271 lines
8.6 KiB
PHP
271 lines
8.6 KiB
PHP
<?php
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/**
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* Reads and interprets the file wpml-config.xml
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* See http://wpml.org/documentation/support/language-configuration-files/
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* The language switcher configuration is not interpreted
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*
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* @since 1.0
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*/
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class PLL_WPML_Config {
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static protected $instance; // For singleton
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protected $xmls, $options;
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/**
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* Constructor
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*
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* @since 1.0
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*/
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public function __construct() {
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if ( extension_loaded( 'simplexml' ) ) {
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$this->init();
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}
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}
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/**
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* Access to the single instance of the class
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*
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* @since 1.7
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*
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* @return object
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*/
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static public function instance() {
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if ( empty( self::$instance ) ) {
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self::$instance = new self();
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}
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return self::$instance;
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}
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/**
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* Finds the wpml-config.xml files to parse and setup filters
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*
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* @since 1.0
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*/
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public function init() {
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$this->xmls = array();
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// Plugins
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// Don't forget sitewide active plugins thanks to Reactorshop http://wordpress.org/support/topic/polylang-and-yoast-seo-plugin/page/2?replies=38#post-4801829
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$plugins = ( is_multisite() && $sitewide_plugins = get_site_option( 'active_sitewide_plugins' ) ) && is_array( $sitewide_plugins ) ? array_keys( $sitewide_plugins ) : array();
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$plugins = array_merge( $plugins, get_option( 'active_plugins', array() ) );
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foreach ( $plugins as $plugin ) {
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if ( file_exists( $file = WP_PLUGIN_DIR . '/' . dirname( $plugin ) . '/wpml-config.xml' ) && false !== $xml = simplexml_load_file( $file ) ) {
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$this->xmls[ dirname( $plugin ) ] = $xml;
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}
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}
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// Theme
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if ( file_exists( $file = ( $template = get_template_directory() ) . '/wpml-config.xml' ) && false !== $xml = simplexml_load_file( $file ) ) {
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$this->xmls[ get_template() ] = $xml;
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}
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// Child theme
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if ( ( $stylesheet = get_stylesheet_directory() ) !== $template && file_exists( $file = $stylesheet . '/wpml-config.xml' ) && false !== $xml = simplexml_load_file( $file ) ) {
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$this->xmls[ get_stylesheet() ] = $xml;
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}
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// Custom
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if ( file_exists( $file = PLL_LOCAL_DIR . '/wpml-config.xml' ) && false !== $xml = simplexml_load_file( $file ) ) {
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$this->xmls['Polylang'] = $xml;
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}
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if ( ! empty( $this->xmls ) ) {
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add_filter( 'pll_copy_post_metas', array( $this, 'copy_post_metas' ), 10, 2 );
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add_filter( 'pll_get_post_types', array( $this, 'translate_types' ), 10, 2 );
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add_filter( 'pll_get_taxonomies', array( $this, 'translate_taxonomies' ), 10, 2 );
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foreach ( $this->xmls as $context => $xml ) {
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foreach ( $xml->xpath( 'admin-texts/key' ) as $key ) {
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$attributes = $key->attributes();
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$name = (string) $attributes['name'];
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if ( PLL() instanceof PLL_Frontend ) {
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$this->options[ $name ] = $key;
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add_filter( 'option_' . $name, array( $this, 'translate_strings' ) );
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} else {
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$this->register_string_recursive( $context, get_option( $name ), $key );
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}
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}
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}
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}
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}
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/**
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* Adds custom fields to the list of metas to copy when creating a new translation
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*
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* @since 1.0
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*
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* @param array $metas the list of custom fields to copy or synchronize
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* @param bool $sync true for sync, false for copy
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* @return array the list of custom fields to copy or synchronize
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*/
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public function copy_post_metas( $metas, $sync ) {
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foreach ( $this->xmls as $xml ) {
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foreach ( $xml->xpath( 'custom-fields/custom-field' ) as $cf ) {
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$attributes = $cf->attributes();
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if ( 'copy' == $attributes['action'] || ( ! $sync && in_array( $attributes['action'], array( 'translate', 'copy-once' ) ) ) ) {
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$metas[] = (string) $cf;
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} else {
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$metas = array_diff( $metas, array( (string) $cf ) );
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}
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}
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}
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return $metas;
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}
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/**
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* Language and translation management for custom post types
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*
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* @since 1.0
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*
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* @param array $types list of post type names for which Polylang manages language and translations
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* @param bool $hide true when displaying the list in Polylang settings
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* @return array list of post type names for which Polylang manages language and translations
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*/
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public function translate_types( $types, $hide ) {
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foreach ( $this->xmls as $xml ) {
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foreach ( $xml->xpath( 'custom-types/custom-type' ) as $pt ) {
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$attributes = $pt->attributes();
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if ( 1 == $attributes['translate'] && ! $hide ) {
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$types[ (string) $pt ] = (string) $pt;
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} else {
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unset( $types[ (string) $pt ] ); // The theme/plugin author decided what to do with the post type so don't allow the user to change this
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}
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}
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}
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return $types;
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}
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/**
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* Language and translation management for custom taxonomies
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*
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* @since 1.0
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*
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* @param array $taxonomies list of taxonomy names for which Polylang manages language and translations
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* @param bool $hide true when displaying the list in Polylang settings
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* @return array list of taxonomy names for which Polylang manages language and translations
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*/
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public function translate_taxonomies( $taxonomies, $hide ) {
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foreach ( $this->xmls as $xml ) {
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foreach ( $xml->xpath( 'taxonomies/taxonomy' ) as $tax ) {
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$attributes = $tax->attributes();
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if ( 1 == $attributes['translate'] && ! $hide ) {
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$taxonomies[ (string) $tax ] = (string) $tax;
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} else {
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unset( $taxonomies[ (string) $tax ] ); // the theme/plugin author decided what to do with the taxonomy so don't allow the user to change this
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}
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}
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}
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return $taxonomies;
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}
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/**
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* Translates the strings for an option
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*
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* @since 1.0
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*
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* @param array|string $value Either a string to translate or a list of strings to translate
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* @return array|string translated string(s)
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*/
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public function translate_strings( $value ) {
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$option = substr( current_filter(), 7 );
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return $this->translate_strings_recursive( $value, $this->options[ $option ] );
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}
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/**
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* Recursively registers strings for a serialized option
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*
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* @since 1.0
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*
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* @param string $context the group in which the strings will be registered
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* @param array $options
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* @param object $key XML node
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*/
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protected function register_string_recursive( $context, $options, $key ) {
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$children = $key->children();
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if ( count( $children ) ) {
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foreach ( $children as $child ) {
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$attributes = $child->attributes();
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$name = (string) $attributes['name'];
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if ( '*' === $name && is_array( $options ) ) {
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foreach ( $options as $n => $option ) {
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$this->register_wildcard_options_recursive( $context, $option, $n );
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}
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} elseif ( isset( $options[ $name ] ) ) {
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$this->register_string_recursive( $context, $options[ $name ], $child );
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}
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}
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} else {
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$attributes = $key->attributes();
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pll_register_string( (string) $attributes['name'], $options, $context, true ); // Multiline as in WPML
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}
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}
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/**
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* Recursively registers strings with a wildcard
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*
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* @since 2.1
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*
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* @param string $context the group in which the strings will be registered
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* @param array $options
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* @param string $name Option name
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*/
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protected function register_wildcard_options_recursive( $context, $options, $name ) {
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if ( is_array( $options ) ) {
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foreach ( $options as $n => $option ) {
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$this->register_wildcard_options_recursive( $context, $option, $n );
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}
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} else {
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pll_register_string( $name, $options, $context );
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}
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}
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/**
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* Recursively translates strings for a serialized option
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*
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* @since 1.0
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*
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* @param array|string $values either a string to translate or a list of strings to translate
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* @param object $key XML node
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* @return array|string translated string(s)
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*/
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protected function translate_strings_recursive( $values, $key ) {
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$children = $key->children();
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if ( count( $children ) ) {
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foreach ( $children as $child ) {
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$attributes = $child->attributes();
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$name = (string) $attributes['name'];
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if ( '*' === $name && is_array( $values ) ) {
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foreach ( $values as $n => $v ) {
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$values[ $n ] = $this->translate_wildcard_options_recursive( $v, $n );
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}
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} elseif ( isset( $values[ $name ] ) ) {
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$values[ $name ] = $this->translate_strings_recursive( $values[ $name ], $child );
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}
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}
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} else {
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$values = pll__( $values );
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}
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return $values;
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}
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/**
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* Recursively translates strings registered by a wildcard
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*
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* @since 2.1
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*
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* @param array|string $options Either a string to translate or a list of strings to translate
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* @param string $name Option name
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* @return array|string Translated string(s)
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*/
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protected function translate_wildcard_options_recursive( $options, $name ) {
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if ( is_array( $options ) ) {
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foreach ( $options as $n => $option ) {
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$options[ $n ] = $this->translate_wildcard_options_recursive( $option, $n );
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}
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} else {
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$options = pll__( $options );
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}
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return $options;
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}
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}
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