/*

* 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:  Handles commands passed in by other appilcations

*

*/

#ifndef CMPXPDCOMMANDHANDLER_H

#define CMPXPDCOMMANDHANDLER_H

// INCLUDES

#include <e32base.h>

#include <mpxplaybackobserver.h>

#include <mpxplaybackframeworkdefs.h>

#include <mpxplaybackcommanddefs.h>

// FORWARD DECLARATIONS

class MMPXPlaybackUtility;

class MMPXViewUtility;

class CMPXParameter;

class CMPXDrmMediaUtility;

class CMPXCommonUiHelper;

// CLASS DECLARATION

/**

 * Process commands passed in by other applications.

 *

 *  @lib mpx.exe

 *  @since 3.1

 */

class CMPXPdCommandHandler : public CBase,

                             public MMPXPlaybackObserver

    {

    public: // Constructors and destructor

        /**

         * Two-phased constructor.

         *

         * @since 3.1

         * @param aPlaybackUtility Playback utility to use.

         * @param aCollectionMode The collection mode for current music player

         * @param aParameter The command to process.

         * @return Pointer to newly created object.

         */

        static CMPXPdCommandHandler * NewL( MMPXPlaybackUtility* aPlaybackUtility );

        /**

         * Two-phased constructor.

         *

         * @since 3.1

         * @param aPlaybackUtility Playback utility to use.

         * @param aCollectionMode The collection mode for current music player

         * @param aParameter The command to process.

         * @return Pointer to newly created object.

         */

        static CMPXPdCommandHandler * NewLC( MMPXPlaybackUtility* aPlaybackUtility );

        /**

         * Destructor.

         */

        virtual ~CMPXPdCommandHandler();

        TInt HandleCommandParametersL( const TDesC8& aParameter );

	    /**

	     * Handle media key commands.

	     *

	     * @param aCommand Media key commands. see mpxappui.hrh

	     */

	    void HandleCommandL( TMPXPlaybackCommand aCommand );

        /**

         *  Current state of player

         * 

         *  @since 3.1

         *  @return current PdPlaybackUtility state

         */

        TMPXPlaybackState PdStateL() const;

        TBool IsPlaybackCompleted();

    private:

        /**

         * C++ Constructor

         *

         */

        CMPXPdCommandHandler(MMPXPlaybackUtility* aPlaybackUtility);

        /**

         * By default Symbian 2nd phase constructor is private.

         *

         */

        void ConstructL();

        /**

         * From MMPXPlaybackObserver

         * Handle playback message

         *

         * @param aMessage playback message

         * @param aErr system error code.

         */

        void HandlePlaybackMessage( CMPXMessage* aMessage, TInt aError );

    private:  // New functions

        /**

         * Start processing the message

         *

         */

        void DoHandleMessageL();

        /**

         * Handle playback message

         *

         * @param aMessage playback message

         */

        void DoHandlePlaybackMessageL( const CMPXMessage& aMessage );

	    /**

	     *  Handle playback state changed.

	     *

	     *  @param aState New Playback state

	     */

	    void DoHandleStateChangedL(

	        TMPXPlaybackState aState );

        void ActivatePlaybackViewL();

        void SendCustomCommandToMPXL( TUint aTransactionID, TMPXPlaybackPdCommand aCustomCmd );

    private:

        MMPXPlaybackUtility* iPdPlaybackUtility; // owned

        MMPXPlaybackUtility* iPlaybackUtility; // owned

        MMPXViewUtility* iViewUtility; // owned

		CMPXDrmMediaUtility* iDrmMediaUtility; // owned

		CMPXCommonUiHelper* iCommonUiHelper; // owned

		TBool iPlaybackCompleted;

		TBufC<KMaxFileName> iCurrentFileName;

		TMPXPlaybackState iPrevousPlaybackState;

    };

#endif // CMPXPDCOMMANDHANDLER_H

// End of File