mtpdataproviders/mtpimagedp/inc/cmtpimagedp.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:11:40 +0200
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// Copyright (c) 2009 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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//
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/**
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 @file
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 @internalTechnology
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*/
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#ifndef CMTPIMAGEDP_H
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#define CMTPIMAGEDP_H
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#include <e32property.h> 
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#include <w32std.h> // PTP server/stack
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#include <e32hashtab.h> 
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#include <e32def.h>
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#include <mtp/cmtpdataproviderplugin.h>
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#include <comms-infras/commsdebugutility.h>
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#include <mtp/cmtpdataproviderplugin.h>
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#include "mmtpenumerationcallback.h"
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#include "cmtpimagedpobjectpropertymgr.h"
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class MMTPRequestProcessor;
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class CMTPImageDpThumbnailCreator;
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class CMTPImageDpObjectPropertyMgr;
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class CMTPImageDpMdeObserver;
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class CRepository;
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class CMTPImageDpRenameObject;
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const TInt KMaxExtNameLength = 4;
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/** 
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Implements the picture data provider plugin.
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@internalComponent
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*/
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class CMTPImageDataProvider : public CMTPDataProviderPlugin,
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                              public MMTPEnumerationCallback
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    {
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public:
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    static TAny* NewL(TAny* aParams);
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    ~CMTPImageDataProvider();
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public:
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    CMTPImageDpObjectPropertyMgr& PropertyMgr()const;
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    CMTPImageDpThumbnailCreator&  ThumbnailManager() const;
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    CRepository& Repository() const;
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    TMTPFormatCode FindFormatL(const TDesC& aExtension);
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    TBool GetCacheParentHandle(const TDesC& aParentPath, TUint32& aParentHandle);
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    void  SetCacheParentHandle(const TDesC& aParentPath, TUint32 aParentHandle);
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    void AppendDeleteObjectsArrayL(const TDesC& aSuid);
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    void HandleDeleteObjectsArray();
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public: // From CMTPDataProviderPlugin
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    void Cancel();
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    void ProcessEventL(const TMTPTypeEvent& aEvent, MMTPConnection& aConnection);
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    void ProcessNotificationL(TMTPNotification aNotification, const TAny* aParams);
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    void ProcessRequestPhaseL(TMTPTransactionPhase aPhase, const TMTPTypeRequest& aRequest, MMTPConnection& aConnection);
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    void StartObjectEnumerationL(TUint32 aStorageId, TBool aPersistentFullEnumeration);
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    void StartStorageEnumerationL();
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    void Supported(TMTPSupportCategory aCategory, RArray<TUint>& aArray) const;
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    void SupportedL(TMTPSupportCategory aCategory, CDesCArray& aStrings) const;
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public: // From MMTPEnumerationCallback    
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    void NotifyStorageEnumerationCompleteL();
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    void NotifyEnumerationCompleteL(TUint32 aStorageId, TInt aError);
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private:
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    CMTPImageDataProvider(TAny* aParams);
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    void ConstructL();
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    TInt LocateRequestProcessorL(const TMTPTypeRequest& aRequest, MMTPConnection& aConnection);
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    TInt LocateRequestProcessorL(const TMTPTypeEvent& aEvent, MMTPConnection& aConnection);    
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    void SessionClosedL(const TMTPNotificationParamsSessionChange& aSession);
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    void SessionOpenedL(const TMTPNotificationParamsSessionChange& aSession);
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    void RenameObjectL(const TMTPNotificationParamsHandle& aParam);
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    TUint QueryImageObjectCountL();
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private:
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    struct SMTPImageDpParentCache
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        {        
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        TPath   iPath;
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        TUint32 iHandle;
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        };
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private:
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	/**
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    FLOGGER debug trace member variable.
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    */
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    __FLOG_DECLARATION_MEMBER_MUTABLE;
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    CMTPImageDpObjectPropertyMgr*       iPropertyMgr;    
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    CMTPImageDpThumbnailCreator*        iThumbnailManager;
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    CMTPImageDpMdeObserver*             iMdeObserver;
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    CRepository*                        iRepository;
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    CMTPImageDpRenameObject*            iRenameObject;
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    /**
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    The active request processors table.
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    */ 
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    RPointerArray<MMTPRequestProcessor> iActiveProcessors;
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    /**
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     * contain the image mapping of extenstion to formatcode
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     */
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    RHashMap<TBuf<KMaxExtNameLength>, TMTPFormatCode> iFormatMappings;
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    SMTPImageDpParentCache  iParentCache;
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    TUint                   iPrePictures;
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    TInt                    iActiveProcessor;
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    TBool                   iActiveProcessorRemoved;    
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    TBool                   iEnumerated;
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	RPointerArray<HBufC>    iDeleteObjectsArray;
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    };
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#endif // CMTPIMAGEDP_H