Split ImagePage.php into separate classes
authorThomas Arrow <thomasarrow@gmail.com>
Wed, 3 Feb 2016 12:26:01 +0000 (12:26 +0000)
committeraddshore <addshorewiki@gmail.com>
Thu, 4 Feb 2016 11:26:36 +0000 (12:26 +0100)
Change-Id: Id2ca94c50b75d24da4d02fe82747a7ce7edccd9f

autoload.php
includes/page/ImageHistoryList.php [new file with mode: 0644]
includes/page/ImageHistoryPseudoPager.php [new file with mode: 0644]
includes/page/ImagePage.php

index 8720186..b4c31dc 100644 (file)
@@ -566,8 +566,8 @@ $wgAutoloadLocalClasses = array(
        'ImageGallery' => __DIR__ . '/includes/gallery/TraditionalImageGallery.php',
        'ImageGalleryBase' => __DIR__ . '/includes/gallery/ImageGalleryBase.php',
        'ImageHandler' => __DIR__ . '/includes/media/ImageHandler.php',
-       'ImageHistoryList' => __DIR__ . '/includes/page/ImagePage.php',
-       'ImageHistoryPseudoPager' => __DIR__ . '/includes/page/ImagePage.php',
+       'ImageHistoryList' => __DIR__ . '/includes/page/ImageHistoryList.php',
+       'ImageHistoryPseudoPager' => __DIR__ . '/includes/page/ImageHistoryPseudoPager.php',
        'ImageListPager' => __DIR__ . '/includes/specials/SpecialListfiles.php',
        'ImagePage' => __DIR__ . '/includes/page/ImagePage.php',
        'ImageQueryPage' => __DIR__ . '/includes/specialpage/ImageQueryPage.php',
diff --git a/includes/page/ImageHistoryList.php b/includes/page/ImageHistoryList.php
new file mode 100644 (file)
index 0000000..32638a5
--- /dev/null
@@ -0,0 +1,327 @@
+<?php
+/**
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ */
+
+/**
+ * Builds the image revision log shown on image pages
+ *
+ * @ingroup Media
+ */
+class ImageHistoryList extends ContextSource {
+
+       /**
+        * @var Title
+        */
+       protected $title;
+
+       /**
+        * @var File
+        */
+       protected $img;
+
+       /**
+        * @var ImagePage
+        */
+       protected $imagePage;
+
+       /**
+        * @var File
+        */
+       protected $current;
+
+       protected $repo, $showThumb;
+       protected $preventClickjacking = false;
+
+       /**
+        * @param ImagePage $imagePage
+        */
+       public function __construct( $imagePage ) {
+               global $wgShowArchiveThumbnails;
+               $this->current = $imagePage->getFile();
+               $this->img = $imagePage->getDisplayedFile();
+               $this->title = $imagePage->getTitle();
+               $this->imagePage = $imagePage;
+               $this->showThumb = $wgShowArchiveThumbnails && $this->img->canRender();
+               $this->setContext( $imagePage->getContext() );
+       }
+
+       /**
+        * @return ImagePage
+        */
+       public function getImagePage() {
+               return $this->imagePage;
+       }
+
+       /**
+        * @return File
+        */
+       public function getFile() {
+               return $this->img;
+       }
+
+       /**
+        * @param string $navLinks
+        * @return string
+        */
+       public function beginImageHistoryList( $navLinks = '' ) {
+               return Xml::element( 'h2', array( 'id' => 'filehistory' ), $this->msg( 'filehist' )->text() )
+               . "\n"
+               . "<div id=\"mw-imagepage-section-filehistory\">\n"
+               . $this->msg( 'filehist-help' )->parseAsBlock()
+               . $navLinks . "\n"
+               . Xml::openElement( 'table', array( 'class' => 'wikitable filehistory' ) ) . "\n"
+               . '<tr><th></th>'
+               . ( $this->current->isLocal()
+               && ( $this->getUser()->isAllowedAny( 'delete', 'deletedhistory' ) ) ? '<th></th>' : '' )
+               . '<th>' . $this->msg( 'filehist-datetime' )->escaped() . '</th>'
+               . ( $this->showThumb ? '<th>' . $this->msg( 'filehist-thumb' )->escaped() . '</th>' : '' )
+               . '<th>' . $this->msg( 'filehist-dimensions' )->escaped() . '</th>'
+               . '<th>' . $this->msg( 'filehist-user' )->escaped() . '</th>'
+               . '<th>' . $this->msg( 'filehist-comment' )->escaped() . '</th>'
+               . "</tr>\n";
+       }
+
+       /**
+        * @param string $navLinks
+        * @return string
+        */
+       public function endImageHistoryList( $navLinks = '' ) {
+               return "</table>\n$navLinks\n</div>\n";
+       }
+
+       /**
+        * @param bool $iscur
+        * @param File $file
+        * @return string
+        */
+       public function imageHistoryLine( $iscur, $file ) {
+               global $wgContLang;
+
+               $user = $this->getUser();
+               $lang = $this->getLanguage();
+               $timestamp = wfTimestamp( TS_MW, $file->getTimestamp() );
+               $img = $iscur ? $file->getName() : $file->getArchiveName();
+               $userId = $file->getUser( 'id' );
+               $userText = $file->getUser( 'text' );
+               $description = $file->getDescription( File::FOR_THIS_USER, $user );
+
+               $local = $this->current->isLocal();
+               $row = $selected = '';
+
+               // Deletion link
+               if ( $local && ( $user->isAllowedAny( 'delete', 'deletedhistory' ) ) ) {
+                       $row .= '<td>';
+                       # Link to remove from history
+                       if ( $user->isAllowed( 'delete' ) ) {
+                               $q = array( 'action' => 'delete' );
+                               if ( !$iscur ) {
+                                       $q['oldimage'] = $img;
+                               }
+                               $row .= Linker::linkKnown(
+                                       $this->title,
+                                       $this->msg( $iscur ? 'filehist-deleteall' : 'filehist-deleteone' )->escaped(),
+                                       array(), $q
+                               );
+                       }
+                       # Link to hide content. Don't show useless link to people who cannot hide revisions.
+                       $canHide = $user->isAllowed( 'deleterevision' );
+                       if ( $canHide || ( $user->isAllowed( 'deletedhistory' ) && $file->getVisibility() ) ) {
+                               if ( $user->isAllowed( 'delete' ) ) {
+                                       $row .= '<br />';
+                               }
+                               // If file is top revision or locked from this user, don't link
+                               if ( $iscur || !$file->userCan( File::DELETED_RESTRICTED, $user ) ) {
+                                       $del = Linker::revDeleteLinkDisabled( $canHide );
+                               } else {
+                                       list( $ts, ) = explode( '!', $img, 2 );
+                                       $query = array(
+                                               'type' => 'oldimage',
+                                               'target' => $this->title->getPrefixedText(),
+                                               'ids' => $ts,
+                                       );
+                                       $del = Linker::revDeleteLink( $query,
+                                               $file->isDeleted( File::DELETED_RESTRICTED ), $canHide );
+                               }
+                               $row .= $del;
+                       }
+                       $row .= '</td>';
+               }
+
+               // Reversion link/current indicator
+               $row .= '<td>';
+               if ( $iscur ) {
+                       $row .= $this->msg( 'filehist-current' )->escaped();
+               } elseif ( $local && $this->title->quickUserCan( 'edit', $user )
+                       && $this->title->quickUserCan( 'upload', $user )
+               ) {
+                       if ( $file->isDeleted( File::DELETED_FILE ) ) {
+                               $row .= $this->msg( 'filehist-revert' )->escaped();
+                       } else {
+                               $row .= Linker::linkKnown(
+                                       $this->title,
+                                       $this->msg( 'filehist-revert' )->escaped(),
+                                       array(),
+                                       array(
+                                               'action' => 'revert',
+                                               'oldimage' => $img,
+                                               'wpEditToken' => $user->getEditToken( $img )
+                                       )
+                               );
+                       }
+               }
+               $row .= '</td>';
+
+               // Date/time and image link
+               if ( $file->getTimestamp() === $this->img->getTimestamp() ) {
+                       $selected = "class='filehistory-selected'";
+               }
+               $row .= "<td $selected style='white-space: nowrap;'>";
+               if ( !$file->userCan( File::DELETED_FILE, $user ) ) {
+                       # Don't link to unviewable files
+                       $row .= '<span class="history-deleted">'
+                               . $lang->userTimeAndDate( $timestamp, $user ) . '</span>';
+               } elseif ( $file->isDeleted( File::DELETED_FILE ) ) {
+                       if ( $local ) {
+                               $this->preventClickjacking();
+                               $revdel = SpecialPage::getTitleFor( 'Revisiondelete' );
+                               # Make a link to review the image
+                               $url = Linker::linkKnown(
+                                       $revdel,
+                                       $lang->userTimeAndDate( $timestamp, $user ),
+                                       array(),
+                                       array(
+                                               'target' => $this->title->getPrefixedText(),
+                                               'file' => $img,
+                                               'token' => $user->getEditToken( $img )
+                                       )
+                               );
+                       } else {
+                               $url = $lang->userTimeAndDate( $timestamp, $user );
+                       }
+                       $row .= '<span class="history-deleted">' . $url . '</span>';
+               } elseif ( !$file->exists() ) {
+                       $row .= '<span class="mw-file-missing">'
+                               . $lang->userTimeAndDate( $timestamp, $user ) . '</span>';
+               } else {
+                       $url = $iscur ? $this->current->getUrl() : $this->current->getArchiveUrl( $img );
+                       $row .= Xml::element(
+                               'a',
+                               array( 'href' => $url ),
+                               $lang->userTimeAndDate( $timestamp, $user )
+                       );
+               }
+               $row .= "</td>";
+
+               // Thumbnail
+               if ( $this->showThumb ) {
+                       $row .= '<td>' . $this->getThumbForLine( $file ) . '</td>';
+               }
+
+               // Image dimensions + size
+               $row .= '<td>';
+               $row .= htmlspecialchars( $file->getDimensionsString() );
+               $row .= $this->msg( 'word-separator' )->escaped();
+               $row .= '<span style="white-space: nowrap;">';
+               $row .= $this->msg( 'parentheses' )->sizeParams( $file->getSize() )->escaped();
+               $row .= '</span>';
+               $row .= '</td>';
+
+               // Uploading user
+               $row .= '<td>';
+               // Hide deleted usernames
+               if ( $file->isDeleted( File::DELETED_USER ) ) {
+                       $row .= '<span class="history-deleted">'
+                               . $this->msg( 'rev-deleted-user' )->escaped() . '</span>';
+               } else {
+                       if ( $local ) {
+                               $row .= Linker::userLink( $userId, $userText );
+                               $row .= '<span style="white-space: nowrap;">';
+                               $row .= Linker::userToolLinks( $userId, $userText );
+                               $row .= '</span>';
+                       } else {
+                               $row .= htmlspecialchars( $userText );
+                       }
+               }
+               $row .= '</td>';
+
+               // Don't show deleted descriptions
+               if ( $file->isDeleted( File::DELETED_COMMENT ) ) {
+                       $row .= '<td><span class="history-deleted">' .
+                               $this->msg( 'rev-deleted-comment' )->escaped() . '</span></td>';
+               } else {
+                       $row .= '<td dir="' . $wgContLang->getDir() . '">' .
+                               Linker::formatComment( $description, $this->title ) . '</td>';
+               }
+
+               $rowClass = null;
+               Hooks::run( 'ImagePageFileHistoryLine', array( $this, $file, &$row, &$rowClass ) );
+               $classAttr = $rowClass ? " class='$rowClass'" : '';
+
+               return "<tr{$classAttr}>{$row}</tr>\n";
+       }
+
+       /**
+        * @param File $file
+        * @return string
+        */
+       protected function getThumbForLine( $file ) {
+               $lang = $this->getLanguage();
+               $user = $this->getUser();
+               if ( $file->allowInlineDisplay() && $file->userCan( File::DELETED_FILE, $user )
+                       && !$file->isDeleted( File::DELETED_FILE )
+               ) {
+                       $params = array(
+                               'width' => '120',
+                               'height' => '120',
+                       );
+                       $timestamp = wfTimestamp( TS_MW, $file->getTimestamp() );
+
+                       $thumbnail = $file->transform( $params );
+                       $options = array(
+                               'alt' => $this->msg( 'filehist-thumbtext',
+                                       $lang->userTimeAndDate( $timestamp, $user ),
+                                       $lang->userDate( $timestamp, $user ),
+                                       $lang->userTime( $timestamp, $user ) )->text(),
+                               'file-link' => true,
+                       );
+
+                       if ( !$thumbnail ) {
+                               return $this->msg( 'filehist-nothumb' )->escaped();
+                       }
+
+                       return $thumbnail->toHtml( $options );
+               } else {
+                       return $this->msg( 'filehist-nothumb' )->escaped();
+               }
+       }
+
+       /**
+        * @param bool $enable
+        */
+       protected function preventClickjacking( $enable = true ) {
+               $this->preventClickjacking = $enable;
+       }
+
+       /**
+        * @return bool
+        */
+       public function getPreventClickjacking() {
+               return $this->preventClickjacking;
+       }
+}
diff --git a/includes/page/ImageHistoryPseudoPager.php b/includes/page/ImageHistoryPseudoPager.php
new file mode 100644 (file)
index 0000000..e421d23
--- /dev/null
@@ -0,0 +1,205 @@
+<?php
+/**
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ */
+
+class ImageHistoryPseudoPager extends ReverseChronologicalPager {
+       protected $preventClickjacking = false;
+
+       /**
+        * @var File
+        */
+       protected $mImg;
+
+       /**
+        * @var Title
+        */
+       protected $mTitle;
+
+       /**
+        * @param ImagePage $imagePage
+        */
+       function __construct( $imagePage ) {
+               parent::__construct( $imagePage->getContext() );
+               $this->mImagePage = $imagePage;
+               $this->mTitle = clone $imagePage->getTitle();
+               $this->mTitle->setFragment( '#filehistory' );
+               $this->mImg = null;
+               $this->mHist = array();
+               $this->mRange = array( 0, 0 ); // display range
+       }
+
+       /**
+        * @return Title
+        */
+       function getTitle() {
+               return $this->mTitle;
+       }
+
+       function getQueryInfo() {
+               return false;
+       }
+
+       /**
+        * @return string
+        */
+       function getIndexField() {
+               return '';
+       }
+
+       /**
+        * @param object $row
+        * @return string
+        */
+       function formatRow( $row ) {
+               return '';
+       }
+
+       /**
+        * @return string
+        */
+       function getBody() {
+               $s = '';
+               $this->doQuery();
+               if ( count( $this->mHist ) ) {
+                       if ( $this->mImg->isLocal() ) {
+                               // Do a batch existence check for user pages and talkpages
+                               $linkBatch = new LinkBatch();
+                               for ( $i = $this->mRange[0]; $i <= $this->mRange[1]; $i++ ) {
+                                       $file = $this->mHist[$i];
+                                       $user = $file->getUser( 'text' );
+                                       $linkBatch->add( NS_USER, $user );
+                                       $linkBatch->add( NS_USER_TALK, $user );
+                               }
+                               $linkBatch->execute();
+                       }
+
+                       $list = new ImageHistoryList( $this->mImagePage );
+                       # Generate prev/next links
+                       $navLink = $this->getNavigationBar();
+                       $s = $list->beginImageHistoryList( $navLink );
+                       // Skip rows there just for paging links
+                       for ( $i = $this->mRange[0]; $i <= $this->mRange[1]; $i++ ) {
+                               $file = $this->mHist[$i];
+                               $s .= $list->imageHistoryLine( !$file->isOld(), $file );
+                       }
+                       $s .= $list->endImageHistoryList( $navLink );
+
+                       if ( $list->getPreventClickjacking() ) {
+                               $this->preventClickjacking();
+                       }
+               }
+               return $s;
+       }
+
+       function doQuery() {
+               if ( $this->mQueryDone ) {
+                       return;
+               }
+               $this->mImg = $this->mImagePage->getFile(); // ensure loading
+               if ( !$this->mImg->exists() ) {
+                       return;
+               }
+               $queryLimit = $this->mLimit + 1; // limit plus extra row
+               if ( $this->mIsBackwards ) {
+                       // Fetch the file history
+                       $this->mHist = $this->mImg->getHistory( $queryLimit, null, $this->mOffset, false );
+                       // The current rev may not meet the offset/limit
+                       $numRows = count( $this->mHist );
+                       if ( $numRows <= $this->mLimit && $this->mImg->getTimestamp() > $this->mOffset ) {
+                               $this->mHist = array_merge( array( $this->mImg ), $this->mHist );
+                       }
+               } else {
+                       // The current rev may not meet the offset
+                       if ( !$this->mOffset || $this->mImg->getTimestamp() < $this->mOffset ) {
+                               $this->mHist[] = $this->mImg;
+                       }
+                       // Old image versions (fetch extra row for nav links)
+                       $oiLimit = count( $this->mHist ) ? $this->mLimit : $this->mLimit + 1;
+                       // Fetch the file history
+                       $this->mHist = array_merge( $this->mHist,
+                               $this->mImg->getHistory( $oiLimit, $this->mOffset, null, false ) );
+               }
+               $numRows = count( $this->mHist ); // Total number of query results
+               if ( $numRows ) {
+                       # Index value of top item in the list
+                       $firstIndex = $this->mIsBackwards ?
+                               $this->mHist[$numRows - 1]->getTimestamp() : $this->mHist[0]->getTimestamp();
+                       # Discard the extra result row if there is one
+                       if ( $numRows > $this->mLimit && $numRows > 1 ) {
+                               if ( $this->mIsBackwards ) {
+                                       # Index value of item past the index
+                                       $this->mPastTheEndIndex = $this->mHist[0]->getTimestamp();
+                                       # Index value of bottom item in the list
+                                       $lastIndex = $this->mHist[1]->getTimestamp();
+                                       # Display range
+                                       $this->mRange = array( 1, $numRows - 1 );
+                               } else {
+                                       # Index value of item past the index
+                                       $this->mPastTheEndIndex = $this->mHist[$numRows - 1]->getTimestamp();
+                                       # Index value of bottom item in the list
+                                       $lastIndex = $this->mHist[$numRows - 2]->getTimestamp();
+                                       # Display range
+                                       $this->mRange = array( 0, $numRows - 2 );
+                               }
+                       } else {
+                               # Setting indexes to an empty string means that they will be
+                               # omitted if they would otherwise appear in URLs. It just so
+                               # happens that this  is the right thing to do in the standard
+                               # UI, in all the relevant cases.
+                               $this->mPastTheEndIndex = '';
+                               # Index value of bottom item in the list
+                               $lastIndex = $this->mIsBackwards ?
+                                       $this->mHist[0]->getTimestamp() : $this->mHist[$numRows - 1]->getTimestamp();
+                               # Display range
+                               $this->mRange = array( 0, $numRows - 1 );
+                       }
+               } else {
+                       $firstIndex = '';
+                       $lastIndex = '';
+                       $this->mPastTheEndIndex = '';
+               }
+               if ( $this->mIsBackwards ) {
+                       $this->mIsFirst = ( $numRows < $queryLimit );
+                       $this->mIsLast = ( $this->mOffset == '' );
+                       $this->mLastShown = $firstIndex;
+                       $this->mFirstShown = $lastIndex;
+               } else {
+                       $this->mIsFirst = ( $this->mOffset == '' );
+                       $this->mIsLast = ( $numRows < $queryLimit );
+                       $this->mLastShown = $lastIndex;
+                       $this->mFirstShown = $firstIndex;
+               }
+               $this->mQueryDone = true;
+       }
+
+       /**
+        * @param bool $enable
+        */
+       protected function preventClickjacking( $enable = true ) {
+               $this->preventClickjacking = $enable;
+       }
+
+       /**
+        * @return bool
+        */
+       public function getPreventClickjacking() {
+               return $this->preventClickjacking;
+       }
+
+}
index 0ba1328..d171e89 100644 (file)
@@ -1242,497 +1242,3 @@ EOT
        }
 
 }
-
-/**
- * Builds the image revision log shown on image pages
- *
- * @ingroup Media
- */
-class ImageHistoryList extends ContextSource {
-
-       /**
-        * @var Title
-        */
-       protected $title;
-
-       /**
-        * @var File
-        */
-       protected $img;
-
-       /**
-        * @var ImagePage
-        */
-       protected $imagePage;
-
-       /**
-        * @var File
-        */
-       protected $current;
-
-       protected $repo, $showThumb;
-       protected $preventClickjacking = false;
-
-       /**
-        * @param ImagePage $imagePage
-        */
-       public function __construct( $imagePage ) {
-               global $wgShowArchiveThumbnails;
-               $this->current = $imagePage->getFile();
-               $this->img = $imagePage->getDisplayedFile();
-               $this->title = $imagePage->getTitle();
-               $this->imagePage = $imagePage;
-               $this->showThumb = $wgShowArchiveThumbnails && $this->img->canRender();
-               $this->setContext( $imagePage->getContext() );
-       }
-
-       /**
-        * @return ImagePage
-        */
-       public function getImagePage() {
-               return $this->imagePage;
-       }
-
-       /**
-        * @return File
-        */
-       public function getFile() {
-               return $this->img;
-       }
-
-       /**
-        * @param string $navLinks
-        * @return string
-        */
-       public function beginImageHistoryList( $navLinks = '' ) {
-               return Xml::element( 'h2', array( 'id' => 'filehistory' ), $this->msg( 'filehist' )->text() )
-                       . "\n"
-                       . "<div id=\"mw-imagepage-section-filehistory\">\n"
-                       . $this->msg( 'filehist-help' )->parseAsBlock()
-                       . $navLinks . "\n"
-                       . Xml::openElement( 'table', array( 'class' => 'wikitable filehistory' ) ) . "\n"
-                       . '<tr><th></th>'
-                       . ( $this->current->isLocal()
-                               && ( $this->getUser()->isAllowedAny( 'delete', 'deletedhistory' ) ) ? '<th></th>' : '' )
-                       . '<th>' . $this->msg( 'filehist-datetime' )->escaped() . '</th>'
-                       . ( $this->showThumb ? '<th>' . $this->msg( 'filehist-thumb' )->escaped() . '</th>' : '' )
-                       . '<th>' . $this->msg( 'filehist-dimensions' )->escaped() . '</th>'
-                       . '<th>' . $this->msg( 'filehist-user' )->escaped() . '</th>'
-                       . '<th>' . $this->msg( 'filehist-comment' )->escaped() . '</th>'
-                       . "</tr>\n";
-       }
-
-       /**
-        * @param string $navLinks
-        * @return string
-        */
-       public function endImageHistoryList( $navLinks = '' ) {
-               return "</table>\n$navLinks\n</div>\n";
-       }
-
-       /**
-        * @param bool $iscur
-        * @param File $file
-        * @return string
-        */
-       public function imageHistoryLine( $iscur, $file ) {
-               global $wgContLang;
-
-               $user = $this->getUser();
-               $lang = $this->getLanguage();
-               $timestamp = wfTimestamp( TS_MW, $file->getTimestamp() );
-               $img = $iscur ? $file->getName() : $file->getArchiveName();
-               $userId = $file->getUser( 'id' );
-               $userText = $file->getUser( 'text' );
-               $description = $file->getDescription( File::FOR_THIS_USER, $user );
-
-               $local = $this->current->isLocal();
-               $row = $selected = '';
-
-               // Deletion link
-               if ( $local && ( $user->isAllowedAny( 'delete', 'deletedhistory' ) ) ) {
-                       $row .= '<td>';
-                       # Link to remove from history
-                       if ( $user->isAllowed( 'delete' ) ) {
-                               $q = array( 'action' => 'delete' );
-                               if ( !$iscur ) {
-                                       $q['oldimage'] = $img;
-                               }
-                               $row .= Linker::linkKnown(
-                                       $this->title,
-                                       $this->msg( $iscur ? 'filehist-deleteall' : 'filehist-deleteone' )->escaped(),
-                                       array(), $q
-                               );
-                       }
-                       # Link to hide content. Don't show useless link to people who cannot hide revisions.
-                       $canHide = $user->isAllowed( 'deleterevision' );
-                       if ( $canHide || ( $user->isAllowed( 'deletedhistory' ) && $file->getVisibility() ) ) {
-                               if ( $user->isAllowed( 'delete' ) ) {
-                                       $row .= '<br />';
-                               }
-                               // If file is top revision or locked from this user, don't link
-                               if ( $iscur || !$file->userCan( File::DELETED_RESTRICTED, $user ) ) {
-                                       $del = Linker::revDeleteLinkDisabled( $canHide );
-                               } else {
-                                       list( $ts, ) = explode( '!', $img, 2 );
-                                       $query = array(
-                                               'type' => 'oldimage',
-                                               'target' => $this->title->getPrefixedText(),
-                                               'ids' => $ts,
-                                       );
-                                       $del = Linker::revDeleteLink( $query,
-                                               $file->isDeleted( File::DELETED_RESTRICTED ), $canHide );
-                               }
-                               $row .= $del;
-                       }
-                       $row .= '</td>';
-               }
-
-               // Reversion link/current indicator
-               $row .= '<td>';
-               if ( $iscur ) {
-                       $row .= $this->msg( 'filehist-current' )->escaped();
-               } elseif ( $local && $this->title->quickUserCan( 'edit', $user )
-                       && $this->title->quickUserCan( 'upload', $user )
-               ) {
-                       if ( $file->isDeleted( File::DELETED_FILE ) ) {
-                               $row .= $this->msg( 'filehist-revert' )->escaped();
-                       } else {
-                               $row .= Linker::linkKnown(
-                                       $this->title,
-                                       $this->msg( 'filehist-revert' )->escaped(),
-                                       array(),
-                                       array(
-                                               'action' => 'revert',
-                                               'oldimage' => $img,
-                                               'wpEditToken' => $user->getEditToken( $img )
-                                       )
-                               );
-                       }
-               }
-               $row .= '</td>';
-
-               // Date/time and image link
-               if ( $file->getTimestamp() === $this->img->getTimestamp() ) {
-                       $selected = "class='filehistory-selected'";
-               }
-               $row .= "<td $selected style='white-space: nowrap;'>";
-               if ( !$file->userCan( File::DELETED_FILE, $user ) ) {
-                       # Don't link to unviewable files
-                       $row .= '<span class="history-deleted">'
-                               . $lang->userTimeAndDate( $timestamp, $user ) . '</span>';
-               } elseif ( $file->isDeleted( File::DELETED_FILE ) ) {
-                       if ( $local ) {
-                               $this->preventClickjacking();
-                               $revdel = SpecialPage::getTitleFor( 'Revisiondelete' );
-                               # Make a link to review the image
-                               $url = Linker::linkKnown(
-                                       $revdel,
-                                       $lang->userTimeAndDate( $timestamp, $user ),
-                                       array(),
-                                       array(
-                                               'target' => $this->title->getPrefixedText(),
-                                               'file' => $img,
-                                               'token' => $user->getEditToken( $img )
-                                       )
-                               );
-                       } else {
-                               $url = $lang->userTimeAndDate( $timestamp, $user );
-                       }
-                       $row .= '<span class="history-deleted">' . $url . '</span>';
-               } elseif ( !$file->exists() ) {
-                       $row .= '<span class="mw-file-missing">'
-                               . $lang->userTimeAndDate( $timestamp, $user ) . '</span>';
-               } else {
-                       $url = $iscur ? $this->current->getUrl() : $this->current->getArchiveUrl( $img );
-                       $row .= Xml::element(
-                               'a',
-                               array( 'href' => $url ),
-                               $lang->userTimeAndDate( $timestamp, $user )
-                       );
-               }
-               $row .= "</td>";
-
-               // Thumbnail
-               if ( $this->showThumb ) {
-                       $row .= '<td>' . $this->getThumbForLine( $file ) . '</td>';
-               }
-
-               // Image dimensions + size
-               $row .= '<td>';
-               $row .= htmlspecialchars( $file->getDimensionsString() );
-               $row .= $this->msg( 'word-separator' )->escaped();
-               $row .= '<span style="white-space: nowrap;">';
-               $row .= $this->msg( 'parentheses' )->sizeParams( $file->getSize() )->escaped();
-               $row .= '</span>';
-               $row .= '</td>';
-
-               // Uploading user
-               $row .= '<td>';
-               // Hide deleted usernames
-               if ( $file->isDeleted( File::DELETED_USER ) ) {
-                       $row .= '<span class="history-deleted">'
-                               . $this->msg( 'rev-deleted-user' )->escaped() . '</span>';
-               } else {
-                       if ( $local ) {
-                               $row .= Linker::userLink( $userId, $userText );
-                               $row .= '<span style="white-space: nowrap;">';
-                               $row .= Linker::userToolLinks( $userId, $userText );
-                               $row .= '</span>';
-                       } else {
-                               $row .= htmlspecialchars( $userText );
-                       }
-               }
-               $row .= '</td>';
-
-               // Don't show deleted descriptions
-               if ( $file->isDeleted( File::DELETED_COMMENT ) ) {
-                       $row .= '<td><span class="history-deleted">' .
-                               $this->msg( 'rev-deleted-comment' )->escaped() . '</span></td>';
-               } else {
-                       $row .= '<td dir="' . $wgContLang->getDir() . '">' .
-                               Linker::formatComment( $description, $this->title ) . '</td>';
-               }
-
-               $rowClass = null;
-               Hooks::run( 'ImagePageFileHistoryLine', array( $this, $file, &$row, &$rowClass ) );
-               $classAttr = $rowClass ? " class='$rowClass'" : '';
-
-               return "<tr{$classAttr}>{$row}</tr>\n";
-       }
-
-       /**
-        * @param File $file
-        * @return string
-        */
-       protected function getThumbForLine( $file ) {
-               $lang = $this->getLanguage();
-               $user = $this->getUser();
-               if ( $file->allowInlineDisplay() && $file->userCan( File::DELETED_FILE, $user )
-                       && !$file->isDeleted( File::DELETED_FILE )
-               ) {
-                       $params = array(
-                               'width' => '120',
-                               'height' => '120',
-                       );
-                       $timestamp = wfTimestamp( TS_MW, $file->getTimestamp() );
-
-                       $thumbnail = $file->transform( $params );
-                       $options = array(
-                               'alt' => $this->msg( 'filehist-thumbtext',
-                                       $lang->userTimeAndDate( $timestamp, $user ),
-                                       $lang->userDate( $timestamp, $user ),
-                                       $lang->userTime( $timestamp, $user ) )->text(),
-                               'file-link' => true,
-                       );
-
-                       if ( !$thumbnail ) {
-                               return $this->msg( 'filehist-nothumb' )->escaped();
-                       }
-
-                       return $thumbnail->toHtml( $options );
-               } else {
-                       return $this->msg( 'filehist-nothumb' )->escaped();
-               }
-       }
-
-       /**
-        * @param bool $enable
-        */
-       protected function preventClickjacking( $enable = true ) {
-               $this->preventClickjacking = $enable;
-       }
-
-       /**
-        * @return bool
-        */
-       public function getPreventClickjacking() {
-               return $this->preventClickjacking;
-       }
-}
-
-class ImageHistoryPseudoPager extends ReverseChronologicalPager {
-       protected $preventClickjacking = false;
-
-       /**
-        * @var File
-        */
-       protected $mImg;
-
-       /**
-        * @var Title
-        */
-       protected $mTitle;
-
-       /**
-        * @param ImagePage $imagePage
-        */
-       function __construct( $imagePage ) {
-               parent::__construct( $imagePage->getContext() );
-               $this->mImagePage = $imagePage;
-               $this->mTitle = clone $imagePage->getTitle();
-               $this->mTitle->setFragment( '#filehistory' );
-               $this->mImg = null;
-               $this->mHist = array();
-               $this->mRange = array( 0, 0 ); // display range
-       }
-
-       /**
-        * @return Title
-        */
-       function getTitle() {
-               return $this->mTitle;
-       }
-
-       function getQueryInfo() {
-               return false;
-       }
-
-       /**
-        * @return string
-        */
-       function getIndexField() {
-               return '';
-       }
-
-       /**
-        * @param object $row
-        * @return string
-        */
-       function formatRow( $row ) {
-               return '';
-       }
-
-       /**
-        * @return string
-        */
-       function getBody() {
-               $s = '';
-               $this->doQuery();
-               if ( count( $this->mHist ) ) {
-                       if ( $this->mImg->isLocal() ) {
-                               // Do a batch existence check for user pages and talkpages
-                               $linkBatch = new LinkBatch();
-                               for ( $i = $this->mRange[0]; $i <= $this->mRange[1]; $i++ ) {
-                                       $file = $this->mHist[$i];
-                                       $user = $file->getUser( 'text' );
-                                       $linkBatch->add( NS_USER, $user );
-                                       $linkBatch->add( NS_USER_TALK, $user );
-                               }
-                               $linkBatch->execute();
-                       }
-
-                       $list = new ImageHistoryList( $this->mImagePage );
-                       # Generate prev/next links
-                       $navLink = $this->getNavigationBar();
-                       $s = $list->beginImageHistoryList( $navLink );
-                       // Skip rows there just for paging links
-                       for ( $i = $this->mRange[0]; $i <= $this->mRange[1]; $i++ ) {
-                               $file = $this->mHist[$i];
-                               $s .= $list->imageHistoryLine( !$file->isOld(), $file );
-                       }
-                       $s .= $list->endImageHistoryList( $navLink );
-
-                       if ( $list->getPreventClickjacking() ) {
-                               $this->preventClickjacking();
-                       }
-               }
-               return $s;
-       }
-
-       function doQuery() {
-               if ( $this->mQueryDone ) {
-                       return;
-               }
-               $this->mImg = $this->mImagePage->getFile(); // ensure loading
-               if ( !$this->mImg->exists() ) {
-                       return;
-               }
-               $queryLimit = $this->mLimit + 1; // limit plus extra row
-               if ( $this->mIsBackwards ) {
-                       // Fetch the file history
-                       $this->mHist = $this->mImg->getHistory( $queryLimit, null, $this->mOffset, false );
-                       // The current rev may not meet the offset/limit
-                       $numRows = count( $this->mHist );
-                       if ( $numRows <= $this->mLimit && $this->mImg->getTimestamp() > $this->mOffset ) {
-                               $this->mHist = array_merge( array( $this->mImg ), $this->mHist );
-                       }
-               } else {
-                       // The current rev may not meet the offset
-                       if ( !$this->mOffset || $this->mImg->getTimestamp() < $this->mOffset ) {
-                               $this->mHist[] = $this->mImg;
-                       }
-                       // Old image versions (fetch extra row for nav links)
-                       $oiLimit = count( $this->mHist ) ? $this->mLimit : $this->mLimit + 1;
-                       // Fetch the file history
-                       $this->mHist = array_merge( $this->mHist,
-                               $this->mImg->getHistory( $oiLimit, $this->mOffset, null, false ) );
-               }
-               $numRows = count( $this->mHist ); // Total number of query results
-               if ( $numRows ) {
-                       # Index value of top item in the list
-                       $firstIndex = $this->mIsBackwards ?
-                               $this->mHist[$numRows - 1]->getTimestamp() : $this->mHist[0]->getTimestamp();
-                       # Discard the extra result row if there is one
-                       if ( $numRows > $this->mLimit && $numRows > 1 ) {
-                               if ( $this->mIsBackwards ) {
-                                       # Index value of item past the index
-                                       $this->mPastTheEndIndex = $this->mHist[0]->getTimestamp();
-                                       # Index value of bottom item in the list
-                                       $lastIndex = $this->mHist[1]->getTimestamp();
-                                       # Display range
-                                       $this->mRange = array( 1, $numRows - 1 );
-                               } else {
-                                       # Index value of item past the index
-                                       $this->mPastTheEndIndex = $this->mHist[$numRows - 1]->getTimestamp();
-                                       # Index value of bottom item in the list
-                                       $lastIndex = $this->mHist[$numRows - 2]->getTimestamp();
-                                       # Display range
-                                       $this->mRange = array( 0, $numRows - 2 );
-                               }
-                       } else {
-                               # Setting indexes to an empty string means that they will be
-                               # omitted if they would otherwise appear in URLs. It just so
-                               # happens that this  is the right thing to do in the standard
-                               # UI, in all the relevant cases.
-                               $this->mPastTheEndIndex = '';
-                               # Index value of bottom item in the list
-                               $lastIndex = $this->mIsBackwards ?
-                                       $this->mHist[0]->getTimestamp() : $this->mHist[$numRows - 1]->getTimestamp();
-                               # Display range
-                               $this->mRange = array( 0, $numRows - 1 );
-                       }
-               } else {
-                       $firstIndex = '';
-                       $lastIndex = '';
-                       $this->mPastTheEndIndex = '';
-               }
-               if ( $this->mIsBackwards ) {
-                       $this->mIsFirst = ( $numRows < $queryLimit );
-                       $this->mIsLast = ( $this->mOffset == '' );
-                       $this->mLastShown = $firstIndex;
-                       $this->mFirstShown = $lastIndex;
-               } else {
-                       $this->mIsFirst = ( $this->mOffset == '' );
-                       $this->mIsLast = ( $numRows < $queryLimit );
-                       $this->mLastShown = $lastIndex;
-                       $this->mFirstShown = $firstIndex;
-               }
-               $this->mQueryDone = true;
-       }
-
-       /**
-        * @param bool $enable
-        */
-       protected function preventClickjacking( $enable = true ) {
-               $this->preventClickjacking = $enable;
-       }
-
-       /**
-        * @return bool
-        */
-       public function getPreventClickjacking() {
-               return $this->preventClickjacking;
-       }
-
-}