From 4ac9fa081a7c045f6a9f1cfc529d82423f485b2e Mon Sep 17 00:00:00 2001
From: Pierre Schmitz <pierre@archlinux.de>
Date: Sun, 8 Dec 2013 09:55:49 +0100
Subject: Update to MediaWiki 1.22.0

---
 includes/changes/ChangesList.php | 552 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 552 insertions(+)
 create mode 100644 includes/changes/ChangesList.php

(limited to 'includes/changes/ChangesList.php')

diff --git a/includes/changes/ChangesList.php b/includes/changes/ChangesList.php
new file mode 100644
index 00000000..bf800c46
--- /dev/null
+++ b/includes/changes/ChangesList.php
@@ -0,0 +1,552 @@
+<?php
+/**
+ * Base class for all changes lists.
+ *
+ * The class is used for formatting recent changes, related changes and watchlist.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ */
+
+class ChangesList extends ContextSource {
+
+	/**
+	 * @var Skin
+	 */
+	public $skin;
+
+	protected $watchlist = false;
+
+	protected $message;
+
+	/**
+	 * Changeslist constructor
+	 *
+	 * @param $obj Skin or IContextSource
+	 */
+	public function __construct( $obj ) {
+		if ( $obj instanceof IContextSource ) {
+			$this->setContext( $obj );
+			$this->skin = $obj->getSkin();
+		} else {
+			$this->setContext( $obj->getContext() );
+			$this->skin = $obj;
+		}
+		$this->preCacheMessages();
+	}
+
+	/**
+	 * Fetch an appropriate changes list class for the main context
+	 * This first argument used to be an User object.
+	 *
+	 * @deprecated in 1.18; use newFromContext() instead
+	 * @param string|User $unused Unused
+	 * @return ChangesList|EnhancedChangesList|OldChangesList derivative
+	 */
+	public static function newFromUser( $unused ) {
+		wfDeprecated( __METHOD__, '1.18' );
+		return self::newFromContext( RequestContext::getMain() );
+	}
+
+	/**
+	 * Fetch an appropriate changes list class for the specified context
+	 * Some users might want to use an enhanced list format, for instance
+	 *
+	 * @param $context IContextSource to use
+	 * @return ChangesList|EnhancedChangesList|OldChangesList derivative
+	 */
+	public static function newFromContext( IContextSource $context ) {
+		$user = $context->getUser();
+		$sk = $context->getSkin();
+		$list = null;
+		if ( wfRunHooks( 'FetchChangesList', array( $user, &$sk, &$list ) ) ) {
+			$new = $context->getRequest()->getBool( 'enhanced', $user->getOption( 'usenewrc' ) );
+			return $new ? new EnhancedChangesList( $context ) : new OldChangesList( $context );
+		} else {
+			return $list;
+		}
+	}
+
+	/**
+	 * Sets the list to use a "<li class='watchlist-(namespace)-(page)'>" tag
+	 * @param $value Boolean
+	 */
+	public function setWatchlistDivs( $value = true ) {
+		$this->watchlist = $value;
+	}
+
+	/**
+	 * As we use the same small set of messages in various methods and that
+	 * they are called often, we call them once and save them in $this->message
+	 */
+	private function preCacheMessages() {
+		if ( !isset( $this->message ) ) {
+			foreach ( array(
+				'cur', 'diff', 'hist', 'enhancedrc-history', 'last', 'blocklink', 'history',
+				'semicolon-separator', 'pipe-separator' ) as $msg
+			) {
+				$this->message[$msg] = $this->msg( $msg )->escaped();
+			}
+		}
+	}
+
+	/**
+	 * Returns the appropriate flags for new page, minor change and patrolling
+	 * @param array $flags Associative array of 'flag' => Bool
+	 * @param string $nothing to use for empty space
+	 * @return String
+	 */
+	public function recentChangesFlags( $flags, $nothing = '&#160;' ) {
+		global $wgRecentChangesFlags;
+		$f = '';
+		foreach ( array_keys( $wgRecentChangesFlags ) as $flag ) {
+			$f .= isset( $flags[$flag] ) && $flags[$flag]
+				? self::flag( $flag )
+				: $nothing;
+		}
+		return $f;
+	}
+
+	/**
+	 * Provide the "<abbr>" element appropriate to a given abbreviated flag,
+	 * namely the flag indicating a new page, a minor edit, a bot edit, or an
+	 * unpatrolled edit.  By default in English it will contain "N", "m", "b",
+	 * "!" respectively, plus it will have an appropriate title and class.
+	 *
+	 * @param string $flag One key of $wgRecentChangesFlags
+	 * @return String: Raw HTML
+	 */
+	public static function flag( $flag ) {
+		static $flagInfos = null;
+		if ( is_null( $flagInfos ) ) {
+			global $wgRecentChangesFlags;
+			$flagInfos = array();
+			foreach ( $wgRecentChangesFlags as $key => $value ) {
+				$flagInfos[$key]['letter'] = wfMessage( $value['letter'] )->escaped();
+				$flagInfos[$key]['title'] = wfMessage( $value['title'] )->escaped();
+				// Allow customized class name, fall back to flag name
+				$flagInfos[$key]['class'] = Sanitizer::escapeClass(
+					isset( $value['class'] ) ? $value['class'] : $key );
+			}
+		}
+
+		// Inconsistent naming, bleh, kepted for b/c
+		$map = array(
+			'minoredit' => 'minor',
+			'botedit' => 'bot',
+		);
+		if ( isset( $map[$flag] ) ) {
+			$flag = $map[$flag];
+		}
+
+		return "<abbr class='" . $flagInfos[$flag]['class'] . "' title='" . $flagInfos[$flag]['title'] . "'>" .
+			$flagInfos[$flag]['letter'] .
+			'</abbr>';
+	}
+
+	/**
+	 * Returns text for the start of the tabular part of RC
+	 * @return String
+	 */
+	public function beginRecentChangesList() {
+		$this->rc_cache = array();
+		$this->rcMoveIndex = 0;
+		$this->rcCacheIndex = 0;
+		$this->lastdate = '';
+		$this->rclistOpen = false;
+		$this->getOutput()->addModuleStyles( 'mediawiki.special.changeslist' );
+		return '';
+	}
+
+	/**
+	 * Show formatted char difference
+	 * @param $old Integer: bytes
+	 * @param $new Integer: bytes
+	 * @param $context IContextSource context to use
+	 * @return String
+	 */
+	public static function showCharacterDifference( $old, $new, IContextSource $context = null ) {
+		global $wgRCChangedSizeThreshold, $wgMiserMode;
+
+		if ( !$context ) {
+			$context = RequestContext::getMain();
+		}
+
+		$new = (int)$new;
+		$old = (int)$old;
+		$szdiff = $new - $old;
+
+		$lang = $context->getLanguage();
+		$code = $lang->getCode();
+		static $fastCharDiff = array();
+		if ( !isset( $fastCharDiff[$code] ) ) {
+			$fastCharDiff[$code] = $wgMiserMode || $context->msg( 'rc-change-size' )->plain() === '$1';
+		}
+
+		$formattedSize = $lang->formatNum( $szdiff );
+
+		if ( !$fastCharDiff[$code] ) {
+			$formattedSize = $context->msg( 'rc-change-size', $formattedSize )->text();
+		}
+
+		if ( abs( $szdiff ) > abs( $wgRCChangedSizeThreshold ) ) {
+			$tag = 'strong';
+		} else {
+			$tag = 'span';
+		}
+
+		if ( $szdiff === 0 ) {
+			$formattedSizeClass = 'mw-plusminus-null';
+		}
+		if ( $szdiff > 0 ) {
+			$formattedSize = '+' . $formattedSize;
+			$formattedSizeClass = 'mw-plusminus-pos';
+		}
+		if ( $szdiff < 0 ) {
+			$formattedSizeClass = 'mw-plusminus-neg';
+		}
+
+		$formattedTotalSize = $context->msg( 'rc-change-size-new' )->numParams( $new )->text();
+
+		return Html::element( $tag,
+			array( 'dir' => 'ltr', 'class' => $formattedSizeClass, 'title' => $formattedTotalSize ),
+			$context->msg( 'parentheses', $formattedSize )->plain() ) . $lang->getDirMark();
+	}
+
+	/**
+	 * Format the character difference of one or several changes.
+	 *
+	 * @param $old RecentChange
+	 * @param $new RecentChange last change to use, if not provided, $old will be used
+	 * @return string HTML fragment
+	 */
+	public function formatCharacterDifference( RecentChange $old, RecentChange $new = null ) {
+		$oldlen = $old->mAttribs['rc_old_len'];
+
+		if ( $new ) {
+			$newlen = $new->mAttribs['rc_new_len'];
+		} else {
+			$newlen = $old->mAttribs['rc_new_len'];
+		}
+
+		if ( $oldlen === null || $newlen === null ) {
+			return '';
+		}
+
+		return self::showCharacterDifference( $oldlen, $newlen, $this->getContext() );
+	}
+
+	/**
+	 * Returns text for the end of RC
+	 * @return String
+	 */
+	public function endRecentChangesList() {
+		if ( $this->rclistOpen ) {
+			return "</ul>\n";
+		} else {
+			return '';
+		}
+	}
+
+	/**
+	 * @param string $s HTML to update
+	 * @param $rc_timestamp mixed
+	 */
+	public function insertDateHeader( &$s, $rc_timestamp ) {
+		# Make date header if necessary
+		$date = $this->getLanguage()->userDate( $rc_timestamp, $this->getUser() );
+		if ( $date != $this->lastdate ) {
+			if ( $this->lastdate != '' ) {
+				$s .= "</ul>\n";
+			}
+			$s .= Xml::element( 'h4', null, $date ) . "\n<ul class=\"special\">";
+			$this->lastdate = $date;
+			$this->rclistOpen = true;
+		}
+	}
+
+	/**
+	 * @param string $s HTML to update
+	 * @param $title Title
+	 * @param $logtype string
+	 */
+	public function insertLog( &$s, $title, $logtype ) {
+		$page = new LogPage( $logtype );
+		$logname = $page->getName()->escaped();
+		$s .= $this->msg( 'parentheses' )->rawParams( Linker::linkKnown( $title, $logname ) )->escaped();
+	}
+
+	/**
+	 * @param string $s HTML to update
+	 * @param $rc RecentChange
+	 * @param $unpatrolled
+	 */
+	public function insertDiffHist( &$s, &$rc, $unpatrolled ) {
+		# Diff link
+		if ( $rc->mAttribs['rc_type'] == RC_NEW || $rc->mAttribs['rc_type'] == RC_LOG ) {
+			$diffLink = $this->message['diff'];
+		} elseif ( !self::userCan( $rc, Revision::DELETED_TEXT, $this->getUser() ) ) {
+			$diffLink = $this->message['diff'];
+		} else {
+			$query = array(
+				'curid' => $rc->mAttribs['rc_cur_id'],
+				'diff' => $rc->mAttribs['rc_this_oldid'],
+				'oldid' => $rc->mAttribs['rc_last_oldid']
+			);
+
+			$diffLink = Linker::linkKnown(
+				$rc->getTitle(),
+				$this->message['diff'],
+				array( 'tabindex' => $rc->counter ),
+				$query
+			);
+		}
+		$diffhist = $diffLink . $this->message['pipe-separator'];
+		# History link
+		$diffhist .= Linker::linkKnown(
+			$rc->getTitle(),
+			$this->message['hist'],
+			array(),
+			array(
+				'curid' => $rc->mAttribs['rc_cur_id'],
+				'action' => 'history'
+			)
+		);
+		$s .= $this->msg( 'parentheses' )->rawParams( $diffhist )->escaped() . ' <span class="mw-changeslist-separator">. .</span> ';
+	}
+
+	/**
+	 * @param string $s HTML to update
+	 * @param $rc RecentChange
+	 * @param $unpatrolled
+	 * @param $watched
+	 */
+	public function insertArticleLink( &$s, &$rc, $unpatrolled, $watched ) {
+		$params = array();
+
+		$articlelink = Linker::linkKnown(
+			$rc->getTitle(),
+			null,
+			array( 'class' => 'mw-changeslist-title' ),
+			$params
+		);
+		if ( $this->isDeleted( $rc, Revision::DELETED_TEXT ) ) {
+			$articlelink = '<span class="history-deleted">' . $articlelink . '</span>';
+		}
+		# To allow for boldening pages watched by this user
+		$articlelink = "<span class=\"mw-title\">{$articlelink}</span>";
+		# RTL/LTR marker
+		$articlelink .= $this->getLanguage()->getDirMark();
+
+		wfRunHooks( 'ChangesListInsertArticleLink',
+			array( &$this, &$articlelink, &$s, &$rc, $unpatrolled, $watched ) );
+
+		$s .= " $articlelink";
+	}
+
+	/**
+	 * Get the timestamp from $rc formatted with current user's settings
+	 * and a separator
+	 *
+	 * @param $rc RecentChange
+	 * @return string HTML fragment
+	 */
+	public function getTimestamp( $rc ) {
+		return $this->message['semicolon-separator'] . '<span class="mw-changeslist-date">' .
+			$this->getLanguage()->userTime( $rc->mAttribs['rc_timestamp'], $this->getUser() ) . '</span> <span class="mw-changeslist-separator">. .</span> ';
+	}
+
+	/**
+	 * Insert time timestamp string from $rc into $s
+	 *
+	 * @param string $s HTML to update
+	 * @param $rc RecentChange
+	 */
+	public function insertTimestamp( &$s, $rc ) {
+		$s .= $this->getTimestamp( $rc );
+	}
+
+	/**
+	 * Insert links to user page, user talk page and eventually a blocking link
+	 *
+	 * @param &$s String HTML to update
+	 * @param &$rc RecentChange
+	 */
+	public function insertUserRelatedLinks( &$s, &$rc ) {
+		if ( $this->isDeleted( $rc, Revision::DELETED_USER ) ) {
+			$s .= ' <span class="history-deleted">' . $this->msg( 'rev-deleted-user' )->escaped() . '</span>';
+		} else {
+			$s .= $this->getLanguage()->getDirMark() . Linker::userLink( $rc->mAttribs['rc_user'],
+				$rc->mAttribs['rc_user_text'] );
+			$s .= Linker::userToolLinks( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
+		}
+	}
+
+	/**
+	 * Insert a formatted action
+	 *
+	 * @param $rc RecentChange
+	 * @return string
+	 */
+	public function insertLogEntry( $rc ) {
+		$formatter = LogFormatter::newFromRow( $rc->mAttribs );
+		$formatter->setContext( $this->getContext() );
+		$formatter->setShowUserToolLinks( true );
+		$mark = $this->getLanguage()->getDirMark();
+		return $formatter->getActionText() . " $mark" . $formatter->getComment();
+	}
+
+	/**
+	 * Insert a formatted comment
+	 * @param $rc RecentChange
+	 * @return string
+	 */
+	public function insertComment( $rc ) {
+		if ( $rc->mAttribs['rc_type'] != RC_MOVE && $rc->mAttribs['rc_type'] != RC_MOVE_OVER_REDIRECT ) {
+			if ( $this->isDeleted( $rc, Revision::DELETED_COMMENT ) ) {
+				return ' <span class="history-deleted">' . $this->msg( 'rev-deleted-comment' )->escaped() . '</span>';
+			} else {
+				return Linker::commentBlock( $rc->mAttribs['rc_comment'], $rc->getTitle() );
+			}
+		}
+		return '';
+	}
+
+	/**
+	 * Check whether to enable recent changes patrol features
+	 *
+	 * @deprecated since 1.22
+	 * @return Boolean
+	 */
+	public static function usePatrol() {
+		global $wgUser;
+
+		wfDeprecated( __METHOD__, '1.22' );
+
+		return $wgUser->useRCPatrol();
+	}
+
+	/**
+	 * Returns the string which indicates the number of watching users
+	 * @return string
+	 */
+	protected function numberofWatchingusers( $count ) {
+		static $cache = array();
+		if ( $count > 0 ) {
+			if ( !isset( $cache[$count] ) ) {
+				$cache[$count] = $this->msg( 'number_of_watching_users_RCview' )->numParams( $count )->escaped();
+			}
+			return $cache[$count];
+		} else {
+			return '';
+		}
+	}
+
+	/**
+	 * Determine if said field of a revision is hidden
+	 * @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;
+	}
+
+	/**
+	 * Determine if the current user is allowed to view a particular
+	 * field of this revision, if it's marked as deleted.
+	 * @param $rc RCCacheEntry
+	 * @param $field Integer
+	 * @param $user User object to check, or null to use $wgUser
+	 * @return Boolean
+	 */
+	public static function userCan( $rc, $field, User $user = null ) {
+		if ( $rc->mAttribs['rc_type'] == RC_LOG ) {
+			return LogEventsList::userCanBitfield( $rc->mAttribs['rc_deleted'], $field, $user );
+		} else {
+			return Revision::userCanBitfield( $rc->mAttribs['rc_deleted'], $field, $user );
+		}
+	}
+
+	/**
+	 * @param $link string
+	 * @param $watched bool
+	 * @return string
+	 */
+	protected function maybeWatchedLink( $link, $watched = false ) {
+		if ( $watched ) {
+			return '<strong class="mw-watched">' . $link . '</strong>';
+		} else {
+			return '<span class="mw-rc-unwatched">' . $link . '</span>';
+		}
+	}
+
+	/** Inserts a rollback link
+	 *
+	 * @param $s string
+	 * @param $rc RecentChange
+	 */
+	public function insertRollback( &$s, &$rc ) {
+		if ( $rc->mAttribs['rc_type'] == RC_EDIT && $rc->mAttribs['rc_this_oldid'] && $rc->mAttribs['rc_cur_id'] ) {
+			$page = $rc->getTitle();
+			/** Check for rollback and edit permissions, disallow special pages, and only
+			  * show a link on the top-most revision */
+			if ( $this->getUser()->isAllowed( 'rollback' ) && $rc->mAttribs['page_latest'] == $rc->mAttribs['rc_this_oldid'] )
+			{
+				$rev = new Revision( array(
+					'title' => $page,
+					'id' => $rc->mAttribs['rc_this_oldid'],
+					'user' => $rc->mAttribs['rc_user'],
+					'user_text' => $rc->mAttribs['rc_user_text'],
+					'deleted' => $rc->mAttribs['rc_deleted']
+				) );
+				$s .= ' ' . Linker::generateRollback( $rev, $this->getContext() );
+			}
+		}
+	}
+
+	/**
+	 * @param $s string
+	 * @param $rc RecentChange
+	 * @param $classes
+	 */
+	public function insertTags( &$s, &$rc, &$classes ) {
+		if ( empty( $rc->mAttribs['ts_tags'] ) ) {
+			return;
+		}
+
+		list( $tagSummary, $newClasses ) = ChangeTags::formatSummaryRow( $rc->mAttribs['ts_tags'], 'changeslist' );
+		$classes = array_merge( $classes, $newClasses );
+		$s .= ' ' . $tagSummary;
+	}
+
+	public function insertExtra( &$s, &$rc, &$classes ) {
+		// Empty, used for subclasses to add anything special.
+	}
+
+	protected function showAsUnpatrolled( RecentChange $rc ) {
+		$unpatrolled = false;
+		if ( !$rc->mAttribs['rc_patrolled'] ) {
+			if ( $this->getUser()->useRCPatrol() ) {
+				$unpatrolled = true;
+			} elseif ( $this->getUser()->useNPPatrol() && $rc->mAttribs['rc_type'] == RC_NEW ) {
+				$unpatrolled = true;
+			}
+		}
+		return $unpatrolled;
+	}
+}
-- 
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