includes/specials/SpecialWatchlist.php

   1 <?php
   2 /**
   3  * Implements Special:Watchlist
   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  * @ingroup SpecialPage
  22  */
  23
  24 use MediaWiki\MediaWikiServices;
  25 use Wikimedia\Rdbms\ResultWrapper;
  26 use Wikimedia\Rdbms\IDatabase;
  27
  28 /**
  29  * A special page that lists last changes made to the wiki,
  30  * limited to user-defined list of titles.
  31  *
  32  * @ingroup SpecialPage
  33  */
  34 class SpecialWatchlist extends ChangesListSpecialPage {
  35         public function __construct( $page = 'Watchlist', $restriction = 'viewmywatchlist' ) {
  36                 parent::__construct( $page, $restriction );
  37
  38                 $this->maxDays = $this->getConfig()->get( 'RCMaxAge' ) / ( 3600 * 24 );
  39         }
  40
  41         public function doesWrites() {
  42                 return true;
  43         }
  44
  45         /**
  46          * Main execution point
  47          *
  48          * @param string $subpage
  49          */
  50         function execute( $subpage ) {
  51                 // Anons don't get a watchlist
  52                 $this->requireLogin( 'watchlistanontext' );
  53
  54                 $output = $this->getOutput();
  55                 $request = $this->getRequest();
  56                 $this->addHelpLink( 'Help:Watching pages' );
  57                 $output->addModules( [
  58                         'mediawiki.special.changeslist.visitedstatus',
  59                         'mediawiki.special.watchlist',
  60                 ] );
  61
  62                 $mode = SpecialEditWatchlist::getMode( $request, $subpage );
  63                 if ( $mode !== false ) {
  64                         if ( $mode === SpecialEditWatchlist::EDIT_RAW ) {
  65                                 $title = SpecialPage::getTitleFor( 'EditWatchlist', 'raw' );
  66                         } elseif ( $mode === SpecialEditWatchlist::EDIT_CLEAR ) {
  67                                 $title = SpecialPage::getTitleFor( 'EditWatchlist', 'clear' );
  68                         } else {
  69                                 $title = SpecialPage::getTitleFor( 'EditWatchlist' );
  70                         }
  71
  72                         $output->redirect( $title->getLocalURL() );
  73
  74                         return;
  75                 }
  76
  77                 $this->checkPermissions();
  78
  79                 $user = $this->getUser();
  80                 $opts = $this->getOptions();
  81
  82                 $config = $this->getConfig();
  83                 if ( ( $config->get( 'EnotifWatchlist' ) || $config->get( 'ShowUpdatedMarker' ) )
  84                         && $request->getVal( 'reset' )
  85                         && $request->wasPosted()
  86                         && $user->matchEditToken( $request->getVal( 'token' ) )
  87                 ) {
  88                         $user->clearAllNotifications();
  89                         $output->redirect( $this->getPageTitle()->getFullURL( $opts->getChangedValues() ) );
  90
  91                         return;
  92                 }
  93
  94                 parent::execute( $subpage );
  95         }
  96
  97         /**
  98          * Return an array of subpages that this special page will accept.
  99          *
 100          * @see also SpecialEditWatchlist::getSubpagesForPrefixSearch
 101          * @return string[] subpages
 102          */
 103         public function getSubpagesForPrefixSearch() {
 104                 return [
 105                         'clear',
 106                         'edit',
 107                         'raw',
 108                 ];
 109         }
 110
 111         /**
 112          * @inheritdoc
 113          */
 114         protected function transformFilterDefinition( array $filterDefinition ) {
 115                 if ( isset( $filterDefinition['showHideSuffix'] ) ) {
 116                         $filterDefinition['showHide'] = 'wl' . $filterDefinition['showHideSuffix'];
 117                 }
 118
 119                 return $filterDefinition;
 120         }
 121
 122         /**
 123          * @inheritdoc
 124          */
 125         protected function registerFilters() {
 126                 parent::registerFilters();
 127
 128                 $user = $this->getUser();
 129
 130                 $significance = $this->getFilterGroup( 'significance' );
 131                 $hideMinor = $significance->getFilter( 'hideminor' );
 132                 $hideMinor->setDefault( $user->getBoolOption( 'watchlisthideminor' ) );
 133
 134                 $automated = $this->getFilterGroup( 'automated' );
 135                 $hideBots = $automated->getFilter( 'hidebots' );
 136                 $hideBots->setDefault( $user->getBoolOption( 'watchlisthidebots' ) );
 137
 138                 $registration = $this->getFilterGroup( 'registration' );
 139                 $hideAnons = $registration->getFilter( 'hideanons' );
 140                 $hideAnons->setDefault( $user->getBoolOption( 'watchlisthideanons' ) );
 141                 $hideLiu = $registration->getFilter( 'hideliu' );
 142                 $hideLiu->setDefault( $user->getBoolOption( 'watchlisthideliu' ) );
 143
 144                 $reviewStatus = $this->getFilterGroup( 'reviewStatus' );
 145                 if ( $reviewStatus !== null ) {
 146                         // Conditional on feature being available and rights
 147                         $hidePatrolled = $reviewStatus->getFilter( 'hidepatrolled' );
 148                         $hidePatrolled->setDefault( $user->getBoolOption( 'watchlisthidepatrolled' ) );
 149                 }
 150
 151                 $authorship = $this->getFilterGroup( 'authorship' );
 152                 $hideMyself = $authorship->getFilter( 'hidemyself' );
 153                 $hideMyself->setDefault( $user->getBoolOption( 'watchlisthideown' ) );
 154
 155                 $changeType = $this->getFilterGroup( 'changeType' );
 156                 $hideCategorization = $changeType->getFilter( 'hidecategorization' );
 157                 if ( $hideCategorization !== null ) {
 158                         // Conditional on feature being available
 159                         $hideCategorization->setDefault( $user->getBoolOption( 'watchlisthidecategorization' ) );
 160                 }
 161         }
 162
 163         /**
 164          * Get a FormOptions object containing the default options
 165          *
 166          * @return FormOptions
 167          */
 168         public function getDefaultOptions() {
 169                 $opts = parent::getDefaultOptions();
 170                 $user = $this->getUser();
 171
 172                 $opts->add( 'days', $user->getOption( 'watchlistdays' ), FormOptions::FLOAT );
 173                 $opts->add( 'extended', $user->getBoolOption( 'extendwatchlist' ) );
 174
 175                 return $opts;
 176         }
 177
 178         public function validateOptions( FormOptions $opts ) {
 179                 $opts->validateBounds( 'days', 0, $this->maxDays );
 180                 parent::validateOptions( $opts );
 181         }
 182
 183         /**
 184          * Get all custom filters
 185          *
 186          * @return array Map of filter URL param names to properties (msg/default)
 187          */
 188         protected function getCustomFilters() {
 189                 if ( $this->customFilters === null ) {
 190                         $this->customFilters = parent::getCustomFilters();
 191                         Hooks::run( 'SpecialWatchlistFilters', [ $this, &$this->customFilters ], '1.23' );
 192                 }
 193
 194                 return $this->customFilters;
 195         }
 196
 197         /**
 198          * Fetch values for a FormOptions object from the WebRequest associated with this instance.
 199          *
 200          * Maps old pre-1.23 request parameters Watchlist used to use (different from Recentchanges' ones)
 201          * to the current ones.
 202          *
 203          * @param FormOptions $opts
 204          * @return FormOptions
 205          */
 206         protected function fetchOptionsFromRequest( $opts ) {
 207                 static $compatibilityMap = [
 208                         'hideMinor' => 'hideminor',
 209                         'hideBots' => 'hidebots',
 210                         'hideAnons' => 'hideanons',
 211                         'hideLiu' => 'hideliu',
 212                         'hidePatrolled' => 'hidepatrolled',
 213                         'hideOwn' => 'hidemyself',
 214                 ];
 215
 216                 $params = $this->getRequest()->getValues();
 217                 foreach ( $compatibilityMap as $from => $to ) {
 218                         if ( isset( $params[$from] ) ) {
 219                                 $params[$to] = $params[$from];
 220                                 unset( $params[$from] );
 221                         }
 222                 }
 223
 224                 if ( $this->getRequest()->getVal( 'action' ) == 'submit' ) {
 225                         $allBooleansFalse = [];
 226
 227                         // If the user submitted the form, start with a baseline of "all
 228                         // booleans are false", then change the ones they checked.  This
 229                         // means we ignore the defaults.
 230
 231                         // This is how we handle the fact that HTML forms don't submit
 232                         // unchecked boxes.
 233                         foreach ( $this->filterGroups as $filterGroup ) {
 234                                 if ( $filterGroup instanceof ChangesListBooleanFilterGroup ) {
 235                                         foreach ( $filterGroup->getFilters() as $filter ) {
 236                                                 $allBooleansFalse[$filter->getName()] = false;
 237                                         }
 238                                 }
 239                         }
 240
 241                         $params = $params + $allBooleansFalse;
 242                 }
 243
 244                 // Not the prettiest way to achieve this… FormOptions internally depends on data sanitization
 245                 // methods defined on WebRequest and removing this dependency would cause some code duplication.
 246                 $request = new DerivativeRequest( $this->getRequest(), $params );
 247                 $opts->fetchValuesFromRequest( $request );
 248
 249                 return $opts;
 250         }
 251
 252         /**
 253          * @inheritdoc
 254          */
 255         protected function buildQuery( &$tables, &$fields, &$conds, &$query_options,
 256                 &$join_conds, FormOptions $opts
 257         ) {
 258                 $dbr = $this->getDB();
 259                 parent::buildQuery( $tables, $fields, $conds, $query_options, $join_conds,
 260                         $opts );
 261
 262                 // Calculate cutoff
 263                 if ( $opts['days'] > 0 ) {
 264                         $conds[] = 'rc_timestamp > ' .
 265                                 $dbr->addQuotes( $dbr->timestamp( time() - $opts['days'] * 3600 * 24 ) );
 266                 }
 267         }
 268
 269         /**
 270          * @inheritdoc
 271          */
 272         protected function doMainQuery( $tables, $fields, $conds, $query_options,
 273                 $join_conds, FormOptions $opts
 274         ) {
 275                 $dbr = $this->getDB();
 276                 $user = $this->getUser();
 277
 278                 # Toggle watchlist content (all recent edits or just the latest)
 279                 if ( $opts['extended'] ) {
 280                         $usePage = false;
 281                 } else {
 282                         # Top log Ids for a page are not stored
 283                         $nonRevisionTypes = [ RC_LOG ];
 284                         Hooks::run( 'SpecialWatchlistGetNonRevisionTypes', [ &$nonRevisionTypes ] );
 285                         if ( $nonRevisionTypes ) {
 286                                 $conds[] = $dbr->makeList(
 287                                         [
 288                                                 'rc_this_oldid=page_latest',
 289                                                 'rc_type' => $nonRevisionTypes,
 290                                         ],
 291                                         LIST_OR
 292                                 );
 293                         }
 294                         $usePage = true;
 295                 }
 296
 297                 $tables = array_merge( [ 'recentchanges', 'watchlist' ], $tables );
 298                 $fields = array_merge( RecentChange::selectFields(), $fields );
 299
 300                 $query_options = array_merge( [
 301                         'ORDER BY' => 'rc_timestamp DESC',
 302                         'LIMIT' => $user->getIntOption( 'wllimit' )
 303                 ], $query_options );
 304                 $join_conds = array_merge(
 305                         [
 306                                 'watchlist' => [
 307                                         'INNER JOIN',
 308                                         [
 309                                                 'wl_user' => $user->getId(),
 310                                                 'wl_namespace=rc_namespace',
 311                                                 'wl_title=rc_title'
 312                                         ],
 313                                 ],
 314                         ],
 315                         $join_conds
 316                 );
 317
 318                 if ( $this->getConfig()->get( 'ShowUpdatedMarker' ) ) {
 319                         $fields[] = 'wl_notificationtimestamp';
 320                 }
 321
 322                 $rollbacker = $user->isAllowed( 'rollback' );
 323                 if ( $usePage || $rollbacker ) {
 324                         $tables[] = 'page';
 325                         $join_conds['page'] = [ 'LEFT JOIN', 'rc_cur_id=page_id' ];
 326                         if ( $rollbacker ) {
 327                                 $fields[] = 'page_latest';
 328                         }
 329                 }
 330
 331                 // Log entries with DELETED_ACTION must not show up unless the user has
 332                 // the necessary rights.
 333                 if ( !$user->isAllowed( 'deletedhistory' ) ) {
 334                         $bitmask = LogPage::DELETED_ACTION;
 335                 } elseif ( !$user->isAllowedAny( 'suppressrevision', 'viewsuppressed' ) ) {
 336                         $bitmask = LogPage::DELETED_ACTION | LogPage::DELETED_RESTRICTED;
 337                 } else {
 338                         $bitmask = 0;
 339                 }
 340                 if ( $bitmask ) {
 341                         $conds[] = $dbr->makeList( [
 342                                 'rc_type != ' . RC_LOG,
 343                                 $dbr->bitAnd( 'rc_deleted', $bitmask ) . " != $bitmask",
 344                         ], LIST_OR );
 345                 }
 346
 347                 ChangeTags::modifyDisplayQuery(
 348                         $tables,
 349                         $fields,
 350                         $conds,
 351                         $join_conds,
 352                         $query_options,
 353                         ''
 354                 );
 355
 356                 $this->runMainQueryHook( $tables, $fields, $conds, $query_options, $join_conds, $opts );
 357
 358                 return $dbr->select(
 359                         $tables,
 360                         $fields,
 361                         $conds,
 362                         __METHOD__,
 363                         $query_options,
 364                         $join_conds
 365                 );
 366         }
 367
 368         protected function runMainQueryHook( &$tables, &$fields, &$conds, &$query_options,
 369                 &$join_conds, $opts
 370         ) {
 371                 return parent::runMainQueryHook( $tables, $fields, $conds, $query_options, $join_conds, $opts )
 372                         && Hooks::run(
 373                                 'SpecialWatchlistQuery',
 374                                 [ &$conds, &$tables, &$join_conds, &$fields, $opts ],
 375                                 '1.23'
 376                         );
 377         }
 378
 379         /**
 380          * Return a IDatabase object for reading
 381          *
 382          * @return IDatabase
 383          */
 384         protected function getDB() {
 385                 return wfGetDB( DB_REPLICA, 'watchlist' );
 386         }
 387
 388         /**
 389          * Output feed links.
 390          */
 391         public function outputFeedLinks() {
 392                 $user = $this->getUser();
 393                 $wlToken = $user->getTokenFromOption( 'watchlisttoken' );
 394                 if ( $wlToken ) {
 395                         $this->addFeedLinks( [
 396                                 'action' => 'feedwatchlist',
 397                                 'allrev' => 1,
 398                                 'wlowner' => $user->getName(),
 399                                 'wltoken' => $wlToken,
 400                         ] );
 401                 }
 402         }
 403
 404         /**
 405          * Build and output the actual changes list.
 406          *
 407          * @param ResultWrapper $rows Database rows
 408          * @param FormOptions $opts
 409          */
 410         public function outputChangesList( $rows, $opts ) {
 411                 $dbr = $this->getDB();
 412                 $user = $this->getUser();
 413                 $output = $this->getOutput();
 414
 415                 # Show a message about replica DB lag, if applicable
 416                 $lag = wfGetLB()->safeGetLag( $dbr );
 417                 if ( $lag > 0 ) {
 418                         $output->showLagWarning( $lag );
 419                 }
 420
 421                 # If no rows to display, show message before try to render the list
 422                 if ( $rows->numRows() == 0 ) {
 423                         $output->wrapWikiMsg(
 424                                 "<div class='mw-changeslist-empty'>\n$1\n</div>", 'recentchanges-noresult'
 425                         );
 426                         return;
 427                 }
 428
 429                 $dbr->dataSeek( $rows, 0 );
 430
 431                 $list = ChangesList::newFromContext( $this->getContext(), $this->filterGroups );
 432                 $list->setWatchlistDivs();
 433                 $list->initChangesListRows( $rows );
 434                 $dbr->dataSeek( $rows, 0 );
 435
 436                 if ( $this->getConfig()->get( 'RCShowWatchingUsers' )
 437                         && $user->getOption( 'shownumberswatching' )
 438                 ) {
 439                         $watchedItemStore = MediaWikiServices::getInstance()->getWatchedItemStore();
 440                 }
 441
 442                 $s = $list->beginRecentChangesList();
 443                 $userShowHiddenCats = $this->getUser()->getBoolOption( 'showhiddencats' );
 444                 $counter = 1;
 445                 foreach ( $rows as $obj ) {
 446                         # Make RC entry
 447                         $rc = RecentChange::newFromRow( $obj );
 448
 449                         # Skip CatWatch entries for hidden cats based on user preference
 450                         if (
 451                                 $rc->getAttribute( 'rc_type' ) == RC_CATEGORIZE &&
 452                                 !$userShowHiddenCats &&
 453                                 $rc->getParam( 'hidden-cat' )
 454                         ) {
 455                                 continue;
 456                         }
 457
 458                         $rc->counter = $counter++;
 459
 460                         if ( $this->getConfig()->get( 'ShowUpdatedMarker' ) ) {
 461                                 $updated = $obj->wl_notificationtimestamp;
 462                         } else {
 463                                 $updated = false;
 464                         }
 465
 466                         if ( isset( $watchedItemStore ) ) {
 467                                 $rcTitleValue = new TitleValue( (int)$obj->rc_namespace, $obj->rc_title );
 468                                 $rc->numberofWatchingusers = $watchedItemStore->countWatchers( $rcTitleValue );
 469                         } else {
 470                                 $rc->numberofWatchingusers = 0;
 471                         }
 472
 473                         $changeLine = $list->recentChangesLine( $rc, $updated, $counter );
 474                         if ( $changeLine !== false ) {
 475                                 $s .= $changeLine;
 476                         }
 477                 }
 478                 $s .= $list->endRecentChangesList();
 479
 480                 $output->addHTML( $s );
 481         }
 482
 483         /**
 484          * Set the text to be displayed above the changes
 485          *
 486          * @param FormOptions $opts
 487          * @param int $numRows Number of rows in the result to show after this header
 488          */
 489         public function doHeader( $opts, $numRows ) {
 490                 $user = $this->getUser();
 491                 $out = $this->getOutput();
 492
 493                 $out->addSubtitle(
 494                         $this->msg( 'watchlistfor2', $user->getName() )
 495                                 ->rawParams( SpecialEditWatchlist::buildTools(
 496                                         $this->getLanguage(),
 497                                         $this->getLinkRenderer()
 498                                 ) )
 499                 );
 500
 501                 $this->setTopText( $opts );
 502
 503                 $lang = $this->getLanguage();
 504                 if ( $opts['days'] > 0 ) {
 505                         $days = $opts['days'];
 506                 } else {
 507                         $days = $this->maxDays;
 508                 }
 509                 $timestamp = wfTimestampNow();
 510                 $wlInfo = $this->msg( 'wlnote' )->numParams( $numRows, round( $days * 24 ) )->params(
 511                         $lang->userDate( $timestamp, $user ), $lang->userTime( $timestamp, $user )
 512                 )->parse() . "<br />\n";
 513
 514                 $nondefaults = $opts->getChangedValues();
 515                 $cutofflinks = $this->msg( 'wlshowtime' ) . ' ' . $this->cutoffselector( $opts );
 516
 517                 # Spit out some control panel links
 518                 $links = [];
 519                 $context = $this->getContext();
 520                 $namesOfDisplayedFilters = [];
 521                 foreach ( $this->getFilterGroups() as $groupName => $group ) {
 522                         if ( !$group->isPerGroupRequestParameter() ) {
 523                                 foreach ( $group->getFilters() as $filterName => $filter ) {
 524                                         if ( $filter->displaysOnUnstructuredUi( $this ) ) {
 525                                                 $namesOfDisplayedFilters[] = $filterName;
 526                                                 $links[] = $this->showHideCheck(
 527                                                         $nondefaults,
 528                                                         $filter->getShowHide(),
 529                                                         $filterName,
 530                                                         $opts[$filterName]
 531                                                 );
 532                                         }
 533                                 }
 534                         }
 535                 }
 536
 537                 $hiddenFields = $nondefaults;
 538                 $hiddenFields['action'] = 'submit';
 539                 unset( $hiddenFields['namespace'] );
 540                 unset( $hiddenFields['invert'] );
 541                 unset( $hiddenFields['associated'] );
 542                 unset( $hiddenFields['days'] );
 543                 foreach ( $namesOfDisplayedFilters as $filterName ) {
 544                         unset( $hiddenFields[$filterName] );
 545                 }
 546
 547                 # Create output
 548                 $form = '';
 549
 550                 # Namespace filter and put the whole form together.
 551                 $form .= $wlInfo;
 552                 $form .= $cutofflinks;
 553                 $form .= $this->msg( 'watchlist-hide' ) .
 554                         $this->msg( 'colon-separator' )->escaped() .
 555                         implode( ' ', $links );
 556                 $form .= "\n<br />\n";
 557                 $form .= Html::namespaceSelector(
 558                         [
 559                                 'selected' => $opts['namespace'],
 560                                 'all' => '',
 561                                 'label' => $this->msg( 'namespace' )->text()
 562                         ], [
 563                                 'name' => 'namespace',
 564                                 'id' => 'namespace',
 565                                 'class' => 'namespaceselector',
 566                         ]
 567                 ) . "\n";
 568                 $form .= '<span class="mw-input-with-label">' . Xml::checkLabel(
 569                         $this->msg( 'invert' )->text(),
 570                         'invert',
 571                         'nsinvert',
 572                         $opts['invert'],
 573                         [ 'title' => $this->msg( 'tooltip-invert' )->text() ]
 574                 ) . "</span>\n";
 575                 $form .= '<span class="mw-input-with-label">' . Xml::checkLabel(
 576                         $this->msg( 'namespace_association' )->text(),
 577                         'associated',
 578                         'nsassociated',
 579                         $opts['associated'],
 580                         [ 'title' => $this->msg( 'tooltip-namespace_association' )->text() ]
 581                 ) . "</span>\n";
 582                 $form .= Xml::submitButton( $this->msg( 'watchlist-submit' )->text() ) . "\n";
 583                 foreach ( $hiddenFields as $key => $value ) {
 584                         $form .= Html::hidden( $key, $value ) . "\n";
 585                 }
 586                 $form .= Xml::closeElement( 'fieldset' ) . "\n";
 587                 $form .= Xml::closeElement( 'form' ) . "\n";
 588                 $this->getOutput()->addHTML( $form );
 589
 590                 $this->setBottomText( $opts );
 591         }
 592
 593         function cutoffselector( $options ) {
 594                 // Cast everything to strings immediately, so that we know all of the values have the same
 595                 // precision, and can be compared with '==='. 2/24 has a few more decimal places than its
 596                 // default string representation, for example, and would confuse comparisons.
 597
 598                 // Misleadingly, the 'days' option supports hours too.
 599                 $days = array_map( 'strval', [ 1/24, 2/24, 6/24, 12/24, 1, 3, 7 ] );
 600
 601                 $userWatchlistOption = (string)$this->getUser()->getOption( 'watchlistdays' );
 602                 // add the user preference, if it isn't available already
 603                 if ( !in_array( $userWatchlistOption, $days ) && $userWatchlistOption !== '0' ) {
 604                         $days[] = $userWatchlistOption;
 605                 }
 606
 607                 $maxDays = (string)$this->maxDays;
 608                 // add the maximum possible value, if it isn't available already
 609                 if ( !in_array( $maxDays, $days ) ) {
 610                         $days[] = $maxDays;
 611                 }
 612
 613                 $selected = (string)$options['days'];
 614                 if ( $selected <= 0 ) {
 615                         $selected = $maxDays;
 616                 }
 617
 618                 // add the currently selected value, if it isn't available already
 619                 if ( !in_array( $selected, $days ) ) {
 620                         $days[] = $selected;
 621                 }
 622
 623                 $select = new XmlSelect( 'days', 'days', $selected );
 624
 625                 asort( $days );
 626                 foreach ( $days as $value ) {
 627                         if ( $value < 1 ) {
 628                                 $name = $this->msg( 'hours' )->numParams( $value * 24 )->text();
 629                         } else {
 630                                 $name = $this->msg( 'days' )->numParams( $value )->text();
 631                         }
 632                         $select->addOption( $name, $value );
 633                 }
 634
 635                 return $select->getHTML() . "\n<br />\n";
 636         }
 637
 638         function setTopText( FormOptions $opts ) {
 639                 $nondefaults = $opts->getChangedValues();
 640                 $form = "";
 641                 $user = $this->getUser();
 642
 643                 $numItems = $this->countItems();
 644                 $showUpdatedMarker = $this->getConfig()->get( 'ShowUpdatedMarker' );
 645
 646                 // Show watchlist header
 647                 $form .= "<p>";
 648                 if ( $numItems == 0 ) {
 649                         $form .= $this->msg( 'nowatchlist' )->parse() . "\n";
 650                 } else {
 651                         $form .= $this->msg( 'watchlist-details' )->numParams( $numItems )->parse() . "\n";
 652                         if ( $this->getConfig()->get( 'EnotifWatchlist' )
 653                                 && $user->getOption( 'enotifwatchlistpages' )
 654                         ) {
 655                                 $form .= $this->msg( 'wlheader-enotif' )->parse() . "\n";
 656                         }
 657                         if ( $showUpdatedMarker ) {
 658                                 $form .= $this->msg( 'wlheader-showupdated' )->parse() . "\n";
 659                         }
 660                 }
 661                 $form .= "</p>";
 662
 663                 if ( $numItems > 0 && $showUpdatedMarker ) {
 664                         $form .= Xml::openElement( 'form', [ 'method' => 'post',
 665                                 'action' => $this->getPageTitle()->getLocalURL(),
 666                                 'id' => 'mw-watchlist-resetbutton' ] ) . "\n" .
 667                         Xml::submitButton( $this->msg( 'enotif_reset' )->text(),
 668                                 [ 'name' => 'mw-watchlist-reset-submit' ] ) . "\n" .
 669                         Html::hidden( 'token', $user->getEditToken() ) . "\n" .
 670                         Html::hidden( 'reset', 'all' ) . "\n";
 671                         foreach ( $nondefaults as $key => $value ) {
 672                                 $form .= Html::hidden( $key, $value ) . "\n";
 673                         }
 674                         $form .= Xml::closeElement( 'form' ) . "\n";
 675                 }
 676
 677                 $form .= Xml::openElement( 'form', [
 678                         'method' => 'get',
 679                         'action' => wfScript(),
 680                         'id' => 'mw-watchlist-form'
 681                 ] );
 682                 $form .= Html::hidden( 'title', $this->getPageTitle()->getPrefixedText() );
 683                 $form .= Xml::fieldset(
 684                         $this->msg( 'watchlist-options' )->text(),
 685                         false,
 686                         [ 'id' => 'mw-watchlist-options' ]
 687                 );
 688
 689                 $form .= $this->makeLegend();
 690
 691                 $this->getOutput()->addHTML( $form );
 692         }
 693
 694         protected function showHideCheck( $options, $message, $name, $value ) {
 695                 $options[$name] = 1 - (int)$value;
 696
 697                 return '<span class="mw-input-with-label">' . Xml::checkLabel(
 698                         $this->msg( $message, '' )->text(),
 699                         $name,
 700                         $name,
 701                         (int)$value
 702                 ) . '</span>';
 703         }
 704
 705         /**
 706          * Count the number of paired items on a user's watchlist.
 707          * The assumption made here is that when a subject page is watched a talk page is also watched.
 708          * Hence the number of individual items is halved.
 709          *
 710          * @return int
 711          */
 712         protected function countItems() {
 713                 $store = MediaWikiServices::getInstance()->getWatchedItemStore();
 714                 $count = $store->countWatchedItems( $this->getUser() );
 715                 return floor( $count / 2 );
 716         }
 717 }