/*

* Copyright (c) 2008-2008 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:  Music Player Action Handler Plugin

*

*/

#ifndef C_MUSICPLAYERACTIONHANDLER_H

#define C_MUSICPLAYERACTIONHANDLER_H

#include <ahplugin.h>

// FORWARD DECLARATION

class CLiwMap;

class TLiwVariant;

class MMPXPlaybackUtility;

/**

 *  Music Player Action Handler Plugin.

 *  Class extends the CAHPlugin in order to be used as a plugin for

 *  action handler.

 *  @since S60 S60 v5.0

 */

NONSHARABLE_CLASS( CMusicPlayerActionHandler ) : public CAHPlugin

    {

public:

    /**

     * Standard Symbian 2 phase constructor

     */

    static CMusicPlayerActionHandler* NewL();

    /**

     * Standard Symbian 2 phase constructor

     */

    static CMusicPlayerActionHandler* NewLC();

    /**

     * Standard C++ destructor.

     */

    ~CMusicPlayerActionHandler();

// from base class CAHPlugin

    /**

     * From CAHPlugin

     * This is called by the AH to execute an action 

     * @param aMap an action object to be executed

     * @return Error code

     */

    TInt ExecuteActionL( const CLiwMap* aMap );

private:

    /**

     * Standard Symbian 2nd phase constructor.

     */

    void ConstructL();

    /**

     * Executes Playback command on the current player.

     * @param aMap an action object to be executed

     * @return status code

     */

    TInt ExecutePlaybackCommandL( const CLiwMap* aMap );

    /**

     * Sends a message to Music Player.

     * @param aMap an action object to be executed

     * @return status code

     */

    TInt ExecuteMessageToMusicPlayerL( const CLiwMap* aMap );

    /**

     * goes to now-playing view

     * @return status code

     */

    TInt GoToNowPlayingL();

    /**

     * goes to The last Played song.

     * @param aMinimized indicates if app should be in the background.

     * @return status code

     */

    TInt GoToLastPlayedL(TBool aMinimazed);

    /**

     * goes to library/collection view

     * @return status code

     */

    TInt GoToMusicLibraryL();

    /**

     * Gets a descriptor from the map.

     * @param aMap containing the data.

     * @param aString where the data is extracted to.

     * @param aMapName element of the map that is to be extracted.

     * @return status code

     */

    TInt ExtractDesL( const CLiwMap* aMap, RBuf& aString,

            const TDesC8& aMapName );

    /**

     * Gets a variant from the map.

     * @param aMap containing the data.

     * @param aVariant where the data is extracted to.

     * @param aMapName element of the map that is to be extracted.

     * @return status code

     */

    TInt ExtractVariantL( const CLiwMap* aMap, TLiwVariant& aVariant,

            const TDesC8& aMapName );

private: // data

    /**

     * The playback utility where playback operations are performed.

     * Own.

     */

    MMPXPlaybackUtility* iPlaybackUtility;

    };

#endif /* C_MUSICPLAYERACTIONHANDLER_H */

//  End of File