mirror of https://github.com/nymea/nymea.git
431 lines
17 KiB
C++
431 lines
17 KiB
C++
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* *
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* Copyright (C) 2019 Michael Zanetti <michael.zanetti@nymea.io> *
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* *
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* This file is part of nymea. *
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* *
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* nymea is free software: you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation, version 2 of the License. *
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* *
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* nymea is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with nymea. If not, see <http://www.gnu.org/licenses/>. *
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* *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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#include "jsonhandler.h"
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#include "loggingcategories.h"
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#include <QDebug>
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#include <QDateTime>
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JsonHandler::JsonHandler(QObject *parent) : QObject(parent)
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{
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qRegisterMetaType<QVariant::Type>();
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registerEnum<BasicType>();
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}
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QVariantMap JsonHandler::jsonEnums() const
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{
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return m_enums;
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}
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QVariantMap JsonHandler::jsonFlags() const
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{
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return m_flags;
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}
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QVariantMap JsonHandler::jsonObjects() const
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{
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return m_objects;
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}
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QVariantMap JsonHandler::jsonMethods() const
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{
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return m_methods;
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}
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QVariantMap JsonHandler::jsonNotifications() const
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{
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return m_notifications;
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}
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QString JsonHandler::objectRef(const QString &objectName)
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{
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return "$ref:" + objectName;
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}
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JsonHandler::BasicType JsonHandler::variantTypeToBasicType(QVariant::Type variantType)
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{
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switch (variantType) {
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case QVariant::Uuid:
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return Uuid;
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case QVariant::String:
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return String;
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case QVariant::StringList:
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return StringList;
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case QVariant::Int:
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return Int;
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case QVariant::UInt:
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return Uint;
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case QVariant::Double:
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return Double;
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case QVariant::Bool:
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return Bool;
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case QVariant::Color:
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return Color;
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case QVariant::Time:
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return Time;
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case QVariant::Map:
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return Object;
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case QVariant::DateTime:
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return Uint; // DateTime is represented as time_t
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default:
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return Variant;
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}
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}
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QVariant::Type JsonHandler::basicTypeToVariantType(JsonHandler::BasicType basicType)
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{
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switch (basicType) {
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case Uuid:
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return QVariant::Uuid;
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case String:
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return QVariant::String;
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case StringList:
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return QVariant::StringList;
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case Int:
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return QVariant::Int;
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case Uint:
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return QVariant::UInt;
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case Double:
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return QVariant::Double;
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case Bool:
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return QVariant::Bool;
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case Color:
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return QVariant::Color;
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case Time:
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return QVariant::Time;
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case Object:
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return QVariant::Map;
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case Variant:
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return QVariant::Invalid;
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}
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return QVariant::Invalid;
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}
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void JsonHandler::registerObject(const QString &name, const QVariantMap &object)
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{
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m_objects.insert(name, object);
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}
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void JsonHandler::registerMethod(const QString &name, const QString &description, const QVariantMap ¶ms, const QVariantMap &returns, bool /*deprecated*/)
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{
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QVariantMap methodData;
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methodData.insert("description", description);
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methodData.insert("params", params);
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methodData.insert("returns", returns);
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// methodData.insert("deprecated", deprecated);
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m_methods.insert(name, methodData);
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}
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void JsonHandler::registerNotification(const QString &name, const QString &description, const QVariantMap ¶ms, bool /*deprecated*/)
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{
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QVariantMap notificationData;
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notificationData.insert("description", description);
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notificationData.insert("params", params);
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// notificationData.insert("deprecated", deprecated);
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m_notifications.insert(name, notificationData);
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}
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JsonReply *JsonHandler::createReply(const QVariantMap &data) const
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{
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return JsonReply::createReply(const_cast<JsonHandler*>(this), data);
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}
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JsonReply *JsonHandler::createAsyncReply(const QString &method) const
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{
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return JsonReply::createAsyncReply(const_cast<JsonHandler*>(this), method);
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}
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void JsonHandler::registerObject(const QMetaObject &metaObject)
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{
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QString className = QString(metaObject.className()).split("::").last();
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QVariantMap description;
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for (int i = 0; i < metaObject.propertyCount(); i++) {
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QMetaProperty metaProperty = metaObject.property(i);
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QString name = metaProperty.name();
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if (name == "objectName") {
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continue; // Skip QObject's objectName property
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}
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if (metaProperty.isUser()) {
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name.prepend("o:");
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}
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QVariant typeName;
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if (metaProperty.type() == QVariant::UserType) {
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if (metaProperty.typeName() == QStringLiteral("QVariant::Type")) {
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typeName = QString("$ref:BasicType");
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} else if (QString(metaProperty.typeName()).startsWith("QList")) {
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QString elementType = QString(metaProperty.typeName()).remove("QList<").remove(">");
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QVariant::Type variantType = QVariant::nameToType(elementType.toUtf8());
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typeName = QVariantList() << enumValueName(variantTypeToBasicType(variantType));
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} else {
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typeName = QString("$ref:%1").arg(QString(metaProperty.typeName()).split("::").last());
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}
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} else if (metaProperty.isEnumType()) {
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typeName = QString("$ref:%1").arg(QString(metaProperty.typeName()).split("::").last());
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} else if (metaProperty.isFlagType()) {
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typeName = QVariantList() << "$ref:" + m_flagsEnums.value(metaProperty.name());
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} else if (metaProperty.type() == QVariant::List) {
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typeName = QVariantList() << enumValueName(Variant);
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} else {
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typeName = enumValueName(variantTypeToBasicType(metaProperty.type()));
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}
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description.insert(name, typeName);
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}
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m_objects.insert(className, description);
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m_metaObjects.insert(className, metaObject);
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}
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QVariant JsonHandler::pack(const QMetaObject &metaObject, const void *value) const
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{
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QString className = QString(metaObject.className()).split("::").last();
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if (m_listMetaObjects.contains(className)) {
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QVariantList ret;
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QMetaProperty countProperty = metaObject.property(metaObject.indexOfProperty("count"));
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QMetaObject entryMetaObject = m_metaObjects.value(m_listEntryTypes.value(className));
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int count = countProperty.readOnGadget(value).toInt();
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QMetaMethod getMethod = metaObject.method(metaObject.indexOfMethod("get(int)"));
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for (int i = 0; i < count; i++) {
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QVariant entry;
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getMethod.invokeOnGadget(const_cast<void*>(value), Q_RETURN_ARG(QVariant, entry), Q_ARG(int, i));
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ret.append(pack(entryMetaObject, entry.data()));
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}
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return ret;
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}
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if (m_metaObjects.contains(className)) {
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QVariantMap ret;
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for (int i = 0; i < metaObject.propertyCount(); i++) {
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QMetaProperty metaProperty = metaObject.property(i);
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// Skip QObject's objectName property
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if (metaProperty.name() == QStringLiteral("objectName")) {
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continue;
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}
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QVariant propertyValue = metaProperty.readOnGadget(value);
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// If it's optional and empty, we may skip it
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if (metaProperty.isUser() && (!propertyValue.isValid() || propertyValue.isNull())) {
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continue;
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}
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// Pack flags
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if (metaProperty.isFlagType()) {
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QString flagName = QString(metaProperty.typeName()).split("::").last();
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Q_ASSERT_X(m_metaFlags.contains(flagName), this->metaObject()->className(), QString("Cannot pack %1. %2 is not registered in this handler.").arg(className).arg(flagName).toUtf8());
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QMetaEnum metaFlag = m_metaFlags.value(flagName);
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int flagValue = propertyValue.toInt();
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QStringList flags;
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for (int i = 0; i < metaFlag.keyCount(); i++) {
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if ((metaFlag.value(i) & flagValue) > 0) {
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flags.append(metaFlag.key(i));
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}
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}
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ret.insert(metaProperty.name(), flags);
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continue;
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}
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// Pack enums
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if (metaProperty.isEnumType()) {
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QString enumName = QString(metaProperty.typeName()).split("::").last();
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Q_ASSERT_X(m_metaEnums.contains(enumName), this->metaObject()->className(), QString("Cannot pack %1. %2 is not registered in this handler.").arg(className).arg(metaProperty.typeName()).toUtf8());
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QMetaEnum metaEnum = m_metaEnums.value(enumName);
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ret.insert(metaProperty.name(), metaEnum.key(propertyValue.toInt()));
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continue;
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}
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// Basic type/Variant type
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if (metaProperty.typeName() == QStringLiteral("QVariant::Type")) {
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QMetaEnum metaEnum = QMetaEnum::fromType<BasicType>();
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ret.insert(metaProperty.name(), metaEnum.key(variantTypeToBasicType(propertyValue.template value<QVariant::Type>())));
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continue;
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}
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// Our own objects
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if (metaProperty.type() == QVariant::UserType) {
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QString propertyTypeName = QString(metaProperty.typeName()).split("::").last();
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if (m_listMetaObjects.contains(propertyTypeName)) {
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QMetaObject entryMetaObject = m_listMetaObjects.value(propertyTypeName);
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QVariant packed = pack(entryMetaObject, propertyValue.data());
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if (!metaProperty.isUser() || packed.toList().count() > 0) {
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ret.insert(metaProperty.name(), packed);
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}
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continue;
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}
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if (m_metaObjects.contains(propertyTypeName)) {
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QMetaObject entryMetaObject = m_metaObjects.value(propertyTypeName);
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QVariant packed = pack(entryMetaObject, propertyValue.data());
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int isValidIndex = entryMetaObject.indexOfMethod("isValid()");
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bool isValid = true;
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if (isValidIndex >= 0) {
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QMetaMethod isValidMethod = entryMetaObject.method(isValidIndex);
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isValidMethod.invokeOnGadget(propertyValue.data(), Q_RETURN_ARG(bool, isValid));
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}
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if (isValid || !metaProperty.isUser()) {
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ret.insert(metaProperty.name(), packed);
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}
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continue;
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}
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// Manually converting QList<int>... Only QVariantList is known to the meta system
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if (propertyTypeName.startsWith("QList<int>")) {
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qWarning() << "Packing list" << metaProperty.name() << propertyValue.toList();
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QVariantList list;
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foreach (int entry, propertyValue.value<QList<int>>()) {
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list << entry;
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}
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if (!list.isEmpty() || !metaProperty.isUser()) {
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ret.insert(metaProperty.name(), list);
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}
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continue;
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}
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Q_ASSERT_X(false, this->metaObject()->className(), QString("Unregistered property type: %1").arg(propertyTypeName).toUtf8());
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qCWarning(dcJsonRpc()) << "Cannot pack property of unregistered object type" << propertyTypeName;
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continue;
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}
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// Standard properties, QString, int etc...
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// Special treatment for QDateTime (converting to time_t)
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if (metaProperty.type() == QVariant::DateTime) {
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QDateTime dateTime = propertyValue.toDateTime();
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if (metaProperty.isUser() && dateTime.toTime_t() == 0) {
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continue;
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}
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propertyValue = propertyValue.toDateTime().toTime_t();
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} else if (metaProperty.type() == QVariant::Time) {
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propertyValue = propertyValue.toTime().toString("hh:mm");
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}
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ret.insert(metaProperty.name(), propertyValue);
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}
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return ret;
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}
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Q_ASSERT_X(false, this->metaObject()->className(), QString("Unregistered object type: %1").arg(className).toUtf8());
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qCWarning(dcJsonRpc()) << "Cannot pack object of unregistered type" << className;
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return QVariant();
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}
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QVariant JsonHandler::unpack(const QMetaObject &metaObject, const QVariant &value) const
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{
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QString typeName = QString(metaObject.className()).split("::").last();
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// If it's a list object, loop over count
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if (m_listMetaObjects.contains(typeName)) {
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qWarning() << "** Unpacking" << typeName;
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if (value.type() != QVariant::List) {
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qCWarning(dcJsonRpc()) << "Cannot unpack" << typeName << ". Value is not in list format:" << value;
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return QVariant();
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}
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QVariantList list = value.toList();
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int typeId = QMetaType::type(metaObject.className());
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void* ptr = QMetaType::create(typeId);
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Q_ASSERT_X(typeId != 0, this->metaObject()->className(), QString("Cannot handle unregistered meta type %1").arg(metaObject.className()).toUtf8());
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QMetaObject entryMetaObject = m_metaObjects.value(m_listEntryTypes.value(typeName));
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QMetaMethod putMethod = metaObject.method(metaObject.indexOfMethod("put(QVariant)"));
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foreach (const QVariant &variant, list) {
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QVariant value = unpack(entryMetaObject, variant);
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qWarning() << "Putting" << value << putMethod.name() << ptr << typeId;
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putMethod.invokeOnGadget(ptr, Q_ARG(QVariant, value));
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}
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QVariant ret = QVariant(typeId, ptr);
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QMetaType::destroy(typeId, ptr);
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return ret;
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}
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// if it's an object, loop over all properties
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if (m_metaObjects.contains(typeName)) {
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qWarning() << "*** Unpacking" << typeName;
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QVariantMap map = value.toMap();
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int typeId = QMetaType::type(metaObject.className());
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Q_ASSERT_X(typeId != 0, this->metaObject()->className(), QString("Cannot handle unregistered meta type %1").arg(typeName).toUtf8());
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void* ptr = QMetaType::create(typeId);
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for (int i = 0; i < metaObject.propertyCount(); i++) {
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QMetaProperty metaProperty = metaObject.property(i);
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if (metaProperty.name() == QStringLiteral("objectName")) {
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continue;
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}
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if (!metaProperty.isWritable()) {
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continue;
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}
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if (!metaProperty.isUser()) {
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Q_ASSERT_X(map.contains(metaProperty.name()), this->metaObject()->className(), QString("Missing property %1 in map.").arg(metaProperty.name()).toUtf8());
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}
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if (map.contains(metaProperty.name())) {
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QString propertyTypeName = QString(metaProperty.typeName()).split("::").last();
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QVariant variant = map.value(metaProperty.name());
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// recurse into child lists
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if (m_listMetaObjects.contains(propertyTypeName)) {
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QMetaObject propertyMetaObject = m_listMetaObjects.value(propertyTypeName);
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qWarning() << "Entering list object" << propertyTypeName << propertyMetaObject.className();
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metaProperty.writeOnGadget(ptr, unpack(propertyMetaObject, variant));
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continue;
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}
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// recurse into child objects
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if (m_metaObjects.contains(propertyTypeName)) {
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QMetaObject propertyMetaObject = m_metaObjects.value(propertyTypeName);
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metaProperty.writeOnGadget(ptr, unpack(propertyMetaObject, variant));
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continue;
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}
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if (metaProperty.typeName() == QStringLiteral("QList<int>")) {
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QList<int> intList;
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foreach (const QVariant &val, variant.toList()) {
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intList.append(val.toInt());
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}
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metaProperty.writeOnGadget(ptr, QVariant::fromValue(intList));
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continue;
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}
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// Special treatment for QDateTime (convert from time_t)
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if (metaProperty.type() == QVariant::DateTime) {
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variant = QDateTime::fromTime_t(variant.toUInt());
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} else if (metaProperty.type() == QVariant::Time) {
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variant = QTime::fromString(variant.toString(), "hh:mm");
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}
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// For basic properties just write the veriant as is
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metaProperty.writeOnGadget(ptr, variant);
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}
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}
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QVariant ret = QVariant(typeId, ptr);
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QMetaType::destroy(typeId, ptr);
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return ret;
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}
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return QVariant();
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}
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