Integrate QML's object ownership with the JS collector

QML now behaves in a way similar to QtScript when it comes to QObject
ownership.

QT-2803

2 files changed, 3 insertions, 0 deletions

diff --git a/src/corelib/kernel/qobject.cpp b/src/corelib/kernel/qobject.cpp
index 389e6e7..68f34ca 100644
--- a/src/corelib/kernel/qobject.cpp
+++ b/src/corelib/kernel/qobject.cpp
@@ -2033,6 +2033,8 @@ void QObjectPrivate::setParent_helper(QObject *o)
             }
         }
     }
+    if (!wasDeleted && declarativeData)
+        declarativeData->parentChanged(q, o);
 }
 
 /*!
diff --git a/src/corelib/kernel/qobject_p.h b/src/corelib/kernel/qobject_p.h
index cc5bf97..20e3da1 100644
--- a/src/corelib/kernel/qobject_p.h
+++ b/src/corelib/kernel/qobject_p.h
@@ -90,6 +90,7 @@ class Q_CORE_EXPORT QDeclarativeData
 public:
     virtual ~QDeclarativeData();
     virtual void destroyed(QObject *) = 0;
+    virtual void parentChanged(QObject *, QObject *) = 0;
 };
 
 class Q_CORE_EXPORT QObjectPrivate : public QObjectData