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#include "cnttransformavatar.h"
#include "cntmodelextuids.h"

QList<CContactItemField *> CntTransformAvatar::transformDetailL(const QContactDetail &detail)
{
    if(detail.definitionName() != QContactAvatar::DefinitionName)
        User::Leave(KErrArgument);

    QList<CContactItemField *> fieldList;

    //cast to avatar
    const QContactAvatar &avatar(static_cast<const QContactAvatar&>(detail));

    //create new field
    QString urlString = avatar.imageUrl().toString();
    TPtrC fieldText(reinterpret_cast<const TUint16*>(urlString.utf16()));

    //copy filename and replace slash with a backslash
    TFileName filename;
    for(TInt i(0); i < fieldText.Length(); ++i) {
        if(i >= filename.MaxLength())
            User::Leave(KErrTooBig);
        if(fieldText[i] == '/') {
            filename.Append('\\');
        } else {
            filename.Append(fieldText[i]);
        }
    }

    if(filename.Length()) {
        TUid uid(KUidContactFieldCodImage);

        CContactItemField* newField = CContactItemField::NewLC(KStorageTypeText, uid);

        newField->SetMapping(KUidContactFieldVCardMapUnknown);
        newField->TextStorage()->SetTextL(filename);

        fieldList.append(newField);
        CleanupStack::Pop(newField);
    }

    return fieldList;
}

QContactDetail *CntTransformAvatar::transformItemField(const CContactItemField& field, const QContact &contact)
{
    Q_UNUSED(contact);
    QContactAvatar *avatar = new QContactAvatar();

    if (field.ContentType().ContainsFieldType(KUidContactFieldCodImage)) {
        CContactTextField* storage = field.TextStorage();
        QString avatarString = QString::fromUtf16(storage->Text().Ptr(), storage->Text().Length());
        avatar->setImageUrl(QUrl(avatarString));
    }

    return avatar;
}

bool CntTransformAvatar::supportsDetail(QString detailName) const
{
    bool ret = false;
    if (detailName == QContactAvatar::DefinitionName) {
        ret = true;
    }
    return ret;
}

QList<TUid> CntTransformAvatar::supportedFields() const
{
    return QList<TUid>()
        << KUidContactFieldCodImage;
}

QList<TUid> CntTransformAvatar::supportedSortingFieldTypes(QString /*detailFieldName*/) const
{
    // Sorting not supported
    return QList<TUid>();
}


/*!
 * Checks whether the subtype is supported
 *
 * \a subType The subtype to be checked
 * \return True if this subtype is supported
 */
bool CntTransformAvatar::supportsSubType(const QString& /*subType*/) const
{
    return false;
}

/*!
 * Returns the filed id corresponding to a field
 *
 * \a fieldName The name of the supported field
 * \return fieldId for the fieldName, 0  if not supported
 */
quint32 CntTransformAvatar::getIdForField(const QString& fieldName) const
{
    if (QContactAvatar::FieldImageUrl  == fieldName)
        return 0;
    else
        return 0;
}

/*!
 * Modifies the detail definitions. The default detail definitions are
 * queried from QContactManagerEngine::schemaDefinitions and then modified
 * with this function in the transform leaf classes.
 *
 * \a definitions The detail definitions to modify.
 * \a contactType The contact type the definitions apply for.
 */
void CntTransformAvatar::detailDefinitions(QMap<QString, QContactDetailDefinition> &definitions, const QString& contactType) const
{
    Q_UNUSED(contactType);

    if(definitions.contains(QContactAvatar::DefinitionName)) {
        QContactDetailDefinition d = definitions.value(QContactAvatar::DefinitionName);
        QMap<QString, QContactDetailFieldDefinition> fields = d.fields();

        // We only support imageUrl
        fields.remove(QContactAvatar::FieldVideoUrl);
        // Context not supported in symbian back-end, remove
        fields.remove(QContactAvatar::FieldContext);

        d.setFields(fields);
        d.setUnique(true);

        // Replace original definitions
        definitions.insert(d.name(), d);
    }
}
