Support passing QObject derived types to QML methods

QTBUG-13047

2 files changed, 15 insertions, 3 deletions

diff --git a/src/declarative/qml/qdeclarativeengine.cpp b/src/declarative/qml/qdeclarativeengine.cpp
index 8461368..e77a53e 100644
--- a/src/declarative/qml/qdeclarativeengine.cpp
+++ b/src/declarative/qml/qdeclarativeengine.cpp
@@ -2113,7 +2113,7 @@ bool QDeclarativeEnginePrivate::isQObject(int t)
 QObject *QDeclarativeEnginePrivate::toQObject(const QVariant &v, bool *ok) const
 {
     int t = v.userType();
-    if (m_compositeTypes.contains(t)) {
+    if (t == QMetaType::QObjectStar || m_compositeTypes.contains(t)) {
         if (ok) *ok = true;
         return *(QObject **)(v.constData());
     } else {
diff --git a/src/declarative/qml/qdeclarativeobjectscriptclass.cpp b/src/declarative/qml/qdeclarativeobjectscriptclass.cpp
index f439151..9d74238 100644
--- a/src/declarative/qml/qdeclarativeobjectscriptclass.cpp
+++ b/src/declarative/qml/qdeclarativeobjectscriptclass.cpp
@@ -625,11 +625,12 @@ private:
 
     char data[4 * sizeof(void *)];
     int type;
+    bool isObjectType;
 };
 }
 
 MetaCallArgument::MetaCallArgument()
-: type(QVariant::Invalid)
+: type(QVariant::Invalid), isObjectType(false)
 {
 }
 
@@ -744,12 +745,23 @@ void MetaCallArgument::fromScriptValue(int callType, QDeclarativeEngine *engine,
         new (&data) QVariant();
         type = -1;
 
-        QVariant v = QDeclarativeEnginePrivate::get(engine)->scriptValueToVariant(value);
+        QDeclarativeEnginePrivate *priv = QDeclarativeEnginePrivate::get(engine);
+        QVariant v = priv->scriptValueToVariant(value);
         if (v.userType() == callType) {
             *((QVariant *)&data) = v;
         } else if (v.canConvert((QVariant::Type)callType)) {
             *((QVariant *)&data) = v;
             ((QVariant *)&data)->convert((QVariant::Type)callType);
+        } else if (const QMetaObject *mo = priv->rawMetaObjectForType(callType)) {
+            QObject *obj = priv->toQObject(v);
+            
+            if (obj) {
+                const QMetaObject *objMo = obj->metaObject();
+                while (objMo && objMo != mo) objMo = objMo->superClass();
+                if (!objMo) obj = 0;
+            }
+
+            *((QVariant *)&data) = QVariant(callType, &obj);
         } else {
             *((QVariant *)&data) = QVariant(callType, (void *)0);
         }