Merge "Type hint against LinkTarget in WatchedItemStore"
[lhc/web/wiklou.git] / includes / specialpage / ChangesListSpecialPage.php
index a9debb3..f9b4542 100644 (file)
@@ -824,9 +824,27 @@ abstract class ChangesListSpecialPage extends SpecialPage {
                }
        }
 
+       /**
+        * Get essential data about getRcFiltersConfigVars() for change detection.
+        *
+        * @internal For use by Resources.php only.
+        * @see ResourceLoaderModule::getDefinitionSummary() and ResourceLoaderModule::getVersionHash()
+        * @param ResourceLoaderContext $context
+        * @return array
+        */
+       public static function getRcFiltersConfigSummary( ResourceLoaderContext $context ) {
+               return [
+                       // Reduce version computation by avoiding Message parsing
+                       'RCFiltersChangeTags' => self::getChangeTagListSummary( $context ),
+                       'StructuredChangeFiltersEditWatchlistUrl' =>
+                               SpecialPage::getTitleFor( 'EditWatchlist' )->getLocalURL()
+               ];
+       }
+
        /**
         * Get config vars to export with the mediawiki.rcfilters.filters.ui module.
         *
+        * @internal For use by Resources.php only.
         * @param ResourceLoaderContext $context
         * @return array
         */
@@ -839,70 +857,105 @@ abstract class ChangesListSpecialPage extends SpecialPage {
        }
 
        /**
-        * Fetch the change tags list for the front end
+        * Get (cheap to compute) information about change tags.
+        *
+        * Returns an array of associative arrays with information about each tag:
+        * - name: Tag name (string)
+        * - labelMsg: Short description message (Message object)
+        * - descriptionMsg: Long description message (Message object)
+        * - cssClass: CSS class to use for RC entries with this tag
+        * - hits: Number of RC entries that have this tag
         *
         * @param ResourceLoaderContext $context
-        * @return array Tag data
+        * @return array[] Information about each tag
         */
-       protected static function getChangeTagList( ResourceLoaderContext $context ) {
-               $cache = MediaWikiServices::getInstance()->getMainWANObjectCache();
-               return $cache->getWithSetCallback(
-                       $cache->makeKey( 'changeslistspecialpage-changetags', $context->getLanguage() ),
-                       $cache::TTL_MINUTE * 10,
-                       function () use ( $context ) {
-                               $explicitlyDefinedTags = array_fill_keys( ChangeTags::listExplicitlyDefinedTags(), 0 );
-                               $softwareActivatedTags = array_fill_keys( ChangeTags::listSoftwareActivatedTags(), 0 );
-
-                               $tagStats = ChangeTags::tagUsageStatistics();
-                               $tagHitCounts = array_merge( $explicitlyDefinedTags, $softwareActivatedTags, $tagStats );
-
-                               // Sort by hits (disabled for now)
-                               //arsort( $tagHitCounts );
-
-                               // HACK work around ChangeTags::truncateTagDescription() requiring a RequestContext
-                               $fakeContext = RequestContext::newExtraneousContext( Title::newFromText( 'Dwimmerlaik' ) );
-                               $fakeContext->setLanguage( Language::factory( $context->getLanguage() ) );
-
-                               // Build the list and data
-                               $result = [];
-                               foreach ( $tagHitCounts as $tagName => $hits ) {
-                                       if (
-                                               (
-                                                       // Only get active tags
-                                                       isset( $explicitlyDefinedTags[ $tagName ] ) ||
-                                                       isset( $softwareActivatedTags[ $tagName ] )
-                                               ) &&
-                                               // Only get tags with more than 0 hits
-                                               $hits > 0
-                                       ) {
-                                               $result[] = [
-                                                       'name' => $tagName,
-                                                       'label' => Sanitizer::stripAllTags(
-                                                               ChangeTags::tagDescription( $tagName, $context )
-                                                       ),
-                                                       'description' =>
-                                                               ChangeTags::truncateTagDescription(
-                                                                       $tagName,
-                                                                       self::TAG_DESC_CHARACTER_LIMIT,
-                                                                       $fakeContext
-                                                               ),
-                                                       'cssClass' => Sanitizer::escapeClass( 'mw-tag-' . $tagName ),
-                                                       'hits' => $hits,
-                                               ];
-                                       }
+       protected static function getChangeTagInfo( ResourceLoaderContext $context ) {
+               $explicitlyDefinedTags = array_fill_keys( ChangeTags::listExplicitlyDefinedTags(), 0 );
+               $softwareActivatedTags = array_fill_keys( ChangeTags::listSoftwareActivatedTags(), 0 );
+
+               $tagStats = ChangeTags::tagUsageStatistics();
+               $tagHitCounts = array_merge( $explicitlyDefinedTags, $softwareActivatedTags, $tagStats );
+
+               $result = [];
+               foreach ( $tagHitCounts as $tagName => $hits ) {
+                       if (
+                               (
+                                       // Only get active tags
+                                       isset( $explicitlyDefinedTags[ $tagName ] ) ||
+                                       isset( $softwareActivatedTags[ $tagName ] )
+                               ) &&
+                               // Only get tags with more than 0 hits
+                               $hits > 0
+                       ) {
+                               $labelMsg = ChangeTags::tagShortDescriptionMessage( $tagName, $context );
+                               if ( $labelMsg === false ) {
+                                       // Tag is hidden, skip it
+                                       continue;
                                }
+                               $result[] = [
+                                       'name' => $tagName,
+                                       // 'label' and 'description' filled in by getChangeTagList()
+                                       'labelMsg' => $labelMsg,
+                                       'descriptionMsg' => ChangeTags::tagLongDescriptionMessage( $tagName, $context ),
+                                       'cssClass' => Sanitizer::escapeClass( 'mw-tag-' . $tagName ),
+                                       'hits' => $hits,
+                               ];
+                       }
+               }
+               return $result;
+       }
 
-                               // Instead of sorting by hit count (disabled, see above), sort by display name
-                               usort( $result, function ( $a, $b ) {
-                                       return strcasecmp( $a['label'], $b['label'] );
-                               } );
+       /**
+        * Get information about change tags for use in getRcFiltersConfigSummary().
+        *
+        * This expands labelMsg and descriptionMsg to the raw values of each message, which captures
+        * changes in the messages but avoids the expensive step of parsing them.
+        *
+        * @param ResourceLoaderContext $context
+        * @return array[] Result of getChangeTagInfo(), with messages expanded to raw contents
+        */
+       protected static function getChangeTagListSummary( ResourceLoaderContext $context ) {
+               $tags = self::getChangeTagInfo( $context );
+               foreach ( $tags as &$tagInfo ) {
+                       $tagInfo['labelMsg'] = $tagInfo['labelMsg']->plain();
+                       if ( $tagInfo['descriptionMsg'] ) {
+                               $tagInfo['descriptionMsg'] = $tagInfo['descriptionMsg']->plain();
+                       }
+               }
+               return $tags;
+       }
 
-                               return $result;
-                       },
-                       [
-                               'lockTSE' => 30
-                       ]
-               );
+       /**
+        * Get information about change tags to export to JS via getRcFiltersConfigVars().
+        *
+        * This removes labelMsg and descriptionMsg, and adds label and description, which are parsed,
+        * stripped and (in the case of description) truncated versions of these messages. Message
+        * parsing is expensive, so to detect whether the tag list has changed, use
+        * getChangeTagListSummary() instead.
+        *
+        * @param ResourceLoaderContext $context
+        * @return array[] Result of getChangeTagInfo(), with messages parsed, stripped and truncated
+        */
+       protected static function getChangeTagList( ResourceLoaderContext $context ) {
+               $tags = self::getChangeTagInfo( $context );
+               $language = Language::factory( $context->getLanguage() );
+               foreach ( $tags as &$tagInfo ) {
+                       $tagInfo['label'] = Sanitizer::stripAllTags( $tagInfo['labelMsg']->parse() );
+                       $tagInfo['description'] = $tagInfo['descriptionMsg'] ?
+                               $language->truncateForVisual(
+                                       Sanitizer::stripAllTags( $tagInfo['descriptionMsg']->parse() ),
+                                       self::TAG_DESC_CHARACTER_LIMIT
+                               ) :
+                               '';
+                       unset( $tagInfo['labelMsg'] );
+                       unset( $tagInfo['descriptionMsg'] );
+               }
+
+               // Instead of sorting by hit count (disabled for now), sort by display name
+               usort( $tags, function ( $a, $b ) {
+                       return strcasecmp( $a['label'], $b['label'] );
+               } );
+               return $tags;
        }
 
        /**
@@ -1099,7 +1152,7 @@ abstract class ChangesListSpecialPage extends SpecialPage {
         * Register all the filters, including legacy hook-driven ones.
         * Then create a FormOptions object with options as specified by the user
         *
-        * @param array $parameters
+        * @param string $parameters
         *
         * @return FormOptions
         */