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/****************************************************************************
**
** Copyright (C) 2019 Luxoft Sweden AB
** Copyright (C) 2018 Pelagicore AG
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtIvi module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL-QTAS$
** Commercial License Usage
** Licensees holding valid commercial Qt Automotive Suite licenses may use
** this file in accordance with the commercial license agreement provided
** with the Software or, alternatively, in accordance with the terms
** contained in a written agreement between you and The Qt Company. For
** licensing terms and conditions see https://www.qt.io/terms-conditions.
** For further information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
** SPDX-License-Identifier: LGPL-3.0
**
****************************************************************************/
#include <qiviqmlconversion_helper.h>
#include <QtQml>
#include <private/qv4engine_p.h>
#include <private/qv4errorobject_p.h>
#include <private/qv4scopedvalue_p.h>
QT_BEGIN_NAMESPACE
namespace qtivi_helper {
static const QString valueLiteral = QStringLiteral("value");
static const QString typeLiteral = QStringLiteral("type");
}
using namespace qtivi_helper;
void qtivi_qmlOrCppWarning(const QObject *obj, const char *errorString)
{
qtivi_qmlOrCppWarning(obj, QLatin1String(errorString));
}
void qtivi_qmlOrCppWarning(const QObject *obj, const QString &errorString)
{
//If the object is not part of a javascript engine, print a normal warning
QJSEngine *jsEngine = qjsEngine(obj);
if (Q_UNLIKELY(!jsEngine)) {
qWarning("%s", qPrintable(errorString));
return;
}
//Try to get more information about the current line of execution
QV4::ExecutionEngine *v4 = jsEngine->handle();
QV4::Scope scope(v4);
QV4::Scoped<QV4::ErrorObject> error(scope);
QV4::StackTrace trace = v4->stackTrace(1);
if (!!error)
trace = *error->d()->stackTrace;
//If we don't have any information, let qmlWarning use its magic and find something
if (trace.isEmpty()) {
qmlWarning(obj) << errorString;
return;
}
v4->throwError(errorString);
}
/*!
\relates QIviSimulationEngine
Converts \a value from JSON to valid C++ types.
The provided JSON value needs to follow the \l{IviSimulatorDataFormat}{IviSimulator Data
Format}.
*/
QVariant qtivi_convertFromJSON(const QVariant &value)
{
QVariant val = value;
// First try to convert the values to a Map or a List
// This is needed as it could also store a QStringList or a Hash
if (val.canConvert(QMetaType::fromType<QVariantMap>()))
val.convert(QMetaType::fromType<QVariantMap>());
if (val.canConvert(QMetaType::fromType<QVariantList>()))
val.convert(QMetaType::fromType<QVariantList>());
if (val.metaType() == QMetaType::fromType<QVariantMap>()) {
const QVariantMap map = val.toMap();
if (map.contains(typeLiteral) && map.contains(valueLiteral)) {
const QString type = map.value(typeLiteral).toString();
const QVariant value = map.value(valueLiteral);
if (type == QStringLiteral("enum")) {
QString enumValue = value.toString();
const int lastIndex = enumValue.lastIndexOf(QStringLiteral("::"));
const QString className = enumValue.left(lastIndex) + QStringLiteral("*");
enumValue = enumValue.right(enumValue.count() - lastIndex - 2);
QMetaType metaType = QMetaType::fromName(className.toLatin1());
const QMetaObject *mo = metaType.metaObject();
if (Q_UNLIKELY(!mo)) {
qWarning() << "Couldn't retrieve MetaObject for enum parsing:" << map;
qWarning("Please make sure %s is registered in Qt's meta-type system: qRegisterMetaType<%s>()",
qPrintable(className), qPrintable(className));
return QVariant();
}
for (int i = mo->enumeratorOffset(); i < mo->enumeratorCount(); ++i) {
QMetaEnum me = mo->enumerator(i);
bool ok = false;
int value = me.keysToValue(enumValue.toLatin1(), &ok);
if (ok) {
return QVariant(QMetaType::fromName((QLatin1String(me.scope()) + QStringLiteral("::") + QLatin1String(me.enumName())).toLatin1()), &value);
}
}
qWarning() << "Couldn't parse the enum definition" << map;
return QVariant();
} else {
QMetaType metaType = QMetaType::fromName(type.toLatin1());
const QMetaObject *mo = metaType.metaObject();
if (Q_UNLIKELY(!mo)) {
qWarning() << "Couldn't retrieve MetaObject for struct parsing:" << map;
qWarning("Please make sure %s is registered in Qt's meta-type system: qRegisterMetaType<%s>()",
qPrintable(type), qPrintable(type));
return QVariant();
}
void *gadget = metaType.create();
if (!Q_UNLIKELY(gadget)) {
qWarning("Couldn't create a new instance of %s", metaType.name());
return QVariant();
}
/* Left here for debugging
for (int i = mo->methodOffset(); i < mo->methodCount(); ++i)
qDebug() << mo->method(i).methodSignature();
*/
int moIdx = mo->indexOfMethod("fromJSON(QVariant)");
if (Q_UNLIKELY(moIdx == -1)) {
qWarning("Couldn't find method: %s::fromJSON(QVariant)\n"
"If your are using code created by the ivigenerator, please regenerate"
"your frontend code. See AUTOSUITE-1374 for why this is needed",
metaType.name());
return QVariant();
}
mo->method(moIdx).invokeOnGadget(gadget, Q_ARG(QVariant, QVariant(value)));
return QVariant(metaType, gadget);
}
}
QVariantMap convertedValues;
for (auto i = map.constBegin(); i != map.constEnd(); ++i)
convertedValues.insert(i.key(), qtivi_convertFromJSON(i.value()));
return convertedValues;
} else if (val.metaType() == QMetaType::fromType<QVariantList>()) {
QVariantList values = val.toList();
for (auto i = values.begin(); i != values.end(); ++i)
*i = qtivi_convertFromJSON(*i);
return values;
}
return val;
}
QT_END_NAMESPACE
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