/*

* Copyright (c) 2006 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 <s32mem.h>

#include <liwcommon.h>

#include "cpclientactivenotifier.h"

#include "ccontentmap.h"

#include "cpdebug.h"

#include "cpglobals.h"

#include "cpserverdef.h"

#include "cdatasourceinterface.h"

using namespace LIW;

// ======== MEMBER FUNCTIONS ========

// ----------------------------------------------------------------------------

//

// ----------------------------------------------------------------------------

//

CCPActiveNotifier* CCPActiveNotifier::NewL( RCPServerClient& aServerClient )

    {

    CCPActiveNotifier* self = new( ELeave ) 

            CCPActiveNotifier ( aServerClient );

    CleanupStack::PushL( self );

    self->ConstructL( );

    CleanupStack::Pop( self );

    return self;

    }

// ---------------------------------------------------------------------------

// destructor

// ---------------------------------------------------------------------------

CCPActiveNotifier::~CCPActiveNotifier()

    {

    CP_DEBUG( _L8("CCPActiveNotifier::CCPActiveNotifier()" ) );

    Cancel( );

    iObservers.Close( );

    delete iObserverBuf;

    delete iSizeDes;

    }

// ----------------------------------------------------------------------------

//

// ----------------------------------------------------------------------------

//

void CCPActiveNotifier::RegisterL( MLiwNotifyCallback* aObserver, 

    {

    CP_DEBUG( _L8("CCPActiveNotifier::RegisterL()" ) );

    TIpcArgs args;

   	if(iObservers.Find( aTransactionId ))

   		{

   		User::Leave( KErrInUse );

   		}

   	iObservers.InsertL( aTransactionId, aObserver );

	delete iObserverBuf;

	iObserverBuf = NULL;

 	iObserverBuf = aMap->PackForServerLC( );

   	CleanupStack::Pop( iObserverBuf );

   	args.Set( KDescriptorPosition, &*iObserverBuf );

	args.Set( KTransactionPosition, aTransactionId );

    if ( !IsActive( ) )

        {

        iSizeDes = new (ELeave) TPckgBuf<TInt>( );

        args.Set( KReturnPosition, iSizeDes );

        iServerClient.RegisterObserverL( iStatus, args );

        SetActive( );

        }

    else

        {

        iServerClient.AddObserver( args );

        }

    }

// ----------------------------------------------------------------------------

//

// ----------------------------------------------------------------------------

//

void CCPActiveNotifier::UnregisterL()

    {

    CP_DEBUG( _L8("CCPActiveNotifier::UnregisterL()" ) );

    if ( !IsActive( ) )

        {

        User::Leave( KErrNotFound );

        }

    else

        {

        Cancel( );

        delete iSizeDes;

        iSizeDes = NULL;

        }

    }

// ----------------------------------------------------------------------------

//

// ----------------------------------------------------------------------------

//

TBool CCPActiveNotifier::UnregisterL( TInt32 aTransactionId )

    {

    TBool last(EFalse);

    CP_DEBUG( _L8("CCPActiveNotifier::UnregisterL()" ) );

    MLiwNotifyCallback** observer = iObservers.Find(aTransactionId);

    if (observer)

        {

        CLiwGenericParamList* changeInfoList = 

                 CLiwGenericParamList::NewL( );

        CleanupStack::PushL( changeInfoList );

        CLiwGenericParamList* inParamList = CLiwGenericParamList::NewL( );

        CleanupStack::PushL( inParamList );

        changeInfoList->AppendL(TLiwGenericParam(EGenericParamError,

                TLiwVariant(CDataSourceInterface::ErrCodeConversion(KErrNone))));

        changeInfoList->AppendL(TLiwGenericParam(KErrorCode, TLiwVariant(

                CDataSourceInterface::ErrCodeConversion(KErrNone))));

		(*observer)->HandleNotifyL( aTransactionId, KLiwEventCanceled, *changeInfoList,

            *inParamList );     

        CleanupStack::PopAndDestroy( inParamList );

        CleanupStack::PopAndDestroy( changeInfoList );

        }

    else

        {

        User::Leave(KErrNotFound);

        }

    TIpcArgs args;

	args.Set( KTransactionPosition, aTransactionId );

    iServerClient.RemoveObserver( args );

    iObservers.Remove( aTransactionId );

	if( !iObservers.Count() )

		{

		UnregisterL();

		last = ETrue;

		}

	return last;

    }

// ----------------------------------------------------------------------------

//

// ----------------------------------------------------------------------------

//

void CCPActiveNotifier::UnregisterAllL(  )

    {

    CP_DEBUG( _L8("CCPActiveNotifier::UnregisterAllL()" ) );

    if (!iObservers.Count())

    	{

    	User::Leave( KErrNotFound );

    	}

    THashMapIter<TInt32, MLiwNotifyCallback*> iter( iObservers );

    const TInt32* transaction = iter.NextKey();

    while( transaction )

        {

        UnregisterL( *transaction );

        transaction = iter.NextKey( );

        }    

    }

// ----------------------------------------------------------------------------

//

// ----------------------------------------------------------------------------

//

void CCPActiveNotifier::RunL()

    {

    CP_DEBUG( _L8("CCPActiveNotifier::RunL()" ) );

    CLiwGenericParamList* eventParamList = CLiwGenericParamList::NewL();

    CleanupStack::PushL(eventParamList);

    TInt error = iStatus.Int();

    if (KErrNone == error)

        {

        RBuf8 outbuf;

        outbuf.CleanupClosePushL();

        outbuf.CreateL((*iSizeDes)());

        error = iServerClient.GetChangeInfoData(outbuf);

        RDesReadStream stream(outbuf);

        CleanupClosePushL(stream);

        eventParamList->InternalizeL(stream);

        CleanupStack::PopAndDestroy(&stream);

        delete iSizeDes;

        iSizeDes = NULL;

        CleanupStack::PopAndDestroy(&outbuf);

        }

    if (KErrNoMemory!=iStatus.Int())

        {

        RegisterAgainL();

        }

    NotifyObserversL(error, eventParamList);

    CleanupStack::PopAndDestroy(eventParamList);

    }

// ----------------------------------------------------------------------------

//

// ----------------------------------------------------------------------------

//

void CCPActiveNotifier::NotifyObserversL( TInt aErrorCode, 

		CLiwGenericParamList* aEventParamList  )

	{

    TInt event( KLiwEventInProgress );

    if ( aErrorCode == KErrCancel )

        {

        event = KLiwEventCanceled;

        }

    else if ( aErrorCode != KErrNone )

        {

        event = KLiwEventStopped;

        }	

    for ( TInt i = 0; i<aEventParamList->Count(); i++ )

    	{

    	TLiwGenericParam param;

    	param.PushL();

    	TLiwVariant mapsV;

    	mapsV.PushL();

    	aEventParamList->AtL( i, param );

    	mapsV = param.Value();

    	CLiwDefaultList* listOfMatchingMaps = CLiwDefaultList::NewLC( );

    	if (mapsV.Get( *listOfMatchingMaps ))

    		{

    		TLiwVariant transV;

    		transV.PushL();

    		TInt transIndex (listOfMatchingMaps->Count()-1);

    		listOfMatchingMaps->AtL(transIndex ,transV);

    		TInt32 transactionId ( KErrNotFound );

    		transV.Get( transactionId );

    		MLiwNotifyCallback** observer = iObservers.Find( transactionId );

    		if ( observer )

    			{

    			listOfMatchingMaps->Remove( transIndex );

    			CLiwGenericParamList* changeInfoList = 

											CLiwGenericParamList::NewL( );

    			CleanupStack::PushL( changeInfoList );

    		    CLiwGenericParamList* inParamList = CLiwGenericParamList::NewL( );

    		    CleanupStack::PushL( inParamList );

    			changeInfoList->AppendL( TLiwGenericParam( KChangeInfo,

    							TLiwVariant( listOfMatchingMaps ) ) );

    			changeInfoList->AppendL( TLiwGenericParam( EGenericParamError,

    			    TLiwVariant( CDataSourceInterface::ErrCodeConversion( aErrorCode ) ) ) );

    			changeInfoList->AppendL( TLiwGenericParam( KErrorCode,

    			    TLiwVariant( CDataSourceInterface::ErrCodeConversion( aErrorCode ) ) ) );

    			(*observer)->HandleNotifyL( transactionId, event, *changeInfoList,

    			        *inParamList );

    		    CleanupStack::PopAndDestroy( inParamList );

    		    CleanupStack::PopAndDestroy( changeInfoList );

    			}//if

    		CleanupStack::PopAndDestroy( &transV );

    		}//if

    	CleanupStack::PopAndDestroy( listOfMatchingMaps );

    	CleanupStack::PopAndDestroy( &mapsV );

    	CleanupStack::PopAndDestroy( &param );

    	}//for

	}

// ----------------------------------------------------------------------------

//

// ----------------------------------------------------------------------------

//

void CCPActiveNotifier::DoCancel()

    {

    CP_DEBUG( _L8("CCPActiveNotifier::DoCancel()" ) );

    iServerClient.UnregisterObserver( );

    }

// ----------------------------------------------------------------------------

//

// ----------------------------------------------------------------------------

//

TInt CCPActiveNotifier::RunError( TInt aError )

    {

    if (KErrNoMemory!=aError)

        {

        TRAP_IGNORE( RegisterAgainL( ) );

        }

    return KErrNone;

    }

// ----------------------------------------------------------------------------

//

// ----------------------------------------------------------------------------

//

CCPActiveNotifier::CCPActiveNotifier( RCPServerClient& aServerClient ) :

    CActive(EPriorityStandard)

    {

    iServerClient = aServerClient;

    CActiveScheduler::Add( this );

    }

// ----------------------------------------------------------------------------

//

// ----------------------------------------------------------------------------

//

void CCPActiveNotifier::ConstructL()

    {

    }

// ----------------------------------------------------------------------------

//

// ----------------------------------------------------------------------------

//

void CCPActiveNotifier::RegisterAgainL()

    {

    CP_DEBUG( _L8("CCPActiveNotifier::RegisterAgainL()" ) );

    if (!IsActive())

        {

        TIpcArgs args;

        args.Set(KTransactionPosition, KErrAlreadyExists);

        if (iSizeDes)

            {

            delete iSizeDes;

            iSizeDes = NULL;

            }

        iSizeDes = new (ELeave) TPckgBuf<TInt> ();

        args.Set(KReturnPosition, iSizeDes);

        iServerClient.RegisterObserverL(iStatus, args);

        SetActive();

        }

    }