public function editorInternalLink()
    {
        $showLinkText = $this->getOwner()->getRequest()->getVar('requireLinkText');
        $factory = InternalLinkFormFactory::singleton();
        return $factory->getForm(
            $this->getOwner(),
            "editorInternalLink",
            [ 'RequireLinkText' => isset($showLinkText) ]
        );
    }