/*
* This file is part of the Echo Web Application Framework (hereinafter "Echo").
* Copyright (C) 2002-2005 NextApp, Inc.
*
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*/
package echo2example.email;
import java.util.StringTokenizer;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import nextapp.echo2.app.Button;
import nextapp.echo2.app.Column;
import nextapp.echo2.app.Extent;
import nextapp.echo2.app.Grid;
import nextapp.echo2.app.Insets;
import nextapp.echo2.app.Label;
import nextapp.echo2.app.Row;
import nextapp.echo2.app.SplitPane;
import nextapp.echo2.app.TextArea;
import nextapp.echo2.app.TextField;
import nextapp.echo2.app.WindowPane;
import nextapp.echo2.app.event.ActionEvent;
import nextapp.echo2.app.event.ActionListener;
import nextapp.echo2.app.event.WindowPaneEvent;
import nextapp.echo2.app.event.WindowPaneListener;
/**
* The message composition window.
*/
public class ComposeWindow extends WindowPane {
private static final Extent DIALOG_OFFSET_X = new Extent(80);
private static final Extent DIALOG_OFFSET_Y = new Extent(26);
/**
* Adds recipient e-mail addresses contained in a comma-delimited string
* to an outgoing e-mail <code>Message</code>.
*
* @param message the <code>Message</code> object to which the addresses
* will be added
* @param recipientType the type of recipient to which the addresses
* should be added (to, cc, or bcc)
* @param recipients a comma-delimited string of recipient addresses
*/
private static void addRecipients(Message message, Message.RecipientType recipientType, String recipients)
throws AddressException, MessagingException {
if (recipients != null && recipients.trim().length() > 0) {
// Tokenize the recipient string based on commas.
StringTokenizer tokenizer = new StringTokenizer(recipients, ",");
while (tokenizer.hasMoreTokens()) {
// Add each recipient.
String recipient = tokenizer.nextToken();
message.addRecipient(recipientType, new InternetAddress(recipient));
}
}
}
private TextField toField;
private TextField ccField;
private TextField bccField;
private TextField subjectField;
private TextArea messageField;
/**
* Creates a new <code>ComposeWindow</code>.
*
* @param replyMessage the message being replied to, or null if composing
* a new message.
*/
public ComposeWindow(Message replyMessage) {
super(Messages.getString("ComposeWindow.Title"), new Extent(600), new Extent(480));
setResizable(false);
setDefaultCloseOperation(WindowPane.DO_NOTHING_ON_CLOSE);
setStyleName("Default");
addWindowPaneListener(new WindowPaneListener() {
public void windowPaneClosing(WindowPaneEvent e) {
processDiscard();
}
});
SplitPane mainPane = new SplitPane(SplitPane.ORIENTATION_VERTICAL, new Extent(32));
add(mainPane);
Row controlPane = new Row();
controlPane.setStyleName("ControlPane");
mainPane.add(controlPane);
Button sendButton = new Button(Messages.getString("ComposeWindow.SendButton"),
Styles.ICON_24_YES);
sendButton.setStyleName("ControlPane.Button");
sendButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (sendMessage()) {
((EmailApp) getApplicationInstance()).getDefaultWindow().getContent().remove(ComposeWindow.this);
}
}
});
controlPane.add(sendButton);
Button cancelButton = new Button(Messages.getString("ComposeWindow.DiscardButton"),
Styles.ICON_24_NO);
cancelButton.setStyleName("ControlPane.Button");
cancelButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
processDiscard();
}
});
controlPane.add(cancelButton);
Column layoutColumn = new Column();
layoutColumn.setCellSpacing(new Extent(10));
layoutColumn.setInsets(new Insets(10));
mainPane.add(layoutColumn);
Grid headerGrid = new Grid();
headerGrid.setInsets(new Insets(0, 2));
layoutColumn.add(headerGrid);
Label label;
label = new Label(Messages.getString("Message.PromptLabel.To"));
headerGrid.add(label);
toField = new TextField();
toField.setStyleName("Default");
toField.setWidth(new Extent(450));
headerGrid.add(toField);
label = new Label(Messages.getString("Message.PromptLabel.Cc"));
headerGrid.add(label);
ccField = new TextField();
ccField.setStyleName("Default");
ccField.setWidth(new Extent(450));
headerGrid.add(ccField);
label = new Label(Messages.getString("Message.PromptLabel.Bcc"));
headerGrid.add(label);
bccField = new TextField();
bccField.setStyleName("Default");
bccField.setWidth(new Extent(450));
headerGrid.add(bccField);
label = new Label(Messages.getString("Message.PromptLabel.Subject"));
headerGrid.add(label);
subjectField = new TextField();
subjectField.setStyleName("Default");
subjectField.setWidth(new Extent(450));
headerGrid.add(subjectField);
messageField = new TextArea();
messageField.setStyleName("Default");
messageField.setWidth(new Extent(520));
messageField.setHeight(new Extent(18, Extent.EM));
layoutColumn.add(messageField);
if (replyMessage == null) {
EmailApp.getActive().setFocusedComponent(toField);
} else {
EmailApp.getActive().setFocusedComponent(messageField);
try {
toField.setText(MessageUtil.clean(replyMessage.getFrom()[0].toString(), -1, -1));
subjectField.setText(MessageUtil.clean(replyMessage.getSubject(), -1, -1));
} catch (MessagingException ex) {
EmailApp.getApp().processFatalException(ex);
}
}
}
/**
* Handles a user request to discard the message being composed.
*/
private void processDiscard() {
if (messageField.getText().trim().length() > 0) {
MessageDialog confirmDialog = new MessageDialog(Messages.getString("ComposeWindow.ConfirmDiscard.Title"),
Messages.getString("ComposeWindow.ConfirmDiscard.Message"), MessageDialog.TYPE_CONFIRM,
MessageDialog.CONTROLS_YES_NO);
confirmDialog.setPositionX(Extent.add(getPositionX(), DIALOG_OFFSET_X));
confirmDialog.setPositionY(Extent.add(getPositionY(), DIALOG_OFFSET_Y));
confirmDialog.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (MessageDialog.COMMAND_OK.equals(e.getActionCommand())) {
getParent().remove(ComposeWindow.this);
}
}
});
getApplicationInstance().getDefaultWindow().getContent().add(confirmDialog);
} else {
getParent().remove(this);
}
}
/**
* Sends the message.
* This message will display an error dialog if the message cannot be
* sent.
*
* @return True if the message was sent.
*/
private boolean sendMessage() {
MimeMessage message = new MimeMessage(((EmailApp) getApplicationInstance()).getMailSession());
try {
// Validate.
String errorMessage = null;
if (toField.getText().length() == 0) {
errorMessage = Messages.getString("ComposeWindow.SendError.NoToField");
} else if (subjectField.getText().length() == 0) {
errorMessage = Messages.getString("ComposeWindow.SendError.NoSubjectField");
} else if (messageField.getText().length() == 0) {
errorMessage = Messages.getString("ComposeWindow.SendError.NoMessageContent");
}
if (errorMessage != null) {
MessageDialog messageDialog = new MessageDialog(Messages.getString("ComposeWindow.SendError.Title"),
errorMessage, MessageDialog.TYPE_ERROR, MessageDialog.CONTROLS_OK);
messageDialog.setPositionX(Extent.add(getPositionX(), DIALOG_OFFSET_X));
messageDialog.setPositionY(Extent.add(getPositionY(), DIALOG_OFFSET_Y));
getApplicationInstance().getDefaultWindow().getContent().add(messageDialog);
return false;
}
// Set sender address.
message.setFrom(new InternetAddress(((EmailApp) getApplicationInstance()).getEmailAddress()));
// Add recipients contained in recipient text fields.
addRecipients(message, Message.RecipientType.TO, toField.getText());
addRecipients(message, Message.RecipientType.CC, ccField.getText());
addRecipients(message, Message.RecipientType.BCC, bccField.getText());
// Set the subject and content of the message.
message.setSubject(subjectField.getText());
message.setText(messageField.getText());
// Attempt to send the message.
if (!EmailApp.FAUX_MODE) {
Transport.send(message);
}
return true;
} catch (AddressException ex) {
// Process an exception pertaining to an invalid recipient e-mail address: Raise an error.
MessageDialog messageDialog = new MessageDialog(Messages.getString("ComposeWindow.SendError.Title"),
Messages.getString("ComposeWindow.SendError.InvalidAddress"), MessageDialog.TYPE_ERROR,
MessageDialog.CONTROLS_OK);
messageDialog.setPositionX(Extent.add(getPositionX(), DIALOG_OFFSET_X));
messageDialog.setPositionY(Extent.add(getPositionY(), DIALOG_OFFSET_Y));
getApplicationInstance().getDefaultWindow().getContent().add(messageDialog);
return false;
} catch (MessagingException ex) {
// Handle a fatal exception.
EmailApp.getApp().processFatalException(ex);
return false;
}
}
}
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