mtpdataproviders/mtpimagedp/src/cmtpimagedpcopyobject.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 15 Sep 2010 13:07:27 +0300
branchRCL_3
changeset 48 debf68073f2f
parent 43 4a793f564d72
child 58 142dacf7b30e
permissions -rw-r--r--
Revision: 201035 Kit: 201036
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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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#include <f32file.h>
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#include <bautils.h>
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#include <pathinfo.h> // PathInfo
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#include <sysutil.h>
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#include <mtp/mmtpdataproviderframework.h>
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#include <mtp/mmtpobjectmgr.h>
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#include <mtp/mmtpstoragemgr.h>
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#include <mtp/cmtpobjectmetadata.h>
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#include <mtp/cmtptypearray.h>
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#include <mtp/cmtptypestring.h>
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#include "cmtpimagedpcopyobject.h"
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#include "mtpimagedppanic.h"
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#include "mtpimagedputilits.h"
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#include "cmtpimagedp.h"
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__FLOG_STMT(_LIT8(KComponent,"CopyObject");)
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const TInt RollbackFuncCnt = 1;
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/**
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Verification data for the CopyObject request
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*/
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const TMTPRequestElementInfo KMTPCopyObjectPolicy[] = 
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    {
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        {TMTPTypeRequest::ERequestParameter2, EMTPElementTypeStorageId, EMTPElementAttrWrite, 0, 0, 0},
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        {TMTPTypeRequest::ERequestParameter3, EMTPElementTypeObjectHandle, EMTPElementAttrDir, 1, 0, 0}
0
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    };
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/**
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Two-phase construction method
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@param aPlugin	The data provider plugin
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@param aFramework	The data provider framework
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@param aConnection	The connection from which the request comes
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@return a pointer to the created request processor object
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*/     
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MMTPRequestProcessor* CMTPImageDpCopyObject::NewL(MMTPDataProviderFramework& aFramework, MMTPConnection& aConnection,CMTPImageDataProvider& aDataProvider)
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    {
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    CMTPImageDpCopyObject* self = new (ELeave) CMTPImageDpCopyObject(aFramework, aConnection,aDataProvider);
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    CleanupStack::PushL(self);
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    self->ConstructL();
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    CleanupStack::Pop(self);
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    return self;
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    }
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/**
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Destructor
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*/	
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CMTPImageDpCopyObject::~CMTPImageDpCopyObject()
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    {	
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    __FLOG(_L8(">> CMTPImageDpCopyObject::~CMTPImageDpCopyObject"));
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    delete iDest;
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    delete iFileMan;
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    delete iSrcObjectInfo;
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    delete iTargetObjectInfo;
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    iRollbackActionL.Close();
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    __FLOG(_L8("<< CMTPImageDpCopyObject::~CMTPImageDpCopyObject"));
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    __FLOG_CLOSE;
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    }
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/**
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Standard c++ constructor
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*/	
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CMTPImageDpCopyObject::CMTPImageDpCopyObject(MMTPDataProviderFramework& aFramework, MMTPConnection& aConnection,CMTPImageDataProvider& aDataProvider) :
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    CMTPRequestProcessor(aFramework, aConnection, sizeof(KMTPCopyObjectPolicy)/sizeof(TMTPRequestElementInfo), KMTPCopyObjectPolicy),
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    iFramework(aFramework),
0
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    iDataProvider(aDataProvider)
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    {
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    __FLOG_OPEN(KMTPSubsystem, KComponent);
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    }
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/**
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Second phase constructor
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*/
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void CMTPImageDpCopyObject::ConstructL()
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    {
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    __FLOG(_L8(">> CMTPImageDpCopyObject::ConstructL"));
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    iFileMan = CFileMan::NewL(iFramework.Fs());
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    iSrcObjectInfo = CMTPObjectMetaData::NewL();
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    iRollbackActionL.ReserveL(RollbackFuncCnt);
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    __FLOG(_L8("<< CMTPImageDpCopyObject::ConstructL"));
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    }
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TMTPResponseCode CMTPImageDpCopyObject::CheckRequestL()
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    {
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    __FLOG(_L8(">> CMTPImageDpCopyObject::CheckRequestL"));
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    TMTPResponseCode responseCode = CMTPRequestProcessor::CheckRequestL();
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    if (EMTPRespCodeOK == responseCode)
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        {
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        TUint32 objectHandle = Request().Uint32(TMTPTypeRequest::ERequestParameter1);
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        // Check whether object handle is valid
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        responseCode = MTPImageDpUtilits::VerifyObjectHandleL(iFramework, objectHandle, *iSrcObjectInfo);
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        }
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    else if(EMTPRespCodeInvalidObjectHandle == responseCode) //we only check the parent handle
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        {
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        responseCode = EMTPRespCodeInvalidParentObject;
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        }
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    __FLOG_VA((_L8("CheckRequestL - Exit with responseCode = 0x%04X"), responseCode));
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    __FLOG(_L8("<< CMTPImageDpCopyObject::CheckRequestL"));
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    return responseCode;
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    }
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/**
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CopyObject request handler
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*/      
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void CMTPImageDpCopyObject::ServiceL()
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    {   
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    __FLOG(_L8(">> CMTPImageDpCopyObject::ServiceL"));
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    TUint32 handle = KMTPHandleNone;
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    TMTPResponseCode responseCode = CopyObjectL(handle);
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    if(responseCode == EMTPRespCodeOK)
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        {
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        SendResponseL(EMTPRespCodeOK, 1, &handle);
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        }
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    else
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        {
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        SendResponseL(responseCode);
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        }
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    __FLOG(_L8("<< CMTPImageDpCopyObject::ServiceL"));
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    }
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/**
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Copy object operation
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@return the object handle of the resulting object.
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*/
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TMTPResponseCode CMTPImageDpCopyObject::CopyObjectL(TUint32& aNewHandle)
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    {
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    __FLOG(_L8(">> CMTPImageDpCopyObject::CopyObjectL"));
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    TMTPResponseCode responseCode = EMTPRespCodeOK;
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    aNewHandle = KMTPHandleNone;
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    GetParametersL();
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    iNewFileName.Append(*iDest);
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    const TDesC& oldFileName = iSrcObjectInfo->DesC(CMTPObjectMetaData::ESuid);
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    TParsePtrC fileNameParser(oldFileName);
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    if((iNewFileName.Length() + fileNameParser.NameAndExt().Length()) <= iNewFileName.MaxLength())
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        {
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        iNewFileName.Append(fileNameParser.NameAndExt());
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        responseCode = CanCopyObjectL(oldFileName, iNewFileName);	
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        }
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    else
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        {
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        responseCode = EMTPRespCodeGeneralError;
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        }
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    if(responseCode == EMTPRespCodeOK)
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        {
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        aNewHandle = CopyFileL(oldFileName, iNewFileName);
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        }
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    __FLOG(_L8("<< CMTPImageDpCopyObject::CopyObjectL"));
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    return responseCode;
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    }
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   179
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/**
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A helper function of CopyObjectL.
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@param aNewFileName the new full filename after copy.
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@return objectHandle of new copy of object.
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*/
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TUint32 CMTPImageDpCopyObject::CopyFileL(const TDesC& aOldFileName, const TDesC& aNewFileName)
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    {
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    __FLOG(_L8(">> CMTPImageDpCopyObject::CopyFileL"));
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    TCleanupItem anItem(FailRecover, reinterpret_cast<TAny*>(this));
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    CleanupStack::PushL(anItem);
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    GetPreviousPropertiesL(aOldFileName);
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    User::LeaveIfError(iFileMan->Copy(aOldFileName, *iDest));
32
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   193
    iRollbackActionL.AppendL(RollBackFromFsL);
0
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   194
    SetPreviousPropertiesL(aNewFileName);
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   195
    
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    iFramework.ObjectMgr().InsertObjectL(*iTargetObjectInfo);
11
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    //check object whether it is a new image object
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    if (MTPImageDpUtilits::IsNewPicture(*iTargetObjectInfo))
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   199
        {
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        //increate new pictures count
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   201
        iDataProvider.IncreaseNewPictures(1);
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   202
        }    
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   203
    
0
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    __FLOG(_L8("<< CMTPImageDpCopyObject::CopyFileL"));
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    CleanupStack::Pop(this);
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   206
    return iTargetObjectInfo->Uint(CMTPObjectMetaData::EHandle);
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   207
    }
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   208
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   209
/**
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Retrieve the parameters of the request
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   211
*/	
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void CMTPImageDpCopyObject::GetParametersL()
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    {
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    __FLOG(_L8(">> CMTPImageDpCopyObject::GetParametersL"));
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    __ASSERT_DEBUG(iRequestChecker, Panic(EMTPImageDpRequestCheckNull));
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    TUint32 objectHandle  = Request().Uint32(TMTPTypeRequest::ERequestParameter1);
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    iStorageId = Request().Uint32(TMTPTypeRequest::ERequestParameter2);
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    TUint32 parentObjectHandle  = Request().Uint32(TMTPTypeRequest::ERequestParameter3);       
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    if(parentObjectHandle == 0)
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        {
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        SetDefaultParentObjectL();
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        }
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    else	
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        {
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        CMTPObjectMetaData* parentObjectInfo = iRequestChecker->GetObjectInfo(parentObjectHandle);
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        __ASSERT_DEBUG(parentObjectInfo, Panic(EMTPImageDpObjectNull));
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        delete iDest;
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        iDest = NULL;
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        iDest = parentObjectInfo->DesC(CMTPObjectMetaData::ESuid).AllocL();        
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        iNewParentHandle = parentObjectHandle;
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        }
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   234
    __FLOG(_L8("<< CMTPImageDpCopyObject::GetParametersL"));	
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    }
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/**
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Get a default parent object, ff the request does not specify a parent object, 
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*/
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void CMTPImageDpCopyObject::SetDefaultParentObjectL()
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    {
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    __FLOG(_L8(">> CMTPImageDpCopyObject::SetDefaultParentObjectL"));
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    TDriveNumber drive(static_cast<TDriveNumber>(iFramework.StorageMgr().DriveNumber(iStorageId)));
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    User::LeaveIfError(drive);
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    TChar driveLetter;
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    iFramework.Fs().DriveToChar(drive, driveLetter);
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    TFileName driveBuf;
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    driveBuf.Append(driveLetter);
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    driveBuf = BaflUtils::RootFolderPath(driveBuf.Left(1));
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    delete iDest;
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    iDest = NULL;
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    iDest = driveBuf.AllocL();
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   253
    iNewParentHandle = KMTPHandleNoParent;
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    __FLOG(_L8("<< CMTPImageDpCopyObject::SetDefaultParentObjectL"));
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    }
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/**
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Check if we can copy the file to the new location
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*/
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TMTPResponseCode CMTPImageDpCopyObject::CanCopyObjectL(const TDesC& aOldName, const TDesC& aNewName) const
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    {
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    __FLOG(_L8(">> CMTPImageDpCopyObject::CanCopyObjectL"));
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    TMTPResponseCode result = EMTPRespCodeOK;
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    TEntry fileEntry;
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    User::LeaveIfError(iFramework.Fs().Entry(aOldName, fileEntry));
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    TDriveNumber drive(static_cast<TDriveNumber>(iFramework.StorageMgr().DriveNumber(iStorageId)));
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    User::LeaveIfError(drive);
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    TVolumeInfo volumeInfo;
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    User::LeaveIfError(iFramework.Fs().Volume(volumeInfo, drive));
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   272
    if(volumeInfo.iFree < fileEntry.FileSize())
0
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        {
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        result = EMTPRespCodeStoreFull;
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        }
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    else if (BaflUtils::FileExists(iFramework.Fs(), aNewName))			
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        {
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        result = EMTPRespCodeInvalidParentObject;
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        }
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    __FLOG_VA((_L8("CanCopyObjectL - Exit with response code 0x%04X"), result));
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    __FLOG(_L8("<< CMTPImageDpCopyObject::CanCopyObjectL"));  	
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    return result;	
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    }
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/**
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   286
Save the object properties before doing the copy
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*/
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void CMTPImageDpCopyObject::GetPreviousPropertiesL(const TDesC& aOldFileName)
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    {
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   290
    __FLOG(_L8("GetPreviousPropertiesL - Entry"));
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   291
    User::LeaveIfError(iFramework.Fs().Modified(aOldFileName, iDateModified));
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    __FLOG(_L8("GetPreviousPropertiesL - Exit"));
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   293
    }
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   294
    
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   295
/**
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   296
Set the object properties after doing the copy
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   297
*/
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   298
void CMTPImageDpCopyObject::SetPreviousPropertiesL(const TDesC& aNewFileName)
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   299
    {
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   300
    __FLOG(_L8("SetPreviousPropertiesL - Entry"));        
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   301
    User::LeaveIfError(iFramework.Fs().SetModified(aNewFileName, iDateModified));
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   302
    
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   303
    iTargetObjectInfo = CMTPObjectMetaData::NewL();
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   304
    iTargetObjectInfo->SetUint(CMTPObjectMetaData::EDataProviderId, iSrcObjectInfo->Uint(CMTPObjectMetaData::EDataProviderId));
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   305
    iTargetObjectInfo->SetUint(CMTPObjectMetaData::EFormatCode, iSrcObjectInfo->Uint(CMTPObjectMetaData::EFormatCode));
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diff changeset
   306
    iTargetObjectInfo->SetUint(CMTPObjectMetaData::EFormatSubCode, iSrcObjectInfo->Uint(CMTPObjectMetaData::EFormatSubCode));
0
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   307
    iTargetObjectInfo->SetDesCL(CMTPObjectMetaData::EName, iSrcObjectInfo->DesC(CMTPObjectMetaData::EName));
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diff changeset
   308
    iTargetObjectInfo->SetUint(CMTPObjectMetaData::ENonConsumable, iSrcObjectInfo->Uint(CMTPObjectMetaData::ENonConsumable));
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diff changeset
   309
    iTargetObjectInfo->SetUint(CMTPObjectMetaData::EParentHandle, iNewParentHandle);
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   310
    iTargetObjectInfo->SetUint(CMTPObjectMetaData::EStorageId, iStorageId);
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diff changeset
   311
    iTargetObjectInfo->SetDesCL(CMTPObjectMetaData::ESuid, aNewFileName);
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   312
    __FLOG(_L8("SetPreviousPropertiesL - Exit"));
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   313
    }
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diff changeset
   314
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   315
void CMTPImageDpCopyObject::FailRecover(TAny* aCopyOperation)
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   316
    {
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   317
    reinterpret_cast<CMTPImageDpCopyObject*>(aCopyOperation)->RollBack();
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   318
    }
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diff changeset
   319
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   320
void CMTPImageDpCopyObject::RollBack()
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diff changeset
   321
    {
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   322
    TInt i = iRollbackActionL.Count();
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   323
    while(-- i >= 0)
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   324
        {
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   325
        TRAP_IGNORE((*iRollbackActionL[i])(this));
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   326
        }
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   327
    iRollbackActionL.Reset();
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   328
    }
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diff changeset
   329
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void CMTPImageDpCopyObject::RollBackFromFsL()
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    {
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    User::LeaveIfError(iFramework.Fs().Delete(iNewFileName));
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    }
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void CMTPImageDpCopyObject::RollBackFromFsL(CMTPImageDpCopyObject* aObject)
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    {
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    aObject->RollBackFromFsL();
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    }
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// End of file
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