/*
* 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.Button;
import nextapp.echo2.app.Column;
import nextapp.echo2.app.ContentPane;
import nextapp.echo2.app.Extent;
import nextapp.echo2.app.Grid;
import nextapp.echo2.app.Label;
import nextapp.echo2.app.Row;
import nextapp.echo2.app.SplitPane;
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.layout.GridLayoutData;
/**
* Login screen <code>ContentPane</code>.
*/
public class LoginScreen extends ContentPane {
private static final Extent PX_300 = new Extent(300, Extent.PX);
private TextField nameField;
/**
* Creates a new <code>LoginScreen</code>.
*/
public LoginScreen() {
super();
setStyleName("LoginScreen.ContentPane");
Label label;
Column column = new Column();
column.setStyleName("LoginScreen.Column");
add(column);
label = new Label(Styles.NEXTAPP_LOG_IMAGE);
column.add(label);
label = new Label(Styles.ECHO2_IMAGE);
column.add(label);
label = new Label(Styles.CHAT_EXAMPLE_IMAGE);
column.add(label);
WindowPane loginWindow = new WindowPane();
loginWindow.setTitle(Messages.getString("LoginScreen.LoginWindowTitle"));
loginWindow.setStyleName("LoginScreen.LoginWindow");
loginWindow.setClosable(false);
add(loginWindow);
SplitPane splitPane = new SplitPane(SplitPane.ORIENTATION_VERTICAL_BOTTOM_TOP, new Extent(32));
loginWindow.add(splitPane);
Row controlRow = new Row();
controlRow.setStyleName("ControlPane");
splitPane.add(controlRow);
Button button = new Button(Messages.getString("LoginScreen.Continue"), Styles.ICON_24_YES);
button.setStyleName("ControlPane.Button");
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
processLogin();
}
});
controlRow.add(button);
Grid layoutGrid = new Grid();
layoutGrid.setStyleName("LoginScreen.LayoutGrid");
splitPane.add(layoutGrid);
Column warningColumn = new Column();
GridLayoutData gridLayoutData = new GridLayoutData();
gridLayoutData.setColumnSpan(2);
warningColumn.setLayoutData(gridLayoutData);
layoutGrid.add(warningColumn);
label = new Label(Messages.getString("LoginScreen.WarningTitle"));
label.setStyleName("LoginScreen.WarningTitle");
warningColumn.add(label);
label = new Label(Messages.getString("LoginScreen.WarningMessage"));
label.setStyleName("LoginScreen.WarningMessage");
warningColumn.add(label);
label = new Label(Messages.getString("LoginScreen.PromptUserName"));
label.setStyleName("LoginScreen.Prompt");
layoutGrid.add(label);
nameField = new TextField();
nameField.setWidth(PX_300);
nameField.setStyleName("Default");
nameField.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
processLogin();
}
});
layoutGrid.add(nameField);
ChatApp.getActive().setFocusedComponent(nameField);
}
/**
* Processes a user log-in request.
*/
private void processLogin() {
if (!ChatApp.getApp().connect(nameField.getText())) {
MessageDialog messageDialog = new MessageDialog(Messages.getString("LoginScreen.InvalidLogin.Title"),
Messages.getString("LoginScreen.InvalidLogin.Message"), MessageDialog.TYPE_ERROR, MessageDialog.CONTROLS_OK);
getApplicationInstance().getDefaultWindow().getContent().add(messageDialog);
}
}
}