includes/changes/EnhancedChangesList.php

   1 <?php
   2 /**
   3  * Generates a list of changes using an Enhanced system (uses javascript).
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  */
  22
  23 class EnhancedChangesList extends ChangesList {
  24
  25         protected $rc_cache;
  26
  27         /**
  28          * Add the JavaScript file for enhanced changeslist
  29          * @return String
  30          */
  31         public function beginRecentChangesList() {
  32                 $this->rc_cache = array();
  33                 $this->rcMoveIndex = 0;
  34                 $this->rcCacheIndex = 0;
  35                 $this->lastdate = '';
  36                 $this->rclistOpen = false;
  37                 $this->getOutput()->addModuleStyles( array(
  38                         'mediawiki.special.changeslist',
  39                         'mediawiki.special.changeslist.enhanced',
  40                 ) );
  41                 $this->getOutput()->addModules( array(
  42                         'jquery.makeCollapsible',
  43                         'mediawiki.icon',
  44                 ) );
  45
  46                 return '';
  47         }
  48
  49         /**
  50          * Format a line for enhanced recentchange (aka with javascript and block of lines).
  51          *
  52          * @param $baseRC RecentChange
  53          * @param $watched bool
  54          *
  55          * @return string
  56          */
  57         public function recentChangesLine( &$baseRC, $watched = false ) {
  58                 wfProfileIn( __METHOD__ );
  59
  60                 # Create a specialised object
  61                 $cacheEntry = RCCacheEntry::newFromParent( $baseRC );
  62
  63                 $curIdEq = array( 'curid' => $cacheEntry->mAttribs['rc_cur_id'] );
  64
  65                 # If it's a new day, add the headline and flush the cache
  66                 $date = $this->getLanguage()->userDate(
  67                         $cacheEntry->mAttribs['rc_timestamp'],
  68                         $this->getUser()
  69                 );
  70
  71                 $ret = '';
  72
  73                 if ( $date != $this->lastdate ) {
  74                         # Process current cache
  75                         $ret = $this->recentChangesBlock();
  76                         $this->rc_cache = array();
  77                         $ret .= Xml::element( 'h4', null, $date ) . "\n";
  78                         $this->lastdate = $date;
  79                 }
  80
  81                 # Should patrol-related stuff be shown?
  82                 $cacheEntry->unpatrolled = $this->showAsUnpatrolled( $cacheEntry );
  83
  84                 $showdifflinks = true;
  85
  86                 # Make article link
  87                 $type = $cacheEntry->mAttribs['rc_type'];
  88                 $logType = $cacheEntry->mAttribs['rc_log_type'];
  89
  90                 // Page moves, very old style, not supported anymore
  91                 if ( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
  92                 // New unpatrolled pages
  93                 } elseif ( $cacheEntry->unpatrolled && $type == RC_NEW ) {
  94                         $clink = Linker::linkKnown( $cacheEntry->getTitle() );
  95                 // Log entries
  96                 } elseif ( $type == RC_LOG ) {
  97                         if ( $logType ) {
  98                                 $logtitle = SpecialPage::getTitleFor( 'Log', $logType );
  99                                 $logpage = new LogPage( $logType );
 100                                 $logname = $logpage->getName()->escaped();
 101                                 $clink = $this->msg( 'parentheses' )
 102                                         ->rawParams( Linker::linkKnown( $logtitle, $logname ) )->escaped();
 103                         } else {
 104                                 $clink = Linker::link( $cacheEntry->getTitle() );
 105                         }
 106                         $watched = false;
 107                 // Log entries (old format) and special pages
 108                 } elseif ( $cacheEntry->mAttribs['rc_namespace'] == NS_SPECIAL ) {
 109                         wfDebug( "Unexpected special page in recentchanges\n" );
 110                         $clink = '';
 111                 // Edits
 112                 } else {
 113                         $clink = Linker::linkKnown( $cacheEntry->getTitle() );
 114                 }
 115
 116                 # Don't show unusable diff links
 117                 if ( !ChangesList::userCan( $cacheEntry, Revision::DELETED_TEXT, $this->getUser() ) ) {
 118                         $showdifflinks = false;
 119                 }
 120
 121                 $time = $this->getLanguage()->userTime( $cacheEntry->mAttribs['rc_timestamp'], $this->getUser() );
 122
 123                 $cacheEntry->watched = $watched;
 124                 $cacheEntry->link = $clink;
 125                 $cacheEntry->timestamp = $time;
 126                 $cacheEntry->numberofWatchingusers = $baseRC->numberofWatchingusers;
 127
 128                 # Make "cur" and "diff" links.  Do not use link(), it is too slow if
 129                 # called too many times (50% of CPU time on RecentChanges!).
 130                 $thisOldid = $cacheEntry->mAttribs['rc_this_oldid'];
 131                 $lastOldid = $cacheEntry->mAttribs['rc_last_oldid'];
 132
 133                 $querycur = $curIdEq + array( 'diff' => '0', 'oldid' => $thisOldid );
 134                 $querydiff = $curIdEq + array( 'diff' => $thisOldid, 'oldid' => $lastOldid );
 135
 136                 if ( !$showdifflinks ) {
 137                         $curLink = $this->message['cur'];
 138                         $diffLink = $this->message['diff'];
 139                 } elseif ( in_array( $type, array( RC_NEW, RC_LOG, RC_MOVE, RC_MOVE_OVER_REDIRECT ) ) ) {
 140                         if ( $type != RC_NEW ) {
 141                                 $curLink = $this->message['cur'];
 142                         } else {
 143                                 $curUrl = htmlspecialchars( $cacheEntry->getTitle()->getLinkURL( $querycur ) );
 144                                 $curLink = "<a href=\"$curUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['cur']}</a>";
 145                         }
 146                         $diffLink = $this->message['diff'];
 147                 } else {
 148                         $diffUrl = htmlspecialchars( $cacheEntry->getTitle()->getLinkURL( $querydiff ) );
 149                         $curUrl = htmlspecialchars( $cacheEntry->getTitle()->getLinkURL( $querycur ) );
 150                         $diffLink = "<a href=\"$diffUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['diff']}</a>";
 151                         $curLink = "<a href=\"$curUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['cur']}</a>";
 152                 }
 153
 154                 # Make "last" link
 155                 if ( !$showdifflinks || !$lastOldid ) {
 156                         $lastLink = $this->message['last'];
 157                 } elseif ( in_array( $type, array( RC_LOG, RC_MOVE, RC_MOVE_OVER_REDIRECT ) ) ) {
 158                         $lastLink = $this->message['last'];
 159                 } else {
 160                         $lastLink = Linker::linkKnown( $cacheEntry->getTitle(), $this->message['last'],
 161                                 array(), $curIdEq + array( 'diff' => $thisOldid, 'oldid' => $lastOldid ) );
 162                 }
 163
 164                 # Make user links
 165                 if ( $this->isDeleted( $cacheEntry, Revision::DELETED_USER ) ) {
 166                         $cacheEntry->userlink = ' <span class="history-deleted">' .
 167                                 $this->msg( 'rev-deleted-user' )->escaped() . '</span>';
 168                 } else {
 169                         $cacheEntry->userlink = Linker::userLink(
 170                                 $cacheEntry->mAttribs['rc_user'],
 171                                 $cacheEntry->mAttribs['rc_user_text']
 172                         );
 173
 174                         $cacheEntry->usertalklink = Linker::userToolLinks(
 175                                 $cacheEntry->mAttribs['rc_user'],
 176                                 $cacheEntry->mAttribs['rc_user_text']
 177                         );
 178                 }
 179
 180                 $cacheEntry->lastlink = $lastLink;
 181                 $cacheEntry->curlink = $curLink;
 182                 $cacheEntry->difflink = $diffLink;
 183
 184                 # Put accumulated information into the cache, for later display
 185                 # Page moves go on their own line
 186                 $title = $cacheEntry->getTitle();
 187                 $secureName = $title->getPrefixedDBkey();
 188
 189                 if ( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
 190                         # Use an @ character to prevent collision with page names
 191                         $this->rc_cache['@@' . ( $this->rcMoveIndex++ )] = array( $cacheEntry );
 192                 } else {
 193                         # Logs are grouped by type
 194                         if ( $type == RC_LOG ) {
 195                                 $secureName = SpecialPage::getTitleFor( 'Log', $logType )->getPrefixedDBkey();
 196                         }
 197                         if ( !isset( $this->rc_cache[$secureName] ) ) {
 198                                 $this->rc_cache[$secureName] = array();
 199                         }
 200
 201                         array_push( $this->rc_cache[$secureName], $cacheEntry );
 202                 }
 203
 204                 wfProfileOut( __METHOD__ );
 205
 206                 return $ret;
 207         }
 208
 209         /**
 210          * Enhanced RC group
 211          * @return string
 212          */
 213         protected function recentChangesBlockGroup( $block ) {
 214                 global $wgRCShowChangedSize;
 215
 216                 wfProfileIn( __METHOD__ );
 217
 218                 # Add the namespace and title of the block as part of the class
 219                 $classes = array( 'mw-collapsible', 'mw-collapsed', 'mw-enhanced-rc' );
 220                 if ( $block[0]->mAttribs['rc_log_type'] ) {
 221                         # Log entry
 222                         $classes[] = Sanitizer::escapeClass( 'mw-changeslist-log-'
 223                                 . $block[0]->mAttribs['rc_log_type'] . '-' . $block[0]->mAttribs['rc_title'] );
 224                 } else {
 225                         $classes[] = Sanitizer::escapeClass( 'mw-changeslist-ns'
 226                                 . $block[0]->mAttribs['rc_namespace'] . '-' . $block[0]->mAttribs['rc_title'] );
 227                 }
 228                 $classes[] = $block[0]->watched && $block[0]->mAttribs['rc_timestamp'] >= $block[0]->watched
 229                         ? 'mw-changeslist-line-watched' : 'mw-changeslist-line-not-watched';
 230                 $r = Html::openElement( 'table', array( 'class' => $classes ) ) .
 231                         Html::openElement( 'tr' );
 232
 233                 # Collate list of users
 234                 $userlinks = array();
 235                 # Other properties
 236                 $unpatrolled = false;
 237                 $isnew = false;
 238                 $allBots = true;
 239                 $allMinors = true;
 240                 $curId = $currentRevision = 0;
 241                 # Some catalyst variables...
 242                 $namehidden = true;
 243                 $allLogs = true;
 244                 foreach ( $block as $rcObj ) {
 245                         $oldid = $rcObj->mAttribs['rc_last_oldid'];
 246                         if ( $rcObj->mAttribs['rc_type'] == RC_NEW ) {
 247                                 $isnew = true;
 248                         }
 249                         // If all log actions to this page were hidden, then don't
 250                         // give the name of the affected page for this block!
 251                         if ( !$this->isDeleted( $rcObj, LogPage::DELETED_ACTION ) ) {
 252                                 $namehidden = false;
 253                         }
 254                         $u = $rcObj->userlink;
 255                         if ( !isset( $userlinks[$u] ) ) {
 256                                 $userlinks[$u] = 0;
 257                         }
 258                         if ( $rcObj->unpatrolled ) {
 259                                 $unpatrolled = true;
 260                         }
 261                         if ( $rcObj->mAttribs['rc_type'] != RC_LOG ) {
 262                                 $allLogs = false;
 263                         }
 264                         # Get the latest entry with a page_id and oldid
 265                         # since logs may not have these.
 266                         if ( !$curId && $rcObj->mAttribs['rc_cur_id'] ) {
 267                                 $curId = $rcObj->mAttribs['rc_cur_id'];
 268                         }
 269                         if ( !$currentRevision && $rcObj->mAttribs['rc_this_oldid'] ) {
 270                                 $currentRevision = $rcObj->mAttribs['rc_this_oldid'];
 271                         }
 272
 273                         if ( !$rcObj->mAttribs['rc_bot'] ) {
 274                                 $allBots = false;
 275                         }
 276                         if ( !$rcObj->mAttribs['rc_minor'] ) {
 277                                 $allMinors = false;
 278                         }
 279
 280                         $userlinks[$u]++;
 281                 }
 282
 283                 # Sort the list and convert to text
 284                 krsort( $userlinks );
 285                 asort( $userlinks );
 286                 $users = array();
 287                 foreach ( $userlinks as $userlink => $count ) {
 288                         $text = $userlink;
 289                         $text .= $this->getLanguage()->getDirMark();
 290                         if ( $count > 1 ) {
 291                                 // @todo FIXME: Hardcoded '×'. Should be a message.
 292                                 $formattedCount = $this->getLanguage()->formatNum( $count ) . '×';
 293                                 $text .= ' ' . $this->msg( 'parentheses' )->rawParams( $formattedCount )->escaped();
 294                         }
 295                         array_push( $users, $text );
 296                 }
 297
 298                 $users = ' <span class="changedby">'
 299                         . $this->msg( 'brackets' )->rawParams(
 300                                 implode( $this->message['semicolon-separator'], $users )
 301                         )->escaped() . '</span>';
 302
 303                 $tl = '<span class="mw-collapsible-toggle mw-collapsible-arrow ' .
 304                         'mw-enhancedchanges-arrow mw-enhancedchanges-arrow-space"></span>';
 305                 $r .= "<td>$tl</td>";
 306
 307                 # Main line
 308                 $r .= '<td class="mw-enhanced-rc">' . $this->recentChangesFlags( array(
 309                         'newpage' => $isnew, # show, when one have this flag
 310                         'minor' => $allMinors, # show only, when all have this flag
 311                         'unpatrolled' => $unpatrolled, # show, when one have this flag
 312                         'bot' => $allBots, # show only, when all have this flag
 313                 ) );
 314
 315                 # Timestamp
 316                 $r .= '&#160;' . $block[0]->timestamp . '&#160;</td><td>';
 317
 318                 # Article link
 319                 if ( $namehidden ) {
 320                         $r .= ' <span class="history-deleted">' .
 321                                 $this->msg( 'rev-deleted-event' )->escaped() . '</span>';
 322                 } elseif ( $allLogs ) {
 323                         $r .= $this->maybeWatchedLink( $block[0]->link, $block[0]->watched );
 324                 } else {
 325                         $this->insertArticleLink( $r, $block[0], $block[0]->unpatrolled, $block[0]->watched );
 326                 }
 327
 328                 $r .= $this->getLanguage()->getDirMark();
 329
 330                 $queryParams['curid'] = $curId;
 331
 332                 # Changes message
 333                 static $nchanges = array();
 334                 static $sinceLastVisitMsg = array();
 335
 336                 $n = count( $block );
 337                 if ( !isset( $nchanges[$n] ) ) {
 338                         $nchanges[$n] = $this->msg( 'nchanges' )->numParams( $n )->escaped();
 339                 }
 340
 341                 $sinceLast = 0;
 342                 $unvisitedOldid = null;
 343                 foreach ( $block as $rcObj ) {
 344                         // Same logic as below inside main foreach
 345                         if ( $rcObj->watched && $rcObj->mAttribs['rc_timestamp'] >= $rcObj->watched ) {
 346                                 $sinceLast++;
 347                                 $unvisitedOldid = $rcObj->mAttribs['rc_last_oldid'];
 348                         }
 349                 }
 350                 if ( !isset( $sinceLastVisitMsg[$sinceLast] ) ) {
 351                         $sinceLastVisitMsg[$sinceLast] =
 352                                 $this->msg( 'enhancedrc-since-last-visit' )->numParams( $sinceLast )->escaped();
 353                 }
 354
 355                 # Total change link
 356                 $r .= ' ';
 357                 $logtext = '';
 358                 if ( !$allLogs ) {
 359                         if ( !ChangesList::userCan( $rcObj, Revision::DELETED_TEXT, $this->getUser() ) ) {
 360                                 $logtext .= $nchanges[$n];
 361                         } elseif ( $isnew ) {
 362                                 $logtext .= $nchanges[$n];
 363                         } else {
 364                                 $logtext .= Linker::link(
 365                                         $block[0]->getTitle(),
 366                                         $nchanges[$n],
 367                                         array(),
 368                                         $queryParams + array(
 369                                                 'diff' => $currentRevision,
 370                                                 'oldid' => $oldid,
 371                                         ),
 372                                         array( 'known', 'noclasses' )
 373                                 );
 374                                 if ( $sinceLast > 0 && $sinceLast < $n ) {
 375                                         $logtext .= $this->message['pipe-separator'] . Linker::link(
 376                                                 $block[0]->getTitle(),
 377                                                 $sinceLastVisitMsg[$sinceLast],
 378                                                 array(),
 379                                                 $queryParams + array(
 380                                                         'diff' => $currentRevision,
 381                                                         'oldid' => $unvisitedOldid,
 382                                                 ),
 383                                                 array( 'known', 'noclasses' )
 384                                         );
 385                                 }
 386                         }
 387                 }
 388
 389                 # History
 390                 if ( $allLogs ) {
 391                         // don't show history link for logs
 392                 } elseif ( $namehidden || !$block[0]->getTitle()->exists() ) {
 393                         $logtext .= $this->message['pipe-separator'] . $this->message['enhancedrc-history'];
 394                 } else {
 395                         $params = $queryParams;
 396                         $params['action'] = 'history';
 397
 398                         $logtext .= $this->message['pipe-separator'] .
 399                                 Linker::linkKnown(
 400                                         $block[0]->getTitle(),
 401                                         $this->message['enhancedrc-history'],
 402                                         array(),
 403                                         $params
 404                                 );
 405                 }
 406
 407                 if ( $logtext !== '' ) {
 408                         $r .= $this->msg( 'parentheses' )->rawParams( $logtext )->escaped();
 409                 }
 410
 411                 $r .= ' <span class="mw-changeslist-separator">. .</span> ';
 412
 413                 # Character difference (does not apply if only log items)
 414                 if ( $wgRCShowChangedSize && !$allLogs ) {
 415                         $last = 0;
 416                         $first = count( $block ) - 1;
 417                         # Some events (like logs) have an "empty" size, so we need to skip those...
 418                         while ( $last < $first && $block[$last]->mAttribs['rc_new_len'] === null ) {
 419                                 $last++;
 420                         }
 421                         while ( $first > $last && $block[$first]->mAttribs['rc_old_len'] === null ) {
 422                                 $first--;
 423                         }
 424                         # Get net change
 425                         $chardiff = $this->formatCharacterDifference( $block[$first], $block[$last] );
 426
 427                         if ( $chardiff == '' ) {
 428                                 $r .= ' ';
 429                         } else {
 430                                 $r .= ' ' . $chardiff . ' <span class="mw-changeslist-separator">. .</span> ';
 431                         }
 432                 }
 433
 434                 $r .= $users;
 435                 $r .= $this->numberofWatchingusers( $block[0]->numberofWatchingusers );
 436
 437                 # Sub-entries
 438                 foreach ( $block as $rcObj ) {
 439                         # Classes to apply -- TODO implement
 440                         $classes = array();
 441                         $type = $rcObj->mAttribs['rc_type'];
 442
 443                         $trClass = $rcObj->watched && $rcObj->mAttribs['rc_timestamp'] >= $rcObj->watched
 444                                 ? ' class="mw-enhanced-watched"' : '';
 445
 446                         $r .= '<tr' . $trClass . '><td></td><td class="mw-enhanced-rc">';
 447                         $r .= $this->recentChangesFlags( array(
 448                                 'newpage' => $type == RC_NEW,
 449                                 'minor' => $rcObj->mAttribs['rc_minor'],
 450                                 'unpatrolled' => $rcObj->unpatrolled,
 451                                 'bot' => $rcObj->mAttribs['rc_bot'],
 452                         ) );
 453                         $r .= '&#160;</td><td class="mw-enhanced-rc-nested"><span class="mw-enhanced-rc-time">';
 454
 455                         $params = $queryParams;
 456
 457                         if ( $rcObj->mAttribs['rc_this_oldid'] != 0 ) {
 458                                 $params['oldid'] = $rcObj->mAttribs['rc_this_oldid'];
 459                         }
 460
 461                         # Log timestamp
 462                         if ( $type == RC_LOG ) {
 463                                 $link = $rcObj->timestamp;
 464                         # Revision link
 465                         } elseif ( !ChangesList::userCan( $rcObj, Revision::DELETED_TEXT, $this->getUser() ) ) {
 466                                 $link = '<span class="history-deleted">' . $rcObj->timestamp . '</span> ';
 467                         } else {
 468
 469                                 $link = Linker::linkKnown(
 470                                         $rcObj->getTitle(),
 471                                         $rcObj->timestamp,
 472                                         array(),
 473                                         $params
 474                                 );
 475                                 if ( $this->isDeleted( $rcObj, Revision::DELETED_TEXT ) ) {
 476                                         $link = '<span class="history-deleted">' . $link . '</span> ';
 477                                 }
 478                         }
 479                         $r .= $link . '</span>';
 480
 481                         if ( !$type == RC_LOG || $type == RC_NEW ) {
 482                                 $r .= ' ' . $this->msg( 'parentheses' )->rawParams(
 483                                         $rcObj->curlink .
 484                                                 $this->message['pipe-separator'] .
 485                                                 $rcObj->lastlink
 486                                 )->escaped();
 487                         }
 488                         $r .= ' <span class="mw-changeslist-separator">. .</span> ';
 489
 490                         # Character diff
 491                         if ( $wgRCShowChangedSize ) {
 492                                 $cd = $this->formatCharacterDifference( $rcObj );
 493                                 if ( $cd !== '' ) {
 494                                         $r .= $cd . ' <span class="mw-changeslist-separator">. .</span> ';
 495                                 }
 496                         }
 497
 498                         if ( $rcObj->mAttribs['rc_type'] == RC_LOG ) {
 499                                 $r .= $this->insertLogEntry( $rcObj );
 500                         } else {
 501                                 # User links
 502                                 $r .= $rcObj->userlink;
 503                                 $r .= $rcObj->usertalklink;
 504                                 $r .= $this->insertComment( $rcObj );
 505                         }
 506
 507                         # Rollback
 508                         $this->insertRollback( $r, $rcObj );
 509                         # Tags
 510                         $this->insertTags( $r, $rcObj, $classes );
 511
 512                         $r .= "</td></tr>\n";
 513                 }
 514                 $r .= "</table>\n";
 515
 516                 $this->rcCacheIndex++;
 517
 518                 wfProfileOut( __METHOD__ );
 519
 520                 return $r;
 521         }
 522
 523         /**
 524          * Generate HTML for an arrow or placeholder graphic
 525          * @param string $dir one of '', 'd', 'l', 'r'
 526          * @param string $alt text
 527          * @param string $title text
 528          * @return String: HTML "<img>" tag
 529          */
 530         protected function arrow( $dir, $alt = '', $title = '' ) {
 531                 global $wgStylePath;
 532                 $encUrl = htmlspecialchars( $wgStylePath . '/common/images/Arr_' . $dir . '.png' );
 533                 $encAlt = htmlspecialchars( $alt );
 534                 $encTitle = htmlspecialchars( $title );
 535
 536                 return "<img src=\"$encUrl\" width=\"12\" height=\"12\" alt=\"$encAlt\" title=\"$encTitle\" />";
 537         }
 538
 539         /**
 540          * Generate HTML for a right- or left-facing arrow,
 541          * depending on language direction.
 542          * @return String: HTML "<img>" tag
 543          */
 544         protected function sideArrow() {
 545                 $dir = $this->getLanguage()->isRTL() ? 'l' : 'r';
 546
 547                 return $this->arrow( $dir, '+', $this->msg( 'rc-enhanced-expand' )->text() );
 548         }
 549
 550         /**
 551          * Generate HTML for a down-facing arrow
 552          * depending on language direction.
 553          * @return String: HTML "<img>" tag
 554          */
 555         protected function downArrow() {
 556                 return $this->arrow( 'd', '-', $this->msg( 'rc-enhanced-hide' )->text() );
 557         }
 558
 559         /**
 560          * Generate HTML for a spacer image
 561          * @return String: HTML "<img>" tag
 562          */
 563         protected function spacerArrow() {
 564                 return $this->arrow( '', codepointToUtf8( 0xa0 ) ); // non-breaking space
 565         }
 566
 567         /**
 568          * Enhanced RC ungrouped line.
 569          *
 570          * @param $rcObj RecentChange
 571          * @return String: a HTML formatted line (generated using $r)
 572          */
 573         protected function recentChangesBlockLine( $rcObj ) {
 574                 global $wgRCShowChangedSize;
 575
 576                 wfProfileIn( __METHOD__ );
 577                 $query['curid'] = $rcObj->mAttribs['rc_cur_id'];
 578
 579                 $type = $rcObj->mAttribs['rc_type'];
 580                 $logType = $rcObj->mAttribs['rc_log_type'];
 581                 $classes = array( 'mw-enhanced-rc' );
 582                 if ( $logType ) {
 583                         # Log entry
 584                         $classes[] = Sanitizer::escapeClass( 'mw-changeslist-log-'
 585                                 . $logType . '-' . $rcObj->mAttribs['rc_title'] );
 586                 } else {
 587                         $classes[] = Sanitizer::escapeClass( 'mw-changeslist-ns' .
 588                                 $rcObj->mAttribs['rc_namespace'] . '-' . $rcObj->mAttribs['rc_title'] );
 589                 }
 590                 $classes[] = $rcObj->watched && $rcObj->mAttribs['rc_timestamp'] >= $rcObj->watched
 591                         ? 'mw-changeslist-line-watched' : 'mw-changeslist-line-not-watched';
 592                 $r = Html::openElement( 'table', array( 'class' => $classes ) ) .
 593                         Html::openElement( 'tr' );
 594
 595                 $r .= '<td class="mw-enhanced-rc"><span class="mw-enhancedchanges-arrow-space"></span>';
 596                 # Flag and Timestamp
 597                 if ( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
 598                         $r .= $this->recentChangesFlags( array() ); // no flags, but need the placeholders
 599                 } else {
 600                         $r .= $this->recentChangesFlags( array(
 601                                 'newpage' => $type == RC_NEW,
 602                                 'minor' => $rcObj->mAttribs['rc_minor'],
 603                                 'unpatrolled' => $rcObj->unpatrolled,
 604                                 'bot' => $rcObj->mAttribs['rc_bot'],
 605                         ) );
 606                 }
 607                 $r .= '&#160;' . $rcObj->timestamp . '&#160;</td><td>';
 608                 # Article or log link
 609                 if ( $logType ) {
 610                         $logPage = new LogPage( $logType );
 611                         $logTitle = SpecialPage::getTitleFor( 'Log', $logType );
 612                         $logName = $logPage->getName()->escaped();
 613                         $r .= $this->msg( 'parentheses' )
 614                                 ->rawParams( Linker::linkKnown( $logTitle, $logName ) )->escaped();
 615                 } else {
 616                         $this->insertArticleLink( $r, $rcObj, $rcObj->unpatrolled, $rcObj->watched );
 617                 }
 618                 # Diff and hist links
 619                 if ( $type != RC_LOG ) {
 620                         $query['action'] = 'history';
 621                         $r .= ' ' . $this->msg( 'parentheses' )
 622                                 ->rawParams( $rcObj->difflink . $this->message['pipe-separator'] . Linker::linkKnown(
 623                                         $rcObj->getTitle(),
 624                                         $this->message['hist'],
 625                                         array(),
 626                                         $query
 627                                 ) )->escaped();
 628                 }
 629                 $r .= ' <span class="mw-changeslist-separator">. .</span> ';
 630                 # Character diff
 631                 if ( $wgRCShowChangedSize ) {
 632                         $cd = $this->formatCharacterDifference( $rcObj );
 633                         if ( $cd !== '' ) {
 634                                 $r .= $cd . ' <span class="mw-changeslist-separator">. .</span> ';
 635                         }
 636                 }
 637
 638                 if ( $type == RC_LOG ) {
 639                         $r .= $this->insertLogEntry( $rcObj );
 640                 } else {
 641                         $r .= ' ' . $rcObj->userlink . $rcObj->usertalklink;
 642                         $r .= $this->insertComment( $rcObj );
 643                         $this->insertRollback( $r, $rcObj );
 644                 }
 645
 646                 # Tags
 647                 $this->insertTags( $r, $rcObj, $classes );
 648                 # Show how many people are watching this if enabled
 649                 $r .= $this->numberofWatchingusers( $rcObj->numberofWatchingusers );
 650
 651                 $r .= "</td></tr></table>\n";
 652
 653                 wfProfileOut( __METHOD__ );
 654
 655                 return $r;
 656         }
 657
 658         /**
 659          * If enhanced RC is in use, this function takes the previously cached
 660          * RC lines, arranges them, and outputs the HTML
 661          *
 662          * @return string
 663          */
 664         protected function recentChangesBlock() {
 665                 if ( count( $this->rc_cache ) == 0 ) {
 666                         return '';
 667                 }
 668
 669                 wfProfileIn( __METHOD__ );
 670
 671                 $blockOut = '';
 672                 foreach ( $this->rc_cache as $block ) {
 673                         if ( count( $block ) < 2 ) {
 674                                 $blockOut .= $this->recentChangesBlockLine( array_shift( $block ) );
 675                         } else {
 676                                 $blockOut .= $this->recentChangesBlockGroup( $block );
 677                         }
 678                 }
 679
 680                 wfProfileOut( __METHOD__ );
 681
 682                 return '<div>' . $blockOut . '</div>';
 683         }
 684
 685         /**
 686          * Returns text for the end of RC
 687          * If enhanced RC is in use, returns pretty much all the text
 688          * @return string
 689          */
 690         public function endRecentChangesList() {
 691                 return $this->recentChangesBlock() . parent::endRecentChangesList();
 692         }
 693 }