[Forminator] - Support multiple currencies in the currency field.

forminator-support-multi-currencies-in-currence-field.php

<?php
/**
 * Plugin Name: [Forminator] - Support multiple currencies in the currency field.
 * Description: [Forminator] - Support multiple currencies in the currency field.
 * Jira: SLS-303
 * Author: Thobk @ WPMUDEV
 * Author URI: https://premium.wpmudev.org
 * License: GPLv2 or later
 */
if ( ! defined( 'ABSPATH' ) ) {
	exit;
} elseif ( defined( 'WP_CLI' ) && WP_CLI ) {
	return;
}

add_action( 'after_setup_theme', 'wpmudev_forminator_support_multi_currencies_in_currence_field_func', 100 );

function wpmudev_forminator_support_multi_currencies_in_currence_field_func() {
	if ( defined('FORMINATOR_PRO') && class_exists( 'Forminator' )  ) {

		class WPMUDEV_FM_MU_Currencies{
			public $include_form_ids = [];
			public $exclude_form_ids = [];//enter list exclude form ids, e.g: [234,456]

			private $default_currency;
			private $current_form_id;

			public function __construct(){
				add_filter( 'forminator_field_markup', array( $this, 'custom_currency_field' ), 10, 3 );
				add_action( 'wp_enqueue_scripts', array( $this, 'custom_assets' ) );
				add_action( 'wp_footer', array( $this, 'custom_script' ), 21 );
				add_filter( 'forminator_paypal_properties', array( $this, 'save_default_currency' ), 9999 );
				add_filter( 'forminator_custom_form_mail_admin_message', array( $this, 'wpmudev_show_formatted_currency' ), 10, 5 );
			}

			public function wpmudev_show_formatted_currency( $message, $custom_form, $data, $entry, $cls ) {
				if( ! empty( $this->include_form_ids ) ){
					if( in_array( $custom_form->id, $this->include_form_ids ) ){
						$message = str_replace( 'USD', $data['wpmudev-currency'], $message ) ;
					}
				}

				return $message;
			}

			public function custom_assets(){
				wp_enqueue_style( 'select2', 'https://cdn.jsdelivr.net/npm/select2@4.1.0-beta.1/dist/css/select2.min.css', array('forminator-utilities') );
				$data = '
				.forminator-suffix.wpmudev-currency-box, .forminator-suffix.wpmudev-currency-box select{
					width:65px;
				}
				.forminator-suffix.wpmudev-currency-box{
					padding:0!important;
					right:5px!important;
					margin-top:-2px;
				}
				';
				wp_add_inline_style( 'select2', $data );
			}

			public function enabled_on_this_form( $form_id ){
				static $checked_forms = [];
				if( ! isset( $checked_forms[ $form_id ] ) ){
					if( ! empty( $this->include_form_ids ) ){
						if( ! in_array( $form_id, $this->include_form_ids ) ){
							$checked_forms[ $form_id ] = false;
						}
					}elseif( ! empty( $this->exclude_form_ids ) && in_array( $form_id, $this->exclude_form_ids ) ){
						$checked_forms[ $form_id ] = false;
					}

					$checked_forms[ $form_id ] = isset( $checked_forms[ $form_id ] ) ? $checked_forms[ $form_id ] : true;
				}

				return $checked_forms[ $form_id ];
			}

			public function custom_currency_field( $html, $field, $custom_form ){
				if( empty( $field['type'] ) || 'currency' !== $field['type'] || ! $this->enabled_on_this_form( $custom_form->model->id ) ){
					return $html;
				}

				$paypal_list_currencies = forminator_pp_currency_list();

				$mul_currencies_field = '<div class="forminator-suffix wpmudev-currency-box"><select id="wpmudev-currency-field" name="wpmudev-currency">';
					foreach( $paypal_list_currencies as $code => $name ){
						$mul_currencies_field .= sprintf('<option value="%s" %s>%s</option>', $code, selected( $field['currency'], $code, false ), $code );
					}
				$mul_currencies_field .='</select></div>';
				$html = str_replace(sprintf('<span class="forminator-suffix">%s</span>', $field['currency'] ), $mul_currencies_field, $html );
				return $html;
			}

			public function save_default_currency( $properties ){
				if( isset( $properties['currency'] ) ){
					$this->default_currency = $properties['currency'];
				}
				return $properties;
			}

			public function custom_script(){
				if( ! $this->default_currency ){
					return;
				}
				?>
				<script>
					(function($){
						$(function(){
							if (typeof ($.fn.forminatorLoader) === 'undefined') {
								// nothing to do here
							} else {
								// support ajax form
								$(document).on('after.load.forminator', function(e, _form_id){
									let _form = $('#forminator-module-'+ _form_id),
											_curreny_field = _form.find('#wpmudev-currency-field'),
											_default_currency = '<?php echo esc_js( $this->default_currency );?>',
											_paypal_script = $("script[src^='https://www.paypal.com/sdk/js']"),
											_paypal_button = _form.find('#paypal-button-container-'+ _form_id );
									if( _curreny_field.length && _paypal_script.length && _paypal_button.length ){
										// select field
										wpmudev_autocomplete_select_field( _curreny_field );

										_curreny_field.on('change', function(){
											let _new_currency = $(this).val(),
													_paypal_form = _form.data('forminatorFrontPayPal');
											if( _paypal_form && _new_currency !== _default_currency ){
												_paypal_script.attr('src', _paypal_script.attr('src').replace('currency='+ _default_currency, 'currency='+ _new_currency ) );
												_default_currency = _new_currency;
												// empty button
												_paypal_button.empty();
												// load button again
												_paypal_form.render_paypal_button();
											}
										});

									}
								});

								function wpmudev_autocomplete_select_field( _curreny_field ){
									_curreny_field.FUIselect2();									
								}
							}
						});
					})(window.jQuery)
				</script>
				<?php
			}

		}

		$run = new WPMUDEV_FM_MU_Currencies;
	}
}