includes/ImagePage.php

   1 <?php
   2
   3 if ( !defined( 'MEDIAWIKI' ) )
   4         die( 1 );
   5
   6 /**
   7  * Special handling for image description pages
   8  *
   9  * @ingroup Media
  10  */
  11 class ImagePage extends Article {
  12
  13         /* private */ var $img;  // Image object
  14         /* private */ var $displayImg;
  15         /* private */ var $repo;
  16         /* private */ var $fileLoaded;
  17         var $mExtraDescription = false;
  18         var $dupes;
  19
  20         function __construct( $title ) {
  21                 parent::__construct( $title );
  22                 $this->dupes = null;
  23                 $this->repo = null;
  24         }
  25
  26         public function setFile( $file ) {
  27                 $this->displayImg = $file;
  28                 $this->img = $file;
  29                 $this->fileLoaded = true;
  30         }
  31
  32         protected function loadFile() {
  33                 if ( $this->fileLoaded ) {
  34                         return true;
  35                 }
  36                 $this->fileLoaded = true;
  37
  38                 $this->displayImg = $this->img = false;
  39                 wfRunHooks( 'ImagePageFindFile', array( $this, &$this->img, &$this->displayImg ) );
  40                 if ( !$this->img ) {
  41                         $this->img = wfFindFile( $this->mTitle );
  42                         if ( !$this->img ) {
  43                                 $this->img = wfLocalFile( $this->mTitle );
  44                         }
  45                 }
  46                 if ( !$this->displayImg ) {
  47                         $this->displayImg = $this->img;
  48                 }
  49                 $this->repo = $this->img->getRepo();
  50         }
  51
  52         /**
  53          * Handler for action=render
  54          * Include body text only; none of the image extras
  55          */
  56         public function render() {
  57                 global $wgOut;
  58                 $wgOut->setArticleBodyOnly( true );
  59                 parent::view();
  60         }
  61
  62         public function view() {
  63                 global $wgOut, $wgShowEXIF, $wgRequest, $wgUser;
  64
  65                 $diff = $wgRequest->getVal( 'diff' );
  66                 $diffOnly = $wgRequest->getBool( 'diffonly', $wgUser->getOption( 'diffonly' ) );
  67
  68                 if ( $this->mTitle->getNamespace() != NS_FILE || ( isset( $diff ) && $diffOnly ) ) {
  69                         return Article::view();
  70                 }
  71
  72                 $this->loadFile();
  73
  74                 if ( $this->mTitle->getNamespace() == NS_FILE && $this->img->getRedirected() ) {
  75                         if ( $this->mTitle->getDBkey() == $this->img->getName() || isset( $diff ) ) {
  76                                 // mTitle is the same as the redirect target so ask Article
  77                                 // to perform the redirect for us.
  78                                 $wgRequest->setVal( 'diffonly', 'true' );
  79                                 return Article::view();
  80                         } else {
  81                                 // mTitle is not the same as the redirect target so it is
  82                                 // probably the redirect page itself. Fake the redirect symbol
  83                                 $wgOut->setPageTitle( $this->mTitle->getPrefixedText() );
  84                                 $wgOut->addHTML( $this->viewRedirect( Title::makeTitle( NS_FILE, $this->img->getName() ),
  85                                         /* $appendSubtitle */ true, /* $forceKnown */ true ) );
  86                                 $this->viewUpdates();
  87                                 return;
  88                         }
  89                 }
  90
  91                 $this->showRedirectedFromHeader();
  92
  93                 if ( $wgShowEXIF && $this->displayImg->exists() ) {
  94                         // FIXME: bad interface, see note on MediaHandler::formatMetadata().
  95                         $formattedMetadata = $this->displayImg->formatMetadata();
  96                         $showmeta = $formattedMetadata !== false;
  97                 } else {
  98                         $showmeta = false;
  99                 }
 100
 101                 if ( !$diff && $this->displayImg->exists() )
 102                         $wgOut->addHTML( $this->showTOC( $showmeta ) );
 103
 104                 if ( !$diff )
 105                         $this->openShowImage();
 106
 107                 # No need to display noarticletext, we use our own message, output in openShowImage()
 108                 if ( $this->getID() ) {
 109                         Article::view();
 110                 } else {
 111                         # Just need to set the right headers
 112                         $wgOut->setArticleFlag( true );
 113                         $wgOut->setPageTitle( $this->mTitle->getPrefixedText() );
 114                         $this->viewUpdates();
 115                 }
 116
 117                 # Show shared description, if needed
 118                 if ( $this->mExtraDescription ) {
 119                         $fol = wfMsgNoTrans( 'shareddescriptionfollows' );
 120                         if ( $fol != '-' && !wfEmptyMsg( 'shareddescriptionfollows', $fol ) ) {
 121                                 $wgOut->addWikiText( $fol );
 122                         }
 123                         $wgOut->addHTML( '<div id="shared-image-desc">' . $this->mExtraDescription . "</div>\n" );
 124                 }
 125
 126                 $this->closeShowImage();
 127                 $this->imageHistory();
 128                 // TODO: Cleanup the following
 129
 130                 $wgOut->addHTML( Xml::element( 'h2',
 131                         array( 'id' => 'filelinks' ),
 132                         wfMsg( 'imagelinks' ) ) . "\n" );
 133                 $this->imageDupes();
 134                 # TODO! FIXME! For some freaky reason, we can't redirect to foreign images.
 135                 # Yet we return metadata about the target. Definitely an issue in the FileRepo
 136                 $this->imageRedirects();
 137                 $this->imageLinks();
 138
 139                 # Allow extensions to add something after the image links
 140                 $html = '';
 141                 wfRunHooks( 'ImagePageAfterImageLinks', array( $this, &$html ) );
 142                 if ( $html )
 143                         $wgOut->addHTML( $html );
 144
 145                 if ( $showmeta ) {
 146                         global $wgStylePath, $wgStyleVersion;
 147                         $expand = htmlspecialchars( Xml::escapeJsString( wfMsg( 'metadata-expand' ) ) );
 148                         $collapse = htmlspecialchars( Xml::escapeJsString( wfMsg( 'metadata-collapse' ) ) );
 149                         $wgOut->addHTML( Xml::element( 'h2', array( 'id' => 'metadata' ), wfMsg( 'metadata' ) ) . "\n" );
 150                         $wgOut->addWikiText( $this->makeMetadataTable( $formattedMetadata ) );
 151                         $wgOut->addScriptFile( 'metadata.js' );
 152                         $wgOut->addHTML(
 153                                 "<script type=\"text/javascript\">attachMetadataToggle('mw_metadata', '$expand', '$collapse');</script>\n" );
 154                 }
 155
 156                 $css = $this->repo->getDescriptionStylesheetUrl();
 157                 if ( $css ) {
 158                         $wgOut->addStyle( $css );
 159                 }
 160         }
 161
 162         public function getRedirectTarget() {
 163                 $this->loadFile();
 164                 if ( $this->img->isLocal() ) {
 165                         return parent::getRedirectTarget();
 166                 }
 167                 // Foreign image page
 168                 $from = $this->img->getRedirected();
 169                 $to = $this->img->getName();
 170                 if ( $from == $to ) {
 171                         return null;
 172                 }
 173                 return $this->mRedirectTarget = Title::makeTitle( NS_FILE, $to );
 174         }
 175         public function followRedirect() {
 176                 $this->loadFile();
 177                 if ( $this->img->isLocal() ) {
 178                         return parent::followRedirect();
 179                 }
 180                 $from = $this->img->getRedirected();
 181                 $to = $this->img->getName();
 182                 if ( $from == $to ) {
 183                         return false;
 184                 }
 185                 return Title::makeTitle( NS_FILE, $to );
 186         }
 187         public function isRedirect( $text = false ) {
 188                 $this->loadFile();
 189                 if ( $this->img->isLocal() )
 190                         return parent::isRedirect( $text );
 191
 192                 return (bool)$this->img->getRedirected();
 193         }
 194
 195         public function isLocal() {
 196                 $this->loadFile();
 197                 return $this->img->isLocal();
 198         }
 199
 200         public function getFile() {
 201                 $this->loadFile();
 202                 return $this->img;
 203         }
 204
 205         public function getDisplayedFile() {
 206                 $this->loadFile();
 207                 return $this->displayImg;
 208         }
 209
 210         public function getDuplicates() {
 211                 $this->loadFile();
 212                 if ( !is_null( $this->dupes ) ) {
 213                         return $this->dupes;
 214                 }
 215                 if ( !( $hash = $this->img->getSha1() ) ) {
 216                         return $this->dupes = array();
 217                 }
 218                 $dupes = RepoGroup::singleton()->findBySha1( $hash );
 219                 // Remove duplicates with self and non matching file sizes
 220                 $self = $this->img->getRepoName() . ':' . $this->img->getName();
 221                 $size = $this->img->getSize();
 222                 foreach ( $dupes as $index => $file ) {
 223                         $key = $file->getRepoName() . ':' . $file->getName();
 224                         if ( $key == $self )
 225                                 unset( $dupes[$index] );
 226                         if ( $file->getSize() != $size )
 227                                 unset( $dupes[$index] );
 228                 }
 229                 return $this->dupes = $dupes;
 230
 231         }
 232
 233
 234         /**
 235          * Create the TOC
 236          *
 237          * @param bool $metadata Whether or not to show the metadata link
 238          * @return string
 239          */
 240         protected function showTOC( $metadata ) {
 241                 $r = array(
 242                                 '<li><a href="#file">' . wfMsgHtml( 'file-anchor-link' ) . '</a></li>',
 243                                 '<li><a href="#filehistory">' . wfMsgHtml( 'filehist' ) . '</a></li>',
 244                                 '<li><a href="#filelinks">' . wfMsgHtml( 'imagelinks' ) . '</a></li>',
 245                 );
 246                 if ( $metadata ) {
 247                         $r[] = '<li><a href="#metadata">' . wfMsgHtml( 'metadata' ) . '</a></li>';
 248                 }
 249
 250                 wfRunHooks( 'ImagePageShowTOC', array( $this, &$r ) );
 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          * FIXME: bad interface, see note on MediaHandler::formatMetadata().
 259          *
 260          * @param array $exif The array containing the EXIF data
 261          * @return string
 262          */
 263         protected function makeMetadataTable( $metadata ) {
 264                 $r = "<div class=\"mw-imagepage-section-metadata\">";
 265                 $r .= wfMsgNoTrans( 'metadata-help' );
 266                 $r .= "<table id=\"mw_metadata\" class=\"mw_metadata\">\n";
 267                 foreach ( $metadata as $type => $stuff ) {
 268                         foreach ( $stuff as $v ) {
 269                                 # FIXME, why is this using escapeId for a class?!
 270                                 $class = Sanitizer::escapeId( $v['id'] );
 271                                 if ( $type == 'collapsed' ) {
 272                                         $class .= ' collapsable';
 273                                 }
 274                                 $r .= "<tr class=\"$class\">\n";
 275                                 $r .= "<th>{$v['name']}</th>\n";
 276                                 $r .= "<td>{$v['value']}</td>\n</tr>";
 277                         }
 278                 }
 279                 $r .= "</table>\n</div>\n";
 280                 return $r;
 281         }
 282
 283         /**
 284          * Overloading Article's getContent method.
 285          *
 286          * Omit noarticletext if sharedupload; text will be fetched from the
 287          * shared upload server if possible.
 288          */
 289         public function getContent() {
 290                 $this->loadFile();
 291                 if ( $this->img && !$this->img->isLocal() && 0 == $this->getID() ) {
 292                         return '';
 293                 }
 294                 return Article::getContent();
 295         }
 296
 297         protected function openShowImage() {
 298                 global $wgOut, $wgUser, $wgImageLimits, $wgRequest,
 299                         $wgLang, $wgContLang, $wgEnableUploads;
 300
 301                 $this->loadFile();
 302
 303                 $full_url  = $this->displayImg->getURL();
 304                 $linkAttribs = false;
 305                 $sizeSel = intval( $wgUser->getOption( 'imagesize' ) );
 306                 if ( !isset( $wgImageLimits[$sizeSel] ) ) {
 307                         $sizeSel = User::getDefaultOption( 'imagesize' );
 308
 309                         // The user offset might still be incorrect, specially if
 310                         // $wgImageLimits got changed (see bug #8858).
 311                         if ( !isset( $wgImageLimits[$sizeSel] ) ) {
 312                                 // Default to the first offset in $wgImageLimits
 313                                 $sizeSel = 0;
 314                         }
 315                 }
 316                 $max = $wgImageLimits[$sizeSel];
 317                 $maxWidth = $max[0];
 318                 $maxHeight = $max[1];
 319                 $sk = $wgUser->getSkin();
 320                 $dirmark = $wgContLang->getDirMark();
 321
 322                 if ( $this->displayImg->exists() ) {
 323                         # image
 324                         $page = $wgRequest->getIntOrNull( 'page' );
 325                         if ( is_null( $page ) ) {
 326                                 $params = array();
 327                                 $page = 1;
 328                         } else {
 329                                 $params = array( 'page' => $page );
 330                         }
 331                         $width_orig = $this->displayImg->getWidth();
 332                         $width = $width_orig;
 333                         $height_orig = $this->displayImg->getHeight();
 334                         $height = $height_orig;
 335                         $mime = $this->displayImg->getMimeType();
 336                         $showLink = false;
 337                         $linkAttribs = array( 'href' => $full_url );
 338                         $longDesc = $this->displayImg->getLongDesc();
 339
 340                         wfRunHooks( 'ImageOpenShowImageInlineBefore', array( &$this, &$wgOut ) );
 341
 342                         if ( $this->displayImg->allowInlineDisplay() ) {
 343                                 # image
 344
 345                                 # "Download high res version" link below the image
 346                                 # $msgsize = wfMsgHtml('file-info-size', $width_orig, $height_orig, $sk->formatSize( $this->displayImg->getSize() ), $mime );
 347                                 # We'll show a thumbnail of this image
 348                                 if ( $width > $maxWidth || $height > $maxHeight ) {
 349                                         # Calculate the thumbnail size.
 350                                         # First case, the limiting factor is the width, not the height.
 351                                         if ( $width / $height >= $maxWidth / $maxHeight ) {
 352                                                 $height = round( $height * $maxWidth / $width );
 353                                                 $width = $maxWidth;
 354                                                 # Note that $height <= $maxHeight now.
 355                                         } else {
 356                                                 $newwidth = floor( $width * $maxHeight / $height );
 357                                                 $height = round( $height * $newwidth / $width );
 358                                                 $width = $newwidth;
 359                                                 # Note that $height <= $maxHeight now, but might not be identical
 360                                                 # because of rounding.
 361                                         }
 362                                         $msgbig  = wfMsgHtml( 'show-big-image' );
 363                                         $msgsmall = wfMsgExt( 'show-big-image-thumb', 'parseinline',
 364                                                 $wgLang->formatNum( $width ),
 365                                                 $wgLang->formatNum( $height )
 366                                         );
 367                                 } else {
 368                                         # Image is small enough to show full size on image page
 369                                         $msgbig = htmlspecialchars( $this->displayImg->getName() );
 370                                         $msgsmall = wfMsgExt( 'file-nohires', array( 'parseinline' ) );
 371                                 }
 372
 373                                 $params['width'] = $width;
 374                                 $thumbnail = $this->displayImg->transform( $params );
 375
 376                                 $anchorclose = "<br />";
 377                                 if ( $this->displayImg->mustRender() ) {
 378                                         $showLink = true;
 379                                 } else {
 380                                         $anchorclose .=
 381                                                 $msgsmall .
 382                                                 '<br />' . Xml::tags( 'a', $linkAttribs,  $msgbig ) . "$dirmark " . $longDesc;
 383                                 }
 384
 385                                 $isMulti = $this->displayImg->isMultipage() && $this->displayImg->pageCount() > 1;
 386                                 if ( $isMulti ) {
 387                                         $wgOut->addHTML( '<table class="multipageimage"><tr><td>' );
 388                                 }
 389
 390                                 if ( $thumbnail ) {
 391                                         $options = array(
 392                                                 'alt' => $this->displayImg->getTitle()->getPrefixedText(),
 393                                                 'file-link' => true,
 394                                         );
 395                                         $wgOut->addHTML( '<div class="fullImageLink" id="file">' .
 396                                                 $thumbnail->toHtml( $options ) .
 397                                                 $anchorclose . "</div>\n" );
 398                                 }
 399
 400                                 if ( $isMulti ) {
 401                                         $count = $this->displayImg->pageCount();
 402
 403                                         if ( $page > 1 ) {
 404                                                 $label = $wgOut->parse( wfMsg( 'imgmultipageprev' ), false );
 405                                                 $link = $sk->link(
 406                                                         $this->mTitle,
 407                                                         $label,
 408                                                         array(),
 409                                                         array( 'page' => $page - 1 ),
 410                                                         array( 'known', 'noclasses' )
 411                                                 );
 412                                                 $thumb1 = $sk->makeThumbLinkObj( $this->mTitle, $this->displayImg, $link, $label, 'none',
 413                                                         array( 'page' => $page - 1 ) );
 414                                         } else {
 415                                                 $thumb1 = '';
 416                                         }
 417
 418                                         if ( $page < $count ) {
 419                                                 $label = wfMsg( 'imgmultipagenext' );
 420                                                 $link = $sk->link(
 421                                                         $this->mTitle,
 422                                                         $label,
 423                                                         array(),
 424                                                         array( 'page' => $page + 1 ),
 425                                                         array( 'known', 'noclasses' )
 426                                                 );
 427                                                 $thumb2 = $sk->makeThumbLinkObj( $this->mTitle, $this->displayImg, $link, $label, 'none',
 428                                                         array( 'page' => $page + 1 ) );
 429                                         } else {
 430                                                 $thumb2 = '';
 431                                         }
 432
 433                                         global $wgScript;
 434
 435                                         $formParams = array(
 436                                                 'name' => 'pageselector',
 437                                                 'action' => $wgScript,
 438                                                 'onchange' => 'document.pageselector.submit();',
 439                                         );
 440
 441                                         $option = array();
 442                                         for ( $i = 1; $i <= $count; $i++ ) {
 443                                                 $options[] = Xml::option( $wgLang->formatNum( $i ), $i, $i == $page );
 444                                         }
 445                                         $select = Xml::tags( 'select',
 446                                                 array( 'id' => 'pageselector', 'name' => 'page' ),
 447                                                 implode( "\n", $options ) );
 448
 449                                         $wgOut->addHTML(
 450                                                 '</td><td><div class="multipageimagenavbox">' .
 451                                                 Xml::openElement( 'form', $formParams ) .
 452                                                 Xml::hidden( 'title', $this->getTitle()->getPrefixedDbKey() ) .
 453                                                 wfMsgExt( 'imgmultigoto', array( 'parseinline', 'replaceafter' ), $select ) .
 454                                                 Xml::submitButton( wfMsg( 'imgmultigo' ) ) .
 455                                                 Xml::closeElement( 'form' ) .
 456                                                 "<hr />$thumb1\n$thumb2<br clear=\"all\" /></div></td></tr></table>"
 457                                         );
 458                                 }
 459                         } else {
 460                                 # if direct link is allowed but it's not a renderable image, show an icon.
 461                                 if ( $this->displayImg->isSafeFile() ) {
 462                                         $icon = $this->displayImg->iconThumb();
 463
 464                                         $wgOut->addHTML( '<div class="fullImageLink" id="file">' .
 465                                         $icon->toHtml( array( 'file-link' => true ) ) .
 466                                         "</div>\n" );
 467                                 }
 468
 469                                 $showLink = true;
 470                         }
 471
 472
 473                         if ( $showLink ) {
 474                                 $filename = wfEscapeWikiText( $this->displayImg->getName() );
 475                                 $medialink = "[[Media:$filename|$filename]]";
 476
 477                                 if ( !$this->displayImg->isSafeFile() ) {
 478                                         $warning = wfMsgNoTrans( 'mediawarning' );
 479                                         $wgOut->addWikiText( <<<EOT
 480 <div class="fullMedia">
 481 <span class="dangerousLink">{$medialink}</span>$dirmark
 482 <span class="fileInfo">$longDesc</span>
 483 </div>
 484 <div class="mediaWarning">$warning</div>
 485 EOT
 486                                                 );
 487                                 } else {
 488                                         $wgOut->addWikiText( <<<EOT
 489 <div class="fullMedia">
 490 {$medialink}{$dirmark}
 491 <span class="fileInfo">$longDesc</span>
 492 </div>
 493 EOT
 494                                         );
 495                                 }
 496                         }
 497
 498                         if ( !$this->displayImg->isLocal() ) {
 499                                 $this->printSharedImageText();
 500                         }
 501                 } else {
 502                         # Image does not exist
 503                         if ( $wgEnableUploads && $wgUser->isAllowed( 'upload' ) ) {
 504                                 // Only show an upload link if the user can upload
 505                                 $uploadTitle = SpecialPage::getTitleFor( 'Upload' );
 506                                 $nofile = array(
 507                                         'filepage-nofile-link',
 508                                         $uploadTitle->getFullUrl( array( 'wpDestFile' => $this->img->getName() ) )
 509                                 );
 510                         }
 511                         else
 512                         {
 513                                 $nofile = 'filepage-nofile';
 514                         }
 515                         $wgOut->setRobotPolicy( 'noindex,nofollow' );
 516                         $wgOut->wrapWikiMsg( "<div id='mw-imagepage-nofile' class='plainlinks'>\n$1\n</div>", $nofile );
 517                 }
 518         }
 519
 520         /**
 521          * Show a notice that the file is from a shared repository
 522          */
 523         protected function printSharedImageText() {
 524                 global $wgOut;
 525
 526                 $this->loadFile();
 527
 528                 $descUrl = $this->img->getDescriptionUrl();
 529                 $descText = $this->img->getDescriptionText();
 530
 531                 $wrap = "<div class=\"sharedUploadNotice\">\n$1\n</div>\n";
 532                 $repo = $this->img->getRepo()->getDisplayName();
 533
 534                 $msg = '';
 535                 if ( $descUrl && $descText && wfMsgNoTrans( 'sharedupload-desc-here' ) !== '-'  ) {
 536                         $wgOut->wrapWikiMsg( $wrap, array( 'sharedupload-desc-here', $repo, $descUrl ) );
 537                 } elseif ( $descUrl && wfMsgNoTrans( 'sharedupload-desc-there' ) !== '-' ) {
 538                         $wgOut->wrapWikiMsg( $wrap, array( 'sharedupload-desc-there', $repo, $descUrl ) );
 539                 } else {
 540                         $wgOut->wrapWikiMsg( $wrap, array( 'sharedupload', $repo ), ''/*BACKCOMPAT*/ );
 541                 }
 542
 543                 if ( $descText ) {
 544                         $this->mExtraDescription = $descText;
 545                 }
 546         }
 547
 548         public function getUploadUrl() {
 549                 $this->loadFile();
 550                 $uploadTitle = SpecialPage::getTitleFor( 'Upload' );
 551                 return $uploadTitle->getFullUrl( array(
 552                         'wpDestFile' => $this->img->getName(),
 553                         'wpForReUpload' => 1
 554                  ) );
 555         }
 556
 557         /**
 558          * Print out the various links at the bottom of the image page, e.g. reupload,
 559          * external editing (and instructions link) etc.
 560          */
 561         protected function uploadLinksBox() {
 562                 global $wgUser, $wgOut, $wgEnableUploads, $wgUseExternalEditor;
 563
 564                 if ( !$wgEnableUploads ) { return; }
 565
 566                 $this->loadFile();
 567                 if ( !$this->img->isLocal() )
 568                         return;
 569
 570                 $sk = $wgUser->getSkin();
 571
 572                 $wgOut->addHTML( "<br /><ul>\n" );
 573
 574                 # "Upload a new version of this file" link
 575                 if ( UploadBase::userCanReUpload( $wgUser, $this->img->name ) ) {
 576                         $ulink = $sk->makeExternalLink( $this->getUploadUrl(), wfMsg( 'uploadnewversion-linktext' ) );
 577                         $wgOut->addHTML( "<li id=\"mw-imagepage-reupload-link\"><div class=\"plainlinks\">{$ulink}</div></li>\n" );
 578                 }
 579
 580                 # External editing link
 581                 if ( $wgUseExternalEditor ) {
 582                         $elink = $sk->link(
 583                                 $this->mTitle,
 584                                 wfMsgHtml( 'edit-externally' ),
 585                                 array(),
 586                                 array(
 587                                         'action' => 'edit',
 588                                         'externaledit' => 'true',
 589                                         'mode' => 'file'
 590                                 ),
 591                                 array( 'known', 'noclasses' )
 592                         );
 593                         $wgOut->addHTML( '<li id="mw-imagepage-edit-external">' . $elink . ' <small>' . wfMsgExt( 'edit-externally-help', array( 'parseinline' ) ) . "</small></li>\n" );
 594                 }
 595
 596                 $wgOut->addHTML( "</ul>\n" );
 597         }
 598
 599         protected function closeShowImage() { } # For overloading
 600
 601         /**
 602          * If the page we've just displayed is in the "Image" namespace,
 603          * we follow it with an upload history of the image and its usage.
 604          */
 605         protected function imageHistory() {
 606                 global $wgOut;
 607
 608                 $this->loadFile();
 609                 $pager = new ImageHistoryPseudoPager( $this );
 610                 $wgOut->addHTML( $pager->getBody() );
 611
 612                 $this->img->resetHistory(); // free db resources
 613
 614                 # Exist check because we don't want to show this on pages where an image
 615                 # doesn't exist along with the noimage message, that would suck. -ævar
 616                 if ( $this->img->exists() ) {
 617                         $this->uploadLinksBox();
 618                 }
 619         }
 620
 621         protected function imageLinks() {
 622                 global $wgUser, $wgOut, $wgLang;
 623
 624                 $limit = 100;
 625
 626                 $dbr = wfGetDB( DB_SLAVE );
 627
 628                 $res = $dbr->select(
 629                         array( 'imagelinks', 'page' ),
 630                         array( 'page_namespace', 'page_title' ),
 631                         array( 'il_to' => $this->mTitle->getDBkey(), 'il_from = page_id' ),
 632                         __METHOD__,
 633                         array( 'LIMIT' => $limit + 1 )
 634                 );
 635                 $count = $dbr->numRows( $res );
 636                 if ( $count == 0 ) {
 637                         $wgOut->wrapWikiMsg( Html::rawElement( 'div', array ( 'id' => 'mw-imagepage-nolinkstoimage' ), "\n$1\n" ), 'nolinkstoimage' );
 638                         return;
 639                 }
 640
 641                 $wgOut->addHTML( "<div id='mw-imagepage-section-linkstoimage'>\n" );
 642                 if ( $count <= $limit - 1 ) {
 643                         $wgOut->addWikiMsg( 'linkstoimage', $count );
 644                 } else {
 645                         // More links than the limit. Add a link to [[Special:Whatlinkshere]]
 646                         $wgOut->addWikiMsg( 'linkstoimage-more',
 647                                 $wgLang->formatNum( $limit ),
 648                                 $this->mTitle->getPrefixedDBkey()
 649                         );
 650                 }
 651
 652                 $wgOut->addHTML( Html::openElement( 'ul', array( 'class' => 'mw-imagepage-linkstoimage' ) ) . "\n" );
 653                 $sk = $wgUser->getSkin();
 654                 $count = 0;
 655                 $elements = array();
 656                 while ( $s = $res->fetchObject() ) {
 657                         $count++;
 658                         if ( $count <= $limit ) {
 659                                 // We have not yet reached the extra one that tells us there is more to fetch
 660                                 $elements[] =  $s;
 661                         }
 662                 }
 663
 664                 // Sort the list by namespace:title
 665                 usort ( $elements, array( $this, 'compare' ) );
 666
 667                 // Create links for every element
 668                 foreach( $elements as $element ) {
 669                         $link = $sk->linkKnown( Title::makeTitle( $element->page_namespace, $element->page_title ) );
 670                         $wgOut->addHTML( Html::rawElement(
 671                                                 'li',
 672                                                 array( 'id' => 'mw-imagepage-linkstoimage-ns' . $element->page_namespace ),
 673                                                 $link
 674                                         ) . "\n"
 675                         );
 676
 677                 };
 678                 $wgOut->addHTML( Html::closeElement( 'ul' ) . "\n" );
 679                 $res->free();
 680
 681                 // Add a links to [[Special:Whatlinkshere]]
 682                 if ( $count > $limit ) {
 683                         $wgOut->addWikiMsg( 'morelinkstoimage', $this->mTitle->getPrefixedDBkey() );
 684                 }
 685                 $wgOut->addHTML( Html::closeElement( 'div' ) . "\n" );
 686         }
 687
 688         protected function imageRedirects() {
 689                 global $wgUser, $wgOut, $wgLang;
 690
 691                 $redirects = $this->getTitle()->getRedirectsHere( NS_FILE );
 692                 if ( count( $redirects ) == 0 ) return;
 693
 694                 $wgOut->addHTML( "<div id='mw-imagepage-section-redirectstofile'>\n" );
 695                 $wgOut->addWikiMsg( 'redirectstofile',
 696                         $wgLang->formatNum( count( $redirects ) )
 697                 );
 698                 $wgOut->addHTML( "<ul class='mw-imagepage-redirectstofile'>\n" );
 699
 700                 $sk = $wgUser->getSkin();
 701                 foreach ( $redirects as $title ) {
 702                         $link = $sk->link(
 703                                 $title,
 704                                 null,
 705                                 array(),
 706                                 array( 'redirect' => 'no' ),
 707                                 array( 'known', 'noclasses' )
 708                         );
 709                         $wgOut->addHTML( "<li>{$link}</li>\n" );
 710                 }
 711                 $wgOut->addHTML( "</ul></div>\n" );
 712
 713         }
 714
 715         protected function imageDupes() {
 716                 global $wgOut, $wgUser, $wgLang;
 717
 718                 $this->loadFile();
 719
 720                 $dupes = $this->getDuplicates();
 721                 if ( count( $dupes ) == 0 ) return;
 722
 723                 $wgOut->addHTML( "<div id='mw-imagepage-section-duplicates'>\n" );
 724                 $wgOut->addWikiMsg( 'duplicatesoffile',
 725                         $wgLang->formatNum( count( $dupes ) ), $this->mTitle->getDBkey()
 726                 );
 727                 $wgOut->addHTML( "<ul class='mw-imagepage-duplicates'>\n" );
 728
 729                 $sk = $wgUser->getSkin();
 730                 foreach ( $dupes as $file ) {
 731                         $fromSrc = '';
 732                         if ( $file->isLocal() ) {
 733                                 $link = $sk->link(
 734                                         $file->getTitle(),
 735                                         null,
 736                                         array(),
 737                                         array(),
 738                                         array( 'known', 'noclasses' )
 739                                 );
 740                         } else {
 741                                 $link = $sk->makeExternalLink( $file->getDescriptionUrl(),
 742                                         $file->getTitle()->getPrefixedText() );
 743                                 $fromSrc = wfMsg( 'shared-repo-from', $file->getRepo()->getDisplayName() );
 744                         }
 745                         $wgOut->addHTML( "<li>{$link} {$fromSrc}</li>\n" );
 746                 }
 747                 $wgOut->addHTML( "</ul></div>\n" );
 748         }
 749
 750         /**
 751          * Delete the file, or an earlier version of it
 752          */
 753         public function delete() {
 754                 global $wgUploadMaintenance;
 755                 if ( $wgUploadMaintenance && $this->mTitle && $this->mTitle->getNamespace() == NS_FILE ) {
 756                         global $wgOut;
 757                         $wgOut->wrapWikiMsg( "<div class='error'>\n$1\n</div>\n", array( 'filedelete-maintenance' ) );
 758                         return;
 759                 }
 760
 761                 $this->loadFile();
 762                 if ( !$this->img->exists() || !$this->img->isLocal() || $this->img->getRedirected() ) {
 763                         // Standard article deletion
 764                         Article::delete();
 765                         return;
 766                 }
 767                 $deleter = new FileDeleteForm( $this->img );
 768                 $deleter->execute();
 769         }
 770
 771         /**
 772          * Revert the file to an earlier version
 773          */
 774         public function revert() {
 775                 $this->loadFile();
 776                 $reverter = new FileRevertForm( $this->img );
 777                 $reverter->execute();
 778         }
 779
 780         /**
 781          * Override handling of action=purge
 782          */
 783         public function doPurge() {
 784                 $this->loadFile();
 785                 if ( $this->img->exists() ) {
 786                         wfDebug( "ImagePage::doPurge purging " . $this->img->getName() . "\n" );
 787                         $update = new HTMLCacheUpdate( $this->mTitle, 'imagelinks' );
 788                         $update->doUpdate();
 789                         $this->img->upgradeRow();
 790                         $this->img->purgeCache();
 791                 } else {
 792                         wfDebug( "ImagePage::doPurge no image for " . $this->img->getName() . "; limiting purge to cache only\n" );
 793                         // even if the file supposedly doesn't exist, force any cached information
 794                         // to be updated (in case the cached information is wrong)
 795                         $this->img->purgeCache();
 796                 }
 797                 parent::doPurge();
 798         }
 799
 800         /**
 801          * Display an error with a wikitext description
 802          */
 803         function showError( $description ) {
 804                 global $wgOut;
 805                 $wgOut->setPageTitle( wfMsg( "internalerror" ) );
 806                 $wgOut->setRobotPolicy( "noindex,nofollow" );
 807                 $wgOut->setArticleRelated( false );
 808                 $wgOut->enableClientCache( false );
 809                 $wgOut->addWikiText( $description );
 810         }
 811
 812
 813         /**
 814          * Callback for usort() to do link sorts by (namespace, title)
 815          * Function copied from Title::compare()
 816          *
 817          * @param $a object page to compare with
 818          * @param $b object page to compare with
 819          * @return Integer: result of string comparison, or namespace comparison
 820          */
 821         protected function compare( $a, $b ) {
 822                 if ( $a->page_namespace == $b->page_namespace ) {
 823                         return strcmp( $a->page_title, $b->page_title );
 824                 } else {
 825                         return $a->page_namespace - $b->page_namespace;
 826                 }
 827         }
 828 }
 829
 830 /**
 831  * Builds the image revision log shown on image pages
 832  *
 833  * @ingroup Media
 834  */
 835 class ImageHistoryList {
 836
 837         protected $imagePage, $img, $skin, $title, $repo, $showThumb;
 838
 839         public function __construct( $imagePage ) {
 840                 global $wgUser, $wgShowArchiveThumbnails;
 841                 $this->skin = $wgUser->getSkin();
 842                 $this->current = $imagePage->getFile();
 843                 $this->img = $imagePage->getDisplayedFile();
 844                 $this->title = $imagePage->getTitle();
 845                 $this->imagePage = $imagePage;
 846                 $this->showThumb = $wgShowArchiveThumbnails && $this->img->canRender();
 847         }
 848
 849         public function getImagePage() {
 850                 return $this->imagePage;
 851         }
 852
 853         public function getSkin() {
 854                 return $this->skin;
 855         }
 856
 857         public function getFile() {
 858                 return $this->img;
 859         }
 860
 861         public function beginImageHistoryList( $navLinks = '' ) {
 862                 global $wgOut, $wgUser;
 863                 return Xml::element( 'h2', array( 'id' => 'filehistory' ), wfMsg( 'filehist' ) ) . "\n"
 864                         . "<div id=\"mw-imagepage-section-filehistory\">\n"
 865                         . $wgOut->parse( wfMsgNoTrans( 'filehist-help' ) )
 866                         . $navLinks . "\n"
 867                         . Xml::openElement( 'table', array( 'class' => 'wikitable filehistory' ) ) . "\n"
 868                         . '<tr><td></td>'
 869                         . ( $this->current->isLocal() && ( $wgUser->isAllowed( 'delete' ) || $wgUser->isAllowed( 'deletedhistory' ) ) ? '<td></td>' : '' )
 870                         . '<th>' . wfMsgHtml( 'filehist-datetime' ) . '</th>'
 871                         . ( $this->showThumb ? '<th>' . wfMsgHtml( 'filehist-thumb' ) . '</th>' : '' )
 872                         . '<th>' . wfMsgHtml( 'filehist-dimensions' ) . '</th>'
 873                         . '<th>' . wfMsgHtml( 'filehist-user' ) . '</th>'
 874                         . '<th>' . wfMsgHtml( 'filehist-comment' ) . '</th>'
 875                         . "</tr>\n";
 876         }
 877
 878         public function endImageHistoryList( $navLinks = '' ) {
 879                 return "</table>\n$navLinks\n</div>\n";
 880         }
 881
 882         public function imageHistoryLine( $iscur, $file ) {
 883                 global $wgUser, $wgLang, $wgContLang;
 884
 885                 $timestamp = wfTimestamp( TS_MW, $file->getTimestamp() );
 886                 $img = $iscur ? $file->getName() : $file->getArchiveName();
 887                 $user = $file->getUser( 'id' );
 888                 $usertext = $file->getUser( 'text' );
 889                 $description = $file->getDescription();
 890
 891                 $local = $this->current->isLocal();
 892                 $row = $css = $selected = '';
 893
 894                 // Deletion link
 895                 if ( $local && ( $wgUser->isAllowed( 'delete' ) || $wgUser->isAllowed( 'deletedhistory' ) ) ) {
 896                         $row .= '<td>';
 897                         # Link to remove from history
 898                         if ( $wgUser->isAllowed( 'delete' ) ) {
 899                                 $q = array( 'action' => 'delete' );
 900                                 if ( !$iscur )
 901                                         $q['oldimage'] = $img;
 902                                 $row .= $this->skin->link(
 903                                         $this->title,
 904                                         wfMsgHtml( $iscur ? 'filehist-deleteall' : 'filehist-deleteone' ),
 905                                         array(), $q, array( 'known' )
 906                                 );
 907                         }
 908                         # Link to hide content. Don't show useless link to people who cannot hide revisions.
 909                         $canHide = $wgUser->isAllowed( 'deleterevision' );
 910                         if ( $canHide || ( $wgUser->isAllowed( 'deletedhistory' ) && $file->getVisibility() ) ) {
 911                                 if ( $wgUser->isAllowed( 'delete' ) ) {
 912                                         $row .= '<br />';
 913                                 }
 914                                 // If file is top revision or locked from this user, don't link
 915                                 if ( $iscur || !$file->userCan( File::DELETED_RESTRICTED ) ) {
 916                                         $del = $this->skin->revDeleteLinkDisabled( $canHide );
 917                                 } else {
 918                                         list( $ts, $name ) = explode( '!', $img, 2 );
 919                                         $query = array(
 920                                                 'type'   => 'oldimage',
 921                                                 'target' => $this->title->getPrefixedText(),
 922                                                 'ids'    => $ts,
 923                                         );
 924                                         $del = $this->skin->revDeleteLink( $query,
 925                                                 $file->isDeleted( File::DELETED_RESTRICTED ), $canHide );
 926                                 }
 927                                 $row .= $del;
 928                         }
 929                         $row .= '</td>';
 930                 }
 931
 932                 // Reversion link/current indicator
 933                 $row .= '<td>';
 934                 if ( $iscur ) {
 935                         $row .= wfMsgHtml( 'filehist-current' );
 936                 } elseif ( $local && $wgUser->isLoggedIn() && $this->title->userCan( 'edit' ) ) {
 937                         if ( $file->isDeleted( File::DELETED_FILE ) ) {
 938                                 $row .= wfMsgHtml( 'filehist-revert' );
 939                         } else {
 940                                 $row .= $this->skin->link(
 941                                         $this->title,
 942                                         wfMsgHtml( 'filehist-revert' ),
 943                                         array(),
 944                                         array(
 945                                                 'action' => 'revert',
 946                                                 'oldimage' => $img,
 947                                                 'wpEditToken' => $wgUser->editToken( $img )
 948                                         ),
 949                                         array( 'known', 'noclasses' )
 950                                 );
 951                         }
 952                 }
 953                 $row .= '</td>';
 954
 955                 // Date/time and image link
 956                 if ( $file->getTimestamp() === $this->img->getTimestamp() ) {
 957                         $selected = "class='filehistory-selected'";
 958                 }
 959                 $row .= "<td $selected style='white-space: nowrap;'>";
 960                 if ( !$file->userCan( File::DELETED_FILE ) ) {
 961                         # Don't link to unviewable files
 962                         $row .= '<span class="history-deleted">' . $wgLang->timeAndDate( $timestamp, true ) . '</span>';
 963                 } elseif ( $file->isDeleted( File::DELETED_FILE ) ) {
 964                         $revdel = SpecialPage::getTitleFor( 'Revisiondelete' );
 965                         # Make a link to review the image
 966                         $url = $this->skin->link(
 967                                 $revdel,
 968                                 $wgLang->timeAndDate( $timestamp, true ),
 969                                 array(),
 970                                 array(
 971                                         'target' => $this->title->getPrefixedText(),
 972                                         'file' => $img,
 973                                         'token' => $wgUser->editToken( $img )
 974                                 ),
 975                                 array( 'known', 'noclasses' )
 976                         );
 977                         $row .= '<span class="history-deleted">' . $url . '</span>';
 978                 } else {
 979                         $url = $iscur ? $this->current->getUrl() : $this->current->getArchiveUrl( $img );
 980                         $row .= Xml::element( 'a', array( 'href' => $url ), $wgLang->timeAndDate( $timestamp, true ) );
 981                 }
 982                 $row .= "</td>";
 983
 984                 // Thumbnail
 985                 if ( $this->showThumb ) {
 986                         $row .= '<td>' . $this->getThumbForLine( $file ) . '</td>';
 987                 }
 988
 989                 // Image dimensions + size
 990                 $row .= '<td>';
 991                 $row .= htmlspecialchars( $file->getDimensionsString() );
 992                 $row .= " <span style='white-space: nowrap;'>(" . $this->skin->formatSize( $file->getSize() ) . ')</span>';
 993                 $row .= '</td>';
 994
 995                 // Uploading user
 996                 $row .= '<td>';
 997                 if ( $local ) {
 998                         // Hide deleted usernames
 999                         if ( $file->isDeleted( File::DELETED_USER ) ) {
1000                                 $row .= '<span class="history-deleted">' . wfMsgHtml( 'rev-deleted-user' ) . '</span>';
1001                         } else {
1002                                 $row .= $this->skin->userLink( $user, $usertext ) . " <span style='white-space: nowrap;'>" .
1003                                         $this->skin->userToolLinks( $user, $usertext ) . "</span>";
1004                         }
1005                 } else {
1006                         $row .= htmlspecialchars( $usertext );
1007                 }
1008                 $row .= '</td><td>';
1009
1010                 // Don't show deleted descriptions
1011                 if ( $file->isDeleted( File::DELETED_COMMENT ) ) {
1012                         $row .= '<span class="history-deleted">' . wfMsgHtml( 'rev-deleted-comment' ) . '</span>';
1013                 } else {
1014                         $row .= $this->skin->commentBlock( $description, $this->title );
1015                 }
1016                 $row .= '</td>';
1017
1018                 wfRunHooks( 'ImagePageFileHistoryLine', array( $this, $file, &$row, &$rowClass ) );
1019                 $classAttr = $rowClass ? " class='$rowClass'" : "";
1020
1021                 return "<tr{$classAttr}>{$row}</tr>\n";
1022         }
1023
1024         protected function getThumbForLine( $file ) {
1025                 global $wgLang;
1026
1027                 if ( $file->allowInlineDisplay() && $file->userCan( File::DELETED_FILE ) && !$file->isDeleted( File::DELETED_FILE ) ) {
1028                         $params = array(
1029                                 'width' => '120',
1030                                 'height' => '120',
1031                         );
1032                         $timestamp = wfTimestamp( TS_MW, $file->getTimestamp() );
1033
1034                         $thumbnail = $file->transform( $params );
1035                         $options = array(
1036                                 'alt' => wfMsg( 'filehist-thumbtext',
1037                                         $wgLang->timeAndDate( $timestamp, true ),
1038                                         $wgLang->date( $timestamp, true ),
1039                                         $wgLang->time( $timestamp, true ) ),
1040                                 'file-link' => true,
1041                         );
1042
1043                         if ( !$thumbnail ) return wfMsgHtml( 'filehist-nothumb' );
1044
1045                         return $thumbnail->toHtml( $options );
1046                 } else {
1047                         return wfMsgHtml( 'filehist-nothumb' );
1048                 }
1049         }
1050 }
1051
1052 class ImageHistoryPseudoPager extends ReverseChronologicalPager {
1053         function __construct( $imagePage ) {
1054                 parent::__construct();
1055                 $this->mImagePage = $imagePage;
1056                 $this->mTitle = clone ( $imagePage->getTitle() );
1057                 $this->mTitle->setFragment( '#filehistory' );
1058                 $this->mImg = null;
1059                 $this->mHist = array();
1060                 $this->mRange = array( 0, 0 ); // display range
1061         }
1062
1063         function getTitle() {
1064                 return $this->mTitle;
1065         }
1066
1067         function getQueryInfo() {
1068                 return false;
1069         }
1070
1071         function getIndexField() {
1072                 return '';
1073         }
1074
1075         function formatRow( $row ) {
1076                 return '';
1077         }
1078
1079         function getBody() {
1080                 $s = '';
1081                 $this->doQuery();
1082                 if ( count( $this->mHist ) ) {
1083                         $list = new ImageHistoryList( $this->mImagePage );
1084                         # Generate prev/next links
1085                         $navLink = $this->getNavigationBar();
1086                         $s = $list->beginImageHistoryList( $navLink );
1087                         // Skip rows there just for paging links
1088                         for ( $i = $this->mRange[0]; $i <= $this->mRange[1]; $i++ ) {
1089                                 $file = $this->mHist[$i];
1090                                 $s .= $list->imageHistoryLine( !$file->isOld(), $file );
1091                         }
1092                         $s .= $list->endImageHistoryList( $navLink );
1093                 }
1094                 return $s;
1095         }
1096
1097         function doQuery() {
1098                 if ( $this->mQueryDone ) return;
1099                 $this->mImg = $this->mImagePage->getFile(); // ensure loading
1100                 if ( !$this->mImg->exists() ) {
1101                         return;
1102                 }
1103                 $queryLimit = $this->mLimit + 1; // limit plus extra row
1104                 if ( $this->mIsBackwards ) {
1105                         // Fetch the file history
1106                         $this->mHist = $this->mImg->getHistory( $queryLimit, null, $this->mOffset, false );
1107                         // The current rev may not meet the offset/limit
1108                         $numRows = count( $this->mHist );
1109                         if ( $numRows <= $this->mLimit && $this->mImg->getTimestamp() > $this->mOffset ) {
1110                                 $this->mHist = array_merge( array( $this->mImg ), $this->mHist );
1111                         }
1112                 } else {
1113                         // The current rev may not meet the offset
1114                         if ( !$this->mOffset || $this->mImg->getTimestamp() < $this->mOffset ) {
1115                                 $this->mHist[] = $this->mImg;
1116                         }
1117                         // Old image versions (fetch extra row for nav links)
1118                         $oiLimit = count( $this->mHist ) ? $this->mLimit : $this->mLimit + 1;
1119                         // Fetch the file history
1120                         $this->mHist = array_merge( $this->mHist,
1121                                 $this->mImg->getHistory( $oiLimit, $this->mOffset, null, false ) );
1122                 }
1123                 $numRows = count( $this->mHist ); // Total number of query results
1124                 if ( $numRows ) {
1125                         # Index value of top item in the list
1126                         $firstIndex = $this->mIsBackwards ?
1127                                 $this->mHist[$numRows - 1]->getTimestamp() : $this->mHist[0]->getTimestamp();
1128                         # Discard the extra result row if there is one
1129                         if ( $numRows > $this->mLimit && $numRows > 1 ) {
1130                                 if ( $this->mIsBackwards ) {
1131                                         # Index value of item past the index
1132                                         $this->mPastTheEndIndex = $this->mHist[0]->getTimestamp();
1133                                         # Index value of bottom item in the list
1134                                         $lastIndex = $this->mHist[1]->getTimestamp();
1135                                         # Display range
1136                                         $this->mRange = array( 1, $numRows - 1 );
1137                                 } else {
1138                                         # Index value of item past the index
1139                                         $this->mPastTheEndIndex = $this->mHist[$numRows - 1]->getTimestamp();
1140                                         # Index value of bottom item in the list
1141                                         $lastIndex = $this->mHist[$numRows - 2]->getTimestamp();
1142                                         # Display range
1143                                         $this->mRange = array( 0, $numRows - 2 );
1144                                 }
1145                         } else {
1146                                 # Setting indexes to an empty string means that they will be
1147                                 # omitted if they would otherwise appear in URLs. It just so
1148                                 # happens that this  is the right thing to do in the standard
1149                                 # UI, in all the relevant cases.
1150                                 $this->mPastTheEndIndex = '';
1151                                 # Index value of bottom item in the list
1152                                 $lastIndex = $this->mIsBackwards ?
1153                                         $this->mHist[0]->getTimestamp() : $this->mHist[$numRows - 1]->getTimestamp();
1154                                 # Display range
1155                                 $this->mRange = array( 0, $numRows - 1 );
1156                         }
1157                 } else {
1158                         $firstIndex = '';
1159                         $lastIndex = '';
1160                         $this->mPastTheEndIndex = '';
1161                 }
1162                 if ( $this->mIsBackwards ) {
1163                         $this->mIsFirst = ( $numRows < $queryLimit );
1164                         $this->mIsLast = ( $this->mOffset == '' );
1165                         $this->mLastShown = $firstIndex;
1166                         $this->mFirstShown = $lastIndex;
1167                 } else {
1168                         $this->mIsFirst = ( $this->mOffset == '' );
1169                         $this->mIsLast = ( $numRows < $queryLimit );
1170                         $this->mLastShown = $lastIndex;
1171                         $this->mFirstShown = $firstIndex;
1172                 }
1173                 $this->mQueryDone = true;
1174         }
1175 }