QVariant QDBusAbstractInterfacePrivate::property(const QMetaProperty &mp) const
{
if (!connection.isConnected()) // not connected
return QVariant();
// try to read this property
QDBusMessage msg = QDBusMessage::createMethodCall(service, path,
QLatin1String(DBUS_INTERFACE_PROPERTIES),
QLatin1String("Get"));
msg << interface << QString::fromUtf8(mp.name());
QDBusMessage reply = connection.call(msg, QDBus::Block);
if (reply.type() == QDBusMessage::ReplyMessage && reply.arguments().count() == 1 &&
reply.signature() == QLatin1String("v")) {
QVariant value = qvariant_cast<QDBusVariant>(reply.arguments().at(0)).variant();
// make sure the type is right
if (qstrcmp(mp.typeName(), value.typeName()) == 0) {
if (mp.type() == QVariant::LastType)
// QVariant is special in this context
return qvariant_cast<QDBusVariant>(reply.arguments().at(0)).variant();
return value;
}
}
// there was an error...
if (reply.type() == QDBusMessage::ErrorMessage)
lastError = reply;
else if (reply.signature() != QLatin1String("v")) {
QString errmsg = QLatin1String("Invalid signature `%1' in return from call to "
DBUS_INTERFACE_PROPERTIES);
lastError = QDBusError(QDBusError::InvalidSignature, errmsg.arg(reply.signature()));
} else {
QString errmsg = QLatin1String("Unexpected type `%1' when retrieving property "
"`%2 %3.%4'");
lastError = QDBusError(QDBusError::InvalidSignature,
errmsg.arg(QLatin1String(reply.arguments().at(0).typeName()),
QLatin1String(mp.typeName()),
interface, QString::fromUtf8(mp.name())));
}
return QVariant();
}
QDebug operator<<(QDebug dbg, const QDBusMessage &msg)
{
dbg.nospace() << "QDBusMessage(type=" << msg.type()
<< ", service=" << msg.service();
if (msg.type() == QDBusMessage::MethodCallMessage ||
msg.type() == QDBusMessage::SignalMessage)
dbg.nospace() << ", path=" << msg.path()
<< ", interface=" << msg.interface()
<< ", member=" << msg.member();
if (msg.type() == QDBusMessage::ErrorMessage)
dbg.nospace() << ", error name=" << msg.errorName()
<< ", error message=" << msg.errorMessage();
dbg.nospace() << ", signature=" << msg.signature()
<< ", contents=(";
debugVariantList(dbg, msg.arguments());
dbg.nospace() << ") )";
return dbg.space();
}
static QScriptValue messageToScriptValue(QScriptEngine *engine, const QDBusMessage &message)
{
QScriptValue v = engine->newVariant(QVariant::fromValue(message));
v.setProperty(QLatin1String("service"), QScriptValue(engine, message.service()), QScriptValue::ReadOnly);
v.setProperty(QLatin1String("path"), QScriptValue(engine, message.path()), QScriptValue::ReadOnly);
v.setProperty(QLatin1String("interface"), QScriptValue(engine, message.interface()), QScriptValue::ReadOnly);
v.setProperty(QLatin1String("member"), QScriptValue(engine, message.member()), QScriptValue::ReadOnly);
v.setProperty(QLatin1String("type"), QScriptValue(engine, message.type()), QScriptValue::ReadOnly);
v.setProperty(QLatin1String("signature"), QScriptValue(engine, message.signature()), QScriptValue::ReadOnly);
v.setProperty(QLatin1String("isReplyRequired"), QScriptValue(engine, message.isReplyRequired()), QScriptValue::ReadOnly);
v.setProperty(QLatin1String("delayedReply"), QScriptValue(engine, message.isDelayedReply()));
QScriptValue argValue = engine->newArray();
const QList<QVariant> args = message.arguments();
for (int i = 0; i < args.count(); ++i)
argValue.setProperty(QScriptValue(engine, i).toString(),
engine->newVariant(args.at(i)));
v.setProperty(QLatin1String("arguments"), argValue);
return v;
}
int ThermaldInterface::getTripInformation(uint zone_index,
uint trip_index, tripInformationType &info)
{
QDBusMessage result;
result = iface->call("GetZoneTripAtIndex", zone_index, trip_index);
if (result.type() == QDBusMessage::ReplyMessage) {
info.temp = result.arguments().at(0).toInt() / 1000;
info.trip_type = result.arguments().at(1).toInt();
info.sensor_id = result.arguments().at(2).toInt();
info.cdev_size = result.arguments().at(3).toInt();
// info.cdev_ids = result.arguments().at(4).toList();
return 0;
} else if (result.signature().isEmpty()){
// If we get and empty response, then ignore it, but return error code
return -1;
} else {
qCritical() << "error from" << iface->interface() << result.errorMessage()
<< zone_index << trip_index;
return -1;
}
}
void QDBusAbstractInterfacePrivate::property(const QMetaProperty &mp, QVariant &where) const
{
if (!isValid || !canMakeCalls()) { // can't make calls
where.clear();
return;
}
// is this metatype registered?
const char *expectedSignature = "";
if (mp.type() != 0xff) {
expectedSignature = QDBusMetaType::typeToSignature(where.userType());
if (expectedSignature == 0) {
qWarning("QDBusAbstractInterface: type %s must be registered with QtDBus before it can be "
"used to read property %s.%s",
mp.typeName(), qPrintable(interface), mp.name());
lastError = QDBusError(QDBusError::Failed,
QString::fromLatin1("Unregistered type %1 cannot be handled")
.arg(QLatin1String(mp.typeName())));
where.clear();
return;
}
}
// try to read this property
QDBusMessage msg = QDBusMessage::createMethodCall(service, path,
QLatin1String(DBUS_INTERFACE_PROPERTIES),
QLatin1String("Get"));
QDBusMessagePrivate::setParametersValidated(msg, true);
msg << interface << QString::fromUtf8(mp.name());
QDBusMessage reply = connection.call(msg, QDBus::Block);
if (reply.type() != QDBusMessage::ReplyMessage) {
lastError = reply;
where.clear();
return;
}
if (reply.signature() != QLatin1String("v")) {
QString errmsg = QLatin1String("Invalid signature `%1' in return from call to "
DBUS_INTERFACE_PROPERTIES);
lastError = QDBusError(QDBusError::InvalidSignature, errmsg.arg(reply.signature()));
where.clear();
return;
}
QByteArray foundSignature;
const char *foundType = 0;
QVariant value = qvariant_cast<QDBusVariant>(reply.arguments().at(0)).variant();
if (value.userType() == where.userType() || mp.type() == 0xff
|| (expectedSignature[0] == 'v' && expectedSignature[1] == '\0')) {
// simple match
where = value;
return;
}
if (value.userType() == qMetaTypeId<QDBusArgument>()) {
QDBusArgument arg = qvariant_cast<QDBusArgument>(value);
foundType = "user type";
foundSignature = arg.currentSignature().toLatin1();
if (foundSignature == expectedSignature) {
// signatures match, we can demarshall
QDBusMetaType::demarshall(arg, where.userType(), where.data());
return;
}
} else {
foundType = value.typeName();
foundSignature = QDBusMetaType::typeToSignature(value.userType());
}
// there was an error...
QString errmsg = QLatin1String("Unexpected `%1' (%2) when retrieving property `%3.%4' "
"(expected type `%5' (%6))");
lastError = QDBusError(QDBusError::InvalidSignature,
errmsg.arg(QString::fromLatin1(foundType),
QString::fromLatin1(foundSignature),
interface,
QString::fromUtf8(mp.name()),
QString::fromLatin1(mp.typeName()),
QString::fromLatin1(expectedSignature)));
where.clear();
return;
}
QVariant QDBusAbstractInterfacePrivate::property(const QMetaProperty &mp) const
{
if (!connection.isConnected()) // not connected
return QVariant();
// is this metatype registered?
int mid;
const char *expectedSignature;
if (mp.type() == QVariant::LastType) {
// We're asking to read a QVariant
mid = qMetaTypeId<QDBusVariant>();
expectedSignature = "v";
} else {
mid = QMetaType::type(mp.typeName());
expectedSignature = QDBusMetaType::typeToSignature(mid);
if (expectedSignature == 0) {
qWarning("QDBusAbstractInterface: type %s must be registered with QtDBus before it can be "
"used to read property %s.%s",
mp.typeName(), qPrintable(interface), mp.name());
return QVariant();
}
}
// try to read this property
QDBusMessage msg = QDBusMessage::createMethodCall(service, path,
QLatin1String(DBUS_INTERFACE_PROPERTIES),
QLatin1String("Get"));
msg << interface << QString::fromUtf8(mp.name());
QDBusMessage reply = connection.call(msg, QDBus::Block);
if (reply.type() != QDBusMessage::ReplyMessage) {
lastError = reply;
return QVariant();
}
if (reply.signature() != QLatin1String("v")) {
QString errmsg = QLatin1String("Invalid signature `%1' in return from call to "
DBUS_INTERFACE_PROPERTIES);
lastError = QDBusError(QDBusError::InvalidSignature, errmsg.arg(reply.signature()));
return QVariant();
}
QByteArray foundSignature;
const char *foundType = 0;
QVariant value = qvariant_cast<QDBusVariant>(reply.arguments().at(0)).variant();
if (value.userType() == mid)
return value; // simple match
if (value.userType() == qMetaTypeId<QDBusArgument>()) {
QDBusArgument arg = qvariant_cast<QDBusArgument>(value);
foundType = "user type";
foundSignature = arg.currentSignature().toLatin1();
if (foundSignature == expectedSignature) {
void *null = 0;
QVariant result(mid, null);
QDBusMetaType::demarshall(arg, mid, result.data());
if (mp.type() == QVariant::LastType)
// special case: QVariant
return qvariant_cast<QDBusVariant>(result).variant();
return result;
}
} else {
foundType = value.typeName();
foundSignature = QDBusMetaType::typeToSignature(value.userType());
}
// there was an error...
QString errmsg = QLatin1String("Unexpected `%1' (%2) when retrieving property `%3.%4' "
"(expected type `%5' (%6))");
lastError = QDBusError(QDBusError::InvalidSignature,
errmsg.arg(QString::fromLatin1(foundType),
QString::fromLatin1(foundSignature),
interface,
QString::fromUtf8(mp.name()),
QString::fromLatin1(mp.typeName()),
QString::fromLatin1(expectedSignature)));
return QVariant();
}
