Viewing file:  wpml-config.php (7.05 KB) -rw-r--r--
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<?php
/**
* Reads and interprets the file wpml-config.xml
* See http://wpml.org/documentation/support/language-configuration-files/
* The language switcher configuration is not interpreted
*
* @since 1.0
*/
class PLL_WPML_Config {
static protected $instance; // For singleton
protected $xmls, $options;
/**
* Constructor
*
* @since 1.0
*/
public function __construct() {
if ( extension_loaded( 'simplexml' ) ) {
$this->init();
}
}
/**
* Access to the single instance of the class
*
* @since 1.7
*
* @return object
*/
static public function instance() {
if ( empty( self::$instance ) ) {
self::$instance = new self();
}
return self::$instance;
}
/**
* Finds the wpml-config.xml files to parse and setup filters
*
* @since 1.0
*/
public function init() {
$this->xmls = array();
// Theme
if ( file_exists( $file = ( $template = get_template_directory() ) . '/wpml-config.xml' ) && false !== $xml = simplexml_load_file( $file ) ) {
$this->xmls[ get_template() ] = $xml;
}
// Child theme
if ( ( $stylesheet = get_stylesheet_directory() ) !== $template && file_exists( $file = $stylesheet . '/wpml-config.xml' ) && false !== $xml = simplexml_load_file( $file ) ) {
$this->xmls[ get_stylesheet() ] = $xml;
}
// Plugins
// 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
$plugins = ( is_multisite() && $sitewide_plugins = get_site_option( 'active_sitewide_plugins' ) ) && is_array( $sitewide_plugins ) ? array_keys( $sitewide_plugins ) : array();
$plugins = array_merge( $plugins, get_option( 'active_plugins' ) );
foreach ( $plugins as $plugin ) {
if ( file_exists( $file = WP_PLUGIN_DIR . '/' . dirname( $plugin ) . '/wpml-config.xml' ) && false !== $xml = simplexml_load_file( $file ) ) {
$this->xmls[ dirname( $plugin ) ] = $xml;
}
}
// Custom
if ( file_exists( $file = PLL_LOCAL_DIR . '/wpml-config.xml' ) && false !== $xml = simplexml_load_file( $file ) ) {
$this->xmls['Polylang'] = $xml;
}
if ( ! empty( $this->xmls ) ) {
add_filter( 'pll_copy_post_metas', array( $this, 'copy_post_metas' ), 10, 2 );
add_filter( 'pll_get_post_types', array( $this, 'translate_types' ), 10, 2 );
add_filter( 'pll_get_taxonomies', array( $this, 'translate_taxonomies' ), 10, 2 );
foreach ( $this->xmls as $context => $xml ) {
foreach ( $xml->xpath( 'admin-texts/key' ) as $key ) {
$attributes = $key->attributes();
$name = (string) $attributes['name'];
if ( PLL() instanceof PLL_Frontend ) {
$this->options[ $name ] = $key;
add_filter( 'option_' . $name, array( $this, 'translate_strings' ) );
} else {
$this->register_string_recursive( $context, get_option( $name ), $key );
}
}
}
}
}
/**
* Adds custom fields to the list of metas to copy when creating a new translation
*
* @since 1.0
*
* @param array $metas the list of custom fields to copy or synchronize
* @param bool $sync true for sync, false for copy
* @return array the list of custom fields to copy or synchronize
*/
public function copy_post_metas( $metas, $sync ) {
foreach ( $this->xmls as $xml ) {
foreach ( $xml->xpath( 'custom-fields/custom-field' ) as $cf ) {
$attributes = $cf->attributes();
if ( 'copy' == $attributes['action'] || ( ! $sync && 'translate' == $attributes['action'] ) ) {
$metas[] = (string) $cf;
} else {
$metas = array_diff( $metas, array( (string) $cf ) );
}
}
}
return $metas;
}
/**
* Language and translation management for custom post types
*
* @since 1.0
*
* @param array $types list of post type names for which Polylang manages language and translations
* @param bool $hide true when displaying the list in Polylang settings
* @return array list of post type names for which Polylang manages language and translations
*/
public function translate_types( $types, $hide ) {
foreach ( $this->xmls as $xml ) {
foreach ( $xml->xpath( 'custom-types/custom-type' ) as $pt ) {
$attributes = $pt->attributes();
if ( 1 == $attributes['translate'] && ! $hide ) {
$types[ (string) $pt ] = (string) $pt;
} else {
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
}
}
}
return $types;
}
/**
* Language and translation management for custom taxonomies
*
* @since 1.0
*
* @param array $taxonomies list of taxonomy names for which Polylang manages language and translations
* @param bool $hide true when displaying the list in Polylang settings
* @return array list of taxonomy names for which Polylang manages language and translations
*/
public function translate_taxonomies( $taxonomies, $hide ) {
foreach ( $this->xmls as $xml ) {
foreach ( $xml->xpath( 'taxonomies/taxonomy' ) as $tax ) {
$attributes = $tax->attributes();
if ( 1 == $attributes['translate'] && ! $hide ) {
$taxonomies[ (string) $tax ] = (string) $tax;
} else {
unset( $taxonomies[ (string) $tax ] ); // the theme/plugin author decided what to do with the taxonomy so don't allow the user to change this
}
}
}
return $taxonomies;
}
/**
* Translates the strings for an option
*
* @since 1.0
*
* @param array|string either a string to translate or a list of strings to translate
* @return array|string translated string(s)
*/
public function translate_strings( $value ) {
$option = substr( current_filter(), 7 );
return $this->translate_strings_recursive( $value, $this->options[ $option ] );
}
/**
* Recursively registers strings for a serialized option
*
* @since 1.0
*
* @param string $context the group in which the strings will be registered
* @param array $options
* @param object $key XML node
*/
protected function register_string_recursive( $context, $options, $key ) {
$children = $key->children();
if ( count( $children ) ) {
foreach ( $children as $child ) {
$attributes = $child->attributes();
$name = (string) $attributes['name'];
if ( isset( $options[ $name ] ) ) {
$this->register_string_recursive( $context, $options[ $name ], $child );
}
}
} else {
$attributes = $key->attributes();
pll_register_string( (string) $attributes['name'], $options, $context, true ); // Multiline as in WPML
}
}
/**
* Recursively translates strings for a serialized option
*
* @since 1.0
*
* @param array|string $values either a string to translate or a list of strings to translate
* @param object $key XML node
* @return array|string translated string(s)
*/
protected function translate_strings_recursive( $values, $key ) {
$children = $key->children();
if ( count( $children ) ) {
foreach ( $children as $child ) {
$attributes = $child->attributes();
$name = (string) $attributes['name'];
if ( isset( $values[ $name ] ) ) {
$values[ $name ] = $this->translate_strings_recursive( $values[ $name ], $child );
}
}
} else {
$values = pll__( $values );
}
return $values;
}
}
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