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/*
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* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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* The header file for mde tone fetcher.
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*
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*/
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#ifndef MSGAUDIOSELECTIONENGINE_H
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#define MSGAUDIOSELECTIONENGINE_H
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// SYSTEM INCLUDES
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#include <mdesession.h>
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#include <mdequery.h>
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#include <mdelogiccondition.h>
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#include <mdeconstants.h>
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#include <mdeobjectquery.h>
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#include <mdccommon.h>
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#include <mdeitem.h>
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#include <mdeobject.h>
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#include <QObject>
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#include <QStringList>
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// FORWARD DECLARATIONS
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/**
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* This class is used for quering tones from mde.
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*/
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class MsgAudioSelectionEngine : public QObject,
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public MMdESessionObserver,
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public MMdEQueryObserver,
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public MMdEObjectObserver,
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public MMdEObjectPresentObserver
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{
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Q_OBJECT
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public:
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enum TStorageType
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{
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EPhoneMemory = 0, ERomStorage, EMassStorage, EMemoryCard
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};
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enum TQueryAttribute
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{
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EAttrMediaType = 20, // integer
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EAttrFileSize, // integer
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EAttrStorageType, // integer
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EAttrMediaFileId, // integer
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EAttrFileName, // string
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EAttrFullName, // string
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EAttrSongName, // string
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EAttrArtist, // string
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EAttrAlbum, // string
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EAttrGenre, // string
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EAttrComposer
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// string
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};
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public:
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MsgAudioSelectionEngine();
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virtual ~MsgAudioSelectionEngine();
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void CreateMetaDataSession();
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signals:
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void mdeSessionOpened();
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void mdeSessionError(int error);
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void queryComplete(QStringList nameList, QStringList uriList);
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void queryError(int error);
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void notifyObjectChanged();
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public:
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static CMdEPropertyDef& PropertyDefL(CMdESession* aSession, TInt aAttr);
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void QueryTones();
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void SetAttr(int attr, int value);
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private:
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void LeaveIfSessionClosedL();
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CMdEPropertyDef& PropertyDefL(TInt aAttr);
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void QueryTonesL();
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void HandleQueryCompletedL(CMdEQuery& aQuery, TInt aError);
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private:
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// from MMdESessionObserver
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void HandleSessionOpened(CMdESession& aSession, TInt aError);
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void HandleSessionError(CMdESession& aSession, TInt aError);
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private:
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// from MMdEQueryObserver (mdequery.h)
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void HandleQueryNewResults(CMdEQuery& aQuery, TInt aFirstNewItemIndex,
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TInt aNewItemCount);
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void HandleQueryCompleted(CMdEQuery& aQuery, TInt aError);
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private:
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// from MMdEObjectObserver
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void HandleObjectNotification(CMdESession& aSession,
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TObserverNotificationType aType,
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const RArray<TItemId>& aObjectIdArray);
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private:
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// from MMdEObjectPresentObserver
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void HandleObjectPresentNotification(CMdESession& aSession,
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TBool aPresent, const RArray<TItemId>& aObjectIdArray);
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void AddObjectObserverL();
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private:
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// session to metadata engine
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CMdESession* iSession;
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// metadata query
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CMdEObjectQuery* iQuery;
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// used for saving the quering result.
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//both name and uri.
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QStringList iNameList;
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QStringList iUriList;
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// is metadata session open
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TBool iSessionOpen;
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// max audio file file size
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TInt iMaxFileSize;
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// query error
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TInt iQueryError;
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};
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#endif /* MSGAUDIOSELECTIONENGINE_H */
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