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// Copyright (c) 2007-2009 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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// CMsvPlainBodyText.cpp
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//
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#include <cmsvplainbodytext.h>
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#include "cmsvbodytext.h"
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#include <mmsvstoremanager.h>
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#include "MSVPANIC.H"
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#include <txtrich.h>
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#include <utf.h>
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#ifdef SYMBIAN_ENABLE_SPLIT_HEADERS
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#include "msvconsts.h"
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#endif
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/**
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The number of characters that will be converted to Unicode at any one time.
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*/
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const TInt KMaxDecodeUnicodeLength = 20;
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/**
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The NewL factory function for Write operation.
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@param aMsvStoreManager The MMsvStoreManager reference to call Store related RFile APIs
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@param aStore The CMsvStore object.
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@param aIs8Bit TBool indicating whether to store bdy text as 8/16 bit.
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@param aCharsetId The charset of the body part.
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@param aDefaultCharsetId The default charset of the system.
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@param aMessageId The Id of the message that is to be stored.
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@param aFs The RFs for handling RFile related operations.
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@return CMsvPlainBodyText.
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*/
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CMsvPlainBodyText* CMsvPlainBodyText::NewL(MMsvStoreManager& aMsvStoreManager, CMsvStore& aStore, TBool aIs8Bit, TUint aCharsetId, TUint aDefaultCharsetId, TMsvId aMessageId, RFs& aFs)
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{
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CMsvPlainBodyText* self = new(ELeave)CMsvPlainBodyText(aMsvStoreManager, aStore, aIs8Bit, aCharsetId, aDefaultCharsetId, aMessageId, aFs);
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CleanupStack::PushL(self);
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self->ConstructWriteL();
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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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Overloaded NewL for Read operation.
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@param aMsvStoreManager The MMsvStoreManager reference to call Store related RFile APIs
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@param aStore The CMsvStore object.
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@param aMessageId The Id of the message that is to be stored.
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@param aFs The RFs for handling RFile related operations.
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@param aChunkLength The length of the chunk that will be stored/restored in single operaion
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@return CMsvPlainBodyText.
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*/
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CMsvPlainBodyText* CMsvPlainBodyText::NewL(MMsvStoreManager& aMsvStoreManager, CMsvStore& aStore, TMsvId aMessageId, RFs& aFs, TInt aChunkLength)
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{
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CMsvPlainBodyText* self = new(ELeave)CMsvPlainBodyText(aMsvStoreManager, aStore, aMessageId, aFs, aChunkLength);
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CleanupStack::PushL(self);
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self->ConstructReadL();
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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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Default Constructor for write operation.
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*/
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CMsvPlainBodyText::CMsvPlainBodyText(MMsvStoreManager& aMsvStoreManager, CMsvStore& aStore, TBool aIs8Bit, TUint aCharsetId, TUint aDefaultCharsetId, TMsvId aMessageId,RFs& aFs)
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: CMsgActive(EPriorityNormal), iMsvStoreManager(aMsvStoreManager), iStore(aStore), iIs8Bit(aIs8Bit), iCharsetId(aCharsetId), iDefaultCharsetId(aDefaultCharsetId),
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iMessageId(aMessageId), iFSession(aFs), iMsvFileStatus(EMsvFileWriting)
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{
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iAvailable = CCnvCharacterSetConverter::ENotAvailable;
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CActiveScheduler::Add(this);
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}
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/**
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Default Constructor called for Read operation..
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*/
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CMsvPlainBodyText::CMsvPlainBodyText(MMsvStoreManager& aMsvStoreManager, CMsvStore& aStore, TMsvId aMessageId, RFs& aFs, TInt aChunkLength)
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: CMsgActive(EPriorityNormal), iMsvStoreManager(aMsvStoreManager), iStore(aStore), iMessageId(aMessageId), iFSession(aFs), iPos(0), iChunkMaxLength(aChunkLength),
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iStartPosOfNextChunk(0), iMsvFileStatus(EMsvFileReading)
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{
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iAvailable = CCnvCharacterSetConverter::ENotAvailable;
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CActiveScheduler::Add(this);
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}
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/**
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ConstructWriteL for creating and writing to the plain bodytext file.
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*/
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void CMsvPlainBodyText::ConstructWriteL()
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{
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RMsvWriteStream out;
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if(iIs8Bit)
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{
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out.AssignLC(iStore, KMsvPlainBodyText8);
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out.WriteUint32L(iCharsetId);
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out.WriteUint32L(iDefaultCharsetId);
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}
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else
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{
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out.AssignLC(iStore, KMsvPlainBodyText16);
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}
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// iIsCommitted will be EFalse at this point.
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out.WriteUint32L(iIsCommitted);
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TBuf<KFileNameFixedWidth> fileName;
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fileName.NumFixedWidth(iMessageId, EHex, KFileNameFixedWidth);
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out << (TDes&)fileName;
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out.CommitL();
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out.Close();
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iStore.CommitL();
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iMsvStoreManager.CreatePlainTextFileL(iFile, iMessageId);
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iRemainingConvertedData.Create(KMaxDecodeUnicodeLength);
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CleanupStack::PopAndDestroy(&out);
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}
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/**
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ConstructL for Read operation.
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*/
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void CMsvPlainBodyText::ConstructReadL()
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{
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// Check whether the data is stored in old-style non-chunk storage mechanism.
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if(iStore.IsPresentL(KMsvEntryRichTextBody) || iStore.IsPresentL(KMsv8BitEncodedBodyData))
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{
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iParaLayer = CParaFormatLayer::NewL();
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iCharLayer = CCharFormatLayer::NewL();
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iRichText = CRichText::NewL(iParaLayer, iCharLayer);
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iStore.RestoreBodyTextL(*iRichText);
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}
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else // Data is stored using the new chunk storage mechanism.
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{
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RMsvReadStream in;
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if(iStore.IsPresentL(KMsvPlainBodyText8))
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{
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in.OpenLC(iStore, KMsvPlainBodyText8);
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iCharsetId = in.ReadUint32L();
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iDefaultCharsetId = in.ReadUint32L();
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iIs8Bit = ETrue;
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}
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else if(iStore.IsPresentL(KMsvPlainBodyText16))
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{
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in.OpenLC(iStore, KMsvPlainBodyText16);
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}
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else
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{
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// The stream is not found.
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User::Leave(KErrNotFound);
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}
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iIsCommitted = in.ReadUint32L();
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HBufC* filename = HBufC::NewLC(in,KMaxFileName);
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iFilePath = HBufC::NewL(KMaxFileName);
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TPtr16 fileNamePtr = iFilePath->Des();
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iMsvStoreManager.BodyTextFilePathL(iMessageId, fileNamePtr);
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fileNamePtr.Append(*filename);
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iMsvStoreManager.OpenBodyTextFileForReadL(iFile, iMessageId, *iFilePath);
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iRemainingConvertedData.Create(KMaxDecodeUnicodeLength);
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CleanupStack::PopAndDestroy(2,&in);// filename, in
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}
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}
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/**
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Destructor
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*/
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EXPORT_C CMsvPlainBodyText::~CMsvPlainBodyText()
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{
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delete iConverter;
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delete iParaLayer;
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delete iCharLayer;
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delete iRichText;
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delete iFilePath;
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iTempChunk16.Close();
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iRemainingConvertedData.Close();
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iStartPosOfEachChunkInFile.Close();
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iRfileReadBuf8.Close();
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// Cannot leave in destructor, so ignore any error.
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// iFile will be closed by a call to RevertL method.
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TRAP_IGNORE(RevertL());
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}
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/**
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Store the plain body text part in chunks.
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@param aChunk. The 8 bit chunk that is to be stored.
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@param aStatus. The TRequestStatus parameter for this request.
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@leave KErrAccessDenied. If CMsvStore was opened in Read mode or
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If CommitL is already called.
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@leave Other Standard system-wide error codes.
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@return void.
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*/
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EXPORT_C void CMsvPlainBodyText::StoreChunkL(const TDesC8& aChunk, TRequestStatus& aStatus)
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{
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iTempChunk16.Close();
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if(iIsCommitted || iMsvFileStatus == EMsvFileReading)
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{
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// Leave if CommitL is already called or CMsvStore is opened in Read mode.
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User::Leave(KErrAccessDenied);
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}
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if(iIs8Bit)
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{
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iFile.Write(aChunk, aStatus);
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}
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// convert to 16..........
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else
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{
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ConvertChunkToUnicodeForStoreL(aChunk);
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iFile.Write(iRfileWritePtr8, aStatus);
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}
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}
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/**
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Store the plain body text part in chunks,synchronous version.
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@param aChunk. The 8 bit chunk that is to be stored.
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@leave KErrAccessDenied. If CMsvStore was opened in Read mode or
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If CommitL is already called.
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@leave Other Standard system-wide error codes.
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@return void.
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*/
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EXPORT_C void CMsvPlainBodyText::StoreChunkL(const TDesC8& aChunk)
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{
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iTempChunk16.Close();
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if(iIsCommitted || iMsvFileStatus == EMsvFileReading)
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{
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// Leave if CommitL is already called or CMsvStore is opened in Read mode.
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User::Leave(KErrAccessDenied);
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}
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if(iIs8Bit)
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{
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User::LeaveIfError(iFile.Write(aChunk));
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}
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else
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{
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ConvertChunkToUnicodeForStoreL(aChunk);
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User::LeaveIfError(iFile.Write(iRfileWritePtr8));
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}
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}
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/**
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Converts the 8 bit chunk to Unicode.
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@param aChunk The 8bit chunk to be converted.
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@return void.
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*/
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void CMsvPlainBodyText::ConvertChunkToUnicodeForStoreL(const TDesC8& aChunk)
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{
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TInt chunkLength = aChunk.Length();
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TPtrC8 chunkPtr8(aChunk);
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iTempChunk16.Create(chunkLength);
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PrepareToConvertL();
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TInt charsetState = CCnvCharacterSetConverter::KStateDefault;
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if (iAvailable == CCnvCharacterSetConverter::ENotAvailable)
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{
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// Copy data if character convertor not available
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iTempChunk16.Copy(chunkPtr8);
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}
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else
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{
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TInt rem = iConverter->ConvertToUnicode(iTempChunk16, chunkPtr8, charsetState);
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if (rem < 0)
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{
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// Copy the data without conversion,if there was error while converting.
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iTempChunk16.Copy(aChunk);
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}
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else if(rem > 0)
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{
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// Some of the characters were not converted because the output buffer
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// was not long enough, so reallocate the output buffer.
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do
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{
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TBuf<KMaxDecodeUnicodeLength> buf;
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chunkPtr8.Set(chunkPtr8.Right(rem));
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rem = iConverter->ConvertToUnicode(buf, chunkPtr8, charsetState);
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if(iTempChunk16.Length() + buf.Length() > iTempChunk16.MaxLength())
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{
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iTempChunk16.ReAllocL(iTempChunk16.Length() + buf.Length());
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}
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iTempChunk16.Append(buf);
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}while(rem > 0);
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}
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}
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TPtrC8 convertedChunk8((TUint8*)(iTempChunk16.Ptr()), iTempChunk16.Length()*2);
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iRfileWritePtr8.Set(convertedChunk8);
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}
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/**
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Store the body part in chunks(16 bit version).
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@param aChunk The 16 bit chunk that is to be stored.
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@param aStatus The TRequestStatus parameter for this request.
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@leave KErrNotSupported If the 8-bit storage was enabled.
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@leave KErrAccessDenied If CMsvStore was opened in Read mode or
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IfCommitL is already called.
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@leave Other Standard system-wide error codes.
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@return void
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*/
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EXPORT_C void CMsvPlainBodyText::StoreChunkL(const TDesC16& aChunk, TRequestStatus& aStatus)
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{
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if(iIs8Bit)
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{
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User::Leave(KErrNotSupported);
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}
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if(iIsCommitted || iMsvFileStatus == EMsvFileReading)
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{
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// Leave if CommitL is already called or CMsvStore is opened in Read mode.
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User::Leave(KErrAccessDenied);
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}
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TPtrC8 inFileBuf8((TUint8*)(aChunk.Ptr()), aChunk.Length()*2);
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iFile.Write(inFileBuf8, aStatus);
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}
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/**
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Store the body part in chunks(16 bit synchronous version).
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@param aChunk The 16 bit chunk that is to be stored.
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@leave KErrNotSupported If the 8-bit storage was enabled.
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@leave KErrAccessDenied If CMsvStore was opened in Read mode or
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If CommitL is already called.
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@leave Other Standard system-wide error codes.
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@return void
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*/
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EXPORT_C void CMsvPlainBodyText::StoreChunkL(const TDesC16& aChunk)
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{
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if(iIs8Bit)
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{
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User::Leave(KErrNotSupported);
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}
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if(iIsCommitted || iMsvFileStatus == EMsvFileReading)
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{
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// Leave if CommitL is already called or CMsvStore is opened in Read mode.
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User::Leave(KErrAccessDenied);
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}
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345 |
|
|
|
346 |
TPtrC8 inFileBuf8((TUint8*)(aChunk.Ptr()), aChunk.Length()*2);
|
|
|
347 |
User::LeaveIfError(iFile.Write(inFileBuf8));
|
|
|
348 |
}
|
|
|
349 |
|
|
|
350 |
/**
|
|
|
351 |
Returns the size of body text in bytes.
|
|
|
352 |
@param None.
|
|
|
353 |
@return TInt The size of the plain body text stored in bytes.
|
|
|
354 |
*/
|
|
|
355 |
EXPORT_C TInt CMsvPlainBodyText::Size()
|
|
|
356 |
{
|
|
|
357 |
TInt size=0;
|
|
|
358 |
if(iRichText)
|
|
|
359 |
{
|
|
|
360 |
size = iRichText->DocumentLength() * 2;// Since Unicode multiply by 2.
|
|
|
361 |
}
|
|
|
362 |
else
|
|
|
363 |
{
|
|
|
364 |
iFile.Size(size);
|
|
|
365 |
}
|
|
|
366 |
return size;
|
|
|
367 |
}
|
|
|
368 |
|
|
|
369 |
/**
|
|
|
370 |
Converts and stores the CRichText contents to a plain text.
|
|
|
371 |
@param aRichText The CRichText object that will be stored as plain body text.
|
|
|
372 |
@leave KErrNotSupported If CMsvStore was opened in Read mode or
|
|
|
373 |
If CommitL is already called.
|
|
|
374 |
@leave Other Standard system-wide error codes.
|
|
|
375 |
@return void.
|
|
|
376 |
*/
|
|
|
377 |
EXPORT_C void CMsvPlainBodyText::StoreRichTextAsPlainTextL(CRichText& aRichText)
|
|
|
378 |
{
|
|
|
379 |
if(iIs8Bit)
|
|
|
380 |
{
|
|
|
381 |
User::Leave(KErrNotSupported);
|
|
|
382 |
}
|
|
|
383 |
if(iIsCommitted || iMsvFileStatus == EMsvFileReading)
|
|
|
384 |
{
|
|
|
385 |
// Leave if CommitL is already called or CMsvStore is opened in Read mode.
|
|
|
386 |
User::Leave(KErrAccessDenied);
|
|
|
387 |
}
|
|
|
388 |
// create a buffer of 512 bytes to extract data from a rich text instead of extracting
|
|
|
389 |
// the entire richtext so that 2 copies of the mail is not created in RAM.
|
|
|
390 |
TBuf<KMsvDecodeChunkLength> richBuf;
|
|
|
391 |
TInt currentPos = 0;
|
|
|
392 |
TInt richTextLen = aRichText.DocumentLength();
|
|
|
393 |
TInt lengthToExtract = richTextLen;
|
|
|
394 |
while(richTextLen > 0)
|
|
|
395 |
{
|
|
|
396 |
if(lengthToExtract > KMsvDecodeChunkLength)
|
|
|
397 |
{
|
|
|
398 |
lengthToExtract = KMsvDecodeChunkLength;
|
|
|
399 |
}
|
|
|
400 |
aRichText.Extract(richBuf,currentPos,lengthToExtract);
|
|
|
401 |
TPtrC8 richTextPtr1((TUint8*)(richBuf.Ptr()), richBuf.Length() * 2);
|
|
|
402 |
User::LeaveIfError(iFile.Write(richTextPtr1));
|
|
|
403 |
currentPos += lengthToExtract;
|
|
|
404 |
richTextLen -=lengthToExtract;
|
|
|
405 |
if(richTextLen <= lengthToExtract)
|
|
|
406 |
{
|
|
|
407 |
lengthToExtract = richTextLen;
|
|
|
408 |
}
|
|
|
409 |
}
|
|
|
410 |
}
|
|
|
411 |
|
|
|
412 |
/**
|
|
|
413 |
Retrieve the next chunk of the plain body text.
|
|
|
414 |
@param aChunk The output parameter contains the requested chunk.
|
|
|
415 |
@param aStatus. The TRequestStatus for this request.
|
|
|
416 |
@leave KErrAccessDenied If CMsvStore was opened in Write mode.
|
|
|
417 |
@leave KErrNotSupported If 16-bit storage is enabled.
|
|
|
418 |
@leave KErrUnderflow If aChunk MaxLength is less than iChunkMaxLength.
|
|
|
419 |
@leave Other Standard system-wide error codes.
|
|
|
420 |
@return void
|
|
|
421 |
*/
|
|
|
422 |
EXPORT_C void CMsvPlainBodyText::NextChunkL(TDes8& aChunk, TRequestStatus& aStatus)
|
|
|
423 |
{
|
|
|
424 |
if(!iIs8Bit)
|
|
|
425 |
{
|
|
|
426 |
// If 16-bit storage is enabled.
|
|
|
427 |
User::Leave(KErrNotSupported);
|
|
|
428 |
}
|
|
|
429 |
if(iMsvFileStatus == EMsvFileWriting)
|
|
|
430 |
{
|
|
|
431 |
// Leave if CMsvStore is opened in Write mode.
|
|
|
432 |
User::Leave(KErrAccessDenied);
|
|
|
433 |
}
|
|
|
434 |
if(aChunk.MaxLength() < iChunkMaxLength)
|
|
|
435 |
{
|
|
|
436 |
User::Leave(KErrUnderflow);
|
|
|
437 |
}
|
|
|
438 |
|
|
|
439 |
iChunk8 = &aChunk;
|
|
|
440 |
iChunk8->SetLength(0);
|
|
|
441 |
|
|
|
442 |
iRetrieving8bit = ETrue;
|
|
|
443 |
|
|
|
444 |
//store the current position of the file so that if request cancels and for next
|
|
|
445 |
// call to NextChunkL() will attempt to read the same chunk that was cancelled
|
|
|
446 |
iCurrentFilePos = 0;
|
|
|
447 |
User::LeaveIfError(iFile.Seek(ESeekCurrent, iCurrentFilePos));
|
|
|
448 |
|
|
|
449 |
Queue(aStatus);
|
|
|
450 |
iFile.Read(aChunk, iChunkMaxLength, iStatus);
|
|
|
451 |
SetActive();
|
|
|
452 |
}
|
|
|
453 |
|
|
|
454 |
/**
|
|
|
455 |
Retrieve the next chunk of the plain body text.
|
|
|
456 |
@param aChunk The output parameter contains the requested chunk.
|
|
|
457 |
@leave KErrNotSupported If CMsvStore was opened in Write mode.
|
|
|
458 |
@leave KErrNotSupported If 16-bit storage is enabled.
|
|
|
459 |
@leave KErrUnderflow If aChunk MaxLength is less than iChunkMaxLength.
|
|
|
460 |
@leave Other Standard system-wide error codes.
|
|
|
461 |
@return void
|
|
|
462 |
*/
|
|
|
463 |
EXPORT_C void CMsvPlainBodyText::NextChunkL(TDes8& aChunk)
|
|
|
464 |
{
|
|
|
465 |
if(!iIs8Bit)
|
|
|
466 |
{
|
|
|
467 |
// If 16-bit storage is enabled.
|
|
|
468 |
User::Leave(KErrNotSupported);
|
|
|
469 |
}
|
|
|
470 |
if(iMsvFileStatus == EMsvFileWriting)
|
|
|
471 |
{
|
|
|
472 |
// Leave if CMsvStore is opened in Write mode.
|
|
|
473 |
User::Leave(KErrAccessDenied);
|
|
|
474 |
}
|
|
|
475 |
if(aChunk.MaxLength() < iChunkMaxLength)
|
|
|
476 |
{
|
|
|
477 |
User::Leave(KErrUnderflow);
|
|
|
478 |
}
|
|
|
479 |
aChunk.SetLength(0);
|
|
|
480 |
User::LeaveIfError(iFile.Read(aChunk, iChunkMaxLength));
|
|
|
481 |
|
|
|
482 |
if(aChunk.Length()>0)
|
|
|
483 |
{
|
|
|
484 |
iReadChunkLength = aChunk.Length();
|
|
|
485 |
}
|
|
|
486 |
}
|
|
|
487 |
|
|
|
488 |
/**
|
|
|
489 |
Retrieve the next chunk of the plain body text. If body is stored as 8bit, the chunk is
|
|
|
490 |
converted to unicode.Unconverted bytes will be converted while reading the next chunk.
|
|
|
491 |
@param aChunk The output parameter contains the requested chunk.If no more data is in Store this
|
|
|
492 |
contains NULL descriptor.
|
|
|
493 |
@param aStatus The TRequestStatus for this request.
|
|
|
494 |
@leave KErrAccessDenied If CMsvStore was opened in Write mode.
|
|
|
495 |
@leave KErrUnderflow If aChunk MaxLength is less than iChunkMaxLength.
|
|
|
496 |
@leave Other Standard system-wide error codes.
|
|
|
497 |
@return void
|
|
|
498 |
*/
|
|
|
499 |
EXPORT_C void CMsvPlainBodyText::NextChunkL(TDes16& aChunk, TRequestStatus& aStatus)
|
|
|
500 |
{
|
|
|
501 |
if(iMsvFileStatus == EMsvFileWriting)
|
|
|
502 |
{
|
|
|
503 |
// Leave if CMsvStore is opened in Write mode.
|
|
|
504 |
User::Leave(KErrAccessDenied);
|
|
|
505 |
}
|
|
|
506 |
|
|
|
507 |
if(aChunk.MaxLength() < iChunkMaxLength)
|
|
|
508 |
{
|
|
|
509 |
User::Leave(KErrUnderflow);
|
|
|
510 |
}
|
|
|
511 |
|
|
|
512 |
if(iRichText)
|
|
|
513 |
{
|
|
|
514 |
ExtractNextChunkFromRichText(aChunk);
|
|
|
515 |
TRequestStatus *status=&aStatus;
|
|
|
516 |
User::RequestComplete(status, KErrNone);
|
|
|
517 |
}
|
|
|
518 |
else
|
|
|
519 |
{
|
|
|
520 |
iRfileReadBuf8.Close();
|
|
|
521 |
iChunk16 = &aChunk;
|
|
|
522 |
iChunk16->SetLength(0);
|
|
|
523 |
|
|
|
524 |
//store the current position of the file so that if request cancels and for next
|
|
|
525 |
// call to NextChunkL() will attempt to read the same chunk that was cancelled
|
|
|
526 |
iCurrentFilePos = 0;
|
|
|
527 |
User::LeaveIfError(iFile.Seek(ESeekCurrent, iCurrentFilePos));
|
|
|
528 |
|
|
|
529 |
Queue(aStatus);
|
|
|
530 |
if(iIs8Bit)
|
|
|
531 |
{
|
|
|
532 |
// if there is any converted data then append to aChunk
|
|
|
533 |
if(iRemainingConvertedData.Length() != 0)
|
|
|
534 |
{
|
|
|
535 |
iChunk16->Append(iRemainingConvertedData);
|
|
|
536 |
iRemainingConvertedData.SetLength(0);
|
|
|
537 |
}
|
|
|
538 |
|
|
|
539 |
iRfileReadBuf8.Create(iChunkMaxLength);
|
|
|
540 |
// 8-bit data read will be converted to Unicode in DoRunL.
|
|
|
541 |
iFile.Read(iRfileReadBuf8, iChunkMaxLength, iStatus);
|
|
|
542 |
SetActive();
|
|
|
543 |
}
|
|
|
544 |
else
|
|
|
545 |
{
|
|
|
546 |
iRfileReadBuf8.Create(iChunkMaxLength*2);
|
|
|
547 |
iFile.Read(iRfileReadBuf8, iChunkMaxLength*2, iStatus);
|
|
|
548 |
SetActive();
|
|
|
549 |
}
|
|
|
550 |
}
|
|
|
551 |
}
|
|
|
552 |
|
|
|
553 |
/**
|
|
|
554 |
Retrieve the next chunk of the plain body text. If body is stored as 8bit, convert the chunk to Unicode.
|
|
|
555 |
Unconverted bytes will be converted while reading the next chunk.
|
|
|
556 |
@param aChunk The output parameter contains the requested chunk.If no more data is in Store this
|
|
|
557 |
contains NULL descriptor.
|
|
|
558 |
@leave KErrAccessDenied If CMsvStore was opened in Write mode.
|
|
|
559 |
@leave KErrUnderflow If aChunk MaxLength is less than iChunkMaxLength.
|
|
|
560 |
@leave Other Standard system-wide error codes.
|
|
|
561 |
@return void
|
|
|
562 |
*/
|
|
|
563 |
EXPORT_C void CMsvPlainBodyText::NextChunkL(TDes16& aChunk)
|
|
|
564 |
{
|
|
|
565 |
if(iMsvFileStatus == EMsvFileWriting)
|
|
|
566 |
{
|
|
|
567 |
// Leave if CMsvStore is opened in Write mode.
|
|
|
568 |
User::Leave(KErrAccessDenied);
|
|
|
569 |
}
|
|
|
570 |
|
|
|
571 |
if(aChunk.MaxLength() < iChunkMaxLength)
|
|
|
572 |
{
|
|
|
573 |
User::Leave(KErrUnderflow);
|
|
|
574 |
}
|
|
|
575 |
|
|
|
576 |
if(iRichText)
|
|
|
577 |
{
|
|
|
578 |
ExtractNextChunkFromRichText(aChunk);
|
|
|
579 |
}
|
|
|
580 |
else if(iIs8Bit)
|
|
|
581 |
{
|
|
|
582 |
iRfileReadBuf8.Close();
|
|
|
583 |
iChunk16 = &aChunk;
|
|
|
584 |
|
|
|
585 |
iChunk16->SetLength(0);
|
|
|
586 |
|
|
|
587 |
TInt numOfBytesInCurrentChunk = 0;
|
|
|
588 |
// if there is any converted data then append to aChunk
|
|
|
589 |
if(iRemainingConvertedData.Length() != 0)
|
|
|
590 |
{
|
|
|
591 |
iChunk16->Append(iRemainingConvertedData);
|
|
|
592 |
iRemainingConvertedData.SetLength(0);
|
|
|
593 |
}
|
|
|
594 |
|
|
|
595 |
PrepareToConvertL();
|
|
|
596 |
if(iAvailable != CCnvCharacterSetConverter::EAvailable)
|
|
|
597 |
{
|
|
|
598 |
User::Leave(KErrNotSupported);
|
|
|
599 |
}
|
|
|
600 |
|
|
|
601 |
iIsLastChunk = EFalse;
|
|
|
602 |
while(iChunk16->Length() < iChunkMaxLength && !iIsLastChunk)
|
|
|
603 |
{
|
|
|
604 |
iRfileReadBuf8.Create(iChunkMaxLength);
|
|
|
605 |
iFile.Read(iRfileReadBuf8, iChunkMaxLength);
|
|
|
606 |
// iRfileReadBuf8 will be closed when ConvertChunkToUnicodeForRestoreL returns.
|
|
|
607 |
numOfBytesInCurrentChunk = ConvertChunkToUnicodeForRestoreL();
|
|
|
608 |
}
|
|
|
609 |
|
|
|
610 |
// Push start position of current chunk in to the stack.
|
|
|
611 |
iStartPosOfEachChunkInFile.Append(iStartPosOfNextChunk);
|
|
|
612 |
iStartPosOfNextChunk += numOfBytesInCurrentChunk;
|
|
|
613 |
iReadChunkLength = numOfBytesInCurrentChunk;
|
|
|
614 |
}
|
|
|
615 |
else // KMsvPlainBodyText16
|
|
|
616 |
{
|
|
|
617 |
HBufC8* inBuffer = HBufC8::NewLC(iChunkMaxLength * 2);
|
|
|
618 |
TPtr8 inPtr16(inBuffer->Des());
|
|
|
619 |
iFile.Read(inPtr16, iChunkMaxLength * 2); // Multiply by 2 to get no of bytes.
|
|
|
620 |
TPtrC16 ptr16((TUint16*)(inBuffer->Ptr()), inBuffer->Length() / 2);
|
|
|
621 |
aChunk.Copy(ptr16);
|
|
|
622 |
CleanupStack::PopAndDestroy(inBuffer);
|
|
|
623 |
if(aChunk.Length())
|
|
|
624 |
{
|
|
|
625 |
iReadChunkLength = aChunk.Length();
|
|
|
626 |
}
|
|
|
627 |
|
|
|
628 |
}
|
|
|
629 |
}
|
|
|
630 |
|
|
|
631 |
/**
|
|
|
632 |
Extracts a chunk of iChunkMaxLength or less, from the CRichText object.
|
|
|
633 |
*/
|
|
|
634 |
void CMsvPlainBodyText::ExtractNextChunkFromRichText(TDes16& aChunk)
|
|
|
635 |
{
|
|
|
636 |
TInt docLength = iRichText->DocumentLength();
|
|
|
637 |
// If we are at the end of the body text.
|
|
|
638 |
if(iPos >= docLength)
|
|
|
639 |
{
|
|
|
640 |
aChunk.Copy(KNullDesC16);
|
|
|
641 |
}
|
|
|
642 |
else
|
|
|
643 |
{
|
|
|
644 |
if(iPos+iChunkMaxLength <= docLength)
|
|
|
645 |
{
|
|
|
646 |
iRichText->Extract(aChunk, iPos, iChunkMaxLength);
|
|
|
647 |
iPos += iChunkMaxLength;
|
|
|
648 |
iReadChunkLength = iChunkMaxLength;
|
|
|
649 |
}
|
|
|
650 |
else // If it is the last chunk.
|
|
|
651 |
{
|
|
|
652 |
iRichText->Extract(aChunk, iPos, docLength-iPos);
|
|
|
653 |
iReadChunkLength = docLength-iPos;
|
|
|
654 |
iPos = docLength;
|
|
|
655 |
}
|
|
|
656 |
}
|
|
|
657 |
}
|
|
|
658 |
|
|
|
659 |
/**
|
|
|
660 |
Retrieve the previous chunk of the plain body text asynchronously.
|
|
|
661 |
@param aChunk The output parameter containing the requested chunk on completion.
|
|
|
662 |
@param aStatus The TRequestStatus for this request.
|
|
|
663 |
@leave KErrNotSupported If 16-bit storage is enabled.
|
|
|
664 |
@leave KErrAccessDenied If CMsvStore was opened in Write mode.
|
|
|
665 |
@leave KErrUnderflow If aChunk MaxLength is less than iChunkMaxLength.
|
|
|
666 |
@leave Other Standard system-wide error codes.
|
|
|
667 |
@return void
|
|
|
668 |
*/
|
|
|
669 |
EXPORT_C void CMsvPlainBodyText::PreviousChunkL(TDes8& aChunk, TRequestStatus& aStatus)
|
|
|
670 |
{
|
|
|
671 |
TInt currentPos = 0;
|
|
|
672 |
User::LeaveIfError(iFile.Seek(ESeekCurrent, currentPos));
|
|
|
673 |
|
|
|
674 |
// point to the position from where previous chunk was read.
|
|
|
675 |
currentPos -= iReadChunkLength;
|
|
|
676 |
// point to the position from where the new chunk is to be read.
|
|
|
677 |
currentPos -= iChunkMaxLength;
|
|
|
678 |
|
|
|
679 |
if(currentPos >= 0)
|
|
|
680 |
{
|
|
|
681 |
iFile.Seek(ESeekStart, currentPos);
|
|
|
682 |
NextChunkL(aChunk, aStatus);
|
|
|
683 |
}
|
|
|
684 |
else
|
|
|
685 |
{
|
|
|
686 |
aChunk.Copy(KNullDesC8);
|
|
|
687 |
TRequestStatus *status = &aStatus;
|
|
|
688 |
User::RequestComplete(status, KErrNone);
|
|
|
689 |
}
|
|
|
690 |
}
|
|
|
691 |
|
|
|
692 |
/**
|
|
|
693 |
Retrieve the previous chunk of the plain body text.
|
|
|
694 |
@param aChunk The output parameter containing the requested chunk.
|
|
|
695 |
@leave KErrNotSupported If 16-bit storage is enabled.
|
|
|
696 |
@leave KErrAccessDenied If CMsvStore was opened in Write mode.
|
|
|
697 |
@leave KErrUnderflow If aChunk MaxLength is less than iChunkMaxLength.
|
|
|
698 |
@leave Other Standard system-wide error codes.
|
|
|
699 |
@return void
|
|
|
700 |
*/
|
|
|
701 |
EXPORT_C void CMsvPlainBodyText::PreviousChunkL(TDes8& aChunk)
|
|
|
702 |
{
|
|
|
703 |
TInt currentPos = 0;
|
|
|
704 |
iFile.Seek(ESeekCurrent, currentPos);
|
|
|
705 |
|
|
|
706 |
// point to the position from where previous chunk was read.
|
|
|
707 |
currentPos -= iReadChunkLength;
|
|
|
708 |
// point to the position from where the new chunk is to be read.
|
|
|
709 |
currentPos -= iChunkMaxLength;
|
|
|
710 |
|
|
|
711 |
if(currentPos >= 0)
|
|
|
712 |
{
|
|
|
713 |
iFile.Seek(ESeekStart, currentPos );
|
|
|
714 |
NextChunkL(aChunk);
|
|
|
715 |
}
|
|
|
716 |
else
|
|
|
717 |
{
|
|
|
718 |
aChunk.Copy(KNullDesC8);
|
|
|
719 |
}
|
|
|
720 |
}
|
|
|
721 |
|
|
|
722 |
/**
|
|
|
723 |
Retrieve the previous chunk of the plain body text asynchronously.DoRunl converts the chunk to unicode.
|
|
|
724 |
@param aChunk The output parameter containing the requested chunk on completion.
|
|
|
725 |
@param aStatus The TRequestStatus for this request.
|
|
|
726 |
@leave KErrNotSupported If CMsvStore was opened in Write mode.
|
|
|
727 |
@leave KErrUnderflow If aChunk MaxLength is less than iChunkMaxLength.
|
|
|
728 |
@leave Other Standard system-wide error codes.
|
|
|
729 |
@return void
|
|
|
730 |
*/
|
|
|
731 |
EXPORT_C void CMsvPlainBodyText::PreviousChunkL(TDes16& aChunk, TRequestStatus& aStatus)
|
|
|
732 |
{
|
|
|
733 |
iPrevChunk = ETrue;
|
|
|
734 |
if(iRichText)
|
|
|
735 |
{
|
|
|
736 |
ExtractPreviousChunkFromRichText(aChunk);
|
|
|
737 |
TRequestStatus *status = &aStatus;
|
|
|
738 |
User::RequestComplete(status, KErrNone);
|
|
|
739 |
}
|
|
|
740 |
else
|
|
|
741 |
{
|
|
|
742 |
if(iIs8Bit && iStartPosOfEachChunkInFile.Count() >= 2)
|
|
|
743 |
{
|
|
|
744 |
delete iRemainingUnConvertedData;
|
|
|
745 |
iRemainingUnConvertedData = NULL;
|
|
|
746 |
TInt count = iStartPosOfEachChunkInFile.Count() - 1;
|
|
|
747 |
TInt numOfBytes = iStartPosOfEachChunkInFile[count] - iStartPosOfEachChunkInFile[count - 1];
|
|
|
748 |
iFile.Seek(ESeekStart, iStartPosOfEachChunkInFile[count - 1] );
|
|
|
749 |
iReadChunkLength = numOfBytes;
|
|
|
750 |
NextChunkL(aChunk,aStatus);
|
|
|
751 |
}
|
|
|
752 |
else
|
|
|
753 |
{
|
|
|
754 |
TInt startPos = 0;
|
|
|
755 |
TInt currentPos = 0;
|
|
|
756 |
User::LeaveIfError(iFile.Seek(ESeekCurrent, currentPos));
|
|
|
757 |
TInt prevChunkPos = 0;
|
|
|
758 |
if(currentPos > 0)
|
|
|
759 |
{
|
|
|
760 |
startPos = currentPos - iReadChunkLength * 2;
|
|
|
761 |
if(startPos > 0)
|
|
|
762 |
{
|
|
|
763 |
prevChunkPos = startPos - iChunkMaxLength * 2;
|
|
|
764 |
if(prevChunkPos >= 0)
|
|
|
765 |
{
|
|
|
766 |
iFile.Seek(ESeekStart, prevChunkPos);
|
|
|
767 |
NextChunkL(aChunk,aStatus);
|
|
|
768 |
}
|
|
|
769 |
else
|
|
|
770 |
{
|
|
|
771 |
iChunk16->Copy(KNullDesC16);
|
|
|
772 |
TRequestStatus *status = &aStatus;
|
|
|
773 |
User::RequestComplete(status, KErrNone);
|
|
|
774 |
}
|
|
|
775 |
}
|
|
|
776 |
else
|
|
|
777 |
{
|
|
|
778 |
aChunk.Copy(KNullDesC16);
|
|
|
779 |
TRequestStatus *status = &aStatus;
|
|
|
780 |
User::RequestComplete(status, KErrNone);
|
|
|
781 |
}
|
|
|
782 |
}
|
|
|
783 |
else
|
|
|
784 |
{
|
|
|
785 |
aChunk.Copy(KNullDesC16);
|
|
|
786 |
TRequestStatus *status = &aStatus;
|
|
|
787 |
User::RequestComplete(status, KErrNone);
|
|
|
788 |
}
|
|
|
789 |
}
|
|
|
790 |
}
|
|
|
791 |
}
|
|
|
792 |
|
|
|
793 |
/**
|
|
|
794 |
Retrieve the Previouschunk of the plain body text. If body is stored as 8bit, convert the chunk to Unicode.
|
|
|
795 |
@param aChunk The output parameter contains the requested chunk.
|
|
|
796 |
@leave KErrNotSupported If CMsvStore was opened in Write mode.
|
|
|
797 |
@leave KErrUnderflow If aChunk MaxLength is less than iChunkMaxLength.
|
|
|
798 |
@leave Other Standard system-wide error codes.
|
|
|
799 |
@return void
|
|
|
800 |
*/
|
|
|
801 |
EXPORT_C void CMsvPlainBodyText::PreviousChunkL(TDes16& aChunk)
|
|
|
802 |
{
|
|
|
803 |
if(iRichText)
|
|
|
804 |
{
|
|
|
805 |
ExtractPreviousChunkFromRichText(aChunk);
|
|
|
806 |
}
|
|
|
807 |
else
|
|
|
808 |
{
|
|
|
809 |
if(iIs8Bit && iStartPosOfEachChunkInFile.Count() >= 2)
|
|
|
810 |
{
|
|
|
811 |
delete iRemainingUnConvertedData;
|
|
|
812 |
iRemainingUnConvertedData = NULL;
|
|
|
813 |
|
|
|
814 |
TInt count = iStartPosOfEachChunkInFile.Count() - 1;
|
|
|
815 |
|
|
|
816 |
iFile.Seek(ESeekStart, iStartPosOfEachChunkInFile[count - 1] );
|
|
|
817 |
TInt numOfBytes = iStartPosOfEachChunkInFile[count] - iStartPosOfEachChunkInFile[count - 1];
|
|
|
818 |
iReadChunkLength = numOfBytes;
|
|
|
819 |
// Pop one position from iStartPosOfEachChunkInFile
|
|
|
820 |
iStartPosOfNextChunk = iStartPosOfEachChunkInFile[count];
|
|
|
821 |
iStartPosOfEachChunkInFile.Remove(count);
|
|
|
822 |
NextChunkL(aChunk);
|
|
|
823 |
}
|
|
|
824 |
else
|
|
|
825 |
{
|
|
|
826 |
TInt startPos = 0;
|
|
|
827 |
TInt currentPos = 0;
|
|
|
828 |
iFile.Seek(ESeekCurrent, currentPos);
|
|
|
829 |
TInt prevChunkPos = 0;
|
|
|
830 |
|
|
|
831 |
if(currentPos > 0)
|
|
|
832 |
{
|
|
|
833 |
startPos = currentPos - iReadChunkLength * 2;// Multiply by 2 to get no of bytes.
|
|
|
834 |
if(startPos > 0)
|
|
|
835 |
{
|
|
|
836 |
prevChunkPos = startPos - iChunkMaxLength * 2;// Multiply by 2 to get no of bytes.
|
|
|
837 |
if(prevChunkPos >= 0)
|
|
|
838 |
{
|
|
|
839 |
iFile.Seek(ESeekStart, prevChunkPos );
|
|
|
840 |
NextChunkL(aChunk);
|
|
|
841 |
}
|
|
|
842 |
else
|
|
|
843 |
{
|
|
|
844 |
aChunk.Copy(KNullDesC16);
|
|
|
845 |
}
|
|
|
846 |
}
|
|
|
847 |
}
|
|
|
848 |
}
|
|
|
849 |
}
|
|
|
850 |
}
|
|
|
851 |
|
|
|
852 |
/**
|
|
|
853 |
Extracts a chunk of iChunkMaxLength or less, from the CRichText object.
|
|
|
854 |
*/
|
|
|
855 |
void CMsvPlainBodyText::ExtractPreviousChunkFromRichText(TDes16& aChunk)
|
|
|
856 |
{
|
|
|
857 |
iPos -= iReadChunkLength;
|
|
|
858 |
if(iPos > 0)
|
|
|
859 |
{
|
|
|
860 |
iPos -= iChunkMaxLength;
|
|
|
861 |
if(iPos >= 0)
|
|
|
862 |
{
|
|
|
863 |
iRichText->Extract(aChunk, iPos, iChunkMaxLength);
|
|
|
864 |
iPos += iChunkMaxLength;
|
|
|
865 |
iReadChunkLength = iChunkMaxLength;
|
|
|
866 |
}
|
|
|
867 |
}
|
|
|
868 |
}
|
|
|
869 |
|
|
|
870 |
/**
|
|
|
871 |
Asynchronously retrives the body text chunks.If body is stored as 8bit, converts the chunk to Unicode.
|
|
|
872 |
@param None.
|
|
|
873 |
@return
|
|
|
874 |
*/
|
|
|
875 |
void CMsvPlainBodyText::DoRunL()
|
|
|
876 |
{
|
|
|
877 |
User::LeaveIfError(iStatus.Int());
|
|
|
878 |
if(iRetrieving8bit)
|
|
|
879 |
{
|
|
|
880 |
if(iChunk8->Length())
|
|
|
881 |
{
|
|
|
882 |
iReadChunkLength = iChunk8->Length();
|
|
|
883 |
}
|
|
|
884 |
Complete(iStatus.Int());
|
|
|
885 |
iRetrieving8bit = EFalse;
|
|
|
886 |
}
|
|
|
887 |
else
|
|
|
888 |
{
|
|
|
889 |
iIsLastChunk = EFalse;
|
|
|
890 |
if (iIs8Bit)
|
|
|
891 |
{
|
|
|
892 |
PrepareToConvertL();
|
|
|
893 |
if(iAvailable != CCnvCharacterSetConverter::EAvailable)
|
|
|
894 |
{
|
|
|
895 |
User::Leave(KErrNotSupported);
|
|
|
896 |
}
|
|
|
897 |
TInt numOfBytesInCurrentChunk = ConvertChunkToUnicodeForRestoreL();
|
|
|
898 |
if(iChunk16->Length() < iChunkMaxLength && !iIsLastChunk)
|
|
|
899 |
{
|
|
|
900 |
// iRfileReadBuf8 will be closed when ConvertChunkToUnicodeForRestoreL returns.
|
|
|
901 |
iRfileReadBuf8.Create(iChunkMaxLength);
|
|
|
902 |
//store the current position of the file so that if request cancels and for next
|
|
|
903 |
// call to NextChunkL() will attempt to read the same chunk that was cancelled
|
|
|
904 |
iCurrentFilePos = 0;
|
|
|
905 |
User::LeaveIfError(iFile.Seek(ESeekCurrent, iCurrentFilePos));
|
|
|
906 |
iFile.Read(iRfileReadBuf8, iChunkMaxLength, iStatus);
|
|
|
907 |
SetActive();
|
|
|
908 |
}
|
|
|
909 |
else
|
|
|
910 |
{
|
|
|
911 |
if(iPrevChunk)
|
|
|
912 |
{
|
|
|
913 |
//Pop one position from iStartPosOfEachChunkInFile
|
|
|
914 |
TInt count = iStartPosOfEachChunkInFile.Count() - 1;
|
|
|
915 |
iStartPosOfNextChunk = iStartPosOfEachChunkInFile[count];
|
|
|
916 |
iStartPosOfEachChunkInFile.Remove(count);
|
|
|
917 |
iPrevChunk = EFalse;
|
|
|
918 |
}
|
|
|
919 |
else
|
|
|
920 |
{
|
|
|
921 |
// Push Start position of current chunk in to the stack.
|
|
|
922 |
iStartPosOfEachChunkInFile.Append(iStartPosOfNextChunk);
|
|
|
923 |
iStartPosOfNextChunk += numOfBytesInCurrentChunk;
|
|
|
924 |
}
|
|
|
925 |
iReadChunkLength = numOfBytesInCurrentChunk;
|
|
|
926 |
Complete(iStatus.Int());
|
|
|
927 |
}
|
|
|
928 |
}
|
|
|
929 |
else
|
|
|
930 |
{
|
|
|
931 |
TPtrC16 ptr16((TUint16*)(iRfileReadBuf8.Ptr()), iRfileReadBuf8.Length()/2);
|
|
|
932 |
iChunk16->Copy(ptr16);
|
|
|
933 |
iRfileReadBuf8.Close();
|
|
|
934 |
Complete(iStatus.Int());
|
|
|
935 |
iReadChunkLength = ptr16.Length();
|
|
|
936 |
}
|
|
|
937 |
}
|
|
|
938 |
}
|
|
|
939 |
|
|
|
940 |
/**
|
|
|
941 |
Converts the 8 bit chunk to unicode.When this is called iRfileReadBuf8 will have the 8-bit
|
|
|
942 |
data that needs to be converted to unicode.8 bit data that is not converted is copied to
|
|
|
943 |
iRemainingUnConvertedData, which is used in conversion when this is called again.
|
|
|
944 |
@param None.
|
|
|
945 |
@return TInt Number of bytes in Current Chunk.
|
|
|
946 |
*/
|
|
|
947 |
TInt CMsvPlainBodyText::ConvertChunkToUnicodeForRestoreL()
|
|
|
948 |
{
|
|
|
949 |
TBufC16<KMaxDecodeUnicodeLength> outBuf;
|
|
|
950 |
TPtr16 outPtr = outBuf.Des();
|
|
|
951 |
TInt charsetState = CCnvCharacterSetConverter::KStateDefault;
|
|
|
952 |
|
|
|
953 |
TInt numOfBytesInCurrentChunk = 0;
|
|
|
954 |
TInt bytesUnconverted = 0;
|
|
|
955 |
// Check if we are processing the last chunk.
|
|
|
956 |
if(iRfileReadBuf8.Length() == 0)
|
|
|
957 |
{
|
|
|
958 |
iIsLastChunk = ETrue;
|
|
|
959 |
}
|
|
|
960 |
// Check if there are data that are yet to be converted.
|
|
|
961 |
if(iRemainingUnConvertedData)
|
|
|
962 |
{
|
|
|
963 |
if(iIsLastChunk)
|
|
|
964 |
{
|
|
|
965 |
TPtrC8 remPtr(*iRemainingUnConvertedData);
|
|
|
966 |
// If it is the lastchunk then convert the data, need not insert to input buffer.
|
|
|
967 |
if(iIsLastChunk)
|
|
|
968 |
{
|
|
|
969 |
while(remPtr.Length() > 0)
|
|
|
970 |
{
|
|
|
971 |
bytesUnconverted = iConverter->ConvertToUnicode(outPtr, remPtr, charsetState);
|
|
|
972 |
User::LeaveIfError(bytesUnconverted);
|
|
|
973 |
iChunk16->Append(outPtr);
|
|
|
974 |
remPtr.Set(remPtr.Right(bytesUnconverted));
|
|
|
975 |
}
|
|
|
976 |
}
|
|
|
977 |
}
|
|
|
978 |
else // If there are data that are yet to be converted insert it at the front of the input buffer.
|
|
|
979 |
{
|
|
|
980 |
iRfileReadBuf8.ReAllocL(iRfileReadBuf8.Length() + iRemainingUnConvertedData->Length());
|
|
|
981 |
iRfileReadBuf8.Insert(0, *iRemainingUnConvertedData);
|
|
|
982 |
}
|
|
|
983 |
delete iRemainingUnConvertedData;
|
|
|
984 |
iRemainingUnConvertedData = NULL;
|
|
|
985 |
}
|
|
|
986 |
|
|
|
987 |
TPtrC8 remainingUnconvertedData(iRfileReadBuf8);
|
|
|
988 |
// This loop will convert the data to unicode till iChunk16 is filled with the converted data.
|
|
|
989 |
while(remainingUnconvertedData.Length() >= KMaxDecodeUnicodeLength || (iIsLastChunk && remainingUnconvertedData.Length() > 0))
|
|
|
990 |
{
|
|
|
991 |
bytesUnconverted = iConverter->ConvertToUnicode(outPtr, remainingUnconvertedData, charsetState);
|
|
|
992 |
User::LeaveIfError(bytesUnconverted);
|
|
|
993 |
TInt bytesConverted = remainingUnconvertedData.Length()-bytesUnconverted;
|
|
|
994 |
|
|
|
995 |
if (iChunk16->Length() + outPtr.Length() <= iChunk16->MaxLength())
|
|
|
996 |
{
|
|
|
997 |
iChunk16->Append(outPtr);
|
|
|
998 |
numOfBytesInCurrentChunk += bytesConverted;
|
|
|
999 |
}
|
|
|
1000 |
else
|
|
|
1001 |
{
|
|
|
1002 |
// Copy remaining unconverted data to iRemainingConvertedData,
|
|
|
1003 |
// if outBuf.Length() is greater than the space remains in aChunk
|
|
|
1004 |
TInt availableSpaceOnChunk = iChunk16->MaxLength() - iChunk16->Length();
|
|
|
1005 |
iChunk16->Append(outPtr.Left(availableSpaceOnChunk));
|
|
|
1006 |
|
|
|
1007 |
numOfBytesInCurrentChunk += bytesConverted - iRemainingConvertedData.Length();
|
|
|
1008 |
iRemainingConvertedData.Append(outPtr.Mid(availableSpaceOnChunk));
|
|
|
1009 |
remainingUnconvertedData.Set(remainingUnconvertedData.Right(bytesUnconverted));
|
|
|
1010 |
break;
|
|
|
1011 |
}
|
|
|
1012 |
remainingUnconvertedData.Set(remainingUnconvertedData.Right(bytesUnconverted));
|
|
|
1013 |
}
|
|
|
1014 |
|
|
|
1015 |
// Copy remaining unconverted data to iRemainingUnConvertedData
|
|
|
1016 |
if(remainingUnconvertedData.Length())
|
|
|
1017 |
{
|
|
|
1018 |
__ASSERT_DEBUG(iRemainingUnConvertedData == NULL, PanicServer(EMsvBufferNotEmpty));
|
|
|
1019 |
iRemainingUnConvertedData = remainingUnconvertedData.AllocL();
|
|
|
1020 |
}
|
|
|
1021 |
iRfileReadBuf8.Close();
|
|
|
1022 |
return numOfBytesInCurrentChunk;
|
|
|
1023 |
}
|
|
|
1024 |
|
|
|
1025 |
/**
|
|
|
1026 |
Creates the character converter and specifies the character set to convert to or from.
|
|
|
1027 |
Leaves if the specified or default character set is not available.
|
|
|
1028 |
@param None.
|
|
|
1029 |
@return void.
|
|
|
1030 |
*/
|
|
|
1031 |
void CMsvPlainBodyText::PrepareToConvertL()
|
|
|
1032 |
{
|
|
|
1033 |
if(!iConverter)
|
|
|
1034 |
{
|
|
|
1035 |
iConverter = CCnvCharacterSetConverter::NewL();
|
|
|
1036 |
if (iCharsetId != 0)
|
|
|
1037 |
{
|
|
|
1038 |
iAvailable = iConverter->PrepareToConvertToOrFromL(iCharsetId, iFSession);
|
|
|
1039 |
}
|
|
|
1040 |
if (iAvailable == CCnvCharacterSetConverter::ENotAvailable)
|
|
|
1041 |
{
|
|
|
1042 |
iAvailable = iConverter->PrepareToConvertToOrFromL(iDefaultCharsetId, iFSession);
|
|
|
1043 |
}
|
|
|
1044 |
}
|
|
|
1045 |
}
|
|
|
1046 |
|
|
|
1047 |
/**
|
|
|
1048 |
Set iCharsetId to aCharset if body text of the message was downloaded as 8 bit.
|
|
|
1049 |
This can be used to override the charset with which a message was downloaded, when
|
|
|
1050 |
the body text is opened for reading.
|
|
|
1051 |
@param aCharset The new charset with which it needs to be converted.
|
|
|
1052 |
@return void.
|
|
|
1053 |
*/
|
|
|
1054 |
EXPORT_C void CMsvPlainBodyText::SetCharacterSetL(const TUint aCharset)
|
|
|
1055 |
{
|
|
|
1056 |
if(iStore.IsPresentL(KMsvPlainBodyText8))
|
|
|
1057 |
{
|
|
|
1058 |
iCharsetId = aCharset;
|
|
|
1059 |
}
|
|
|
1060 |
}
|
|
|
1061 |
|
|
|
1062 |
/**
|
|
|
1063 |
Returns the charset for the plain text part
|
|
|
1064 |
@param None.
|
|
|
1065 |
@return TUint
|
|
|
1066 |
*/
|
|
|
1067 |
EXPORT_C TUint CMsvPlainBodyText::CharacterSet()
|
|
|
1068 |
{
|
|
|
1069 |
return iCharsetId ;
|
|
|
1070 |
}
|
|
|
1071 |
|
|
|
1072 |
/**
|
|
|
1073 |
Returns the default charset for the plain text part
|
|
|
1074 |
@param None.
|
|
|
1075 |
@return TUint
|
|
|
1076 |
*/
|
|
|
1077 |
EXPORT_C TUint CMsvPlainBodyText::DefaultCharacterSet()
|
|
|
1078 |
{
|
|
|
1079 |
return iDefaultCharsetId;
|
|
|
1080 |
}
|
|
|
1081 |
|
|
|
1082 |
/**
|
|
|
1083 |
Commit the file and the store after it is written and and also closes the file.
|
|
|
1084 |
@param
|
|
|
1085 |
@return void
|
|
|
1086 |
*/
|
|
|
1087 |
EXPORT_C void CMsvPlainBodyText::CommitL()
|
|
|
1088 |
{
|
|
|
1089 |
iFile.Close();
|
|
|
1090 |
RMsvWriteStream out;
|
|
|
1091 |
if(iIs8Bit)
|
|
|
1092 |
{
|
|
|
1093 |
out.AssignLC(iStore, KMsvPlainBodyText8);
|
|
|
1094 |
out.WriteUint32L(iCharsetId);
|
|
|
1095 |
out.WriteUint32L(iDefaultCharsetId);
|
|
|
1096 |
}
|
|
|
1097 |
else
|
|
|
1098 |
{
|
|
|
1099 |
out.AssignLC(iStore, KMsvPlainBodyText16);
|
|
|
1100 |
}
|
|
|
1101 |
iIsCommitted = ETrue;
|
|
|
1102 |
out.WriteUint32L(iIsCommitted);
|
|
|
1103 |
|
|
|
1104 |
TBuf<KFileNameFixedWidth> fileName;
|
|
|
1105 |
fileName.NumFixedWidth(iMessageId, EHex, KFileNameFixedWidth);
|
|
|
1106 |
out << (TDes&)fileName;
|
|
|
1107 |
|
|
|
1108 |
out.CommitL();
|
|
|
1109 |
out.Close();
|
|
|
1110 |
iStore.CommitL();
|
|
|
1111 |
iMsvStoreManager.ReplacePlainTextFileL(iMessageId);
|
|
|
1112 |
CleanupStack::PopAndDestroy(&out);
|
|
|
1113 |
}
|
|
|
1114 |
|
|
|
1115 |
/**
|
|
|
1116 |
Revert/Delete the file if it is not committed.
|
|
|
1117 |
@param None.
|
|
|
1118 |
@return void.
|
|
|
1119 |
*/
|
|
|
1120 |
void CMsvPlainBodyText::RevertL()
|
|
|
1121 |
{
|
|
|
1122 |
iFile.Close();
|
|
|
1123 |
if(!iIsCommitted && iMsvFileStatus == EMsvFileWriting)
|
|
|
1124 |
{
|
|
|
1125 |
iMsvStoreManager.DeletePlainTextFileL(iMessageId);
|
|
|
1126 |
}
|
|
|
1127 |
}
|
|
|
1128 |
|
|
|
1129 |
/**
|
|
|
1130 |
Cancel the file read operation and set the filepointer to the current position of the file
|
|
|
1131 |
so that next call to NextChunkL() will attempt to read the same chunk that was cancelled
|
|
|
1132 |
@param None.
|
|
|
1133 |
@return void.
|
|
|
1134 |
*/
|
|
|
1135 |
void CMsvPlainBodyText::DoCancel()
|
|
|
1136 |
{
|
|
|
1137 |
if(iMsvFileStatus == EMsvFileReading)
|
|
|
1138 |
{
|
|
|
1139 |
iFile.ReadCancel();
|
|
|
1140 |
iFile.Seek(ESeekStart, iCurrentFilePos);
|
|
|
1141 |
}
|
|
|
1142 |
CMsgActive::DoCancel();
|
|
|
1143 |
}
|