public function getFormInformation( $tabIndex = 1 ) {

        if ( isset( $this->captchaFallback ) && $this->captchaFallback ) {
            $captcha = $this->getCaptcha();
            $index = $this->storeCaptcha( $captcha );

            return [
                'html' => "<p><label for=\"wpCaptchaWord\">{$captcha['question']} = </label>" .
                          Xml::element( 'input', [
                              'name' => 'wpCaptchaWord',
                              'class' => 'mw-ui-input',
                              'id' => 'wpCaptchaWord',
                              'size' => 5,
                              'autocomplete' => 'off',
                              'tabindex' => $tabIndex
                          ] ) . // tab in before the edit textarea
                          "</p>\n" . Xml::element( 'input', [
                        'type' => 'hidden',
                        'name' => 'wpCaptchaId',
                        'id' => 'wpCaptchaId',
                        'value' => $index
                    ] )
            ];
        } else {
            $this->captchaFallback = true;
            //create Invisible captcha
            return [
                'html' => "<button type=\"button\" onclick='document.getElementsByTagName(wpCaptchaFallback).value = false'>pass<\button>".
                          "<script></script>".
                          Xml::element( 'input', [
                              'type' => 'hidden',
                              'name' => 'wpCaptchaFallback',
                              'id' => 'wpCaptchaFallback',
                              'value' => $this->captchaFallback
                          ] )
            ];

        }
    }