1 /*

     2  * Copyright (c) 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:

    15  *     The header file for mde tone fetcher.

    16  *     

    17  */

    18 #ifndef TONESELECTIONENGINEPRIVATE_H

    19 #define TONESELECTIONENGINEPRIVATE_H

    20 

    21 #include "toneselectionengine_p.h"

    22 #include <mdesession.h>

    23 #include <mdequery.h>

    24 #include <mdelogiccondition.h>

    25 #include <mdeconstants.h>

    26 #include <mdeobjectquery.h>

    27 #include <mdccommon.h>

    28 #include <mdeitem.h>

    29 #include <mdeobject.h>

    30 #include <e32base.h>

    31 #include <QObject>

    32 #include <QStringList>

    33 // FORWARD DECLARATIONS

    34 class ToneFetcherEngine;

    35 // CONSTANTS

    36 _LIT( KMimeMp3, "mp3" );

    37 

    38 // CLASS DECLARATION

    39 /**

    40  *  This class is used for quering tones from mde.

    41  *

    42  */

    43 class ToneSelectionEnginePrivate : public QObject,

    44                             public CBase, 

    45                             public MMdESessionObserver,

    46                             public MMdEQueryObserver,

    47                             public MMdEObjectObserver,

    48                             public MMdEObjectPresentObserver                            

    49 {

    50     Q_OBJECT

    51 public:

    52 

    53     enum TStorageType

    54         {

    55         EPhoneMemory = 0, ERomStorage, EMassStorage, EMemoryCard

    56         };

    57     

    58     enum TQueryAttribute

    59         {

    60         EAttrMediaType = 20, // integer

    61         EAttrFileSize, // integer

    62         EAttrStorageType, // integer

    63         EAttrMediaFileId, // integer

    64         EAttrFileName, // string

    65         EAttrFullName, // string

    66         EAttrSongName, // string

    67         EAttrArtist, // string

    68         EAttrAlbum, // string

    69         EAttrGenre, // string

    70         EAttrComposer

    71         // string

    72         };

    73 

    74 public:

    75     ToneSelectionEnginePrivate(  ToneFetcherEngine *engine );

    76     virtual ~ToneSelectionEnginePrivate();

    77     

    78 signals:

    79     void mdeSessionOpened();

    80     void mdeSessionError( int error );

    81     void queryComplete( QStringList nameList, QStringList uriList );

    82     void queryError( int error );

    83     void notifyObjectChanged();

    84 

    85 

    86 public:

    87     static CMdEPropertyDef& PropertyDefL(CMdESession* aSession, TInt aAttr);

    88     void QueryTones();   

    89     void SetAttr( int attr, int value );

    90 

    91 private:   

    92     void ExcludeMusicPropertiesL(CMdELogicCondition& aCondition);    

    93     void LeaveIfSessionClosedL();

    94     CMdEPropertyDef& PropertyDefL(TInt aAttr);

    95 

    96 private:

    97     // from MMdESessionObserver

    98     void HandleSessionOpened(CMdESession& aSession, TInt aError);

    99     void HandleSessionError(CMdESession& aSession, TInt aError);

   100 

   101 private:

   102     // from MMdEQueryObserver (mdequery.h)

   103     void HandleQueryNewResults(CMdEQuery& aQuery, TInt aFirstNewItemIndex,

   104             TInt aNewItemCount);

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

   106 private:

   107     // from MMdEObjectObserver

   108     void HandleObjectNotification(CMdESession& aSession,

   109             TObserverNotificationType aType,

   110             const RArray<TItemId>& aObjectIdArray);

   111 

   112 private:

   113     // from MMdEObjectPresentObserver

   114     void HandleObjectPresentNotification(CMdESession& aSession,

   115             TBool aPresent, const RArray<TItemId>& aObjectIdArray);

   116     void AddObjectObserverL();

   117 private:

   118 

   119     ToneFetcherEngine *mServiceEngine;

   120 

   121     // session to metadata engine

   122     CMdESession* iSession;

   123 

   124     // metadata query

   125     CMdEObjectQuery* iQuery;

   126 

   127     // used for saving the quering result.

   128     //both name and uri.

   129     QStringList iNameList;

   130     QStringList iUriList;

   131 

   132     // is metadata session open

   133     TBool iSessionOpen;

   134 

   135     // max audio file file size

   136     TInt iMaxFileSize;

   137     

   138     // query error

   139     TInt iQueryError;

   140 };

   141 #endif /* TONESELECTIONENGINE_H_ */

   142