1 files changed, 41 insertions, 0 deletions
diff --git a/src/quickcontrols/qquickattachedpropertypropagator.h b/src/quickcontrols/qquickattachedpropertypropagator.h
new file mode 100644
index 0000000000..de3e20bf3f
--- /dev/null
+++ b/src/quickcontrols/qquickattachedpropertypropagator.h
@@ -0,0 +1,41 @@
+// Copyright (C) 2022 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QQUICKATTACHEDOBJECT_H
+#define QQUICKATTACHEDOBJECT_H
+
+#include <QtCore/qobject.h>
+#include <QtQuickControls2/qtquickcontrols2global.h>
+
+QT_BEGIN_NAMESPACE
+
+class QQuickAttachedPropertyPropagatorPrivate;
+
+class Q_QUICKCONTROLS2_EXPORT QQuickAttachedPropertyPropagator : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit QQuickAttachedPropertyPropagator(QObject *parent = nullptr);
+    ~QQuickAttachedPropertyPropagator();
+
+    QList<QQuickAttachedPropertyPropagator *> attachedChildren() const;
+
+    QQuickAttachedPropertyPropagator *attachedParent() const;
+
+protected:
+    void initialize();
+
+    virtual void attachedParentChange(QQuickAttachedPropertyPropagator *newParent, QQuickAttachedPropertyPropagator *oldParent);
+
+private:
+#ifndef QT_NO_DEBUG_STREAM
+    friend Q_QUICKCONTROLS2_EXPORT QDebug operator<<(QDebug debug, const QQuickAttachedPropertyPropagator *propagator);
+#endif
+
+    Q_DECLARE_PRIVATE(QQuickAttachedPropertyPropagator)
+};
+
+QT_END_NAMESPACE
+
+#endif // QQUICKATTACHEDOBJECT_H