/*

* Copyright (c) 2006-2007 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:  DRM Rights Information handling implementation class

*

*/

// INCLUDE FILES

#include <caf/caftypes.h>

#include <Oma2Agent.h>

#include <utf.h>

#include <drmutilitytypes.h>

#include <drmasyncobserver.h>

#include "DrmRightsInfoImpl.h"

#include "DrmRightsInfoData.h"

#include "drmutilitycommon.h"

// CONSTANTS

const TInt KCommandCheckRights( 1 );

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

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

// CDrmRightsInfoImpl::CDrmRightsInfoImpl

// C++ default constructor can NOT contain any code, that

// might leave.

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

//

DRM::CDrmRightsInfoImpl::CDrmRightsInfoImpl(): CActive( EPriorityStandard )

    {

    }

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

// CDrmRightsInfoImpl::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

void DRM::CDrmRightsInfoImpl::ConstructL()

    {

    iDrmUtilityCommon = DRM::CDrmUtilityCommon::NewL();

    User::LeaveIfError( iOmaClient.Connect() );

    User::LeaveIfError( iSemaphore.CreateLocal( 1 ) );

    }

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

// CDrmRightsInfoImpl::NewL

// Two-phased constructor.

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

//

EXPORT_C DRM::CDrmRightsInfoImpl* DRM::CDrmRightsInfoImpl::NewL()

    {

    DRM::CDrmRightsInfoImpl* self( NewLC() );

    CleanupStack::Pop( self );

    return self;

    }

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

// CDrmRightsInfoImpl::NewLC

// Two-phased constructor.

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

//

EXPORT_C DRM::CDrmRightsInfoImpl* DRM::CDrmRightsInfoImpl::NewLC()

    {

    DRM::CDrmRightsInfoImpl* self( new( ELeave ) CDrmRightsInfoImpl );

    CleanupStack::PushL( self );

    self->ConstructL();

    return self;

    }

// Destructor

DRM::CDrmRightsInfoImpl::~CDrmRightsInfoImpl()

    {

    DRM::CDrmRightsInfoData* data( PopFront() );

    // Empty the queue:

    while ( data )

        {

        // Complete the outstanding requestest with cancel

        data->iObserver->OperationCompleted( data->iOperationId, KErrCancel );

        delete data;

        data = PopFront();

        }

    delete iDrmUtilityCommon;

    iOmaClient.Close();

    // Close the semaphone

    iSemaphore.Close();

    // Remove the object from active scheduler etc.

    if ( IsAdded() )

        {

        Deque();

        }

    }

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

// CDrmRightsInfo::CheckRightsL

// Syncronous method

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

//

EXPORT_C void DRM::CDrmRightsInfoImpl::CheckRightsL(

    const TDesC& aUniqueId,

    ContentAccess::TIntent aIntent,

    DRM::TDrmRightsInfo& aDetails )

    {

    DRM::CDrmRightsInfoData* data( DRM::CDrmRightsInfoData::NewLC() );

    data->iUniqueId = aUniqueId.AllocL();

    TRAPD( err, data->iUniqueId8 =

                CnvUtfConverter::ConvertFromUnicodeToUtf8L( aUniqueId ) );

    if ( err )

        {

        data->iUniqueId8 = NULL;

        }

    data->iIntent = aIntent;

    data->iDetails = &aDetails;

    PerformCheckRightsL( *data );

    CleanupStack::PopAndDestroy( data );

    }

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

// CDrmRightsInfo::CheckRightsAsyncL

// Asyncronous method

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

//

EXPORT_C TInt DRM::CDrmRightsInfoImpl::CheckRightsAsyncL(

    const TDesC& aUniqueId,

    ContentAccess::TIntent aIntent,

    DRM::TDrmRightsInfo& aDetails,

    DRM::MDrmAsyncObserver& aObserver )

    {

    // Create Queue object:

    DRM::CDrmRightsInfoData* data( DRM::CDrmRightsInfoData::NewLC() );

    TRequestStatus* status( &iStatus );

    data->iObserver = &aObserver;

    data->iOperationId = reinterpret_cast<TInt>( data );

    data->iOperation = KCommandCheckRights;

    data->iUniqueId = aUniqueId.AllocL();

    TRAPD( err, data->iUniqueId8 =

                CnvUtfConverter::ConvertFromUnicodeToUtf8L( aUniqueId ) );

    if ( err )

        {

        data->iUniqueId8 = NULL;

        }

    data->iIntent = aIntent;

    data->iDetails = &aDetails;

    // Add it to the queue:

    AppendToQueue( data );

    // Pop it from the cleanup stack

    CleanupStack::Pop( data );

    if( !IsAdded() )

        {

        CActiveScheduler::Add( this );

        }

    if ( !IsActive() )

        {

        SetActive();

        // complete internal request:

        User::RequestComplete( status, KErrNone );

        }

    return data->iOperationId;

    }

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

// CDrmRightsInfoImpl::CancelOperation

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

//

EXPORT_C TInt DRM::CDrmRightsInfoImpl::CancelOperation( TInt aOperationId )

    {

    // Critical area start:

    iSemaphore.Wait();

    TBool found( EFalse );

    DRM::CDrmRightsInfoData* previousData( NULL );

    DRM::CDrmRightsInfoData* currentData( iFirst );

    while ( currentData )

        {

        if ( currentData->iOperationId == aOperationId )

            {

            found = ETrue;

            //Update the previous link

            if ( previousData )

                {

                previousData->iNext = currentData->iNext;

                }

            else

                {

                iFirst = currentData->iNext;

                }

            //If the current is the only one, set iLast NULL

            if ( !iFirst )

                {

                iLast = NULL;

                }

            //If only one left, set it also to be the iLast

            else if ( iFirst && !currentData->iNext )

                {

                iLast = iFirst;

                }

            //Delete the cancelled operation

            currentData->iObserver->OperationCompleted( currentData->iOperationId, KErrCancel );

            delete currentData;

            currentData = NULL;

            }

        else

            {

            previousData = currentData;

            currentData = currentData->iNext;

            }

        }

    if( !found )

        {

        // Critical Area End

        iSemaphore.Signal();

        return KErrNotFound;

        }

    // Critical Area End

    iSemaphore.Signal();

    return KErrNone;

    }

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

// CDrmRightsInfoImpl::DoCancel

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

//

void DRM::CDrmRightsInfoImpl::DoCancel()

    {

    }

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

// CDrmRightsInfoImpl::RunL

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

//

void DRM::CDrmRightsInfoImpl::RunL()

    {

    DRM::CDrmRightsInfoData* data( PopFront() );

    TRequestStatus* status( &iStatus );

    if( !data )

        {

        return;

        }

    CleanupStack::PushL( data );

    switch ( data->iOperation )

        {

        case KCommandCheckRights:

          // Take this into the "current" variable in case an error occurs

          iObserver = data->iObserver;

          iOperationId = data->iOperationId;

          // Perform the operation

          PerformCheckRightsL( *data );

          // Compelete the client request

          iObserver->OperationCompleted( iOperationId, KErrNone );

          break;

        default:

          // Do nothing

          break;

        }

    // destroy the object:

    CleanupStack::PopAndDestroy( data );

    // Get ready for another round:

    SetActive();

    // complete internal request:

    User::RequestComplete( status, KErrNone );

    }

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

// CDrmRightsInfoImpl::RunError

// If an error occurs complete the async request with it

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

//

TInt DRM::CDrmRightsInfoImpl::RunError( TInt aError )

    {

    iObserver->OperationCompleted( iOperationId, aError );

    iObserver = NULL;

    iOperationId = NULL;

    return KErrNone;

    }

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

// CDrmRightsInfoImpl::PerformCheckRightsL

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

//

void DRM::CDrmRightsInfoImpl::PerformCheckRightsL(

    DRM::CDrmRightsInfoData& aData )

    {

    // Check for Oma Drm Rights, if not found, check for WmDrm Rights

    TInt omaerror( KErrNone );

    TInt wmerror( KErrNone );

    TUint32 reason( 0 );

    // if the outcome is KErrCANoRights we have the check both:

    omaerror = iOmaClient.CheckRights( aData.iIntent, *aData.iUniqueId8,  reason );

    if ( omaerror == KErrCANoRights )

        {

        *aData.iDetails = DRM::EURightsInfoMissing;

        // Check Also WmDrm

        // wmerror = check rights for WMDRM

        // Show info for wm drm error

        if ( !wmerror )

            {

            }

        }

    else

        {

        if ( !omaerror )

            {

            *aData.iDetails = DRM::EURightsInfoValid;

            }

        else

            {

            *aData.iDetails = iDrmUtilityCommon->GetOmaRightsStatusL(

                                                        aData.iUniqueId8,

                                                        aData.iIntent,

                                                        NULL );

            }

        }

    }

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

// CDrmRightsInfoImpl::AppendToQueue

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

//

void DRM::CDrmRightsInfoImpl::AppendToQueue( DRM::CDrmRightsInfoData* aData )

    {

    // Critical area start:

    iSemaphore.Wait();

    if ( !iLast )

        {

        iFirst = aData;

        iLast = iFirst;

        }

    else

        {

        iLast->iNext = aData;

        iLast = aData;

        }

    // Critical area end

    iSemaphore.Signal();

    }

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

// CDrmRightsInfoImpl::PopFront

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

//

DRM::CDrmRightsInfoData* DRM::CDrmRightsInfoImpl::PopFront()

    {

    DRM::CDrmRightsInfoData* data = NULL;

    // If there is nothing in the queue return NULL

    if ( !iFirst )

        {

        return data;

        }

    // Critical area start:

    iSemaphore.Wait();

    data = iFirst;

    // Set the first and the next

    iFirst = iFirst->iNext;

    // reset the pointer on data

    data->iNext = NULL;

    // if there is no next in iFirst, this is the last or if there is no iFirst

    if ( !iFirst || !iFirst->iNext )

        {

        iLast = iFirst;

        }

    // Critical Area End

    iSemaphore.Signal();

    return data;

    }

//  End of File