/*

* 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 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:      Observer interface for video data changes.*

*/

#ifndef VCXHGMYVIDEOSVIDEOMODELOBSERVER_H

#define VCXHGMYVIDEOSVIDEOMODELOBSERVER_H

// INCLUDE FILES

#include <mpxcollectionmessagedefs.h>

#include <mpxitemid.h>

// FORWARD DECLARATIONS

class CMPXMediaArray;

class CMPXMedia;

// CLASS DECLARATION

/**

 * Observer interface for video data changes.

 *

 * @lib vcxhgmyvideos.lib

 */

NONSHARABLE_CLASS( MVcxHgMyVideosVideoModelObserver )

    {

    public:

        /**

         * Called when a list of videos is available.

         * 

         * @param aVideoList List of videos

         */

        virtual void NewVideoListL( CMPXMediaArray& aVideoList ) = 0;

        /**

         * Called when the whole video list has been modified.

         * Normally this means that new items have been appended to list.

         */

        virtual void VideoListModifiedL() = 0;

        /*

         * Called when a single video item has fetched.

         * Ownership of video is transferred.

         * 

         * @param aVideo Video item.

         */

        virtual void VideoFetchingCompletedL( CMPXMedia* aVideo ) = 0;

        /**

         * Called when a single video item has been modified (add/remove/modify).

         * 

         * @param aEventType Type of modification event (add/remove/modify).

         * @param aMpxItemId MPX Item Id of the modified item.

         * @param aExtraInfo Extra information for modification event.

         * @param aSimulated If ETrue, event is not originated from MPX Collection.

         */

        virtual void VideoModifiedL( TMPXChangeEventType aEventType,

                                     TMPXItemId aMpxItemId,

                                     TInt32 aExtraInfo,

                                     TBool aSimulated = EFalse ) = 0;

        /**

         * Called when multiple video deletion command is completed.

         * 

         * @param aFailedCount Count of failed deletions, if any.

         * @param aFailedMpxId If above 1, MPXItemId of failed deletion.

         */

        virtual void VideoDeletionCompletedL( TInt aFailedCount,

                                              TMPXItemId aFailedMpxId ) = 0;

        /**

         * Called when move or copy command is completed.

         * 

         * @param aFailedCount Count of failed moves/copies, if any.

         * @param aFailedMpxId If above 1, MPXItemId of failed move/copy.

         */

        virtual void VideoMoveOrCopyCompletedL( TInt aFailedCount,

                                                TMPXItemId aFailedMpxId ) = 0;

        /**

         * Called when all details for a video have been fetched.

         * 

         * @param aMedia MPX Media that contains all details.

         */

        virtual void VideoDetailsCompletedL( const CMPXMedia& aMedia ) = 0;

    };

#endif // VCXHGMYVIDEOSVIDEOMODELOBSERVER_H