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/*
qmlcontextpropertyadaptor.cpp
This file is part of GammaRay, the Qt application inspection and manipulation tool.
SPDX-FileCopyrightText: 2016 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
Author: Volker Krause <volker.krause@kdab.com>
SPDX-License-Identifier: GPL-2.0-or-later
Contact KDAB at <info@kdab.com> for commercial licensing options.
*/
#include "qmlcontextpropertyadaptor.h"
#include <core/propertydata.h>
#include <QQmlContext>
#include <private/qqmlcontext_p.h>
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
#include <private/qqmlcontextdata_p.h>
#include <private/qv4identifierhashdata_p.h>
#else
#include <private/qv4identifier_p.h>
#endif
#include <QDebug>
using namespace GammaRay;
QmlContextPropertyAdaptor::QmlContextPropertyAdaptor(QObject *parent)
: PropertyAdaptor(parent)
{
}
QmlContextPropertyAdaptor::~QmlContextPropertyAdaptor() = default;
int QmlContextPropertyAdaptor::count() const
{
return ( int )m_contextPropertyNames.size();
}
PropertyData QmlContextPropertyAdaptor::propertyData(int index) const
{
PropertyData pd;
if (!object().isValid())
return pd;
Q_ASSERT(index >= 0);
Q_ASSERT(index < m_contextPropertyNames.size());
auto context = qobject_cast<QQmlContext *>(object().qtObject());
if (!context)
return pd;
pd.setName(m_contextPropertyNames.at(index));
pd.setValue(context->contextProperty(m_contextPropertyNames.at(index)));
pd.setClassName(tr("QML Context Property"));
pd.setAccessFlags(PropertyData::Writable);
return pd;
}
void QmlContextPropertyAdaptor::writeProperty(int index, const QVariant &value)
{
Q_ASSERT(index >= 0);
Q_ASSERT(index < m_contextPropertyNames.size());
const auto &name = m_contextPropertyNames.at(index);
auto context = qobject_cast<QQmlContext *>(object().qtObject());
if (name.isEmpty() || !context)
return;
context->setContextProperty(name, value);
}
void QmlContextPropertyAdaptor::doSetObject(const ObjectInstance &oi)
{
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
auto context = qobject_cast<QQmlContext *>(oi.qtObject());
Q_ASSERT(context);
auto contextData = QQmlContextData::get(context);
Q_ASSERT(contextData);
const auto &propNames = contextData->propertyNames();
m_contextPropertyNames.clear();
m_contextPropertyNames.reserve(propNames.count());
QV4::IdentifierHashEntry *e = propNames.d->entries;
QV4::IdentifierHashEntry *end = e + propNames.d->alloc;
while (e < end) {
if (e->identifier.isValid())
m_contextPropertyNames.push_back(e->identifier.toQString());
++e;
}
#else
auto context = qobject_cast<QQmlContext *>(oi.qtObject());
Q_ASSERT(context);
auto contextData = QQmlContextData::get(context);
Q_ASSERT(contextData);
auto priv = contextData->asQQmlContextPrivate();
Q_ASSERT(priv);
const int numProps = priv->numPropertyValues();
#if QT_VERSION < QT_VERSION_CHECK(6, 2, 0)
const auto propNames = contextData->propertyNames();
#endif
for (int i = 0; i < numProps; ++i) {
#if QT_VERSION < QT_VERSION_CHECK(6, 2, 0)
const auto prop = propNames.findId(i);
#else
const auto prop = contextData->propertyName(i);
#endif
if (!prop.isEmpty()) {
m_contextPropertyNames.push_back(prop);
}
}
#endif
}
QmlContextPropertyAdaptorFactory *QmlContextPropertyAdaptorFactory::s_instance = nullptr;
PropertyAdaptor *QmlContextPropertyAdaptorFactory::create(const ObjectInstance &oi,
QObject *parent) const
{
if (oi.type() != ObjectInstance::QtObject || !oi.qtObject())
return nullptr;
if (qobject_cast<QQmlContext *>(oi.qtObject()))
return new QmlContextPropertyAdaptor(parent);
return nullptr;
}
QmlContextPropertyAdaptorFactory *QmlContextPropertyAdaptorFactory::instance()
{
if (!s_instance)
s_instance = new QmlContextPropertyAdaptorFactory;
return s_instance;
}
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