QmlPuppet: Register callback for notifyPropertyChange

MetaObject cannot have a dependency on ObjectNodeInstance.
Instead we register a callback.

Change-Id: I9f6e096c67caf1abd525201c9bacd363d31a2fa2
Reviewed-by: Alessandro Portale <alessandro.portale@theqtcompany.com>

share/qtcreator/qml/qmlpuppet/qml2puppet/instances/nodeinstanceserver.cpp

@@ -110,6 +110,16 @@ namespace {
 
 namespace QmlDesigner {
 
+static NodeInstanceServer *nodeInstanceServerInstance = 0;
+
+static void notifyPropertyChangeCallBackFunction(QObject *object, const PropertyName &propertyName)
+{
+    qint32 id = nodeInstanceServerInstance->instanceForObject(object).instanceId();
+    nodeInstanceServerInstance->notifyPropertyChange(id, propertyName);
+}
+
+static void (*notifyPropertyChangeCallBackPointer)(QObject *, const PropertyName &) = &notifyPropertyChangeCallBackFunction;
+
 NodeInstanceServer::NodeInstanceServer(NodeInstanceClientInterface *nodeInstanceClient) :
     NodeInstanceServerInterface(),
     m_childrenChangeEventFilter(new Internal::ChildrenChangeEventFilter(this)),
@@ -122,6 +132,8 @@ NodeInstanceServer::NodeInstanceServer(NodeInstanceClientInterface *nodeInstance
     qmlRegisterType<DummyContextObject>("QmlDesigner", 1, 0, "DummyContextObject");
 
     connect(m_childrenChangeEventFilter.data(), SIGNAL(childrenChanged(QObject*)), this, SLOT(emitParentChanged(QObject*)));
+    nodeInstanceServerInstance = this;
+    Internal::QmlPrivateGate::registerNotifyPropertyChangeCallBack(notifyPropertyChangeCallBackPointer);
 }
 
 NodeInstanceServer::~NodeInstanceServer()

share/qtcreator/qml/qmlpuppet/qmlprivategate/metaobject.cpp

@@ -46,6 +46,7 @@ namespace Internal {
 namespace QmlPrivateGate {
 
 static QHash<QDynamicMetaObjectData *, bool> nodeInstanceMetaObjectList;
+static void (*notifyPropertyChangeCallBack)(QObject*, const PropertyName &propertyName) = 0;
 
 struct MetaPropertyData {
     inline QPair<QVariant, bool> &getDataRef(int idx) {
@@ -328,9 +329,11 @@ void MetaObject::notifyPropertyChange(int id)
 
     if (objectNodeInstance && objectNodeInstance->nodeInstanceServer()) {
         if (id < propertyOffset()) {
-            objectNodeInstance->nodeInstanceServer()->notifyPropertyChange(objectNodeInstance->instanceId(), propertyById.name());
+            if (notifyPropertyChangeCallBack)
+                notifyPropertyChangeCallBack(myObject(), propertyById.name());
         } else {
-            objectNodeInstance->nodeInstanceServer()->notifyPropertyChange(objectNodeInstance->instanceId(), name(id - propertyOffset()));
+            if (notifyPropertyChangeCallBack)
+                notifyPropertyChangeCallBack(myObject(), name(id - propertyOffset()));
         }
     }
 }
@@ -350,6 +353,11 @@ void MetaObject::copyTypeMetaObject()
     *static_cast<QMetaObject *>(this) = *m_type->metaObject();
 }
 
+void MetaObject::registerNotifyPropertyChangeCallBack(void (*callback)(QObject *, const PropertyName &))
+{
+    notifyPropertyChangeCallBack = callback;
+}
+
 } // namespace QmlPrivateGate
 
 } // namespace Internal

share/qtcreator/qml/qmlpuppet/qmlprivategate/metaobject.h

@@ -58,6 +58,7 @@ class MetaObject : public QQmlVMEMetaObject
 public:
     ~MetaObject();
 
+    static void registerNotifyPropertyChangeCallBack(void (*callback)(QObject*, const PropertyName &propertyName));
 
 protected:
     MetaObject(const ObjectNodeInstancePointer &nodeInstance, QQmlEngine *engine);

share/qtcreator/qml/qmlpuppet/qmlprivategate/qmlprivategate.cpp

@@ -779,6 +779,11 @@ void getPropertyCache(QObject *object, QQmlEngine *engine)
     QQmlEnginePrivate::get(engine)->cache(object->metaObject());
 }
 
+void registerNotifyPropertyChangeCallBack(void (*callback)(QObject *, const PropertyName &))
+{
+    MetaObject::registerNotifyPropertyChangeCallBack(callback);
+}
+
 ComponentCompleteDisabler::ComponentCompleteDisabler()
 {
     DesignerSupport::disableComponentComplete();

share/qtcreator/qml/qmlpuppet/qmlprivategate/qmlprivategate.h

@@ -127,9 +127,12 @@ public:
 
     } // namespace PropertyChanges
 
+
     bool isSubclassOf(QObject *object, const QByteArray &superTypeName);
     void getPropertyCache(QObject *object, QQmlEngine *engine);
 
+    void registerNotifyPropertyChangeCallBack(void (*callback)(QObject *, const PropertyName &));
+
 } // namespace QmlPrivateGate
 } // namespace Internal
 } // namespace QmlDesigner