/*

* Copyright (c) 2005 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:  Definition of the S60 Audio Player event monitor

*

*/

#ifndef __CPLAYEREVENTDISPATCHER_H__

#define __CPLAYEREVENTDISPATCHER_H__

#include <e32base.h>

#include <e32std.h>

#include "MS60AudioPlayerObserver.h"

#include "S60AudioPlayer.h"

/**

Active object utility class to allow the callback to be called asynchronously.

This should help prevent re-entrant code in clients of the mediaframework.

*/

class CPlayerEventDispatcher : public CActive

	{

	enum TPlayerEvent

		{

		EAddSourceComplete = 1,

		EStateChanged,

		EFastForwardSupportChanged,

		ERewindSupportChanged,

		EDurationChanged,

		};

	public:

        /**

        * Two-phased constructor.

        */

		static CPlayerEventDispatcher* NewL(MS60AudioPlayerObserver& aObserver);

		/**

        *	Destructor

        */

		virtual ~CPlayerEventDispatcher();

        /**

        * Callback for the App that AddSource is complete

        * @since Series 60 3.1

        * @param aError One of the Standard Error Codes

        */

		void AddSourceComplete(TInt aError);

        /**

        * Callback for the App that the Player State Changed

        * @since Series 60 3.1

        * @param aState Resulting State after the change

        * @param aError One of the Standard Error Codes

        */

		void StateChanged(TPlayerState aState, TInt aError);

        /**

        * Used to Indiacate the FastForward Support change

        * @since Series 60 3.1

        */

		void FastForwardSupportChanged();

        /**

        * Used to Indiacate the Rewind Support change

        * @since Series 60 3.1

        */

		void RewindSupportChanged();

        /**

        * Callback for the App that the Duration changed

        * @since Series 60 3.1

        * @param aDuration The New Duration After the Change

        */

		void DurationChanged(const TTimeIntervalMicroSeconds& aDuration);

	private:

		CPlayerEventDispatcher(MS60AudioPlayerObserver& aObserver);

		void ConstructL();

		void RunL();

		void DoCancel();

	private:

		MS60AudioPlayerObserver* iObserver;

		TInt iError;

		TTimeIntervalMicroSeconds iDuration;

		TPlayerEvent iPlayerEvent;

		TPlayerState iPlayerState;

	};

#endif //__CPLAYEREVENTDISPATCHER_H__

//  End of File