/*
 * TestIHM.java
 *
 * Created on 20 juillet 2007, 13:53
 */

package testihmwin;

import java.awt.AWTException;
import java.awt.BorderLayout;
import java.awt.Frame;
import java.awt.Image;
import java.awt.MenuItem;
import java.awt.PopupMenu;
import java.awt.SystemTray;
import java.awt.TrayIcon;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.event.WindowStateListener;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.Box;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.WindowConstants;

/**
 *
 * @author Claythest
 */
public class TestIHM extends JFrame {
    
    private JLabel userNameLabel;
    private TrayIcon trayIcon;
    private PopupMenu trayPopupMenu;
    private MenuItem openMenu;
    private MenuItem closeMenu;
    private Image image;
    
    /**
     * Creates a new instance of TestIHM
     */
    public TestIHM() {
        super("Test");
        
        try {
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        } catch (Exception e1) {
            e1.printStackTrace();
        }
        
        setIconImage(getImage());
        setAlwaysOnTop(true);
        setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE);
        addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                onCloseWindow();
            }
        });
        
        setUndecorated(true);
        setResizable(false);
        addWindowStateListener(new WindowStateListener() {
            public void windowStateChanged(WindowEvent e) {
                if (e.getNewState() == Frame.ICONIFIED)
                    TestIHM.this.setState(Frame.NORMAL);
            }
        });
        
        getContentPane().add(getUserNameLabel(), BorderLayout.CENTER);
        
        getContentPane().add(Box.createVerticalStrut(12), BorderLayout.NORTH);
        getContentPane().add(Box.createVerticalStrut(12), BorderLayout.SOUTH);
        getContentPane().add(Box.createHorizontalStrut(12), BorderLayout.EAST);
        getContentPane().add(Box.createHorizontalStrut(12), BorderLayout.WEST);
        
        pack();
        setLocationRelativeTo(null);
    }
    
    private Image getImage() {
        if (image == null)
            try {
                image = ImageIO.read(new File("icone.gif"));
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        
        return image;
    }
    
    private JLabel getUserNameLabel() {
        if (userNameLabel == null) {
            String userName = System.getProperty("user.name");
            userNameLabel = new JLabel("Vous êtes sur la session de " + userName);
        }
        
        return userNameLabel;
    }
    
    private TrayIcon getTrayIcon() {
        if (trayIcon == null) {
            trayIcon = new TrayIcon(getImage(), "Test IHM", getTrayPopupMenu());
            trayIcon.setImageAutoSize(true);
            trayIcon.addMouseListener(new MouseAdapter() {
                public void mouseClicked(MouseEvent e) {
                    if (e.getButton() == MouseEvent.BUTTON1)
                        showWindow();
                }
            });
        }
        
        return trayIcon;
    }
    
    private PopupMenu getTrayPopupMenu() {
        if (trayPopupMenu == null) {
            trayPopupMenu = new PopupMenu();
            trayPopupMenu.add(getOpenMenu());
            trayPopupMenu.add(getCloseMenu());
        }
        
        return trayPopupMenu;
    }
    
    private MenuItem getOpenMenu() {
        if (openMenu == null) {
            openMenu = new MenuItem("Ouvrir...");
            openMenu.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    showWindow();
                }
            });
        }
        
        return openMenu;
    }
    
    private MenuItem getCloseMenu() {
        if (closeMenu == null) {
            closeMenu = new MenuItem("Fermer");
            closeMenu.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    removeTrayIcon(getTrayIcon());
                    System.exit(0);
                }
            });
        }
        
        return closeMenu;
    }
    
    private void onCloseWindow() {
        setVisible(false);
        addTrayIcon(getTrayIcon());
    }
    
    private void showWindow() {
        TestIHM.this.setVisible(true);
        removeTrayIcon(getTrayIcon());
    }
    
    public static void addTrayIcon(TrayIcon toAdd) {
        if(SystemTray.isSupported())
            try {
                SystemTray.getSystemTray().add(toAdd);
            } catch (AWTException ex) {
                ex.printStackTrace();
            }
    }
    
    public static void removeTrayIcon(TrayIcon toRemove) {
        if(SystemTray.isSupported())
            SystemTray.getSystemTray().remove(toRemove);
    }
    
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                addTrayIcon((new TestIHM()).getTrayIcon());
            }
        });
    }
    
}