// Sample code file: FilesystemAbstractStatusBar.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.io.*;
import java.util.*;

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

 /**
  Provides an example of extending the AbstractStatusBarSnapin class
  along with implementing the ShellSelectionListener interface.
  */
public class FilesystemAbstractStatusBar extends AbstractStatusBarSnapin
   implements ShellSelectionListener
{
   /**
    The text to be displayed in the new status bar item.
    */
   private String text;

   /*
    Implementation of the abstract methods in the AbstractStatusBarSnapin
    class.
   */

   /**
    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 AbstractStatusBar";
   }

   /**
    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 AbstractStatusBar Description";
   }

   /**
    The initAbstractSnapin() 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 initAbstractSnapin(InitSnapinInfo info)
   {
      shell.addShellSelectionListener(this);
      text = "Tree Selection: ";
      setStatusBarWidth(20);
      return true;
   }

   /**
    Implement shutdownAbstractSnapin() in your extending snap-in if there is
    anything that needs to be cleaned up, such as removing shell event listeners.
    It will be called from this class's shutdownSnapin() method before it performs
    any necessary clean up.
   */
   public void shutdownAbstractSnapin()
   {
      shell.removeShellSelectionListener(this);
   }

   /**
    The getStatusBarText() method should return the text to be displayed in the
    status bar item. This is called by ConsoleOne when the snap-in is first loaded,
    and whenever this snap-in's refresh() method is called.
   */
   public String getStatusBarText()
   {
      return text;
   }

   /*
    Implementation of the ShellSelectionListener interface.
    */

   /**
    The selectionChanged() method is a ShellSelectionEvent method that will be called
    when the selection changes in ConsoleOne. It allows the snap-in to perform an
    action associated with a selection event. The 'event' parameter is the
    ShellSelectionEvent that contains information about the new selection.
   */
   public void selectionChanged(ShellSelectionEvent event)
   {
      ObjectEntryCollection objectCollection = event.getObjectCollection();
      if (!objectCollection.hasNoElements())
      {
         ObjectEntry firstElement = objectCollection.getFirstElement();
         if(firstElement != null)
         {
            File file = new File(firstElement.getName());
            if (file.exists())
            {
              text = file.getPath() + " - size:" + file.length() + " bytes";
            }
            else
            {
              text = firstElement.getName();
            }
            refresh();
         }
      }
   }
}