// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

//

#include "CMsvPlainBodyTextEntry.H"

#include <msventry.h>

#include <cmsvplainbodytext.h>

#include "IMUTDLL.H"

/**

The NewL Factory function.

*/

CMsvPlainBodyTextEntry* CMsvPlainBodyTextEntry::NewL(TInt aIs8Bit, CMsvServerEntry& aServerEntry, TUint aCharset, TUint aDefaultCharset)

	{

	CMsvPlainBodyTextEntry* self = new (ELeave) CMsvPlainBodyTextEntry();

	CleanupStack::PushL(self);

	self->ConstructL(aIs8Bit, aServerEntry, aCharset, aDefaultCharset);

	CleanupStack::Pop(self);

	return self;

	}

/**

Constructor.

*/

CMsvPlainBodyTextEntry::CMsvPlainBodyTextEntry()

	{	

	}

/**

Creates an instance of CMsvPlainBodytext, that is used to store the bodytext .

*/	

void CMsvPlainBodyTextEntry::ConstructL(TInt aIs8Bit, CMsvServerEntry& aServerEntry, TUint aCharset, TUint aDefaultCharset)

	{

	iPlainBodyTextCache = HBufC8::NewL(KPlainBodyTextCacheSizeBytes);

	iStore = aServerEntry.EditStoreL();	

	iPlainBodyText = iStore->InitialisePlainBodyTextForWriteL(aIs8Bit, aCharset, aDefaultCharset);

	}

/**

Destructor.

*/	

CMsvPlainBodyTextEntry::~CMsvPlainBodyTextEntry()

	{

	delete iPlainBodyText;	

	delete iStore;	

	delete iPlainBodyTextCache;	

	}

/**

Adds a chunk of body data to the intermediate buffer.If aLineOfData contains last chunk of 

data then it is directly written to store.

@param aLineOfData 	the body data, ownership  is taken.

*/	

void CMsvPlainBodyTextEntry::AddChunkL(const TDesC8& aLineOfData)

	{

	__ASSERT_DEBUG(iCommittedData != ECommittedData, gPanic(EPanicDataCommitted));

	// Leave if the data has already been committed.

	if(iCommittedData == ECommittedData)

		{

		User::Leave(KErrAlreadyExists);

		}

	TInt spaceLeft = KPlainBodyTextCacheSizeBytes - iPlainBodyTextCache->Length();

	// If iPlainBodyTextCache is full, then write the cache to the message store.

	if(spaceLeft < aLineOfData.Length())

		{

		iPlainBodyText->StoreChunkL(*iPlainBodyTextCache);

		iPlainBodyTextCache->Des().SetLength(0);

		}

	// Now we need to store aLineOfData

	// Recalculate how much space is available in the cache

	spaceLeft = KPlainBodyTextCacheSizeBytes - iPlainBodyTextCache->Length();

	if(spaceLeft < aLineOfData.Length())

		{

		// We still don't have enough room.  Write this line directly to the store

		iPlainBodyText->StoreChunkL(aLineOfData);

		}

	else

		{

		// Cache the line of data - it will get written later.

		iPlainBodyTextCache->Des().Append(aLineOfData);

		}

	iCommittedData = EUnCommittedData;	

	}

/**

Commit the plainbody text file to message store.

*/	

void CMsvPlainBodyTextEntry::TryCommitL()

	{

	switch(iCommittedData)

		{

		// Commit the data, since entire data is recieved at this point.

		case EUnCommittedData:

			{

			// Write any remaining bodytext data to the store.

			if(iPlainBodyTextCache->Size() > 0)

				{

				iPlainBodyText->StoreChunkL(*iPlainBodyTextCache);

				iPlainBodyTextCache->Des().SetLength(0);

				}

			// Now commit the data.

			iPlainBodyText->CommitL();

			iCommittedData = ECommittedData;

			// Clean up.

			delete iPlainBodyText;

			iPlainBodyText = NULL;

			delete iStore;

			iStore = NULL;

			break;

			}

		case ECommittedData:

		case ENoData:

		default:

			{

			// Nothing to do in this state since data has already been committed.

			break;

			}

		}

	}