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*/ private $previous_languages = array(); /** * Constructor. * * Setups filters and actions. * * @since 0.1 */ public function __construct() { $this->data_store = PLLWC_Data_Store::load( 'order_language' ); add_action( 'change_locale', array( $this, 'change_locale' ), 1 ); // Soon to load the plugin_locale filter. // Deactivate the email locale switch from WooCommerce. add_filter( 'woocommerce_email_setup_locale', '__return_false' ); add_filter( 'woocommerce_email_restore_locale', '__return_false' ); // Define the customer preferred language. add_action( 'woocommerce_created_customer', array( $this, 'created_customer' ), 5 ); // Before WC sends the notification. add_action( 'woocommerce_new_order', array( $this, 'new_order' ) ); // Manually sent order emails from order action metabox. add_action( 'woocommerce_before_resend_order_emails', array( $this, 'resend_order_email' ), 10, 2 ); add_action( 'woocommerce_after_resend_order_email', array( $this, 'after_email' ) ); // Translate site title. add_filter( 'woocommerce_email_format_string_replace', array( $this, 'format_string_replace' ), 10, 2 ); // Delays the the addition of other actions after WC_Emails init. add_action( 'woocommerce_email', array( $this, 'mailer_init' ) ); if ( is_user_logged_in() ) { // Sets the email language for previewed emails in the admin. Useful when displaying and sending the previewed emails. add_filter( 'woocommerce_prepare_email_for_preview', array( $this, 'set_previewed_email_language' ) ); } } /** * Sets the email language for previewed emails. * The goal is to translate the previewed email strings when rendering and sending the previewed email. * * @since 2.2 * * @param WC_Email $email The email object. Unused. * @return WC_Email */ public function set_previewed_email_language( $email ) { $language = PLL()->model->get_language( get_locale() ); if ( empty( $language ) ) { return $email; } $this->set_email_language( $language ); return $email; } /** * Setups actions related to automatically sent emails. * * This is delayed after the first call to WC()->mailer() to avoid setting up * emails sooner than expected. * * @since 1.6.3 * * @param WC_Emails $mailer The WooCommerce emails controller. * @return void */ public function mailer_init( $mailer ) { $this->user_emails_init(); $this->customer_emails_init(); /** * Filters if the emails sent to shop managers must be sent in their own language. * * @since 1.7 * * @param bool $enable True if emails are sent in shop manager language, false otherwise. */ if ( apply_filters( 'pllwc_enable_shop_manager_email_language', true ) ) { $this->shop_manager_emails_init( $mailer ); } } /** * Setups actions related to emails sent to a user. * * @since 1.7 * * @return void */ protected function user_emails_init() { /** * Filters the actions used to send translated emails to a user. * The actions in the list must pass a `WP_User` or user id as first parameter. * * @since 1.6 * * @param string[] $email_actions Array of actions used to send user emails. */ $actions = apply_filters( 'pllwc_user_email_actions', array( 'woocommerce_created_customer_notification', // Customer new account. 'woocommerce_reset_password_notification', // Reset password. ) ); foreach ( $actions as $action ) { add_action( $action, array( $this, 'before_user_email' ), 1 ); // Switch the language for the email. add_action( $action, array( $this, 'after_email' ), 999 ); // Switch the language back after the email has been sent. } } /** * Setups actions related to emails sent to a customer. * * @since 1.7 * * @return void */ protected function customer_emails_init() { /** * Filters the actions used to send translated customer emails related to an order. * The actions in the list must pass a `WC_Order` or order id as first parameter. * * @since 1.6 * * @param string[] $email_actions Array of actions used to send order emails. */ $actions = apply_filters( 'pllwc_order_email_actions', array( // Completed order. 'woocommerce_order_status_completed_notification', // Customer note. 'woocommerce_new_customer_note_notification', // On hold. 'woocommerce_order_status_failed_to_on-hold_notification', 'woocommerce_order_status_pending_to_on-hold_notification', 'woocommerce_order_status_cancelled_to_on-hold_notification', // Processing. 'woocommerce_order_status_cancelled_to_processing_notification', 'woocommerce_order_status_failed_to_processing_notification', 'woocommerce_order_status_on-hold_to_processing_notification', 'woocommerce_order_status_pending_to_processing_notification', // Refunded order. 'woocommerce_order_fully_refunded_notification', 'woocommerce_order_partially_refunded_notification', ) ); foreach ( $actions as $action ) { add_action( $action, array( $this, 'before_order_email' ), 1 ); // Switch the language for the email. add_action( $action, array( $this, 'after_email' ), 999 ); // Switch the language back after the email has been sent. } } /** * Setups actions related to emails sent to shop managers. * * @since 1.7 * * @param WC_Emails $mailer The WooCommerce emails controller. * @return void */ protected function shop_manager_emails_init( $mailer ) { if ( empty( $mailer->emails ) ) { return; } // Define email types and their corresponding actions. $email_config = array( 'WC_Email_Cancelled_Order' => array( 'actions' => array( // Cancelled order emails sent to shop managers. 'woocommerce_order_status_processing_to_cancelled_notification', 'woocommerce_order_status_on-hold_to_cancelled_notification', ), 'callback' => 'send_cancelled_order_email', ), 'WC_Email_Failed_Order' => array( 'actions' => array( // Failed order emails sent to shop managers. 'woocommerce_order_status_pending_to_failed_notification', 'woocommerce_order_status_on-hold_to_failed_notification', ), 'callback' => 'send_failed_order_email', ), 'WC_Email_New_Order' => array( 'actions' => array( // New order emails sent to shop managers. 'woocommerce_order_status_pending_to_processing_notification', 'woocommerce_order_status_pending_to_completed_notification', 'woocommerce_order_status_pending_to_on-hold_notification', 'woocommerce_order_status_failed_to_processing_notification', 'woocommerce_order_status_failed_to_completed_notification', 'woocommerce_order_status_failed_to_on-hold_notification', 'woocommerce_order_status_cancelled_to_processing_notification', 'woocommerce_order_status_cancelled_to_completed_notification', 'woocommerce_order_status_cancelled_to_on-hold_notification', ), 'callback' => 'send_new_order_email', ), ); // Process each email type. foreach ( $email_config as $email_class => $config ) { if ( ! isset( $mailer->emails[ $email_class ] ) ) { continue; } $email = $mailer->emails[ $email_class ]; foreach ( $config['actions'] as $action ) { remove_action( $action, array( $email, 'trigger' ) ); add_action( $action, array( $this, $config['callback'] ) ); } } } /** * Set the preferred customer language at customer creation. * Hooked to the action 'woocommerce_created_customer'. * * @since 0.1 * * @param int $user_id User ID. * @return void */ public function created_customer( $user_id ) { update_user_meta( $user_id, 'locale', get_locale() ); } /** * Maybe changes the customer language when he places a new order. * The chosen language is the currently browsed language. * Hooked to the action 'woocommerce_new_order'. * * @since 1.0 * * @param int $order_id Order ID. * @return void */ public function new_order( $order_id ) { if ( PLL() instanceof PLL_Frontend ) { $order = wc_get_order( $order_id ); if ( $order instanceof WC_Order ) { $user_id = $order->get_user_id(); if ( $user_id ) { $order_locale = $this->data_store->get_language( $order_id, 'locale' ); $user_locale = get_user_meta( $user_id, 'locale', true ); if ( ! empty( $order_locale ) && $order_locale !== $user_locale ) { update_user_meta( $user_id, 'locale', $order_locale ); } } } } } /** * Loads the WooCommerce text domain when the locale is switched. * Hooked to the action 'change_locale'. * * @since 1.0.2 * * @return void */ public function change_locale() { if ( is_locale_switched() ) { if ( isset( PLL()->filters ) ) { remove_filter( 'locale', array( PLL()->filters, 'get_locale' ) ); remove_filter( 'load_textdomain_mofile', array( PLL()->filters, 'load_textdomain_mofile' ) ); } add_filter( 'get_user_metadata', array( $this, 'filter_user_locale' ), 10, 3 ); } else { if ( PLL() instanceof PLL_Frontend && isset( PLL()->filters ) ) { add_filter( 'locale', array( PLL()->filters, 'get_locale' ) ); } remove_filter( 'get_user_metadata', array( $this, 'filter_user_locale' ) ); } if ( version_compare( $GLOBALS['wp_version'], '6.7-beta', '<' ) && method_exists( WC(), 'load_plugin_textdomain' ) ) { // Backward compatibility with WP < 6.7. WC()->load_plugin_textdomain(); } } /** * Sets the email language. * * @since 0.1 * * @param PLL_Language $language An instance of PLL_Language. * @return void */ public function set_email_language( $language ) { $this->previous_languages[] = array( 'switched' => switch_to_locale( $language->locale ), 'language' => empty( PLL()->curlang ) ? null : PLL()->curlang, ); PLL()->curlang = $language; PLLWC_Filter_WC_Pages::init(); if ( ! is_locale_switched() ) { PLL()->load_strings_translations( $language->get_locale() ); } /** * Fires just after the language of the email has been set. * * @since 0.1 */ do_action( 'pllwc_email_language' ); } /** * Sets the email language depending on the order language. * Hooked to order notifications. * * @since 0.1 * * @param int|array|WC_Order $order Order or order ID. * @return void */ public function before_order_email( $order ) { if ( is_numeric( $order ) ) { $order_id = $order; } elseif ( is_array( $order ) ) { $order_id = $order['order_id']; } elseif ( is_object( $order ) ) { $order_id = $order->get_id(); } if ( ! empty( $order_id ) ) { $lang = $this->data_store->get_language( $order_id ); $language = PLL()->model->get_language( $lang ); if ( $language ) { $this->set_email_language( $language ); } } } /** * Sets the email language depending on the user language. * Hooked to user notifications. * * @since 0.1 * * @param int|string $user User ID or user login. * @return void */ public function before_user_email( $user ) { if ( is_numeric( $user ) ) { $user_id = (int) $user; } else { $user = get_user_by( 'login', $user ); if ( $user instanceof WP_User ) { $user_id = $user->ID; } } if ( isset( $user_id ) ) { $lang = get_user_meta( $user_id, 'locale', true ); $lang = empty( $lang ) ? get_locale() : $lang; $language = PLL()->model->get_language( $lang ); if ( $language ) { $this->set_email_language( $language ); } } } /** * Restores the current language after the email has been sent. * Hooked to order and user notifications. * * @since 0.1 * * @return void */ public function after_email() { if ( empty( $this->previous_languages ) ) { return; } $previous = array_pop( $this->previous_languages ); if ( $previous['switched'] ) { restore_previous_locale(); } PLL()->curlang = $previous['language']; } /** * Translate the site title which is filled before the email is triggered. * Hooked to the filter 'woocommerce_email_format_string_replace'. * * @since 0.5 * * @param string[] $replace Array of strings to replace placeholders in emails. * @param WC_Email $email Instance of WC_Email. * @return string[] */ public function format_string_replace( $replace, $email ) { $replace['blogname'] = $email->get_blogname(); $replace['site-title'] = $email->get_blogname(); // Ensures the date format is used in the correct language for previewed emails. if ( $email->object instanceof WC_Order ) { $order_date = $email->object->get_date_created(); if ( ! empty( $order_date ) ) { $replace['order-date'] = wc_format_datetime( $order_date ); } } return $replace; } /** * Filters the user locale. Needed when sending the email from admin. * * @since 1.0.3 * * @param mixed $value The value get_metadata() should return. * @param int $user_id User ID. * @param string $meta_key Meta key. * @return mixed The meta value. */ public function filter_user_locale( $value, $user_id, $meta_key ) { return 'locale' === $meta_key ? get_locale() : $value; } /** * Get the user language by email. * * @nince 1.6 * * @param string $email Email. * @return PLL_Language The language of the user having this email, the default language if not found. */ protected function get_language_by_email( $email ) { $user = get_user_by( 'email', $email ); if ( $user instanceof WP_User ) { $locale = get_user_meta( $user->ID, 'locale', true ); $language = PLL()->model->get_language( $locale ); } if ( empty( $language ) ) { // In the eventuality that the user locale is not part of a Polylang language. $language = pll_default_language( 'OBJECT' ); } return $language; } /** * Sends order email in the user's language. * * @since 1.6 * * @param WC_Email $email WooCommerce Email Class. * @param int $order_id Order id. * @return void */ protected function send_order_email( $email, $order_id ) { if ( method_exists( $email, 'trigger' ) ) { $recipients = $this->get_recipients( $email ); remove_filter( 'get_user_metadata', array( $this, 'filter_user_locale' ) ); $emails_by_language = array(); foreach ( $recipients as $recipient ) { $language = $this->get_language_by_email( $recipient ); $emails_by_language[ $language->slug ]['language'] = $language; $emails_by_language[ $language->slug ]['recipients'][] = $recipient; } foreach ( $emails_by_language as $em ) { $this->set_email_language( $em['language'] ); $email->recipient = implode( ',', $em['recipients'] ); $email->trigger( $order_id ); $this->after_email(); } } } /** * Sends cancelled order email in the user's language. * * @since 1.6 * * @param int $order_id Order id. * @return void */ public function send_cancelled_order_email( $order_id ) { $this->send_order_email( WC()->mailer()->emails['WC_Email_Cancelled_Order'], $order_id ); } /** * Sends failed order email in the user's language. * * @since 1.6 * * @param int $order_id Order id. * @return void */ public function send_failed_order_email( $order_id ) { $this->send_order_email( WC()->mailer()->emails['WC_Email_Failed_Order'], $order_id ); } /** * Sends new order email in the user's language. * * @since 1.6 * * @param int $order_id Order id. * @return void */ public function send_new_order_email( $order_id ) { add_filter( 'woocommerce_new_order_email_allows_resend', '__return_true' ); $this->send_order_email( WC()->mailer()->emails['WC_Email_New_Order'], $order_id ); } /** * Handles emails sent from the order actions metabox. * * @since 1.6 * * @param WC_Order $order Order. * @param string $action Order action. * @return void */ public function resend_order_email( $order, $action ) { if ( 'new_order' === $action ) { $this->send_new_order_email( $order->get_id() ); // Send email in the user's language. add_filter( 'woocommerce_email_enabled_new_order', '__return_false' ); // Prevents WC to resend the email. } else { $this->before_order_email( $order ); // Other emails are sent to the customer in the order's language. } } /** * Returns an array of recipients for the given email type. * * @since 1.8 * * @param WC_Email $email Email object. * @return string[] Array of recipients for the email. */ protected function get_recipients( $email ) { $recipients = $email->get_option( 'recipient', get_option( 'admin_email' ) ); $recipients = explode( ',', $recipients ); $recipients = array_map( 'trim', $recipients ); return array_filter( $recipients ); } }