/*

* 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:  Blink/show Usb indicator notifier implementation

 *

*/

#include <AknSmallIndicator.h>

#include <avkon.hrh>

#include <usbuinotif.h>

#include "cusbindicatornotifier.h"

#include "cusbstate.h"

#include "definitions.h"

#include "debug.h"

#include "panic.h"

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

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

// Two-phased constructor.

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

//

CUsbIndicatorNotifier* CUsbIndicatorNotifier::NewL(CUsbNotifManager* aNotifManager, CUsbOtgWatcher* aOtgWatcher)

    {

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

    CUsbIndicatorNotifier* self = new (ELeave) CUsbIndicatorNotifier(aNotifManager, aOtgWatcher);

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self);

    return self;

    }

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

// Destructor

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

//

CUsbIndicatorNotifier::~CUsbIndicatorNotifier()

    {

    FLOG( _L( "[USBOTGWATCHER]\tCUsbIndicatorNotifier::~CUsbIndicatorNotifier" ) );

    Close();

    delete iIconBlinkingTimer;

    // Unsubscribe from VBus change notifications

    }

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

// C++ constructor

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

//

CUsbIndicatorNotifier::CUsbIndicatorNotifier(CUsbNotifManager* aNotifManager, CUsbOtgWatcher* aOtgWatcher) :

    CUsbNotifier(aNotifManager, KUsbUiNotifOtgIndicator, NULL), iOtgWatcher(aOtgWatcher)

    {

    FLOG( _L( "[USBOTGWATCHER]\tCUsbIndicatorNotifier::CUsbIndicatorNotifier" ) );

    //To be changed to EAknIndicatorStateAnimate and remove iIconBlinkingTimer

    //when AVKON implements animation form of usb indicator.

    iIndicatorState = EAknIndicatorStateOn;

    }

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

// Second-phase constructor

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

//

void CUsbIndicatorNotifier::ConstructL()

    {

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

    // Subscribe for VBus change notifications

    iOtgWatcher->VBusObserver()->SubscribeL(this);

    // Subscribe for otg watcher states change notifications

    iOtgWatcher->SubscribeL(this);

    iIconBlinkingTimer = CUsbTimer::NewL(this, EIconBlinkingTimer);

    // check here for condition to set usb indicator

    SetIndicatorL();

    }

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

// Show/hide static icon of the indicator. 

// If the indicator is blinking, stop blinking it and show/hide the static 

// form of the indicator.

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

//

void CUsbIndicatorNotifier::ShowStaticL(TBool aVisible)

    {

    FTRACE( FPrint (_L( "[USBOTGWATCHER]\tCUsbIndicatorNotifier::ShowStaticL, aVisible=%d" ), aVisible));

    iIconBlinkingTimer->Cancel();

    SetIndicatorStateL(aVisible ? EAknIndicatorStateOn : EAknIndicatorStateOff);    

    }

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

// 

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

//

void CUsbIndicatorNotifier::BlinkL()

    {

    FLOG( _L( "[USBOTGWATCHER]\tCUsbIndicatorNotifier::BlinkL" ));

    // Will be canceled if active in After()

    iIconBlinkingTimer->After(0);

    }

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

// From base class CUsbNotifier

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

//

void CUsbIndicatorNotifier::ShowL()

    {

    FLOG( _L( "[USBOTGWATCHER]\tCUsbIndicatorNotifier::ShowL" ) );

    ShowStaticL(ETrue);

    }

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

// From CUsbNotifier

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

//

void CUsbIndicatorNotifier::Close()

    {

    FLOG( _L( "[USBOTGWATCHER]\tCUsbIndicatorNotifier::Close" ) );

    iIconBlinkingTimer->Cancel();

    TRAP_IGNORE( ShowStaticL(EFalse) );

    }

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

// From MUsbTimerObserver

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

// 

void CUsbIndicatorNotifier::TimerElapsedL(TUsbTimerId aTimerId)

    {

    switch (aTimerId)

        {

        case EIconBlinkingTimer:

            {

            SetIndicatorStateL(iIndicatorState ? EAknIndicatorStateOn : EAknIndicatorStateOff);    

            iIndicatorState = (iIndicatorState == EAknIndicatorStateOn

                                    ? EAknIndicatorStateOff : EAknIndicatorStateOn);

            // Will be canceled if active in After()

            iIconBlinkingTimer->After(KUsbIndicatorBlinkingInterval);

            break;

            }

        default:

            {

            FLOG( _L( "[USBOTGWATCHER]\tCUsbIndicatorNotifier::TimerElapsedL - Unknown timer" ) );

            Panic(EWrongTimerId);

            }

        }

    }

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

// Set USB indicator On or Off

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

//

void CUsbIndicatorNotifier::SetIndicatorStateL(const TInt aState)

    {

    FTRACE( FPrint (_L( "[USBOTGWATCHER]\tCUsbIndicatorNotifier::SetIndicatorStateL - aState=%d" ), aState));

    CAknSmallIndicator* indicator = CAknSmallIndicator::NewLC(TUid::Uid(EAknIndicatorUSBConnection));

    indicator->SetIndicatorStateL( aState );

    CleanupStack::PopAndDestroy( indicator ); //indicator    

    }

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

// 

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

//

void CUsbIndicatorNotifier::OtgWatcherStateChangedL(TUsbStateIds aState)

    {

    FTRACE( FPrint (_L( "[USBOTGWATCHER]\tCUsbIndicatorNotifier::OtgWatcherStateChangedL - aState=%d" ), aState));

    SetIndicatorL();

    }

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

// 

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

//

void CUsbIndicatorNotifier::VBusDownL()

    {

    FLOG( _L( "[USBOTGWATCHER]\tCUsbIndicatorNotifier::VBusDownL" ) );

    SetIndicatorL();

    }

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

// 

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

//

void CUsbIndicatorNotifier::VBusUpL()

    {

    FLOG( _L( "[USBOTGWATCHER]\tCUsbIndicatorNotifier::VBusUpL" ) );

    SetIndicatorL();

    }

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

// 

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

//  

void CUsbIndicatorNotifier::VBusObserverErrorL(TInt aError)

    {

    FLOG( _L( "[USBOTGWATCHER]\tCUsbIndicatorNotifier::VBusObserverErrorL" ) );

    // do not care

    }

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

// 

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

//  

void CUsbIndicatorNotifier::SetIndicatorL()

    {

    FLOG( _L( "[USBOTGWATCHER]\tCUsbIndicatorNotifier::SetIndicatorL" ) );

    // if VBus Up and we are host -> show indicator

    if ((iOtgWatcher->VBusObserver()->VBus() == CUsbVBusObserver::EVBusUp) &&

            (iOtgWatcher->CurrentHostState()->Id() == EUsbStateHostAHost))

        {

        ShowStaticL(ETrue);

        }

    // if VBus up and we are not host -> Blink indicator

    else if((iOtgWatcher->VBusObserver()->VBus() == CUsbVBusObserver::EVBusUp) &&

            (iOtgWatcher->CurrentHostState()->Id() != EUsbStateHostAHost))

        {

        BlinkL();

        }

    else

    // Otherwise do not show indicator

        {

        ShowStaticL(EFalse);

        }

    }

// End of file