/*

* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

 *

*/

// PACKAGE

package com.nokia.microedition.volumekeys;

// IMPORTS

import com.nokia.microedition.media.NativeError;

import java.lang.OutOfMemoryError;

//import com.nokia.microedition.volumekeys.LCDUIForegroundListener;

import org.eclipse.swt.*;

import org.eclipse.swt.widgets.*;

import javax.microedition.lcdui.*;

import org.eclipse.swt.widgets.Display;

// for xm-radio fix

//import com.symbian.midp.runtime.ToolkitInvoker;

// CLASS DESCRIPTION

/**

 * Provides information about the state of the MIDlet

 */

public class ForegroundListener implements Listener

{

    //private final LCDUIForegroundListener iLCDUIForegroundListener;

    private final int iForegroundHandle;

    private final int iEventSourceHandle;

     // Added for MMAPI UI 3.x

    private boolean flagForground = true;

   // private MMAPILCDUIInvokerImpl obj;

    /*

     * Constructor. Creates Foreground listener

     * The listener is added to Event source native side

     */

    public ForegroundListener(int aEventSourceHandle)

    {

        iEventSourceHandle = aEventSourceHandle;

		 // Added for MMAPI UI 3.x

        // obj = new MMAPILCDUIInvokerImpl();

        // obj.AddObservertoDisplay(this);

         System.out.println("inside ForgroundLIstener constructor before _initialize");

         iForegroundHandle = _initialize(aEventSourceHandle, this/*, iToolkitHandle*/);

         System.out.println("inside ForgroundLIstener constructor after _initialize");

         if (iForegroundHandle < NativeError.KErrNone)

         {

            throw new OutOfMemoryError("Foreground initialization failed.");

         }

    }

public void init()

{

final ForegroundListener listener = this;

System.out.println("inside init()....");

try{

	 final org.eclipse.swt.widgets.Display disp = com.nokia.mj.impl.nokialcdui.LCDUIInvoker.getEswtDisplay();

	 System.out.println("inside init()....1");

	 			 disp.syncExec(new Runnable() {

	 			             public void run() {

	 							org.eclipse.swt.widgets.Display disp = com.nokia.mj.impl.nokialcdui.LCDUIInvoker.getEswtDisplay();

	 			               disp.addFilter(SWT.Activate,listener);

	 			               disp.addFilter(SWT.Deactivate,listener);

	 			             }

		 });

}

catch(Exception e)

{

	System.out.println("inside init()....exception is " + e.toString());

}

}

    //  Added for MMAPI UI 3.x

	    public boolean isForeground()

	    {

	   		return flagForground;

	    }

		/*

	     * From org.eclipse.swt.widget.Listener interface

	     * Handling all the event

	     * Used to filter out the event which can be used for Foreground/Background notification

	     */

	    public void handleEvent(Event event)

	    {

			System.out.println("ForegroundListener :handle event is called");

			if(event.type == SWT.Activate)

			{

				System.out.println("handle event got a event: not in background");

				flagForground = true;

			//	update();

			}

			else if(event.type == SWT.Deactivate)

			{

				System.out.println("handle event got a event: in background");

				flagForground = false;

			// update();

			}

	}

  /*

  * Called from handleEvent callback function to notify native about the midlet foreground status

  */

    public synchronized void update()

    {

		boolean isFg = isForeground();

		System.out.println("ForegroundListener.java inside update() : before calling native function ");

       _setForeground(iEventSourceHandle, iForegroundHandle, isFg);

       System.out.println("ForegroundListener.java inside update() : after calling native function ");

    }

    private native int _initialize(int aEventSourceHandle,

                                   Object aForegroundListener/*,

                                   int atoolkitHandle*/); // xm-radio fix

   private native void _setForeground(int aEventSourceHandle,

                                       int aForegroundHandle,

                                       boolean aForeground);

}

// End of File