Update to MediaWiki 1.22.0

5 files changed, 862 insertions, 0 deletions

diff --git a/includes/gallery/ImageGalleryBase.php b/includes/gallery/ImageGalleryBase.php
new file mode 100644
index 00000000..f8b8c505
--- /dev/null
+++ b/includes/gallery/ImageGalleryBase.php
@@ -0,0 +1,331 @@
+<?php
+/**
+ * Image gallery.
+ *
+ * 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
+ */
+
+/**
+ * Image gallery
+ *
+ * Add images to the gallery using add(), then render that list to HTML using toHTML().
+ *
+ * @ingroup Media
+ */
+abstract class ImageGalleryBase extends ContextSource {
+	var $mImages, $mShowBytes, $mShowFilename, $mMode;
+	var $mCaption = false;
+
+	/**
+	 * Hide blacklisted images?
+	 */
+	var $mHideBadImages;
+
+	/**
+	 * Registered parser object for output callbacks
+	 * @var Parser
+	 */
+	var $mParser;
+
+	/**
+	 * Contextual title, used when images are being screened
+	 * against the bad image list
+	 */
+	protected $contextTitle = false;
+
+	protected $mAttribs = array();
+
+	static private $modeMapping = false;
+
+	/**
+	 * Get a new image gallery. This is the method other callers
+	 * should use to get a gallery.
+	 *
+	 * @param String|bool $mode Mode to use. False to use the default.
+	 */
+	static function factory( $mode = false ) {
+		global $wgGalleryOptions, $wgContLang;
+		self::loadModes();
+		if ( !$mode ) {
+			$mode = $wgGalleryOptions['mode'];
+		}
+
+		$mode = $wgContLang->lc( $mode );
+
+		if ( isset( self::$modeMapping[$mode] ) ) {
+			return new self::$modeMapping[$mode]( $mode );
+		} else {
+			throw new MWException( "No gallery class registered for mode $mode" );
+		}
+	}
+
+	static private function loadModes() {
+		if ( self::$modeMapping === false ) {
+			self::$modeMapping = array(
+				'traditional' => 'TraditionalImageGallery',
+				'nolines' => 'NolinesImageGallery',
+				'packed' => 'PackedImageGallery',
+				'packed-hover' => 'PackedHoverImageGallery',
+				'packed-overlay' => 'PackedOverlayImageGallery',
+			);
+			// Allow extensions to make a new gallery format.
+			wfRunHooks( 'GalleryGetModes', self::$modeMapping );
+		}
+	}
+
+	/**
+	 * Create a new image gallery object.
+	 *
+	 * You should not call this directly, but instead use
+	 * ImageGalleryBase::factory().
+	 */
+	function __construct( $mode = 'traditional' ) {
+		global $wgGalleryOptions;
+		$this->mImages = array();
+		$this->mShowBytes = $wgGalleryOptions['showBytes'];
+		$this->mShowFilename = true;
+		$this->mParser = false;
+		$this->mHideBadImages = false;
+		$this->mPerRow = $wgGalleryOptions['imagesPerRow'];
+		$this->mWidths = $wgGalleryOptions['imageWidth'];
+		$this->mHeights = $wgGalleryOptions['imageHeight'];
+		$this->mCaptionLength = $wgGalleryOptions['captionLength'];
+		$this->mMode = $mode;
+	}
+
+	/**
+	 * Register a parser object. If you do not set this
+	 * and the output of this gallery ends up in parser
+	 * cache, the javascript will break!
+	 *
+	 * @note This also triggers using the page's target
+	 *  language instead of the user language.
+	 *
+	 * @param $parser Parser
+	 */
+	function setParser( $parser ) {
+		$this->mParser = $parser;
+	}
+
+	/**
+	 * Set bad image flag
+	 */
+	function setHideBadImages( $flag = true ) {
+		$this->mHideBadImages = $flag;
+	}
+
+	/**
+	 * Set the caption (as plain text)
+	 *
+	 * @param string $caption Caption
+	 */
+	function setCaption( $caption ) {
+		$this->mCaption = htmlspecialchars( $caption );
+	}
+
+	/**
+	 * Set the caption (as HTML)
+	 *
+	 * @param string $caption Caption
+	 */
+	public function setCaptionHtml( $caption ) {
+		$this->mCaption = $caption;
+	}
+
+	/**
+	 * Set how many images will be displayed per row.
+	 *
+	 * @param $num Integer >= 0; If perrow=0 the gallery layout will adapt to screensize
+	 * invalid numbers will be rejected
+	 */
+	public function setPerRow( $num ) {
+		if ( $num >= 0 ) {
+			$this->mPerRow = (int)$num;
+		}
+	}
+
+	/**
+	 * Set how wide each image will be, in pixels.
+	 *
+	 * @param $num Integer > 0; invalid numbers will be ignored
+	 */
+	public function setWidths( $num ) {
+		if ( $num > 0 ) {
+			$this->mWidths = (int)$num;
+		}
+	}
+
+	/**
+	 * Set how high each image will be, in pixels.
+	 *
+	 * @param $num Integer > 0; invalid numbers will be ignored
+	 */
+	public function setHeights( $num ) {
+		if ( $num > 0 ) {
+			$this->mHeights = (int)$num;
+		}
+	}
+
+	/**
+	 * Allow setting additional options. This is meant
+	 * to allow extensions to add additional parameters to
+	 * <gallery> parser tag.
+	 *
+	 * @param Array $options Attributes of gallery tag.
+	 */
+	public function setAdditionalOptions( $options ) { }
+
+	/**
+	 * Instruct the class to use a specific skin for rendering
+	 *
+	 * @param $skin Skin object
+	 * @deprecated since 1.18 Not used anymore
+	 */
+	function useSkin( $skin ) {
+		wfDeprecated( __METHOD__, '1.18' );
+		/* no op */
+	}
+
+	/**
+	 * Add an image to the gallery.
+	 *
+	 * @param $title Title object of the image that is added to the gallery
+	 * @param $html  String: Additional HTML text to be shown. The name and size of the image are always shown.
+	 * @param $alt   String: Alt text for the image
+	 * @param $link  String: Override image link (optional)
+	 * @param $handlerOpts Array: Array of options for image handler (aka page number)
+	 */
+	function add( $title, $html = '', $alt = '', $link = '', $handlerOpts = array() ) {
+		if ( $title instanceof File ) {
+			// Old calling convention
+			$title = $title->getTitle();
+		}
+		$this->mImages[] = array( $title, $html, $alt, $link, $handlerOpts );
+		wfDebug( 'ImageGallery::add ' . $title->getText() . "\n" );
+	}
+
+	/**
+	 * Add an image at the beginning of the gallery.
+	 *
+	 * @param $title Title object of the image that is added to the gallery
+	 * @param $html  String: Additional HTML text to be shown. The name and size of the image are always shown.
+	 * @param $alt   String: Alt text for the image
+	 * @param $link  String: Override image link (optional)
+	 * @param $handlerOpts Array: Array of options for image handler (aka page number)
+	 */
+	function insert( $title, $html = '', $alt = '', $link = '', $handlerOpts = array() ) {
+		if ( $title instanceof File ) {
+			// Old calling convention
+			$title = $title->getTitle();
+		}
+		array_unshift( $this->mImages, array( &$title, $html, $alt, $link, $handlerOpts ) );
+	}
+
+	/**
+	 * isEmpty() returns true if the gallery contains no images
+	 * @return bool
+	 */
+	function isEmpty() {
+		return empty( $this->mImages );
+	}
+
+	/**
+	 * Enable/Disable showing of the file size of an image in the gallery.
+	 * Enabled by default.
+	 *
+	 * @param $f Boolean: set to false to disable.
+	 */
+	function setShowBytes( $f ) {
+		$this->mShowBytes = (bool)$f;
+	}
+
+	/**
+	 * Enable/Disable showing of the filename of an image in the gallery.
+	 * Enabled by default.
+	 *
+	 * @param $f Boolean: set to false to disable.
+	 */
+	function setShowFilename( $f ) {
+		$this->mShowFilename = (bool)$f;
+	}
+
+	/**
+	 * Set arbitrary attributes to go on the HTML gallery output element.
+	 * Should be suitable for a <ul> element.
+	 *
+	 * Note -- if taking from user input, you should probably run through
+	 * Sanitizer::validateAttributes() first.
+	 *
+	 * @param array $attribs of HTML attribute pairs
+	 */
+	function setAttributes( $attribs ) {
+		$this->mAttribs = $attribs;
+	}
+
+	/**
+	 * Display an html representation of the gallery
+	 *
+	 * @return String The html
+	 */
+	abstract public function toHTML();
+
+	/**
+	 * @return Integer: number of images in the gallery
+	 */
+	public function count() {
+		return count( $this->mImages );
+	}
+
+	/**
+	 * Set the contextual title
+	 *
+	 * @param $title Title: contextual title
+	 */
+	public function setContextTitle( $title ) {
+		$this->contextTitle = $title;
+	}
+
+	/**
+	 * Get the contextual title, if applicable
+	 *
+	 * @return mixed Title or false
+	 */
+	public function getContextTitle() {
+		return is_object( $this->contextTitle ) && $this->contextTitle instanceof Title
+			? $this->contextTitle
+			: false;
+	}
+
+	/**
+	 * Determines the correct language to be used for this image gallery
+	 * @return Language object
+	 */
+	protected function getRenderLang() {
+		return $this->mParser
+			? $this->mParser->getTargetLanguage()
+			: $this->getLanguage();
+	}
+
+	/* Old constants no longer used.
+	const THUMB_PADDING = 30;
+	const GB_PADDING = 5;
+	const GB_BORDERS = 8;
+	*/
+
+}
+
diff --git a/includes/gallery/NolinesImageGallery.php b/includes/gallery/NolinesImageGallery.php
new file mode 100644
index 00000000..6b0d0fa6
--- /dev/null
+++ b/includes/gallery/NolinesImageGallery.php
@@ -0,0 +1,38 @@
+<?php
+/**
+ * Nolines image gallery. Like "traditional" but without borders and
+ * less padding.
+ *
+ * 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 NolinesImageGallery extends TraditionalImageGallery {
+
+	protected function getThumbPadding() {
+		return 0;
+	}
+
+	protected function getGBBorders() {
+		// This accounts for extra space between <li> elements.
+		return 4;
+	}
+
+	protected function getVPad( $boxHeight, $thumbHeight ) {
+		return 0;
+	}
+}
diff --git a/includes/gallery/PackedImageGallery.php b/includes/gallery/PackedImageGallery.php
new file mode 100644
index 00000000..963ee6b9
--- /dev/null
+++ b/includes/gallery/PackedImageGallery.php
@@ -0,0 +1,105 @@
+<?php
+/**
+ * Packed image gallery. All images adjusted to be same height.
+ *
+ * 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 PackedImageGallery extends TraditionalImageGallery {
+
+	function __construct( $mode = 'traditional' ) {
+		parent::__construct( $mode );
+		// Does not support per row option.
+		$this->mPerRow = 0;
+	}
+
+	/**
+	 * We artificially have 1.5 the resolution neccessary so that
+	 * we can scale it up by that much on the client side, without
+	 * worrying about requesting a new image.
+	 */
+	const SCALE_FACTOR = 1.5;
+
+	protected function getVPad( $boxHeight, $thumbHeight ) {
+		return ( $this->getThumbPadding() + $boxHeight - $thumbHeight / self::SCALE_FACTOR ) / 2;
+	}
+
+	protected function getThumbPadding() {
+		return 0;
+	}
+
+	protected function getGBPadding() {
+		return 2;
+	}
+
+	/**
+	 * @param File $img The file being transformed. May be false
+	 */
+	protected function getThumbParams( $img ) {
+		if ( $img && $img->getMediaType() === MEDIATYPE_AUDIO ) {
+			$width = $this->mWidths;
+		} else {
+			// We want the width not to be the constraining
+			// factor, so use random big number.
+			$width = $this->mHeights * 10 + 100;
+		}
+		// self::SCALE_FACTOR so the js has some room to manipulate sizes.
+		return array(
+			'width' => $width * self::SCALE_FACTOR,
+			'height' => $this->mHeights * self::SCALE_FACTOR,
+		);
+	}
+
+	protected function getThumbDivWidth( $thumbWidth ) {
+		// Require at least 60px wide, so caption is wide enough to work.
+		if ( $thumbWidth < 60 * self::SCALE_FACTOR ) {
+			$thumbWidth = 60 * self::SCALE_FACTOR;
+		}
+		return $thumbWidth / self::SCALE_FACTOR + $this->getThumbPadding();
+	}
+
+	/**
+	 * @param MediaTransformOutput|bool $thumb the thumbnail, or false if no thumb (which can happen)
+	 */
+	protected function getGBWidth( $thumb ) {
+		$thumbWidth = $thumb ? $thumb->getWidth() : $this->mWidths * self::SCALE_FACTOR;
+		return $this->getThumbDivWidth( $thumbWidth ) + $this->getGBPadding();
+	}
+
+	protected function adjustImageParameters( $thumb, &$imageParameters ) {
+		// Re-adjust back to normal size.
+		$imageParameters['override-width'] = ceil( $thumb->getWidth() / self::SCALE_FACTOR );
+		$imageParameters['override-height'] = ceil( $thumb->getHeight() / self::SCALE_FACTOR );
+	}
+
+	/**
+	 * Add javascript which auto-justifies the rows by manipulating the image sizes.
+	 * Also ensures that the hover version of this degrades gracefully.
+	 */
+	protected function getModules() {
+		return array( 'mediawiki.page.gallery' );
+	}
+
+	/**
+	 * Do not support per-row on packed. It really doesn't work
+	 * since the images have varying widths.
+	 */
+	public function setPerRow( $num ) {
+		return;
+	}
+}
diff --git a/includes/gallery/PackedOverlayImageGallery.php b/includes/gallery/PackedOverlayImageGallery.php
new file mode 100644
index 00000000..bba06fcf
--- /dev/null
+++ b/includes/gallery/PackedOverlayImageGallery.php
@@ -0,0 +1,60 @@
+<?php
+/**
+ * Packed overlay image gallery. All images adjusted to be same height and
+ * image caption being placed over top of image.
+ *
+ * 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 PackedOverlayImageGallery extends PackedImageGallery {
+
+	/**
+	 * Add the wrapper html around the thumb's caption
+	 *
+	 * @param String $galleryText The caption
+	 * @param MediaTransformOutput|boolean $thumb The thumb this caption is for or false for bad image.
+	 */
+	protected function wrapGalleryText( $galleryText, $thumb ) {
+
+		// If we have no text, do not output anything to avoid
+		// ugly white overlay.
+		if ( trim( $galleryText ) === '' ) {
+			return '';
+		}
+
+		# ATTENTION: The newline after <div class="gallerytext"> is needed to accommodate htmltidy which
+		# in version 4.8.6 generated crackpot html in its absence, see:
+		# http://bugzilla.wikimedia.org/show_bug.cgi?id=1765 -Ævar
+
+		$thumbWidth = $this->getGBWidth( $thumb ) - $this->getThumbPadding() - $this->getGBPadding();
+		$captionWidth = ceil( $thumbWidth - 20 );
+
+		$outerWrapper = '<div class="gallerytextwrapper" style="width: ' . $captionWidth . 'px">';
+		return "\n\t\t\t" . $outerWrapper . '<div class="gallerytext">' . "\n"
+					. $galleryText
+					. "\n\t\t\t</div>";
+	}
+}
+
+/**
+ * Same as Packed except different CSS is applied to make the
+ * caption only show up on hover. If a touch screen is detected,
+ * falls back to PackedHoverGallery. Degrades gracefully for
+ * screen readers.
+ */
+class PackedHoverImageGallery extends PackedOverlayImageGallery { }
diff --git a/includes/gallery/TraditionalImageGallery.php b/includes/gallery/TraditionalImageGallery.php
new file mode 100644
index 00000000..1f60fa69
--- /dev/null
+++ b/includes/gallery/TraditionalImageGallery.php
@@ -0,0 +1,328 @@
+<?php
+/**
+ * Image gallery.
+ *
+ * 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 TraditionalImageGallery extends ImageGalleryBase {
+
+
+	/**
+	 * Return a HTML representation of the image gallery
+	 *
+	 * For each image in the gallery, display
+	 * - a thumbnail
+	 * - the image name
+	 * - the additional text provided when adding the image
+	 * - the size of the image
+	 *
+	 * @return string
+	 */
+	function toHTML() {
+		if ( $this->mPerRow > 0 ) {
+			$maxwidth = $this->mPerRow * ( $this->mWidths + $this->getAllPadding() );
+			$oldStyle = isset( $this->mAttribs['style'] ) ? $this->mAttribs['style'] : '';
+			# _width is ignored by any sane browser. IE6 doesn't know max-width so it uses _width instead
+			$this->mAttribs['style'] = "max-width: {$maxwidth}px;_width: {$maxwidth}px;" . $oldStyle;
+		}
+
+		$attribs = Sanitizer::mergeAttributes(
+			array( 'class' => 'gallery mw-gallery-' . $this->mMode ), $this->mAttribs );
+
+		$modules = $this->getModules();
+
+		if ( $this->mParser ) {
+			$this->mParser->getOutput()->addModules( $modules );
+		} else {
+			$this->getOutput()->addModules( $modules );
+		}
+		$output = Xml::openElement( 'ul', $attribs );
+		if ( $this->mCaption ) {
+			$output .= "\n\t<li class='gallerycaption'>{$this->mCaption}</li>";
+		}
+
+		$lang = $this->getRenderLang();
+		# Output each image...
+		foreach ( $this->mImages as $pair ) {
+			$nt = $pair[0];
+			$text = $pair[1]; # "text" means "caption" here
+			$alt = $pair[2];
+			$link = $pair[3];
+
+			$descQuery = false;
+			if ( $nt->getNamespace() === NS_FILE ) {
+				# Get the file...
+				if ( $this->mParser instanceof Parser ) {
+					# Give extensions a chance to select the file revision for us
+					$options = array();
+					wfRunHooks( 'BeforeParserFetchFileAndTitle',
+						array( $this->mParser, $nt, &$options, &$descQuery ) );
+					# Fetch and register the file (file title may be different via hooks)
+					list( $img, $nt ) = $this->mParser->fetchFileAndTitle( $nt, $options );
+				} else {
+					$img = wfFindFile( $nt );
+				}
+			} else {
+				$img = false;
+			}
+
+			$params = $this->getThumbParams( $img );
+			// $pair[4] is per image handler options
+			$transformOptions = $params + $pair[4];
+
+			$thumb = false;
+
+			if ( !$img ) {
+				# We're dealing with a non-image, spit out the name and be done with it.
+				$thumbhtml = "\n\t\t\t" . '<div class="thumb" style="height: ' . ( $this->getThumbPadding() + $this->mHeights ) . 'px;">'
+					. htmlspecialchars( $nt->getText() ) . '</div>';
+
+				if ( $this->mParser instanceof Parser ) {
+					$this->mParser->addTrackingCategory( 'broken-file-category' );
+				}
+			} elseif ( $this->mHideBadImages && wfIsBadImage( $nt->getDBkey(), $this->getContextTitle() ) ) {
+				# The image is blacklisted, just show it as a text link.
+				$thumbhtml = "\n\t\t\t" . '<div class="thumb" style="height: ' . ( $this->getThumbPadding() + $this->mHeights ) . 'px;">' .
+					Linker::link(
+						$nt,
+						htmlspecialchars( $nt->getText() ),
+						array(),
+						array(),
+						array( 'known', 'noclasses' )
+					) .
+					'</div>';
+			} elseif ( !( $thumb = $img->transform( $transformOptions ) ) ) {
+				# Error generating thumbnail.
+				$thumbhtml = "\n\t\t\t" . '<div class="thumb" style="height: ' . ( $this->getThumbPadding() + $this->mHeights ) . 'px;">'
+					. htmlspecialchars( $img->getLastError() ) . '</div>';
+			} else {
+				$vpad = $this->getVPad( $this->mHeights, $thumb->getHeight() );
+
+				$imageParameters = array(
+					'desc-link' => true,
+					'desc-query' => $descQuery,
+					'alt' => $alt,
+					'custom-url-link' => $link
+				);
+				# In the absence of both alt text and caption, fall back on providing screen readers with the filename as alt text
+				if ( $alt == '' && $text == '' ) {
+					$imageParameters['alt'] = $nt->getText();
+				}
+
+				$this->adjustImageParameters( $thumb, $imageParameters );
+
+				# Set both fixed width and min-height.
+				$thumbhtml = "\n\t\t\t" .
+					'<div class="thumb" style="width: ' . $this->getThumbDivWidth( $thumb->getWidth() ) . 'px;">'
+					# Auto-margin centering for block-level elements. Needed now that we have video
+					# handlers since they may emit block-level elements as opposed to simple <img> tags.
+					# ref http://css-discuss.incutio.com/?page=CenteringBlockElement
+					. '<div style="margin:' . $vpad . 'px auto;">'
+					. $thumb->toHtml( $imageParameters ) . '</div></div>';
+
+				// Call parser transform hook
+				if ( $this->mParser && $img->getHandler() ) {
+					$img->getHandler()->parserTransformHook( $this->mParser, $img );
+				}
+			}
+
+			//TODO
+			// $linkTarget = Title::newFromText( $wgContLang->getNsText( MWNamespace::getUser() ) . ":{$ut}" );
+			// $ul = Linker::link( $linkTarget, $ut );
+
+			if ( $this->mShowBytes ) {
+				if ( $img ) {
+					$fileSize = htmlspecialchars( $lang->formatSize( $img->getSize() ) );
+				} else {
+					$fileSize = $this->msg( 'filemissing' )->escaped();
+				}
+				$fileSize = "$fileSize<br />\n";
+			} else {
+				$fileSize = '';
+			}
+
+			$textlink = $this->mShowFilename ?
+				Linker::link(
+					$nt,
+					htmlspecialchars( $lang->truncate( $nt->getText(), $this->mCaptionLength ) ),
+					array(),
+					array(),
+					array( 'known', 'noclasses' )
+				) . "<br />\n" :
+				'';
+
+
+			$galleryText = $textlink . $text . $fileSize;
+			$galleryText = $this->wrapGalleryText( $galleryText, $thumb );
+
+			# Weird double wrapping (the extra div inside the li) needed due to FF2 bug
+			# Can be safely removed if FF2 falls completely out of existence
+			$output .=
+				"\n\t\t" . '<li class="gallerybox" style="width: ' . $this->getGBWidth( $thumb ) . 'px">'
+					. '<div style="width: ' . $this->getGBWidth( $thumb ) . 'px">'
+					. $thumbhtml
+					. $galleryText
+					. "\n\t\t</div></li>";
+		}
+		$output .= "\n</ul>";
+
+		return $output;
+	}
+
+
+	/**
+	 * Add the wrapper html around the thumb's caption
+	 *
+	 * @param String $galleryText The caption
+	 * @param MediaTransformOutput|boolean $thumb The thumb this caption is for or false for bad image.
+	 */
+	protected function wrapGalleryText( $galleryText, $thumb ) {
+		# ATTENTION: The newline after <div class="gallerytext"> is needed to accommodate htmltidy which
+		# in version 4.8.6 generated crackpot html in its absence, see:
+		# http://bugzilla.wikimedia.org/show_bug.cgi?id=1765 -Ævar
+
+		return "\n\t\t\t" . '<div class="gallerytext">' . "\n"
+					. $galleryText
+					. "\n\t\t\t</div>";
+	}
+
+	/**
+	 * How much padding such the thumb have between image and inner div that
+	 * that contains the border. This is both for verical and horizontal
+	 * padding. (However, it is cut in half in the vertical direction).
+	 * @return int
+	 */
+	protected function getThumbPadding() {
+		return 30;
+	}
+
+	/**
+	 *
+	 * @note GB stands for gallerybox (as in the <li class="gallerybox"> element)
+	 *
+	 * @return int
+	 */
+	protected function getGBPadding() {
+		return 5;
+	}
+
+	/**
+	 * Get how much extra space the borders around the image takes up.
+	 *
+	 * For this mode, it is 2px borders on each side + 2px implied padding on
+	 * each side from the stylesheet, giving us 2*2+2*2 = 8.
+	 * @return int
+	 */
+	protected function getGBBorders() {
+		return 8;
+	}
+
+	/**
+	 * Get total padding.
+	 *
+	 * @return int How many pixels of whitespace surround the thumbnail.
+	 */
+	protected function getAllPadding() {
+		return $this->getThumbPadding() + $this->getGBPadding() + $this->getGBBorders();
+	}
+
+	/**
+	 * Get vertical padding for a thumbnail
+	 *
+	 * Generally this is the total height minus how high the thumb is.
+	 *
+	 * @param int $boxHeight How high we want the box to be.
+	 * @param int $thumbHeight How high the thumbnail is.
+	 * @return int How many vertical padding to add on each side.
+	 */
+	protected function getVPad( $boxHeight, $thumbHeight ) {
+		return ( $this->getThumbPadding() + $boxHeight - $thumbHeight ) / 2;
+	}
+
+	/**
+	 * Get the transform parameters for a thumbnail.
+	 *
+	 * @param File $img The file in question. May be false for invalid image
+	 */
+	protected function getThumbParams( $img ) {
+		return array(
+			'width' => $this->mWidths,
+			'height' => $this->mHeights
+		);
+	}
+
+	/**
+	 * Get the width of the inner div that contains the thumbnail in
+	 * question. This is the div with the class of "thumb".
+	 *
+	 * @param int $thumbWidth The width of the thumbnail.
+	 * @return int Width of inner thumb div.
+	 */
+	protected function getThumbDivWidth( $thumbWidth ) {
+		return $this->mWidths + $this->getThumbPadding();
+	}
+
+	/**
+	 * Width of gallerybox <li>.
+	 *
+	 * Generally is the width of the image, plus padding on image
+	 * plus padding on gallerybox.
+	 *
+	 * @note Important: parameter will be false if no thumb used.
+	 * @param Mixed $thumb MediaTransformObject object or false.
+	 * @return int width of gallerybox element
+	 */
+	protected function getGBWidth( $thumb ) {
+		return $this->mWidths + $this->getThumbPadding() + $this->getGBPadding();
+	}
+
+	/**
+	 * Get a list of modules to include in the page.
+	 *
+	 * Primarily intended for subclasses.
+	 *
+	 * @return Array modules to include
+	 */
+	protected function getModules() {
+		return array();
+	}
+
+	/**
+	 * Adjust the image parameters for a thumbnail.
+	 *
+	 * Used by a subclass to insert extra high resolution images.
+	 * @param MediaTransformOutput $thumb The thumbnail
+	 * @param Array $imageParameters Array of options
+	 */
+	protected function adjustImageParameters( $thumb, &$imageParameters ) { }
+}
+
+/**
+ * Backwards compatibility. This always uses traditional mode
+ * if called the old way, for extensions that may expect traditional
+ * mode.
+ *
+ * @deprecated 1.22 Use ImageGalleryBase::factory instead.
+ */
+class ImageGallery extends TraditionalImageGallery {
+	function __construct( $mode = 'traditional' ) {
+		wfDeprecated( __METHOD__, '1.22' );
+		parent::__construct( $mode );
+	}
+}