidth, TEXTBOXHEIGHT));
        subjectPanel.setPreferredSize(new Dimension(labelWidth, TEXTBOXHEIGHT));
        commentPanel.setPreferredSize(new Dimension(labelWidth, TEXTBOXHEIGHT));

        JPanel panel = new JPanel();
        panel.setLayout(new GridBagLayout());
        GridBagConstraints constraints = new GridBagConstraints();
        constraints.fill = GridBagConstraints.BOTH;
        constraints.insets = new Insets(5, 5, 5, 5);

        constraints.gridx = 0;
        constraints.gridy = 0;
        constraints.gridwidth = 1;
        constraints.gridheight = 1;
        constraints.weightx = constraints.weighty = 0.0;
        panel.add(newsgroupPanel, constraints);

        constraints.gridx = 0;
        constraints.gridy = 1;
        constraints.gridwidth = 1;
        constraints.gridheight = 1;
        panel.add(hostPanel, constraints);

        constraints.gridx = 0;
        constraints.gridy = 2;
        constraints.gridwidth = 1;
        constraints.gridheight = 1;
        panel.add(replyPanel, constraints);

        constraints.gridx = 0;
        constraints.gridy = 3;
        constraints.gridwidth = 1;
        constraints.gridheight = 1;
        panel.add(subjectPanel, constraints);

        constraints.gridx = 0;
        constraints.gridy = 4;
        constraints.gridwidth = 1;
        constraints.gridheight = 1;
        panel.add(commentPanel, constraints);

        constraints.gridx = 0;
        constraints.gridy = 5;
        constraints.gridwidth = 1;
        constraints.gridheight = 1;
        constraints.weightx = constraints.weighty = 1.0;
        panel.add(emptyPanel, constraints);

        return panel;
    }


    private JPanel constructTextPanel() {
        hostTextField = new JTextField();
        hostTextField.setPreferredSize(new Dimension(TEXTBOXWIDTH, TEXTBOXHEIGHT));
        hostTextField.setToolTipText(hostText);
        hostTextField.setBorder(new EtchedBorder());

        //optionPanel.setBorder( new TitledBorder( new EtchedBorder(), "Document Format" ) );
        newsgroupComboBox = getNewsgroupCombo();

        replyTextField = new JTextField();
        replyTextField.setPreferredSize(new Dimension(TEXTBOXWIDTH, TEXTBOXHEIGHT));
        replyTextField.setToolTipText(replyText);
        replyTextField.setBorder(new EtchedBorder());

        subjectTextField = new JTextField();
        subjectTextField.setPreferredSize(new Dimension(TEXTBOXWIDTH, TEXTBOXHEIGHT));
        subjectTextField.setToolTipText(subjectText);
        subjectTextField.setBorder(new EtchedBorder());

        commentTextArea = new JTextArea();
        commentTextArea.setPreferredSize(new Dimension(TEXTBOXWIDTH, TEXTAREAHEIGHT));
        commentTextArea.setToolTipText(commentText);
        commentTextArea.setBorder(new EtchedBorder());

        JPanel panel = new JPanel();
        panel.setLayout(new GridBagLayout());
        GridBagConstraints constraints = new GridBagConstraints();
        constraints.fill = GridBagConstraints.BOTH;
        constraints.insets = new Insets(5, 5, 5, 5);

        constraints.gridx = 0;
        constraints.gridy = 0;
        constraints.gridwidth = 1;
        constraints.gridheight = 1;
        panel.add(newsgroupComboBox, constraints);

        constraints.gridx = 0;
        constraints.gridy = 1;
        constraints.gridwidth = 1;
        constraints.gridheight = 1;
        panel.add(hostTextField, constraints);

        constraints.gridx = 0;
        constraints.gridy = 2;
        constraints.gridwidth = 1;
        constraints.gridheight = 1;
        panel.add(replyTextField, constraints);

        constraints.gridx = 0;
        constraints.gridy = 3;
        constraints.gridwidth = 1;
        constraints.gridheight = 1;
        panel.add(subjectTextField, constraints);

        constraints.gridx = 0;
        constraints.gridy = 4;
        constraints.gridwidth = 1;
        constraints.gridheight = 2;
        panel.add(commentTextArea, constraints);

        return panel;
    }


    private JComboBox getNewsgroupCombo() {
        newsgroupComboBox = new JComboBox();
        //newsgroupComboBox.setBorder( new EtchedBorder() );

        newsgroupComboBox.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                // when newsgroup is selected
                if (subscribedNewsgroups != null) {
                    int position = newsgroupComboBox.getSelectedIndex();

                    if (position != -1) {
                        hostTextField.setText(subscribedNewsgroups[ position ].getHostName());
                        newsgroupComboBox.setToolTipText("Newsgroup name: " +
                                                         subscribedNewsgroups[ position ].getNewsgroupName() + "  (Host name: " +
                                                         subscribedNewsgroups[ position ].getHostName() + ")");
                    }
                }
            }
        });

        NewsGroup groupToSend = null;
        SubscribedNewsgroups newsgroups = new SubscribedNewsgroups();
        subscribedNewsgroups = newsgroups.getNewsGroups();

        // Test for no .mozilla or no subscribed newsgroups
        // subscribedNewsgroups = null;

        if (subscribedNewsgroups == null) {
            JOptionPane.showMessageDialog(window,
                                          "No subscribed newsgroups found in mozilla/netscape profile \nPlease enter newsgroup and host name",
                                          "Newsgroups Information", JOptionPane.INFORMATION_MESSAGE);
        } else {
            // Copy all newsgroups into a vector for comparison
            // Alter entries (to include host name) if duplication is found
            ArrayList vector = new ArrayList(subscribedNewsgroups.length);

            for (int i = 0; i < subscribedNewsgroups.length; i++) {
                vector.add(subscribedNewsgroups[i].getNewsgroupName());
            }

            // Compare and alter
            for (int i = 0; i < subscribedNewsgroups.length; i++) {
                // check if combo box already has a newsgroup with same name
                // then add host name to differentiate
                for (int j = 0; j < subscribedNewsgroups.length; j++) {
                    if (j != i
                        && subscribedNewsgroups[j].getNewsgroupName().equalsIgnoreCase(
                            subscribedNewsgroups[i].getNewsgroupName())) {
                        vector.set(j, subscribedNewsgroups[j].getNewsgroupName() + "  (" +
                                   subscribedNewsgroups[j].getHostName() + ")");
                        vector.set(i, subscribedNewsgroups[i].getNewsgroupName() + "  (" +
                                   subscribedNewsgroups[i].getHostName() + ")");
                    }
                }
            }

            // Copy converted newsgroups from vector to combo box
            for (int i = 0; i < subscribedNewsgroups.length; i++) {
                newsgroupComboBox.addItem(vector.elementAt(i));
            }
        }// else

        newsgroupComboBox.setPreferredSize(new Dimension(TEXTBOXWIDTH, TEXTBOXHEIGHT));
        newsgroupComboBox.setEditable(true);

        return newsgroupComboBox;
    }



    private JPanel constructOptionPanel() {
        officeHtmlButton = new JRadioButton("Office and HTML", true);
        officeHtmlButton.setToolTipText(officeHtmlText);

        officeButton = new JRadioButton("Office");
        officeButton.setToolTipText(officeText);

        htmlButton = new JRadioButton("HTML");
        htmlButton.setToolTipText(htmlText);

        JRadioButton[] rbuttons = { officeHtmlButton, officeButton, htmlButton };
        ButtonGroup radioButtonGroup = new ButtonGroup();

        for (int i = 0; i < rbuttons.length; i++) {
            radioButtonGroup.add(rbuttons[i]);
        }

        JPanel optionPanel = new JPanel();
        optionPanel.setBorder(new TitledBorder(new EtchedBorder(), "Document Format"));
        optionPanel.setLayout(new GridBagLayout());
        GridBagConstraints constraints = new GridBagConstraints();
        constraints.fill = GridBagConstraints.BOTH;

        constraints.gridx = 0;
        constraints.gridy = 0;
        constraints.gridwidth = 1;
        constraints.gridheight = 1;
        constraints.insets = new Insets(5, 5, 5, 30);
        optionPanel.add(officeHtmlButton, constraints);

        constraints.gridx = 1;
        constraints.gridy = 0;
        constraints.gridwidth = 1;
        constraints.gridheight = 1;
        constraints.insets = new Insets(5, 20, 5, 30);
        optionPanel.add(officeButton, constraints);

        constraints.gridx = 2;
        constraints.gridy = 0;
        constraints.gridwidth = 1;
        constraints.gridheight = 1;
        constraints.insets = new Insets(5, 20, 5, 5);
        optionPanel.add(htmlButton, constraints);

        return optionPanel;
    }



    public boolean sendingActions() {
        // posting actions
        // Validate the data
        if (isValidData()) {
            // Create status window
            StatusWindow statusWindow = new StatusWindow(window,  "Posting to Newsgroup",
                    FRAMEX, FRAMEY);

            statusWindow.setVisible(true);
            statusLine = "Ready to send...";
            statusWindow.setStatus(0, statusLine);

            // Get the boolean values for HTML/Office document
            // params: ( XScriptContext, StatusWindow, html document, office document )

            boolean html = false;
            boolean office = false;

            if (officeHtmlButton.isSelected()) {
                html = true;
                office = true;
            }

            if (officeButton.isSelected()) {
                office = true;
                html = false;
            }

            if (htmlButton.isSelected()) {
                html = true;
                office = false;
            }

            OfficeAttachment officeAttach = new OfficeAttachment(xscriptcontext,
                    statusWindow, html, office);

            statusLine = "Getting user input";
            statusWindow.setStatus(2, statusLine);
            // Get replyto, subject, comment from textboxes
            String replyto = replyTextField.getText();
            String subject = subjectTextField.getText();
            String comment = commentTextArea.getText();

            // Get newsgroup from combo box (corresponding position)
            String host = "";
            String group = "";
            int position = newsgroupComboBox.getSelectedIndex();

            if (subscribedNewsgroups == null || position == -1) {
                host = hostTextField.getText();
                group = newsgroupComboBox.getSelectedItem().toString();
            } else {
                host = subscribedNewsgroups[ position ].getHostName();
                group = subscribedNewsgroups[ position ].getNewsgroupName();
            }

            statusLine = "Creating sender object";
            statusWindow.setStatus(3, statusLine);
            Sender sender = new Sender(statusWindow, officeAttach, replyto, subject,
                                       comment, host, group);

            if (!sender.sendMail()) {
                statusWindow.enableCancelButton(true);
                officeAttach.cleanUpOnError();
                return false;
            }

            statusLine = "Send is complete";
            statusWindow.setStatus(14, statusLine);
        } else {
            return false;
        }

        return true;
    }


    private JPanel constructButtonPanel() {
        Action postAction = new AbstractAction() {
            public void actionPerformed(ActionEvent event) {
                // posting actions
                sendingActions();
            }// actionPerformed
        };

        Action cancelAction = new AbstractAction() {
            public void actionPerformed(ActionEvent event) {
                // cancelling actions
                window.dispose();
            }
        };

        postButton = new JButton();
        postButton.setAction(postAction);
        postButton.setToolTipText(postText);
        postButton.setText("Post");
        postButton.setPreferredSize(new Dimension(BUTTONWIDTH + 20, BUTTONHEIGHT));

        cancelButton = new JButton();
        cancelButton.setAction(cancelAction);
        cancelButton.setToolTipText(cancelText);
        cancelButton.setText("Cancel");
        cancelButton.setPreferredSize(new Dimension(BUTTONWIDTH + 20, BUTTONHEIGHT));

        JSeparator sep = new JSeparator(SwingConstants.HORIZONTAL);

        JPanel buttonPanel = new JPanel();
        buttonPanel.setLayout(new GridBagLayout());
        GridBagConstraints constraints = new GridBagConstraints();
        constraints.fill = GridBagConstraints.BOTH;
        constraints.insets = new Insets(5, 5, 5, 5);

        JPanel emptyPanel1 = new JPanel();
        emptyPanel1.setPreferredSize(new Dimension(BUTTONWIDTH, BUTTONHEIGHT));

        JPanel emptyPanel2 = new JPanel();
        emptyPanel2.setPreferredSize(new Dimension(BUTTONWIDTH, BUTTONHEIGHT));

        constraints.gridx = 0;
        constraints.gridy = 0;
        constraints.gridwidth = 4;
        constraints.gridheight = 1;
        buttonPanel.add(sep, constraints);

        constraints.gridx = 0;
        constraints.gridy = 1;
        constraints.gridwidth = 1;
        constraints.gridheight = 1;
        buttonPanel.add(emptyPanel1, constraints);

        constraints.gridx = 1;
        constraints.gridy = 1;
        constraints.gridwidth = 1;
        constraints.gridheight = 1;
        buttonPanel.add(emptyPanel2, constraints);

        constraints.gridx = 2;
        constraints.gridy = 1;
        constraints.gridwidth = 1;
        constraints.gridheight = 1;
        buttonPanel.add(postButton, constraints);

        constraints.gridx = 3;
        constraints.gridy = 1;
        constraints.gridwidth = 1;
        constraints.gridheight = 1;
        constraints.insets = new Insets(5, 5, 5, 0);
        buttonPanel.add(cancelButton, constraints);

        return buttonPanel;
    }


    public void enableButtons(boolean enable) {
        if (enable) {
            postButton.setEnabled(true);
            cancelButton.setEnabled(true);
        } else {
            postButton.setEnabled(false);
            cancelButton.setEnabled(false);
        }
    }


    private boolean isValidData() {
        // newsgroupComboBox must not be blank (format? dots and whitespace)
        String newsgroupString = "";
        int position = newsgroupComboBox.getSelectedIndex();

        if (subscribedNewsgroups == null || position == -1) {
            newsgroupString = newsgroupComboBox.getSelectedItem().toString();
        } else {
            newsgroupString = subscribedNewsgroups[ position ].getNewsgroupName();
        }

        if (newsgroupString.length() == 0) {
            newsgroupComboBox.requestFocus();
            JOptionPane.showMessageDialog(window, "Please enter a newsgroup name",
                                          "Input Error", JOptionPane.ERROR_MESSAGE);
            return false;
        }


        // hostTextField must not be blank (format?)
        String  hostString = hostTextField.getText();

        if (hostString.length() == 0) {
            hostTextField.requestFocus();
            JOptionPane.showMessageDialog(window, "Please enter a hostname", "Input Error",
                                          JOptionPane.ERROR_MESSAGE);
            return false;
        }


        // replyTextField must have <string>@<string>.<string>
        // (string at least 2 chars long)
        // consider <s>.<s>@<s>.<s>.<s> format? (array of dot positions?)
        String replyString = replyTextField.getText();
        int atPos = replyString.indexOf("@");
        int dotPos = replyString.lastIndexOf(".");
        int length = replyString.length();

        if (length == 0 || atPos == -1 || dotPos == -1 || atPos < 2 || dotPos < atPos
            || dotPos + 2 == length || atPos + 2 == dotPos
            || atPos != replyString.lastIndexOf("@") || replyString.indexOf(" ") != -1) {
            replyTextField.requestFocus();
            JOptionPane.showMessageDialog(window,
                                          "Please enter a valid reply to email address", "Input Error",
                                          JOptionPane.ERROR_MESSAGE);
            return false;
        }


        // subjectTextField must not be blank?
        String subjectString = subjectTextField.getText();

        if (subjectString.length() == 0) {
            subjectTextField.requestFocus();
            JOptionPane.showMessageDialog(window, "Please enter subject title",
                                          "Input Error", JOptionPane.ERROR_MESSAGE);
            return false;
        }

        // details are valid
        return true;
    }

}