/*

* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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:   Queues commands to MDS.

*/

#ifndef VCXMYVIDEOSMDSCMDQUEUE_H

#define VCXMYVIDEOSMDSCMDQUEUE_H

// INCLUDES

#include <vcxmyvideosdefs.h>

#include <mdesession.h>

#include <mdequery.h>

#include <harvesterclient.h>

#include <mpxcollectionmessagedefs.h>

#include <vcxmyvideosdefs.h>

#include <e32property.h>

#include "vcxmyvideosalbum.h"

#define protected public

#define private public

#include "vcxmyvideosmdsdb.h"

#undef private

#undef protected

// FORWARD DECLARATIONS

class CMPXMedia;

class MVcxMyVideosMdsAlbumsObserver;

// CONSTANTS

// CLASS DECLARATION

/**

* All MDS commands inherit this.

*

* @lib mpxmyvideoscollectionplugin.lib

*/

NONSHARABLE_CLASS(CVcxMyVideosMdsCmd) : public CBase

    {    

    public:

        /**

        * Destructor

        */

        virtual ~CVcxMyVideosMdsCmd() {}

        /**

        * Command type. Used for casting the pointer to correct type.

        */

        CVcxMyVideosMdsDb::TRequestType iCmdType;

        /**

         * Pointer to client is stored here, used for performing response call.

         */

        MVcxMyVideosMdsAlbumsObserver* iClient;    

    };

/**

* Class which encapsulates GetVideoListL function parameters.

*

* @lib mpxmyvideoscollectionplugin.lib

*/

NONSHARABLE_CLASS(CVcxMyVideosMdsCmdGetVideoList) : public CVcxMyVideosMdsCmd

    {    

    public:

        /**

        * Constructor

        */

        CVcxMyVideosMdsCmdGetVideoList() {}

        /**

        * Destructor

        */

        virtual ~CVcxMyVideosMdsCmdGetVideoList() {}

    public:

        /**

        * Stored CreateVideoListL function parameters, see meanings from vcxmyvideosmdsdb.h file.

        */

        TVcxMyVideosSortingOrder iSortingOrder;

        TBool                    iAscending;

        TBool                    iFullDetails;

        CMPXMedia**              iVideoList;

    };

/**

* Class which stores GetAlbumsL function arguments.

*

* @lib mpxmyvideoscollectionplugin.lib

*/

NONSHARABLE_CLASS(CVcxMyVideosMdsCmdGetAlbums) : public CVcxMyVideosMdsCmd

    {    

    public: // Constructors and destructor

        /**

        * Constructor

        */

        CVcxMyVideosMdsCmdGetAlbums() {}

        /**

        * Destructor

        */

        virtual ~CVcxMyVideosMdsCmdGetAlbums() {}

    public:

        /**

        * Stored GetAlbumsL function parameters, see meanings from vcxmyvideosmdsalbums.h file.

        */

        CMPXMedia* iAlbumList;

    };

/**

* Class which stores GetAlbumContentIdsL function arguments.

*

* @lib mpxmyvideoscollectionplugin.lib

*/

NONSHARABLE_CLASS(CVcxMyVideosMdsCmdGetAlbumContentIds) : public CVcxMyVideosMdsCmd

    {    

    public: // Constructors and destructor

        /**

        * Constructor

        */

        CVcxMyVideosMdsCmdGetAlbumContentIds() {}

        /**

        * Destructor

        */

        virtual ~CVcxMyVideosMdsCmdGetAlbumContentIds() {}

    public:

        /**

        * Stored GetAlbumContentL function parameters, see meanings from vcxmyvideosmdsalbums.h file.

        */

        TUint32                         iAlbumId;        

        RArray<TVcxMyVideosAlbumVideo>* iAlbumContent; //not own

    };

/**

* Class which stores GetAlbumContentVideosL function arguments.

*

* @lib mpxmyvideoscollectionplugin.lib

*/

NONSHARABLE_CLASS(CVcxMyVideosMdsCmdGetAlbumContentVideos) : public CVcxMyVideosMdsCmd

    {    

    public: // Constructors and destructor

        /**

        * Constructor

        */

        CVcxMyVideosMdsCmdGetAlbumContentVideos() {}

        /**

        * Destructor

        */

        virtual ~CVcxMyVideosMdsCmdGetAlbumContentVideos() {}

    public:

        /**

        * Stored GetAlbumContentL function parameters, see meanings from vcxmyvideosmdsalbums.h file.

        */

        TUint32    iAlbumId;        

        CMPXMedia* iAlbumContentVideos; //not own

    };

/**

* Class which stores AddVideosToAlbumL function arguments.

*

* @lib mpxmyvideoscollectionplugin.lib

*/

NONSHARABLE_CLASS(CVcxMyVideosMdsCmdAddVideosToAlbum) : public CVcxMyVideosMdsCmd

    {    

    public: // Constructors and destructor

        /**

        * Constructor

        */

        CVcxMyVideosMdsCmdAddVideosToAlbum() {}

        /**

        * Destructor

        */

        virtual ~CVcxMyVideosMdsCmdAddVideosToAlbum() {}

    public:

        /**

        * Stored AddVideosToAlbumL function parameters, see meanings from vcxmyvideosdefs.h

        * KVcxCommandMyVideosAddToAlbum command descriptions.

        */

        CMPXMedia* iMpxCmd;

    };

/**

* Class which stores RemoveRelationsL function arguments.

*

* @lib mpxmyvideoscollectionplugin.lib

*/

NONSHARABLE_CLASS(CVcxMyVideosMdsCmdRemoveRelations) : public CVcxMyVideosMdsCmd

    {    

    public: // Constructors and destructor

        /**

        * Constructor

        */

        CVcxMyVideosMdsCmdRemoveRelations() {}

        /**

        * Destructor

        */

        virtual ~CVcxMyVideosMdsCmdRemoveRelations() {}

    public:

        /**

        * Stored RemoveRelationsL function parameters, see meanings from vcxmyvideosmdsalbums.h file.

        */

        RArray<TUint32>* iRelationIds; //not own

        RArray<TUint32>* iResults;  //not own

    };

/**

* Class which stores RemoveAlbumsL function arguments.

*

* @lib mpxmyvideoscollectionplugin.lib

*/

NONSHARABLE_CLASS(CVcxMyVideosMdsCmdRemoveAlbums) : public CVcxMyVideosMdsCmd

    {    

    public: // Constructors and destructor

        /**

        * Constructor

        */

        CVcxMyVideosMdsCmdRemoveAlbums() {}

        /**

        * Destructor

        */

        virtual ~CVcxMyVideosMdsCmdRemoveAlbums() {}

    public:

        /**

        * Stored RemoveAlbumsL function parameters, see meanings from vcxmyvideosmdsalbums.h file.

        */

        CMPXMedia* iMpxCmd; //not own

    };

/**

* Queues MDS commands.

*

* @lib mpxmyvideoscollectionplugin.lib

*/

NONSHARABLE_CLASS(CVcxMyVideosMdsCmdQueue) : public CBase

    {    

    public: // Constructors and destructor

        /**

        * Two-phased constructor

        * @return object constructed

        */

        static CVcxMyVideosMdsCmdQueue* NewL( CVcxMyVideosMdsDb& aMdsDb );

        /**

        * Destructor

        */

        virtual ~CVcxMyVideosMdsCmdQueue();

    public: // new methods

        /**

        * Executes command if queue is empty, otherwise adds it to queue.

        * Ownership of aCmd moves to this object.

        *

        * @param aCmd  Command to execute.

        */

        void ExecuteCmdL( CVcxMyVideosMdsCmd* aCmd );

        /**

        * Called when command finishes. Executes next command from the queue.

        */

        void CmdFinished();

        /**

         * Removes commands from command queue.

         * 

         * @param aType Defines what kind of commands are removed from the command queue.

         */

        void Cancel( CVcxMyVideosMdsDb::TRequestType aType = CVcxMyVideosMdsDb::EAll );

    private:

        /**

        * Constructor

        */

        CVcxMyVideosMdsCmdQueue( CVcxMyVideosMdsDb& aMdsDb );

        /**

        * Symbian 2nd phase constructor.

        */

        void ConstructL();

        /**

        * Executes the command.

        *

        * @param aCmd  Command to execute, ownership does not move.

        */

        void DoExecuteCmdL( CVcxMyVideosMdsCmd* aCmd );

    private:

        /**

        * Owner of this object.

        */

        CVcxMyVideosMdsDb& iMdsDb;

        /**

        * Command queue. Own.

        */

        RArray<CVcxMyVideosMdsCmd*> iQueue;

        /**

        * Set to ETrue when command is started and to EFalse

        * when command finishes.

        */

        TBool iCmdInProgress;

    };

#endif   // VCXMYVIDEOSMDSCMDQUEUE_H