/*

* Copyright (c) 2005-2007 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: 

*

*/

// INCLUDE FILES

#include "CPbk2AddFavoritesVisibility.h"

#include "CPbk2AddFavoritesVisibilityImpl.h"

// Pbk2

#include <MPbk2ContactViewSupplier.h>

#include <MPbk2ContactViewSupplier2.h>

#include <MVPbkContactViewBase.h>

#include <CPbk2StoreConfiguration.h>

#include <VPbkStoreUriDefinitions.hrh>

#include <MPbk2ApplicationServices.h>

// Virtual Phonebook

#include <VPbkContactStoreUris.h>

#include <TVPbkContactStoreUriPtr.h>

#include <MVPbkContactStore.h>

#include <CVPbkContactManager.h>

#include <MVPbkContactStoreList.h>

namespace

    {

#ifdef _DEBUG

enum TPanicCode

    {

    EPanicContactViewError = 0,

    EPanicUnknownView

    };

/// Unnamed namespace for local definitions

    void Panic(TInt aReason)

        {

        _LIT(KPanicText, "CPbk2AddFav-vis");

        User::Panic(KPanicText, aReason);

        }

#endif // _DEBUG

    } // namespace

CPbk2AddFavoritesVisibility::CPbk2AddFavoritesVisibility(MPbk2ApplicationServices& aAppServices)

    : iTcCount(KErrNotFound), iAllContactsCount(KErrNotFound), iApplicationServices(aAppServices)

	{

	}

CPbk2AddFavoritesVisibility::~CPbk2AddFavoritesVisibility()

    {

    delete iImpl;

    if ( iTopContactsView )

        {

        iTopContactsView->RemoveObserver( *this );

        }

    if ( iAllContactsView )

        {

        iAllContactsView->RemoveObserver( *this );

        }

    StopObservingStoreConfiguration();        

    }

void CPbk2AddFavoritesVisibility::ConstructL(

        TInt aCmdId)

    {

    iImpl = CPbk2AddFavoritesVisibilityImpl::NewL(aCmdId);

    StartL();

    }

CPbk2AddFavoritesVisibility* CPbk2AddFavoritesVisibility::NewL(        

    TInt aCmdId, MPbk2ApplicationServices& aAppServices)

	{

	CPbk2AddFavoritesVisibility* self =

	    new (ELeave) CPbk2AddFavoritesVisibility(aAppServices);

    CleanupStack::PushL( self );

    self->ConstructL(aCmdId);

    CleanupStack::Pop( self );

	return self;

	}

void CPbk2AddFavoritesVisibility::StartL()    

    {

    switch(iImpl->Variation())

        {

        case EVisibilityUntilFirstFavorite:

        case EVisibilityAlwaysON:

            {

        	if ( !ObserveContactViewsL() )

                {

                NotifyVisibilityChange();

                }

            // to prevent double addition of the same observer

            StopObservingStoreConfiguration();        		

        	StartObservingStoreConfigurationL();                                

            }

         case EVisibilityAlwaysOFF: // fallthrough

         default:            

            {

            // do nothing

            }                                

            break;

        }    

    }

TBool CPbk2AddFavoritesVisibility::ObserveContactViewsL()

    {

    MPbk2ContactViewSupplier2* viewSupplierExtension = 

	    reinterpret_cast<MPbk2ContactViewSupplier2*>(

	        iApplicationServices.ViewSupplier().

	            MPbk2ContactViewSupplierExtension(

                    KMPbk2ContactViewSupplierExtension2Uid ));

    TBool res = EFalse;

    if ( viewSupplierExtension != NULL )

        {

    	iTopContactsView = 

            viewSupplierExtension->TopContactsViewL();

        }

    if( iTopContactsView )

        {

        iTopContactsView->AddObserverL(*this);

    	iAllContactsView = 

        iApplicationServices.ViewSupplier().AllContactsViewL();

        iAllContactsView->AddObserverL( *this );

        res = ETrue;        

        }

    return res; // observing both contact views or not

    }

void CPbk2AddFavoritesVisibility::StartObservingStoreConfigurationL()

    {

    CPbk2StoreConfiguration &storeConfig = 

    iApplicationServices.StoreConfiguration();

    storeConfig.AddObserverL(*this);

    }

void CPbk2AddFavoritesVisibility::StopObservingStoreConfiguration()

    {

    CPbk2StoreConfiguration &storeConfig = iApplicationServices.StoreConfiguration();

    storeConfig.RemoveObserver(*this);

    }

void CPbk2AddFavoritesVisibility::NotifyVisibilityChange()

    {

    iImpl->NotifyVisibilityChange(iTcCount, iAllContactsCount);                     

    }

void CPbk2AddFavoritesVisibility::UpdateContactCount(

        MVPbkContactViewBase& aView ) 

    {

    TInt count = KErrNotFound;

    TRAP_IGNORE( count = aView.ContactCountL());

    SetContactCount( aView, count );

    }

inline void CPbk2AddFavoritesVisibility::SetContactCount(

        MVPbkContactViewBase& aView,

        TInt aCount ) 

    {

    if( &aView == iTopContactsView )

        {

        iTcCount = aCount;

        }

    else if( &aView == iAllContactsView )

        {

        iAllContactsCount = aCount;

        }       

    else

        {

        __ASSERT_DEBUG(EFalse, Panic(EPanicUnknownView));

        }

    }   

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

// CPbk2AddFavoritesVisibility::ContactViewReady

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

//

void CPbk2AddFavoritesVisibility::ContactViewReady(

        MVPbkContactViewBase& aView)

    {   

    UpdateContactCount( aView );

    NotifyVisibilityChange();

    }

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

// CPbk2AddFavoritesVisibility::ContactViewUnavailable

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

//

void CPbk2AddFavoritesVisibility::ContactViewUnavailable(

        MVPbkContactViewBase& aView )

    {

    SetContactCount( aView, KErrNotFound );

    NotifyVisibilityChange();            

    }

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

// CPbk2AddFavoritesVisibility::ContactAddedToView

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

//

void CPbk2AddFavoritesVisibility::ContactAddedToView(

        MVPbkContactViewBase& aView,

        TInt /*aIndex*/,

        const MVPbkContactLink& /*aContactLink*/ )

    {          

    UpdateContactCount( aView );

    NotifyVisibilityChange();            

    }

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

// CPbk2AddFavoritesVisibility::ContactRemovedFromView

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

//

void CPbk2AddFavoritesVisibility::ContactRemovedFromView(

        MVPbkContactViewBase& aView,

        TInt /*aIndex*/,

        const MVPbkContactLink& /*aContactLink*/ )

    {

    UpdateContactCount( aView );

    NotifyVisibilityChange();            

    }

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

// CPbk2AddFavoritesVisibility::ContactViewError

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

//

void CPbk2AddFavoritesVisibility::ContactViewError(

        MVPbkContactViewBase& aView,

        TInt /*aError*/,

        TBool /*aErrorNotified*/ )

    {

    __ASSERT_DEBUG(EFalse, Panic(EPanicContactViewError));

    SetContactCount( aView, KErrNotFound );

    NotifyVisibilityChange();            

    }    

void CPbk2AddFavoritesVisibility::ConfigurationChanged()

    {

    Reset();

    }

void CPbk2AddFavoritesVisibility::ConfigurationChangedComplete()

    {

    TRAP_IGNORE( HandleConfigurationChangedL() );    

    // inform the client in case of error or not    

    NotifyVisibilityChange(); 

    }

void CPbk2AddFavoritesVisibility::HandleConfigurationChangedL()

    {

    Reset();

    StartL();

    }

void CPbk2AddFavoritesVisibility::Reset()

    {

    iTcCount = KErrNotFound;     

    iAllContactsCount = KErrNotFound;                 

    if(iTopContactsView)

        {

        iTopContactsView->RemoveObserver(*this);

        iTopContactsView = NULL;

        }

    if(iAllContactsView)

        {

        iAllContactsView->RemoveObserver(*this);

        iAllContactsView = NULL;

        }

    }    

void CPbk2AddFavoritesVisibility::SetVisibilityObserver(MPbk2CmdItemVisibilityObserver* aObserver)

    {

    iImpl->SetVisibilityObserver(aObserver);

    }

void CPbk2AddFavoritesVisibility::SetVisibility(TBool aVisibility)

    {

    iImpl->SetVisibility( aVisibility );

    NotifyVisibilityChange();    

    }

TBool CPbk2AddFavoritesVisibility::Visibility()

    {

    return iImpl->Visibility();

    }

// end of file