/*

* 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:  Handles collection Open operation related functionality

*

*/

#ifndef VCXMYVIDEOSOPENHANDLER_H

#define VCXMYVIDEOSOPENHANDLER_H

class CVcxMyVideosCollectionPlugin;

class MMPXCollectionPluginObserver;

class CVcxMyVideosMdsDb;

#include "vcxmyvideosmdsdb.h"

enum TVcxItemType

    {

    EVcxItemTypeNone,

    EVcxItemTypeVideo,

    EVcxItemTypeCategory,

    EVcxItemTypeAlbum

    };

/**

 */

NONSHARABLE_CLASS( CVcxMyVideosOpenHandler ) : public CBase, public MVcxMyVideosMdsAlbumsObserver

    {

    friend class CVcxMyVideosVideoCache;

public:

    /**

    * Two-phased constructor

    */

    static CVcxMyVideosOpenHandler* NewL( CVcxMyVideosCollectionPlugin& aCollection,

            CVcxMyVideosVideoCache& aCache,

            CVcxMyVideosMdsDb& aMds );

    /**

    * Destructor

    */

    virtual ~CVcxMyVideosOpenHandler();

public:

    /**

    * Handle collection Open operation.

    *

    * @param aPath  Path to open.

    */

    void OpenL( const CMPXCollectionPath& aPath );

    /**

     * From MVcxMyVideosMdsAlbumsObserver.

     */

    void HandleAlbumOpenL();

    /**

     * From MVcxMyVideosMdsAlbumsObserver, no implementation.

     */

    void HandleGetAlbumsResp( CMPXMedia* /*aAlbumList*/ ) {}

    /**

     * From MVcxMyVideosMdsAlbumsObserver, no implementation.

     */

    void HandleGetAlbumContentIdsResp( TUint32 /*aAlbumId*/,

            RArray<TVcxMyVideosAlbumVideo>& /*aContentArray*/ ) {}

    /**

     * From MVcxMyVideosMdsAlbumsObserver, no implementation.

     */

    void HandleAddVideosToAlbumResp( CMPXMedia* /*aCmd*/,

            RPointerArray<CMdEInstanceItem>& /*aItemArray*/ ) {}

    /**

     * From MVcxMyVideosMdsAlbumsObserver, no implementation.

     */

    void HandleRemoveRelationsResp( RArray<TUint32>& /*aRelationIds*/,

            RArray<TUint32>& /*aResults*/ ) {}

    /**

     * From MVcxMyVideosMdsAlbumsObserver, no implementation.

     */

    void HandleRemoveAlbumsResp( CMPXMedia* /*aCmd*/,

            RArray<TUint32>& /*aResultIds*/ ) {}

    /**

     * From MVcxMyVideosMdsAlbumsObserver, no implementation.

     */

    void HandleRelationEvent( TObserverNotificationType /*aType*/,

            const RArray<TMdERelation>& /*aRelationArray*/ ) {}

    /**

     * Called as a response to GetAlbumContentVideosL.

     * 

     * @param aAlbumId           ID of the album containing the result videos.

     * @param aVideoList         Media containing array of videos.

     * @param aError             Error code in case of failure.

     * @param aFirstNewItemIndex Index of the first new item.

     * @param aNewItemCount      How many new items in the query since the last results.

     * @param aComplete          ETrue if query is complete, EFalse if there is more to come.

     */

    void HandleGetAlbumContentVideosResp( TUint32 aAlbumId, CMPXMedia& aVideoList,

            TInt aError, TInt aFirstNewItemIndex, TInt aNewItemCount, TBool aComplete );

    void DoHandleCreateVideoListRespL(

            CMPXMedia* aVideoList, TInt aNewItemsStartIndex, TBool aComplete );

private:

    /**

    * 2nd-phase Constructor

    */

    void ConstructL();

    /**

    * Default Constructor

    */

    CVcxMyVideosOpenHandler( CVcxMyVideosCollectionPlugin& aCollection,

            CVcxMyVideosVideoCache& aCache,

            CVcxMyVideosMdsDb& aMds );

    /**

     * Opens category.

     * 

     * @param aCategoryId  Category to open.

     */

    void OpenCategoryL( TUint32 aCategoryId );

    /**

     * Leaving version of HandleGetAlbumContentVideosResp.

     */

    void HandleGetAlbumContentVideosRespL(

            TUint32 aAlbumId, CMPXMedia& /*aVideoList*/, TInt aError,

            TInt /*aFirstNewItemIndex*/, TInt /*aNewItemCount*/, TBool aComplete );

public:

    /**

     * If album is opened when the album list is not yet complete,

     * then the album ID which is tried to open is stored here.

     * The open processing is continued when album list is received

     * from MDS. There can't be several album opens pending since

     * we do not call HandleOpen before we get the album list.

     */

    TUint32 iPendingAlbumOpenId;

    /**

     * for testing, temp

     */

    CMPXMedia* iAlbumVideoList;

private: // data

    /**

    * Collection plugin main class. Owner of this object.

    */

    CVcxMyVideosCollectionPlugin& iCollection;

    /**

    * Videos cache, owned by iCollection. Reference is stored here

    * just to avoid one pointer access.

    */

    CVcxMyVideosVideoCache& iCache;

    /**

    * Object for accessing MDS database, owned by iCollection. Reference is stored here

    * just to avoid one pointer access.

    */

    CVcxMyVideosMdsDb& iMds;

    /**

    * The category ids being opened are stored here. These values are used

    * to filter list when items arrive from MDS. KVcxMvcCategoryIdAll category is not listed here.

    * This is in sync with iVideoListsBeingOpened.

    */

    RArray<TInt> iCategoryIdsBeingOpened;

    /**

    * Video lists for categories being opened are stored here.

    * This is in sync with iCategoryIdsBeingOpened.

    */

    RArray<CMPXMedia*> iVideoListsBeingOpened;

    /**

    * The album IDs being opened are stored here. These values are used

    * to filter list when items arrive from MDS.

    * This is in sync with iAlbumVideoListsBeingOpened.

    */

    RArray<TInt> iAlbumIdsBeingOpened;

    /**

    * Video lists for albums being opened are stored here.

    * This is in sync with iAlbumIdsBeingOpened.

    */

    RArray<CMPXMedia*> iAlbumVideoListsBeingOpened;

    /**

     * Path being opened is stored here for the HandleOpenL call.

     * Not Own.

     */

    const CMPXCollectionPath* iPath;

    };

#endif // VCXMYVIDEOSACTIVETASK_H