// Sample code file: FilesystemStatusBarItem.java

/*
   Copyright (c) 1997-1999 Novell, Inc.  All Rights Reserved.

   THIS WORK IS SUBJECT TO U.S. AND INTERNATIONAL COPYRIGHT LAWS AND TREATIES.
   USE AND REDISTRIBUTION OF THIS WORK IS SUBJECT TO THE LICENSE AGREEMENT
   ACCOMPANYING THE SOFTWARE DEVELOPMENT KIT (SDK) THAT CONTAINS THIS WORK.
   PURSUANT TO THE SDK LICENSE AGREEMENT, NOVELL HEREBY GRANTS TO DEVELOPER A
   ROYALTY-FREE, NON-EXCLUSIVE LICENSE TO INCLUDE NOVELL'S SAMPLE CODE IN ITS
   PRODUCT. NOVELL GRANTS DEVELOPER WORLDWIDE DISTRIBUTION RIGHTS TO MARKET,
   DISTRIBUTE, OR SELL NOVELL'S SAMPLE CODE AS A COMPONENT OF DEVELOPER'S
   PRODUCTS. NOVELL SHALL HAVE NO OBLIGATIONS TO DEVELOPER OR DEVELOPER'S
   CUSTOMERS WITH RESPECT TO THIS CODE.
*/

package com.novell.sample.snapins.filesystem;

import java.awt.*;
import java.util.*;
import javax.swing.*;

// ConsoleOne snapin interfaces.
import com.novell.application.console.snapin.*;
import com.novell.application.console.snapin.scope.*;
import com.novell.application.console.snapin.context.*;

  /**
   This example of a status bar snap-in places a progress meter on the
   status bar.
  */
public class FilesystemStatusBarItem implements StatusBarSnapin
{
   /**
     Component to be placed on the status bar.
    */
   JPanel panel;

   JProgressBar progressBar;
   JLabel label;

   /** Shell instance */
   private Shell shell = null;

   /*
     Implementation of the StatusBarSnapin interface.
   */

   /**
    The getSnapinName() method (derived from Snapin interface) is called by
    configurators to display the localized name of this snap-in. It returns
    the translated name for this snap-in. The shell displays the name you
    provide together with all the snap-ins of a given type. The user is then
    allowed to select which snap-ins should be set as active in the current
    configuration. The getSnapinName() method may be called before initSnapin().
   */
   public String getSnapinName()
   {
      return "Novell's Sample Filesystem Namespace StatusBar Name";
   }

   /**
    The getSnapinDescription() method (derived from Snapin interface) is called
    by the configurators to display the localized description information
    about this snap-in. It returns the snap-in description as a String.
   */
   public String getSnapinDescription()
   {
      return "Novell's Sample Filesystem Namespace StatusBar Description";
   }

   /**
    The initSnapin() method initializes this class. You should do any
    onetime initialization here, such as adding event listeners. The method
    returns a boolean set to <i>true</i> if the snap-in is able to successfully
    complete initialization, or <i>false</i> if initialization fails. The 'info'
    parameter contains data the snap-in may use for initialization, such as
    references to the shell and the snap-in type, and may contain a reference
    to snap-in context data.
   */
   public boolean initSnapin(InitSnapinInfo info)
   {
      shell = info.getShell();
      return true;
   }

   /**
    Implement shutdownSnapin() in your extending snap-in if there is
    anything that needs to be cleaned up, such as removing shell event listeners.
   */
   public void shutdownSnapin()
   {
   }

   /**
    The getStatusBarItem() method should return a java Component that will be
    placed on the shell's status bar. This can be any object derived from Component,
    such as a text field, progress bar, button, and so forth.
   */
   public Component getStatusBarItem()
   {
      // Create a status bar that slowly increments.

      progressBar = new JProgressBar();
      progressBar.setMinimum(0);
      progressBar.setMaximum(100);
      progressBar.setValue(0);

      // Thread that updates the progress bar every second.
      final Thread updater = new Thread()
      {
         public void run()
         {
            try
            {
               while(progressBar.getValue() < progressBar.getMaximum())
               {
                  Thread.sleep(1000);
                  
                  // This causes the GUI work to be done on the event thread.
                  Worker worker  = new Worker();
                  SwingUtilities.invokeLater(worker);
               }
            }
            catch(InterruptedException e)
            {
            }
         }
      };

      JLabel label = new JLabel("Example:");
      JPanel panel = new JPanel();
      panel.add(label);
      panel.add(progressBar);

      updater.start();

      return panel;
   }
   
   private class Worker implements Runnable
   {
      public void run()
      {
         progressBar.setValue(progressBar.getValue() + 5);
         progressBar.repaint();
      }
   }
}