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1
29
30 package echo2example.email;
31
32 import java.io.Serializable  ;
33 import java.util.Date ;
34 import java.util.EventListener ;
35 import java.util.EventObject ;
36
37 import javax.mail.Address ;
38 import javax.mail.Folder ;
39 import javax.mail.Message ;
40 import javax.mail.MessagingException ;
41 import javax.mail.internet.InternetAddress ;
42
43 import nextapp.echo2.app.Component;
44 import nextapp.echo2.app.Extent;
45 import nextapp.echo2.app.Label;
46 import nextapp.echo2.app.Table;
47 import nextapp.echo2.app.event.ActionEvent;
48 import nextapp.echo2.app.event.ActionListener;
49 import nextapp.echo2.app.table.AbstractTableModel;
50 import nextapp.echo2.app.table.TableCellRenderer;
51 import nextapp.echo2.app.table.TableColumnModel;
52
53
56 public class MessageListTable extends Table {
57
58 private static final int COLUMN_FROM = 0;
59 private static final int COLUMN_SUBJECT = 1;
60 private static final int COLUMN_DATE = 2;
61
62
65 public class MessageSelectionEvent extends EventObject {
66
67 private Message message;
68
69
74 public MessageSelectionEvent(Message message) {
75 super(MessageListTable.this);
76 this.message = message;
77 }
78
79
84 public Message getMessage() {
85 return message;
86 }
87 }
88
89
92 public static interface MessageSelectionListener extends EventListener , Serializable {
93
94
99 public void messageSelected(MessageSelectionEvent e);
100 }
101
102
106 private AbstractTableModel messageTableModel = new AbstractTableModel() {
107
108
111 public int getColumnCount() {
112 return 3;
113 }
114
115
118 public int getRowCount() {
119 return displayedMessages == null ? 0 : displayedMessages.length;
120 }
121
122
125 public Object getValueAt(int column, int row) {
126 try {
127 switch (column) {
128 case COLUMN_FROM:
129 Address [] from = displayedMessages[row].getFrom();
131 if (from != null) {
132 InternetAddress fromAddress = ((InternetAddress ) from[0]);
133 String personal = fromAddress.getPersonal();
134 return personal == null ? fromAddress.getAddress() : personal;
135 } else {
136 return Messages.getString("MessageListTable.UnknownSenderText");
137 }
138 case COLUMN_SUBJECT:
139 String subject = displayedMessages[row].getSubject();
141 if (subject != null && subject.length() > 40) {
142 subject = subject.substring(0, 40);
143 }
144 return subject;
145 case COLUMN_DATE:
146 return displayedMessages[row].getSentDate();
147 default:
148 throw new IllegalArgumentException ("Invalid column.");
149 }
150 } catch (MessagingException ex) {
151 return null;
153 }
154 }
155
156
159 public String getColumnName(int column) {
160 switch (column) {
161 case COLUMN_FROM: return Messages.getString("MessageListTable.ColumnHeaderFrom");
162 case COLUMN_SUBJECT: return Messages.getString("MessageListTable.ColumnHeaderSubject");
163 case COLUMN_DATE: return Messages.getString("MessageListTable.ColumnHeaderDate");
164 default: throw new IllegalArgumentException ("Invalid column.");
165 }
166 }
167 };
168
169
172 private TableCellRenderer messageTableCellRenderer = new TableCellRenderer() {
173
174
178 public Component getTableCellRendererComponent(Table table, Object value, int column, int row) {
179 Label label;
180 switch (column) {
181 case COLUMN_DATE:
182 label = new Label(Messages.formatDateTimeMedium((Date ) value));
183 label.setLineWrap(false);
184 break;
185 case COLUMN_SUBJECT:
186 label = new Label(value == null ? (String ) null : MessageUtil.clean(value.toString(), 25, 50));
187 break;
188 case COLUMN_FROM:
189 label = new Label(value == null ? (String ) null : MessageUtil.clean(value.toString(), 30, 65));
190 break;
191 default:
192 throw new IndexOutOfBoundsException ();
193 }
194 if (row % 2 == 0) {
195 label.setStyleName("MessageListTable.EvenRowLabel");
196 } else {
197 label.setStyleName("MessageListTable.OddRowLabel");
198 }
199 return label;
200 }
201 };
202
203 private ActionListener tableActionListener = new ActionListener() {
204
205
208 public void actionPerformed(ActionEvent e) {
209 fireMessageSelection();
210 }
211 };
212
213 private Message [] displayedMessages;
214 private Folder folder;
215 private int totalMessages;
216 private int pageIndex;
217
218
221 public MessageListTable() {
222 super();
223 addActionListener(tableActionListener);
224 setStyleName("MessageListTable.Table");
225 setModel(messageTableModel);
226 setDefaultRenderer(Object .class, messageTableCellRenderer);
227
228 TableColumnModel columnModel = getColumnModel();
229 columnModel.getColumn(0).setWidth(new Extent(35, Extent.PERCENT));
230 columnModel.getColumn(1).setWidth(new Extent(40, Extent.PERCENT));
231 columnModel.getColumn(2).setWidth(new Extent(25, Extent.PERCENT));
232 }
233
234
240 public void addMessageSelectionListener(MessageSelectionListener l) {
241 getEventListenerList().addListener(MessageSelectionListener.class, l);
242 }
243
244
247 private void fireMessageSelection() {
248 Message message;
249 int selectedRow = getSelectionModel().getMinSelectedIndex();
250 if (selectedRow == -1) {
251 message = null;
252 } else {
253 message = displayedMessages[selectedRow];
254 }
255 MessageSelectionEvent e = new MessageSelectionEvent(message);
256 EventListener [] listeners = getEventListenerList().getListeners(MessageSelectionListener.class);
257 for (int i = 0; i < listeners.length; ++i) {
258 ((MessageSelectionListener) listeners[i]).messageSelected(e);
259 }
260 }
261
262
265 private void refresh() {
266 if (folder == null) {
267 displayedMessages = null;
268 messageTableModel.fireTableDataChanged();
269 return;
270 }
271 try {
272 int firstMessage = pageIndex * EmailApp.MESSAGES_PER_PAGE + 1;
273 int lastMessage = firstMessage + EmailApp.MESSAGES_PER_PAGE - 1;
274 if (lastMessage > totalMessages) {
275 lastMessage = totalMessages;
276 }
277
278 displayedMessages = folder.getMessages(firstMessage, lastMessage);
279 messageTableModel.fireTableDataChanged();
280 } catch (MessagingException ex) {
281 ((EmailApp) getApplicationInstance()).processFatalException(ex);
282 }
283 }
284
285
291 public void removeMessageSelectionListener(MessageSelectionListener l) {
292 getEventListenerList().removeListener(MessageSelectionListener.class, l);
293 }
294
295
300 public void setFolder(Folder newValue) {
301 try {
302 if (folder != null) {
303 folder.close(false);
304 folder = null;
305 }
306 folder = newValue;
307 if (folder != null) {
308 folder.open(Folder.READ_ONLY);
309 totalMessages = folder.getMessageCount();
310 }
311
312 } catch (MessagingException ex) {
313 ((EmailApp) getApplicationInstance()).processFatalException(ex);
314 }
315 getSelectionModel().clearSelection();
316 refresh();
317 fireMessageSelection();
318 }
319
320
323 public void setPageIndex(int pageIndex) {
324 this.pageIndex = pageIndex;
325 getSelectionModel().clearSelection();
326 refresh();
327 fireMessageSelection();
328 }
329 } |
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