Update MLEB to 2020.07

Signed-off-by: Brian Evans <grknight@gentoo.org>

1 files changed, 0 insertions, 748 deletions

diff --git a/MLEB/CleanChanges/CleanChanges_body.php b/MLEB/CleanChanges/CleanChanges_body.php
deleted file mode 100644
index f190f49b..00000000
--- a/MLEB/CleanChanges/CleanChanges_body.php
+++ /dev/null
@@ -1,748 +0,0 @@
-<?php
-
-/**
- * Generate a list of changes using an Enhanced system (use javascript).
- */
-class NCL extends EnhancedChangesList {
-	/**
-	 * Determines which version of changes list to provide, or none.
-	 * @param User $user
-	 * @param Skin $skin
-	 * @param array &$list
-	 * @return bool
-	 */
-	public static function hook( User $user, Skin $skin, &$list ) {
-		global $wgCCTrailerFilter, $wgCCFiltersOnly;
-
-		$list = null;
-
-		if ( $wgCCTrailerFilter && defined( 'ULS_VERSION' ) ) {
-			$skin->getOutput()->addModules( 'ext.cleanchanges.uls' );
-		}
-
-		if ( $wgCCFiltersOnly ) {
-			return;
-		}
-
-		/* allow override */
-		$request = $skin->getRequest();
-		if ( $request->getBool( 'cleanrc' ) ) {
-			$list = new NCL( $skin );
-		}
-		if ( $request->getBool( 'newrc' ) ) {
-			$list = new EnhancedChangesList( $skin );
-		}
-		if ( $request->getBool( 'oldrc' ) ) {
-			$list = new OldChangesList( $skin );
-		}
-
-		if ( !$list && $user->getOption( 'usenewrc' ) ) {
-			$list = new NCL( $skin );
-		}
-
-		if ( $list instanceof NCL ) {
-			$skin->getOutput()->addModules( 'ext.cleanchanges' );
-		}
-
-		/* If some list was specified, stop processing */
-		return $list === null;
-	}
-
-	protected static $userinfo = [];
-
-	/**
-	 * @param array &$vars
-	 * @return bool
-	 */
-	public static function addScriptVariables( &$vars ) {
-		$vars += self::$userinfo;
-		return true;
-	}
-
-	/**
-	 * String that comes between page details and the user details. By default
-	 * only larger space.
-	 */
-	protected $userSeparator = "\xc2\xa0 \xc2\xa0";
-
-	/**
-	 * Text direction, true for ltr and false for rtl
-	 */
-	protected $direction = true;
-
-	/**
-	 * @param IContextSource|Skin $skin
-	 */
-	public function __construct( $skin ) {
-		$lang = $this->getLanguage();
-		parent::__construct( $skin );
-		$this->direction = !$lang->isRTL();
-		$this->dir = $lang->getDirMark();
-	}
-
-	/**
-	 * @return String
-	 */
-	public function beginRecentChangesList() {
-		parent::beginRecentChangesList();
-		$dir = $this->direction ? 'ltr' : 'rtl';
-		return Xml::openElement(
-				'div',
-				[ 'style' => "direction: $dir" ]
-			);
-	}
-
-	/**
-	 * @return string
-	 */
-	public function endRecentChangesList() {
-		return $this->recentChangesBlock() . '</div>';
-	}
-
-	/**
-	 * @param RCCacheEntry|null $rc
-	 * @return int
-	 */
-	protected function isLog( RCCacheEntry $rc = null ) {
-		if ( $rc && $rc->getAttribute( 'rc_type' ) == RC_LOG ) {
-			return 2;
-		}
-		return 0;
-	}
-
-	/**
-	 * @param RCCacheEntry $rc
-	 * @return string
-	 */
-	protected function getLogTitle( RCCacheEntry $rc ) {
-		$logtype = $rc->getAttribute( 'rc_log_type' );
-		$logpage = new LogPage( $logtype );
-		$logname = $logpage->getName()->escaped();
-		$titleObj = SpecialPage::getTitleFor( 'Log', $logtype );
-		$link = Linker::link( $titleObj, $logname );
-		return $this->msg( 'parentheses' )->rawParams( $link )->escaped();
-	}
-
-	/**
-	 * Format a line for enhanced recentchange (aka with JavaScript and block of lines).
-	 * @param RecentChange &$baseRC
-	 * @param bool $watched
-	 * @param int|null $linenumber
-	 * @return string
-	 */
-	public function recentChangesLine( &$baseRC, $watched = false, $linenumber = null ) {
-		# Create a specialised object
-		$rc = RCCacheEntry::newFromParent( $baseRC );
-
-		// Extract most used variables
-		$timestamp = $rc->getAttribute( 'rc_timestamp' );
-		$titleObj = $rc->getTitle();
-		$rc_id = $rc->getAttribute( 'rc_id' );
-
-		$lang = $this->getLanguage();
-		$date = $lang->date( $timestamp, /* adj */ true, /* format */ true );
-		$time = $lang->time( $timestamp, /* adj */ true, /* format */ true );
-
-		# Should patrol-related stuff be shown?
-		$rc->unpatrolled = $this->showAsUnpatrolled( $rc );
-
-		$logEntry = $this->isLog( $rc );
-		if ( $logEntry ) {
-			$clink = $this->getLogTitle( $rc );
-		} elseif ( $rc->unpatrolled && $rc->getAttribute( 'rc_type' ) == RC_NEW ) {
-			# Unpatrolled new page, give rc_id in query
-			$clink = linker::linkKnown(
-				$titleObj,
-				null,
-				[],
-				[ 'rcid' => $rc_id ]
-			);
-		} else {
-			$clink = Linker::linkKnown( $titleObj );
-		}
-
-		$rc->watched   = $watched;
-		$rc->link      = $this->maybeWatchedLink( $clink, $watched );
-		$rc->timestamp = $time;
-		$rc->numberofWatchingusers = $baseRC->numberofWatchingusers;
-
-		$rc->_reqCurId = [ 'curid' => $rc->getAttribute( 'rc_cur_id' ) ];
-		$rc->_reqOldId = [ 'oldid' => $rc->getAttribute( 'rc_this_oldid' ) ];
-		$this->makeLinks( $rc );
-
-		// Make user links
-		if ( self::isDeleted( $rc, Revision::DELETED_USER ) ) {
-			$rc->_user = ' <span class="history-deleted">' .
-				$this->msg( 'rev-deleted-user' )->escaped() .
-				'</span>';
-			$rc->_userInfo = '';
-			self::$userinfo += [];
-		} else {
-			$rc->_user = Linker::userLink(
-				$rc->getAttribute( 'rc_user' ),
-				$rc->getAttribute( 'rc_user_text' )
-			);
-			$stuff = $this->userToolLinks(
-				$rc->getAttribute( 'rc_user' ),
-				$rc->getAttribute( 'rc_user_text' )
-			);
-			// TODO: userToolLinks can return ''
-			self::$userinfo += $stuff[1];
-			$rc->_userInfo = $stuff[0];
-		}
-
-		if ( !$this->isLog( $rc ) ) {
-			$rc->_comment = $this->getComment( $rc );
-		}
-
-		$rc->_watching = $this->numberofWatchingusers( $baseRC->numberofWatchingusers );
-
-		# If it's a new day, add the headline and flush the cache
-		$ret = '';
-		if ( $date !== $this->lastdate ) {
-			# Process current cache
-			$ret = $this->recentChangesBlock();
-			$this->rc_cache = [];
-			$ret .= Xml::element( 'h4', null, $date ) . "\n";
-			$this->lastdate = $date;
-		}
-
-		# Put accumulated information into the cache, for later display
-		# Page moves go on their own line
-		if ( $logEntry ) {
-			$secureName = $this->getLogTitle( $rc );
-		} else {
-			$secureName = $titleObj->getPrefixedDBkey();
-		}
-		$this->rc_cache[$secureName][] = $rc;
-
-		return $ret;
-	}
-
-	/**
-	 * @param RCCacheEntry $rc
-	 */
-	protected function makeLinks( RCCacheEntry $rc ) {
-		/* These will be overriden with actual links below, if applicable */
-		$rc->_curLink  = $this->message['cur'];
-		$rc->_diffLink = $this->message['diff'];
-		$rc->_lastLink = $this->message['last'];
-		$rc->_histLink = $this->message['hist'];
-
-		if ( !$this->isLog( $rc ) ) {
-			# Make cur, diff and last links
-			$querycur = [ 'diff' => 0 ] + $rc->_reqCurId + $rc->_reqOldId;
-			$querydiff = [
-				'diff'  => $rc->getAttribute( 'rc_this_oldid' ),
-				'oldid' => $rc->getAttribute( 'rc_last_oldid' ),
-				'rcid'  => $rc->unpatrolled ? $rc->getAttribute( 'rc_id' ) : '',
-			] + $rc->_reqCurId;
-
-			$rc->_curLink = Linker::linkKnown( $rc->getTitle(),
-					$this->message['cur'], [], $querycur );
-
-			if ( $rc->getAttribute( 'rc_type' ) != RC_NEW ) {
-				$rc->_diffLink = Linker::linkKnown( $rc->getTitle(),
-					$this->message['diff'], [], $querydiff );
-			}
-
-			if ( $rc->getAttribute( 'rc_last_oldid' ) != 0 ) {
-				// This is not the first revision
-				$rc->_lastLink = Linker::linkKnown( $rc->getTitle(),
-					$this->message['last'], [], $querydiff );
-			}
-
-			$rc->_histLink = Linker::link( $rc->getTitle(),
-				$this->message['hist'], [],
-				$rc->_reqCurId + [ 'action' => 'history' ]
-			);
-		}
-	}
-
-	/**
-	 * Enhanced RC group
-	 * @param RCCacheEntry[] $block
-	 * @return string
-	 */
-	protected function recentChangesBlockGroup( $block ) {
-		# Collate list of users
-		$isnew = false;
-		$userlinks = [];
-		$overrides = [ 'minor' => false, 'bot' => false ];
-		$oldid = 0;
-		foreach ( $block as $rcObj ) {
-			$oldid = $rcObj->getAttribute( 'rc_last_oldid' );
-			if ( $rcObj->getAttribute( 'rc_new' ) ) {
-				$isnew = $overrides['new'] = true;
-			}
-			$u = $rcObj->_user;
-			if ( !isset( $userlinks[$u] ) ) {
-				$userlinks[$u] = 0;
-			}
-			if ( $rcObj->unpatrolled ) {
-				$overrides['patrol'] = true;
-			}
-
-			$userlinks[$u]++;
-		}
-
-		# Main line, flags and timestamp
-
-		$info = Xml::tags( 'code', null,
-			$this->getFlags( $block[0], $overrides ) . ' ' . $block[0]->timestamp );
-		$rci = 'RCI' . $this->rcCacheIndex;
-		$rcl = 'RCL' . $this->rcCacheIndex;
-		$rcm = 'RCM' . $this->rcCacheIndex;
-		$linkAttribs = [
-			'data-mw-cleanchanges-level' => $rci,
-			'data-mw-cleanchanges-other' => $rcm,
-			'data-mw-cleanchanges-link' => $rcl,
-			'tabindex' => '0',
-			'role' => 'button',
-			'class' => 'mw-cleanchanges-showblock'
-		];
-		$tl =
-		Xml::tags( 'span', [ 'id' => $rcm ],
-			Xml::tags( 'a', $linkAttribs,
-				$this->arrow( $this->direction ? 'r' : 'l' ) ) ) .
-		Xml::tags( 'span', [ 'id' => $rcl, 'style' => 'display: none;' ],
-			Xml::tags( 'a', $linkAttribs, $this->downArrow() ) );
-
-		$items[] = $tl . $info;
-
-		# Article link
-		$items[] = $block[0]->link;
-
-		$log = $this->isLog( $block[0] );
-		if ( !$log ) {
-			# Changes
-			$n = count( $block );
-			static $nchanges = [];
-			if ( !isset( $nchanges[$n] ) ) {
-				$nchanges[$n] = $this->msg( 'nchanges' )->numParams( $n )->escaped();
-			}
-
-			if ( !$isnew ) {
-				$changes = Linker::linkKnown(
-					$block[0]->getTitle(),
-					$nchanges[$n],
-					[],
-					[
-						'curid' => $block[0]->getAttribute( 'rc_cur_id' ),
-						'diff' => $block[0]->getAttribute( 'rc_this_oldid' ),
-						'oldid' => $oldid
-					]
-				);
-			} else {
-				$changes = $nchanges[$n];
-			}
-
-			$size = $this->getCharacterDifference( $block[0], $block[count( $block ) - 1] );
-			$items[] = $this->changeInfo( $changes, $block[0]->_histLink, $size );
-		}
-
-		$items[] = $this->userSeparator;
-
-		# Sort the list and convert to text
-		$items[] = $this->makeUserlinks( $userlinks );
-		$items[] = $block[0]->_watching;
-
-		$lines = Xml::tags( 'div', null, implode( " {$this->dir}", $items ) ) . "\n";
-
-		# Sub-entries
-		$lines .= Xml::tags( 'div',
-			[ 'id' => $rci, 'style' => 'display: none;' ],
-			$this->subEntries( $block )
-		) . "\n";
-
-		$this->rcCacheIndex++;
-		return $lines . "\n";
-	}
-
-	/**
-	 * Generate HTML for an arrow or placeholder graphic
-	 * @param string $dir One of '', 'd', 'l', 'r'
-	 * @param string $alt
-	 * @param string $title
-	 * @return string HTML "<img>" tag
-	 */
-	protected function arrow( $dir, $alt = '', $title = '' ) {
-		global $wgExtensionAssetsPath;
-
-		return Html::element(
-			'img',
-			[
-				'src' => "$wgExtensionAssetsPath/CleanChanges/images/Arr_$dir.png",
-				'width' => 12,
-				'height' => 12,
-				'alt' => $alt,
-				'title' => $title,
-			]
-		);
-	}
-
-	/**
-	 * Generate HTML for a right- or left-facing arrow,
-	 * depending on language direction.
-	 * @return string HTML "<img>" tag
-	 */
-	protected function sideArrow() {
-		$dir = $this->getLanguage()->isRTL() ? 'l' : 'r';
-
-		return $this->arrow( $dir, '+', $this->msg( 'rc-enhanced-expand' )->text() );
-	}
-
-	/**
-	 * Generate HTML for a down-facing arrow
-	 * depending on language direction.
-	 * @return string HTML "<img>" tag
-	 */
-	protected function downArrow() {
-		return $this->arrow( 'd', '-', $this->msg( 'rc-enhanced-hide' )->text() );
-	}
-
-	/**
-	 * Generate HTML for a spacer image
-	 * @return string HTML "<img>" tag
-	 */
-	protected function spacerArrow() {
-		return $this->arrow( '', UtfNormal\Utils::codepointToUtf8( 0xa0 ) ); // non-breaking space
-	}
-
-	/**
-	 * @param RCCacheEntry[] $block
-	 * @return string
-	 */
-	protected function subEntries( array $block ) {
-		$lines = '';
-		foreach ( $block as $rcObj ) {
-			$items = [];
-			$log = $this->isLog( $rcObj );
-
-			$time = $rcObj->timestamp;
-			if ( !$log ) {
-				$time = Linker::linkKnown(
-					$rcObj->getTitle(),
-					$rcObj->timestamp,
-					[],
-					$rcObj->_reqOldId + $rcObj->_reqCurId
-				);
-			}
-
-			$info = $this->getFlags( $rcObj ) . ' ' . $time;
-			$items[] = $this->spacerArrow() . Xml::tags( 'code', null, $info );
-
-			if ( !$log ) {
-				$cur  = $rcObj->_curLink;
-				$last = $rcObj->_lastLink;
-
-				if ( $block[0] === $rcObj ) {
-					// no point diffing first to first
-					$cur = $this->message['cur'];
-				}
-
-				$items[] = $this->changeInfo( $cur, $last, $this->getCharacterDifference( $rcObj ) );
-			}
-
-			$items[] = $this->userSeparator;
-
-			if ( $this->isLog( $rcObj ) ) {
-				$items[] = $this->insertLogEntry( $rcObj );
-			} else {
-				$items[] = $rcObj->_user;
-				$items[] = $rcObj->_userInfo;
-				$items[] = $rcObj->_comment;
-			}
-
-			$lines .= '<div>' . implode( " {$this->dir}", $items ) . "</div>\n";
-		}
-		return $lines;
-	}
-
-	/**
-	 * @param string $diff
-	 * @param string $hist
-	 * @param mixed $size
-	 * @return string
-	 */
-	protected function changeInfo( $diff, $hist, $size ) {
-		if ( is_int( $size ) ) {
-			$size = $this->wrapCharacterDifference( $size );
-			// FIXME: i18n: Hard coded parentheses and spaces.
-			return $this->msg( 'cleanchanges-rcinfo-3' )->rawParams( $diff, $hist, $size )->escaped();
-		} else {
-			return $this->msg( 'cleanchanges-rcinfo-2' )->rawParams( $diff, $hist )->escaped();
-		}
-	}
-
-	/**
-	 * Enhanced RC ungrouped line.
-	 * @param RCCacheEntry $rcObj
-	 * @return string a HTML formated line
-	 */
-	protected function recentChangesBlockLine( $rcObj ) {
-		# Flag and Timestamp
-		$info = $this->getFlags( $rcObj ) . ' ' . $rcObj->timestamp;
-		$items[] = $this->spacerArrow() . Xml::tags( 'code', null, $info );
-
-		# Article link
-		$items[] = $rcObj->link;
-
-		if ( !$this->isLog( $rcObj ) ) {
-			$items[] = $this->changeInfo( $rcObj->_diffLink, $rcObj->_histLink,
-				$this->getCharacterDifference( $rcObj )
-			);
-		}
-
-		$items[] = $this->userSeparator;
-
-		if ( $this->isLog( $rcObj ) ) {
-			$items[] = $this->insertLogEntry( $rcObj );
-		} else {
-			$items[] = $rcObj->_user;
-			$items[] = $rcObj->_userInfo;
-			$items[] = $rcObj->_comment;
-			$items[] = $rcObj->_watching;
-		}
-
-		return '<div>' . implode( " {$this->dir}", $items ) . "</div>\n";
-	}
-
-	/**
-	 * @param RCCacheEntry $rc
-	 * @return string
-	 */
-	public function getComment( RCCacheEntry $rc ) {
-		$comment = $rc->getAttribute( 'rc_comment' );
-		$action = '';
-		if ( $comment === '' ) {
-			return $action;
-		} elseif ( self::isDeleted( $rc, LogPage::DELETED_COMMENT ) ) {
-			$priviledged = $this->getUser()->isAllowed( 'deleterevision' );
-			if ( $priviledged ) {
-				return $action . ' <span class="history-deleted">' .
-					Linker::formatComment( $comment ) .
-					'</span>';
-			}
-			return $action . ' <span class="history-deleted">' .
-				$this->msg( 'rev-deleted-comment' )->escaped() .
-				'</span>';
-		}
-		return $action . Linker::commentBlock( $comment, $rc->getTitle() );
-	}
-
-	/**
-	 * Enhanced user tool links, with javascript functionality.
-	 * @param int $userId user id, 0 for anons
-	 * @param string $userText username
-	 * @return array|string Either an array of html and array of messages, or ''
-	 * 	[0]: html span and links to user tools
-	 * 	[1]: array of escaped message strings
-	 */
-	public function userToolLinks( $userId, $userText ) {
-		global $wgDisableAnonTalk;
-		$talkable = !( $wgDisableAnonTalk && 0 == $userId );
-
-		/*
-		 * Assign each different user a running id. This is used to show user tool
-		 * links on demand with javascript, to reduce page size when one user has
-		 * multiple changes.
-		 *
-		 * $linkindex is the running id, and $users contain username -> html snippet
-		 * for javascript.
-		 */
-
-		static $linkindex = 0;
-		$linkindex++;
-
-		static $users = [];
-		$userindex = array_search( $userText, $users, true );
-		if ( $userindex === false ) {
-			$users[] = $userText;
-			$userindex = count( $users ) - 1;
-		}
-
-		global $wgExtensionAssetsPath;
-		$image = Xml::element( 'img', [
-			'src' => $wgExtensionAssetsPath . '/CleanChanges/images/showuserlinks.png',
-			'alt' => $this->msg( 'cleanchanges-showuserlinks' )->text(),
-			'title' => $this->msg( 'cleanchanges-showuserlinks' )->text(),
-			'width' => '15',
-			'height' => '11',
-			]
-		);
-
-		$rci = 'RCUI' . $userindex;
-		$rcl = 'RCUL' . $linkindex;
-		$rcm = 'RCUM' . $linkindex;
-		$linkAttribs = [
-			'tabindex' => '0',
-			'role' => 'button',
-			'class' => 'mw-cleanchanges-showuserinfo',
-			'data-mw-userinfo-id' => $rci,
-			'data-mw-userinfo-target' => $rcl
-		];
-		$tl  = Xml::tags( 'span', [ 'id' => $rcm ],
-			Xml::tags( 'a', $linkAttribs, $image )
-		);
-		$tl .= Xml::element( 'span', [ 'id' => $rcl ], ' ' );
-
-		$items = [];
-		if ( $talkable ) {
-			$items[] = Linker::userTalkLink( $userId, $userText );
-		}
-		if ( $userId ) {
-			$targetPage = SpecialPage::getTitleFor( 'Contributions', $userText );
-			$items[] = Linker::linkKnown( $targetPage,
-				$this->msg( 'contribslink' )->escaped() );
-		}
-		if ( $this->getUser()->isAllowed( 'block' ) ) {
-			$items[] = Linker::blockLink( $userId, $userText );
-		}
-		if ( $userId ) {
-			$userrightsPage = new UserrightsPage();
-			if ( $userrightsPage->userCanChangeRights( User::newFromId( $userId ) ) ) {
-				$targetPage = SpecialPage::getTitleFor( 'Userrights', $userText );
-				$items[] = Linker::linkKnown( $targetPage,
-					$this->msg( 'cleanchanges-changerightslink' )->escaped() );
-			}
-		}
-
-		if ( $items ) {
-			$msg = $this->msg( 'parentheses' )
-				->rawParams( $this->getLanguage()->pipeList( $items ) )
-				->escaped();
-			$data = [ "wgUserInfo$rci" => $msg ];
-
-			return [ $tl, $data ];
-		} else {
-			return '';
-		}
-	}
-
-	/**
-	 * Makes aggregated list of contributors for a changes group.
-	 * Example: [Usera; AnotherUser; ActiveUser ‎(2×); Userabc ‎(6×)]
-	 * @param array $userlinks
-	 * @return string
-	 */
-	protected function makeUserlinks( $userlinks ) {
-		/*
-		 * User with least changes first, and fallback to alphabetical sorting if
-		 * multiple users have same number of changes.
-		 */
-		krsort( $userlinks );
-		asort( $userlinks );
-
-		$users = [];
-		foreach ( $userlinks as $userlink => $count ) {
-			$text = $userlink;
-			if ( $count > 1 ) {
-				$lang = $this->getLanguage();
-				$count = $lang->formatNum( $count );
-				$text .= "{$lang->getDirMark()}×$count";
-			}
-			array_push( $users, $text );
-		}
-		$text = implode( '; ', $users );
-		return $this->XMLwrapper( 'changedby', "[$text]", 'span', false );
-	}
-
-	/**
-	 * @param RCCacheEntry $rc
-	 * @param array|null $overrides
-	 * @return string
-	 */
-	protected function getFlags( $rc, array $overrides = null ) {
-		// @todo We assume all characters are of equal width, which they may be not
-		$map = [
-			# item  =>        field       letter-or-something
-			'new'   => [ 'rc_new',   self::flag( 'newpage' ) ],
-			'minor' => [ 'rc_minor', self::flag( 'minor' ) ],
-			'bot'   => [ 'rc_bot',   self::flag( 'bot' ) ],
-		];
-
-		static $nothing = "\xc2\xa0";
-
-		$items = [];
-		foreach ( $map as $item => $data ) {
-			list( $field, $flag ) = $data;
-			$bool = isset( $overrides[$item] ) ? $overrides[$item] : $rc->getAttribute( $field );
-			$items[] = $bool ? $flag : $nothing;
-		}
-
-		if ( $this->getUser()->useRCPatrol() ) {
-			if ( isset( $overrides['patrol'] ) ) {
-				$items[] = $overrides['patrol'] ? self::flag( 'unpatrolled' ) : $nothing;
-			} elseif ( $this->showAsUnpatrolled( $rc ) ) {
-				$items[] = self::flag( 'unpatrolled' );
-			} else {
-				$items[] = $nothing;
-			}
-		}
-
-		return implode( '', $items );
-	}
-
-	/**
-	 * @param RCCacheEntry $new
-	 * @param RCCacheEntry|null $old
-	 * @return mixed
-	 */
-	protected function getCharacterDifference( $new, $old = null ) {
-		if ( $old === null ) {
-			$old = $new;
-		}
-
-		$newSize = $new->getAttribute( 'rc_new_len' );
-		$oldSize = $old->getAttribute( 'rc_old_len' );
-		if ( $newSize === null || $oldSize === null ) {
-			// @todo Return null instead of string here?
-			return '';
-		}
-
-		return $newSize - $oldSize;
-	}
-
-	/**
-	 * @param mixed $szdiff Character difference.
-	 * @return string
-	 */
-	public function wrapCharacterDifference( $szdiff ) {
-		global $wgRCChangedSizeThreshold;
-		static $cache = [];
-		if ( !isset( $cache[$szdiff] ) ) {
-			// @todo FIXME: Hard coded text (+).
-			$prefix = $szdiff > 0 ? '+' : '';
-			$cache[$szdiff] = $prefix . $this->msg( 'rc-change-size',
-				$this->getLanguage()->formatNum( $szdiff )
-			)->text();
-		}
-
-		$tag = 'span';
-		if ( abs( $szdiff ) > abs( $wgRCChangedSizeThreshold ) ) {
-			$tag = 'strong';
-		}
-
-		if ( $szdiff === 0 ) {
-			return $this->XMLwrapper( 'mw-plusminus-null', $cache[$szdiff], $tag );
-		} elseif ( $szdiff > 0 ) {
-			return $this->XMLwrapper( 'mw-plusminus-pos', $cache[$szdiff], $tag );
-		}
-		return $this->XMLwrapper( 'mw-plusminus-neg', $cache[$szdiff], $tag );
-	}
-
-	/**
-	 * @param string $class
-	 * @param string $content
-	 * @param string $tag
-	 * @param bool $escape
-	 * @return string
-	 */
-	protected function XMLwrapper( $class, $content, $tag = 'span', $escape = true ) {
-		if ( $escape ) {
-			return Xml::element( $tag, [ 'class' => $class ], $content );
-		}
-		return Xml::tags( $tag, [ 'class' => $class ], $content );
-	}
-}