loginpanel.java

一个类似QQ的在线通讯聊天软件原码,适合初学者参考学习。

package openicq.gui;

import java.awt.*;
import java.awt.event.*;
import java.util.Observable;
import java.util.Observer;

import javax.swing.*;
import javax.swing.border.Border;
import javax.swing.border.TitledBorder;

import openicq.Start;
import openicq.data.Default;
import openicq.data.Resource;
import openicq.management.Oscar;
import openicq.management.Settings;
import openicq.net.*;

import org.javalib.dynamic.DynLoader;
import org.javalib.dynamic.localize.Localization;
import org.javalib.gui.SpringToolkit;
import org.javalib.gui.WholeNumberField;
import org.javalib.gui.image.ImageRotationPanel;
import org.javalib.io.CryptFile;
import org.javalib.io.FileSystemView;
import org.javalib.util.MessageBuffer;
import org.javalib.util.TitledList;

import JOscarLib.Core.OscarConnection;
import JOscarLib.Management.Contact;
import JOscarLib.Management.ContactList;
import JOscarLib.Setting.Enum.StatusModeEnum;
import JOscarLib.Tool.OscarInterface;

/**
 * The <code>LoginPanel</code> class is the basic panel for the login
 * procedure.
 * @author Hansgeorg Schwibbe
 * @copyright 2004
 */
public class LoginPanel extends JPanel
{
  private LoginFrame loginFrame;

  private Object[] fileData;

  protected JPanel jPanelAccount = new JPanel();

  protected JPanel jPanelServer = new JPanel();

  protected JPanel jPanelButton = new JPanel();

  protected JLabel jLabelUserID = new JLabel();

  protected JLabel jLabelPassword = new JLabel();

  protected JLabel jLabelHost = new JLabel();

  protected JLabel jLabelPort = new JLabel();

  protected TitledBorder accountPanelBorder = new TitledBorder("");

  protected TitledBorder serverPanelBorder = new TitledBorder("");

  protected JTextField jTextFieldHost = new JTextField();

  protected JComboBox jComboBoxUserID = new JComboBox();

  protected WholeNumberField wholeNumberFieldPort = new WholeNumberField();

  protected JPasswordField jPasswordField = new JPasswordField();

  protected JCheckBox jCheckBoxAutoSave = new JCheckBox();

  protected JCheckBox jCheckBoxAutoLogin = new JCheckBox();

  protected JButton jButtonConnect = new JButton();

  protected JButton jButtonCancel = new JButton();

  protected ImageRotationPanel imageRotationPanel;

  private MessageBuffer errorMessageSave;

  /**
   * Initializes a new instance of the class <code>LoginPanel</code>.
   * @param parent the parent frame
   */
  public LoginPanel(JFrame parent)
  {
    loginFrame = (LoginFrame) parent;
    // AccountPanel
    Object[] dirnames = FileSystemView.listDirNames(Default.FOLDER_NAME_HOME);
    for (int index = 0; index < dirnames.length; index++)
    {
      jComboBoxUserID.addItem(dirnames[index]);
    }
    int width = 135;
    int height = jComboBoxUserID.getPreferredSize().height;
    jComboBoxUserID.setEditable(true);
    jComboBoxUserID.setPreferredSize(new Dimension(width, height));
    jPasswordField.setPreferredSize(new Dimension(width, height));
    jPasswordField.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        action_connectToServer();
      }
    });
    jCheckBoxAutoSave.addActionListener(new java.awt.event.ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        action_selectCheckBoxAutoSave();
      }
    });
    jPanelAccount.setBorder(accountPanelBorder);
    jPanelAccount.setLayout(new SpringLayout());
    jPanelAccount.add(jLabelUserID);
    jPanelAccount.add(jComboBoxUserID);
    jPanelAccount.add(jLabelPassword);
    jPanelAccount.add(jPasswordField);
    jPanelAccount.add(jCheckBoxAutoSave);
    SpringToolkit.makeCompactGrid(jPanelAccount, 5, 1, 5, 0, 5, 5);
    // ServerPanel
    jPanelServer.setBorder(serverPanelBorder);
    jTextFieldHost.setBackground(this.getBackground());
    jTextFieldHost.setPreferredSize(new Dimension(width, height));
    jTextFieldHost.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        action_connectToServer();
      }
    });
    wholeNumberFieldPort.setBackground(this.getBackground());
    wholeNumberFieldPort.setPreferredSize(new Dimension(width, height));
    wholeNumberFieldPort.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        action_connectToServer();
      }
    });
    jCheckBoxAutoLogin.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        action_selectCheckBoxAutoLogin();
      }
    });
    jPanelServer.setBorder(serverPanelBorder);
    jPanelServer.setLayout(new SpringLayout());
    jPanelServer.add(jLabelHost);
    jPanelServer.add(jTextFieldHost);
    jPanelServer.add(jLabelPort);
    jPanelServer.add(wholeNumberFieldPort);
    jPanelServer.add(jCheckBoxAutoLogin);
    SpringToolkit.makeCompactGrid(jPanelServer, 5, 1, 5, 0, 5, 5);
    // ButtonPanel
    imageRotationPanel = new ImageRotationPanel(Resource.ICON_SOURCE_LOGIN, 1,
                                                250);
    imageRotationPanel.setBackground(this.getBackground());
    jButtonConnect.setFocusable(false);
    jButtonConnect.setPreferredSize(new Dimension(135, 27));
    jButtonConnect.setBorder(BorderFactory.createRaisedBevelBorder());
    jButtonConnect.addActionListener(new java.awt.event.ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        action_connectToServer();
      }
    });
    jButtonCancel.setFocusable(false);
    jButtonCancel.setPreferredSize(new Dimension(135, 27));
    jButtonCancel.setBorder(BorderFactory.createRaisedBevelBorder());
    jButtonCancel.addActionListener(new java.awt.event.ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        action_cancelConnection();
      }
    });
    jPanelButton.setLayout(new FlowLayout(FlowLayout.LEFT));
    jPanelButton.add(imageRotationPanel);
    jPanelButton.add(jButtonConnect);
    jPanelButton.add(jButtonCancel);
    // This panel
    this.setLayout(new BorderLayout());
    this.add(jPanelAccount, BorderLayout.WEST);
    this.add(jPanelServer, BorderLayout.CENTER);
    this.add(jPanelButton, BorderLayout.SOUTH);
    Border innerBorder = BorderFactory.createLoweredBevelBorder();
    Border outerBorder = BorderFactory.createEmptyBorder(3, 3, 1, 3);
    setBorder(BorderFactory.createCompoundBorder(innerBorder, outerBorder));
    showUserID();
    showUserData();
    KeyListener keyListn = new KeyListener()
    {
      public void keyPressed(KeyEvent e)
      {
      }

      public void keyReleased(KeyEvent e)
      {
        synchronized (Start.env)
        {
          String item = String.valueOf(jComboBoxUserID.getEditor().getItem());
          if (!Start.env.getOwnContact().getContactId().equals(item))
          {
            setUserID();
            showUserData();
            loginFrame.localize();
          }
          else if (e.getKeyCode() == 10)
          {
            action_connectToServer();
          }
        }
      }

      public void keyTyped(KeyEvent e)
      {
      }
    };
    this.jComboBoxUserID.getEditor()
                        .getEditorComponent()
                        .addKeyListener(keyListn);
    jComboBoxUserID.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        synchronized (Start.env)
        {
          String item = String.valueOf(jComboBoxUserID.getEditor().getItem());
          if (!Start.env.getOwnContact().getContactId().equals(item))
          {
            setUserID();
            showUserData();
            loginFrame.localize();
          }
        }
      }
    });
    synchronized (Start.env)
    {
      if (Start.env.getSecurityLevel() > Settings.MEDIUM_SECURITY)
      {
        this.jCheckBoxAutoLogin.setEnabled(false);
        this.jCheckBoxAutoSave.setEnabled(false);
        this.jPasswordField.setText("");
      }
      this.jButtonCancel.setEnabled(false);
      if (Start.env.getLoginMode() == Oscar.AUTOLOGIN
          && Start.env.getSecurityLevel() != Settings.HIGH_SECURITY)
      {
        action_connectToServer();
      }
    }
  }

  /**
   * Action 'Cancel the connection'.
   */
  protected synchronized void action_cancelConnection()
  {
    synchronized (Start.env)
    {
      if (Start.env.getConnection() != null
          && !Start.env.getConnection().isLogged())
      {
        try
        {
          Start.env.getConnection().close();
        }
        catch (Exception ex)
        {
          System.err.println(this.getClass().getName() + ": " + ex.toString());
        }
        Start.env.setConnection(null);
        imageRotationPanel.stopImageRotation();
        try
        {
          Thread.sleep(1000);
        }
        catch (Exception ex)
        {
          System.err.println(this.getClass().getName() + ": " + ex.toString());
        }
        jComboBoxUserID.setEnabled(true);
        jPasswordField.setEnabled(true);
        jTextFieldHost.setEnabled(true);
        wholeNumberFieldPort.setEnabled(true);
        showLoginMode();
        jButtonConnect.setEnabled(true);
        jButtonCancel.setEnabled(false);
      }
    }
  }

  /**
   * Action 'Connect to the server'.
   */
  protected synchronized void action_connectToServer()
  {
    String msg, title;
    synchronized (Start.env)
    {
      final TitledList localized = Start.env.getLocalizedList();
      int value = ((String) jComboBoxUserID.getEditor().getItem()).length();
      if (value < 1)
      {
        msg = ((String[]) localized.get("errorMessages"))[19];
        title = ((String[]) localized.get("messageTitles"))[0];
        JOptionPane.showMessageDialog(loginFrame, msg, title,
                                      JOptionPane.ERROR_MESSAGE);
        return;
      }
      if (jTextFieldHost.getText().equals(""))
      {
        msg = ((String[]) localized.get("errorMessages"))[20];
        title = ((String[]) localized.get("messageTitles"))[0];
        JOptionPane.showMessageDialog(loginFrame, msg, title,
                                      JOptionPane.ERROR_MESSAGE);
        return;
      }
      if (wholeNumberFieldPort.getValue() < 1
          || wholeNumberFieldPort.getValue() > 65535)
      {
        msg = ((String[]) localized.get("errorMessages"))[2];
        title = ((String[]) localized.get("messageTitles"))[0];
        JOptionPane.showMessageDialog(loginFrame, msg, title,
                                      JOptionPane.ERROR_MESSAGE);
        return;
      }
      this.jComboBoxUserID.setEnabled(false);
      this.jPasswordField.setEnabled(false);
      this.jTextFieldHost.setEnabled(false);
      this.wholeNumberFieldPort.setEnabled(false);
      this.jCheckBoxAutoLogin.setEnabled(false);
      this.jCheckBoxAutoSave.setEnabled(false);
      this.jButtonConnect.setEnabled(false);
      setUserData();
      imageRotationPanel.startImageRotation();
      String host = jTextFieldHost.getText();
      int port = (int) wholeNumberFieldPort.getValue();
      String userId = String.valueOf(jComboBoxUserID.getEditor().getItem());
      String password = String.valueOf(jPasswordField.getPassword());
      Start.env.setConnection(new OscarConnection(host, port, userId, password));
      Start.env.getConnection().addObserver(new Observer()
      {
        public void update(Observable obs, Object obj)
        {
          String path, msg, title;
          jButtonCancel.setEnabled(false);
          synchronized (Start.env)
          {
            int ownId = Integer.parseInt(Start.env.getOwnContact()
                                                  .getContactId());
            loginFrame.jMenuItemExit.setEnabled(false);
            try
            {
              path = Default.FOLDER_NAME_HOME + "/"
                     + Start.env.getOwnContact().getContactId() + "/"
                     + Default.FILE_NAME_KNOWN_LIST;
              Start.env.setKnownList(Start.env.loadContactList(path));
            }
            catch (Exception ex)
            {
              System.err.println(this.getClass().getName() + ": "
                                 + ex.toString());
            }
            ContactList updateList = new ContactList();
            Contact contact;
            int size = Start.env.getKnownList().getContactListSize();
            for (int i = 0; i < size; i++)
            {
              contact = Start.env.getKnownList().get(i);
              if (contact.getIsInVisibleList())
              {
                updateList.addToContactList(contact);