const QMetaObject *QDeclarativePropertyPrivate::rawMetaObjectForType(QDeclarativeEnginePrivate *engine, int userType)
{
if (engine) {
return engine->rawMetaObjectForType(userType);
} else {
QDeclarativeType *type = QDeclarativeMetaType::qmlType(userType);
return type?type->baseMetaObject():0;
}
}
bool QDeclarativePropertyPrivate::write(QObject *object, const QDeclarativePropertyCache::Data &property,
const QVariant &value, QDeclarativeContextData *context,
WriteFlags flags)
{
int coreIdx = property.coreIndex;
int status = -1; //for dbus
if (property.flags & QDeclarativePropertyCache::Data::IsEnumType) {
QMetaProperty prop = object->metaObject()->property(property.coreIndex);
QVariant v = value;
// Enum values come through the script engine as doubles
if (value.userType() == QVariant::Double) {
double integral;
double fractional = modf(value.toDouble(), &integral);
if (qFuzzyIsNull(fractional))
v.convert(QVariant::Int);
}
return writeEnumProperty(prop, coreIdx, object, v, flags);
}
int propertyType = property.propType;
int variantType = value.userType();
QDeclarativeEnginePrivate *enginePriv = QDeclarativeEnginePrivate::get(context);
if (propertyType == QVariant::Url) {
QUrl u;
bool found = false;
if (variantType == QVariant::Url) {
u = value.toUrl();
found = true;
} else if (variantType == QVariant::ByteArray) {
u = QUrl(QString::fromUtf8(value.toByteArray()));
found = true;
} else if (variantType == QVariant::String) {
u = QUrl(value.toString());
found = true;
}
if (!found)
return false;
if (context && u.isRelative() && !u.isEmpty())
u = context->resolvedUrl(u);
int status = -1;
void *argv[] = { &u, 0, &status, &flags };
QMetaObject::metacall(object, QMetaObject::WriteProperty, coreIdx, argv);
} else if (variantType == propertyType) {
void *a[] = { (void *)value.constData(), 0, &status, &flags };
QMetaObject::metacall(object, QMetaObject::WriteProperty, coreIdx, a);
} else if (qMetaTypeId<QVariant>() == propertyType) {
void *a[] = { (void *)&value, 0, &status, &flags };
QMetaObject::metacall(object, QMetaObject::WriteProperty, coreIdx, a);
} else if (property.flags & QDeclarativePropertyCache::Data::IsQObjectDerived) {
const QMetaObject *valMo = rawMetaObjectForType(enginePriv, value.userType());
if (!valMo)
return false;
QObject *o = *(QObject **)value.constData();
const QMetaObject *propMo = rawMetaObjectForType(enginePriv, propertyType);
if (o) valMo = o->metaObject();
if (canConvert(valMo, propMo)) {
void *args[] = { &o, 0, &status, &flags };
QMetaObject::metacall(object, QMetaObject::WriteProperty, coreIdx,
args);
} else if (!o && canConvert(propMo, valMo)) {
// In the case of a null QObject, we assign the null if there is
// any change that the null variant type could be up or down cast to
// the property type.
void *args[] = { &o, 0, &status, &flags };
QMetaObject::metacall(object, QMetaObject::WriteProperty, coreIdx,
args);
} else {
return false;
}
} else if (property.flags & QDeclarativePropertyCache::Data::IsQList) {
const QMetaObject *listType = 0;
if (enginePriv) {
listType = enginePriv->rawMetaObjectForType(enginePriv->listType(property.propType));
} else {
QDeclarativeType *type = QDeclarativeMetaType::qmlType(QDeclarativeMetaType::listType(property.propType));
if (!type) return false;
listType = type->baseMetaObject();
}
if (!listType) return false;
QDeclarativeListProperty<void> prop;
void *args[] = { &prop, 0 };
QMetaObject::metacall(object, QMetaObject::ReadProperty, coreIdx, args);
if (!prop.clear) return false;
prop.clear(&prop);
if (value.userType() == qMetaTypeId<QList<QObject *> >()) {
const QList<QObject *> &list = qvariant_cast<QList<QObject *> >(value);
for (int ii = 0; ii < list.count(); ++ii) {
QObject *o = list.at(ii);
if (o && !canConvert(o->metaObject(), listType))
o = 0;
prop.append(&prop, (void *)o);
}
} else {
QObject *o = enginePriv?enginePriv->toQObject(value):QDeclarativeMetaType::toQObject(value);
if (o && !canConvert(o->metaObject(), listType))
o = 0;
prop.append(&prop, (void *)o);
}
} else {
Q_ASSERT(variantType != propertyType);
QVariant v = value;
if (v.convert((QVariant::Type)propertyType)) {
void *a[] = { (void *)v.constData(), 0, &status, &flags};
QMetaObject::metacall(object, QMetaObject::WriteProperty, coreIdx, a);
} else if ((uint)propertyType >= QVariant::UserType && variantType == QVariant::String) {
QDeclarativeMetaType::StringConverter con = QDeclarativeMetaType::customStringConverter(propertyType);
if (!con)
return false;
QVariant v = con(value.toString());
if (v.userType() == propertyType) {
void *a[] = { (void *)v.constData(), 0, &status, &flags};
QMetaObject::metacall(object, QMetaObject::WriteProperty, coreIdx, a);
}
} else if (variantType == QVariant::String) {
bool ok = false;
QVariant v = QDeclarativeStringConverters::variantFromString(value.toString(), propertyType, &ok);
if (!ok)
return false;
void *a[] = { (void *)v.constData(), 0, &status, &flags};
QMetaObject::metacall(object, QMetaObject::WriteProperty, coreIdx, a);
} else {
return false;
}
}
return true;
}
