Ticket #1692: inject-translated-meta-keys.diff

class-plugin-directory.php

@@ -10 +10 @@
 class Plugin_Directory {
 
         /**
+         * Local cache for translated content injected into meta
+         */
+        private $i18n_meta = array();
+
+        /**
          * Fetch the instance of the Plugin_Directory class.
          */
         public static function instance() {
@@ -226 +231 @@
                         require_once( __DIR__ . '/libs/site-search/jetpack-search.php' );
                         \Jetpack_Search::instance();
                 }
+
+                // When Jetpack syncs, we want to add filters to inject additional metadata for Jetpack, so it syncs for ElasticSearch indexing.
+                add_action( 'shutdown', array( $this, 'append_meta_for_jetpack' ), 8 );
+
         }
 
         /**
@@ -453 +462 @@
                 if ( is_null( $section ) ) {
                         return $content;
                 }
+
                 return Plugin_i18n::instance()->translate( $section, $content );
         }
 
@@ -480 +490 @@
         }
 
         /**
+         * Shutdown action that will add a filter to inject additional postmeta containing translated content if Jetpack is syncing.
+         *
+         */
+        public function append_meta_for_jetpack() {
+                // TEMP: only do this for low numbered plugin IDs, till we're sure it works.
+                if ( get_post()->ID > 200 )
+                        return;
+
+                // Guess if a Jetpack sync is scheduled to run. It runs during shutdown at a lower priority than this action, so we can get in first.
+                // Fetching the extra meta to inject is expensive, so we only want to do this if a sync is likely.
+                if ( class_exists( 'Jetpack' ) && !empty(\Jetpack::init()->sync->sync) ) {
+                        add_filter( 'wporg_plugins_custom_meta_fields', array( $this, 'filter_post_meta_i18n' ), 10, 2 );
+                }
+
+        }
+
+        /**
+         * Filter for wporg_plugins_custom_meta_fields to inject translated content for ES.
+         *
+         * @param array $meta
+         * @param int $post_id
+         * @return array
+         */
+        public function filter_post_meta_i18n( $meta, $post_id ) {
+                // Prevent recursion and repeat runs
+                remove_filter( 'wporg_plugins_custom_meta_fields', array( $this, 'filter_post_meta_i18n' ) );
+
+                if ( get_post()->ID == $post_id ) {
+                        $locales_to_sync = array( 'fr_fr', 'es_es' ); // This should probably be a list of available translations for the plugin readme.
+
+                        global $locale;
+                        $_locale = $locale;
+                        foreach ( $locales_to_sync as $locale ) {
+                                $this->i18n_meta[$post_id]['post_title_'.$locale] = $this->translate_post_title( get_the_title(), $post_id );
+                                $this->i18n_meta[$post_id]['post_excerpt_'.$locale] = $this->translate_post_excerpt( get_the_excerpt() );
+
+                                // Split up the content to translate it in sections
+                                $content = '';
+                                $sections = $this->split_post_content_into_pages( get_the_content() );
+                                foreach ( $sections as $section => $section_content )
+                                        $content .= $this->translate_post_content( $section_content, $section );
+                                $this->i18n_meta[$post_id]['post_content_'.$locale] = $content;
+
+                        }
+
+                        $locale = $_locale;
+
+                        $meta = array_merge( $meta, array_keys( $this->i18n_meta[$post_id] ) );
+                }
+
+                add_filter( 'wporg_plugins_custom_meta_fields', array( $this, 'filter_post_meta_i18n'), 10, 2 );
+                return $meta;
+        }
+
+
+        /**
          * Filter for rest_api_allowed_post_types to enable JP syncing of the CPT
          *
          * @param array $allowed_post_types
@@ -576 +642 @@
                                 }
 
                                 break;
+                        default:
+                                if ( isset( $this->i18n_meta[ $object_id ][ $meta_key ] ) )
+                                        return array( $this->i18n_meta[ $object_id ][ $meta_key ] );
+                                break;
                 }
                 return $value;
         }