LibWeb: Add legacy Option factory function

Author: https://github.com/Igoorx
Commit: 8da99c3014
Pull-request: https://github.com/SerenityOS/serenity/pull/13499
Reviewed-by: https://github.com/linusg

Userland/Libraries/LibWeb/Bindings/OptionConstructor.h

@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2022, the SerenityOS developers.
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/StringView.h>
+#include <LibJS/Runtime/NativeFunction.h>
+
+namespace Web::Bindings {
+
+class OptionConstructor final : public JS::NativeFunction {
+public:
+    explicit OptionConstructor(JS::GlobalObject&);
+    virtual void initialize(JS::GlobalObject&) override;
+    virtual ~OptionConstructor() override = default;
+
+    virtual JS::ThrowCompletionOr<JS::Value> call() override;
+    virtual JS::ThrowCompletionOr<JS::Object*> construct(JS::FunctionObject& new_target) override;
+
+private:
+    virtual bool has_constructor() const override { return true; }
+    virtual StringView class_name() const override { return "OptionConstructor"sv; }
+};
+
+}