1 /*

     2 * Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

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

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  This class is an implementation of control

    15 *

    16 */

    17 

    18 package com.nokia.microedition.media.control;

    19 

    20 import javax.microedition.media.Player;

    21 

    22 public class ControlImpl implements javax.microedition.media.Control

    23 {

    24     protected Player iPlayer;

    25     protected int iControlHandle;

    26     protected int iEventSource;

    27 

    28     /**

    29      * Constructor

    30      */

    31     public ControlImpl()

    32     {

    33     }

    34 

    35     /**

    36      * Called when the Player is disposed

    37      */

    38     public void notifyDispose()

    39     {

    40     }

    41 

    42     /**

    43      * Set handles

    44      * @param aPlayer Player instance

    45      * @param aEventSource Handle to event source

    46      * @param aControlHandle Handle Handle to control

    47      */

    48     public void setHandles(Player aPlayer,

    49                            int aEventSource,

    50                            int aControlHandle)

    51     {

    52         iPlayer = aPlayer;

    53         iEventSource = aEventSource;

    54         iControlHandle = aControlHandle;

    55 

    56         _setHandle(aEventSource, aControlHandle, this);

    57     }

    58 

    59     /**

    60      * Throws IllegalStateException if player is closed and control

    61      * cannot be used anymore.

    62      * @throws IllegalStateException if Player is closed.

    63      */

    64     protected void checkState()

    65     {

    66         if (iPlayer.getState() == Player.CLOSED)

    67         {

    68             throw new IllegalStateException("Player is CLOSED.");

    69         }

    70     }

    71 

    72     private static native void _setHandle(int aEventSourceHandle,

    73                                           int aControlHandle,

    74                                           Object aControl);

    75 }