/*

 * Copyright (c) 2008 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:  Implementation

 *

 */

#include <usbman.h>

#include <d32usbdi_errors.h>

#include <d32otgdi_errors.h>

#include "cusbmessagenotificationobserver.h"

#include "definitions.h" 

#include "debug.h"

#include "panic.h"

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

// 

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

//

CUsbMessageNotificationObserver::CUsbMessageNotificationObserver(RUsb* aUsb) :

    CActive(EPriorityStandard), iUsb(aUsb)

    {

    CActiveScheduler::Add(this);

    }

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

// 

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

//

void CUsbMessageNotificationObserver::ConstructL()

    {

    LOG_FUNC

    }

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

// 

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

//

CUsbMessageNotificationObserver* CUsbMessageNotificationObserver::NewL(

        RUsb* aUsb)

    {

    LOG_FUNC

    CUsbMessageNotificationObserver* self =

            new (ELeave) CUsbMessageNotificationObserver(aUsb);

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self);

    return self;

    }

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

// 

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

//

CUsbMessageNotificationObserver::~CUsbMessageNotificationObserver()

    {

    LOG_FUNC

    Cancel();

    iObservers.Close();

    }

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

// 

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

//

void CUsbMessageNotificationObserver::SubscribeL(

        MUsbMessageNotificationObserver& aObserver)

    {

    LOG_FUNC

    // check if the same observer already exist in a list

    if (KErrNotFound != iObservers.Find(&aObserver))

        {

        LOG("Observer already exists");

        PANIC( EObserverAlreadyExists);

        return;

        }

    iObservers.AppendL(&aObserver);

    if (KFirst == iObservers.Count()) // first item

        {

        iUsb->MessageNotification(iStatus, iMessage);

        SetActive();

        }

    }

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

// 

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

//

void CUsbMessageNotificationObserver::UnsubscribeL(

        MUsbMessageNotificationObserver& aObserver)

    {

    LOG_FUNC

    TInt i(iObservers.Find(&aObserver));

    if (KErrNotFound == i)

        {

        LOG("Observer not found" )

        PANIC( ECanNotFindMessageNotificationObserver);

        return;

        }

    iObservers.Remove(i);

    if (0 == iObservers.Count()) // no items

        {

        // cancel pending request

        Cancel();

        }

    }

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

//

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

//

void CUsbMessageNotificationObserver::RunL()

    {

    // Log the event

    LOG1( "Message notification observer iMessage = %d" , iMessage);

    // if error occured, tell to Observers

    if (KErrNone != iStatus.Int())

        {

        for (TInt i(0); i < iObservers.Count(); ++i)

            {

            iObservers[i]->MessageNotificationErrorL(iStatus.Int());

            }

        return;

        }

    TInt message(iMessage);

    // re-issue request first

    iUsb->MessageNotification(iStatus, iMessage);

    SetActive();

    // then process property change

    switch (message)

        {

        case KErrUsbBadHubPosition:

            {

            LOG("HubBadPosition" );

            for (TInt i(0); i < iObservers.Count(); ++i)

                {

                iObservers[i]->BadHubPositionL();

                }

            break;

            }

        case KErrUsbOtgVbusError:

            {

            LOG( "VBusError");

            for (TInt i(0); i < iObservers.Count(); ++i)

                {

                iObservers[i]->VBusErrorL();

                }

            break;

            }

        case KUsbMessageSrpReceived:

            {

            LOG("SRP received" );

            for (TInt i(0); i < iObservers.Count(); ++i)

                {

                iObservers[i]->SrpReceivedL();

                }

            break;

            }

        case KUsbMessageRequestSession:

            {

            LOG("Session requested" );

            for (TInt i(0); i < iObservers.Count(); ++i)

                {

                iObservers[i]->SessionRequestedL();

                }

            break;

            }

            // notify states with other messages  

        default:

            {

            for (TInt i(0); i < iObservers.Count(); ++i)

                {

                iObservers[i]->MessageNotificationReceivedL(message);

                }

            break;

            }

        }

    }

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

// 

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

//

void CUsbMessageNotificationObserver::DoCancel()

    {

    iUsb->MessageNotificationCancel();

    }

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

// 

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

//

TInt CUsbMessageNotificationObserver::RunError(TInt aError)

    {

    LOG_FUNC

    LOG1( "aError = %d" , aError);

    // try to recover and continue	

    return KErrNone;

    }