Version the minifier cache in ResourceLoader
[lhc/web/wiklou.git] / includes / ChangesList.php
index 1bfdc39..9e2d43c 100644 (file)
@@ -1,4 +1,12 @@
 <?php
+/**
+ * Classes to show various lists of changes:
+ * - watchlist
+ * - related changes
+ * - recent changes
+ *
+ * @file
+ */
 
 /**
  * @todo document
@@ -17,22 +25,18 @@ class RCCacheEntry extends RecentChange {
 }
 
 /**
- * Class to show various lists of changes:
- * - what links here
- * - related changes
- * - recent changes
+ * Base class for all changes lists
  */
 class ChangesList {
-       # Called by history lists and recent changes
        public $skin;
        protected $watchlist = false;
-
+       
        /**
        * Changeslist contructor
-       * @param Skin $skin
+       * @param $skin Skin
        */
-       public function __construct( &$skin ) {
-               $this->skin =& $skin;
+       public function __construct( $skin ) {
+               $this->skin = $skin;
                $this->preCacheMessages();
        }
 
@@ -44,11 +48,13 @@ class ChangesList {
         * @return ChangesList derivative
         */
        public static function newFromUser( &$user ) {
+               global $wgRequest;
+
                $sk = $user->getSkin();
-               $list = NULL;
+               $list = null;
                if( wfRunHooks( 'FetchChangesList', array( &$user, &$sk, &$list ) ) ) {
-                       return $user->getOption( 'usenewrc' ) ?
-                               new EnhancedChangesList( $sk ) : new OldChangesList( $sk );
+                       $new = $wgRequest->getBool( 'enhanced', $user->getOption( 'usenewrc' ) );
+                       return $new ? new EnhancedChangesList( $sk ) : new OldChangesList( $sk );
                } else {
                        return $list;
                }
@@ -56,7 +62,7 @@ class ChangesList {
        
        /**
         * Sets the list to use a <li class="watchlist-(namespace)-(page)"> tag
-        * @param bool $value
+        * @param $value Boolean
         */
        public function setWatchlistDivs( $value = true ) {
                $this->watchlist = $value;
@@ -75,21 +81,19 @@ class ChangesList {
                }
        }
 
-
        /**
         * Returns the appropriate flags for new page, minor change and patrolling
-        * @param bool $new
-        * @param bool $minor
-        * @param bool $patrolled
-        * @param string $nothing, string to use for empty space
-        * @param bool $bot
-        * @return string
+        * @param $flags Associative array of 'flag' => Bool
+        * @param $nothing String to use for empty space
+        * @return String
         */
-       protected function recentChangesFlags( $new, $minor, $patrolled, $nothing = '&nbsp;', $bot = false ) {
-               $f = $new ? self::flag( 'newpage' ) : $nothing;
-               $f .= $minor ? self::flag( 'minor' ) : $nothing;
-               $f .= $bot ? self::flag( 'bot' ) : $nothing;
-               $f .= $patrolled ? self::flag( 'unpatrolled' ) : $nothing;
+       protected function recentChangesFlags( $flags, $nothing = '&#160;' ) {
+               $f = '';
+               foreach( array( 'newpage', 'minor', 'bot', 'unpatrolled' ) as $flag ){
+                       $f .= isset( $flags[$flag] ) && $flags[$flag]
+                               ? self::flag( $flag )
+                               : $nothing;
+               }
                return $f;
        }
 
@@ -99,74 +103,41 @@ class ChangesList {
         * unpatrolled edit.  By default in English it will contain "N", "m", "b",
         * "!" respectively, plus it will have an appropriate title and class.
         *
-        * @param $key string 'newpage', 'unpatrolled', 'minor', or 'bot'
-        * @return string Raw HTML
+        * @param $key String: 'newpage', 'unpatrolled', 'minor', or 'bot'
+        * @return String: Raw HTML
         */
-       public static function flag( $key ) {
+       public static function flag( $flag ) {
                static $messages = null;
                if ( is_null( $messages ) ) {
-                       foreach ( explode( ' ', 'minoreditletter boteditletter newpageletter ' .
-                       'unpatrolledletter recentchanges-label-minor recentchanges-label-bot ' .
-                       'recentchanges-label-newpage recentchanges-label-unpatrolled' ) as $msg ) {
-                               $messages[$msg] = wfMsgExt( $msg, 'escapenoentities' );
-                       }
-               }
-               # Inconsistent naming, bleh
-               if ( $key == 'newpage' || $key == 'unpatrolled' ) {
-                       $key2 = $key;
-               } else {
-                       $key2 = $key . 'edit';
-               }
-               return "<abbr class=\"$key\" title=\""
-                       . $messages["recentchanges-label-$key"] . "\">"
-                       . $messages["${key2}letter"]
-                       . '</abbr>';
-       }
-
-       /**
-        * Some explanatory wrapper text for the given flag, to be used in a legend
-        * explaining what the flags mean.  For instance, "N - new page".  See
-        * also flag().
-        *
-        * @param $key string 'newpage', 'unpatrolled', 'minor', or 'bot'
-        * @return string Raw HTML
-        */
-       private static function flagLine( $key ) {
-               return wfMsgExt( "recentchanges-legend-$key", array( 'escapenoentities',
-                       'replaceafter' ), self::flag( $key ) );
-       }
-
-       /**
-        * A handy legend to tell users what the little "m", "b", and so on mean.
-        *
-        * @return string Raw HTML
-        */
-       public static function flagLegend() {
-               global $wgGroupPermissions, $wgLang;
-
-               $flags = array( self::flagLine( 'newpage' ),
-                       self::flagLine( 'minor' ) );
-
-               # Don't show info on bot edits unless there's a bot group of some kind
-               foreach ( $wgGroupPermissions as $rights ) {
-                       if ( isset( $rights['bot'] ) && $rights['bot'] ) {
-                               $flags[] = self::flagLine( 'bot' );
-                               break;
+                       $messages = array( 
+                               'newpage' => array( 'newpageletter', 'recentchanges-label-newpage' ),
+                               'minoredit' => array( 'minoreditletter', 'recentchanges-label-minor' ),
+                               'botedit' => array( 'boteditletter', 'recentchanges-label-bot' ),
+                               'unpatrolled' => array( 'unpatrolledletter', 'recentchanges-label-unpatrolled' ), 
+                       );
+                       foreach( $messages as $key => &$value ) {
+                               $value[0] = wfMsgExt( $value[0], 'escapenoentities' );
+                               $value[1] = wfMsgExt( $value[1], 'escapenoentities' );
                        }
                }
 
-               if ( self::usePatrol() ) {
-                       $flags[] = self::flagLine( 'unpatrolled' );
-               }
+               # Inconsistent naming, bleh
+               $map = array(
+                       'newpage' => 'newpage',
+                       'minor' => 'minoredit',
+                       'bot' => 'botedit',
+                       'unpatrolled' => 'unpatrolled',
+                       'minoredit' => 'minoredit',
+                       'botedit' => 'botedit',
+               );
+               $flag = $map[$flag];
 
-               return '<div class="mw-rc-label-legend">' .
-                       wfMsgExt( 'recentchanges-label-legend', 'parseinline',
-                       $wgLang->commaList( $flags ) ) . '</div>';
+               return "<abbr class='$flag' title='" . $messages[$flag][1] . "'>" . $messages[$flag][0] . '</abbr>';
        }
 
        /**
         * Returns text for the start of the tabular part of RC
-        * @return string
+        * @return String
         */
        public function beginRecentChangesList() {
                $this->rc_cache = array();
@@ -179,9 +150,9 @@ class ChangesList {
        
        /**
         * Show formatted char difference
-        * @param int $old bytes
-        * @param int $new bytes
-        * @returns string
+        * @param $old Integer: bytes
+        * @param $new Integer: bytes
+        * @returns String
         */
        public static function showCharacterDifference( $old, $new ) {
                global $wgRCChangedSizeThreshold, $wgLang, $wgMiserMode;
@@ -215,7 +186,7 @@ class ChangesList {
 
        /**
         * Returns text for the end of RC
-        * @return string
+        * @return String
         */
        public function endRecentChangesList() {
                if( $this->rclistOpen ) {
@@ -225,7 +196,7 @@ class ChangesList {
                }
        }
 
-       protected function insertMove( &$s, $rc ) {
+       public function insertMove( &$s, $rc ) {
                # Diff
                $s .= '(' . $this->message['diff'] . ') (';
                # Hist
@@ -257,12 +228,12 @@ class ChangesList {
                );
        }
 
-       protected function insertDateHeader( &$s, $rc_timestamp ) {
+       public function insertDateHeader( &$s, $rc_timestamp ) {
                global $wgLang;
                # Make date header if necessary
                $date = $wgLang->date( $rc_timestamp, true, true );
                if( $date != $this->lastdate ) {
-                       if( '' != $this->lastdate ) {
+                       if( $this->lastdate != '' ) {
                                $s .= "</ul>\n";
                        }
                        $s .= Xml::element( 'h4', null, $date ) . "\n<ul class=\"special\">";
@@ -271,7 +242,7 @@ class ChangesList {
                }
        }
 
-       protected function insertLog( &$s, $title, $logtype ) {
+       public function insertLog( &$s, $title, $logtype ) {
                $logname = LogPage::logName( $logtype );
                $s .= '(' . $this->skin->link(
                        $title,
@@ -282,11 +253,11 @@ class ChangesList {
                ) . ')';
        }
 
-       protected function insertDiffHist( &$s, &$rc, $unpatrolled ) {
+       public function insertDiffHist( &$s, &$rc, $unpatrolled ) {
                # Diff link
                if( $rc->mAttribs['rc_type'] == RC_NEW || $rc->mAttribs['rc_type'] == RC_LOG ) {
                        $diffLink = $this->message['diff'];
-               } else if( !$this->userCan($rc,Revision::DELETED_TEXT) ) {
+               } else if( !self::userCan($rc,Revision::DELETED_TEXT) ) {
                        $diffLink = $this->message['diff'];
                } else {
                        $query = array(
@@ -307,7 +278,7 @@ class ChangesList {
                                array( 'known', 'noclasses' )
                        );
                }
-               $s .= '('.$diffLink.') (';
+               $s .= '(' . $diffLink . $this->message['pipe-separator'];
                # History link
                $s .= $this->skin->link(
                        $rc->getTitle(),
@@ -322,7 +293,7 @@ class ChangesList {
                $s .= ') . . ';
        }
 
-       protected function insertArticleLink( &$s, &$rc, $unpatrolled, $watched ) {
+       public function insertArticleLink( &$s, &$rc, $unpatrolled, $watched ) {
                global $wgContLang;
                # If it's a new article, there is no diff link, but if it hasn't been
                # patrolled yet, we need to give users a way to do so
@@ -363,7 +334,7 @@ class ChangesList {
                $s .= " $articlelink";
        }
 
-       protected function insertTimestamp( &$s, $rc ) {
+       public function insertTimestamp( &$s, $rc ) {
                global $wgLang;
                $s .= $this->message['semicolon-separator'] . 
                        $wgLang->time( $rc->mAttribs['rc_timestamp'], true, true ) . ' . . ';
@@ -380,7 +351,7 @@ class ChangesList {
        }
 
        /** insert a formatted action */
-       protected function insertAction( &$s, &$rc ) {
+       public function insertAction( &$s, &$rc ) {
                if( $rc->mAttribs['rc_type'] == RC_LOG ) {
                        if( $this->isDeleted( $rc, LogPage::DELETED_ACTION ) ) {
                                $s .= ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-event' ) . '</span>';
@@ -392,7 +363,7 @@ class ChangesList {
        }
 
        /** insert a formatted comment */
-       protected function insertComment( &$s, &$rc ) {
+       public function insertComment( &$s, &$rc ) {
                if( $rc->mAttribs['rc_type'] != RC_MOVE && $rc->mAttribs['rc_type'] != RC_MOVE_OVER_REDIRECT ) {
                        if( $this->isDeleted( $rc, Revision::DELETED_COMMENT ) ) {
                                $s .= ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-comment' ) . '</span>';
@@ -404,7 +375,7 @@ class ChangesList {
 
        /**
         * Check whether to enable recent changes patrol features
-        * @return bool
+        * @return Boolean
         */
        public static function usePatrol() {
                global $wgUser;
@@ -430,9 +401,9 @@ class ChangesList {
 
        /**
         * Determine if said field of a revision is hidden
-        * @param RCCacheEntry $rc
-        * @param int $field one of DELETED_* bitfield constants
-        * @return bool
+        * @param $rc RCCacheEntry
+        * @param $field Integer: one of DELETED_* bitfield constants
+        * @return Boolean
         */
        public static function isDeleted( $rc, $field ) {
                return ( $rc->mAttribs['rc_deleted'] & $field ) == $field;
@@ -441,20 +412,15 @@ class ChangesList {
        /**
         * Determine if the current user is allowed to view a particular
         * field of this revision, if it's marked as deleted.
-        * @param RCCacheEntry $rc
-        * @param int $field
-        * @return bool
+        * @param $rc RCCacheEntry
+        * @param $field Integer
+        * @return Boolean
         */
        public static function userCan( $rc, $field ) {
-               if( ( $rc->mAttribs['rc_deleted'] & $field ) == $field ) {
-                       global $wgUser;
-                       $permission = ( $rc->mAttribs['rc_deleted'] & Revision::DELETED_RESTRICTED ) == Revision::DELETED_RESTRICTED
-                               ? 'suppressrevision'
-                               : 'deleterevision';
-                       wfDebug( "Checking for $permission due to $field match on {$rc->mAttribs['rc_deleted']}\n" );
-                       return $wgUser->isAllowed( $permission );
+               if( $rc->mAttribs['rc_type'] == RC_LOG ) {
+                       return LogEventsList::userCanBitfield( $rc->mAttribs['rc_deleted'], $field );
                } else {
-                       return true;
+                       return Revision::userCanBitfield( $rc->mAttribs['rc_deleted'], $field );
                }
        }
 
@@ -509,7 +475,7 @@ class OldChangesList extends ChangesList {
        /**
         * Format a line using the old system (aka without any javascript).
         */
-       public function recentChangesLine( &$rc, $watched = false, $linenumber = NULL ) {
+       public function recentChangesLine( &$rc, $watched = false, $linenumber = null ) {
                global $wgLang, $wgRCShowChangedSize, $wgUser;
                wfProfileIn( __METHOD__ );
                # Should patrol-related stuff be shown?
@@ -547,8 +513,15 @@ class OldChangesList extends ChangesList {
                } else {
                        $this->insertDiffHist( $s, $rc, $unpatrolled );
                        # M, N, b and ! (minor, new, bot and unpatrolled)
-                       $s .= $this->recentChangesFlags( $rc->mAttribs['rc_new'], $rc->mAttribs['rc_minor'],
-                               $unpatrolled, '', $rc->mAttribs['rc_bot'] );
+                       $s .= $this->recentChangesFlags( 
+                               array(
+                                       'newpage' => $rc->mAttribs['rc_new'],
+                                       'minor' => $rc->mAttribs['rc_minor'],
+                                       'unpatrolled' => $unpatrolled, 
+                                       'bot' => $rc->mAttribs['rc_bot']
+                               ),
+                               ''
+                       );
                        $this->insertArticleLink( $s, $rc, $unpatrolled, $watched );
                }
                # Edit/log timestamp
@@ -596,18 +569,18 @@ class OldChangesList extends ChangesList {
  */
 class EnhancedChangesList extends ChangesList {
        /**
-        Add the JavaScript file for enhanced changeslist
-       *  @ return string
-       */
+        * Add the JavaScript file for enhanced changeslist
+        * @return String
+        */
        public function beginRecentChangesList() {
-               global $wgStylePath, $wgStyleVersion;
+               global $wgOut;
                $this->rc_cache = array();
                $this->rcMoveIndex = 0;
                $this->rcCacheIndex = 0;
                $this->lastdate = '';
                $this->rclistOpen = false;
-               $script = Html::linkedScript( $wgStylePath . "/common/enhancedchanges.js?$wgStyleVersion" );
-               return $script;
+               $wgOut->addModuleStyles( 'mediawiki.special.changeslist' );
+               return '';
        }
        /**
         * Format a line for enhanced recentchange (aka with javascript and block of lines).
@@ -620,55 +593,53 @@ class EnhancedChangesList extends ChangesList {
                # Create a specialised object
                $rc = RCCacheEntry::newFromParent( $baseRC );
 
-               # Extract fields from DB into the function scope (rc_xxxx variables)
-               // FIXME: Would be good to replace this extract() call with something
-               // that explicitly initializes variables.
-               extract( $rc->mAttribs );
-               $curIdEq = array( 'curid' => $rc_cur_id );
+               $curIdEq = array( 'curid' => $rc->mAttribs['rc_cur_id'] );
 
                # If it's a new day, add the headline and flush the cache
-               $date = $wgLang->date( $rc_timestamp, true );
+               $date = $wgLang->date( $rc->mAttribs['rc_timestamp'], true );
                $ret = '';
                if( $date != $this->lastdate ) {
                        # Process current cache
                        $ret = $this->recentChangesBlock();
                        $this->rc_cache = array();
-                       $ret .= Xml::element( 'h4', null, $date );
+                       $ret .= Xml::element( 'h4', null, $date ) . "\n";
                        $this->lastdate = $date;
                }
 
                # Should patrol-related stuff be shown?
                if( $wgUser->useRCPatrol() ) {
-                       $rc->unpatrolled = !$rc_patrolled;
+                       $rc->unpatrolled = !$rc->mAttribs['rc_patrolled'];
                } else {
                        $rc->unpatrolled = false;
                }
 
                $showdifflinks = true;
                # Make article link
+               $type = $rc->mAttribs['rc_type'];
+               $logType = $rc->mAttribs['rc_log_type'];
                // Page moves
-               if( $rc_type == RC_MOVE || $rc_type == RC_MOVE_OVER_REDIRECT ) {
-                       $msg = ( $rc_type == RC_MOVE ) ? "1movedto2" : "1movedto2_redir";
+               if( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
+                       $msg = ( $type == RC_MOVE ) ? "1movedto2" : "1movedto2_redir";
                        $clink = wfMsg( $msg, $this->skin->linkKnown( $rc->getTitle(), null,
                                array(), array( 'redirect' => 'no' ) ),
                                $this->skin->linkKnown( $rc->getMovedToTitle() ) );
                // New unpatrolled pages
-               } else if( $rc->unpatrolled && $rc_type == RC_NEW ) {
+               } else if( $rc->unpatrolled && $type == RC_NEW ) {
                        $clink = $this->skin->linkKnown( $rc->getTitle(), null, array(),
-                               array( 'rcid' => $rc_id ) );
+                               array( 'rcid' => $rc->mAttribs['rc_id'] ) );
                // Log entries
-               } else if( $rc_type == RC_LOG ) {
-                       if( $rc_log_type ) {
-                               $logtitle = SpecialPage::getTitleFor( 'Log', $rc_log_type );
+               } else if( $type == RC_LOG ) {
+                       if( $logType ) {
+                               $logtitle = SpecialPage::getTitleFor( 'Log', $logType );
                                $clink = '(' . $this->skin->linkKnown( $logtitle, 
-                                       LogPage::logName($rc_log_type) ) . ')';
+                                       LogPage::logName( $logType ) ) . ')';
                        } else {
                                $clink = $this->skin->link( $rc->getTitle() );
                        }
                        $watched = false;
                // Log entries (old format) and special pages
-               } elseif( $rc_namespace == NS_SPECIAL ) {
-                       list( $specialName, $logtype ) = SpecialPage::resolveAliasWithSubpage( $rc_title );
+               } elseif( $rc->mAttribs['rc_namespace'] == NS_SPECIAL ) {
+                       list( $specialName, $logtype ) = SpecialPage::resolveAliasWithSubpage( $rc->mAttribs['rc_title'] );
                        if ( $specialName == 'Log' ) {
                                # Log updates, etc
                                $logname = LogPage::logName( $logtype );
@@ -687,7 +658,7 @@ class EnhancedChangesList extends ChangesList {
                        $showdifflinks = false;
                }
 
-               $time = $wgLang->time( $rc_timestamp, true, true );
+               $time = $wgLang->time( $rc->mAttribs['rc_timestamp'], true, true );
                $rc->watched = $watched;
                $rc->link = $clink;
                $rc->timestamp = $time;
@@ -695,20 +666,22 @@ class EnhancedChangesList extends ChangesList {
 
                # Make "cur" and "diff" links.  Do not use link(), it is too slow if
                # called too many times (50% of CPU time on RecentChanges!).
+               $thisOldid = $rc->mAttribs['rc_this_oldid'];
+               $lastOldid = $rc->mAttribs['rc_last_oldid'];
                if( $rc->unpatrolled ) {
-                       $rcIdQuery = array( 'rcid' => $rc_id );
+                       $rcIdQuery = array( 'rcid' => $rc->mAttribs['rc_id'] );
                } else {
                        $rcIdQuery = array();
                }
-               $querycur = $curIdEq + array( 'diff' => '0', 'oldid' => $rc_this_oldid );
-               $querydiff = $curIdEq + array( 'diff' => $rc_this_oldid, 'oldid' =>
-                       $rc_last_oldid ) + $rcIdQuery;
+               $querycur = $curIdEq + array( 'diff' => '0', 'oldid' => $thisOldid );
+               $querydiff = $curIdEq + array( 'diff' => $thisOldid, 'oldid' =>
+                       $lastOldid ) + $rcIdQuery;
 
                if( !$showdifflinks ) {
                        $curLink = $this->message['cur'];
                        $diffLink = $this->message['diff'];
-               } else if( in_array( $rc_type, array(RC_NEW,RC_LOG,RC_MOVE,RC_MOVE_OVER_REDIRECT) ) ) {
-                       if ( $rc_type != RC_NEW ) {
+               } else if( in_array( $type, array( RC_NEW, RC_LOG, RC_MOVE, RC_MOVE_OVER_REDIRECT ) ) ) {
+                       if ( $type != RC_NEW ) {
                                $curLink = $this->message['cur'];
                        } else {
                                $curUrl = htmlspecialchars( $rc->getTitle()->getLinkUrl( $querycur ) );
@@ -723,21 +696,21 @@ class EnhancedChangesList extends ChangesList {
                }
 
                # Make "last" link
-               if( !$showdifflinks || !$rc_last_oldid ) {
+               if( !$showdifflinks || !$lastOldid ) {
                        $lastLink = $this->message['last'];
-               } else if( $rc_type == RC_LOG || $rc_type == RC_MOVE || $rc_type == RC_MOVE_OVER_REDIRECT ) {
+               } else if( in_array( $type, array( RC_LOG, RC_MOVE, RC_MOVE_OVER_REDIRECT ) ) ) {
                        $lastLink = $this->message['last'];
                } else {
                        $lastLink = $this->skin->linkKnown( $rc->getTitle(), $this->message['last'],
-                               array(), $curIdEq + array('diff' => $rc_this_oldid, 'oldid' => $rc_last_oldid) + $rcIdQuery );
+                               array(), $curIdEq + array('diff' => $thisOldid, 'oldid' => $lastOldid) + $rcIdQuery );
                }
 
                # Make user links
-               if( $this->isDeleted($rc,Revision::DELETED_USER) ) {
-                       $rc->userlink = ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-user' ) . '</span>';
+               if( $this->isDeleted( $rc, Revision::DELETED_USER ) ) {
+                       $rc->userlink = ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-user' ) . '</span>';
                } else {
-                       $rc->userlink = $this->skin->userLink( $rc_user, $rc_user_text );
-                       $rc->usertalklink = $this->skin->userToolLinks( $rc_user, $rc_user_text );
+                       $rc->userlink = $this->skin->userLink( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
+                       $rc->usertalklink = $this->skin->userToolLinks( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
                }
 
                $rc->lastlink = $lastLink;
@@ -748,13 +721,13 @@ class EnhancedChangesList extends ChangesList {
                # Page moves go on their own line
                $title = $rc->getTitle();
                $secureName = $title->getPrefixedDBkey();
-               if( $rc_type == RC_MOVE || $rc_type == RC_MOVE_OVER_REDIRECT ) {
+               if( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
                        # Use an @ character to prevent collision with page names
                        $this->rc_cache['@@' . ($this->rcMoveIndex++)] = array($rc);
                } else {
                        # Logs are grouped by type
-                       if( $rc_type == RC_LOG ){
-                               $secureName = SpecialPage::getTitleFor( 'Log', $rc_log_type )->getPrefixedDBkey();
+                       if( $type == RC_LOG ){
+                               $secureName = SpecialPage::getTitleFor( 'Log', $logType )->getPrefixedDBkey();
                        }
                        if( !isset( $this->rc_cache[$secureName] ) ) {
                                $this->rc_cache[$secureName] = array();
@@ -776,7 +749,15 @@ class EnhancedChangesList extends ChangesList {
 
                wfProfileIn( __METHOD__ );
 
-               $r = '<table class="mw-enhanced-rc"><tr>';
+               # Add the namespace and title of the block as part of the class
+               if ( $block[0]->mAttribs['rc_log_type'] ) {
+                       # Log entry
+                       $classes = 'mw-collapsible mw-collapsed mw-enhanced-rc ' . Sanitizer::escapeClass( 'mw-changeslist-log-' . $block[0]->mAttribs['rc_log_type'] . '-' . $block[0]->mAttribs['rc_title'] );
+               } else {
+                       $classes = 'mw-collapsible mw-collapsed mw-enhanced-rc ' . Sanitizer::escapeClass( 'mw-changeslist-ns' . $block[0]->mAttribs['rc_namespace'] . '-' . $block[0]->mAttribs['rc_title'] );
+               }
+               $r = Html::openElement( 'table', array( 'class' => $classes ) ) .
+                       Html::openElement( 'tr' );
 
                # Collate list of users
                $userlinks = array();
@@ -836,23 +817,28 @@ class EnhancedChangesList extends ChangesList {
                $users = ' <span class="changedby">[' . 
                        implode( $this->message['semicolon-separator'], $users ) . ']</span>';
 
-               # ID for JS visibility toggle
-               $jsid = $this->rcCacheIndex;
-               # onclick handler to toggle hidden/expanded
-               $toggleLink = "onclick='toggleVisibility($jsid); return false'";
                # Title for <a> tags
                $expandTitle = htmlspecialchars( wfMsg( 'rc-enhanced-expand' ) );
                $closeTitle = htmlspecialchars( wfMsg( 'rc-enhanced-hide' ) );
 
-               $tl = "<span id='mw-rc-openarrow-$jsid' class='mw-changeslist-expanded' style='visibility:hidden'><a href='#' $toggleLink title='$expandTitle'>" . $this->sideArrow() . "</a></span>";
-               $tl .= "<span id='mw-rc-closearrow-$jsid' class='mw-changeslist-hidden' style='display:none'><a href='#' $toggleLink title='$closeTitle'>" . $this->downArrow() . "</a></span>";
-               $r .= '<td class="mw-enhanced-rc">'.$tl.'&nbsp;';
+               $tl = "<span class='mw-collapsible-toggle'>"
+                       . "<span class='mw-rc-openarrow'>"
+                       . "<a href='#' title='$expandTitle'>{$this->sideArrow()}</a>"
+                       . "</span><span class='mw-rc-closearrow'>"
+                       . "<a href='#' title='$closeTitle'>{$this->downArrow()}</a>"
+                       . "</span></span>";
+               $r .= "<td>$tl</td>";
 
                # Main line
-               $r .= $this->recentChangesFlags( $isnew, false, $unpatrolled, '&nbsp;', $bot );
+               $r .= '<td class="mw-enhanced-rc">' . $this->recentChangesFlags( array(
+                       'newpage' => $isnew,
+                       'minor' => false,
+                       'unpatrolled' => $unpatrolled, 
+                       'bot' => $bot ,
+               ) );
 
                # Timestamp
-               $r .= '&nbsp;'.$block[0]->timestamp.'&nbsp;</td><td>';
+               $r .= '&#160;'.$block[0]->timestamp.'&#160;</td><td>';
 
                # Article link
                if( $namehidden ) {
@@ -920,10 +906,10 @@ class EnhancedChangesList extends ChangesList {
                        $last = 0;
                        $first = count($block) - 1;
                        # Some events (like logs) have an "empty" size, so we need to skip those...
-                       while( $last < $first && $block[$last]->mAttribs['rc_new_len'] === NULL ) {
+                       while( $last < $first && $block[$last]->mAttribs['rc_new_len'] === null ) {
                                $last++;
                        }
-                       while( $first > $last && $block[$first]->mAttribs['rc_old_len'] === NULL ) {
+                       while( $first > $last && $block[$first]->mAttribs['rc_old_len'] === null ) {
                                $first--;
                        }
                        # Get net change
@@ -940,39 +926,36 @@ class EnhancedChangesList extends ChangesList {
                $r .= $users;
                $r .= $this->numberofWatchingusers($block[0]->numberofWatchingusers);
 
-               $r .= "</td></tr></table>\n";
-
                # Sub-entries
-               $r .= '<div id="mw-rc-subentries-'.$jsid.'" class="mw-changeslist-hidden">';
-               $r .= '<table class="mw-enhanced-rc">';
                foreach( $block as $rcObj ) {
-                       # Extract fields from DB into the function scope (rc_xxxx variables)
-                       // FIXME: Would be good to replace this extract() call with something
-                       // that explicitly initializes variables.
                        # Classes to apply -- TODO implement
                        $classes = array();
-                       extract( $rcObj->mAttribs );
+                       $type = $rcObj->mAttribs['rc_type'];
 
                        #$r .= '<tr><td valign="top">'.$this->spacerArrow();
-                       $r .= '<tr><td style="vertical-align:top;font-family:monospace">';
-                       $r .= $this->spacerIndent() . $this->spacerIndent();
-                       $r .= $this->recentChangesFlags( $rc_new, $rc_minor, $rcObj->unpatrolled, '&nbsp;', $rc_bot );
-                       $r .= '&nbsp;</td><td style="vertical-align:top"><span style="font-family:monospace">';
+                       $r .= '<tr><td></td><td class="mw-enhanced-rc">';
+                       $r .= $this->recentChangesFlags( array(
+                               'newpage' => $rcObj->mAttribs['rc_new'],
+                               'minor' => $rcObj->mAttribs['rc_minor'],
+                               'unpatrolled' => $rcObj->unpatrolled, 
+                               'bot' => $rcObj->mAttribs['rc_bot'],
+                       ) );
+                       $r .= '&#160;</td><td class="mw-enhanced-rc-nested"><span class="mw-enhanced-rc-time">';
 
                        $params = $queryParams;
 
-                       if( $rc_this_oldid != 0 ) {
-                               $params['oldid'] = $rc_this_oldid;
+                       if( $rcObj->mAttribs['rc_this_oldid'] != 0 ) {
+                               $params['oldid'] = $rcObj->mAttribs['rc_this_oldid'];
                        }
 
                        # Log timestamp
-                       if( $rc_type == RC_LOG ) {
+                       if( $type == RC_LOG ) {
                                $link = $rcObj->timestamp;
                        # Revision link
                        } else if( !ChangesList::userCan($rcObj,Revision::DELETED_TEXT) ) {
                                $link = '<span class="history-deleted">'.$rcObj->timestamp.'</span> ';
                        } else {
-                               if ( $rcObj->unpatrolled && $rc_type == RC_NEW) {
+                               if ( $rcObj->unpatrolled && $type == RC_NEW) {
                                        $params['rcid'] = $rcObj->mAttribs['rc_id'];
                                }
 
@@ -988,7 +971,7 @@ class EnhancedChangesList extends ChangesList {
                        }
                        $r .= $link . '</span>';
 
-                       if ( !$rc_type == RC_LOG || $rc_type == RC_NEW ) {
+                       if ( !$type == RC_LOG || $type == RC_NEW ) {
                                $r .= ' (';
                                $r .= $rcObj->curlink;
                                $r .= $this->message['pipe-separator'];
@@ -998,9 +981,10 @@ class EnhancedChangesList extends ChangesList {
                        $r .= ' . . ';
 
                        # Character diff
-                       if( $wgRCShowChangedSize ) {
-                               $r .= ( $rcObj->getCharacterDifference() == '' ? '' : $rcObj->getCharacterDifference() . ' . . ' ) ;
+                       if( $wgRCShowChangedSize && $rcObj->getCharacterDifference() ) {
+                               $r .= $rcObj->getCharacterDifference() . ' . . ' ;
                        }
+
                        # User links
                        $r .= $rcObj->userlink;
                        $r .= $rcObj->usertalklink;
@@ -1015,7 +999,7 @@ class EnhancedChangesList extends ChangesList {
 
                        $r .= "</td></tr>\n";
                }
-               $r .= "</table></div>\n";
+               $r .= "</table>\n";
 
                $this->rcCacheIndex++;
 
@@ -1026,10 +1010,10 @@ class EnhancedChangesList extends ChangesList {
 
        /**
         * Generate HTML for an arrow or placeholder graphic
-        * @param string $dir one of '', 'd', 'l', 'r'
-        * @param string $alt text
-        * @param string $title text
-        * @return string HTML <img> tag
+        * @param $dir String: one of '', 'd', 'l', 'r'
+        * @param $alt String: text
+        * @param $title String: text
+        * @return String: HTML <img> tag
         */
        protected function arrow( $dir, $alt='', $title='' ) {
                global $wgStylePath;
@@ -1042,7 +1026,7 @@ class EnhancedChangesList extends ChangesList {
        /**
         * Generate HTML for a right- or left-facing arrow,
         * depending on language direction.
-        * @return string HTML <img> tag
+        * @return String: HTML <img> tag
         */
        protected function sideArrow() {
                global $wgContLang;
@@ -1053,7 +1037,7 @@ class EnhancedChangesList extends ChangesList {
        /**
         * Generate HTML for a down-facing arrow
         * depending on language direction.
-        * @return string HTML <img> tag
+        * @return String: HTML <img> tag
         */
        protected function downArrow() {
                return $this->arrow( 'd', '-', wfMsg( 'rc-enhanced-hide' ) );
@@ -1061,49 +1045,50 @@ class EnhancedChangesList extends ChangesList {
 
        /**
         * Generate HTML for a spacer image
-        * @return string HTML <img> tag
+        * @return String: HTML <img> tag
         */
        protected function spacerArrow() {
                return $this->arrow( '', codepointToUtf8( 0xa0 ) ); // non-breaking space
        }
 
-       /**
-        * Add a set of spaces
-        * @return string HTML <td> tag
-        */
-       protected function spacerIndent() {
-               return '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;';
-       }
-
        /**
         * Enhanced RC ungrouped line.
-        * @return string a HTML formated line (generated using $r)
+        * @return String: a HTML formated line (generated using $r)
         */
        protected function recentChangesBlockLine( $rcObj ) {
                global $wgRCShowChangedSize;
 
                wfProfileIn( __METHOD__ );
+               $query['curid'] = $rcObj->mAttribs['rc_cur_id'];
 
-               # Extract fields from DB into the function scope (rc_xxxx variables)
-               // FIXME: Would be good to replace this extract() call with something
-               // that explicitly initializes variables.
-               $classes = array(); // TODO implement
-               extract( $rcObj->mAttribs );
-               $query['curid'] = $rc_cur_id;
+               $type = $rcObj->mAttribs['rc_type'];
+               $logType = $rcObj->mAttribs['rc_log_type'];
+               if( $logType ) {
+                       # Log entry
+                       $classes = 'mw-enhanced-rc ' . Sanitizer::escapeClass( 'mw-changeslist-log-' . $logType . '-' . $rcObj->mAttribs['rc_title'] );
+               } else {
+                       $classes = 'mw-enhanced-rc ' . Sanitizer::escapeClass( 'mw-changeslist-ns' . $rcObj->mAttribs['rc_namespace'] . '-' . $rcObj->mAttribs['rc_title'] );
+               }
+               $r = Html::openElement( 'table', array( 'class' => $classes ) ) .
+                       Html::openElement( 'tr' );
 
-               $r = '<table class="mw-enhanced-rc"><tr>';
-               $r .= '<td class="mw-enhanced-rc">' . $this->spacerArrow() . '&nbsp;';
+               $r .= '<td class="mw-enhanced-rc">' . $this->spacerArrow();
                # Flag and Timestamp
-               if( $rc_type == RC_MOVE || $rc_type == RC_MOVE_OVER_REDIRECT ) {
-                       $r .= '&nbsp;&nbsp;&nbsp;&nbsp;'; // 4 flags -> 4 spaces
+               if( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
+                       $r .= '&#160;&#160;&#160;&#160;'; // 4 flags -> 4 spaces
                } else {
-                       $r .= $this->recentChangesFlags( $rc_type == RC_NEW, $rc_minor, $rcObj->unpatrolled, '&nbsp;', $rc_bot );
+                       $r .= $this->recentChangesFlags( array(
+                               'newpage' => $type == RC_NEW,
+                               'mino' => $rcObj->mAttribs['rc_minor'],
+                               'unpatrolled' => $rcObj->unpatrolled, 
+                               'bot' => $rcObj->mAttribs['rc_bot'],
+                       ) );
                }
-               $r .= '&nbsp;'.$rcObj->timestamp.'&nbsp;</td><td>';
+               $r .= '&#160;'.$rcObj->timestamp.'&#160;</td><td>';
                # Article or log link
-               if( $rc_log_type ) {
-                       $logtitle = Title::newFromText( "Log/$rc_log_type", NS_SPECIAL );
-                       $logname = LogPage::logName( $rc_log_type );
+               if( $logType ) {
+                       $logtitle = Title::newFromText( "Log/$logType", NS_SPECIAL );
+                       $logname = LogPage::logName( $logType );
                        $r .= '(' . $this->skin->link(
                                $logtitle,
                                $logname,
@@ -1115,7 +1100,7 @@ class EnhancedChangesList extends ChangesList {
                        $this->insertArticleLink( $r, $rcObj, $rcObj->unpatrolled, $rcObj->watched );
                }
                # Diff and hist links
-               if ( $rc_type != RC_LOG ) {
+               if ( $type != RC_LOG ) {
                        $r .= ' ('. $rcObj->difflink . $this->message['pipe-separator'];
                        $query['action'] = 'history';
                        $r .= $this->skin->link(
@@ -1134,12 +1119,12 @@ class EnhancedChangesList extends ChangesList {
                # User/talk
                $r .= ' '.$rcObj->userlink . $rcObj->usertalklink;
                # Log action (if any)
-               if( $rc_log_type ) {
+               if( $logType ) {
                        if( $this->isDeleted($rcObj,LogPage::DELETED_ACTION) ) {
                                $r .= ' <span class="history-deleted">' . wfMsgHtml('rev-deleted-event') . '</span>';
                        } else {
-                               $r .= ' ' . LogPage::actionText( $rc_log_type, $rc_log_action, $rcObj->getTitle(), 
-                                       $this->skin, LogPage::extractParams($rc_params), true, true );
+                               $r .= ' ' . LogPage::actionText( $logType, $rcObj->mAttribs['rc_log_action'], $rcObj->getTitle(),
+                                       $this->skin, LogPage::extractParams( $rcObj->mAttribs['rc_params'] ), true, true );
                        }
                }
                $this->insertComment( $r, $rcObj );