includes/specials/SpecialEditWatchlist.php

   1 <?php
   2 /**
   3  * @defgroup Watchlist Users watchlist handling
   4  */
   5
   6 /**
   7  * Implements Special:EditWatchlist
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  22  * http://www.gnu.org/copyleft/gpl.html
  23  *
  24  * @file
  25  * @ingroup SpecialPage
  26  * @ingroup Watchlist
  27  */
  28
  29 /**
  30  * Provides the UI through which users can perform editing
  31  * operations on their watchlist
  32  *
  33  * @ingroup SpecialPage
  34  * @ingroup Watchlist
  35  * @author Rob Church <robchur@gmail.com>
  36  */
  37 class SpecialEditWatchlist extends UnlistedSpecialPage {
  38         /**
  39          * Editing modes
  40          */
  41         const EDIT_CLEAR = 1;
  42         const EDIT_RAW = 2;
  43         const EDIT_NORMAL = 3;
  44
  45         protected $successMessage;
  46
  47         protected $toc;
  48
  49         private $badItems = array();
  50
  51         public function __construct() {
  52                 parent::__construct( 'EditWatchlist', 'editmywatchlist' );
  53         }
  54
  55         /**
  56          * Main execution point
  57          *
  58          * @param $mode int
  59          */
  60         public function execute( $mode ) {
  61                 $this->setHeaders();
  62
  63                 $out = $this->getOutput();
  64
  65                 # Anons don't get a watchlist
  66                 if ( $this->getUser()->isAnon() ) {
  67                         $out->setPageTitle( $this->msg( 'watchnologin' ) );
  68                         $llink = Linker::linkKnown(
  69                                 SpecialPage::getTitleFor( 'Userlogin' ),
  70                                 $this->msg( 'loginreqlink' )->escaped(),
  71                                 array(),
  72                                 array( 'returnto' => $this->getTitle()->getPrefixedText() )
  73                         );
  74                         $out->addHTML( $this->msg( 'watchlistanontext' )->rawParams( $llink )->parse() );
  75
  76                         return;
  77                 }
  78
  79                 $this->checkPermissions();
  80                 $this->checkReadOnly();
  81
  82                 $this->outputHeader();
  83
  84                 $out->addSubtitle( $this->msg( 'watchlistfor2', $this->getUser()->getName() )
  85                         ->rawParams( SpecialEditWatchlist::buildTools( null ) ) );
  86
  87                 # B/C: $mode used to be waaay down the parameter list, and the first parameter
  88                 # was $wgUser
  89                 if ( $mode instanceof User ) {
  90                         $args = func_get_args();
  91                         if ( count( $args ) >= 4 ) {
  92                                 $mode = $args[3];
  93                         }
  94                 }
  95                 $mode = self::getMode( $this->getRequest(), $mode );
  96
  97                 switch ( $mode ) {
  98                         case self::EDIT_CLEAR:
  99                                 // The "Clear" link scared people too much.
 100                                 // Pass on to the raw editor, from which it's very easy to clear.
 101
 102                         case self::EDIT_RAW:
 103                                 $out->setPageTitle( $this->msg( 'watchlistedit-raw-title' ) );
 104                                 $form = $this->getRawForm();
 105                                 if ( $form->show() ) {
 106                                         $out->addHTML( $this->successMessage );
 107                                         $out->addReturnTo( SpecialPage::getTitleFor( 'Watchlist' ) );
 108                                 }
 109                                 break;
 110
 111                         case self::EDIT_NORMAL:
 112                         default:
 113                                 $out->setPageTitle( $this->msg( 'watchlistedit-normal-title' ) );
 114                                 $form = $this->getNormalForm();
 115                                 if ( $form->show() ) {
 116                                         $out->addHTML( $this->successMessage );
 117                                         $out->addReturnTo( SpecialPage::getTitleFor( 'Watchlist' ) );
 118                                 } elseif ( $this->toc !== false ) {
 119                                         $out->prependHTML( $this->toc );
 120                                 }
 121                                 break;
 122                 }
 123         }
 124
 125         /**
 126          * Extract a list of titles from a blob of text, returning
 127          * (prefixed) strings; unwatchable titles are ignored
 128          *
 129          * @param $list String
 130          * @return array
 131          */
 132         private function extractTitles( $list ) {
 133                 $list = explode( "\n", trim( $list ) );
 134                 if ( !is_array( $list ) ) {
 135                         return array();
 136                 }
 137
 138                 $titles = array();
 139
 140                 foreach ( $list as $text ) {
 141                         $text = trim( $text );
 142                         if ( strlen( $text ) > 0 ) {
 143                                 $title = Title::newFromText( $text );
 144                                 if ( $title instanceof Title && $title->isWatchable() ) {
 145                                         $titles[] = $title;
 146                                 }
 147                         }
 148                 }
 149
 150                 GenderCache::singleton()->doTitlesArray( $titles );
 151
 152                 $list = array();
 153                 /** @var Title $title */
 154                 foreach ( $titles as $title ) {
 155                         $list[] = $title->getPrefixedText();
 156                 }
 157
 158                 return array_unique( $list );
 159         }
 160
 161         public function submitRaw( $data ) {
 162                 $wanted = $this->extractTitles( $data['Titles'] );
 163                 $current = $this->getWatchlist();
 164
 165                 if ( count( $wanted ) > 0 ) {
 166                         $toWatch = array_diff( $wanted, $current );
 167                         $toUnwatch = array_diff( $current, $wanted );
 168                         $this->watchTitles( $toWatch );
 169                         $this->unwatchTitles( $toUnwatch );
 170                         $this->getUser()->invalidateCache();
 171
 172                         if ( count( $toWatch ) > 0 || count( $toUnwatch ) > 0 ) {
 173                                 $this->successMessage = $this->msg( 'watchlistedit-raw-done' )->parse();
 174                         } else {
 175                                 return false;
 176                         }
 177
 178                         if ( count( $toWatch ) > 0 ) {
 179                                 $this->successMessage .= ' ' . $this->msg( 'watchlistedit-raw-added'
 180                                 )->numParams( count( $toWatch ) )->parse();
 181                                 $this->showTitles( $toWatch, $this->successMessage );
 182                         }
 183
 184                         if ( count( $toUnwatch ) > 0 ) {
 185                                 $this->successMessage .= ' ' . $this->msg( 'watchlistedit-raw-removed'
 186                                 )->numParams( count( $toUnwatch ) )->parse();
 187                                 $this->showTitles( $toUnwatch, $this->successMessage );
 188                         }
 189                 } else {
 190                         $this->clearWatchlist();
 191                         $this->getUser()->invalidateCache();
 192
 193                         if ( count( $current ) > 0 ) {
 194                                 $this->successMessage = $this->msg( 'watchlistedit-raw-done' )->parse();
 195                         } else {
 196                                 return false;
 197                         }
 198
 199                         $this->successMessage .= ' ' . $this->msg( 'watchlistedit-raw-removed' )
 200                                 ->numParams( count( $current ) )->parse();
 201                         $this->showTitles( $current, $this->successMessage );
 202                 }
 203
 204                 return true;
 205         }
 206
 207         /**
 208          * Print out a list of linked titles
 209          *
 210          * $titles can be an array of strings or Title objects; the former
 211          * is preferred, since Titles are very memory-heavy
 212          *
 213          * @param array $titles of strings, or Title objects
 214          * @param $output String
 215          */
 216         private function showTitles( $titles, &$output ) {
 217                 $talk = $this->msg( 'talkpagelinktext' )->escaped();
 218                 // Do a batch existence check
 219                 $batch = new LinkBatch();
 220                 foreach ( $titles as $title ) {
 221                         if ( !$title instanceof Title ) {
 222                                 $title = Title::newFromText( $title );
 223                         }
 224
 225                         if ( $title instanceof Title ) {
 226                                 $batch->addObj( $title );
 227                                 $batch->addObj( $title->getTalkPage() );
 228                         }
 229                 }
 230
 231                 $batch->execute();
 232
 233                 // Print out the list
 234                 $output .= "<ul>\n";
 235
 236                 foreach ( $titles as $title ) {
 237                         if ( !$title instanceof Title ) {
 238                                 $title = Title::newFromText( $title );
 239                         }
 240
 241                         if ( $title instanceof Title ) {
 242                                 $output .= "<li>"
 243                                         . Linker::link( $title )
 244                                         . ' (' . Linker::link( $title->getTalkPage(), $talk )
 245                                         . ")</li>\n";
 246                         }
 247                 }
 248
 249                 $output .= "</ul>\n";
 250         }
 251
 252         /**
 253          * Prepare a list of titles on a user's watchlist (excluding talk pages)
 254          * and return an array of (prefixed) strings
 255          *
 256          * @return array
 257          */
 258         private function getWatchlist() {
 259                 $list = array();
 260                 $dbr = wfGetDB( DB_MASTER );
 261
 262                 $res = $dbr->select(
 263                         'watchlist',
 264                         array(
 265                                 'wl_namespace', 'wl_title'
 266                         ), array(
 267                                 'wl_user' => $this->getUser()->getId(),
 268                         ),
 269                         __METHOD__
 270                 );
 271
 272                 if ( $res->numRows() > 0 ) {
 273                         $titles = array();
 274                         foreach ( $res as $row ) {
 275                                 $title = Title::makeTitleSafe( $row->wl_namespace, $row->wl_title );
 276
 277                                 if ( $this->checkTitle( $title, $row->wl_namespace, $row->wl_title )
 278                                         && !$title->isTalkPage()
 279                                 ) {
 280                                         $titles[] = $title;
 281                                 }
 282                         }
 283                         $res->free();
 284
 285                         GenderCache::singleton()->doTitlesArray( $titles );
 286
 287                         foreach ( $titles as $title ) {
 288                                 $list[] = $title->getPrefixedText();
 289                         }
 290                 }
 291
 292                 $this->cleanupWatchlist();
 293
 294                 return $list;
 295         }
 296
 297         /**
 298          * Get a list of titles on a user's watchlist, excluding talk pages,
 299          * and return as a two-dimensional array with namespace and title.
 300          *
 301          * @return array
 302          */
 303         private function getWatchlistInfo() {
 304                 $titles = array();
 305                 $dbr = wfGetDB( DB_MASTER );
 306
 307                 $res = $dbr->select(
 308                         array( 'watchlist' ),
 309                         array( 'wl_namespace', 'wl_title' ),
 310                         array( 'wl_user' => $this->getUser()->getId() ),
 311                         __METHOD__,
 312                         array( 'ORDER BY' => array( 'wl_namespace', 'wl_title' ) )
 313                 );
 314
 315                 $lb = new LinkBatch();
 316
 317                 foreach ( $res as $row ) {
 318                         $lb->add( $row->wl_namespace, $row->wl_title );
 319                         if ( !MWNamespace::isTalk( $row->wl_namespace ) ) {
 320                                 $titles[$row->wl_namespace][$row->wl_title] = 1;
 321                         }
 322                 }
 323
 324                 $lb->execute();
 325
 326                 return $titles;
 327         }
 328
 329         /**
 330          * Validates watchlist entry
 331          *
 332          * @param Title $title
 333          * @param int $namespace
 334          * @param string $dbKey
 335          * @return bool: Whether this item is valid
 336          */
 337         private function checkTitle( $title, $namespace, $dbKey ) {
 338                 if ( $title
 339                         && ( $title->isExternal()
 340                                 || $title->getNamespace() < 0
 341                         )
 342                 ) {
 343                         $title = false; // unrecoverable
 344                 }
 345
 346                 if ( !$title
 347                         || $title->getNamespace() != $namespace
 348                         || $title->getDBkey() != $dbKey
 349                 ) {
 350                         $this->badItems[] = array( $title, $namespace, $dbKey );
 351                 }
 352
 353                 return (bool)$title;
 354         }
 355
 356         /**
 357          * Attempts to clean up broken items
 358          */
 359         private function cleanupWatchlist() {
 360                 if ( !count( $this->badItems ) ) {
 361                         return; //nothing to do
 362                 }
 363
 364                 $dbw = wfGetDB( DB_MASTER );
 365                 $user = $this->getUser();
 366
 367                 foreach ( $this->badItems as $row ) {
 368                         list( $title, $namespace, $dbKey ) = $row;
 369                         $action = $title ? 'cleaning up' : 'deleting';
 370                         wfDebug( "User {$user->getName()} has broken watchlist item ns($namespace):$dbKey, $action.\n" );
 371
 372                         $dbw->delete( 'watchlist',
 373                                 array(
 374                                         'wl_user' => $user->getId(),
 375                                         'wl_namespace' => $namespace,
 376                                         'wl_title' => $dbKey,
 377                                 ),
 378                                 __METHOD__
 379                         );
 380
 381                         // Can't just do an UPDATE instead of DELETE/INSERT due to unique index
 382                         if ( $title ) {
 383                                 $user->addWatch( $title );
 384                         }
 385                 }
 386         }
 387
 388         /**
 389          * Remove all titles from a user's watchlist
 390          */
 391         private function clearWatchlist() {
 392                 $dbw = wfGetDB( DB_MASTER );
 393                 $dbw->delete(
 394                         'watchlist',
 395                         array( 'wl_user' => $this->getUser()->getId() ),
 396                         __METHOD__
 397                 );
 398         }
 399
 400         /**
 401          * Add a list of titles to a user's watchlist
 402          *
 403          * $titles can be an array of strings or Title objects; the former
 404          * is preferred, since Titles are very memory-heavy
 405          *
 406          * @param array $titles of strings, or Title objects
 407          */
 408         private function watchTitles( $titles ) {
 409                 $dbw = wfGetDB( DB_MASTER );
 410                 $rows = array();
 411
 412                 foreach ( $titles as $title ) {
 413                         if ( !$title instanceof Title ) {
 414                                 $title = Title::newFromText( $title );
 415                         }
 416
 417                         if ( $title instanceof Title ) {
 418                                 $rows[] = array(
 419                                         'wl_user' => $this->getUser()->getId(),
 420                                         'wl_namespace' => MWNamespace::getSubject( $title->getNamespace() ),
 421                                         'wl_title' => $title->getDBkey(),
 422                                         'wl_notificationtimestamp' => null,
 423                                 );
 424                                 $rows[] = array(
 425                                         'wl_user' => $this->getUser()->getId(),
 426                                         'wl_namespace' => MWNamespace::getTalk( $title->getNamespace() ),
 427                                         'wl_title' => $title->getDBkey(),
 428                                         'wl_notificationtimestamp' => null,
 429                                 );
 430                         }
 431                 }
 432
 433                 $dbw->insert( 'watchlist', $rows, __METHOD__, 'IGNORE' );
 434         }
 435
 436         /**
 437          * Remove a list of titles from a user's watchlist
 438          *
 439          * $titles can be an array of strings or Title objects; the former
 440          * is preferred, since Titles are very memory-heavy
 441          *
 442          * @param array $titles of strings, or Title objects
 443          */
 444         private function unwatchTitles( $titles ) {
 445                 $dbw = wfGetDB( DB_MASTER );
 446
 447                 foreach ( $titles as $title ) {
 448                         if ( !$title instanceof Title ) {
 449                                 $title = Title::newFromText( $title );
 450                         }
 451
 452                         if ( $title instanceof Title ) {
 453                                 $dbw->delete(
 454                                         'watchlist',
 455                                         array(
 456                                                 'wl_user' => $this->getUser()->getId(),
 457                                                 'wl_namespace' => MWNamespace::getSubject( $title->getNamespace() ),
 458                                                 'wl_title' => $title->getDBkey(),
 459                                         ),
 460                                         __METHOD__
 461                                 );
 462
 463                                 $dbw->delete(
 464                                         'watchlist',
 465                                         array(
 466                                                 'wl_user' => $this->getUser()->getId(),
 467                                                 'wl_namespace' => MWNamespace::getTalk( $title->getNamespace() ),
 468                                                 'wl_title' => $title->getDBkey(),
 469                                         ),
 470                                         __METHOD__
 471                                 );
 472
 473                                 $page = WikiPage::factory( $title );
 474                                 wfRunHooks( 'UnwatchArticleComplete', array( $this->getUser(), &$page ) );
 475                         }
 476                 }
 477         }
 478
 479         public function submitNormal( $data ) {
 480                 $removed = array();
 481
 482                 foreach ( $data as $titles ) {
 483                         $this->unwatchTitles( $titles );
 484                         $removed = array_merge( $removed, $titles );
 485                 }
 486
 487                 if ( count( $removed ) > 0 ) {
 488                         $this->successMessage = $this->msg( 'watchlistedit-normal-done'
 489                         )->numParams( count( $removed ) )->parse();
 490                         $this->showTitles( $removed, $this->successMessage );
 491
 492                         return true;
 493                 } else {
 494                         return false;
 495                 }
 496         }
 497
 498         /**
 499          * Get the standard watchlist editing form
 500          *
 501          * @return HTMLForm
 502          */
 503         protected function getNormalForm() {
 504                 global $wgContLang;
 505
 506                 $fields = array();
 507                 $count = 0;
 508
 509                 foreach ( $this->getWatchlistInfo() as $namespace => $pages ) {
 510                         if ( $namespace >= 0 ) {
 511                                 $fields['TitlesNs' . $namespace] = array(
 512                                         'class' => 'EditWatchlistCheckboxSeriesField',
 513                                         'options' => array(),
 514                                         'section' => "ns$namespace",
 515                                 );
 516                         }
 517
 518                         foreach ( array_keys( $pages ) as $dbkey ) {
 519                                 $title = Title::makeTitleSafe( $namespace, $dbkey );
 520
 521                                 if ( $this->checkTitle( $title, $namespace, $dbkey ) ) {
 522                                         $text = $this->buildRemoveLine( $title );
 523                                         $fields['TitlesNs' . $namespace]['options'][$text] = $title->getPrefixedText();
 524                                         $count++;
 525                                 }
 526                         }
 527                 }
 528                 $this->cleanupWatchlist();
 529
 530                 if ( count( $fields ) > 1 && $count > 30 ) {
 531                         $this->toc = Linker::tocIndent();
 532                         $tocLength = 0;
 533
 534                         foreach ( $fields as $data ) {
 535                                 # strip out the 'ns' prefix from the section name:
 536                                 $ns = substr( $data['section'], 2 );
 537
 538                                 $nsText = ( $ns == NS_MAIN )
 539                                         ? $this->msg( 'blanknamespace' )->escaped()
 540                                         : htmlspecialchars( $wgContLang->getFormattedNsText( $ns ) );
 541                                 $this->toc .= Linker::tocLine( "editwatchlist-{$data['section']}", $nsText,
 542                                         $this->getLanguage()->formatNum( ++$tocLength ), 1 ) . Linker::tocLineEnd();
 543                         }
 544
 545                         $this->toc = Linker::tocList( $this->toc );
 546                 } else {
 547                         $this->toc = false;
 548                 }
 549
 550                 $form = new EditWatchlistNormalHTMLForm( $fields, $this->getContext() );
 551                 $form->setTitle( $this->getTitle() );
 552                 $form->setSubmitTextMsg( 'watchlistedit-normal-submit' );
 553                 # Used message keys: 'accesskey-watchlistedit-normal-submit', 'tooltip-watchlistedit-normal-submit'
 554                 $form->setSubmitTooltip( 'watchlistedit-normal-submit' );
 555                 $form->setWrapperLegendMsg( 'watchlistedit-normal-legend' );
 556                 $form->addHeaderText( $this->msg( 'watchlistedit-normal-explain' )->parse() );
 557                 $form->setSubmitCallback( array( $this, 'submitNormal' ) );
 558
 559                 return $form;
 560         }
 561
 562         /**
 563          * Build the label for a checkbox, with a link to the title, and various additional bits
 564          *
 565          * @param $title Title
 566          * @return string
 567          */
 568         private function buildRemoveLine( $title ) {
 569                 $link = Linker::link( $title );
 570
 571                 if ( $title->isRedirect() ) {
 572                         // Linker already makes class mw-redirect, so this is redundant
 573                         $link = '<span class="watchlistredir">' . $link . '</span>';
 574                 }
 575
 576                 $tools[] = Linker::link( $title->getTalkPage(), $this->msg( 'talkpagelinktext' )->escaped() );
 577
 578                 if ( $title->exists() ) {
 579                         $tools[] = Linker::linkKnown(
 580                                 $title,
 581                                 $this->msg( 'history_short' )->escaped(),
 582                                 array(),
 583                                 array( 'action' => 'history' )
 584                         );
 585                 }
 586
 587                 if ( $title->getNamespace() == NS_USER && !$title->isSubpage() ) {
 588                         $tools[] = Linker::linkKnown(
 589                                 SpecialPage::getTitleFor( 'Contributions', $title->getText() ),
 590                                 $this->msg( 'contributions' )->escaped()
 591                         );
 592                 }
 593
 594                 wfRunHooks( 'WatchlistEditorBuildRemoveLine', array( &$tools, $title, $title->isRedirect(), $this->getSkin() ) );
 595
 596                 return $link . " (" . $this->getLanguage()->pipeList( $tools ) . ")";
 597         }
 598
 599         /**
 600          * Get a form for editing the watchlist in "raw" mode
 601          *
 602          * @return HTMLForm
 603          */
 604         protected function getRawForm() {
 605                 $titles = implode( $this->getWatchlist(), "\n" );
 606                 $fields = array(
 607                         'Titles' => array(
 608                                 'type' => 'textarea',
 609                                 'label-message' => 'watchlistedit-raw-titles',
 610                                 'default' => $titles,
 611                         ),
 612                 );
 613                 $form = new HTMLForm( $fields, $this->getContext() );
 614                 $form->setTitle( $this->getTitle( 'raw' ) );
 615                 $form->setSubmitTextMsg( 'watchlistedit-raw-submit' );
 616                 # Used message keys: 'accesskey-watchlistedit-raw-submit', 'tooltip-watchlistedit-raw-submit'
 617                 $form->setSubmitTooltip( 'watchlistedit-raw-submit' );
 618                 $form->setWrapperLegendMsg( 'watchlistedit-raw-legend' );
 619                 $form->addHeaderText( $this->msg( 'watchlistedit-raw-explain' )->parse() );
 620                 $form->setSubmitCallback( array( $this, 'submitRaw' ) );
 621
 622                 return $form;
 623         }
 624
 625         /**
 626          * Determine whether we are editing the watchlist, and if so, what
 627          * kind of editing operation
 628          *
 629          * @param $request WebRequest
 630          * @param $par mixed
 631          * @return int
 632          */
 633         public static function getMode( $request, $par ) {
 634                 $mode = strtolower( $request->getVal( 'action', $par ) );
 635
 636                 switch ( $mode ) {
 637                         case 'clear':
 638                         case self::EDIT_CLEAR:
 639                                 return self::EDIT_CLEAR;
 640                         case 'raw':
 641                         case self::EDIT_RAW:
 642                                 return self::EDIT_RAW;
 643                         case 'edit':
 644                         case self::EDIT_NORMAL:
 645                                 return self::EDIT_NORMAL;
 646                         default:
 647                                 return false;
 648                 }
 649         }
 650
 651         /**
 652          * Build a set of links for convenient navigation
 653          * between watchlist viewing and editing modes
 654          *
 655          * @param $unused
 656          * @return string
 657          */
 658         public static function buildTools( $unused ) {
 659                 global $wgLang;
 660
 661                 $tools = array();
 662                 $modes = array(
 663                         'view' => array( 'Watchlist', false ),
 664                         'edit' => array( 'EditWatchlist', false ),
 665                         'raw' => array( 'EditWatchlist', 'raw' ),
 666                 );
 667
 668                 foreach ( $modes as $mode => $arr ) {
 669                         // can use messages 'watchlisttools-view', 'watchlisttools-edit', 'watchlisttools-raw'
 670                         $tools[] = Linker::linkKnown(
 671                                 SpecialPage::getTitleFor( $arr[0], $arr[1] ),
 672                                 wfMessage( "watchlisttools-{$mode}" )->escaped()
 673                         );
 674                 }
 675
 676                 return Html::rawElement(
 677                         'span',
 678                         array( 'class' => 'mw-watchlist-toollinks' ),
 679                         wfMessage( 'parentheses', $wgLang->pipeList( $tools ) )->text()
 680                 );
 681         }
 682 }
 683
 684 # B/C since 1.18
 685 class WatchlistEditor extends SpecialEditWatchlist {
 686 }
 687
 688 /**
 689  * Extend HTMLForm purely so we can have a more sane way of getting the section headers
 690  */
 691 class EditWatchlistNormalHTMLForm extends HTMLForm {
 692         public function getLegend( $namespace ) {
 693                 $namespace = substr( $namespace, 2 );
 694
 695                 return $namespace == NS_MAIN
 696                         ? $this->msg( 'blanknamespace' )->escaped()
 697                         : htmlspecialchars( $this->getContext()->getLanguage()->getFormattedNsText( $namespace ) );
 698         }
 699
 700         public function getBody() {
 701                 return $this->displaySection( $this->mFieldTree, '', 'editwatchlist-' );
 702         }
 703 }
 704
 705 class EditWatchlistCheckboxSeriesField extends HTMLMultiSelectField {
 706         /**
 707          * HTMLMultiSelectField throws validation errors if we get input data
 708          * that doesn't match the data set in the form setup. This causes
 709          * problems if something gets removed from the watchlist while the
 710          * form is open (bug 32126), but we know that invalid items will
 711          * be harmless so we can override it here.
 712          *
 713          * @param string $value the value the field was submitted with
 714          * @param array $alldata the data collected from the form
 715          * @return Mixed Bool true on success, or String error to display.
 716          */
 717         function validate( $value, $alldata ) {
 718                 // Need to call into grandparent to be a good citizen. :)
 719                 return HTMLFormField::validate( $value, $alldata );
 720         }
 721 }