/*

* Copyright (c) 2008-2009 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:  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()

    {

        FLOG( _L( "[USBOTGWATCHER]\tCUsbMessageNotificationObserver::ConstructL" ) );

    }

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

// 

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

//

CUsbMessageNotificationObserver* CUsbMessageNotificationObserver::NewL(

        RUsb* aUsb)

    {

        FLOG( _L( "[USBOTGWATCHER]\tCUsbMessageNotificationObserver::NewL" ) );

    CUsbMessageNotificationObserver* self =

            new (ELeave) CUsbMessageNotificationObserver(aUsb);

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self);

    return self;

    }

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

// 

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

//

CUsbMessageNotificationObserver::~CUsbMessageNotificationObserver()

    {

        FLOG( _L( "[USBOTGWATCHER]\tCUsbMessageNotificationObserver::~CUsbMessageNotificationObserver" ) );

    Cancel();

    iObservers.Close();

    }

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

// 

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

//

void CUsbMessageNotificationObserver::SubscribeL(

        MUsbMessageNotificationObserver* aObserver)

    {

        FLOG( _L( "[USBOTGWATCHER]\tCUsbMessageNotificationObserver::SubscribeL" ) );

    User::LeaveIfError(iObservers.Append(aObserver));

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

        {

        iUsb->MessageNotification(iStatus, iMessage);

        SetActive();

        }

    }

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

// 

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

//

void CUsbMessageNotificationObserver::UnsubscribeL(

        MUsbMessageNotificationObserver* aObserver)

    {

        FLOG( _L( "[USBOTGWATCHER]\tCUsbMessageNotificationObserver::UnsubscribeL" ) );

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

            {

            FLOG( _L( "[USBOTGWATCHER]\tCUsbMessageNotificationObserver::UnsubscribeL No observers" ) );

            return;

            }

    TInt i(0);

    while (i < iObservers.Count() && aObserver != iObservers[i])

        ++i;

    if (aObserver == iObservers[i]) // found

        {

        iObservers.Remove(i);

        }

    else

        {

            FLOG( _L( "[USBOTGWATCHER]\tCUsbMessageNotificationObserver::UnsubscribeL CanNotFindMessageNotificationObserver" ) );

        Panic(ECanNotFindMessageNotificationObserver);

        }

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

        {

        // cancel pending request

        Cancel();

        }

    }

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

//

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

//

void CUsbMessageNotificationObserver::RunL()

    {

    // 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();

        // Log the event

        FTRACE( FPrint(_L( "[USBOTGWATCHER]\tCUsbMessageNotificationObserver::RunL iMessage = %d" ), message));

    // then process property change

    switch (message)

        {

        case KErrUsbBadHubPosition:

            {

                FLOG( _L( "[USBOTGWATCHER]\tCUsbMessageNotificationObserver::RunL HubBadPosition" ) );

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

                {

                iObservers[i]->BadHubPositionL();

                }

            break;

            }

        case KErrUsbOtgVbusError:

            {

                FLOG( _L( "[USBOTGWATCHER]\tCUsbMessageNotificationObserver::RunL VBusError" ) );

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

                {

                iObservers[i]->VBusErrorL();

                }

            break;

            }

        case KUsbMessageSrpReceived:

            {

                FLOG( _L( "[USBOTGWATCHER]\tCUsbMessageNotificationObserver::RunL SRP received" ) );

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

                {

                iObservers[i]->SrpReceivedL();

                }

            break;

            }

        case KUsbMessageRequestSession:

            {

                FLOG( _L( "[USBOTGWATCHER]\tCUsbMessageNotificationObserver::RunL 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)

    {

        FTRACE( FPrint(_L( "[USBOTGWATCHER]\tCUsbMessageNotificationObserver::RunError aError = %d" ), aError));

    // try to recover and continue	

    return KErrNone;

    }