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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt 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 General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** 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-3.0.html.
**
****************************************************************************/
#include "nodeinstancesignalspy.h"
#include "objectnodeinstance.h"
#include <qmlprivategate.h>
#include <QMetaProperty>
#include <QMetaObject>
#include <QDebug>
#include <QSharedPointer>
#include <QQmlProperty>
namespace QmlDesigner {
namespace Internal {
NodeInstanceSignalSpy::NodeInstanceSignalSpy() :
QObject()
{
blockSignals(true);
}
void NodeInstanceSignalSpy::setObjectNodeInstance(const ObjectNodeInstance::Pointer &nodeInstance)
{
methodeOffset = QObject::staticMetaObject.methodCount() + 1;
registerObject(nodeInstance->object());
m_objectNodeInstance = nodeInstance;
}
void NodeInstanceSignalSpy::registerObject(QObject *spiedObject)
{
if (m_registeredObjectList.contains(spiedObject)) // prevent cycles
return;
m_registeredObjectList.append(spiedObject);
for (int index = QObject::staticMetaObject.propertyOffset();
index < spiedObject->metaObject()->propertyCount();
index++) {
QMetaProperty metaProperty = spiedObject->metaObject()->property(index);
registerProperty(metaProperty, spiedObject);
registerChildObject(metaProperty, spiedObject);
}
}
void NodeInstanceSignalSpy::registerProperty(const QMetaProperty &metaProperty, QObject *spiedObject, const PropertyName &propertyPrefix)
{
if (metaProperty.isReadable()
&& metaProperty.isWritable()
&& !QmlPrivateGate::isPropertyQObject(metaProperty)
&& metaProperty.hasNotifySignal()) {
QMetaMethod metaMethod = metaProperty.notifySignal();
QMetaObject::connect(spiedObject, metaMethod.methodIndex(), this, methodeOffset, Qt::DirectConnection);
m_indexPropertyHash.insert(methodeOffset, propertyPrefix + PropertyName(metaProperty.name()));
methodeOffset++;
}
}
void NodeInstanceSignalSpy::registerChildObject(const QMetaProperty &metaProperty, QObject *spiedObject)
{
if (metaProperty.isReadable()
&& !metaProperty.isWritable()
&& QmlPrivateGate::isPropertyQObject(metaProperty)
&& QLatin1String(metaProperty.name()) != QLatin1String("parent")) {
QObject *childObject = QmlPrivateGate::readQObjectProperty(metaProperty, spiedObject);
if (childObject) {
for (int index = QObject::staticMetaObject.propertyOffset();
index < childObject->metaObject()->propertyCount();
index++) {
QMetaProperty childMetaProperty = childObject->metaObject()->property(index);
registerProperty(childMetaProperty, childObject, PropertyName(metaProperty.name()) + '.');
}
}
}
}
int NodeInstanceSignalSpy::qt_metacall(QMetaObject::Call call, int methodId, void **a)
{
if (call == QMetaObject::InvokeMetaMethod && methodId > QObject::staticMetaObject.methodCount()) {
ObjectNodeInstance::Pointer nodeInstance = m_objectNodeInstance.toStrongRef();
if (nodeInstance && nodeInstance->nodeInstanceServer() && nodeInstance->isValid()) {
foreach (const PropertyName &propertyName, m_indexPropertyHash.values(methodId))
nodeInstance->nodeInstanceServer()->notifyPropertyChange(nodeInstance->instanceId(), propertyName);
}
}
return QObject::qt_metacall(call, methodId, a);
}
} // namespace Internal
} // namespace QmlDesigner
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