MediaWiki  REL1_21
ChangesList.php
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00001 <?php
00031 class RCCacheEntry extends RecentChange {
00032         var $secureName, $link;
00033         var $curlink, $difflink, $lastlink, $usertalklink, $versionlink;
00034         var $userlink, $timestamp, $watched;
00035 
00040         static function newFromParent( $rc ) {
00041                 $rc2 = new RCCacheEntry;
00042                 $rc2->mAttribs = $rc->mAttribs;
00043                 $rc2->mExtra = $rc->mExtra;
00044                 return $rc2;
00045         }
00046 }
00047 
00051 class ChangesList extends ContextSource {
00052 
00056         public $skin;
00057 
00058         protected $watchlist = false;
00059 
00060         protected $message;
00061 
00067         public function __construct( $obj ) {
00068                 if ( $obj instanceof IContextSource ) {
00069                         $this->setContext( $obj );
00070                         $this->skin = $obj->getSkin();
00071                 } else {
00072                         $this->setContext( $obj->getContext() );
00073                         $this->skin = $obj;
00074                 }
00075                 $this->preCacheMessages();
00076         }
00077 
00086         public static function newFromUser( $unused ) {
00087                 wfDeprecated( __METHOD__, '1.18' );
00088                 return self::newFromContext( RequestContext::getMain() );
00089         }
00090 
00098         public static function newFromContext( IContextSource $context ) {
00099                 $user = $context->getUser();
00100                 $sk = $context->getSkin();
00101                 $list = null;
00102                 if( wfRunHooks( 'FetchChangesList', array( $user, &$sk, &$list ) ) ) {
00103                         $new = $context->getRequest()->getBool( 'enhanced', $user->getOption( 'usenewrc' ) );
00104                         return $new ? new EnhancedChangesList( $context ) : new OldChangesList( $context );
00105                 } else {
00106                         return $list;
00107                 }
00108         }
00109 
00114         public function setWatchlistDivs( $value = true ) {
00115                 $this->watchlist = $value;
00116         }
00117 
00122         private function preCacheMessages() {
00123                 if( !isset( $this->message ) ) {
00124                         foreach ( explode( ' ', 'cur diff hist last blocklink history ' .
00125                         'semicolon-separator pipe-separator' ) as $msg ) {
00126                                 $this->message[$msg] = $this->msg( $msg )->escaped();
00127                         }
00128                 }
00129         }
00130 
00137         protected function recentChangesFlags( $flags, $nothing = '&#160;' ) {
00138                 $f = '';
00139                 foreach( array( 'newpage', 'minor', 'bot', 'unpatrolled' ) as $flag ) {
00140                         $f .= isset( $flags[$flag] ) && $flags[$flag]
00141                                 ? self::flag( $flag )
00142                                 : $nothing;
00143                 }
00144                 return $f;
00145         }
00146 
00156         public static function flag( $flag ) {
00157                 static $messages = null;
00158                 if ( is_null( $messages ) ) {
00159                         $messages = array(
00160                                 'newpage' => array( 'newpageletter', 'recentchanges-label-newpage' ),
00161                                 'minoredit' => array( 'minoreditletter', 'recentchanges-label-minor' ),
00162                                 'botedit' => array( 'boteditletter', 'recentchanges-label-bot' ),
00163                                 'unpatrolled' => array( 'unpatrolledletter', 'recentchanges-label-unpatrolled' ),
00164                         );
00165                         foreach( $messages as &$value ) {
00166                                 $value[0] = wfMessage( $value[0] )->escaped();
00167                                 $value[1] = wfMessage( $value[1] )->escaped();
00168                         }
00169                 }
00170 
00171                 # Inconsistent naming, bleh
00172                 $map = array(
00173                         'newpage' => 'newpage',
00174                         'minor' => 'minoredit',
00175                         'bot' => 'botedit',
00176                         'unpatrolled' => 'unpatrolled',
00177                         'minoredit' => 'minoredit',
00178                         'botedit' => 'botedit',
00179                 );
00180                 $flag = $map[$flag];
00181 
00182                 return "<abbr class='$flag' title='" . $messages[$flag][1] . "'>" . $messages[$flag][0] . '</abbr>';
00183         }
00184 
00189         public function beginRecentChangesList() {
00190                 $this->rc_cache = array();
00191                 $this->rcMoveIndex = 0;
00192                 $this->rcCacheIndex = 0;
00193                 $this->lastdate = '';
00194                 $this->rclistOpen = false;
00195                 $this->getOutput()->addModuleStyles( 'mediawiki.special.changeslist' );
00196                 return '';
00197         }
00198 
00206         public static function showCharacterDifference( $old, $new, IContextSource $context = null ) {
00207                 global $wgRCChangedSizeThreshold, $wgMiserMode;
00208 
00209                 if ( !$context ) {
00210                         $context = RequestContext::getMain();
00211                 }
00212 
00213                 $new = (int)$new;
00214                 $old = (int)$old;
00215                 $szdiff = $new - $old;
00216 
00217                 $lang = $context->getLanguage();
00218                 $code = $lang->getCode();
00219                 static $fastCharDiff = array();
00220                 if ( !isset( $fastCharDiff[$code] ) ) {
00221                         $fastCharDiff[$code] = $wgMiserMode || $context->msg( 'rc-change-size' )->plain() === '$1';
00222                 }
00223 
00224                 $formattedSize = $lang->formatNum( $szdiff );
00225 
00226                 if ( !$fastCharDiff[$code] ) {
00227                         $formattedSize = $context->msg( 'rc-change-size', $formattedSize )->text();
00228                 }
00229 
00230                 if( abs( $szdiff ) > abs( $wgRCChangedSizeThreshold ) ) {
00231                         $tag = 'strong';
00232                 } else {
00233                         $tag = 'span';
00234                 }
00235 
00236                 if ( $szdiff === 0 ) {
00237                         $formattedSizeClass = 'mw-plusminus-null';
00238                 }
00239                 if ( $szdiff > 0 ) {
00240                         $formattedSize = '+' . $formattedSize;
00241                         $formattedSizeClass = 'mw-plusminus-pos';
00242                 }
00243                 if ( $szdiff < 0 ) {
00244                         $formattedSizeClass = 'mw-plusminus-neg';
00245                 }
00246 
00247                 $formattedTotalSize = $context->msg( 'rc-change-size-new' )->numParams( $new )->text();
00248 
00249                 return Html::element( $tag,
00250                         array( 'dir' => 'ltr', 'class' => $formattedSizeClass, 'title' => $formattedTotalSize ),
00251                         $context->msg( 'parentheses', $formattedSize )->plain() ) . $lang->getDirMark();
00252         }
00253 
00261         public function formatCharacterDifference( RecentChange $old, RecentChange $new = null ) {
00262                 $oldlen = $old->mAttribs['rc_old_len'];
00263 
00264                 if ( $new ) {
00265                         $newlen = $new->mAttribs['rc_new_len'];
00266                 } else {
00267                         $newlen = $old->mAttribs['rc_new_len'];
00268                 }
00269 
00270                 if( $oldlen === null || $newlen === null ) {
00271                         return '';
00272                 }
00273 
00274                 return self::showCharacterDifference( $oldlen, $newlen, $this->getContext() );
00275         }
00276 
00281         public function endRecentChangesList() {
00282                 if( $this->rclistOpen ) {
00283                         return "</ul>\n";
00284                 } else {
00285                         return '';
00286                 }
00287         }
00288 
00293         public function insertDateHeader( &$s, $rc_timestamp ) {
00294                 # Make date header if necessary
00295                 $date = $this->getLanguage()->userDate( $rc_timestamp, $this->getUser() );
00296                 if( $date != $this->lastdate ) {
00297                         if( $this->lastdate != '' ) {
00298                                 $s .= "</ul>\n";
00299                         }
00300                         $s .= Xml::element( 'h4', null, $date ) . "\n<ul class=\"special\">";
00301                         $this->lastdate = $date;
00302                         $this->rclistOpen = true;
00303                 }
00304         }
00305 
00311         public function insertLog( &$s, $title, $logtype ) {
00312                 $page = new LogPage( $logtype );
00313                 $logname = $page->getName()->escaped();
00314                 $s .= $this->msg( 'parentheses' )->rawParams( Linker::linkKnown( $title, $logname ) )->escaped();
00315         }
00316 
00322         public function insertDiffHist( &$s, &$rc, $unpatrolled ) {
00323                 # Diff link
00324                 if( $rc->mAttribs['rc_type'] == RC_NEW || $rc->mAttribs['rc_type'] == RC_LOG ) {
00325                         $diffLink = $this->message['diff'];
00326                 } elseif ( !self::userCan( $rc, Revision::DELETED_TEXT, $this->getUser() ) ) {
00327                         $diffLink = $this->message['diff'];
00328                 } else {
00329                         $query = array(
00330                                 'curid' => $rc->mAttribs['rc_cur_id'],
00331                                 'diff' => $rc->mAttribs['rc_this_oldid'],
00332                                 'oldid' => $rc->mAttribs['rc_last_oldid']
00333                         );
00334 
00335                         if( $unpatrolled ) {
00336                                 $query['rcid'] = $rc->mAttribs['rc_id'];
00337                         };
00338 
00339                         $diffLink = Linker::linkKnown(
00340                                 $rc->getTitle(),
00341                                 $this->message['diff'],
00342                                 array( 'tabindex' => $rc->counter ),
00343                                 $query
00344                         );
00345                 }
00346                 $diffhist = $diffLink . $this->message['pipe-separator'];
00347                 # History link
00348                 $diffhist .= Linker::linkKnown(
00349                         $rc->getTitle(),
00350                         $this->message['hist'],
00351                         array(),
00352                         array(
00353                                 'curid' => $rc->mAttribs['rc_cur_id'],
00354                                 'action' => 'history'
00355                         )
00356                 );
00357                 $s .= $this->msg( 'parentheses' )->rawParams( $diffhist )->escaped() . ' <span class="mw-changeslist-separator">. .</span> ';
00358         }
00359 
00366         public function insertArticleLink( &$s, &$rc, $unpatrolled, $watched ) {
00367                 # If it's a new article, there is no diff link, but if it hasn't been
00368                 # patrolled yet, we need to give users a way to do so
00369                 $params = array();
00370 
00371                 if ( $unpatrolled && $rc->mAttribs['rc_type'] == RC_NEW ) {
00372                         $params['rcid'] = $rc->mAttribs['rc_id'];
00373                 }
00374 
00375                 $articlelink = Linker::linkKnown(
00376                         $rc->getTitle(),
00377                         null,
00378                         array( 'class' => 'mw-changeslist-title' ),
00379                         $params
00380                 );
00381                 if( $this->isDeleted( $rc, Revision::DELETED_TEXT ) ) {
00382                         $articlelink = '<span class="history-deleted">' . $articlelink . '</span>';
00383                 }
00384                 # To allow for boldening pages watched by this user
00385                 $articlelink = "<span class=\"mw-title\">{$articlelink}</span>";
00386                 # RTL/LTR marker
00387                 $articlelink .= $this->getLanguage()->getDirMark();
00388 
00389                 wfRunHooks( 'ChangesListInsertArticleLink',
00390                         array( &$this, &$articlelink, &$s, &$rc, $unpatrolled, $watched ) );
00391 
00392                 $s .= " $articlelink";
00393         }
00394 
00402         public function getTimestamp( $rc ) {
00403                 return $this->message['semicolon-separator'] . '<span class="mw-changeslist-date">' .
00404                         $this->getLanguage()->userTime( $rc->mAttribs['rc_timestamp'], $this->getUser() ) . '</span> <span class="mw-changeslist-separator">. .</span> ';
00405         }
00406 
00413         public function insertTimestamp( &$s, $rc ) {
00414                 $s .= $this->getTimestamp( $rc );
00415         }
00416 
00423         public function insertUserRelatedLinks( &$s, &$rc ) {
00424                 if( $this->isDeleted( $rc, Revision::DELETED_USER ) ) {
00425                         $s .= ' <span class="history-deleted">' . $this->msg( 'rev-deleted-user' )->escaped() . '</span>';
00426                 } else {
00427                         $s .= $this->getLanguage()->getDirMark() . Linker::userLink( $rc->mAttribs['rc_user'],
00428                                 $rc->mAttribs['rc_user_text'] );
00429                         $s .= Linker::userToolLinks( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
00430                 }
00431         }
00432 
00439         public function insertLogEntry( $rc ) {
00440                 $formatter = LogFormatter::newFromRow( $rc->mAttribs );
00441                 $formatter->setContext( $this->getContext() );
00442                 $formatter->setShowUserToolLinks( true );
00443                 $mark = $this->getLanguage()->getDirMark();
00444                 return $formatter->getActionText() . " $mark" . $formatter->getComment();
00445         }
00446 
00452         public function insertComment( $rc ) {
00453                 if( $rc->mAttribs['rc_type'] != RC_MOVE && $rc->mAttribs['rc_type'] != RC_MOVE_OVER_REDIRECT ) {
00454                         if( $this->isDeleted( $rc, Revision::DELETED_COMMENT ) ) {
00455                                 return ' <span class="history-deleted">' . $this->msg( 'rev-deleted-comment' )->escaped() . '</span>';
00456                         } else {
00457                                 return Linker::commentBlock( $rc->mAttribs['rc_comment'], $rc->getTitle() );
00458                         }
00459                 }
00460                 return '';
00461         }
00462 
00467         public static function usePatrol() {
00468                 global $wgUser;
00469                 return $wgUser->useRCPatrol();
00470         }
00471 
00476         protected function numberofWatchingusers( $count ) {
00477                 static $cache = array();
00478                 if( $count > 0 ) {
00479                         if( !isset( $cache[$count] ) ) {
00480                                 $cache[$count] = $this->msg( 'number_of_watching_users_RCview' )->numParams( $count )->escaped();
00481                         }
00482                         return $cache[$count];
00483                 } else {
00484                         return '';
00485                 }
00486         }
00487 
00494         public static function isDeleted( $rc, $field ) {
00495                 return ( $rc->mAttribs['rc_deleted'] & $field ) == $field;
00496         }
00497 
00506         public static function userCan( $rc, $field, User $user = null ) {
00507                 if( $rc->mAttribs['rc_type'] == RC_LOG ) {
00508                         return LogEventsList::userCanBitfield( $rc->mAttribs['rc_deleted'], $field, $user );
00509                 } else {
00510                         return Revision::userCanBitfield( $rc->mAttribs['rc_deleted'], $field, $user );
00511                 }
00512         }
00513 
00519         protected function maybeWatchedLink( $link, $watched = false ) {
00520                 if( $watched ) {
00521                         return '<strong class="mw-watched">' . $link . '</strong>';
00522                 } else {
00523                         return '<span class="mw-rc-unwatched">' . $link . '</span>';
00524                 }
00525         }
00526 
00532         public function insertRollback( &$s, &$rc ) {
00533                 if( $rc->mAttribs['rc_type'] != RC_NEW && $rc->mAttribs['rc_this_oldid'] && $rc->mAttribs['rc_cur_id'] ) {
00534                         $page = $rc->getTitle();
00537                         if ( $this->getUser()->isAllowed( 'rollback' ) && $rc->mAttribs['page_latest'] == $rc->mAttribs['rc_this_oldid'] )
00538                         {
00539                                 $rev = new Revision( array(
00540                                         'title' => $page,
00541                                         'id' => $rc->mAttribs['rc_this_oldid'],
00542                                         'user' => $rc->mAttribs['rc_user'],
00543                                         'user_text' => $rc->mAttribs['rc_user_text'],
00544                                         'deleted' => $rc->mAttribs['rc_deleted']
00545                                 ) );
00546                                 $s .= ' '.Linker::generateRollback( $rev, $this->getContext() );
00547                         }
00548                 }
00549         }
00550 
00556         public function insertTags( &$s, &$rc, &$classes ) {
00557                 if ( empty( $rc->mAttribs['ts_tags'] ) )
00558                         return;
00559 
00560                 list( $tagSummary, $newClasses ) = ChangeTags::formatSummaryRow( $rc->mAttribs['ts_tags'], 'changeslist' );
00561                 $classes = array_merge( $classes, $newClasses );
00562                 $s .= ' ' . $tagSummary;
00563         }
00564 
00565         public function insertExtra( &$s, &$rc, &$classes ) {
00566                 // Empty, used for subclasses to add anything special.
00567         }
00568 
00569         protected function showAsUnpatrolled( RecentChange $rc ) {
00570                 $unpatrolled = false;
00571                 if ( !$rc->mAttribs['rc_patrolled'] ) {
00572                         if ( $this->getUser()->useRCPatrol() ) {
00573                                 $unpatrolled = true;
00574                         } elseif ( $this->getUser()->useNPPatrol() && $rc->mAttribs['rc_type'] == RC_NEW ) {
00575                                 $unpatrolled = true;
00576                         }
00577                 }
00578                 return $unpatrolled;
00579         }
00580 }
00581 
00585 class OldChangesList extends ChangesList {
00595         public function recentChangesLine( &$rc, $watched = false, $linenumber = null ) {
00596                 global $wgRCShowChangedSize;
00597                 wfProfileIn( __METHOD__ );
00598 
00599                 # Should patrol-related stuff be shown?
00600                 $unpatrolled = $this->showAsUnpatrolled( $rc );
00601 
00602                 $dateheader = ''; // $s now contains only <li>...</li>, for hooks' convenience.
00603                 $this->insertDateHeader( $dateheader, $rc->mAttribs['rc_timestamp'] );
00604 
00605                 $s = '';
00606                 $classes = array();
00607                 // use mw-line-even/mw-line-odd class only if linenumber is given (feature from bug 14468)
00608                 if( $linenumber ) {
00609                         if( $linenumber & 1 ) {
00610                                 $classes[] = 'mw-line-odd';
00611                         }
00612                         else {
00613                                 $classes[] = 'mw-line-even';
00614                         }
00615                 }
00616 
00617                 // Indicate watched status on the line to allow for more
00618                 // comprehensive styling.
00619                 $classes[] = $watched ? 'mw-changeslist-line-watched' : 'mw-changeslist-line-not-watched';
00620 
00621                 // Moved pages (very very old, not supported anymore)
00622                 if( $rc->mAttribs['rc_type'] == RC_MOVE || $rc->mAttribs['rc_type'] == RC_MOVE_OVER_REDIRECT ) {
00623                 // Log entries
00624                 } elseif( $rc->mAttribs['rc_log_type'] ) {
00625                         $logtitle = SpecialPage::getTitleFor( 'Log', $rc->mAttribs['rc_log_type'] );
00626                         $this->insertLog( $s, $logtitle, $rc->mAttribs['rc_log_type'] );
00627                 // Log entries (old format) or log targets, and special pages
00628                 } elseif( $rc->mAttribs['rc_namespace'] == NS_SPECIAL ) {
00629                         list( $name, $subpage ) = SpecialPageFactory::resolveAlias( $rc->mAttribs['rc_title'] );
00630                         if( $name == 'Log' ) {
00631                                 $this->insertLog( $s, $rc->getTitle(), $subpage );
00632                         }
00633                 // Regular entries
00634                 } else {
00635                         $this->insertDiffHist( $s, $rc, $unpatrolled );
00636                         # M, N, b and ! (minor, new, bot and unpatrolled)
00637                         $s .= $this->recentChangesFlags(
00638                                 array(
00639                                         'newpage' => $rc->mAttribs['rc_type'] == RC_NEW,
00640                                         'minor' => $rc->mAttribs['rc_minor'],
00641                                         'unpatrolled' => $unpatrolled,
00642                                         'bot' => $rc->mAttribs['rc_bot']
00643                                 ),
00644                                 ''
00645                         );
00646                         $this->insertArticleLink( $s, $rc, $unpatrolled, $watched );
00647                 }
00648                 # Edit/log timestamp
00649                 $this->insertTimestamp( $s, $rc );
00650                 # Bytes added or removed
00651                 if ( $wgRCShowChangedSize ) {
00652                         $cd = $this->formatCharacterDifference( $rc );
00653                         if ( $cd !== '' ) {
00654                                 $s .= $cd . '  <span class="mw-changeslist-separator">. .</span> ';
00655                         }
00656                 }
00657 
00658                 if ( $rc->mAttribs['rc_type'] == RC_LOG ) {
00659                         $s .= $this->insertLogEntry( $rc );
00660                 } else {
00661                         # User tool links
00662                         $this->insertUserRelatedLinks( $s, $rc );
00663                         # LTR/RTL direction mark
00664                         $s .= $this->getLanguage()->getDirMark();
00665                         $s .= $this->insertComment( $rc );
00666                 }
00667 
00668                 # Tags
00669                 $this->insertTags( $s, $rc, $classes );
00670                 # Rollback
00671                 $this->insertRollback( $s, $rc );
00672                 # For subclasses
00673                 $this->insertExtra( $s, $rc, $classes );
00674 
00675                 # How many users watch this page
00676                 if( $rc->numberofWatchingusers > 0 ) {
00677                         $s .= ' ' . $this->numberofWatchingusers( $rc->numberofWatchingusers );
00678                 }
00679 
00680                 if( $this->watchlist ) {
00681                         $classes[] = Sanitizer::escapeClass( 'watchlist-' . $rc->mAttribs['rc_namespace'] . '-' . $rc->mAttribs['rc_title'] );
00682                 }
00683 
00684                 if ( !wfRunHooks( 'OldChangesListRecentChangesLine', array( &$this, &$s, $rc, &$classes ) ) ) {
00685                         wfProfileOut( __METHOD__ );
00686                         return false;
00687                 }
00688 
00689                 wfProfileOut( __METHOD__ );
00690                 return "$dateheader<li class=\"" . implode( ' ', $classes ) . "\">" . $s . "</li>\n";
00691         }
00692 }
00693 
00697 class EnhancedChangesList extends ChangesList {
00698 
00699         protected $rc_cache;
00700 
00705         public function beginRecentChangesList() {
00706                 $this->rc_cache = array();
00707                 $this->rcMoveIndex = 0;
00708                 $this->rcCacheIndex = 0;
00709                 $this->lastdate = '';
00710                 $this->rclistOpen = false;
00711                 $this->getOutput()->addModuleStyles( 'mediawiki.special.changeslist' );
00712                 return '';
00713         }
00722         public function recentChangesLine( &$baseRC, $watched = false ) {
00723                 wfProfileIn( __METHOD__ );
00724 
00725                 # Create a specialised object
00726                 $rc = RCCacheEntry::newFromParent( $baseRC );
00727 
00728                 $curIdEq = array( 'curid' => $rc->mAttribs['rc_cur_id'] );
00729 
00730                 # If it's a new day, add the headline and flush the cache
00731                 $date = $this->getLanguage()->userDate( $rc->mAttribs['rc_timestamp'], $this->getUser() );
00732                 $ret = '';
00733                 if( $date != $this->lastdate ) {
00734                         # Process current cache
00735                         $ret = $this->recentChangesBlock();
00736                         $this->rc_cache = array();
00737                         $ret .= Xml::element( 'h4', null, $date ) . "\n";
00738                         $this->lastdate = $date;
00739                 }
00740 
00741                 # Should patrol-related stuff be shown?
00742                 $rc->unpatrolled = $this->showAsUnpatrolled( $rc );
00743 
00744                 $showdifflinks = true;
00745                 # Make article link
00746                 $type = $rc->mAttribs['rc_type'];
00747                 $logType = $rc->mAttribs['rc_log_type'];
00748                 // Page moves, very old style, not supported anymore
00749                 if( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
00750                 // New unpatrolled pages
00751                 } elseif( $rc->unpatrolled && $type == RC_NEW ) {
00752                         $clink = Linker::linkKnown( $rc->getTitle(), null, array(),
00753                                 array( 'rcid' => $rc->mAttribs['rc_id'] ) );
00754                 // Log entries
00755                 } elseif( $type == RC_LOG ) {
00756                         if( $logType ) {
00757                                 $logtitle = SpecialPage::getTitleFor( 'Log', $logType );
00758                                 $logpage = new LogPage( $logType );
00759                                 $logname = $logpage->getName()->escaped();
00760                                 $clink = $this->msg( 'parentheses' )->rawParams( Linker::linkKnown( $logtitle, $logname ) )->escaped();
00761                         } else {
00762                                 $clink = Linker::link( $rc->getTitle() );
00763                         }
00764                         $watched = false;
00765                 // Log entries (old format) and special pages
00766                 } elseif( $rc->mAttribs['rc_namespace'] == NS_SPECIAL ) {
00767                         wfDebug( "Unexpected special page in recentchanges\n" );
00768                         $clink = '';
00769                 // Edits
00770                 } else {
00771                         $clink = Linker::linkKnown( $rc->getTitle() );
00772                 }
00773 
00774                 # Don't show unusable diff links
00775                 if ( !ChangesList::userCan( $rc, Revision::DELETED_TEXT, $this->getUser() ) ) {
00776                         $showdifflinks = false;
00777                 }
00778 
00779                 $time = $this->getLanguage()->userTime( $rc->mAttribs['rc_timestamp'], $this->getUser() );
00780                 $rc->watched = $watched;
00781                 $rc->link = $clink;
00782                 $rc->timestamp = $time;
00783                 $rc->numberofWatchingusers = $baseRC->numberofWatchingusers;
00784 
00785                 # Make "cur" and "diff" links.  Do not use link(), it is too slow if
00786                 # called too many times (50% of CPU time on RecentChanges!).
00787                 $thisOldid = $rc->mAttribs['rc_this_oldid'];
00788                 $lastOldid = $rc->mAttribs['rc_last_oldid'];
00789                 if( $rc->unpatrolled ) {
00790                         $rcIdQuery = array( 'rcid' => $rc->mAttribs['rc_id'] );
00791                 } else {
00792                         $rcIdQuery = array();
00793                 }
00794                 $querycur = $curIdEq + array( 'diff' => '0', 'oldid' => $thisOldid );
00795                 $querydiff = $curIdEq + array( 'diff' => $thisOldid, 'oldid' =>
00796                         $lastOldid ) + $rcIdQuery;
00797 
00798                 if( !$showdifflinks ) {
00799                         $curLink = $this->message['cur'];
00800                         $diffLink = $this->message['diff'];
00801                 } elseif( in_array( $type, array( RC_NEW, RC_LOG, RC_MOVE, RC_MOVE_OVER_REDIRECT ) ) ) {
00802                         if ( $type != RC_NEW ) {
00803                                 $curLink = $this->message['cur'];
00804                         } else {
00805                                 $curUrl = htmlspecialchars( $rc->getTitle()->getLinkURL( $querycur ) );
00806                                 $curLink = "<a href=\"$curUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['cur']}</a>";
00807                         }
00808                         $diffLink = $this->message['diff'];
00809                 } else {
00810                         $diffUrl = htmlspecialchars( $rc->getTitle()->getLinkURL( $querydiff ) );
00811                         $curUrl = htmlspecialchars( $rc->getTitle()->getLinkURL( $querycur ) );
00812                         $diffLink = "<a href=\"$diffUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['diff']}</a>";
00813                         $curLink = "<a href=\"$curUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['cur']}</a>";
00814                 }
00815 
00816                 # Make "last" link
00817                 if( !$showdifflinks || !$lastOldid ) {
00818                         $lastLink = $this->message['last'];
00819                 } elseif( in_array( $type, array( RC_LOG, RC_MOVE, RC_MOVE_OVER_REDIRECT ) ) ) {
00820                         $lastLink = $this->message['last'];
00821                 } else {
00822                         $lastLink = Linker::linkKnown( $rc->getTitle(), $this->message['last'],
00823                                 array(), $curIdEq + array( 'diff' => $thisOldid, 'oldid' => $lastOldid ) + $rcIdQuery );
00824                 }
00825 
00826                 # Make user links
00827                 if( $this->isDeleted( $rc, Revision::DELETED_USER ) ) {
00828                         $rc->userlink = ' <span class="history-deleted">' . $this->msg( 'rev-deleted-user' )->escaped() . '</span>';
00829                 } else {
00830                         $rc->userlink = Linker::userLink( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
00831                         $rc->usertalklink = Linker::userToolLinks( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
00832                 }
00833 
00834                 $rc->lastlink = $lastLink;
00835                 $rc->curlink = $curLink;
00836                 $rc->difflink = $diffLink;
00837 
00838                 # Put accumulated information into the cache, for later display
00839                 # Page moves go on their own line
00840                 $title = $rc->getTitle();
00841                 $secureName = $title->getPrefixedDBkey();
00842                 if( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
00843                         # Use an @ character to prevent collision with page names
00844                         $this->rc_cache['@@' . ($this->rcMoveIndex++)] = array( $rc );
00845                 } else {
00846                         # Logs are grouped by type
00847                         if( $type == RC_LOG ) {
00848                                 $secureName = SpecialPage::getTitleFor( 'Log', $logType )->getPrefixedDBkey();
00849                         }
00850                         if( !isset( $this->rc_cache[$secureName] ) ) {
00851                                 $this->rc_cache[$secureName] = array();
00852                         }
00853 
00854                         array_push( $this->rc_cache[$secureName], $rc );
00855                 }
00856 
00857                 wfProfileOut( __METHOD__ );
00858 
00859                 return $ret;
00860         }
00861 
00866         protected function recentChangesBlockGroup( $block ) {
00867                 global $wgRCShowChangedSize;
00868 
00869                 wfProfileIn( __METHOD__ );
00870 
00871                 # Add the namespace and title of the block as part of the class
00872                 $classes = array( 'mw-collapsible', 'mw-collapsed', 'mw-enhanced-rc' );
00873                 if ( $block[0]->mAttribs['rc_log_type'] ) {
00874                         # Log entry
00875                         $classes[] = Sanitizer::escapeClass( 'mw-changeslist-log-'
00876                                         . $block[0]->mAttribs['rc_log_type'] );
00877                 } else {
00878                         $classes[] = Sanitizer::escapeClass( 'mw-changeslist-ns'
00879                                         . $block[0]->mAttribs['rc_namespace'] . '-' . $block[0]->mAttribs['rc_title'] );
00880                 }
00881                 $classes[] = $block[0]->watched ? 'mw-changeslist-line-watched' : 'mw-changeslist-line-not-watched';
00882                 $r = Html::openElement( 'table', array( 'class' => $classes ) ) .
00883                         Html::openElement( 'tr' );
00884 
00885                 # Collate list of users
00886                 $userlinks = array();
00887                 # Other properties
00888                 $unpatrolled = false;
00889                 $isnew = false;
00890                 $allBots = true;
00891                 $allMinors = true;
00892                 $curId = $currentRevision = 0;
00893                 # Some catalyst variables...
00894                 $namehidden = true;
00895                 $allLogs = true;
00896                 foreach( $block as $rcObj ) {
00897                         $oldid = $rcObj->mAttribs['rc_last_oldid'];
00898                         if( $rcObj->mAttribs['rc_type'] == RC_NEW ) {
00899                                 $isnew = true;
00900                         }
00901                         // If all log actions to this page were hidden, then don't
00902                         // give the name of the affected page for this block!
00903                         if( !$this->isDeleted( $rcObj, LogPage::DELETED_ACTION ) ) {
00904                                 $namehidden = false;
00905                         }
00906                         $u = $rcObj->userlink;
00907                         if( !isset( $userlinks[$u] ) ) {
00908                                 $userlinks[$u] = 0;
00909                         }
00910                         if( $rcObj->unpatrolled ) {
00911                                 $unpatrolled = true;
00912                         }
00913                         if( $rcObj->mAttribs['rc_type'] != RC_LOG ) {
00914                                 $allLogs = false;
00915                         }
00916                         # Get the latest entry with a page_id and oldid
00917                         # since logs may not have these.
00918                         if( !$curId && $rcObj->mAttribs['rc_cur_id'] ) {
00919                                 $curId = $rcObj->mAttribs['rc_cur_id'];
00920                         }
00921                         if( !$currentRevision && $rcObj->mAttribs['rc_this_oldid'] ) {
00922                                 $currentRevision = $rcObj->mAttribs['rc_this_oldid'];
00923                         }
00924 
00925                         if( !$rcObj->mAttribs['rc_bot'] ) {
00926                                 $allBots = false;
00927                         }
00928                         if( !$rcObj->mAttribs['rc_minor'] ) {
00929                                 $allMinors = false;
00930                         }
00931 
00932                         $userlinks[$u]++;
00933                 }
00934 
00935                 # Sort the list and convert to text
00936                 krsort( $userlinks );
00937                 asort( $userlinks );
00938                 $users = array();
00939                 foreach( $userlinks as $userlink => $count) {
00940                         $text = $userlink;
00941                         $text .= $this->getLanguage()->getDirMark();
00942                         if( $count > 1 ) {
00943                                 $text .= ' ' . $this->msg( 'parentheses' )->rawParams( $this->getLanguage()->formatNum( $count ) . '×' )->escaped();
00944                         }
00945                         array_push( $users, $text );
00946                 }
00947 
00948                 $users = ' <span class="changedby">'
00949                         . $this->msg( 'brackets' )->rawParams(
00950                                 implode( $this->message['semicolon-separator'], $users )
00951                         )->escaped() . '</span>';
00952 
00953                 $tl = '<span class="mw-collapsible-toggle mw-enhancedchanges-arrow mw-enhancedchanges-arrow-space"></span>';
00954                 $r .= "<td>$tl</td>";
00955 
00956                 # Main line
00957                 $r .= '<td class="mw-enhanced-rc">' . $this->recentChangesFlags( array(
00958                         'newpage' => $isnew, # show, when one have this flag
00959                         'minor' => $allMinors, # show only, when all have this flag
00960                         'unpatrolled' => $unpatrolled, # show, when one have this flag
00961                         'bot' => $allBots, # show only, when all have this flag
00962                 ) );
00963 
00964                 # Timestamp
00965                 $r .= '&#160;' . $block[0]->timestamp . '&#160;</td><td>';
00966 
00967                 # Article link
00968                 if( $namehidden ) {
00969                         $r .= ' <span class="history-deleted">' . $this->msg( 'rev-deleted-event' )->escaped() . '</span>';
00970                 } elseif( $allLogs ) {
00971                         $r .= $this->maybeWatchedLink( $block[0]->link, $block[0]->watched );
00972                 } else {
00973                         $this->insertArticleLink( $r, $block[0], $block[0]->unpatrolled, $block[0]->watched );
00974                 }
00975 
00976                 $r .= $this->getLanguage()->getDirMark();
00977 
00978                 $queryParams['curid'] = $curId;
00979                 # Changes message
00980                 $n = count( $block );
00981                 static $nchanges = array();
00982                 if ( !isset( $nchanges[$n] ) ) {
00983                         $nchanges[$n] = $this->msg( 'nchanges' )->numParams( $n )->escaped();
00984                 }
00985                 # Total change link
00986                 $r .= ' ';
00987                 $logtext = '';
00988                 if( !$allLogs ) {
00989                         if( !ChangesList::userCan( $rcObj, Revision::DELETED_TEXT, $this->getUser() ) ) {
00990                                 $logtext .= $nchanges[$n];
00991                         } elseif( $isnew ) {
00992                                 $logtext .= $nchanges[$n];
00993                         } else {
00994                                 $params = $queryParams;
00995                                 $params['diff'] = $currentRevision;
00996                                 $params['oldid'] = $oldid;
00997 
00998                                 $logtext .= Linker::link(
00999                                         $block[0]->getTitle(),
01000                                         $nchanges[$n],
01001                                         array(),
01002                                         $params,
01003                                         array( 'known', 'noclasses' )
01004                                 );
01005                         }
01006                 }
01007 
01008                 # History
01009                 if( $allLogs ) {
01010                         // don't show history link for logs
01011                 } elseif( $namehidden || !$block[0]->getTitle()->exists() ) {
01012                         $logtext .= $this->message['pipe-separator'] . $this->message['hist'];
01013                 } else {
01014                         $params = $queryParams;
01015                         $params['action'] = 'history';
01016 
01017                         $logtext .= $this->message['pipe-separator'] .
01018                                 Linker::linkKnown(
01019                                         $block[0]->getTitle(),
01020                                         $this->message['hist'],
01021                                         array(),
01022                                         $params
01023                                 );
01024                 }
01025 
01026                 if( $logtext !== '' ) {
01027                         $r .= $this->msg( 'parentheses' )->rawParams( $logtext )->escaped();
01028                 }
01029 
01030                 $r .= ' <span class="mw-changeslist-separator">. .</span> ';
01031 
01032                 # Character difference (does not apply if only log items)
01033                 if( $wgRCShowChangedSize && !$allLogs ) {
01034                         $last = 0;
01035                         $first = count( $block ) - 1;
01036                         # Some events (like logs) have an "empty" size, so we need to skip those...
01037                         while( $last < $first && $block[$last]->mAttribs['rc_new_len'] === null ) {
01038                                 $last++;
01039                         }
01040                         while( $first > $last && $block[$first]->mAttribs['rc_old_len'] === null ) {
01041                                 $first--;
01042                         }
01043                         # Get net change
01044                         $chardiff = $this->formatCharacterDifference( $block[$first], $block[$last] );
01045 
01046                         if( $chardiff == '' ) {
01047                                 $r .= ' ';
01048                         } else {
01049                                 $r .= ' ' . $chardiff. ' <span class="mw-changeslist-separator">. .</span> ';
01050                         }
01051                 }
01052 
01053                 $r .= $users;
01054                 $r .= $this->numberofWatchingusers( $block[0]->numberofWatchingusers );
01055 
01056                 # Sub-entries
01057                 foreach( $block as $rcObj ) {
01058                         # Classes to apply -- TODO implement
01059                         $classes = array();
01060                         $type = $rcObj->mAttribs['rc_type'];
01061 
01062                         $r .= '<tr><td></td><td class="mw-enhanced-rc">';
01063                         $r .= $this->recentChangesFlags( array(
01064                                 'newpage' => $type == RC_NEW,
01065                                 'minor' => $rcObj->mAttribs['rc_minor'],
01066                                 'unpatrolled' => $rcObj->unpatrolled,
01067                                 'bot' => $rcObj->mAttribs['rc_bot'],
01068                         ) );
01069                         $r .= '&#160;</td><td class="mw-enhanced-rc-nested"><span class="mw-enhanced-rc-time">';
01070 
01071                         $params = $queryParams;
01072 
01073                         if( $rcObj->mAttribs['rc_this_oldid'] != 0 ) {
01074                                 $params['oldid'] = $rcObj->mAttribs['rc_this_oldid'];
01075                         }
01076 
01077                         # Log timestamp
01078                         if( $type == RC_LOG ) {
01079                                 $link = $rcObj->timestamp;
01080                         # Revision link
01081                         } elseif( !ChangesList::userCan( $rcObj, Revision::DELETED_TEXT, $this->getUser() ) ) {
01082                                 $link = '<span class="history-deleted">' . $rcObj->timestamp . '</span> ';
01083                         } else {
01084                                 if ( $rcObj->unpatrolled && $type == RC_NEW) {
01085                                         $params['rcid'] = $rcObj->mAttribs['rc_id'];
01086                                 }
01087 
01088                                 $link = Linker::linkKnown(
01089                                                 $rcObj->getTitle(),
01090                                                 $rcObj->timestamp,
01091                                                 array(),
01092                                                 $params
01093                                         );
01094                                 if( $this->isDeleted( $rcObj, Revision::DELETED_TEXT ) ) {
01095                                         $link = '<span class="history-deleted">' . $link . '</span> ';
01096                                 }
01097                         }
01098                         $r .= $link . '</span>';
01099 
01100                         if ( !$type == RC_LOG || $type == RC_NEW ) {
01101                                 $r .= ' ' . $this->msg( 'parentheses' )->rawParams( $rcObj->curlink . $this->message['pipe-separator'] . $rcObj->lastlink )->escaped();
01102                         }
01103                         $r .= ' <span class="mw-changeslist-separator">. .</span> ';
01104 
01105                         # Character diff
01106                         if ( $wgRCShowChangedSize ) {
01107                                 $cd = $this->formatCharacterDifference( $rcObj );
01108                                 if ( $cd !== '' ) {
01109                                         $r .= $cd . ' <span class="mw-changeslist-separator">. .</span> ';
01110                                 }
01111                         }
01112 
01113                         if ( $rcObj->mAttribs['rc_type'] == RC_LOG ) {
01114                                 $r .= $this->insertLogEntry( $rcObj );
01115                         } else {
01116                                 # User links
01117                                 $r .= $rcObj->userlink;
01118                                 $r .= $rcObj->usertalklink;
01119                                 $r .= $this->insertComment( $rcObj );
01120                         }
01121 
01122                         # Rollback
01123                         $this->insertRollback( $r, $rcObj );
01124                         # Tags
01125                         $this->insertTags( $r, $rcObj, $classes );
01126 
01127                         $r .= "</td></tr>\n";
01128                 }
01129                 $r .= "</table>\n";
01130 
01131                 $this->rcCacheIndex++;
01132 
01133                 wfProfileOut( __METHOD__ );
01134 
01135                 return $r;
01136         }
01137 
01145         protected function arrow( $dir, $alt = '', $title = '' ) {
01146                 global $wgStylePath;
01147                 $encUrl = htmlspecialchars( $wgStylePath . '/common/images/Arr_' . $dir . '.png' );
01148                 $encAlt = htmlspecialchars( $alt );
01149                 $encTitle = htmlspecialchars( $title );
01150                 return "<img src=\"$encUrl\" width=\"12\" height=\"12\" alt=\"$encAlt\" title=\"$encTitle\" />";
01151         }
01152 
01158         protected function sideArrow() {
01159                 $dir = $this->getLanguage()->isRTL() ? 'l' : 'r';
01160                 return $this->arrow( $dir, '+', $this->msg( 'rc-enhanced-expand' )->text() );
01161         }
01162 
01168         protected function downArrow() {
01169                 return $this->arrow( 'd', '-', $this->msg( 'rc-enhanced-hide' )->text() );
01170         }
01171 
01176         protected function spacerArrow() {
01177                 return $this->arrow( '', codepointToUtf8( 0xa0 ) ); // non-breaking space
01178         }
01179 
01186         protected function recentChangesBlockLine( $rcObj ) {
01187                 global $wgRCShowChangedSize;
01188 
01189                 wfProfileIn( __METHOD__ );
01190                 $query['curid'] = $rcObj->mAttribs['rc_cur_id'];
01191 
01192                 $type = $rcObj->mAttribs['rc_type'];
01193                 $logType = $rcObj->mAttribs['rc_log_type'];
01194                 $classes = array( 'mw-enhanced-rc' );
01195                 if( $logType ) {
01196                         # Log entry
01197                         $classes[] = Sanitizer::escapeClass( 'mw-changeslist-log-' . $logType );
01198                 } else {
01199                         $classes[] = Sanitizer::escapeClass( 'mw-changeslist-ns' .
01200                                         $rcObj->mAttribs['rc_namespace'] . '-' . $rcObj->mAttribs['rc_title'] );
01201                 }
01202                 $classes[] = $rcObj->watched ? 'mw-changeslist-line-watched' : 'mw-changeslist-line-not-watched';
01203                 $r = Html::openElement( 'table', array( 'class' => $classes ) ) .
01204                         Html::openElement( 'tr' );
01205 
01206                 $r .= '<td class="mw-enhanced-rc"><span class="mw-enhancedchanges-arrow-space"></span>';
01207                 # Flag and Timestamp
01208                 if( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
01209                         $r .= '&#160;&#160;&#160;&#160;'; // 4 flags -> 4 spaces
01210                 } else {
01211                         $r .= $this->recentChangesFlags( array(
01212                                 'newpage' => $type == RC_NEW,
01213                                 'minor' => $rcObj->mAttribs['rc_minor'],
01214                                 'unpatrolled' => $rcObj->unpatrolled,
01215                                 'bot' => $rcObj->mAttribs['rc_bot'],
01216                         ) );
01217                 }
01218                 $r .= '&#160;' . $rcObj->timestamp . '&#160;</td><td>';
01219                 # Article or log link
01220                 if( $logType ) {
01221                         $logPage = new LogPage( $logType );
01222                         $logTitle = SpecialPage::getTitleFor( 'Log', $logType );
01223                         $logName = $logPage->getName()->escaped();
01224                         $r .= $this->msg( 'parentheses' )->rawParams( Linker::linkKnown( $logTitle, $logName ) )->escaped();
01225                 } else {
01226                         $this->insertArticleLink( $r, $rcObj, $rcObj->unpatrolled, $rcObj->watched );
01227                 }
01228                 # Diff and hist links
01229                 if ( $type != RC_LOG ) {
01230                         $query['action'] = 'history';
01231                         $r .= ' ' . $this->msg( 'parentheses' )->rawParams( $rcObj->difflink . $this->message['pipe-separator'] . Linker::linkKnown(
01232                                 $rcObj->getTitle(),
01233                                 $this->message['hist'],
01234                                 array(),
01235                                 $query
01236                         ) )->escaped();
01237                 }
01238                 $r .= ' <span class="mw-changeslist-separator">. .</span> ';
01239                 # Character diff
01240                 if ( $wgRCShowChangedSize ) {
01241                         $cd = $this->formatCharacterDifference( $rcObj );
01242                         if ( $cd !== '' ) {
01243                                 $r .= $cd . ' <span class="mw-changeslist-separator">. .</span> ';
01244                         }
01245                 }
01246 
01247                 if ( $type == RC_LOG ) {
01248                         $r .= $this->insertLogEntry( $rcObj );
01249                 } else {
01250                         $r .= ' ' . $rcObj->userlink . $rcObj->usertalklink;
01251                         $r .= $this->insertComment( $rcObj );
01252                         $this->insertRollback( $r, $rcObj );
01253                 }
01254 
01255                 # Tags
01256                 $this->insertTags( $r, $rcObj, $classes );
01257                 # Show how many people are watching this if enabled
01258                 $r .= $this->numberofWatchingusers( $rcObj->numberofWatchingusers );
01259 
01260                 $r .= "</td></tr></table>\n";
01261 
01262                 wfProfileOut( __METHOD__ );
01263 
01264                 return $r;
01265         }
01266 
01273         protected function recentChangesBlock() {
01274                 if( count ( $this->rc_cache ) == 0 ) {
01275                         return '';
01276                 }
01277 
01278                 wfProfileIn( __METHOD__ );
01279 
01280                 $blockOut = '';
01281                 foreach( $this->rc_cache as $block ) {
01282                         if( count( $block ) < 2 ) {
01283                                 $blockOut .= $this->recentChangesBlockLine( array_shift( $block ) );
01284                         } else {
01285                                 $blockOut .= $this->recentChangesBlockGroup( $block );
01286                         }
01287                 }
01288 
01289                 wfProfileOut( __METHOD__ );
01290 
01291                 return '<div>' . $blockOut . '</div>';
01292         }
01293 
01299         public function endRecentChangesList() {
01300                 return $this->recentChangesBlock() . parent::endRecentChangesList();
01301         }
01302 
01303 }