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<?php |
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|
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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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protected static $instance; // For singleton |
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protected $xmls, $options; |
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|
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/** |
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* Constructor |
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* |
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* @since 1.0 |
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*/ |
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public function __construct() { |
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if ( extension_loaded( 'simplexml' ) ) { |
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$this->init(); |
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} |
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} |
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|
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/** |
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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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public static 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::$instance; |
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} |
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|
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/** |
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* Finds the wpml-config.xml files to parse and setup filters |
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* |
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* @since 1.0 |
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*/ |
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public function init() { |
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$this->xmls = array(); |
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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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/** |
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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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/** |
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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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/** |
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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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/** |
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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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/** |
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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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/** |
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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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/** |
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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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/** |
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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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|
