1 files changed, 59 insertions, 0 deletions
diff --git a/src/qml/common/qqmlsignalnames_p.h b/src/qml/common/qqmlsignalnames_p.h
new file mode 100644
index 0000000000..9c3d192666
--- /dev/null
+++ b/src/qml/common/qqmlsignalnames_p.h
@@ -0,0 +1,59 @@
+// Copyright (C) 2023 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 QQMLSIGNALANDPROPERTYNAMES_P_H
+#define QQMLSIGNALANDPROPERTYNAMES_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <cstddef>
+#include <optional>
+
+#include <QtQml/private/qtqmlglobal_p.h>
+#include <QtCore/qstringview.h>
+#include <QtCore/qstring.h>
+#include <type_traits>
+
+QT_BEGIN_NAMESPACE
+
+class Q_QML_EXPORT QQmlSignalNames
+{
+public:
+    static QString propertyNameToChangedSignalName(QStringView property);
+    static QByteArray propertyNameToChangedSignalName(QUtf8StringView property);
+
+    static QString propertyNameToChangedHandlerName(QStringView property);
+
+    static QString signalNameToHandlerName(QAnyStringView signal);
+
+    static std::optional<QString> changedSignalNameToPropertyName(QStringView changeSignal);
+    static std::optional<QByteArray> changedSignalNameToPropertyName(QUtf8StringView changeSignal);
+
+    static std::optional<QString> changedHandlerNameToPropertyName(QStringView handler);
+    static std::optional<QByteArray> changedHandlerNameToPropertyName(QUtf8StringView handler);
+
+    static std::optional<QString> handlerNameToSignalName(QStringView handler);
+    static std::optional<QString> changedHandlerNameToSignalName(QStringView changedHandler);
+
+    static bool isChangedHandlerName(QStringView signalName);
+    static bool isChangedSignalName(QStringView signalName);
+    static bool isHandlerName(QStringView signalName);
+
+    static QString addPrefixToPropertyName(QStringView prefix, QStringView propertyName);
+
+    // ### Qt7: remove this
+    static std::optional<QString> badHandlerNameToSignalName(QStringView handler);
+};
+
+QT_END_NAMESPACE
+
+#endif // QQMLSIGNALANDPROPERTYNAMES_P_H