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/*
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* Copyright (c) 2002-2007 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: An operation object to delete contacts from contacts database
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*
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*/
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#include "CDeleteContactsOperation.h"
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// VPbkCntModel
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#include "CContactLink.h"
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#include "CContactStore.h"
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#include "CVPbkDiskSpaceCheck.h"
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#include "CContact.h"
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// Virtual Phonebook engine
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#include <MVPbkBatchOperationObserver.h>
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#include <MVPbkContactStoreInfo.h>
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// Contact Model
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#include <cntdef.h>
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#include <cntdb.h>
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#include <cntitem.h>
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namespace VPbkCntModel {
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// Definition for delete array size
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const TInt KDeleteArraySize = 3;
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// Definition for FreeDiskSpaceRequest towards DOSSERVER
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const TInt KFreeSpaceRequiredInKB = 140 * 1024; // 140 kB
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// -----------------------------------------------------------------------------
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// CDeleteContactsOperation::CDeleteContactsOperation
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// -----------------------------------------------------------------------------
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//
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CDeleteContactsOperation::CDeleteContactsOperation(
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CContactStore& aContactStore,
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MVPbkBatchOperationObserver& aObserver,
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RSharedDataClient* aSharedDataClient,
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VPbkEngUtils::CVPbkDiskSpaceCheck& aDiskSpaceChecker ) :
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CActive( CActive::EPriorityIdle ),
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iContactStore( aContactStore ),
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iObserver( aObserver ),
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iState( EDelete ),
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iSharedDataClient( aSharedDataClient ),
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iDiskSpaceChecker( aDiskSpaceChecker )
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{
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CActiveScheduler::Add(this);
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}
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// -----------------------------------------------------------------------------
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// CDeleteContactsOperation::~CDeleteContactsOperation
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// -----------------------------------------------------------------------------
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//
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CDeleteContactsOperation::~CDeleteContactsOperation()
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{
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Cancel();
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delete iRemainingContactIds;
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delete iCurrentContactIds;
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}
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// -----------------------------------------------------------------------------
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// CDeleteContactsOperation::NewL
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// -----------------------------------------------------------------------------
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//
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CDeleteContactsOperation* CDeleteContactsOperation::NewL(
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CContactStore& aContactStore,
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const MVPbkContactLinkArray& aLinks,
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MVPbkBatchOperationObserver& aObserver,
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RSharedDataClient* aSharedDataClient,
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VPbkEngUtils::CVPbkDiskSpaceCheck& aDiskSpaceChecker )
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{
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CDeleteContactsOperation* self =
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new( ELeave ) CDeleteContactsOperation( aContactStore, aObserver,
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aSharedDataClient, aDiskSpaceChecker );
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CleanupStack::PushL( self );
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self->ConstructL( aLinks );
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CleanupStack::Pop( self );
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return self;
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}
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// -----------------------------------------------------------------------------
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// CDeleteContactsOperation::ConstructL
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// -----------------------------------------------------------------------------
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//
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inline void CDeleteContactsOperation::ConstructL
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(const MVPbkContactLinkArray& aLinks)
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{
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iRemainingContactIds = CContactIdArray::NewL();
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iCurrentContactIds = CContactIdArray::NewL();
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iGroupCount = iContactStore.StoreInfo().NumberOfGroupsL();
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const TInt count = aLinks.Count();
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for ( TInt i=0 ; i < count; ++i )
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{
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const CContactLink& link =
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static_cast<const CContactLink&>( aLinks.At( i ) );
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iRemainingContactIds->AddL( link.ContactId() );
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}
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PrepareNextDelete();
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}
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// -----------------------------------------------------------------------------
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// CDeleteContactsOperation::DoCancel
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// -----------------------------------------------------------------------------
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//
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void CDeleteContactsOperation::DoCancel()
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{
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// Do nothing
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}
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// -----------------------------------------------------------------------------
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// CDeleteContactsOperation::RunL
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// -----------------------------------------------------------------------------
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//
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void CDeleteContactsOperation::RunL()
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{
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switch ( iState )
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{
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case EDelete:
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{
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RunDeleteL();
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IssueRequest();
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break;
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}
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case EComplete:
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{
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iObserver.OperationComplete( *this );
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break;
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}
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}
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}
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// -----------------------------------------------------------------------------
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// CDeleteContactsOperation::RunError
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// -----------------------------------------------------------------------------
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//
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TInt CDeleteContactsOperation::RunError(TInt aError)
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{
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if ( iFreeDiskSpaceRequired )
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{
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// Notify shared data that we do not need free space anymore
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DoCancelFreeDiskSpaceRequest();
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iFreeDiskSpaceRequired = EFalse;
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}
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// if iCurrentContactIndex is valid, than it's delete error
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// otherwise, RunDeleteL leaved outside the delete loop
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TBool deleteError = iCurrentContactIndex >= 0 &&
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iCurrentContactIndex < iCurrentContactIds->Count();
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// if error outside the delete loop, than skip all current contacts,
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// otherwise, remove failed contact and try again
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TInt stepSize = iCurrentContactIds->Count();
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if ( deleteError )
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{
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stepSize = 1;
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}
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if ( iObserver.StepFailed( *this, stepSize, aError ) )
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{
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if ( iCurrentContactIds->Count() > 1 && deleteError )
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{
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//remove failed contact and try without it again
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iCurrentContactIds->Remove( iCurrentContactIndex );
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iState = EDelete;
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}
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else
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{
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//skip iCurrentContactIds, try remaining
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PrepareNextDelete();
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}
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IssueRequest();
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}
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return KErrNone;
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}
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// -----------------------------------------------------------------------------
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// CDeleteContactsOperation::StartL
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// -----------------------------------------------------------------------------
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//
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void CDeleteContactsOperation::StartL()
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{
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IssueRequest();
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}
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// -----------------------------------------------------------------------------
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// CDeleteContactsOperation::Cancel
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// -----------------------------------------------------------------------------
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//
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void CDeleteContactsOperation::Cancel()
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{
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CActive::Cancel();
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}
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// -----------------------------------------------------------------------------
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// CDeleteContactsOperation::IssueRequest
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// -----------------------------------------------------------------------------
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//
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void CDeleteContactsOperation::IssueRequest()
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{
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TRequestStatus* status = &iStatus;
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User::RequestComplete( status, KErrNone );
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SetActive();
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}
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// -----------------------------------------------------------------------------
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// CDeleteContactsOperation::UpdateTimeStampOfAllContactsInGroupL
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// -----------------------------------------------------------------------------
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//
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void CDeleteContactsOperation::UpdateTimeStampOfAllContactsInGroupL()
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{
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CContactItem* groupItem = iContactStore.NativeDatabase().
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ReadContactLC( ( *iCurrentContactIds )[iCurrentContactIndex] );
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CContact* group = CContact::NewL( iContactStore, groupItem );
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CleanupStack::Pop(groupItem);
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CleanupStack::PushL( group );
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group->UpdateTimeStampOfAllContactsInGroupL();
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CleanupStack::PopAndDestroy( group );
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}
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// -----------------------------------------------------------------------------
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// CDeleteContactsOperation::CurrentItemIsGroupL
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// -----------------------------------------------------------------------------
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//
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TBool CDeleteContactsOperation::CurrentItemIsGroupL()
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{
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TBool isGroup = EFalse;
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// If groups exists, we need to read a minimal contact to get it's type
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if (iGroupCount > 0)
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{
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CContactItem* item = iContactStore.NativeDatabase().
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ReadMinimalContactLC( ( *iCurrentContactIds )[iCurrentContactIndex] );
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if (item->Type() == KUidContactGroup)
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{
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isGroup = ETrue;
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}
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CleanupStack::PopAndDestroy(item);
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}
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return isGroup;
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}
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// -----------------------------------------------------------------------------
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// CDeleteContactsOperation::RunDeleteL
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// -----------------------------------------------------------------------------
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//
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inline void CDeleteContactsOperation::RunDeleteL()
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{
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StartTransactionLC();
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TInt stepSize = iCurrentContactIds->Count();
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for ( iCurrentContactIndex = 0;
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iCurrentContactIndex < stepSize;
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++iCurrentContactIndex )
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{
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DoRequestFreeDiskSpaceLC();
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// If contact item is a group, we need to update the timestamps
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// of the contacts in the group before deleting the group.
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// This is needed for sync services.
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if ( CurrentItemIsGroupL() )
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{
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UpdateTimeStampOfAllContactsInGroupL();
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}
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// Cannot use DeleteContactsL here, since it does not
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// send contact removed events
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iContactStore.NativeDatabase().
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DeleteContactL( ( *iCurrentContactIds )[iCurrentContactIndex] );
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CleanupStack::PopAndDestroy(); // RequestFreeDiskSpaceLC
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RunCompressL(EFalse);
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}
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// Commit database transaction
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CommitTransactionLP();
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iObserver.StepComplete( *this, stepSize );
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RunCompressL(ETrue);
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PrepareNextDelete();
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}
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void CDeleteContactsOperation::PrepareNextDelete()
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{
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iCurrentContactIds->Reset();
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for ( TInt i = Min(iRemainingContactIds->Count(), KDeleteArraySize) - 1;
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i >= 0;
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--i )
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{
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iCurrentContactIds->AddL( ( *iRemainingContactIds )[i] );
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iRemainingContactIds->Remove( i );
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}
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iState = EDelete;
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iCurrentContactIndex = -1; //make index invalid, it's checked in RunError
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//to detect StartTransactionLC leave
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if ( iCurrentContactIds->Count() == 0 )
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{
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// No more contacts to delete
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iState = EComplete;
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}
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}
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// -----------------------------------------------------------------------------
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// CDeleteContactsOperation::RunCompressL
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// -----------------------------------------------------------------------------
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//
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inline void CDeleteContactsOperation::RunCompressL(TBool aForce)
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{
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if ( aForce || iContactStore.NativeDatabase().CompressRequired() )
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{
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DoRequestFreeDiskSpaceLC();
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// Compress database
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iContactStore.NativeDatabase().CompactL();
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CleanupStack::PopAndDestroy(); // RequestFreeDiskSpaceLC
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}
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}
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// -----------------------------------------------------------------------------
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// CDeleteContactsOperation::StartTransactionLC
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// -----------------------------------------------------------------------------
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//
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inline void CDeleteContactsOperation::StartTransactionLC()
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{
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// If database transaction starting leaves -->
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// Reserved disk space if freed in CDeleteContactsOperation::RunError
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DoRequestFreeDiskSpace();
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iFreeDiskSpaceRequired = ETrue;
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iContactStore.NativeDatabase().DatabaseBeginLC( EFalse );
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DoCancelFreeDiskSpaceRequest();
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iFreeDiskSpaceRequired = EFalse;
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}
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// -----------------------------------------------------------------------------
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// CDeleteContactsOperation::CommitTransactionLC
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// -----------------------------------------------------------------------------
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//
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inline void CDeleteContactsOperation::CommitTransactionLP()
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{
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// If database commit leaves --> Reserved disk space if freeed in
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// CDeleteContactsOperation::RunError
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DoRequestFreeDiskSpace();
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iFreeDiskSpaceRequired = ETrue;
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iContactStore.NativeDatabase().DatabaseCommitLP( EFalse );
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DoCancelFreeDiskSpaceRequest();
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iFreeDiskSpaceRequired = EFalse;
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}
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// -----------------------------------------------------------------------------
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// CDeleteContactsOperation::DoRequestFreeDiskSpace
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// -----------------------------------------------------------------------------
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//
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void CDeleteContactsOperation::DoRequestFreeDiskSpace()
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{
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if ( iSharedDataClient )
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{
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iSharedDataClient->RequestFreeDiskSpace(KFreeSpaceRequiredInKB);
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}
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}
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// -----------------------------------------------------------------------------
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// CDeleteContactsOperation::DoRequestFreeDiskSpaceLC
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// -----------------------------------------------------------------------------
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//
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void CDeleteContactsOperation::DoRequestFreeDiskSpaceLC()
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{
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if ( iSharedDataClient )
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{
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iSharedDataClient->RequestFreeDiskSpaceLC(KFreeSpaceRequiredInKB);
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}
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else
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{
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// place token in cleanup stack
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TAny* const nop = NULL;
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CleanupStack::PushL(nop);
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}
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}
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// -----------------------------------------------------------------------------
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// CDeleteContactsOperation::CancelFreeDiskSpaceRequest
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// -----------------------------------------------------------------------------
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//
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void CDeleteContactsOperation::DoCancelFreeDiskSpaceRequest()
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{
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if ( iSharedDataClient )
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{
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iSharedDataClient->CancelFreeDiskSpaceRequest();
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}
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}
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} // namespace VPbkCntModel
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// End of File
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