/*
* This file is part of the Echo Web Application Framework (hereinafter "Echo").
* Copyright (C) 2002-2009 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.chatclient;
import nextapp.echo2.app.Alignment;
import nextapp.echo2.app.Button;
import nextapp.echo2.app.ContentPane;
import nextapp.echo2.app.Extent;
import nextapp.echo2.app.Label;
import nextapp.echo2.app.Row;
import nextapp.echo2.app.SplitPane;
import nextapp.echo2.app.TextArea;
import nextapp.echo2.app.event.ActionEvent;
import nextapp.echo2.app.event.ActionListener;
/**
* A screen which displays the current state of the chat room and allow the
* user to submit chat input.
*/
public class ChatScreen extends ContentPane {
private TextArea postField;
private MessagePane messagePane;
/**
* Creates a new <code>ChatScreen</code>.
*/
public ChatScreen() {
super();
SplitPane outerSplitPane = new SplitPane(SplitPane.ORIENTATION_VERTICAL_TOP_BOTTOM, new Extent(32));
outerSplitPane.setStyleName("ChatScreen.SplitPane");
add(outerSplitPane);
Row controlsRow = new Row();
controlsRow.setStyleName("ControlPane");
outerSplitPane.add(controlsRow);
Button logoutButton = new Button(Messages.getString("Generic.Exit"), Styles.ICON_24_EXIT);
logoutButton.setStyleName("ControlPane.Button");
logoutButton.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e) {
ChatApp.getApp().disconnect();
}
});
controlsRow.add(logoutButton);
SplitPane mainSplitPane = new SplitPane(SplitPane.ORIENTATION_VERTICAL_BOTTOM_TOP, new Extent(90));
mainSplitPane.setStyleName("ChatScreen.SplitPane");
outerSplitPane.add(mainSplitPane);
SplitPane inputAreaSplitPane = new SplitPane(SplitPane.ORIENTATION_HORIZONTAL_LEADING_TRAILING, new Extent(150));
mainSplitPane.add(inputAreaSplitPane);
Label currentUserLabel = new Label(ChatApp.getApp().getUserName() + ":");
currentUserLabel.setStyleName("ChatScreen.CurrentUserLabel");
inputAreaSplitPane.add(currentUserLabel);
SplitPane postSplitPane = new SplitPane(SplitPane.ORIENTATION_HORIZONTAL_TRAILING_LEADING, new Extent(100));
inputAreaSplitPane.add(postSplitPane);
Button submitPostButton = new Button(Messages.getString("ChatScreen.SubmitPostButton"), Styles.ICON_24_RIGHT_ARROW);
submitPostButton.setStyleName("ChatScreen.SubmitPostButton");
submitPostButton.setTextPosition(new Alignment(Alignment.LEFT, Alignment.DEFAULT));
submitPostButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
postMessage();
}
});
postSplitPane.add(submitPostButton);
postField = new TextArea();
postField.setStyleName("ChatScreen.PostField");
postField.setWidth(new Extent(97, Extent.PERCENT));
postField.setHeight(new Extent(70, Extent.PX));
postField.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
postMessage();
}
});
postSplitPane.add(postField);
messagePane = new MessagePane();
mainSplitPane.add(messagePane);
ChatApp app = ChatApp.getApp();
app.setFocusedComponent(postField);
}
/**
* Updates the list of messages.
*/
public void updateMessageList() {
messagePane.update();
}
/**
* Posts the text currently entered as a new message.
*/
private void postMessage() {
ChatApp app = ChatApp.getApp();
if (postField.getText().trim().length() != 0) {
app.postMessage(postField.getText());
}
postField.setText("");
app.setFocusedComponent(postField);
messagePane.update();
}
}