Revert "QmlDesigner: Remove NodeInstancesSignalSpy"

This is fixing some anchor movement bugs.

This reverts commit ae409f8bdf070cc7875da1896abcdaa077f5e932.

Change-Id: Ibe9b8b2601e2bcd1c249b5feda06fb3a29482f4b
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>

1 files changed, 125 insertions, 0 deletions

diff --git a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/nodeinstancesignalspy.cpp b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/nodeinstancesignalspy.cpp
new file mode 100644
index 0000000000..40de94aecc
--- /dev/null
+++ b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/nodeinstancesignalspy.cpp
@@ -0,0 +1,125 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#include "nodeinstancesignalspy.h"
+#include "objectnodeinstance.h"
+
+#include <QMetaProperty>
+#include <QMetaObject>
+#include <QDebug>
+#include <QSharedPointer>
+#include <private/qqmlmetatype_p.h>
+
+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, const PropertyName &prefix)
+{
+    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);
+
+             // handle dot properties and connect the signals to the object
+             if (metaProperty.isReadable()
+                 && !metaProperty.isWritable()
+                 && QQmlMetaType::isQObject(metaProperty.userType())) {
+                  QObject *propertyObject = QQmlMetaType::toQObject(metaProperty.read(spiedObject));
+                  if (propertyObject)
+                      registerObject(propertyObject, prefix + metaProperty.name() + '.');
+             } else if (metaProperty.hasNotifySignal()) {
+                 QMetaMethod metaMethod = metaProperty.notifySignal();
+                 bool isConnecting = QMetaObject::connect(spiedObject, metaMethod.methodIndex(), this, methodeOffset, Qt::DirectConnection);
+                 Q_ASSERT(isConnecting);
+                 Q_UNUSED(isConnecting);
+                 m_indexPropertyHash.insert(methodeOffset, prefix + metaProperty.name());
+                 methodeOffset++;
+             }
+
+             // search recursive in objects
+             if (metaProperty.isReadable()
+                     && metaProperty.isWritable()
+                     && QQmlMetaType::isQObject(metaProperty.userType())
+                     && QLatin1String(metaProperty.name()) != QLatin1String("parent")) {
+                 QObject *propertyObject = QQmlMetaType::toQObject(metaProperty.read(spiedObject));
+                 if (propertyObject)
+                     registerObject(propertyObject, prefix + metaProperty.name() + '/');
+             }
+
+             // search recursive in objects list
+             if (metaProperty.isReadable()
+                 && QQmlMetaType::isList(metaProperty.userType())) {
+                 QQmlListReference list(spiedObject, metaProperty.name());
+
+                 if (list.canCount() && list.canAt()) {
+
+                     for (int i = 0; i < list.count(); i++) {
+                         QObject *propertyObject = list.at(i);
+                         if (propertyObject)
+                             registerObject(propertyObject, prefix + 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()) {
+            nodeInstance->nodeInstanceServer()->notifyPropertyChange(nodeInstance->instanceId(), m_indexPropertyHash.value(methodId));
+        }
+
+    }
+
+    return QObject::qt_metacall(call, methodId, a);
+}
+
+} // namespace Internal
+} // namespace QmlDesigner