Add a declarative callback for when a QObject's objectName changes

Task-number: QTBUG-13999
Reviewed-by: Martin Jones

2 files changed, 7 insertions, 0 deletions

diff --git a/src/corelib/kernel/qobject.cpp b/src/corelib/kernel/qobject.cpp
index 8330e47..579c225 100644
--- a/src/corelib/kernel/qobject.cpp
+++ b/src/corelib/kernel/qobject.cpp
@@ -127,6 +127,7 @@ extern "C" Q_CORE_EXPORT void qt_removeObject(QObject *)
 
 void (*QAbstractDeclarativeData::destroyed)(QAbstractDeclarativeData *, QObject *) = 0;
 void (*QAbstractDeclarativeData::parentChanged)(QAbstractDeclarativeData *, QObject *, QObject *) = 0;
+void (*QAbstractDeclarativeData::objectNameChanged)(QAbstractDeclarativeData *, QObject *) = 0;
 
 QObjectData::~QObjectData() {}
 
@@ -1094,7 +1095,12 @@ QString QObject::objectName() const
 void QObject::setObjectName(const QString &name)
 {
     Q_D(QObject);
+    bool objectNameChanged = d->declarativeData && d->objectName != name;
+
     d->objectName = name;
+
+    if (objectNameChanged) 
+        d->declarativeData->objectNameChanged(d->declarativeData, this);
 }
 
 
diff --git a/src/corelib/kernel/qobject_p.h b/src/corelib/kernel/qobject_p.h
index 4800e6a..814769c 100644
--- a/src/corelib/kernel/qobject_p.h
+++ b/src/corelib/kernel/qobject_p.h
@@ -89,6 +89,7 @@ class Q_CORE_EXPORT QAbstractDeclarativeData
 public:
     static void (*destroyed)(QAbstractDeclarativeData *, QObject *);
     static void (*parentChanged)(QAbstractDeclarativeData *, QObject *, QObject *);
+    static void (*objectNameChanged)(QAbstractDeclarativeData *, QObject *);
 };
 
 class Q_CORE_EXPORT QObjectPrivate : public QObjectData