[Forminator Pro] - Search country by first letter

forminator-search-country-first-letter.php

<?php
/**
 * Plugin Name: [Forminator Pro] Search country by first letter
 * Description: Search address country by first letter match.
 * Author: Prashant @ WPMUDEV
 * Author URI: https://premium.wpmudev.org
 * License: GPLv2 or later
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly.
}

add_action( 'wp_footer', 'wpmudev_search_first_character_select', 9999 );
function wpmudev_search_first_character_select() {
	global $post;
	if ( is_a( $post, 'WP_Post' ) && ! has_shortcode( $post->post_content, 'forminator_form' ) ) {
		return;
	}
	?>
	<script type="text/javascript">
	jQuery(document).ready(function($){
		setTimeout(function() {
			$('.forminator-custom-form').trigger('after.load.forminator');
		},500);
		
		$(document).on('after.load.forminator', function(e, form_id) {
			if ( 'forminator-module-2960' === e.target.id ) { // Please change 2960 to your form's ID.
				$select = $('select[name="address-1-country"]'); // Please change address-1 to your address field.
				$dropdownClass = 'forminator-custom-form-2960 forminator-dropdown--default'; // Please change 2960 to your form's ID.
				$select.FUIselect2( {
					'matcher' : matchCustom,
					'dropdownCssClass': $dropdownClass,
				});
				function matchCustom(params, data) {
					if ($.trim(params.term) === '') {
						return data;
					}
					
					if (typeof data.text === 'undefined') {
						return null;
					}
					
					if (data.text.toLowerCase().indexOf(params.term.toLowerCase()) === 0) {
						var modifiedData = $.extend({}, data, true);
						return modifiedData;
					}
					
					return null;
				}
			}
		});
	});
	</script>
	<?php
}