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// Copyright (C) 2018 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qqmladaptormodel_p.h"
#include <private/qqmldmabstractitemmodeldata_p.h>
#include <private/qqmldmlistaccessordata_p.h>
#include <private/qqmldmobjectdata_p.h>
QT_BEGIN_NAMESPACE
QQmlAdaptorModel::Accessors::~Accessors()
{
}
QQmlAdaptorModel::QQmlAdaptorModel()
: QQmlGuard<QObject>(QQmlAdaptorModel::objectDestroyedImpl, nullptr)
, accessors(&m_nullAccessors)
{
}
QQmlAdaptorModel::~QQmlAdaptorModel()
{
accessors->cleanup(*this);
}
void QQmlAdaptorModel::setModel(const QVariant &variant)
{
accessors->cleanup(*this);
// Don't use variant anymore after this. list may transform it.
list.setList(variant);
modelStrongReference.clear();
if (QObject *object = qvariant_cast<QObject *>(list.list())) {
if (QQmlData *ddata = QQmlData::get(object))
modelStrongReference = ddata->jsWrapper;
setObject(object);
if (qobject_cast<QAbstractItemModel *>(object))
accessors = new VDMAbstractItemModelDataType(this);
else
accessors = new VDMObjectDelegateDataType;
} else if (list.type() == QQmlListAccessor::ListProperty) {
auto object = static_cast<const QQmlListReference *>(list.list().constData())->object();
if (QQmlData *ddata = QQmlData::get(object))
modelStrongReference = ddata->jsWrapper;
setObject(object);
accessors = new VDMObjectDelegateDataType;
} else if (list.type() == QQmlListAccessor::ObjectList) {
setObject(nullptr);
accessors = new VDMObjectDelegateDataType;
} else if (list.type() != QQmlListAccessor::Invalid
&& list.type() != QQmlListAccessor::Instance) { // Null QObject
setObject(nullptr);
accessors = new VDMListDelegateDataType(this);
} else {
setObject(nullptr);
accessors = &m_nullAccessors;
}
}
void QQmlAdaptorModel::invalidateModel()
{
accessors->cleanup(*this);
accessors = &m_nullAccessors;
// Don't clear the model object as we still need the guard to clear the list variant if the
// object is destroyed.
}
bool QQmlAdaptorModel::isValid() const
{
return accessors != &m_nullAccessors;
}
int QQmlAdaptorModel::count() const
{
return rowCount() * columnCount();
}
int QQmlAdaptorModel::rowCount() const
{
return qMax(0, accessors->rowCount(*this));
}
int QQmlAdaptorModel::columnCount() const
{
return qMax(0, accessors->columnCount(*this));
}
int QQmlAdaptorModel::rowAt(int index) const
{
int count = rowCount();
return count <= 0 ? -1 : index % count;
}
int QQmlAdaptorModel::columnAt(int index) const
{
int count = rowCount();
return count <= 0 ? -1 : index / count;
}
int QQmlAdaptorModel::indexAt(int row, int column) const
{
return column * rowCount() + row;
}
void QQmlAdaptorModel::useImportVersion(QTypeRevision revision)
{
modelItemRevision = revision;
}
void QQmlAdaptorModel::objectDestroyedImpl(QQmlGuardImpl *guard)
{
auto This = static_cast<QQmlAdaptorModel *>(guard);
This->setModel(QVariant());
}
QT_END_NAMESPACE
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