includes/page/ImagePage.php

   1 <?php
   2 /**
   3  * Special handling for file description pages.
   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 use Wikimedia\Rdbms\ResultWrapper;
  24
  25 /**
  26  * Class for viewing MediaWiki file description pages
  27  *
  28  * @ingroup Media
  29  */
  30 class ImagePage extends Article {
  31         /** @var File */
  32         private $displayImg;
  33
  34         /** @var FileRepo */
  35         private $repo;
  36
  37         /** @var bool */
  38         private $fileLoaded;
  39
  40         /** @var bool */
  41         protected $mExtraDescription = false;
  42
  43         /**
  44          * @var WikiFilePage
  45          */
  46         protected $mPage;
  47
  48         /**
  49          * @param Title $title
  50          * @return WikiFilePage
  51          */
  52         protected function newPage( Title $title ) {
  53                 // Overload mPage with a file-specific page
  54                 return new WikiFilePage( $title );
  55         }
  56
  57         /**
  58          * @param File $file
  59          * @return void
  60          */
  61         public function setFile( $file ) {
  62                 $this->mPage->setFile( $file );
  63                 $this->displayImg = $file;
  64                 $this->fileLoaded = true;
  65         }
  66
  67         protected function loadFile() {
  68                 if ( $this->fileLoaded ) {
  69                         return;
  70                 }
  71                 $this->fileLoaded = true;
  72
  73                 $this->displayImg = $img = false;
  74
  75                 Hooks::run( 'ImagePageFindFile', [ $this, &$img, &$this->displayImg ] );
  76                 if ( !$img ) { // not set by hook?
  77                         $img = wfFindFile( $this->getTitle() );
  78                         if ( !$img ) {
  79                                 $img = wfLocalFile( $this->getTitle() );
  80                         }
  81                 }
  82                 $this->mPage->setFile( $img );
  83                 if ( !$this->displayImg ) { // not set by hook?
  84                         $this->displayImg = $img;
  85                 }
  86                 $this->repo = $img->getRepo();
  87         }
  88
  89         /**
  90          * Handler for action=render
  91          * Include body text only; none of the image extras
  92          */
  93         public function render() {
  94                 $this->getContext()->getOutput()->setArticleBodyOnly( true );
  95                 parent::view();
  96         }
  97
  98         public function view() {
  99                 global $wgShowEXIF;
 100
 101                 $out = $this->getContext()->getOutput();
 102                 $request = $this->getContext()->getRequest();
 103                 $diff = $request->getVal( 'diff' );
 104                 $diffOnly = $request->getBool(
 105                         'diffonly',
 106                         $this->getContext()->getUser()->getOption( 'diffonly' )
 107                 );
 108
 109                 if ( $this->getTitle()->getNamespace() != NS_FILE || ( $diff !== null && $diffOnly ) ) {
 110                         parent::view();
 111                         return;
 112                 }
 113
 114                 $this->loadFile();
 115
 116                 if ( $this->getTitle()->getNamespace() == NS_FILE && $this->mPage->getFile()->getRedirected() ) {
 117                         if ( $this->getTitle()->getDBkey() == $this->mPage->getFile()->getName() || $diff !== null ) {
 118                                 // mTitle is the same as the redirect target so ask Article
 119                                 // to perform the redirect for us.
 120                                 $request->setVal( 'diffonly', 'true' );
 121                                 parent::view();
 122                                 return;
 123                         } else {
 124                                 // mTitle is not the same as the redirect target so it is
 125                                 // probably the redirect page itself. Fake the redirect symbol
 126                                 $out->setPageTitle( $this->getTitle()->getPrefixedText() );
 127                                 $out->addHTML( $this->viewRedirect(
 128                                         Title::makeTitle( NS_FILE, $this->mPage->getFile()->getName() ),
 129                                         /* $appendSubtitle */ true,
 130                                         /* $forceKnown */ true )
 131                                 );
 132                                 $this->mPage->doViewUpdates( $this->getContext()->getUser(), $this->getOldID() );
 133                                 return;
 134                         }
 135                 }
 136
 137                 if ( $wgShowEXIF && $this->displayImg->exists() ) {
 138                         // @todo FIXME: Bad interface, see note on MediaHandler::formatMetadata().
 139                         $formattedMetadata = $this->displayImg->formatMetadata( $this->getContext() );
 140                         $showmeta = $formattedMetadata !== false;
 141                 } else {
 142                         $showmeta = false;
 143                 }
 144
 145                 if ( !$diff && $this->displayImg->exists() ) {
 146                         $out->addHTML( $this->showTOC( $showmeta ) );
 147                 }
 148
 149                 if ( !$diff ) {
 150                         $this->openShowImage();
 151                 }
 152
 153                 # No need to display noarticletext, we use our own message, output in openShowImage()
 154                 if ( $this->mPage->getId() ) {
 155                         # NS_FILE is in the user language, but this section (the actual wikitext)
 156                         # should be in page content language
 157                         $pageLang = $this->getTitle()->getPageViewLanguage();
 158                         $out->addHTML( Xml::openElement( 'div', [ 'id' => 'mw-imagepage-content',
 159                                 'lang' => $pageLang->getHtmlCode(), 'dir' => $pageLang->getDir(),
 160                                 'class' => 'mw-content-' . $pageLang->getDir() ] ) );
 161
 162                         parent::view();
 163
 164                         $out->addHTML( Xml::closeElement( 'div' ) );
 165                 } else {
 166                         # Just need to set the right headers
 167                         $out->setArticleFlag( true );
 168                         $out->setPageTitle( $this->getTitle()->getPrefixedText() );
 169                         $this->mPage->doViewUpdates( $this->getContext()->getUser(), $this->getOldID() );
 170                 }
 171
 172                 # Show shared description, if needed
 173                 if ( $this->mExtraDescription ) {
 174                         $fol = $this->getContext()->msg( 'shareddescriptionfollows' );
 175                         if ( !$fol->isDisabled() ) {
 176                                 $out->addWikiText( $fol->plain() );
 177                         }
 178                         $out->addHTML( '<div id="shared-image-desc">' . $this->mExtraDescription . "</div>\n" );
 179                 }
 180
 181                 $this->closeShowImage();
 182                 $this->imageHistory();
 183                 // TODO: Cleanup the following
 184
 185                 $out->addHTML( Xml::element( 'h2',
 186                         [ 'id' => 'filelinks' ],
 187                                 $this->getContext()->msg( 'imagelinks' )->text() ) . "\n" );
 188                 $this->imageDupes();
 189                 # @todo FIXME: For some freaky reason, we can't redirect to foreign images.
 190                 # Yet we return metadata about the target. Definitely an issue in the FileRepo
 191                 $this->imageLinks();
 192
 193                 # Allow extensions to add something after the image links
 194                 $html = '';
 195                 Hooks::run( 'ImagePageAfterImageLinks', [ $this, &$html ] );
 196                 if ( $html ) {
 197                         $out->addHTML( $html );
 198                 }
 199
 200                 if ( $showmeta ) {
 201                         $out->addHTML( Xml::element(
 202                                 'h2',
 203                                 [ 'id' => 'metadata' ],
 204                                         $this->getContext()->msg( 'metadata' )->text() ) . "\n" );
 205                         $out->addWikiText( $this->makeMetadataTable( $formattedMetadata ) );
 206                         $out->addModules( [ 'mediawiki.action.view.metadata' ] );
 207                 }
 208
 209                 // Add remote Filepage.css
 210                 if ( !$this->repo->isLocal() ) {
 211                         $css = $this->repo->getDescriptionStylesheetUrl();
 212                         if ( $css ) {
 213                                 $out->addStyle( $css );
 214                         }
 215                 }
 216
 217                 $out->addModuleStyles( [
 218                         'filepage', // always show the local local Filepage.css, T31277
 219                         'mediawiki.action.view.filepage', // Add MediaWiki styles for a file page
 220                 ] );
 221         }
 222
 223         /**
 224          * @return File
 225          */
 226         public function getDisplayedFile() {
 227                 $this->loadFile();
 228                 return $this->displayImg;
 229         }
 230
 231         /**
 232          * Create the TOC
 233          *
 234          * @param bool $metadata Whether or not to show the metadata link
 235          * @return string
 236          */
 237         protected function showTOC( $metadata ) {
 238                 $r = [
 239                         '<li><a href="#file">' . $this->getContext()->msg( 'file-anchor-link' )->escaped() . '</a></li>',
 240                         '<li><a href="#filehistory">' . $this->getContext()->msg( 'filehist' )->escaped() . '</a></li>',
 241                         '<li><a href="#filelinks">' . $this->getContext()->msg( 'imagelinks' )->escaped() . '</a></li>',
 242                 ];
 243
 244                 Hooks::run( 'ImagePageShowTOC', [ $this, &$r ] );
 245
 246                 if ( $metadata ) {
 247                         $r[] = '<li><a href="#metadata">' .
 248                                 $this->getContext()->msg( 'metadata' )->escaped() .
 249                                 '</a></li>';
 250                 }
 251
 252                 return '<ul id="filetoc">' . implode( "\n", $r ) . '</ul>';
 253         }
 254
 255         /**
 256          * Make a table with metadata to be shown in the output page.
 257          *
 258          * @todo FIXME: Bad interface, see note on MediaHandler::formatMetadata().
 259          *
 260          * @param array $metadata The array containing the Exif data
 261          * @return string The metadata table. This is treated as Wikitext (!)
 262          */
 263         protected function makeMetadataTable( $metadata ) {
 264                 $r = "<div class=\"mw-imagepage-section-metadata\">";
 265                 $r .= $this->getContext()->msg( 'metadata-help' )->plain();
 266                 $r .= "<table id=\"mw_metadata\" class=\"mw_metadata\">\n";
 267                 foreach ( $metadata as $type => $stuff ) {
 268                         foreach ( $stuff as $v ) {
 269                                 # @todo FIXME: Why is this using escapeId for a class?!
 270                                 $class = Sanitizer::escapeId( $v['id'] );
 271                                 if ( $type == 'collapsed' ) {
 272                                         // Handled by mediawiki.action.view.metadata module.
 273                                         $class .= ' collapsable';
 274                                 }
 275                                 $r .= "<tr class=\"$class\">\n";
 276                                 $r .= "<th>{$v['name']}</th>\n";
 277                                 $r .= "<td>{$v['value']}</td>\n</tr>";
 278                         }
 279                 }
 280                 $r .= "</table>\n</div>\n";
 281                 return $r;
 282         }
 283
 284         /**
 285          * Overloading Article's getContentObject method.
 286          *
 287          * Omit noarticletext if sharedupload; text will be fetched from the
 288          * shared upload server if possible.
 289          * @return string
 290          */
 291         public function getContentObject() {
 292                 $this->loadFile();
 293                 if ( $this->mPage->getFile() && !$this->mPage->getFile()->isLocal() && 0 == $this->getId() ) {
 294                         return null;
 295                 }
 296                 return parent::getContentObject();
 297         }
 298
 299         protected function openShowImage() {
 300                 global $wgEnableUploads, $wgSend404Code, $wgSVGMaxSize;
 301
 302                 $this->loadFile();
 303                 $out = $this->getContext()->getOutput();
 304                 $user = $this->getContext()->getUser();
 305                 $lang = $this->getContext()->getLanguage();
 306                 $dirmark = $lang->getDirMarkEntity();
 307                 $request = $this->getContext()->getRequest();
 308
 309                 $max = $this->getImageLimitsFromOption( $user, 'imagesize' );
 310                 $maxWidth = $max[0];
 311                 $maxHeight = $max[1];
 312
 313                 if ( $this->displayImg->exists() ) {
 314                         # image
 315                         $page = $request->getIntOrNull( 'page' );
 316                         if ( is_null( $page ) ) {
 317                                 $params = [];
 318                                 $page = 1;
 319                         } else {
 320                                 $params = [ 'page' => $page ];
 321                         }
 322
 323                         $renderLang = $request->getVal( 'lang' );
 324                         if ( !is_null( $renderLang ) ) {
 325                                 $handler = $this->displayImg->getHandler();
 326                                 if ( $handler && $handler->validateParam( 'lang', $renderLang ) ) {
 327                                         $params['lang'] = $renderLang;
 328                                 } else {
 329                                         $renderLang = null;
 330                                 }
 331                         }
 332
 333                         $width_orig = $this->displayImg->getWidth( $page );
 334                         $width = $width_orig;
 335                         $height_orig = $this->displayImg->getHeight( $page );
 336                         $height = $height_orig;
 337
 338                         $filename = wfEscapeWikiText( $this->displayImg->getName() );
 339                         $linktext = $filename;
 340
 341                         // Avoid PHP 7.1 warning from passing $this by reference
 342                         $imagePage = $this;
 343
 344                         Hooks::run( 'ImageOpenShowImageInlineBefore', [ &$imagePage, &$out ] );
 345
 346                         if ( $this->displayImg->allowInlineDisplay() ) {
 347                                 # image
 348                                 # "Download high res version" link below the image
 349                                 # $msgsize = $this->getContext()->msg( 'file-info-size', $width_orig, $height_orig,
 350                                 #   Linker::formatSize( $this->displayImg->getSize() ), $mime )->escaped();
 351                                 # We'll show a thumbnail of this image
 352                                 if ( $width > $maxWidth || $height > $maxHeight || $this->displayImg->isVectorized() ) {
 353                                         list( $width, $height ) = $this->getDisplayWidthHeight(
 354                                                 $maxWidth, $maxHeight, $width, $height
 355                                         );
 356                                         $linktext = $this->getContext()->msg( 'show-big-image' )->escaped();
 357
 358                                         $thumbSizes = $this->getThumbSizes( $width_orig, $height_orig );
 359                                         # Generate thumbnails or thumbnail links as needed...
 360                                         $otherSizes = [];
 361                                         foreach ( $thumbSizes as $size ) {
 362                                                 // We include a thumbnail size in the list, if it is
 363                                                 // less than or equal to the original size of the image
 364                                                 // asset ($width_orig/$height_orig). We also exclude
 365                                                 // the current thumbnail's size ($width/$height)
 366                                                 // since that is added to the message separately, so
 367                                                 // it can be denoted as the current size being shown.
 368                                                 // Vectorized images are limited by $wgSVGMaxSize big,
 369                                                 // so all thumbs less than or equal that are shown.
 370                                                 if ( ( ( $size[0] <= $width_orig && $size[1] <= $height_orig )
 371                                                                 || ( $this->displayImg->isVectorized()
 372                                                                         && max( $size[0], $size[1] ) <= $wgSVGMaxSize )
 373                                                         )
 374                                                         && $size[0] != $width && $size[1] != $height
 375                                                 ) {
 376                                                         $sizeLink = $this->makeSizeLink( $params, $size[0], $size[1] );
 377                                                         if ( $sizeLink ) {
 378                                                                 $otherSizes[] = $sizeLink;
 379                                                         }
 380                                                 }
 381                                         }
 382                                         $otherSizes = array_unique( $otherSizes );
 383
 384                                         $sizeLinkBigImagePreview = $this->makeSizeLink( $params, $width, $height );
 385                                         $msgsmall = $this->getThumbPrevText( $params, $sizeLinkBigImagePreview );
 386                                         if ( count( $otherSizes ) ) {
 387                                                 $msgsmall .= ' ' .
 388                                                 Html::rawElement(
 389                                                         'span',
 390                                                         [ 'class' => 'mw-filepage-other-resolutions' ],
 391                                                         $this->getContext()->msg( 'show-big-image-other' )
 392                                                                 ->rawParams( $lang->pipeList( $otherSizes ) )
 393                                                                 ->params( count( $otherSizes ) )
 394                                                                 ->parse()
 395                                                 );
 396                                         }
 397                                 } elseif ( $width == 0 && $height == 0 ) {
 398                                         # Some sort of audio file that doesn't have dimensions
 399                                         # Don't output a no hi res message for such a file
 400                                         $msgsmall = '';
 401                                 } else {
 402                                         # Image is small enough to show full size on image page
 403                                         $msgsmall = $this->getContext()->msg( 'file-nohires' )->parse();
 404                                 }
 405
 406                                 $params['width'] = $width;
 407                                 $params['height'] = $height;
 408                                 $thumbnail = $this->displayImg->transform( $params );
 409                                 Linker::processResponsiveImages( $this->displayImg, $thumbnail, $params );
 410
 411                                 $anchorclose = Html::rawElement(
 412                                         'div',
 413                                         [ 'class' => 'mw-filepage-resolutioninfo' ],
 414                                         $msgsmall
 415                                 );
 416
 417                                 $isMulti = $this->displayImg->isMultipage() && $this->displayImg->pageCount() > 1;
 418                                 if ( $isMulti ) {
 419                                         $out->addModules( 'mediawiki.page.image.pagination' );
 420                                         $out->addHTML( '<table class="multipageimage"><tr><td>' );
 421                                 }
 422
 423                                 if ( $thumbnail ) {
 424                                         $options = [
 425                                                 'alt' => $this->displayImg->getTitle()->getPrefixedText(),
 426                                                 'file-link' => true,
 427                                         ];
 428                                         $out->addHTML( '<div class="fullImageLink" id="file">' .
 429                                                 $thumbnail->toHtml( $options ) .
 430                                                 $anchorclose . "</div>\n" );
 431                                 }
 432
 433                                 if ( $isMulti ) {
 434                                         $count = $this->displayImg->pageCount();
 435
 436                                         if ( $page > 1 ) {
 437                                                 $label = $out->parse( $this->getContext()->msg( 'imgmultipageprev' )->text(), false );
 438                                                 // on the client side, this link is generated in ajaxifyPageNavigation()
 439                                                 // in the mediawiki.page.image.pagination module
 440                                                 $link = Linker::linkKnown(
 441                                                         $this->getTitle(),
 442                                                         $label,
 443                                                         [],
 444                                                         [ 'page' => $page - 1 ]
 445                                                 );
 446                                                 $thumb1 = Linker::makeThumbLinkObj(
 447                                                         $this->getTitle(),
 448                                                         $this->displayImg,
 449                                                         $link,
 450                                                         $label,
 451                                                         'none',
 452                                                         [ 'page' => $page - 1 ]
 453                                                 );
 454                                         } else {
 455                                                 $thumb1 = '';
 456                                         }
 457
 458                                         if ( $page < $count ) {
 459                                                 $label = $this->getContext()->msg( 'imgmultipagenext' )->text();
 460                                                 $link = Linker::linkKnown(
 461                                                         $this->getTitle(),
 462                                                         $label,
 463                                                         [],
 464                                                         [ 'page' => $page + 1 ]
 465                                                 );
 466                                                 $thumb2 = Linker::makeThumbLinkObj(
 467                                                         $this->getTitle(),
 468                                                         $this->displayImg,
 469                                                         $link,
 470                                                         $label,
 471                                                         'none',
 472                                                         [ 'page' => $page + 1 ]
 473                                                 );
 474                                         } else {
 475                                                 $thumb2 = '';
 476                                         }
 477
 478                                         global $wgScript;
 479
 480                                         $formParams = [
 481                                                 'name' => 'pageselector',
 482                                                 'action' => $wgScript,
 483                                         ];
 484                                         $options = [];
 485                                         for ( $i = 1; $i <= $count; $i++ ) {
 486                                                 $options[] = Xml::option( $lang->formatNum( $i ), $i, $i == $page );
 487                                         }
 488                                         $select = Xml::tags( 'select',
 489                                                 [ 'id' => 'pageselector', 'name' => 'page' ],
 490                                                 implode( "\n", $options ) );
 491
 492                                         $out->addHTML(
 493                                                 '</td><td><div class="multipageimagenavbox">' .
 494                                                 Xml::openElement( 'form', $formParams ) .
 495                                                 Html::hidden( 'title', $this->getTitle()->getPrefixedDBkey() ) .
 496                                                 $this->getContext()->msg( 'imgmultigoto' )->rawParams( $select )->parse() .
 497                                                 Xml::submitButton( $this->getContext()->msg( 'imgmultigo' )->text() ) .
 498                                                 Xml::closeElement( 'form' ) .
 499                                                 "<hr />$thumb1\n$thumb2<br style=\"clear: both\" /></div></td></tr></table>"
 500                                         );
 501                                 }
 502                         } elseif ( $this->displayImg->isSafeFile() ) {
 503                                 # if direct link is allowed but it's not a renderable image, show an icon.
 504                                 $icon = $this->displayImg->iconThumb();
 505
 506                                 $out->addHTML( '<div class="fullImageLink" id="file">' .
 507                                         $icon->toHtml( [ 'file-link' => true ] ) .
 508                                         "</div>\n" );
 509                         }
 510
 511                         $longDesc = $this->getContext()->msg( 'parentheses', $this->displayImg->getLongDesc() )->text();
 512
 513                         $handler = $this->displayImg->getHandler();
 514
 515                         // If this is a filetype with potential issues, warn the user.
 516                         if ( $handler ) {
 517                                 $warningConfig = $handler->getWarningConfig( $this->displayImg );
 518
 519                                 if ( $warningConfig !== null ) {
 520                                         // The warning will be displayed via CSS and JavaScript.
 521                                         // We just need to tell the client side what message to use.
 522                                         $output = $this->getContext()->getOutput();
 523                                         $output->addJsConfigVars( 'wgFileWarning', $warningConfig );
 524                                         $output->addModules( $warningConfig['module'] );
 525                                         $output->addModules( 'mediawiki.filewarning' );
 526                                 }
 527                         }
 528
 529                         $medialink = "[[Media:$filename|$linktext]]";
 530
 531                         if ( !$this->displayImg->isSafeFile() ) {
 532                                 $warning = $this->getContext()->msg( 'mediawarning' )->plain();
 533                                 // dirmark is needed here to separate the file name, which
 534                                 // most likely ends in Latin characters, from the description,
 535                                 // which may begin with the file type. In RTL environment
 536                                 // this will get messy.
 537                                 // The dirmark, however, must not be immediately adjacent
 538                                 // to the filename, because it can get copied with it.
 539                                 // See T27277.
 540                                 // @codingStandardsIgnoreStart Ignore long line
 541                                 $out->addWikiText( <<<EOT
 542 <div class="fullMedia"><span class="dangerousLink">{$medialink}</span> $dirmark<span class="fileInfo">$longDesc</span></div>
 543 <div class="mediaWarning">$warning</div>
 544 EOT
 545                                 );
 546                                 // @codingStandardsIgnoreEnd
 547                         } else {
 548                                 $out->addWikiText( <<<EOT
 549 <div class="fullMedia">{$medialink} {$dirmark}<span class="fileInfo">$longDesc</span>
 550 </div>
 551 EOT
 552                                 );
 553                         }
 554
 555                         $renderLangOptions = $this->displayImg->getAvailableLanguages();
 556                         if ( count( $renderLangOptions ) >= 1 ) {
 557                                 $currentLanguage = $renderLang;
 558                                 $defaultLang = $this->displayImg->getDefaultRenderLanguage();
 559                                 if ( is_null( $currentLanguage ) ) {
 560                                         $currentLanguage = $defaultLang;
 561                                 }
 562                                 $out->addHTML( $this->doRenderLangOpt( $renderLangOptions, $currentLanguage, $defaultLang ) );
 563                         }
 564
 565                         // Add cannot animate thumbnail warning
 566                         if ( !$this->displayImg->canAnimateThumbIfAppropriate() ) {
 567                                 // Include the extension so wiki admins can
 568                                 // customize it on a per file-type basis
 569                                 // (aka say things like use format X instead).
 570                                 // additionally have a specific message for
 571                                 // file-no-thumb-animation-gif
 572                                 $ext = $this->displayImg->getExtension();
 573                                 $noAnimMesg = wfMessageFallback(
 574                                         'file-no-thumb-animation-' . $ext,
 575                                         'file-no-thumb-animation'
 576                                 )->plain();
 577
 578                                 $out->addWikiText( <<<EOT
 579 <div class="mw-noanimatethumb">{$noAnimMesg}</div>
 580 EOT
 581                                 );
 582                         }
 583
 584                         if ( !$this->displayImg->isLocal() ) {
 585                                 $this->printSharedImageText();
 586                         }
 587                 } else {
 588                         # Image does not exist
 589                         if ( !$this->getId() ) {
 590                                 $dbr = wfGetDB( DB_REPLICA );
 591
 592                                 # No article exists either
 593                                 # Show deletion log to be consistent with normal articles
 594                                 LogEventsList::showLogExtract(
 595                                         $out,
 596                                         [ 'delete', 'move' ],
 597                                         $this->getTitle()->getPrefixedText(),
 598                                         '',
 599                                         [ 'lim' => 10,
 600                                                 'conds' => [ 'log_action != ' . $dbr->addQuotes( 'revision' ) ],
 601                                                 'showIfEmpty' => false,
 602                                                 'msgKey' => [ 'moveddeleted-notice' ]
 603                                         ]
 604                                 );
 605                         }
 606
 607                         if ( $wgEnableUploads && $user->isAllowed( 'upload' ) ) {
 608                                 // Only show an upload link if the user can upload
 609                                 $uploadTitle = SpecialPage::getTitleFor( 'Upload' );
 610                                 $nofile = [
 611                                         'filepage-nofile-link',
 612                                         $uploadTitle->getFullURL( [ 'wpDestFile' => $this->mPage->getFile()->getName() ] )
 613                                 ];
 614                         } else {
 615                                 $nofile = 'filepage-nofile';
 616                         }
 617                         // Note, if there is an image description page, but
 618                         // no image, then this setRobotPolicy is overridden
 619                         // by Article::View().
 620                         $out->setRobotPolicy( 'noindex,nofollow' );
 621                         $out->wrapWikiMsg( "<div id='mw-imagepage-nofile' class='plainlinks'>\n$1\n</div>", $nofile );
 622                         if ( !$this->getId() && $wgSend404Code ) {
 623                                 // If there is no image, no shared image, and no description page,
 624                                 // output a 404, to be consistent with Article::showMissingArticle.
 625                                 $request->response()->statusHeader( 404 );
 626                         }
 627                 }
 628                 $out->setFileVersion( $this->displayImg );
 629         }
 630
 631         /**
 632          * Make the text under the image to say what size preview
 633          *
 634          * @param $params array parameters for thumbnail
 635          * @param $sizeLinkBigImagePreview HTML for the current size
 636          * @return string HTML output
 637          */
 638         private function getThumbPrevText( $params, $sizeLinkBigImagePreview ) {
 639                 if ( $sizeLinkBigImagePreview ) {
 640                         // Show a different message of preview is different format from original.
 641                         $previewTypeDiffers = false;
 642                         $origExt = $thumbExt = $this->displayImg->getExtension();
 643                         if ( $this->displayImg->getHandler() ) {
 644                                 $origMime = $this->displayImg->getMimeType();
 645                                 $typeParams = $params;
 646                                 $this->displayImg->getHandler()->normaliseParams( $this->displayImg, $typeParams );
 647                                 list( $thumbExt, $thumbMime ) = $this->displayImg->getHandler()->getThumbType(
 648                                         $origExt, $origMime, $typeParams );
 649                                 if ( $thumbMime !== $origMime ) {
 650                                         $previewTypeDiffers = true;
 651                                 }
 652                         }
 653                         if ( $previewTypeDiffers ) {
 654                                 return $this->getContext()->msg( 'show-big-image-preview-differ' )->
 655                                         rawParams( $sizeLinkBigImagePreview )->
 656                                         params( strtoupper( $origExt ) )->
 657                                         params( strtoupper( $thumbExt ) )->
 658                                         parse();
 659                         } else {
 660                                 return $this->getContext()->msg( 'show-big-image-preview' )->
 661                                         rawParams( $sizeLinkBigImagePreview )->
 662                                 parse();
 663                         }
 664                 } else {
 665                         return '';
 666                 }
 667         }
 668
 669         /**
 670          * Creates an thumbnail of specified size and returns an HTML link to it
 671          * @param array $params Scaler parameters
 672          * @param int $width
 673          * @param int $height
 674          * @return string
 675          */
 676         private function makeSizeLink( $params, $width, $height ) {
 677                 $params['width'] = $width;
 678                 $params['height'] = $height;
 679                 $thumbnail = $this->displayImg->transform( $params );
 680                 if ( $thumbnail && !$thumbnail->isError() ) {
 681                         return Html::rawElement( 'a', [
 682                                 'href' => $thumbnail->getUrl(),
 683                                 'class' => 'mw-thumbnail-link'
 684                                 ], $this->getContext()->msg( 'show-big-image-size' )->numParams(
 685                                         $thumbnail->getWidth(), $thumbnail->getHeight()
 686                                 )->parse() );
 687                 } else {
 688                         return '';
 689                 }
 690         }
 691
 692         /**
 693          * Show a notice that the file is from a shared repository
 694          */
 695         protected function printSharedImageText() {
 696                 $out = $this->getContext()->getOutput();
 697                 $this->loadFile();
 698
 699                 $descUrl = $this->mPage->getFile()->getDescriptionUrl();
 700                 $descText = $this->mPage->getFile()->getDescriptionText( $this->getContext()->getLanguage() );
 701
 702                 /* Add canonical to head if there is no local page for this shared file */
 703                 if ( $descUrl && $this->mPage->getId() == 0 ) {
 704                         $out->setCanonicalUrl( $descUrl );
 705                 }
 706
 707                 $wrap = "<div class=\"sharedUploadNotice\">\n$1\n</div>\n";
 708                 $repo = $this->mPage->getFile()->getRepo()->getDisplayName();
 709
 710                 if ( $descUrl &&
 711                         $descText &&
 712                         $this->getContext()->msg( 'sharedupload-desc-here' )->plain() !== '-'
 713                 ) {
 714                         $out->wrapWikiMsg( $wrap, [ 'sharedupload-desc-here', $repo, $descUrl ] );
 715                 } elseif ( $descUrl &&
 716                         $this->getContext()->msg( 'sharedupload-desc-there' )->plain() !== '-'
 717                 ) {
 718                         $out->wrapWikiMsg( $wrap, [ 'sharedupload-desc-there', $repo, $descUrl ] );
 719                 } else {
 720                         $out->wrapWikiMsg( $wrap, [ 'sharedupload', $repo ], ''/*BACKCOMPAT*/ );
 721                 }
 722
 723                 if ( $descText ) {
 724                         $this->mExtraDescription = $descText;
 725                 }
 726         }
 727
 728         public function getUploadUrl() {
 729                 $this->loadFile();
 730                 $uploadTitle = SpecialPage::getTitleFor( 'Upload' );
 731                 return $uploadTitle->getFullURL( [
 732                         'wpDestFile' => $this->mPage->getFile()->getName(),
 733                         'wpForReUpload' => 1
 734                 ] );
 735         }
 736
 737         /**
 738          * Print out the various links at the bottom of the image page, e.g. reupload,
 739          * external editing (and instructions link) etc.
 740          */
 741         protected function uploadLinksBox() {
 742                 global $wgEnableUploads;
 743
 744                 if ( !$wgEnableUploads ) {
 745                         return;
 746                 }
 747
 748                 $this->loadFile();
 749                 if ( !$this->mPage->getFile()->isLocal() ) {
 750                         return;
 751                 }
 752
 753                 $out = $this->getContext()->getOutput();
 754                 $out->addHTML( "<ul>\n" );
 755
 756                 # "Upload a new version of this file" link
 757                 $canUpload = $this->getTitle()->quickUserCan( 'upload', $this->getContext()->getUser() );
 758                 if ( $canUpload && UploadBase::userCanReUpload(
 759                                 $this->getContext()->getUser(),
 760                                 $this->mPage->getFile() )
 761                 ) {
 762                         $ulink = Linker::makeExternalLink(
 763                                 $this->getUploadUrl(),
 764                                 $this->getContext()->msg( 'uploadnewversion-linktext' )->text()
 765                         );
 766                         $out->addHTML( "<li id=\"mw-imagepage-reupload-link\">"
 767                                 . "<div class=\"plainlinks\">{$ulink}</div></li>\n" );
 768                 } else {
 769                         $out->addHTML( "<li id=\"mw-imagepage-upload-disallowed\">"
 770                                 . $this->getContext()->msg( 'upload-disallowed-here' )->escaped() . "</li>\n" );
 771                 }
 772
 773                 $out->addHTML( "</ul>\n" );
 774         }
 775
 776         /**
 777          * For overloading
 778          */
 779         protected function closeShowImage() {
 780         }
 781
 782         /**
 783          * If the page we've just displayed is in the "Image" namespace,
 784          * we follow it with an upload history of the image and its usage.
 785          */
 786         protected function imageHistory() {
 787                 $this->loadFile();
 788                 $out = $this->getContext()->getOutput();
 789                 $pager = new ImageHistoryPseudoPager( $this );
 790                 $out->addHTML( $pager->getBody() );
 791                 $out->preventClickjacking( $pager->getPreventClickjacking() );
 792
 793                 $this->mPage->getFile()->resetHistory(); // free db resources
 794
 795                 # Exist check because we don't want to show this on pages where an image
 796                 # doesn't exist along with the noimage message, that would suck. -ævar
 797                 if ( $this->mPage->getFile()->exists() ) {
 798                         $this->uploadLinksBox();
 799                 }
 800         }
 801
 802         /**
 803          * @param string $target
 804          * @param int $limit
 805          * @return ResultWrapper
 806          */
 807         protected function queryImageLinks( $target, $limit ) {
 808                 $dbr = wfGetDB( DB_REPLICA );
 809
 810                 return $dbr->select(
 811                         [ 'imagelinks', 'page' ],
 812                         [ 'page_namespace', 'page_title', 'il_to' ],
 813                         [ 'il_to' => $target, 'il_from = page_id' ],
 814                         __METHOD__,
 815                         [ 'LIMIT' => $limit + 1, 'ORDER BY' => 'il_from', ]
 816                 );
 817         }
 818
 819         protected function imageLinks() {
 820                 $limit = 100;
 821
 822                 $out = $this->getContext()->getOutput();
 823
 824                 $rows = [];
 825                 $redirects = [];
 826                 foreach ( $this->getTitle()->getRedirectsHere( NS_FILE ) as $redir ) {
 827                         $redirects[$redir->getDBkey()] = [];
 828                         $rows[] = (object)[
 829                                 'page_namespace' => NS_FILE,
 830                                 'page_title' => $redir->getDBkey(),
 831                         ];
 832                 }
 833
 834                 $res = $this->queryImageLinks( $this->getTitle()->getDBkey(), $limit + 1 );
 835                 foreach ( $res as $row ) {
 836                         $rows[] = $row;
 837                 }
 838                 $count = count( $rows );
 839
 840                 $hasMore = $count > $limit;
 841                 if ( !$hasMore && count( $redirects ) ) {
 842                         $res = $this->queryImageLinks( array_keys( $redirects ),
 843                                 $limit - count( $rows ) + 1 );
 844                         foreach ( $res as $row ) {
 845                                 $redirects[$row->il_to][] = $row;
 846                                 $count++;
 847                         }
 848                         $hasMore = ( $res->numRows() + count( $rows ) ) > $limit;
 849                 }
 850
 851                 if ( $count == 0 ) {
 852                         $out->wrapWikiMsg(
 853                                 Html::rawElement( 'div',
 854                                         [ 'id' => 'mw-imagepage-nolinkstoimage' ], "\n$1\n" ),
 855                                 'nolinkstoimage'
 856                         );
 857                         return;
 858                 }
 859
 860                 $out->addHTML( "<div id='mw-imagepage-section-linkstoimage'>\n" );
 861                 if ( !$hasMore ) {
 862                         $out->addWikiMsg( 'linkstoimage', $count );
 863                 } else {
 864                         // More links than the limit. Add a link to [[Special:Whatlinkshere]]
 865                         $out->addWikiMsg( 'linkstoimage-more',
 866                                 $this->getContext()->getLanguage()->formatNum( $limit ),
 867                                 $this->getTitle()->getPrefixedDBkey()
 868                         );
 869                 }
 870
 871                 $out->addHTML(
 872                         Html::openElement( 'ul',
 873                                 [ 'class' => 'mw-imagepage-linkstoimage' ] ) . "\n"
 874                 );
 875                 $count = 0;
 876
 877                 // Sort the list by namespace:title
 878                 usort( $rows, [ $this, 'compare' ] );
 879
 880                 // Create links for every element
 881                 $currentCount = 0;
 882                 foreach ( $rows as $element ) {
 883                         $currentCount++;
 884                         if ( $currentCount > $limit ) {
 885                                 break;
 886                         }
 887
 888                         $query = [];
 889                         # Add a redirect=no to make redirect pages reachable
 890                         if ( isset( $redirects[$element->page_title] ) ) {
 891                                 $query['redirect'] = 'no';
 892                         }
 893                         $link = Linker::linkKnown(
 894                                 Title::makeTitle( $element->page_namespace, $element->page_title ),
 895                                 null, [], $query
 896                         );
 897                         if ( !isset( $redirects[$element->page_title] ) ) {
 898                                 # No redirects
 899                                 $liContents = $link;
 900                         } elseif ( count( $redirects[$element->page_title] ) === 0 ) {
 901                                 # Redirect without usages
 902                                 $liContents = $this->getContext()->msg( 'linkstoimage-redirect' )
 903                                         ->rawParams( $link, '' )
 904                                         ->parse();
 905                         } else {
 906                                 # Redirect with usages
 907                                 $li = '';
 908                                 foreach ( $redirects[$element->page_title] as $row ) {
 909                                         $currentCount++;
 910                                         if ( $currentCount > $limit ) {
 911                                                 break;
 912                                         }
 913
 914                                         $link2 = Linker::linkKnown( Title::makeTitle( $row->page_namespace, $row->page_title ) );
 915                                         $li .= Html::rawElement(
 916                                                 'li',
 917                                                 [ 'class' => 'mw-imagepage-linkstoimage-ns' . $element->page_namespace ],
 918                                                 $link2
 919                                                 ) . "\n";
 920                                 }
 921
 922                                 $ul = Html::rawElement(
 923                                         'ul',
 924                                         [ 'class' => 'mw-imagepage-redirectstofile' ],
 925                                         $li
 926                                         ) . "\n";
 927                                 $liContents = $this->getContext()->msg( 'linkstoimage-redirect' )->rawParams(
 928                                         $link, $ul )->parse();
 929                         }
 930                         $out->addHTML( Html::rawElement(
 931                                         'li',
 932                                         [ 'class' => 'mw-imagepage-linkstoimage-ns' . $element->page_namespace ],
 933                                         $liContents
 934                                 ) . "\n"
 935                         );
 936
 937                 };
 938                 $out->addHTML( Html::closeElement( 'ul' ) . "\n" );
 939                 $res->free();
 940
 941                 // Add a links to [[Special:Whatlinkshere]]
 942                 if ( $count > $limit ) {
 943                         $out->addWikiMsg( 'morelinkstoimage', $this->getTitle()->getPrefixedDBkey() );
 944                 }
 945                 $out->addHTML( Html::closeElement( 'div' ) . "\n" );
 946         }
 947
 948         protected function imageDupes() {
 949                 $this->loadFile();
 950                 $out = $this->getContext()->getOutput();
 951
 952                 $dupes = $this->mPage->getDuplicates();
 953                 if ( count( $dupes ) == 0 ) {
 954                         return;
 955                 }
 956
 957                 $out->addHTML( "<div id='mw-imagepage-section-duplicates'>\n" );
 958                 $out->addWikiMsg( 'duplicatesoffile',
 959                         $this->getContext()->getLanguage()->formatNum( count( $dupes ) ), $this->getTitle()->getDBkey()
 960                 );
 961                 $out->addHTML( "<ul class='mw-imagepage-duplicates'>\n" );
 962
 963                 /**
 964                  * @var $file File
 965                  */
 966                 foreach ( $dupes as $file ) {
 967                         $fromSrc = '';
 968                         if ( $file->isLocal() ) {
 969                                 $link = Linker::linkKnown( $file->getTitle() );
 970                         } else {
 971                                 $link = Linker::makeExternalLink( $file->getDescriptionUrl(),
 972                                         $file->getTitle()->getPrefixedText() );
 973                                 $fromSrc = $this->getContext()->msg(
 974                                         'shared-repo-from',
 975                                         $file->getRepo()->getDisplayName()
 976                                 )->text();
 977                         }
 978                         $out->addHTML( "<li>{$link} {$fromSrc}</li>\n" );
 979                 }
 980                 $out->addHTML( "</ul></div>\n" );
 981         }
 982
 983         /**
 984          * Delete the file, or an earlier version of it
 985          */
 986         public function delete() {
 987                 $file = $this->mPage->getFile();
 988                 if ( !$file->exists() || !$file->isLocal() || $file->getRedirected() ) {
 989                         // Standard article deletion
 990                         parent::delete();
 991                         return;
 992                 }
 993
 994                 $deleter = new FileDeleteForm( $file );
 995                 $deleter->execute();
 996         }
 997
 998         /**
 999          * Display an error with a wikitext description
1000          *
1001          * @param string $description
1002          */
1003         function showError( $description ) {
1004                 $out = $this->getContext()->getOutput();
1005                 $out->setPageTitle( $this->getContext()->msg( 'internalerror' ) );
1006                 $out->setRobotPolicy( 'noindex,nofollow' );
1007                 $out->setArticleRelated( false );
1008                 $out->enableClientCache( false );
1009                 $out->addWikiText( $description );
1010         }
1011
1012         /**
1013          * Callback for usort() to do link sorts by (namespace, title)
1014          * Function copied from Title::compare()
1015          *
1016          * @param object $a Object page to compare with
1017          * @param object $b Object page to compare with
1018          * @return int Result of string comparison, or namespace comparison
1019          */
1020         protected function compare( $a, $b ) {
1021                 if ( $a->page_namespace == $b->page_namespace ) {
1022                         return strcmp( $a->page_title, $b->page_title );
1023                 } else {
1024                         return $a->page_namespace - $b->page_namespace;
1025                 }
1026         }
1027
1028         /**
1029          * Returns the corresponding $wgImageLimits entry for the selected user option
1030          *
1031          * @param User $user
1032          * @param string $optionName Name of a option to check, typically imagesize or thumbsize
1033          * @return array
1034          * @since 1.21
1035          */
1036         public function getImageLimitsFromOption( $user, $optionName ) {
1037                 global $wgImageLimits;
1038
1039                 $option = $user->getIntOption( $optionName );
1040                 if ( !isset( $wgImageLimits[$option] ) ) {
1041                         $option = User::getDefaultOption( $optionName );
1042                 }
1043
1044                 // The user offset might still be incorrect, specially if
1045                 // $wgImageLimits got changed (see bug #8858).
1046                 if ( !isset( $wgImageLimits[$option] ) ) {
1047                         // Default to the first offset in $wgImageLimits
1048                         $option = 0;
1049                 }
1050
1051                 return isset( $wgImageLimits[$option] )
1052                         ? $wgImageLimits[$option]
1053                         : [ 800, 600 ]; // if nothing is set, fallback to a hardcoded default
1054         }
1055
1056         /**
1057          * Output a drop-down box for language options for the file
1058          *
1059          * @param array $langChoices Array of string language codes
1060          * @param string $curLang Language code file is being viewed in.
1061          * @param string $defaultLang Language code that image is rendered in by default
1062          * @return string HTML to insert underneath image.
1063          */
1064         protected function doRenderLangOpt( array $langChoices, $curLang, $defaultLang ) {
1065                 global $wgScript;
1066                 sort( $langChoices );
1067                 $curLang = wfBCP47( $curLang );
1068                 $defaultLang = wfBCP47( $defaultLang );
1069                 $opts = '';
1070                 $haveCurrentLang = false;
1071                 $haveDefaultLang = false;
1072
1073                 // We make a list of all the language choices in the file.
1074                 // Additionally if the default language to render this file
1075                 // is not included as being in this file (for example, in svgs
1076                 // usually the fallback content is the english content) also
1077                 // include a choice for that. Last of all, if we're viewing
1078                 // the file in a language not on the list, add it as a choice.
1079                 foreach ( $langChoices as $lang ) {
1080                         $code = wfBCP47( $lang );
1081                         $name = Language::fetchLanguageName( $code, $this->getContext()->getLanguage()->getCode() );
1082                         if ( $name !== '' ) {
1083                                 $display = $this->getContext()->msg( 'img-lang-opt', $code, $name )->text();
1084                         } else {
1085                                 $display = $code;
1086                         }
1087                         $opts .= "\n" . Xml::option( $display, $code, $curLang === $code );
1088                         if ( $curLang === $code ) {
1089                                 $haveCurrentLang = true;
1090                         }
1091                         if ( $defaultLang === $code ) {
1092                                 $haveDefaultLang = true;
1093                         }
1094                 }
1095                 if ( !$haveDefaultLang ) {
1096                         // Its hard to know if the content is really in the default language, or
1097                         // if its just unmarked content that could be in any language.
1098                         $opts = Xml::option(
1099                                         $this->getContext()->msg( 'img-lang-default' )->text(),
1100                                 $defaultLang,
1101                                 $defaultLang === $curLang
1102                         ) . $opts;
1103                 }
1104                 if ( !$haveCurrentLang && $defaultLang !== $curLang ) {
1105                         $name = Language::fetchLanguageName( $curLang, $this->getContext()->getLanguage()->getCode() );
1106                         if ( $name !== '' ) {
1107                                 $display = $this->getContext()->msg( 'img-lang-opt', $curLang, $name )->text();
1108                         } else {
1109                                 $display = $curLang;
1110                         }
1111                         $opts = Xml::option( $display, $curLang, true ) . $opts;
1112                 }
1113
1114                 $select = Html::rawElement(
1115                         'select',
1116                         [ 'id' => 'mw-imglangselector', 'name' => 'lang' ],
1117                         $opts
1118                 );
1119                 $submit = Xml::submitButton( $this->getContext()->msg( 'img-lang-go' )->text() );
1120
1121                 $formContents = $this->getContext()->msg( 'img-lang-info' )
1122                         ->rawParams( $select, $submit )
1123                         ->parse();
1124                 $formContents .= Html::hidden( 'title', $this->getTitle()->getPrefixedDBkey() );
1125
1126                 $langSelectLine = Html::rawElement( 'div', [ 'id' => 'mw-imglangselector-line' ],
1127                         Html::rawElement( 'form', [ 'action' => $wgScript ], $formContents )
1128                 );
1129                 return $langSelectLine;
1130         }
1131
1132         /**
1133          * Get the width and height to display image at.
1134          *
1135          * @note This method assumes that it is only called if one
1136          *  of the dimensions are bigger than the max, or if the
1137          *  image is vectorized.
1138          *
1139          * @param int $maxWidth Max width to display at
1140          * @param int $maxHeight Max height to display at
1141          * @param int $width Actual width of the image
1142          * @param int $height Actual height of the image
1143          * @throws MWException
1144          * @return array Array (width, height)
1145          */
1146         protected function getDisplayWidthHeight( $maxWidth, $maxHeight, $width, $height ) {
1147                 if ( !$maxWidth || !$maxHeight ) {
1148                         // should never happen
1149                         throw new MWException( 'Using a choice from $wgImageLimits that is 0x0' );
1150                 }
1151
1152                 if ( !$width || !$height ) {
1153                         return [ 0, 0 ];
1154                 }
1155
1156                 # Calculate the thumbnail size.
1157                 if ( $width <= $maxWidth && $height <= $maxHeight ) {
1158                         // Vectorized image, do nothing.
1159                 } elseif ( $width / $height >= $maxWidth / $maxHeight ) {
1160                         # The limiting factor is the width, not the height.
1161                         $height = round( $height * $maxWidth / $width );
1162                         $width = $maxWidth;
1163                         # Note that $height <= $maxHeight now.
1164                 } else {
1165                         $newwidth = floor( $width * $maxHeight / $height );
1166                         $height = round( $height * $newwidth / $width );
1167                         $width = $newwidth;
1168                         # Note that $height <= $maxHeight now, but might not be identical
1169                         # because of rounding.
1170                 }
1171                 return [ $width, $height ];
1172         }
1173
1174         /**
1175          * Get alternative thumbnail sizes.
1176          *
1177          * @note This will only list several alternatives if thumbnails are rendered on 404
1178          * @param int $origWidth Actual width of image
1179          * @param int $origHeight Actual height of image
1180          * @return array An array of [width, height] pairs.
1181          */
1182         protected function getThumbSizes( $origWidth, $origHeight ) {
1183                 global $wgImageLimits;
1184                 if ( $this->displayImg->getRepo()->canTransformVia404() ) {
1185                         $thumbSizes = $wgImageLimits;
1186                         // Also include the full sized resolution in the list, so
1187                         // that users know they can get it. This will link to the
1188                         // original file asset if mustRender() === false. In the case
1189                         // that we mustRender, some users have indicated that they would
1190                         // find it useful to have the full size image in the rendered
1191                         // image format.
1192                         $thumbSizes[] = [ $origWidth, $origHeight ];
1193                 } else {
1194                         # Creating thumb links triggers thumbnail generation.
1195                         # Just generate the thumb for the current users prefs.
1196                         $thumbSizes = [
1197                                 $this->getImageLimitsFromOption( $this->getContext()->getUser(), 'thumbsize' )
1198                         ];
1199                         if ( !$this->displayImg->mustRender() ) {
1200                                 // We can safely include a link to the "full-size" preview,
1201                                 // without actually rendering.
1202                                 $thumbSizes[] = [ $origWidth, $origHeight ];
1203                         }
1204                 }
1205                 return $thumbSizes;
1206         }
1207
1208         /**
1209          * @see WikiFilePage::getFile
1210          * @return bool|File
1211          */
1212         public function getFile() {
1213                 return $this->mPage->getFile();
1214         }
1215
1216         /**
1217          * @see WikiFilePage::isLocal
1218          * @return bool
1219          */
1220         public function isLocal() {
1221                 return $this->mPage->isLocal();
1222         }
1223
1224         /**
1225          * @see WikiFilePage::getDuplicates
1226          * @return array|null
1227          */
1228         public function getDuplicates() {
1229                 return $this->mPage->getDuplicates();
1230         }
1231
1232         /**
1233          * @see WikiFilePage::getForeignCategories
1234          * @return TitleArray|Title[]
1235          */
1236         public function getForeignCategories() {
1237                 $this->mPage->getForeignCategories();
1238         }
1239
1240 }