1 /*

     2 * Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  MetadataEngine query adapter for CLF

    15 *

    16 */

    17 

    18 

    19 #ifndef C_CCLFQUERYADAPTER_H

    20 #define C_CCLFQUERYADAPTER_H

    21 

    22 // INCLUDES

    23 #include <e32base.h>

    24 #include <CLFContentListing.hrh>

    25 #include <CLFContentListing.h>

    26 #include <bamdesca.h>

    27 #include <mdesession.h>

    28 #include <mdeobjectquery.h>

    29 

    30 // FORWARD DECLARATIONS

    31 class CMdEObject;

    32 class CMdEProperty;

    33 class CMdEPropertyDefSet;

    34 

    35 /**

    36  *  Wraps MdE functionality for Content Listing Framework

    37  *

    38  *  @lib clf2mde

    39  *  @since S60 3.1

    40  */

    41 NONSHARABLE_CLASS( CCLFQueryAdapter ) : public CBase, 

    42                                         public MMdEQueryObserver

    43     {

    44     public: // Constructors and destructor

    45 

    46         // 2-phase constructor

    47         static CCLFQueryAdapter* NewL( CMdESession& aMdESession );

    48 

    49         // Destructor

    50         virtual ~CCLFQueryAdapter();

    51 

    52     public: // New functions

    53 

    54         /**

    55          * Queries the mediatypes

    56          *

    57          * @since S60 3.1

    58          * @param aMimeTypeArray array for mime types which are included in result

    59          * @param aMediaTypeArray array for media types which are included in result

    60          * @param aStatus reference to TRequestStatus which is completed

    61          */

    62 

    63         void QueryMdEObjectsL( const MDesCArray& aMimeTypeArray,

    64                                const TArray< TInt >& aMediaTypeArray,

    65                                CMdEObjectQuery*& aQuery,

    66                                TRequestStatus& aStatus );

    67 

    68         void QueryMdEObjectsL( const TArray< TCLFItemId >& aItemIDArray,

    69                                const TDesC& aObjDefStr,

    70                                CMdEObjectQuery*& aQuery,

    71                                TRequestStatus& aStatus );

    72 

    73     protected: // Functions from base classes

    74     

    75         /**

    76          * From MMdEQueryObserver

    77          */

    78         void HandleQueryNewResults( CMdEQuery& aQuery,

    79                                     TInt aFirstNewItemIndex,

    80                                     TInt aNewItemCount );

    81 

    82         /**

    83          * From MMdEQueryObserver

    84          */

    85         void HandleQueryCompleted( CMdEQuery& aQuery, TInt aError );

    86 

    87     private: // New functions

    88 

    89         /**

    90         * Helper function.

    91         */

    92         void CompleteRequest( CMdEQuery& aQuery, TInt aError );

    93 

    94         void AddMimeTypeConditionL( CMdELogicCondition& aLogicCondition,

    95                                     const CMdEPropertyDef& aPropDef,

    96                                     const TPtrC& aMimeType );

    97 

    98     private:

    99 

   100         /**

   101         * C++ default constructor.

   102         */

   103         CCLFQueryAdapter( CMdESession& aMdESession );

   104 

   105         /**

   106         * By default Symbian 2nd phase constructor is private.

   107         */

   108         void ConstructL();

   109 

   110     private: // data

   111 

   112         /** MdE session. Ref */

   113     	CMdESession& iMdESession;

   114 

   115         /** MdE namespace */

   116         CMdENamespaceDef* iDefaultNamespaceDef;

   117 

   118         /** MdE query array */

   119         RPointerArray< CMdEQuery > iQueryArray;

   120 

   121         /** Request status array */

   122         RPointerArray< TRequestStatus > iStatusArray;

   123     };

   124 

   125 #endif // C_CCLFQUERYADAPTER_H

   126 

   127 //  End of File