/*

* Copyright (c) 2004 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 Files  

#include <e32std.h>         // GLDEF_C

#include <e32base.h>

#include "MsgSession.h"

#include "sysini.h"

#define KInitialMessageBufferSize		1024

TVersion MessageRelayVersion = TVersion(1, 0, 0);

/****************************************************************************

*   CMessageNotifier

*****************************************************************************

*

*

*

****************************************************************************/

class CMessageNotifier : public CActive

{

	CMessageSession *iOwner;

	void ConstructL(CMessageSession *aOwner);

	CMessageNotifier();

public:

	static CMessageNotifier *NewL(CMessageSession *aOwner);

	static CMessageNotifier *NewLC(CMessageSession *aOwner);

	void RunL();

	void DoCancel();	

	void StartReceiveL();

	TRequestStatus *GetStatusPtr() { return &iStatus;}

};

CMessageNotifier::CMessageNotifier() :

CActive(EPriorityNormal)

	{

	}

void CMessageNotifier::ConstructL(CMessageSession *aOwner)

	{

	iOwner = aOwner;

	CActiveScheduler::Add(this);

	}

CMessageNotifier *CMessageNotifier::NewL(CMessageSession *aOwner)

	{	

	CMessageNotifier *self = CMessageNotifier::NewLC(aOwner);

	CleanupStack::Pop();

	return self;

	}

CMessageNotifier *CMessageNotifier::NewLC(CMessageSession *aOwner)

	{

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

	CleanupStack::PushL(self);

	self->ConstructL(aOwner);

	return self;

	}

void CMessageNotifier::RunL()

{

	/* RunL(...) is called only when a message is received. */

	ASSERT(iOwner != NULL);

	ASSERT(iOwner->iListener != NULL);

  if (iStatus.Int() == KErrNone) {

    if (iOwner->iMessageBuffer->Length() > 0) {

	    iOwner->iListener->ReceiveMessageL(iOwner->iMessageBuffer->Des());

    }

    StartReceiveL();

  }

}

void CMessageNotifier::DoCancel()

{

  iOwner->SendReceive(KCancelReceive, TIpcArgs()); 

}

void CMessageNotifier::StartReceiveL()

{

    iStatus = KRequestPending;	

    SetActive();

    iOwner->iMessagePtr->Zero();

    TIpcArgs args(iOwner->iMessagePtr);

    iOwner->SendReceive(KReceive, args, iStatus);

}

/****************************************************************************

*   CMessageSession

*****************************************************************************

*

*

*

****************************************************************************/

EXPORT_C CMessageSession::CMessageSession() : 

RSessionBase()

	{

	}

EXPORT_C void CMessageSession::ConstructL()	

	{

	iMessageBuffer = HBufC8::NewL(KMaxSmsBufferSize);

	iMessagePtr = new (ELeave) TPtr8(iMessageBuffer->Des());

	iListener = NULL;

	iIncomingNotify = CMessageNotifier::NewL(this);

	}

EXPORT_C CMessageSession *CMessageSession::NewL()

	{

	CMessageSession *self = CMessageSession::NewLC();

	CleanupStack::Pop();

	return self;

	}

EXPORT_C CMessageSession *CMessageSession::NewLC()

	{

	CMessageSession *self = new (ELeave) CMessageSession;

	CleanupStack::PushL(self);

	self->ConstructL();

	return self;

	}

EXPORT_C CMessageSession::~CMessageSession()

	{

	StopListeningL();

	delete iIncomingNotify;

	delete iMessageBuffer;

	delete iMessagePtr;

	}

/* Attaches to server. */

EXPORT_C void CMessageSession::AttachL()

	{

	User::LeaveIfError(CreateSession(KRelayServiceName, MessageRelayVersion));

	}

/* Sends a message. */

EXPORT_C void CMessageSession::SendMessageL(const TPtr8 &aMessage, TMessageType aType)

	{

	TIpcArgs args( aMessage.Length(), &aMessage, aType );

	User::LeaveIfError( SendReceive( KNewMessage, args ) );

	}

/* Listen messages of given type in a given port. One

   session may listen to one port only. */

EXPORT_C void CMessageSession::ListenMessagesL(TMessageType aType, TUint aPort)

	{

	ASSERT(iListener != NULL);

	TIpcArgs args( iMessagePtr, aType, aPort);

    User::LeaveIfError(SendReceive(KStartListening, args));

	iIncomingNotify->StartReceiveL();

	}

/* Stops listening message. */

EXPORT_C void CMessageSession::StopListeningL()

	{

	User::LeaveIfError(SendReceive(KStopListening, TIpcArgs()));

	iIncomingNotify->Cancel();

	}

/* Sets the message listener. Listener's ReceiveMessageL(...)

   is called, when a new message is received. */

EXPORT_C void CMessageSession::SetListener(CMessageListener *aListener)

	{

	iListener = aListener;

	}

/* Returns ETrue, is session set to listening state. */

EXPORT_C TBool CMessageSession::IsListening() const

	{

	if( iIncomingNotify->IsActive() )

		return ETrue;

	else 

		return EFalse;

	}

/* Returns ETrue, if file based SMS should be used.

   Reads the settings from c:\system\data\wma.ini file.

   File format:

	# Starts a comment line

	# Set UseSocketOutput=1 to use native sockets implementation,

	# UseSocketOutput=0 to use file based SMS messaging.

	UseSocketOutput=0								*/

EXPORT_C TBool CMessageSession::UseFileSMS()

	{

	/* The config file. */

	_LIT(KWMAIniFile, "c:\\system\\data\\wma.ini");

	/* The write mode; 0 == file (default), 1 == socket. */

	int mode = 0;

	CSysIni *ini = NULL;

	/* Open the config file. NewLC leaves, if the file is not found, in which

	   case we default to writing to file. */ 

	TRAPD(err, ini = CSysIni::NewL(KWMAIniFile));

	CleanupStack::PushL(ini);

	switch ( err )

	{

	case KErrNone:

	   if (ini->SeekBool("UseSocketOutput"))

	      mode = 1; // Use socket output

	   break;

	case KErrNotFound:

		mode = 0;

       break;

	default:

		User::Panic(_L("CMessageSession::UseFileSms() panic:"), err);

	} 

	//delete ini;

	CleanupStack::PopAndDestroy();

	if (mode == 1)

		return EFalse;

	else

		return ETrue;

	}

/****************************************************************************

*   CMessageListener

*****************************************************************************

*

*

*

****************************************************************************/

EXPORT_C void CMessageListener::ConstructL()

	{

	}

EXPORT_C CMessageListener *CMessageListener::NewL()

	{

	CMessageListener *self = CMessageListener::NewLC();

	CleanupStack::Pop();

	return self;

	}

EXPORT_C CMessageListener *CMessageListener::NewLC()

	{

	CMessageListener *self = new (ELeave) CMessageListener;

	CleanupStack::PushL(self);

	self->ConstructL();

	return self;

	}	

EXPORT_C CMessageListener::~CMessageListener()

	{

	}

/* Called when a message is received. */

EXPORT_C void CMessageListener::ReceiveMessageL(const TPtr8 &/*aMessage*/)

	{

	}

// End of file