/*

* Copyright (c) 2004 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:  Attribute asynhronous data set hook.

*

*/

// INCLUDE FILES

#include    "CPEngAttrModelAsyncDataSetHook.h"

#include    "CPEngPresenceAttrModel.h"

#include    "MPEngPresenceAttrModelTypeImp.h"

#include    "PresenceDebugPrint.h"

#include    <E32Base.h>

//LOCAL constants

namespace

    {

    _LIT( KPEngAsyncDataSetHookPanic, "AsyncDataSetHook" );

    enum TPEngAsyncDataSetHookPanicReasons

        {

        EHookNotReady

        };

    void PanicAsyncDataSetHook( TPEngAsyncDataSetHookPanicReasons aPanicReason )

        {

        User::Panic( KPEngAsyncDataSetHookPanic, aPanicReason );

        }

    }

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

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

// CPEngAttrModelAsyncDataSetHook::CPEngAttrModelAsyncDataSetHook

// C++ default constructor can NOT contain any code, that

// might leave.

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

//

CPEngAttrModelAsyncDataSetHook::CPEngAttrModelAsyncDataSetHook()

        : CActive( CActive::EPriorityStandard )

    {

    CActiveScheduler::Add( this );

    }

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

// Destructor

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

//

CPEngAttrModelAsyncDataSetHook::~CPEngAttrModelAsyncDataSetHook()

    {

    CActive::Cancel();

    }

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

// CPEngAttrModelAsyncDataSetHook::InitializeLC()

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

//

void CPEngAttrModelAsyncDataSetHook::InitializeLC( TRequestStatus& aRequestStatus,

                                                   CPEngPresenceAttrModel& aAttributeModel,

                                                   MPEngPresenceAttrModelTypeImp& aTypeImp )

    {

    __ASSERT_ALWAYS( !IsActive(), User::Leave( KErrInUse ) );

    CleanupStack::PushL( TCleanupItem( ResetTheHook, this ) );

    iStatusToComplete = &aRequestStatus;

    iHookOwner = &aAttributeModel;

    iHookedImp = &aTypeImp;

    }

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

// CPEngAttrModelAsyncDataSetHook::Status()

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

//

TRequestStatus& CPEngAttrModelAsyncDataSetHook::Status()

    {

    return iStatus;

    }

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

// CPEngAttrModelAsyncDataSetHook::Activate()

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

//

void CPEngAttrModelAsyncDataSetHook::Activate()

    {

    __ASSERT_ALWAYS( ( iStatusToComplete && iHookOwner && iHookedImp ),

                     PanicAsyncDataSetHook( EHookNotReady ) );

    if ( iStatus == KRequestPending )

        {

        PENG_DP_TXT( "CPEngAttrModelAsyncDataSetHook: Puting hook pending." );

        *iStatusToComplete = KRequestPending;

        SetActive();

        }

    else

        {

        PENG_DP_TXT( "CPEngAttrModelAsyncDataSetHook: Hook ended directly." );

        *iStatusToComplete = iStatus;

        Reset();

        }

    }

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

// CPEngAttrModelAsyncDataSetHook::RunL()

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

//

void CPEngAttrModelAsyncDataSetHook::RunL()

    {

    if ( iStatus.Int() == KErrNone )

        {

        //Data set done. Update the attribute state.

        iHookOwner->SetQualifier( ETrue );

        }

    //complete the hooked request with return status from real operation

    User::RequestComplete( iStatusToComplete, iStatus.Int() );

    Reset();

    }

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

// CPEngAttrModelAsyncDataSetHook::DoCancel()

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

//

void CPEngAttrModelAsyncDataSetHook::DoCancel()

    {

    iHookedImp->CancelSetDataAsync();

    //then complete the client request

    User::RequestComplete( iStatusToComplete, KErrCancel );

    Reset();

    }

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

// CPEngAttrModelAsyncDataSetHook::Reset()

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

//

void CPEngAttrModelAsyncDataSetHook::Reset()

    {

    //reset the state

    iHookOwner = NULL;

    iHookedImp = NULL;

    iStatusToComplete = NULL;

    }

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

// CPEngAttrModelAsyncDataSetHook::ResetTheHook()

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

//

void CPEngAttrModelAsyncDataSetHook::ResetTheHook( TAny* aHook )

    {

    CPEngAttrModelAsyncDataSetHook* self = static_cast< CPEngAttrModelAsyncDataSetHook* >( aHook );

    self->Reset();

    }

//  End of File