Viewing file:  wpml-compat.php (3.98 KB) -rw-r--r--
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<?php
/**
* WPML Compatibility class
* Defines some WPML constants
* Registers strings in a persistent way as done by WPML
*
* @since 1.0.2
*/
class PLL_WPML_Compat {
static protected $instance; // For singleton
static protected $strings; // Used for cache
public $api;
/**
* Constructor
*
* @since 1.0.2
*/
protected function __construct() {
// Load the WPML API
require_once PLL_MODULES_INC . '/wpml/wpml-legacy-api.php';
$this->api = new PLL_WPML_API();
self::$strings = get_option( 'polylang_wpml_strings', array() );
add_action( 'pll_language_defined', array( $this, 'define_constants' ) );
add_filter( 'pll_get_strings', array( $this, 'get_strings' ) );
}
/**
* Access to the single instance of the class
*
* @since 1.7
*
* @return object
*/
static public function instance() {
if ( empty( self::$instance ) ) {
self::$instance = new self();
}
return self::$instance;
}
/**
* Defines two WPML constants once the language has been defined
* The compatibility with WPML is not perfect on admin side as the constants are defined
* in 'setup_theme' by Polylang ( based on user info ) and 'plugins_loaded' by WPML ( based on cookie )
*
* @since 0.9.5
*/
public function define_constants() {
if ( ! empty( PLL()->curlang ) ) {
if ( ! defined( 'ICL_LANGUAGE_CODE' ) ) {
define( 'ICL_LANGUAGE_CODE', PLL()->curlang->slug );
}
if ( ! defined( 'ICL_LANGUAGE_NAME' ) ) {
define( 'ICL_LANGUAGE_NAME', PLL()->curlang->name );
}
} elseif ( ! PLL() instanceof PLL_Frontend ) {
if ( ! defined( 'ICL_LANGUAGE_CODE' ) ) {
define( 'ICL_LANGUAGE_CODE', 'all' );
}
if ( ! defined( 'ICL_LANGUAGE_NAME' ) ) {
define( 'ICL_LANGUAGE_NAME', '' );
}
}
}
/**
* Unlike pll_register_string, icl_register_string stores the string in database
* so we need to do the same as some plugins or themes may expect this
* we use a serialized option to do this
*
* @since 1.0.2
*
* @param string $context the group in which the string is registered, defaults to 'polylang'
* @param string $name a unique name for the string
* @param string $string the string to register
*/
public function register_string( $context, $name, $string ) {
// Registers the string if it does not exist yet (multiline as in WPML)
$to_register = array( 'context' => $context, 'name' => $name, 'string' => $string, 'multiline' => true, 'icl' => true );
if ( ! in_array( $to_register, self::$strings ) && $to_register['string'] ) {
self::$strings[] = $to_register;
update_option( 'polylang_wpml_strings', self::$strings );
}
}
/**
* Removes a string from the registered strings list
*
* @since 1.0.2
*
* @param string $context the group in which the string is registered, defaults to 'polylang'
* @param string $name a unique name for the string
*/
public function unregister_string( $context, $name ) {
foreach ( self::$strings as $key => $string ) {
if ( $string['context'] == $context && $string['name'] == $name ) {
unset( self::$strings[ $key ] );
update_option( 'polylang_wpml_strings', self::$strings );
}
}
}
/**
* Adds strings registered by icl_register_string to those registered by pll_register_string
*
* @since 1.0.2
*
* @param array $strings existing registered strings
* @return array registered strings with added strings through WPML API
*/
public function get_strings( $strings ) {
return empty( self::$strings ) ? $strings : array_merge( $strings, self::$strings );
}
/**
* Get a registered string by its context and name
*
* @since 2.0
*
* @param string $context the group in which the string is registered
* @param string $name a unique name for the string
* @return bool|string the registered string, false if none was found
*/
public function get_string_by_context_and_name( $context, $name ) {
foreach ( self::$strings as $string ) {
if ( $string['context'] == $context && $string['name'] == $name ) {
return $string['string'];
}
}
return false;
}
}
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