/*

* Copyright (c) 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:   This class plays files with the Helix Engine

 *

*/

#ifndef _CMPXVIDEOPLAYBACKSTATE_H_

#define _CMPXVIDEOPLAYBACKSTATE_H_

//

//  INCLUDES

//

#include <e32def.h>

#include <e32base.h>

#include "mpxhelixplaybackplugindefs.h"

#include "mpxvideo_debug.h"

//

//  FORWARD DECLARATIONS

//

class CMPXVideoPlaybackController;

//

//  CLASS DECLARATION

//

/*

 *  CMpxVideoPlaybackState class

 *

 *  State Machine keeptrack of the state of the playback controller

 *  @lib mpxvideohelixplayback.lib

 *

 */

NONSHARABLE_CLASS( CMPXVideoPlaybackState ) : public CBase

{

    public:

        //

        //  Constructors and destructor

        //

        /*

         *  Destructor

         *  Destroy the object and release all memory objects

         */

        ~CMPXVideoPlaybackState();

        //

        //  CMPXVideoPlaybackState Implementation

        //

        // Commands received from the Framework

        virtual void  HandlePlay();

        virtual void  HandlePause();

        virtual void  HandlePlayPause();

        virtual void  HandleStop();

        virtual void  HandleStartSeekL( TBool aForward );

        virtual void  HandleStopSeekL();

        virtual void  HandleClose();

        virtual void  HandleForeground();

        virtual void  HandleBackground();

        virtual void  HandleCustomPause();

        virtual void  HandleCustomPlay();

        virtual void  CommandHandleBackground();

        virtual void  CommandHandleForeground();

        // Events received from the MMF

        virtual void HandleOpenComplete(TInt aError);

        virtual void HandlePrepareComplete(TInt aError);

        virtual void HandleLoadingStarted();

        virtual void HandleLoadingComplete(TInt aError);

        virtual void HandlePlaybackComplete(TInt aError);

        virtual void HandleUnexpectedError( TInt aError );

        // general method

        virtual void OpenFileL( const TDesC& aMediaFile );

        virtual void OpenFileL( const RFile& aMediaFile );

        virtual void HandleVolumeChange();

        virtual void HandleSetPositionL(TInt aPosition);

        virtual TInt RetrieveFileDetailsL(const TArray<TMPXAttribute>& aAttrs, CMPXMedia* aMedia);

        void RetrieveGeneralAttributesL( CMPXMedia* aMedia, TUint attrG );

        void RetrieveVideoAttributesL( CMPXMedia* aMedia, TUint attrV );

        inline virtual TBool IsInitialized();

        virtual void HandleEndOfClip();

        virtual TInt RetrieveBufferingPercentage();

        virtual void ResolveTimeoutError( TInt aError );

        //

        // Set aspect ratio to mmf controller

        //

        virtual void SetAspectRatioL( CMPXCommand& aCmd, TMMFScalingType aType );

        virtual void SendErrorToViewL( TInt aError );

        inline virtual TMPXVideoPlaybackState  GetState();

#ifdef SYMBIAN_ENABLE_64_BIT_FILE_SERVER_API

        virtual void OpenFile64L( const RFile64& aMediaFile );

#endif // SYMBIAN_ENABLE_64_BIT_FILE_SERVER_API

    protected:

        /*

         *  C++ default constructor

         */

        CMPXVideoPlaybackState();

        /*

         *  the second phase constructor ConstructL to safely construct things

         *  that can leave

         */

        void ConstructL(CMPXVideoPlaybackController* aVideoPlaybackCtlr);

        void IssuePlayCommand( TMPXVideoPlaybackState aState,

                               MMPXPlaybackPluginObserver::TEvent aEvent,

                               TBool aSendEvent = ETrue );

    protected:

        //

        //  Data

        //

        CMPXVideoPlaybackController*        iVideoPlaybackCtlr;   // not owned

        RFs                                 iFs;

};

/*******************************************************/

/*         SUB CLASS DECLARATIONS                         */

/*******************************************************/

////////////////////////////////////////////////////////

///     Declaration of CMPXNotIntialisedState

////////////////////////////////////////////////////////

class CMPXNotInitialisedState : public CMPXVideoPlaybackState

{

    public:

        static CMPXVideoPlaybackState* NewL(CMPXVideoPlaybackController* aVideoPlaybackCtlr);

        virtual ~CMPXNotInitialisedState();

        // general method

        virtual void HandleVolumeChange();

        virtual TInt RetrieveFileDetailsL(const TArray<TMPXAttribute>& aAttrs, CMPXMedia* aMedia);

        virtual void HandleClose();

        virtual void SetAspectRatioL( CMPXCommand& aCmd, TMMFScalingType aType );

        inline virtual TBool IsInitialized();

        virtual void HandleUnexpectedError( TInt aError );

        virtual void HandleBackground();

        virtual void HandleForeground();

        virtual void HandlePlay();

        inline virtual TMPXVideoPlaybackState GetState();

};

////////////////////////////////////////////////////////

///     Declaration of CMPXIntialisingState

////////////////////////////////////////////////////////

class CMPXInitialisingState : public CMPXVideoPlaybackState

{

    public:

        static CMPXVideoPlaybackState* NewL(CMPXVideoPlaybackController* aVideoPlaybackCtlr);

        virtual ~CMPXInitialisingState();

        virtual void OpenFileL( const TDesC& aMediaFile );

        virtual void OpenFileL( const RFile& aMediaFile );

        // Methods where video plabkack behavior varies for this state

        virtual void HandleForeground();

        virtual void HandleBackground();

        // Events received from the MMF

        virtual void HandleOpenComplete(TInt aError);

        virtual void HandlePrepareComplete(TInt aError);

        // general method

        virtual void HandleVolumeChange();

        virtual TInt RetrieveFileDetailsL(const TArray<TMPXAttribute>& aAttrs, CMPXMedia* aMedia);

        virtual void SetAspectRatioL( CMPXCommand& aCmd, TMMFScalingType aType );

        inline virtual TBool IsInitialized();

        virtual void HandleUnexpectedError( TInt aError );

        inline virtual TMPXVideoPlaybackState GetState();

#ifdef SYMBIAN_ENABLE_64_BIT_FILE_SERVER_API

        virtual void OpenFile64L( const RFile64& aMediaFile );

#endif // SYMBIAN_ENABLE_64_BIT_FILE_SERVER_API

};

////////////////////////////////////////////////////////

///     Declaration of CMPXIntialisedState

////////////////////////////////////////////////////////

class CMPXInitialisedState : public CMPXVideoPlaybackState

{

    public:

        static CMPXVideoPlaybackState* NewL(CMPXVideoPlaybackController* aVideoPlaybackCtlr);

        virtual ~CMPXInitialisedState();

        // Methods where video plabkack behavior varies for this state

        // Commands received from the Framework

        virtual void HandlePlay();

        virtual void HandleStop();

        virtual void HandleForeground();

        virtual void HandleBackground();

        // general method

        virtual void HandleSetPositionL(TInt aPosition);

        inline virtual TMPXVideoPlaybackState GetState();

};

////////////////////////////////////////////////////////

///     Declaration of CMPXPlayingState

////////////////////////////////////////////////////////

class CMPXPlayingState : public CMPXVideoPlaybackState

{

    public:

        static CMPXVideoPlaybackState* NewL(CMPXVideoPlaybackController* aVideoPlaybackCtlr);

        virtual ~CMPXPlayingState();

        // Methods where video plabkack behavior varies for this state

        // Commands received from the Framework

        virtual void HandlePause();

        virtual void HandleStop();

        virtual void HandleStartSeekL( TBool aForward );

        virtual void HandlePlayPause();

        virtual void HandleBackground();

        virtual void HandleCustomPause();

        // Events received from the MMF

        virtual void HandleLoadingStarted();

        // general method

        virtual void HandleSetPositionL(TInt aPosition);

        virtual void ResolveTimeoutError( TInt aError );

        inline virtual TMPXVideoPlaybackState GetState();

};

////////////////////////////////////////////////////////

///     Declaration of CMPXBufferingState

////////////////////////////////////////////////////////

class CMPXBufferingState : public CMPXVideoPlaybackState

{

    public:

        static CMPXVideoPlaybackState* NewL(CMPXVideoPlaybackController* aVideoPlaybackCtlr);

        virtual ~CMPXBufferingState();

        // Methods where video plabkack behavior varies for this state

        // Commands received from the Framework

        //virtual void  HandleStop();

        virtual void HandleForeground();

        virtual void HandleBackground();

        virtual void HandleStop();

        virtual void HandlePause();

        virtual TInt RetrieveBufferingPercentage();

        // Events received from the MMF

        virtual void HandleLoadingStarted();

        virtual void HandleLoadingComplete(TInt aError);

        // Handle end of the clip situation, where we might get

        // playbackcomplete before loadingcomplete

        // general method

        virtual void ResolveTimeoutError( TInt aError );

        inline virtual TMPXVideoPlaybackState GetState();

};

////////////////////////////////////////////////////////

///     Declaration of CMPXPausedState

////////////////////////////////////////////////////////

class CMPXPausedState : public CMPXVideoPlaybackState

{

    public:

        static CMPXVideoPlaybackState* NewL( CMPXVideoPlaybackController* aVideoPlaybackCtlr );

        virtual ~CMPXPausedState();

        // Methods where video plabkack behavior varies for this state

        // Commands received from the Framework

        virtual void HandlePlay();

        virtual void HandleStop();

        virtual void HandleStartSeekL( TBool aForward );

        virtual void  HandlePlayPause();

        virtual void HandleForeground();

        virtual void HandleCustomPlay();

        // general method

        virtual void HandleSetPositionL( TInt aPosition );

        inline virtual TMPXVideoPlaybackState GetState();

};

////////////////////////////////////////////////////////

///     Declaration of CMPXSeekingState

////////////////////////////////////////////////////////

class CMPXSeekingState : public CMPXVideoPlaybackState

{

    public:

        static CMPXVideoPlaybackState* NewL(CMPXVideoPlaybackController* aVideoPlaybackCtlr);

        virtual ~CMPXSeekingState();

        // Methods where video plabkack behavior varies for this state

        // Commands received from the Framework

        virtual void HandleStopSeekL();

        virtual void HandleBackground();

        virtual void HandlePause();

        virtual void HandlePlay();

        virtual void HandleSetPositionL( TInt aPosition );

        virtual void HandleStop();

        inline virtual TMPXVideoPlaybackState GetState();

};

////////////////////////////////////////////////////////

///     Declaration of CMPXStoppedState

////////////////////////////////////////////////////////

class CMPXStoppedState : public CMPXVideoPlaybackState

{

    public:

        static CMPXVideoPlaybackState* NewL(CMPXVideoPlaybackController* aVideoPlaybackCtlr);

        virtual ~CMPXStoppedState();

        // Methods where video plabkack behavior varies for this state

        // Commands received from the Framework

        virtual void HandlePlay();

        virtual void HandleClose();

        // general method

        virtual void HandleSetPositionL(TInt aPosition);

        virtual void ResolveTimeoutError( TInt aError );

        inline virtual TMPXVideoPlaybackState GetState();

};

// INLINE METHODS

inline

TMPXVideoPlaybackState CMPXVideoPlaybackState::GetState()

{

    MPX_DEBUG(_L("CMPXVideoPlaybackState::GetState()"));

    // sub-classes to return their respective value

    return EMPXNumberOfStates;

}

inline

TMPXVideoPlaybackState CMPXNotInitialisedState::GetState()

{

    MPX_DEBUG(_L("CMPXNotInitialisedState::GetState()"));

    return EMPXVideoNotInitialized;

}

inline

TMPXVideoPlaybackState CMPXInitialisingState::GetState()

{

    MPX_DEBUG(_L("CMPXInitialisingState::GetState()"));

    return EMPXVideoInitializing;

}

inline

TMPXVideoPlaybackState CMPXInitialisedState::GetState()

{

    MPX_DEBUG(_L("CMPXInitialisedState::GetState()"));

    return EMPXVideoInitialized;

}

inline

TMPXVideoPlaybackState CMPXPlayingState::GetState()

{

    MPX_DEBUG(_L("CMPXPlayingState::GetState()"));

    return EMPXVideoPlaying;

}

inline

TMPXVideoPlaybackState CMPXPausedState::GetState()

{

    MPX_DEBUG(_L("CMPXPausedState::GetState()"));

    return EMPXVideoPaused;

}

inline

TMPXVideoPlaybackState CMPXStoppedState::GetState()

{

    MPX_DEBUG(_L("CMPXStoppedState::GetState()"));

    return EMPXVideoStopped;

}

inline

TMPXVideoPlaybackState CMPXBufferingState::GetState()

{

    MPX_DEBUG(_L("CMPXBufferingState::GetState()"));

    return EMPXVideoBuffering;

}

inline

TMPXVideoPlaybackState CMPXSeekingState::GetState()

{

    MPX_DEBUG(_L("CMPXSeekingState::GetState()"));

    return EMPXVideoSeeking;

}

inline

TBool CMPXVideoPlaybackState::IsInitialized()

{

    return ETrue;

}

inline

TBool CMPXNotInitialisedState::IsInitialized()

{

    return EFalse;

}

inline

TBool CMPXInitialisingState::IsInitialized()

{

    return EFalse;

}

#endif  //_CMPXVIDEOPLAYBACKSTATE_H_