/*

* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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:  Implementation of CMultiPartMixedContentHandler.

*

*/

// INCLUDE FILES

#include "CMultiPartMixedContentHandler.h"

#include <PushDispatcher.h>

#include <CMultiPartTextIterator.h>

#include <CMultiPartBinIterator.h>

// Constants

_LIT(KReserved, "Reserved");

#if defined(_DEBUG)

_LIT(KErrPushMsgNull,	"NULL CPushMessage");

#endif

/** 

 * Static Factory Construction

 *

 * @param aFs Reference to a file session

 * @param aLibrary Reference to DLL Library Object

 * @param aIndex Index number corresponding to the Unknown App Handler Class 

 *        'EMultiPartMixedContentHandler'

 *

 * @return fully initialized instance of this class

 */

CMultiPartMixedContentHandler* CMultiPartMixedContentHandler::NewL()

	{

	CMultiPartMixedContentHandler* self = 

        new (ELeave) CMultiPartMixedContentHandler;

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop(self);

	return self;

	}

/** 

 * Destructor

 */

CMultiPartMixedContentHandler::~CMultiPartMixedContentHandler()

	{

    Cancel();

	delete iMultiMessage;

    iContentHandler = NULL; // Not owned.

	}

/**

 * Constructor

 *

 * @param aFs Reference to a file session

 * @param aLibrary Reference to DLL Library Object

 * @param aIndex Index number corresponding to the Unknown App Handler Class 

 *        'EMultiPartMixedContentHandler'

 */ 

CMultiPartMixedContentHandler::CMultiPartMixedContentHandler()

:   CContentHandlerBase()

	{

	}

/**

 *  This will complete initialization of the object

 */

void CMultiPartMixedContentHandler::ConstructL()

	{

	CActiveScheduler::Add(this);

	}

#ifdef __TEST_MULTIPART_MIX_SUPP

/** 

 * Creates a Multipart Binary Iterator that will be used for splitting apart the binary

 * mulitpart.

 *

 * @param aPushMsg A WAP binary multipart.mixed message that will be processed

 */

void CMultiPartMixedContentHandler::LoadMultipartMsgL()

	{

	__ASSERT_DEBUG( iMessage!= 0 , User::Panic(KErrPushMsgNull,0));

	TPtrC contentType;

	iMessage->GetContentType(contentType);

	if (!contentType.FindF(KMultipartText))

		iMultiMessage = CMultipartTextIterator::NewL(*iMessage);

	else if (!contentType.FindF(KMultipartBin))

		iMultiMessage = CMultipartBinIterator::NewL(*iMessage);

	else

		User::Leave(KErrCorrupt);

	iMultiMessage->FirstL();

	iState = EHandlePart;

	IdleComplete();

	}

/**

 *	Handles the Message Part returned from the Multipart iterator

 *  by creating a new handler based on the Content-Type, then dispatches it

 *  synchronously.

 */

void CMultiPartMixedContentHandler::HandlePartL()

	{

	CPushMessage* msgPart = iMultiMessage->PartL();

	CleanupStack::PushL(msgPart);

	TPtrC contentType;

	msgPart->GetContentType(contentType);

	CContentHandlerBase& contentHandler = 

        PushContentTypeDispatcher::GetHandlerL( contentType, *iLog, *iManager );

	iContentHandler = &contentHandler;

	CleanupStack::Pop(msgPart);

	// treat as an acknowledged message always to ensure 

	// sequential creation of handlers

	iContentHandler->HandleMessageL(msgPart, iStatus);

	iState = ENextPart;

	SetActive();

	}

/**

 *	Moves multipart iterator to the next part. If there is none,

 *  State: EDone will be set to complete this handler

 */

void CMultiPartMixedContentHandler::NextPartL()

	{

	if (iMultiMessage->NextL())

		iState = EHandlePart;

	else 

		iState = EDone;

	IdleComplete();

	}

#endif // __TEST_MULTIPART_MIX_SUPP

/** 

 * The Asynchronous entry point for this plug-in to handle the CPushMessage.

 * 

 * Since we really didn't start an async event, make it look as though our

 * asynchronous request has been completed. 

 *

 * @param aPushMsg A WAP binary multipart.mixed message that will be processed

 * @param aStatus The TRequestStatus of the caller indicating that this will 

 *        be used aysnchronously

 */

void CMultiPartMixedContentHandler::HandleMessageL( CPushMessage* aPushMsg, 

                                                    TRequestStatus& aStatus )

	{

	__ASSERT_DEBUG( aPushMsg != NULL, User::Panic(KErrPushMsgNull, KErrNone));

#ifdef __TEST_MULTIPART_MIX_SUPP

	iAcknowledge = ETrue;

	iMessage = aPushMsg;

	SetConfirmationStatus(aStatus);

	iState = ELoadMsgData;

	IdleComplete();

#else // __TEST_MULTIPART_MIX_SUPP

	iAcknowledge = ETrue;

	iMessage = aPushMsg;

	SetConfirmationStatus(aStatus);

    // Drop all multipart/mixed messages.

    iState = EDone;

	IdleComplete();

#endif // __TEST_MULTIPART_MIX_SUPP

	}

/** 

 * The Synchronous entry point for this plug-in to handle the CPushMessage.

 *

 * @param aPushMsg A WAP binary multipart.mixed message that will be processed

 * @param aStatus The TRequestStatus of the caller indicating that this will be 

 *        used aysnchronously

 */

void CMultiPartMixedContentHandler::HandleMessageL( CPushMessage* aPushMsg )

	{

	__ASSERT_DEBUG( aPushMsg != NULL, User::Panic(KErrPushMsgNull, KErrNone));

#ifdef __TEST_MULTIPART_MIX_SUPP

	iAcknowledge = EFalse;

	iMessage = aPushMsg;

	iState = ELoadMsgData;

	IdleComplete();

#else // __TEST_MULTIPART_MIX_SUPP

	iAcknowledge = EFalse;

	iMessage = aPushMsg;

    // Drop all multipart messages.

    iState = EDone;

	IdleComplete();

#endif // __TEST_MULTIPART_MIX_SUPP

	}

/** 

 * Cancels Asynronous requests on called handler.

 */

void CMultiPartMixedContentHandler::CancelHandleMessage()

	{

    Cancel();

	}

void CMultiPartMixedContentHandler::CPushHandlerBase_Reserved1()

	{

	User::Panic(KReserved, KErrNotSupported);

	}

void CMultiPartMixedContentHandler::CPushHandlerBase_Reserved2()

	{

	User::Panic(KReserved, KErrNotSupported);

	}

/** 

 * Cancels Asynronous requests on caller and completes self.

 */

void CMultiPartMixedContentHandler::DoCancel()

	{

	if ( iContentHandler )

        {

		iContentHandler->CancelHandleMessage();

        }

	Complete( KErrCancel );

	}

/** 

 * State machine to step through the multipart message until it is done

 *

 * State EHandlePart: Starts the processing of each part of the multipart

 * State ENextPart: Moves the interator to point to the next part of the multipart

 * when there are no more parts, EDone will be the next state

 * State EDone: Clean up and complete

 */

void CMultiPartMixedContentHandler::RunL()

	{

	switch(iState)

		{

#ifdef __TEST_MULTIPART_MIX_SUPP

        case ELoadMsgData:

            {

			LoadMultipartMsgL();

			break;

            }

		case EHandlePart:

            {

			HandlePartL();

			break;

            }

		case ENextPart:

            {

			NextPartL();

			break;

            }

#endif // __TEST_MULTIPART_MIX_SUPP

        case EDone:

            {

			Complete(KErrNone);

			break;

            }

		default:

            {

			break;

            }

		}

	}

/** 

 * Clean up

 */

TInt CMultiPartMixedContentHandler::RunError(TInt aError)

	{

	iState=EDone;

	Complete(aError);

	return KErrNone;

	}