/*

* 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:  Phonebook 2 Group UI Extension delete group command.

*

*/

// INCLUDE FILES

#include "CPguDeleteGroupCmd.h"

// Phonebook 2

#include <MPbk2ProcessDecorator.h>

#include <Pbk2ProcessDecoratorFactory.h>

#include <MPbk2CommandObserver.h>

#include <Pbk2GroupUIRes.rsg>

#include <Pbk2Commands.rsg>

#include <Pbk2UIControls.rsg>

#include <MPbk2ContactUiControl.h>

#include <MPbk2ContactNameFormatter.h>

#include <CPbk2GeneralConfirmationQuery.h>

#include <CPbk2SortOrderManager.h>

#include <MPbk2ApplicationServices.h>

#include <MPbk2AppUi.h>

// Virtual Phonebook

#include <CVPbkContactManager.h>

#include <MVPbkContactLink.h>

#include <MVPbkStoreContact.h>

#include <MVPbkContactOperationBase.h>

#include <MVPbkContactGroup.h>

// System includes

#include <AknQueryDialog.h>

#include <StringLoader.h>

// Debugging headers

#include <Pbk2Debug.h>

/// Unnamed namespace for local definitions

namespace {

const TInt KFirstContact = 0;

const TInt KOneContact = 1;

#ifdef _DEBUG

enum TPanicCode

    {

    EPanicPreCond_ResetWhenDestroyed = 1,

    ERunL_InvalidState,

    VPbkSingleContactOperationComplete_Logic

    };

void Panic(TPanicCode aReason)

    {

    _LIT(KPanicText, "CPguDeleteGroupCmd");

    User::Panic(KPanicText,aReason);

    }

#endif // _DEBUG

} /// namespace

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

// CPguDeleteGroupCmd::CPguDeleteGroupCmd

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

//

inline CPguDeleteGroupCmd::CPguDeleteGroupCmd(

        MPbk2ContactUiControl& aUiControl ) :

    CActive( EPriorityIdle ),

    iUiControl( &aUiControl )

    {

    PBK2_DEBUG_PRINT(PBK2_DEBUG_STRING

        ("CPguDeleteGroupCmd::CPguDeleteGroupCmd(0x%x)"), this);

    CActiveScheduler::Add( this );

    }

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

// CPguDeleteGroupCmd::~CPguDeleteGroupCmd

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

//

CPguDeleteGroupCmd::~CPguDeleteGroupCmd()

    {

    PBK2_DEBUG_PRINT(PBK2_DEBUG_STRING

        ("CPguDeleteGroupCmd::~CPguDeleteGroupCmd(0x%x)"), this);

    Cancel();

    if( iUiControl )

        {

        iUiControl->RegisterCommand( NULL );

        }

    delete iDecorator;

    delete iContactLinkArray;

    delete iRetrieveOperation;

    delete iDeleteOperation;

    delete iContactGroup;

    }

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

// CPguDeleteGroupCmd::NewL

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

//

CPguDeleteGroupCmd* CPguDeleteGroupCmd::NewL(

        MPbk2ContactUiControl& aUiControl )

    {

    CPguDeleteGroupCmd* self = new (ELeave) CPguDeleteGroupCmd( aUiControl );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// CPguDeleteGroupCmd::ConstructL

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

//

inline void CPguDeleteGroupCmd::ConstructL()

    {

    iContactLinkArray = iUiControl->SelectedContactsOrFocusedContactL();

    TBool visibilityDelay = EFalse;    

    if ( iContactLinkArray && iContactLinkArray->Count() == KOneContact )

        {

        // When deleting only one contact, the progress dialog

        // is not (immediately) wanted

        visibilityDelay = ETrue;

        }

    iDecorator = Pbk2ProcessDecoratorFactory::CreateProgressDialogDecoratorL(

        R_QTN_PHOB_NOTE_CLEARING_PB, visibilityDelay );

    iDecorator->SetObserver( *this );

    iUiControl->RegisterCommand( this );

    }

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

// CPguDeleteGroupCmd::ExecuteLD

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

//

void CPguDeleteGroupCmd::ExecuteLD()

    {

    PBK2_DEBUG_PRINT(PBK2_DEBUG_STRING

        ("CPguDeleteGroupCmd::ExecuteLD(0x%x)"), this);

    CleanupStack::PushL( this );

    if ( iContactLinkArray )

        {

        TInt count = iContactLinkArray->Count();

        if ( count > KOneContact )

            {

            // Move straight to confirm phase

            iState = EConfirming;

            IssueRequest();

            }

        else if ( count == KOneContact )

            {

            // If the array contains only one contact, we have to retrieve it

            // to get its name for the confirmation query

            iState = ERetrieving;

            IssueRequest();

            }

        }

    CleanupStack::Pop( this );

    }

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

// CPguDeleteGroupCmd::AddObserver

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

//

void CPguDeleteGroupCmd::AddObserver( MPbk2CommandObserver& aObserver )

    {

    iCommandObserver = &aObserver;

    }

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

// CPguDeleteGroupCmd::ResetUiControl

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

//

void CPguDeleteGroupCmd::ResetUiControl(

        MPbk2ContactUiControl& aUiControl)

    {

    if (iUiControl == &aUiControl)

        {

        iUiControl = NULL;

        }

    }

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

// CPguDeleteGroupCmd::DoCancel

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

//

void CPguDeleteGroupCmd::DoCancel()

    {

    // Do nothing

    }

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

// CPguDeleteGroupCmd::RunL

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

//

void CPguDeleteGroupCmd::RunL()

    {

    PBK2_DEBUG_PRINT(PBK2_DEBUG_STRING

        ("CPguDeleteGroupCmd::RunL() start"), this);

   switch ( iState )

        {

        case ERetrieving:

            {

            const MVPbkContactLink& link =

                iContactLinkArray->At( KFirstContact );

            RetrieveContactL( link );

            break;

            }

        case EConfirming:

            {

            ConfirmDeletionL();

            break;

            }

        case EStarting:

            {

            DoDeleteContactsL();

            break;

            }

        case EDeleting:

            {

            // Do nothing

            break;

            }

        case EStopping:

            {

            // decorator calls ProcessDismissed

            iDecorator->ProcessStopped();

            break;

            }

        case ECanceling:

            {

            ProcessDismissed( KErrCancel );

            break;

            }

        default:

            {

            __ASSERT_DEBUG( EFalse, Panic(ERunL_InvalidState) );

            break;

            }

        }

    PBK2_DEBUG_PRINT

        (PBK2_DEBUG_STRING("CPguDeleteGroupCmd::RunL end"));

    }

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

// CPguDeleteGroupCmd::RunError

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

//

TInt CPguDeleteGroupCmd::RunError( TInt aError )

    {

    return FilterErrors( aError );

    }

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

// CPguDeleteGroupCmd::VPbkSingleContactOperationComplete

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

//

void CPguDeleteGroupCmd::VPbkSingleContactOperationComplete(

        MVPbkContactOperationBase& aOperation,

        MVPbkStoreContact* aContact )

    {

    if ( &aOperation == iRetrieveOperation )

        {

        delete iRetrieveOperation;

        iRetrieveOperation = NULL;

        iContactGroup = aContact->Group();

        __ASSERT_DEBUG( iContactGroup,

            Panic(VPbkSingleContactOperationComplete_Logic) );

        // We now have a group and we can issue a confirmation

        iState = EConfirming;

        IssueRequest();

        }

    }

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

// CPguDeleteGroupCmd::VPbkSingleContactOperationFailed

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

//

void CPguDeleteGroupCmd::VPbkSingleContactOperationFailed

        ( MVPbkContactOperationBase& aOperation, TInt /*aError*/ )

    {

    if ( &aOperation == iRetrieveOperation )

        {

        delete iRetrieveOperation;

        iRetrieveOperation = NULL;

        // We cannot get the contact, so we have to

        // fail. We cannot continue, since this operation

        // was executed only in case of one contact.

        iDecorator->ProcessStopped();

        }

    }

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

// CPguDeleteGroupCmd::StepComplete

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

//

void CPguDeleteGroupCmd::StepComplete

        ( MVPbkContactOperationBase& aOperation, TInt aStepSize )

    {

    if ( &aOperation == iDeleteOperation )

        {

        // Indicate process advancement to the decorator

        iDecorator->ProcessAdvance( aStepSize );

        }

    }

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

// CPguDeleteGroupCmd::StepFailed

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

//

TBool CPguDeleteGroupCmd::StepFailed(

        MVPbkContactOperationBase& aOperation,

        TInt /*aStepSize*/, TInt aError )

    {

    TBool result = ETrue;

    if ( &aOperation == iDeleteOperation )

        {

        // Check whether the error is a serious one

        TInt err = FilterErrors( aError );

        if ( err != KErrNone )

            {

            Cancel();

            result = EFalse;

            }

        }

    return result;

    }

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

// CPguDeleteGroupCmd::OperationComplete

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

//

void CPguDeleteGroupCmd::OperationComplete(

        MVPbkContactOperationBase& aOperation )

    {

    if ( &aOperation == iDeleteOperation )

        {

        delete iDeleteOperation;

        iDeleteOperation = NULL;

        IssueStopRequest( EStopping );

        }

    }

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

// CPguDeleteGroupCmd::ProcessDismissed

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

//

void CPguDeleteGroupCmd::ProcessDismissed( TInt aCancelCode )

    {

    PBK2_DEBUG_PRINT(PBK2_DEBUG_STRING

        ("CPguDeleteGroupCmd::ProcessDismissed()"));

    if ( aCancelCode != KErrCancel && iUiControl)

        {

        // Don't remove list markings if user canceled

        iUiControl->SetBlank( EFalse );

        iUiControl->UpdateAfterCommandExecution();

        }

    // Notify command owner that the command has finished

    iCommandObserver->CommandFinished( *this );

    }

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

// CPguDeleteGroupCmd::RetrieveContactL

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

//

void CPguDeleteGroupCmd::RetrieveContactL

        (const MVPbkContactLink& aContactLink )

    {

    // Retrieve the actual store contact from the given link

    iRetrieveOperation = Phonebook2::Pbk2AppUi()->ApplicationServices().

        ContactManager().RetrieveContactL( aContactLink, *this );

    }

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

// CPguDeleteGroupCmd::FilterErrors

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

//

inline TInt CPguDeleteGroupCmd::FilterErrors( TInt aErrorCode )

    {

    PBK2_DEBUG_PRINT(PBK2_DEBUG_STRING

        ("CPguDeleteGroupCmd::FilterErrors(%d) start"), aErrorCode);

    TInt result = aErrorCode;

    switch ( aErrorCode )

        {

        case KErrNotFound:  // FALLTHROUGH

        case KErrInUse:     // FALLTHROUGH

            {

            // Ignore these errors

            // KErrNotFound means that somebody got the contact first

            // KErrInUse means that the contact is open

            result = KErrNone;

            break;

            }

        default:  // Something more serious happened -> give up

            {

            Cancel();

            // Decorator calls processdismissed

            iDecorator->ProcessStopped();

            break;

            }

        }

    PBK2_DEBUG_PRINT(PBK2_DEBUG_STRING

        ("CPguDeleteGroupCmd::FilterErrors(%d) end"), result);

    return result;

    }

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

// CPguDeleteGroupCmd::IssueRequest

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

//

void CPguDeleteGroupCmd::IssueRequest()

    {

    if ( !IsActive() )

        {

        TRequestStatus* status = &iStatus;

        User::RequestComplete( status, KErrNone );

        SetActive();        

        }

    }

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

// CPguDeleteGroupCmd::IssueStopRequest

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

//

void CPguDeleteGroupCmd::IssueStopRequest( TProcessState aState )

    {

    iState = aState;

    if ( !IsActive() )

        {

        IssueRequest();

        }

    }

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

// CPguDeleteGroupCmd::ConfirmDeletionL

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

//

void CPguDeleteGroupCmd::ConfirmDeletionL()

    {

    TInt queryResult = 0;

    MVPbkContactLinkArray* items = iContactGroup->ItemsContainedLC();

    if ( queryResult )

        {

        // Continue with starting the deletion

        iState = EStarting;

        IssueRequest();

        }

    else

        {

        IssueStopRequest( ECanceling );

        }

    CleanupStack::PopAndDestroy(); // items

    }

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

// CPguDeleteGroupCmd::DoDeleteContactsL

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

//

void CPguDeleteGroupCmd::DoDeleteContactsL()

    {

    iDeleteOperation = Phonebook2::Pbk2AppUi()->ApplicationServices().

        ContactManager().DeleteContactsL( *iContactLinkArray, *this );

    iDecorator->ProcessStartedL( iContactLinkArray->Count() );

    if (iUiControl)

        {

        // Blank UI control to avoid flicker

        iUiControl->SetBlank( ETrue );

        }

    iState = EDeleting;

    IssueRequest();

    }

//  End of File