diff -r 000000000000 -r e686773b3f54 phonebookengines/VirtualPhonebook/VPbkCntModel/src/CFindInTextDefOperation.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/phonebookengines/VirtualPhonebook/VPbkCntModel/src/CFindInTextDefOperation.cpp Tue Feb 02 10:12:17 2010 +0200 @@ -0,0 +1,252 @@ +/* +* Copyright (c) 2006-2007 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: A find operation that uses +* CContactDataBase::FindInTextDefAsyncL +* +*/ + + +#include "CFindInTextDefOperation.h" + +// VPbkCntModel internal +#include "CContactStore.h" +#include "CFieldFactory.h" +#include "CContactLink.h" + +// Virtual Phonebook +#include +#include +#include + +// Other system includes +#include + +namespace VPbkCntModel { + +// Set a limit to the contact id conversion. If for some reason +// the result is huge. +const TInt KMaxConversionInOneStep = 100; +const TInt KContinueIdle = 1; +const TInt KDontContinueIdle = 0; +const TInt KGranularity( 2 ); + +// ======== MEMBER FUNCTIONS ======== + +// --------------------------------------------------------------------------- +// CFindInTextDefOperation::CFindInTextDefOperation +// --------------------------------------------------------------------------- +// +CFindInTextDefOperation::CFindInTextDefOperation( CContactStore& aContactStore, + MVPbkContactFindFromStoresObserver& aObserver, + const TCallBack& aWordParserCallBack ) + : iStore( aContactStore ), + iObserver( aObserver ), + iWordParserCallBack( aWordParserCallBack ) + { + + } + +// --------------------------------------------------------------------------- +// CFindInTextDefOperation::ConstructL +// --------------------------------------------------------------------------- +// +void CFindInTextDefOperation::ConstructL( const MDesC16Array& aSearchStrings, + const MVPbkFieldTypeList& aFieldTypes ) + { + // Copy search strings + const TInt stringCount = aSearchStrings.MdcaCount(); + TInt granularity = stringCount; + if ( stringCount == 0 ) + { + // default granularity + granularity = KGranularity; + } + + iSearchStrings = new( ELeave ) CDesCArrayFlat( granularity ); + for ( TInt i = 0; i < stringCount; ++i ) + { + iSearchStrings->AppendL( aSearchStrings.MdcaPoint( i ) ); + } + + // Convert fieldtypes to contact model text definitions + iTextDefs = CContactTextDef::NewL(); + const TInt typeCount = aFieldTypes.FieldTypeCount(); + for ( TInt j = 0; j < typeCount; ++j ) + { + const MVPbkFieldType& fieldType = aFieldTypes.FieldTypeAt( j ); + const CContactItemField* field = + iStore.FieldFactory().FindField( fieldType ); + if ( field ) + { + iTextDefs->AppendL( + TContactTextDefItem( field->ContentType().FieldType(0) ) ); + } + } + + iIdle = CIdle::NewL( CActive::EPriorityStandard ); + iResults = CVPbkContactLinkArray::NewL(); + } + +// --------------------------------------------------------------------------- +// CFindInTextDefOperation::NewL +// --------------------------------------------------------------------------- +// +CFindInTextDefOperation* CFindInTextDefOperation::NewL( + CContactStore& aContactStore, + const MDesC16Array& aSearchStrings, + const MVPbkFieldTypeList& aFieldTypes, + MVPbkContactFindFromStoresObserver& aObserver, + const TCallBack& aWordParserCallBack ) + { + CFindInTextDefOperation* self = new( ELeave ) CFindInTextDefOperation( + aContactStore, aObserver, aWordParserCallBack ); + CleanupStack::PushL( self ); + self->ConstructL( aSearchStrings, aFieldTypes ); + CleanupStack::Pop( self ); + return self; + } + +// --------------------------------------------------------------------------- +// CFindInTextDefOperation::~CFindInTextDefOperation +// --------------------------------------------------------------------------- +// +CFindInTextDefOperation::~CFindInTextDefOperation() + { + Cancel(); + delete iAsyncFinder; + delete iIdle; + delete iResults; + delete iContactIds; + delete iSearchStrings; + delete iTextDefs; + } + +// --------------------------------------------------------------------------- +// From class MVPbkContactOperation. +// CFindInTextDefOperation::StartL +// --------------------------------------------------------------------------- +// +void CFindInTextDefOperation::StartL() + { + if ( iTextDefs->Count() == 0 || iSearchStrings->Count() == 0 ) + { + iIdle->Start( TCallBack( ConvertResults, this ) ); + } + else + { + iAsyncFinder = iStore.NativeDatabase().FindInTextDefAsyncL( + *iSearchStrings, iTextDefs, this, iWordParserCallBack ); + } + } + +// --------------------------------------------------------------------------- +// From class MVPbkContactOperation. +// CFindInTextDefOperation::Cancel +// --------------------------------------------------------------------------- +// +void CFindInTextDefOperation::Cancel() + { + if ( iAsyncFinder ) + { + iAsyncFinder->Cancel(); + delete iAsyncFinder; + iAsyncFinder = NULL; + } + + if ( iIdle ) + { + iIdle->Cancel(); + } + } + +// --------------------------------------------------------------------------- +// From class MIdleFindObserver. +// CFindInTextDefOperation::IdleFindCallback +// --------------------------------------------------------------------------- +// +void CFindInTextDefOperation::IdleFindCallback() + { + if ( iAsyncFinder->IsComplete() ) + { + iContactIds = iAsyncFinder->TakeContactIds(); + iIdle->Start( TCallBack( ConvertResults, this ) ); + } + } + +// --------------------------------------------------------------------------- +// CFindInTextDefOperation::ConvertResults +// --------------------------------------------------------------------------- +// +TInt CFindInTextDefOperation::ConvertResults( TAny* aThis ) + { + CFindInTextDefOperation* self = + static_cast( aThis ); + TInt continueIdle = KDontContinueIdle; + TRAPD( res, continueIdle = self->ConvertResultsL() ); + if ( res != KErrNone ) + { + self->HandleError( res ); + } + return continueIdle; + } + +// --------------------------------------------------------------------------- +// CFindInTextDefOperation::ConvertResultsL +// --------------------------------------------------------------------------- +// +TInt CFindInTextDefOperation::ConvertResultsL() + { + TInt convertedIds = 0; + const TInt firstContact = 0; + // Convert only reasonable amount of ids in one cycle + if ( iContactIds ) + { + while ( iContactIds->Count() > 0 && + convertedIds < KMaxConversionInOneStep ) + { + CContactLink* link = CContactLink::NewLC( iStore, + (*iContactIds)[firstContact] ); + iContactIds->Remove( firstContact ); + iResults->AppendL( link ); + CleanupStack::Pop(); // link + ++convertedIds; + } + } + + // iContactIds not necessary exists if find wasn't done in StartL + if ( !iContactIds || iContactIds->Count() == 0 ) + { + // Results are ready. + MVPbkContactLinkArray* results = iResults; + iResults = NULL; + iObserver.FindFromStoreSucceededL( iStore, results ); + iObserver.FindFromStoresOperationComplete(); + return KDontContinueIdle; + } + return KContinueIdle; + } + +// --------------------------------------------------------------------------- +// CFindInTextDefOperation::HandleError +// --------------------------------------------------------------------------- +// +void CFindInTextDefOperation::HandleError( TInt aError ) + { + if ( aError != KErrNone ) + { + iObserver.FindFromStoreFailed( iStore, aError ); + iObserver.FindFromStoresOperationComplete(); + } + } +} // namespace VPbkCntModel