Ticket #45103: 45103.diff

src/wp-includes/class-wp-dependency.php

@@ -67 +67 @@
          */
         public $extra = array();
 
+        /**
+         * Translations textdomain registered to this handle.
+         *
+         * @since 5.0.0
+         * @var string
+         */
+        public $textdomain;
+
+        /**
+         * Translations path registered to this handle.
+         *
+         * @since 5.0.0
+         * @var string
+         */
+        public $translations_path;
+
         /**
          * Setup dependencies.
          *
@@ -94 +110 @@
                 return true;
         }
 
+        /**
+         * Register a translation domain.
+         *
+         * @since 5.0.0
+         *
+         * @param string $domain The translation domain to register.
+         * @param string $path   Optional. The full file path to the directory containing translation files.
+         *
+         * @return bool False if not a string, true otherwise.
+         */
+        public function set_translations( $domain, $path = null ) {
+                if ( !is_string($domain) )
+                        return false;
+                $this->textdomain = $domain;
+                $this->translations_path = $path;
+                return true;
+        }
 }

src/wp-includes/class.wp-scripts.php

@@ -324 +324 @@
                 if ( ! $src )
                         return true;
 
-                $tag = "{$cond_before}{$before_handle}<script type='text/javascript' src='$src'></script>\n{$after_handle}{$cond_after}";
+                $translations = '';
+                if ( $obj->text_domain ) {
+                        $translation_script = $this->print_inline_translations( $src, $obj->text_domain, get_locale(), $obj->translations_path, false );
+
+                        if ( $translation_script ) {
+                                $translations = sprintf( "<script type='text/javascript'>\n%s\n</script>\n", $translation_script );
+                        }
+                }
+
+                $tag = "{$cond_before}{$translations}{$before_handle}<script type='text/javascript' src='$src'></script>\n{$after_handle}{$cond_after}";
 
                 /**
                  * Filters the HTML script tag of an enqueued script.
@@ -400 +409 @@
                 return $output;
         }
 
+        /**
+         * Prints inline translations/
+         *
+         * @param string $src             The script source.
+         * @param string $domain          The translation domain.
+         * @param string $locale          The locale.
+         * @param string $registered_path Optional. The registered path for the translations, if any.
+         * @param bool   $echo            Optional. Whether to echo the script instead of just returning it.
+         *                                Default true.
+         *
+         * @return false|string False if no translations could be found. The script otherwise.
+         */
+        public function print_inline_translations( $src, $domain, $locale, $registered_path = null, $echo = true ) {
+                $relative          = false;
+                $languages_path    = WP_LANG_DIR;
+                $json_translations = false;
+
+                // First see if the script is from the content directory.
+                $content_url = content_url();
+                if ( strpos( $content_url, $src ) === 0 ) {
+                        // Make the src relative the specific plugin or theme.
+                        $relative = trim( substr( $src, strlen( $content_url ) ), '/' );
+                        $relative = explode( '/', $relative );
+
+                        $languages_path = WP_LANG_DIR . '/' . $relative[0];
+
+                        $relative = array_slice( $relative, 2 );
+                        $relative = implode( '/', $relative );
+                } else {
+                        // Otherwise check if it's from another WP directory.
+                        $site_url = site_url();
+                        if ( strpos( $site_url, $src ) === 0 ) {
+                                // Make the src relative to the WP root.
+                                $relative = substr( $src, strlen( $site_url ) );
+                                $relative = trim( $relative, '/' );
+                        }
+                }
+
+                // If the source is not from WP.
+                if ( $relative === false ) {
+                        return false;
+                }
+
+                $filename = $domain . '-' . $locale . '-' . md5( $relative ) . '.json';
+
+                // If a registered path was given check if a translation exists.
+                if ( $registered_path && file_exists( $registered_path . '/' . $filename ) ) {
+                        $json_translations = file_get_contents( $registered_path . '/' . $filename );
+                }
+
+                // Otherwise check if the translation exists in the languages path.
+                if ( ! $json_translations && file_exists( $languages_path . '/' . $filename ) ) {
+                        $json_translations = file_get_contents( $languages_path . '/' . $filename );
+                }
+
+                if ( ! $json_translations ) {
+                        return false;
+                }
+
+                $output = 'wp.i18n.setLocaleData( ' . $json_translations . ', ' . $domain . ' );';
+
+                if ( $echo ) {
+                        printf( "<script type='text/javascript'>\n%s\n</script>\n", $output );
+                }
+
+                return $output;
+        }
+
         /**
          * Localizes a script, only if the script has already been added.
          *
@@ -463 +540 @@
                 return parent::set_group( $handle, $recursion, $grp );
         }
 
+        /**
+         * Register a translation textdomain.
+         *
+         * @since 5.0.0
+         *
+         * @param string $handle Name of the script to register a translation domain to.
+         * @param string $domain The textdomain.
+         * @param string $path   Optional. The full file path to the directory containing translation files.
+         *
+         * @return bool True if the textdomain was registered, false if not.
+         */
+        public function set_translations( $handle, $domain, $path = null ) {
+                if ( ! isset( $this->registered[ $handle ] ) ) {
+                        return false;
+                }
+
+                return $this->registered[ $handle ]->set_translations( $domain, $path );
+        }
+
         /**
          * Determines script dependencies.
      *

src/wp-includes/functions.wp-scripts.php

@@ -192 +192 @@
         return $wp_scripts->localize( $handle, $object_name, $l10n );
 }
 
+/**
+ * Register translated strings for a script.
+ *
+ * Works only if the script has already been added.
+ *
+ * @see WP_Scripts::register_textdomain()
+ * @link https://core.trac.wordpress.org/ticket/45103
+ * @global WP_Scripts $wp_scripts The WP_Scripts object for printing scripts.
+ *
+ * @since 5.0.0
+ *
+ * @param string $handle Script handle the textdomain will be attached to.
+ * @param string $domain The textdomain.
+ * @param string $path   Optional. The full file path to the directory containing translation files.
+ *
+ * @return bool True if the textdomain was successfully localized, false otherwise.
+ */
+function wp_set_script_translations( $handle, $domain, $path = null ) {
+        global $wp_scripts;
+        if ( ! ( $wp_scripts instanceof WP_Scripts ) ) {
+                _wp_scripts_maybe_doing_it_wrong( __FUNCTION__ );
+                return false;
+        }
+
+        return $wp_scripts->set_translations( $handle, $domain, $path );
+}
+
 /**
  * Remove a registered script.
  *