// 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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// CIMPLAINBODYTEXT.CPP+
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//+
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+
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#include "MIUTMSG.H"+
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#include "MIUTCONV.H"+
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#include "MIUT_ERR.H"+
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#include "CIMPLAINBODYTEXT.H"+
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#ifdef SYMBIAN_ENABLE_SPLIT_HEADERS +
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#include "cimmessagepart.h" +
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#include "cimconvertcharconv.h"+
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#include "miut_errconsts.h"+
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#endif+
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#include <cmsvplainbodytext.h>+
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+
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/**+
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NewL Factory method.+
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@param	aEmailMessage.   The CImEmailMessage refernce corresponding to the message whose body text is being processed.+
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@param	aMsvEntry.		 The CMsvEntry correspoding to the message being processed.+
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@param  aEntryType.		 The TImEmailEntryType for the message.+
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@param	aChunkLength.	 The length of the chunk that will be stored/restored in a single operation.+
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@param  aWriteMode.		 Indicates whether CMsvStore needs to be opened in Read/Write mode.+
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						 ETrue indicates Write mode.+
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						 EFalse indicates Read mode.+
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@return CImPlainBodyText.Pointer to CImPlainBodyText.+
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*/	+
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CImPlainBodyText* CImPlainBodyText::NewL(CImEmailMessage& aEmailMessage, CMsvEntry& aMsvEntry, CImEmailMessage::TImEmailEntryType aEntryType, TInt aChunkLength, TBool aWriteMode)+
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	{+
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	CImPlainBodyText* self = new (ELeave) CImPlainBodyText(aEmailMessage, aMsvEntry);+
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	CleanupStack::PushL(self);+
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	self->ConstructL(aChunkLength, aEntryType, aWriteMode);+
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	CleanupStack::Pop();+
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	return self;+
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	}+
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+
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/**+
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Constructor+
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@param	aEmailMessage. The CImEmailMessage refernce corresponding to the message whose body text is +
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@param	aMsvEntry.	   The CMsvEntry correspoding to the message being processed.+
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@return None.+
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*/+
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CImPlainBodyText::CImPlainBodyText(CImEmailMessage& aEmailMessage, CMsvEntry& aMsvEntry)+
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: CMsgActive(EPriorityNormal), iEmailMessage(aEmailMessage), iMsvEntry(aMsvEntry)+
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	{+
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	}+
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+
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/**+
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The 2nd Phase construction.+
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*/	+
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void CImPlainBodyText::ConstructL(TInt aChunkLength, CImEmailMessage::TImEmailEntryType aEntryType, TBool aWriteMode)+
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	{+
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	iMessageId = iMsvEntry.EntryId();+
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	RArray<TMsvId> textIdArray;+
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	CleanupClosePushL (textIdArray);+
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	iEmailMessage.GetBodyTextEntryIdL(iMessageId, aEntryType);	+
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	+
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	// A message may contain more than one text part.+
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	TInt count = iEmailMessage.Selection().Count();+
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	for(TInt i=0;i<count;++i)+
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		{+
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		textIdArray.Append(iEmailMessage.Selection().At(i));+
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		}+
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		+
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	TUint charset = 0; // Will contain the charset when GetCharacterSetL returns.+
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	TBool override = EFalse; // Will be set to ETrue if the existing charset was overidden.+
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	iEmailMessage.GetCharacterSetL(iMessageId,charset,override);	+
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	+
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	if(aWriteMode)+
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		{+
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		RFs& fileSvrSession = iMsvEntry.Session().FileSession();+
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		+
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		CCnvCharacterSetConverter* characterConverter = CCnvCharacterSetConverter::NewL();+
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		CleanupStack::PushL(characterConverter);+
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		+
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		CImConvertCharconv* charConv = CImConvertCharconv::NewL(*characterConverter, fileSvrSession);+
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		CleanupStack::PushL(charConv);+
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		+
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		TUint defaultCharset = charConv->DefaultCharset();+
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		CleanupStack::PopAndDestroy(2,characterConverter); // charConv, characterConverter+
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		+
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		iMsvEntry.SetEntryL(textIdArray[0]);+
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		iStore = iMsvEntry.EditStoreL();+
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		// Body text is stored in MailStore as 16 bit so set iIs8Bit to EFalse.+
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		iPlainTextArray.Append(iStore->InitialisePlainBodyTextForWriteL(EFalse, charset, defaultCharset));	+
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		}	+
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	else+
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		{+
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		TInt textIdCount = textIdArray.Count();+
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		for(TInt i=0; i<textIdCount; ++i)+
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			{+
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			// Pointing to the text entry.+
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			iMsvEntry.SetEntryL(textIdArray[i]);	+
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			CMsvStore* store = iMsvEntry.ReadStoreL();+
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			CleanupStack::PushL(store);+
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			+
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			iPlainTextArray.Append( store->InitialisePlainBodyTextForReadL(aChunkLength));+
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			// if the existing charset was overidden by calling CImEmailMessage::SetCharacterSetL+
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			if(override)+
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				{+
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				iPlainTextArray[i]->SetCharacterSetL(charset);+
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				}+
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			CleanupStack::PopAndDestroy(store);+
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			store = NULL;+
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			}+
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		}+
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	CleanupStack::PopAndDestroy(&textIdArray);+
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	CActiveScheduler::Add(this);+
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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 CImPlainBodyText::~CImPlainBodyText()+
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	{+
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	delete iStoreMessagePart;+
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	iPlainTextArray.ResetAndDestroy();+
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	iPlainTextArray.Close();	+
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	delete iStore;+
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	}+
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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 CImPlainBodyText::StoreChunkL(const TDesC8& aChunk, TRequestStatus& aStatus)+
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	{+
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	iPlainTextArray[0]->StoreChunkL(aChunk, aStatus);+
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	}+
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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 CImPlainBodyText::StoreChunkL(const TDesC8& aChunk)+
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	{+
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	iPlainTextArray[0]->StoreChunkL(aChunk);+
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	}+
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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 CImPlainBodyText::StoreChunkL(const TDesC16& aChunk, TRequestStatus& aStatus)+
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	{+
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	iPlainTextArray[0]->StoreChunkL(aChunk, aStatus);+
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	}+
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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 CImPlainBodyText::StoreChunkL(const TDesC16& aChunk)+
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	{+
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	iPlainTextArray[0]->StoreChunkL(aChunk);+
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	}+
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	+
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+
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+
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/**+
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Converts and stores the CRichText contents to a plain text.+
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@param aRichText 		 The CRichText object that will be stored as plain body text.+
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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 CImPlainBodyText::StoreRichTextAsPlainTextL(CRichText& aRichText)+
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	{+
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	iPlainTextArray[0]->StoreRichTextAsPlainTextL(aRichText);+
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	}+
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+
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/**+
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Retrieve the next chunk of the plain body text.+
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@param aChunk 			 The output parameter contains the requested chunk.+
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@param aStatus.			 The TRequestStatus for this request.+
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@leave KErrAccessDenied  If CMsvStore was opened in Write mode.+
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@leave KErrNotSupported  If 16-bit storage is enabled.+
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@leave KErrUnderflow 	 If aChunk MaxLength is less than iChunkMaxLength.+
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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 CImPlainBodyText::NextChunkL(TDes8& aChunk, TRequestStatus& aStatus)+
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	{+
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	__ASSERT_DEBUG(iChunkRetrievalState == EIdleState, gPanic(EImcmNonIdleRetrievalState));+
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	iChunkRetrievalState = ENextChunk8Bit;+
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	+
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	iChunk8 = &aChunk;+
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	iChunk16 = NULL;	+
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	iPlainTextArray[iIndex]->NextChunkL(aChunk, iStatus);+
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	SetActive();+
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	Queue(aStatus);+
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	}+
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+
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/**+
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Retrieve the next chunk of the plain body text.+
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@param aChunk 			 The output parameter contains the requested chunk.+
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@leave KErrNotSupported  If CMsvStore was opened in Write mode.+
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@leave KErrNotSupported  If 16-bit storage is enabled.+
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@leave KErrUnderflow	 If aChunk MaxLength is less than iChunkMaxLength.+
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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 CImPlainBodyText::NextChunkL(TDes8& aChunk)+
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	{+
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	iPlainTextArray[iIndex]->NextChunkL(aChunk);+
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	// If there is more than one text part for the message move to next text part.+
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	if(aChunk.Length() == 0 && iIndex + 1 < iPlainTextArray.Count())+
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		{+
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		iPlainTextArray[++iIndex]->NextChunkL(aChunk);+
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		}+
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	}+
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+
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+
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+
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/**+
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Restore the plain body text into chunks.+
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@param aChunk  			The output parameter contains the requested chunk on completion.+
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@param aStatus 			The TRequestStatus parameter for this request.+
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@leave KErrNotSupported If CMsvStore was opened in Write mode.+
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@leave KErrUnderflow	If aChunk MaxLength is less than iChunkMaxLength.+
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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 CImPlainBodyText::NextChunkL(TDes16& aChunk, TRequestStatus& aStatus)+
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	{+
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	__ASSERT_DEBUG(iChunkRetrievalState == EIdleState, gPanic(EImcmNonIdleRetrievalState));+
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	iChunkRetrievalState = ENextChunk16Bit;+
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			+
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	iChunk16 = &aChunk;+
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	iChunk8 = NULL;+
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	iPlainTextArray[iIndex]->NextChunkL(aChunk, iStatus);+
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	SetActive();+
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	Queue(aStatus);+
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	}+
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+
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/**+
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Restores the plain body text into chunks.+
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@param aChunk  			 The output parameter contains the requested chunk on completion.+
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@leave KErrNotSupported  If CMsvStore was opened in Write mode.+
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@leave KErrUnderflow	 If aChunk MaxLength is less than iChunkMaxLength.+
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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 CImPlainBodyText::NextChunkL(TDes16& aChunk)+
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	{+
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	iPlainTextArray[iIndex]->NextChunkL(aChunk);+
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	// If there is more than one text part for the message move to next text part.+
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	if(aChunk.Length() == 0 && iIndex + 1 < iPlainTextArray.Count())+
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		{+
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		iPlainTextArray[++iIndex]->NextChunkL(aChunk);+
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		}+
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	}+
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+
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/**+
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Retrieve the next chunk of the plain body text.+
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@param aChunk 			 The output parameter contains the requested chunk.+
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@leave KErrNotSupported  If CMsvStore was opened in Write mode.+
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@leave KErrNotSupported  If 16-bit storage is enabled.+
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@leave KErrUnderflow	 If aChunk MaxLength is less than iChunkMaxLength.+
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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 CImPlainBodyText::PreviousChunkL(TDes8& aChunk, TRequestStatus& aStatus)+
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	{+
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	__ASSERT_DEBUG(iChunkRetrievalState == EIdleState, gPanic(EImcmNonIdleRetrievalState));+
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	iChunkRetrievalState = EPreviousChunk8Bit;+
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	+
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	iChunk8 = &aChunk;+
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	iChunk16 = NULL;	+
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	iPlainTextArray[iIndex]->PreviousChunkL(aChunk, iStatus);+
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	SetActive();+
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	Queue(aStatus);+
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	}+
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+
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+
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/**+
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Retrieve the next chunk of the plain body text.+
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@param aChunk 			 The output parameter contains the requested chunk.+
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@leave KErrNotSupported  If CMsvStore was opened in Write mode.+
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@leave KErrNotSupported  If 16-bit storage is enabled.+
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@leave KErrUnderflow	 If aChunk MaxLength is less than iChunkMaxLength.+
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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 CImPlainBodyText::PreviousChunkL(TDes8& aChunk)+
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	{+
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	iPlainTextArray[iIndex]->PreviousChunkL(aChunk);+
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	// If message had more than one text part move to previous text part.+
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	if(aChunk.Length() == 0 && iIndex - 1 >= 0)+
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		{+
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		iPlainTextArray[--iIndex]->PreviousChunkL(aChunk);+
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		}+
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	}	+
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+
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/**+
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Restore the plain body text into chunks.+
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@param aChunk            The output parameter contains the requested chunk on completion.+
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@param aStatus	         The TRequestStatus parameter for this request.+
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@leave KErrNotSupported  If CMsvStore was opened in Write mode.+
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@leave KErrUnderflow	 If aChunk MaxLength is less than iChunkMaxLength.+
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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 CImPlainBodyText::PreviousChunkL(TDes16& aChunk, TRequestStatus& aStatus)+
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	{+
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	__ASSERT_DEBUG(iChunkRetrievalState == EIdleState, gPanic(EImcmNonIdleRetrievalState));+
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	iChunkRetrievalState = EPreviousChunk16Bit;+
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	+
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	iChunk16 = &aChunk;+
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	iChunk8 = NULL;+
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	iPlainTextArray[iIndex]->PreviousChunkL(aChunk, iStatus);+
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	SetActive();+
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	Queue(aStatus);+
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	}+
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+
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/**+
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Restore the plain body text into chunks.+
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@param aChunk            The output parameter contains the requested chunk on completion.+
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@leave KErrNotSupported  If CMsvStore was opened in Write mode.+
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@leave KErrUnderflow	 If aChunk MaxLength is less than iChunkMaxLength.+
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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 CImPlainBodyText::PreviousChunkL(TDes16& aChunk)+
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	{+
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	iPlainTextArray[iIndex]->PreviousChunkL(aChunk);+
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	// If message had more than one text part move to previous text part.+
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	if(aChunk.Length() == 0 && iIndex - 1 >= 0)+
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		{+
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		iPlainTextArray[--iIndex]->PreviousChunkL(aChunk);+
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		}+
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	}	+
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+
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+
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+
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void CImPlainBodyText::DoRunL()+
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	{+
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	__ASSERT_DEBUG(iChunkRetrievalState != EIdleState, gPanic(EImcmIdleRetrievalState));+
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	+
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	TBool callComplete = ETrue;+
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	switch(iChunkRetrievalState)+
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		{+
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		// DoRunL is called as a result to a call to 8-bit asynchronous NextChunkL.+
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		case ENextChunk8Bit:+
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			{ +
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			// Check if there are more than one body text part.+
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			if(iChunk8->Length() == 0 && iIndex + 1 < iPlainTextArray.Count())+
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				{+
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				iPlainTextArray[++iIndex]->NextChunkL(*iChunk8, iStatus);+
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				SetActive();+
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				callComplete = EFalse;+
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				}+
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			break;+
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			}+
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		case ENextChunk16Bit:+
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			{+
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			// Check if there are more than one body text part+
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			if(iChunk16->Length() == 0 && iIndex + 1 < iPlainTextArray.Count())+
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				{+
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				iPlainTextArray[iIndex]->NextChunkL(*iChunk16, iStatus);+
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				SetActive();+
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				callComplete = EFalse;+
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				}+
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			break;	+
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			}+
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	+
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		case EPreviousChunk8Bit:+
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			{+
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			// DoRunL is called as a result to a call to 8-bit asynchronous PreviousChunkL.+
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			if(iChunk8->Length() == 0 && iIndex - 1 >= 0)+
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				{+
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				iPlainTextArray[--iIndex]->NextChunkL(*iChunk8, iStatus);+
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				SetActive();+
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				callComplete = EFalse;+
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				}+
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			break;	+
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			}+
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		case EPreviousChunk16Bit:+
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			{+
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			if(iChunk16->Length() == 0 && iIndex - 1 >= 0)+
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				{+
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				iPlainTextArray[--iIndex]->PreviousChunkL(*iChunk16, iStatus);+
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				SetActive();+
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				callComplete = EFalse;+
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				}+
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			break;	+
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			}+
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		default:+
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			{+
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			__ASSERT_DEBUG(iChunkRetrievalState != EIdleState, gPanic(EImcmIdleRetrievalState));+
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			break;+
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			}+
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		+
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		}+
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	if(callComplete)	+
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		{+
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		Complete(iStatus.Int());+
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		iChunkRetrievalState = EIdleState;+
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		}+
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	}+
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+
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/**+
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Commits the email message after it has been completed.+
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@param aStatus      The  TRequestStatus parameter for this request.+
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@return void+
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*/+
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EXPORT_C void CImPlainBodyText::CommitL(TRequestStatus& aStatus)+
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	{+
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	iPlainTextArray[0]->CommitL();+
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	delete iStore;+
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	iStore = NULL;+
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	iStoreMessagePart = CImStoreMessagePart::StorePlainBodyTextL(aStatus, iMsvEntry, iMessageId);+
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	}+
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+
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+
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/**+
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Commits the email message after it has been completed along with mime header for this message.+
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@param aStatus      The TRequestStatus parameter for this request.+
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@param aMimeHeader  The CMimeHeader for this message.+
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@return void+
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*/+
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EXPORT_C void CImPlainBodyText::CommitL(TRequestStatus& aStatus, CImMimeHeader& aMimeHeader)+
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	{+
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	// Commit the file.This will close the plainbody text file.+
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	iPlainTextArray[0]->CommitL();+
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	delete iStore;+
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	iStore = NULL;+
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	iStoreMessagePart = CImStoreMessagePart::StorePlainBodyTextL(aStatus, iMsvEntry, iMessageId, aMimeHeader);+
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	}+
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+
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/**+
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Cancels the relavent CMsvPlainBodyText object+
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*/	+
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void CImPlainBodyText::DoCancel()+
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	{+
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	iPlainTextArray[iIndex]->Cancel();+
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	}+
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