// Copyright (c) 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 <mtp/tmtptyperequest.h>

#include <mtp/cmtpstoragemetadata.h>

#include <mtp/mmtpconnection.h>

#include <mtp/mmtpdataproviderframework.h>

#include <mtp/mtpdataproviderapitypes.h>

#include <mtp/mtpprotocolconstants.h>

#include "cmtppictbridgedp.h"

#include "cptpserver.h"

#include "mtppictbridgedpconst.h"

#include "mtppictbridgedppanic.h"

#include "mtppictbridgedpprocessor.h"

#include "cmtppictbridgeenumerator.h"

#include "ptpdef.h"

LOCAL_D const TInt KArrayGranularity = 3;

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

// PictBridge data provider factory method.

// @return A pointer to a pictbridge data provider object. Ownership is transfered.

// @leave One of the system wide error codes, if a processing failure occurs.

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

//

TAny* CMTPPictBridgeDataProvider::NewL(TAny* aParams)

    {

    CMTPPictBridgeDataProvider* self = new (ELeave) CMTPPictBridgeDataProvider(aParams);

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self);

    return self;

    }

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

// Constructor

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

//

CMTPPictBridgeDataProvider::CMTPPictBridgeDataProvider(TAny* aParams):

    CMTPDataProviderPlugin(aParams),

    iActiveProcessors(KArrayGranularity)

    {

    }

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

// second phase constructor

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

//

void CMTPPictBridgeDataProvider::ConstructL()

    {

    iPictBridgeEnumeratorP = CMTPPictBridgeEnumerator::NewL(Framework(), *this);

    iServerP = CPtpServer::NewL(Framework(), *this);

    }

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

// Destructor

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

//

CMTPPictBridgeDataProvider::~CMTPPictBridgeDataProvider()

    {

    TUint count(iActiveProcessors.Count());

    while (count--)

        {

        iActiveProcessors[count]->Release();

        }

    iActiveProcessors.Close();

    delete iPictBridgeEnumeratorP;

    delete iServerP;

    }

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

// Cancel

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

//

void CMTPPictBridgeDataProvider::Cancel()

    {

    // nothing to cancel

    }

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

// 

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

//

void CMTPPictBridgeDataProvider::ProcessEventL(const TMTPTypeEvent& aEvent, MMTPConnection& aConnection)

    {

    TInt idx = LocateRequestProcessorL(aEvent, aConnection);

    if (idx != KErrNotFound)

        {

        iActiveProcessors[idx]->HandleEventL(aEvent);

        }

    }

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

// Process notifications from the initiator

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

//

void CMTPPictBridgeDataProvider::ProcessNotificationL(TMTPNotification aNotification, const TAny* aParams)

    {

    switch (aNotification)

        {

    case EMTPSessionClosed:

        SessionClosedL(*reinterpret_cast<const TMTPNotificationParamsSessionChange*>(aParams));

        break;

    case EMTPSessionOpened:

        SessionOpenedL(*reinterpret_cast<const TMTPNotificationParamsSessionChange*>(aParams));

        break;

    default:

        // Ignore all other notifications.

        break;

        }

    }

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

// Process requests from the initiator

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

//

void CMTPPictBridgeDataProvider::ProcessRequestPhaseL(TMTPTransactionPhase aPhase, const TMTPTypeRequest& aRequest, MMTPConnection& aConnection)

    {    

    TInt idx = LocateRequestProcessorL(aRequest, aConnection);

    __ASSERT_DEBUG((idx != KErrNotFound), Panic(EMTPPictBridgeDpNoMatchingProcessor));

    MMTPRequestProcessor* processorP(iActiveProcessors[idx]);

    TBool result(processorP->HandleRequestL(aRequest, aPhase));

    if (result)    //destroy the processor

        {

        processorP->Release();

        iActiveProcessors.Remove(idx);

        }

    }

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

// Starts the object enumeration

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

//

void CMTPPictBridgeDataProvider::StartObjectEnumerationL(TUint32 aStorageId, TBool /*aPersistentFullEnumeration*/)

    {

    iPictBridgeEnumeratorP->EnumerateObjectsL(aStorageId);

    }

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

// Storage enumeration is not needed, just declared complete

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

//

void CMTPPictBridgeDataProvider::StartStorageEnumerationL()

    {

    iPictBridgeEnumeratorP->EnumerateStoragesL();

    }

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

// 

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

//

void CMTPPictBridgeDataProvider::Supported(TMTPSupportCategory aCategory, RArray<TUint>& aArray) const

    {   

    switch (aCategory) 

        {        

    case EEvents:

        aArray.Append(EMTPEventCodeRequestObjectTransfer);

        break;

    case EObjectPlaybackFormats:

    case EObjectCaptureFormats:

         break;

    case EObjectProperties:

        {

        TInt count(sizeof(KMTPPictBridgeDpSupportedProperties) / sizeof(KMTPPictBridgeDpSupportedProperties[0]));

        for (TInt i = 0; i < count; i++ )

            {

            aArray.Append( KMTPPictBridgeDpSupportedProperties[i] );

            }

        }

        break; 

    case EOperations:

        {

        TInt count(sizeof(KMTPPictBridgeDpSupportedOperations) / sizeof(KMTPPictBridgeDpSupportedOperations[0]));

        for (TInt i = 0; (i < count); i++)

            {

            aArray.Append(KMTPPictBridgeDpSupportedOperations[i]);

            }

        }

        break;  

    case EStorageSystemTypes:

        aArray.Append(CMTPStorageMetaData::ESystemTypeDefaultFileSystem);

        break; 

    default:

        // Unrecognised category, leave aArray unmodified.

        break;

        }

    }

void CMTPPictBridgeDataProvider::SupportedL(TMTPSupportCategory aCategory, CDesCArray& /*aStrings*/) const

    {

    switch (aCategory) 

        {

        case EFolderExclusionSets:

            break;

        case EFormatExtensionSets:

            break;

        default:

            break;

        }

    }

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

// CMTPPictBridgeDataProvider::NotifyStorageEnumerationCompleteL()

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

//

void CMTPPictBridgeDataProvider::NotifyStorageEnumerationCompleteL()

    {

    }

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

// 

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

//

void CMTPPictBridgeDataProvider::NotifyEnumerationCompleteL(TUint32 aStorageId, TInt aErr )

#else

void CMTPPictBridgeDataProvider::NotifyEnumerationCompleteL(TUint32 aStorageId, TInt /* aErr*/ )

#endif

    {

    Framework().ObjectEnumerationCompleteL(aStorageId);

    }

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

// Find or create a request processor that can process the specified request.

// @param aRequest    The request to be processed

// @param aConnection The connection from which the request comes

// @return the idx of the found/created request processor

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

//

TInt CMTPPictBridgeDataProvider::LocateRequestProcessorL(const TMTPTypeRequest& aRequest, MMTPConnection& aConnection)

    {

    TInt idx(KErrNotFound);

    TInt count(iActiveProcessors.Count());

    for (TInt i = 0; (i < count); i++)

        {

        if (iActiveProcessors[i]->Match(aRequest, aConnection))

            {

            idx = i;

            break;

            }

        }

    if (idx == KErrNotFound)

        {

        MMTPRequestProcessor* processorP = MTPPictBridgeDpProcessor::CreateL(Framework(), aRequest, aConnection, *this);

        CleanupReleasePushL(*processorP);

        iActiveProcessors.AppendL(processorP);

        CleanupStack::Pop();

        idx = count;

        }

    return idx;

    }

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

// Find or create a request processor that can process the specified event.

// @param aEvent    The event to be processed

// @param aConnection The connection from which the request comes

// @return the idx of the found request processor, KErrNotFound if not found

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

//

TInt CMTPPictBridgeDataProvider::LocateRequestProcessorL(const TMTPTypeEvent& aEvent, MMTPConnection& aConnection)

    {

    TInt idx(KErrNotFound);

    TInt count(iActiveProcessors.Count());

    for (TInt i = 0; (i < count); i++)

        {

        if (iActiveProcessors[i]->Match(aEvent, aConnection))

            {

            idx = i;

            break;

            }

        }    

    return idx;

    }

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

// Cleans up outstanding request processors when a session is closed.

// @param aSession notification parameter block

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

//

void CMTPPictBridgeDataProvider::SessionClosedL(const TMTPNotificationParamsSessionChange& aSession)

    {

    TInt count = iActiveProcessors.Count();

    while(count--)

        {

        MMTPRequestProcessor* processorP = iActiveProcessors[count];

        TUint32 sessionId = processorP->SessionId();

        if((sessionId == aSession.iMTPId) && (processorP->Connection().ConnectionId() == aSession.iConnection.ConnectionId()))

            {

            processorP->Release();

            iActiveProcessors.Remove(count);

            }

        }

    iServerP->MtpSessionClosed();

    }

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

// Prepares for a newly-opened session.

// @param aSession notification parameter block

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

//

void CMTPPictBridgeDataProvider::SessionOpenedL(const TMTPNotificationParamsSessionChange& aSession )

#else

void CMTPPictBridgeDataProvider::SessionOpenedL(const TMTPNotificationParamsSessionChange& /*aSession*/ )

#endif

    {

    iServerP->MtpSessionOpened();

    }

TUint32 CMTPPictBridgeDataProvider::DeviceDiscoveryHandle() const

    {    

    return iPictBridgeEnumeratorP->DeviceDiscoveryHandle();

    }