Shortcode_Button::process_form PHP Method

    public function process_form()
    {
        $cmb_config = $this->get_cmb_config();
        $fields = array();
        if (isset($_REQUEST['fields'])) {
            // Parse the URL query string of the fields array.
            parse_str($_POST['fields'], $fields);
        }
        if (isset($_REQUEST['content']) && !empty($_REQUEST['content'])) {
            $fields['sccontent'] = $_REQUEST['content'];
        }
        // no cmb? just filter and send it back
        if (empty($cmb_config)) {
            wp_send_json_success($this->filter_form_fields($fields));
        }
        $this->process_cmb_form($fields);
    }