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void CRCntUtil::GetAllCardsL(TDes8 &aBuffer, TBool aFetchAllFields, TDes8 &aTempBuffer) { iCardIdArray->Reset(); // Populate the card ID array from the view. // We could use the view directly but it might change between calls // from the client and, this way, we can use the same array for being // set up in other routines // Bear in mind that the view may not be ready, so check if(iViewObs->IsReady()) { TInt count = iView->CountL(); for(TInt i = 0 ; i < count ; ++i) { iCardIdArray->AddL(iView->AtL(i)); } } iArrayIndex = 0; GetMoreCardsL(aBuffer, aFetchAllFields, aTempBuffer); } void CRCntUtil::FindCardsL(TDes &aFindText, TBool aFetchAllFields, TDes8 &aBuffer, TDes8 &aTempBuffer) { if(iCardIdArray != NULL) { delete iCardIdArray; iCardIdArray = NULL; } iCardIdArray = iCdb->FindLC(aFindText, iSearchFieldDef); CleanupStack::Pop(iCardIdArray); // member variable iArrayIndex = 0; GetMoreCardsL(aBuffer, aFetchAllFields, aTempBuffer); if(iArrayIndex == iCardIdArray->Count()) {iCardIdArray->Reset();} } void CRCntUtil::GetCardSetL(TConnBuff &aBuffer) { iCardIdArray->Reset(); TInt cardId = CConnPack::ReadInt32L(aBuffer); while(cardId >= 0) { iCardIdArray->AddL(cardId); cardId = CConnPack::ReadInt32L(aBuffer); } iArrayIndex = 0; } void CRCntUtil::GetMoreCardsL(TDes8 &aBuffer, TBool aFetchAllFields, TDes8 &aTempBuffer)
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{ TInt cardCount = iCardIdArray->Count(); // Go through the set of cards until we finish or run out // of buffer space. We may come around again if we run out // of buffer space while(iArrayIndex < cardCount) { TContactItemId cItemId = (*iCardIdArray)[iArrayIndex]; aTempBuffer.Zero(); GetOneCardL(cItemId, aFetchAllFields, aTempBuffer); if( aTempBuffer.Length() > 0) { // If the message will fit then append it, otherwise break out // Need to leave room for a terminating null-id as well if(aTempBuffer.Length()+aBuffer.Length()+4 < aBuffer.MaxLength()) { CConnPack::WriteBufferL(aTempBuffer, aBuffer); ++iArrayIndex; } else { break; } } else { ++iArrayIndex; }//endif }//endwhile CConnPack::WriteInt32L(-1, aBuffer); }
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11.7.4 Accessing the System Template
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It is possible to use templates in a sophisticated way, with different templates for different purposes. However, most of the time this is unlikely to be necessary. Therefore, we will content ourselves with obtaining information about the system template. It is likely that most Contact cards will have been created based on the system template, so we can store its labels once and use them for all cards (thus, we can avoid retrieving the labels for each eld of each card).
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void CRCntUtil::GetTemplateInfoL( TDes8 &aBuffer) { CContactItemFieldSet &cardFields = iTemplate->CardFields(); TInt fieldCount = cardFields.Count(); for(TInt j = 0 ; j < fieldCount ; ++j) { CConnPack::WriteInt32L(cardFields[j].Id() , aBuffer); TInt fieldTypeCount = cardFields[j].ContentType().FieldTypeCount(); for(TInt fi = 0 ; fi < fieldTypeCount ; ++fi) { CConnPack::WriteInt32L(cardFields[j].ContentType().
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FieldType(fi).iUid , aBuffer); } CConnPack::WriteInt32L(-1, aBuffer); // Append the content type mapping CConnPack::WriteInt32L(cardFields[j].ContentType().Mapping().iUid, aBuffer); TPtrC label = cardFields[j].Label(); CConnPack::WriteUNCDataL(label , aBuffer); } CConnPack::WriteInt32L(-1, aBuffer); }
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The own card is a useful concept as a means of identifying a phone and for ease of transferring to another phone. The own card is just another Contact card and the methods to set and retrieve it are straightforward:
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void CRCntUtil::FetchOwnCardIdL(TDes8 &aBuffer) { TInt ownCardId = iCdb->OwnCardId(); CConnPack::WriteInt32L(ownCardId, aBuffer); } void CRCntUtil::SetOwnCardIdL(TDes8 &aBuffer) { TInt ownCardId = CConnPack::ReadInt32L(aBuffer); CContactItem *item = iCdb->ReadContactLC(ownCardId); iCdb->SetOwnCardL(*item); CleanupStack::PopAndDestroy(item); }
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11.7.6 Deleting, Adding and Editing Cards
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Deleting a Contact card is straightforward, given the card s identi er:
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void CRCntUtil::DeleteCardL(TInt aCardId) { iCdb->DeleteContactL(aCardId); }
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Creating a new Contact card or editing an existing one requires a means of setting or resetting the eld data; this means that the majority of the code is common but the edited card needs to have the changes committed:
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TInt CRCntUtil::AddNewContactL( TDes8 &aBuffer) { CContactCard *newCard = CContactCard::NewLC(iTemplate); DoEditsL( newCard, aBuffer);
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TContactItemId newId = iCdb->AddNewContactL(*newCard); CleanupStack::PopAndDestroy(newCard); return newId; } void CRCntUtil::EditCardL(TDes8 &aBuffer) { // Find the selected card TInt cardId = CConnPack::ReadInt32L(aBuffer); CContactItem* editCard = (CContactCard*)iCdb->OpenContactL(cardId); CleanupStack::PushL(editCard); DoEditsL( editCard, aBuffer); // Commit changes iCdb->CommitContactL(*editCard); CleanupStack::PopAndDestroy(editCard); }
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The actual setting or changing of the eld data involves reading a set of eld types and a mapping from the message to uniquely identify a eld and then setting or changing its text data. If we wanted to extend this to support other storage types then all we would need to do would be to extend this routine. Finding the correct eld to change is slightly complex. It is possible for more than one eld to share one or more eld types it is only the combination that is supposed to be unique. We can search in the set of elds for a eld that contains a single eld type, but it may not match the complete set of eld types, in which case we need to search for other matching elds.
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void CRCntUtil::DoEditsL(CContactItem* aCard, TDes8 &aBuffer) { CContactItemFieldSet &cardFields = aCard->CardFields(); TInt fieldsCount = cardFields.Count(); // For each set of field types set the text. // Each set of types is terminated by -1 and is followed by the // mapping value (or -1 if unset). If the first fields type value // is -1 then we have reached the end of the fields. TUid fieldType; fieldType.iUid = CConnPack::ReadInt32L(aBuffer); while(fieldType.iUid >= 0) { // Make a CContentType and set the field types and the mapping CContentType *editContent = CContentType::NewL(fieldType); CleanupStack::PushL(editContent); while(fieldType.iUid >= 0) { fieldType.iUid = CConnPack::ReadInt32L(aBuffer); if(fieldType.iUid >= 0) { editContent->AddFieldTypeL(fieldType); } }