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class WPML_Compatibility_Gutenberg implements IWPML_Action {
* We need to load the filter after `wpml_before_init` where ST loads the blocking filter
* and before `plugins_loaded` (priority 10) where Gutenberg loads the text domain.
const PRIORITY_ON_PLUGINS_LOADED = 5;
/** @var WPML_PHP_Functions $php_functions */
public function __construct( WPML_PHP_Functions $php_functions = null ) {
$this->php_functions = $php_functions;
public function add_hooks() {
add_action( 'plugins_loaded', array( $this, 'load_textdomain_filter' ), self::PRIORITY_ON_PLUGINS_LOADED );
public function load_textdomain_filter() {
if ( $this->php_functions->defined( 'WPML_ST_VERSION' )
&& $this->php_functions->function_exists( 'gutenberg_load_plugin_textdomain' )
add_filter( 'override_load_textdomain', array( $this, 'unblock_gutenberg_domain' ), PHP_INT_MAX, 2 );
public function unblock_gutenberg_domain( $override, $domain ) {
if ( 'gutenberg' === $domain ) {