forminator-pro-make-fields-read-only.php

<?php
/**
 * Script Name: [Forminator Pro] Make fields read only
 * Script URI:  https://premium.wpmudev.org/
 * Description: This is a mu-plugin that makes the selected fields not editable/read only.
 * Author:      Ohidul Islam @ WPMU DEV
 * Version:     0.1
 * Author URI:  https://premium.wpmudev.org/
 *
 */

if( ! defined( 'ABSPATH' ) || ( defined( 'WP_CLI' ) && WP_CLI ) ) {
    return;
}

if( ! class_exists( 'MAKE_FIELDS_READ_ONLY' ) ) {
    
    class MAKE_FIELDS_READ_ONLY {

        public static $_instance = null;

        public static function instance() {
            if( is_null ( self::$_instance ) ) {
                self::$_instance = new MAKE_FIELDS_READ_ONLY;
            }

            return self::$_instance;
        }

        public function __construct() {
            add_action( 'wp_footer', array( $this, 'footer_scripts' ) );
        }

        public function footer_scripts() {
            ?>
                <script>
                    (function($) {

                        //
                        // Make fields read only
                        //
                        const readOnlyField = $(".read-only-field");
                        if( readOnlyField.length > 0 ) {
                            $.each( readOnlyField, function(i, dom) {
                                $(dom).find('input').attr('disabled', true);
                                $(dom).find('select').attr('disabled', true);
                            });
                        }

                        // Remove the disabled attributes when submitting the form
                        $('form').bind('submit', function () {
                            const formSelector = $('.forminator-custom-form');

                            $(formSelector).find('input').prop('disabled', false);
                            $(formSelector).find('select').prop('disabled', false);
                        });

                    })(jQuery)
                </script>
            <?php
        }
    }

    if( ! function_exists( 'MAKE_FIELDS_READ_ONLY' ) ) {
        function make_fields_read_only() {
            return MAKE_FIELDS_READ_ONLY::instance();
        }

        $make_fields_read_only = make_fields_read_only();
    }

}