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package helloStk;

import javacard.framework.*;
import sim.toolkit.*;

 //
 // The HelloWorld class is a simple Toolkit applet, which may be used as an
 // example to show how such an applet will be installed and registered and
 // how it will be triggered.
 //
 public class helloStk extends Applet implements ToolkitInterface,ToolkitConstants {
     // data fields
     private static final byte CMD_QUALIFIER = (byte)0x80;
     private byte[] menuEntry = {'S','e','r','v','i','c','e','1'};
     private byte[] textBuf = {'H','e','l','l','o',' ','w','o','r','l','d',' ','!'};
     private ToolkitRegistry reg;
     //
     // Constructor of applet
     //
     public helloStk() {
         // get a Registry object...
         // ...and initialize it according to the applet characteristics
         reg.initMenuEntry(menuEntry, (short)0, (short)menuEntry.length, PRO_CMD_DISPLAY_TEXT, false, (byte) 0, (short) 0);
     }
     //
     // Install method
     // *param bArray the array containing installation parameters
     // *param bOffset the starting offset in bArray
     // *param bLength the length in bytes of the parameter data in bArray
     //
     public static void install(byte bArray[], short bOffset, byte bLength) throws ISOException {
         // create and register applet
        helloStk HelloWorldApplet = new helloStk();
         HelloWorldApplet.register();
     }
     //
     // Process toolkit events
     // *param event the type of event to be processed
     // *exception ToolkitException
     //
     public void processToolkit(byte event) throws ToolkitException {
         // get the ProactiveHandler system instance
         ProactiveHandler proHdlr = ProactiveHandler.getTheHandler();

         if (event == EVENT_MENU_SELECTION) {
             // prepare a Display Text command
             proHdlr.init((byte) PRO_CMD_DISPLAY_TEXT, (byte)CMD_QUALIFIER, (byte)0x02);
             proHdlr.appendTLV((byte)(TAG_TEXT_STRING | TAG_SET_CR), textBuf,
                              (short)0, (short)textBuf.length);
             proHdlr.send();
         }
     }
     
   @Override
   public void process(APDU apdu) throws ISOException {
      // TODO Auto-generated method stub
      
   }
 }