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ImagePage.php
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ImagePage.php
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<?php
/**
* Special handling for file description pages.
*
* 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 for viewing MediaWiki file description pages
*
* @ingroup Media
*/
class ImagePage extends Article {
/**
* @var File
*/
private $displayImg;
/**
* @var FileRepo
*/
private $repo;
private $fileLoaded;
var $mExtraDescription = false;
/**
* @param Title $title
* @return WikiFilePage
*/
protected function newPage( Title $title ) {
// Overload mPage with a file-specific page
return new WikiFilePage( $title );
}
/**
* Constructor from a page id
* @param int $id Article ID to load
* @return ImagePage|null
*/
public static function newFromID( $id ) {
$t = Title::newFromID( $id );
# @todo FIXME: Doesn't inherit right
return $t == null ? null : new self( $t );
# return $t == null ? null : new static( $t ); // PHP 5.3
}
/**
* @param File $file
* @return void
*/
public function setFile( $file ) {
$this->mPage->setFile( $file );
$this->displayImg = $file;
$this->fileLoaded = true;
}
protected function loadFile() {
if ( $this->fileLoaded ) {
return;
}
$this->fileLoaded = true;
$this->displayImg = $img = false;
wfRunHooks( 'ImagePageFindFile', array( $this, &$img, &$this->displayImg ) );
if ( !$img ) { // not set by hook?
$img = wfFindFile( $this->getTitle() );
if ( !$img ) {
$img = wfLocalFile( $this->getTitle() );
}
}
$this->mPage->setFile( $img );
if ( !$this->displayImg ) { // not set by hook?
$this->displayImg = $img;
}
$this->repo = $img->getRepo();
}
/**
* Handler for action=render
* Include body text only; none of the image extras
*/
public function render() {
$this->getContext()->getOutput()->setArticleBodyOnly( true );
parent::view();
}
public function view() {
global $wgShowEXIF;
$out = $this->getContext()->getOutput();
$request = $this->getContext()->getRequest();
$diff = $request->getVal( 'diff' );
$diffOnly = $request->getBool( 'diffonly', $this->getContext()->getUser()->getOption( 'diffonly' ) );
if ( $this->getTitle()->getNamespace() != NS_FILE || ( $diff !== null && $diffOnly ) ) {
parent::view();
return;
}
$this->loadFile();
if ( $this->getTitle()->getNamespace() == NS_FILE && $this->mPage->getFile()->getRedirected() ) {
if ( $this->getTitle()->getDBkey() == $this->mPage->getFile()->getName() || $diff !== null ) {
// mTitle is the same as the redirect target so ask Article
// to perform the redirect for us.
$request->setVal( 'diffonly', 'true' );
parent::view();
return;
} else {
// mTitle is not the same as the redirect target so it is
// probably the redirect page itself. Fake the redirect symbol
$out->setPageTitle( $this->getTitle()->getPrefixedText() );
$out->addHTML( $this->viewRedirect( Title::makeTitle( NS_FILE, $this->mPage->getFile()->getName() ),
/* $appendSubtitle */ true, /* $forceKnown */ true ) );
$this->mPage->doViewUpdates( $this->getContext()->getUser(), $this->getOldID() );
return;
}
}
if ( $wgShowEXIF && $this->displayImg->exists() ) {
// @todo FIXME: Bad interface, see note on MediaHandler::formatMetadata().
$formattedMetadata = $this->displayImg->formatMetadata();
$showmeta = $formattedMetadata !== false;
} else {
$showmeta = false;
}
if ( !$diff && $this->displayImg->exists() ) {
$out->addHTML( $this->showTOC( $showmeta ) );
}
if ( !$diff ) {
$this->openShowImage();
}
# No need to display noarticletext, we use our own message, output in openShowImage()
if ( $this->mPage->getID() ) {
# NS_FILE is in the user language, but this section (the actual wikitext)
# should be in page content language
$pageLang = $this->getTitle()->getPageViewLanguage();
$out->addHTML( Xml::openElement( 'div', array( 'id' => 'mw-imagepage-content',
'lang' => $pageLang->getHtmlCode(), 'dir' => $pageLang->getDir(),
'class' => 'mw-content-' . $pageLang->getDir() ) ) );
parent::view();
$out->addHTML( Xml::closeElement( 'div' ) );
} else {
# Just need to set the right headers
$out->setArticleFlag( true );
$out->setPageTitle( $this->getTitle()->getPrefixedText() );
$this->mPage->doViewUpdates( $this->getContext()->getUser(), $this->getOldID() );
}
# Show shared description, if needed
if ( $this->mExtraDescription ) {
$fol = wfMessage( 'shareddescriptionfollows' );
if ( !$fol->isDisabled() ) {
$out->addWikiText( $fol->plain() );
}
$out->addHTML( '<div id="shared-image-desc">' . $this->mExtraDescription . "</div>\n" );
}
$this->closeShowImage();
$this->imageHistory();
// TODO: Cleanup the following
$out->addHTML( Xml::element( 'h2',
array( 'id' => 'filelinks' ),
wfMessage( 'imagelinks' )->text() ) . "\n" );
$this->imageDupes();
# @todo FIXME: For some freaky reason, we can't redirect to foreign images.
# Yet we return metadata about the target. Definitely an issue in the FileRepo
$this->imageLinks();
# Allow extensions to add something after the image links
$html = '';
wfRunHooks( 'ImagePageAfterImageLinks', array( $this, &$html ) );
if ( $html ) {
$out->addHTML( $html );
}
if ( $showmeta ) {
$out->addHTML( Xml::element(
'h2',
array( 'id' => 'metadata' ),
wfMessage( 'metadata' )->text() ) . "\n" );
$out->addWikiText( $this->makeMetadataTable( $formattedMetadata ) );
$out->addModules( array( 'mediawiki.action.view.metadata' ) );
}
// Add remote Filepage.css
if ( !$this->repo->isLocal() ) {
$css = $this->repo->getDescriptionStylesheetUrl();
if ( $css ) {
$out->addStyle( $css );
}
}
// always show the local local Filepage.css, bug 29277
$out->addModuleStyles( 'filepage' );
}
/**
* @return File
*/
public function getDisplayedFile() {
$this->loadFile();
return $this->displayImg;
}
/**
* Create the TOC
*
* @param bool $metadata Whether or not to show the metadata link
* @return string
*/
protected function showTOC( $metadata ) {
$r = array(
'<li><a href="#file">' . wfMessage( 'file-anchor-link' )->escaped() . '</a></li>',
'<li><a href="#filehistory">' . wfMessage( 'filehist' )->escaped() . '</a></li>',
'<li><a href="#filelinks">' . wfMessage( 'imagelinks' )->escaped() . '</a></li>',
);
if ( $metadata ) {
$r[] = '<li><a href="#metadata">' . wfMessage( 'metadata' )->escaped() . '</a></li>';
}
wfRunHooks( 'ImagePageShowTOC', array( $this, &$r ) );
return '<ul id="filetoc">' . implode( "\n", $r ) . '</ul>';
}
/**
* Make a table with metadata to be shown in the output page.
*
* @todo FIXME: Bad interface, see note on MediaHandler::formatMetadata().
*
* @param array $metadata The array containing the Exif data
* @return string The metadata table. This is treated as Wikitext (!)
*/
protected function makeMetadataTable( $metadata ) {
$r = "<div class=\"mw-imagepage-section-metadata\">";
$r .= wfMessage( 'metadata-help' )->plain();
$r .= "<table id=\"mw_metadata\" class=\"mw_metadata\">\n";
foreach ( $metadata as $type => $stuff ) {
foreach ( $stuff as $v ) {
# @todo FIXME: Why is this using escapeId for a class?!
$class = Sanitizer::escapeId( $v['id'] );
if ( $type == 'collapsed' ) {
// Handled by mediawiki.action.view.metadata module
// and skins/common/shared.css.
$class .= ' collapsable';
}
$r .= "<tr class=\"$class\">\n";
$r .= "<th>{$v['name']}</th>\n";
$r .= "<td>{$v['value']}</td>\n</tr>";
}
}
$r .= "</table>\n</div>\n";
return $r;
}
/**
* Overloading Article's getContentObject method.
*
* Omit noarticletext if sharedupload; text will be fetched from the
* shared upload server if possible.
* @return string
*/
public function getContentObject() {
$this->loadFile();
if ( $this->mPage->getFile() && !$this->mPage->getFile()->isLocal() && 0 == $this->getID() ) {
return null;
}
return parent::getContentObject();
}
protected function openShowImage() {
global $wgImageLimits, $wgEnableUploads, $wgSend404Code;
$this->loadFile();
$out = $this->getContext()->getOutput();
$user = $this->getContext()->getUser();
$lang = $this->getContext()->getLanguage();
$dirmark = $lang->getDirMarkEntity();
$request = $this->getContext()->getRequest();
$max = $this->getImageLimitsFromOption( $user, 'imagesize' );
$maxWidth = $max[0];
$maxHeight = $max[1];
if ( $this->displayImg->exists() ) {
# image
$page = $request->getIntOrNull( 'page' );
if ( is_null( $page ) ) {
$params = array();
$page = 1;
} else {
$params = array( 'page' => $page );
}
$renderLang = $request->getVal( 'lang' );
if ( !is_null( $renderLang ) ) {
$handler = $this->displayImg->getHandler();
if ( $handler && $handler->validateParam( 'lang', $renderLang ) ) {
$params['lang'] = $renderLang;
} else {
$renderLang = null;
}
}
$width_orig = $this->displayImg->getWidth( $page );
$width = $width_orig;
$height_orig = $this->displayImg->getHeight( $page );
$height = $height_orig;
$filename = wfEscapeWikiText( $this->displayImg->getName() );
$linktext = $filename;
wfRunHooks( 'ImageOpenShowImageInlineBefore', array( &$this, &$out ) );
if ( $this->displayImg->allowInlineDisplay() ) {
# image
# "Download high res version" link below the image
# $msgsize = wfMessage( 'file-info-size', $width_orig, $height_orig, Linker::formatSize( $this->displayImg->getSize() ), $mime )->escaped();
# We'll show a thumbnail of this image
if ( $width > $maxWidth || $height > $maxHeight ) {
# Calculate the thumbnail size.
# First case, the limiting factor is the width, not the height.
if ( $width / $height >= $maxWidth / $maxHeight ) { // FIXME: Possible division by 0. bug 36911
$height = round( $height * $maxWidth / $width ); // FIXME: Possible division by 0. bug 36911
$width = $maxWidth;
# Note that $height <= $maxHeight now.
} else {
$newwidth = floor( $width * $maxHeight / $height ); // FIXME: Possible division by 0. bug 36911
$height = round( $height * $newwidth / $width ); // FIXME: Possible division by 0. bug 36911
$width = $newwidth;
# Note that $height <= $maxHeight now, but might not be identical
# because of rounding.
}
$linktext = wfMessage( 'show-big-image' )->escaped();
if ( $this->displayImg->getRepo()->canTransformVia404() ) {
$thumbSizes = $wgImageLimits;
// Also include the full sized resolution in the list, so
// that users know they can get it. This will link to the
// original file asset if mustRender() === false. In the case
// that we mustRender, some users have indicated that they would
// find it useful to have the full size image in the rendered
// image format.
$thumbSizes[] = array( $width_orig, $height_orig );
} else {
# Creating thumb links triggers thumbnail generation.
# Just generate the thumb for the current users prefs.
$thumbSizes = array( $this->getImageLimitsFromOption( $user, 'thumbsize' ) );
if ( !$this->displayImg->mustRender() ) {
// We can safely include a link to the "full-size" preview,
// without actually rendering.
$thumbSizes[] = array( $width_orig, $height_orig );
}
}
# Generate thumbnails or thumbnail links as needed...
$otherSizes = array();
foreach ( $thumbSizes as $size ) {
// We include a thumbnail size in the list, if it is
// less than or equal to the original size of the image
// asset ($width_orig/$height_orig). We also exclude
// the current thumbnail's size ($width/$height)
// since that is added to the message separately, so
// it can be denoted as the current size being shown.
if ( $size[0] <= $width_orig && $size[1] <= $height_orig
&& $size[0] != $width && $size[1] != $height
) {
$sizeLink = $this->makeSizeLink( $params, $size[0], $size[1] );
if ( $sizeLink ) {
$otherSizes[] = $sizeLink;
}
}
}
$otherSizes = array_unique( $otherSizes );
$msgsmall = '';
$sizeLinkBigImagePreview = $this->makeSizeLink( $params, $width, $height );
if ( $sizeLinkBigImagePreview ) {
$msgsmall .= wfMessage( 'show-big-image-preview' )->
rawParams( $sizeLinkBigImagePreview )->
parse();
}
if ( count( $otherSizes ) ) {
$msgsmall .= ' ' .
Html::rawElement( 'span', array( 'class' => 'mw-filepage-other-resolutions' ),
wfMessage( 'show-big-image-other' )->rawParams( $lang->pipeList( $otherSizes ) )->
params( count( $otherSizes ) )->parse()
);
}
} elseif ( $width == 0 && $height == 0 ) {
# Some sort of audio file that doesn't have dimensions
# Don't output a no hi res message for such a file
$msgsmall = '';
} elseif ( $this->displayImg->isVectorized() ) {
# For vectorized images, full size is just the frame size
$msgsmall = '';
} else {
# Image is small enough to show full size on image page
$msgsmall = wfMessage( 'file-nohires' )->parse();
}
$params['width'] = $width;
$params['height'] = $height;
$thumbnail = $this->displayImg->transform( $params );
Linker::processResponsiveImages( $this->displayImg, $thumbnail, $params );
$anchorclose = Html::rawElement( 'div', array( 'class' => 'mw-filepage-resolutioninfo' ), $msgsmall );
$isMulti = $this->displayImg->isMultipage() && $this->displayImg->pageCount() > 1;
if ( $isMulti ) {
$out->addModules( 'mediawiki.page.image.pagination' );
$out->addHTML( '<table class="multipageimage"><tr><td>' );
}
if ( $thumbnail ) {
$options = array(
'alt' => $this->displayImg->getTitle()->getPrefixedText(),
'file-link' => true,
);
$out->addHTML( '<div class="fullImageLink" id="file">' .
$thumbnail->toHtml( $options ) .
$anchorclose . "</div>\n" );
}
if ( $isMulti ) {
$count = $this->displayImg->pageCount();
if ( $page > 1 ) {
$label = $out->parse( wfMessage( 'imgmultipageprev' )->text(), false );
$link = Linker::linkKnown(
$this->getTitle(),
$label,
array(),
array( 'page' => $page - 1 )
);
$thumb1 = Linker::makeThumbLinkObj( $this->getTitle(), $this->displayImg, $link, $label, 'none',
array( 'page' => $page - 1 ) );
} else {
$thumb1 = '';
}
if ( $page < $count ) {
$label = wfMessage( 'imgmultipagenext' )->text();
$link = Linker::linkKnown(
$this->getTitle(),
$label,
array(),
array( 'page' => $page + 1 )
);
$thumb2 = Linker::makeThumbLinkObj( $this->getTitle(), $this->displayImg, $link, $label, 'none',
array( 'page' => $page + 1 ) );
} else {
$thumb2 = '';
}
global $wgScript;
$formParams = array(
'name' => 'pageselector',
'action' => $wgScript,
);
$options = array();
for ( $i = 1; $i <= $count; $i++ ) {
$options[] = Xml::option( $lang->formatNum( $i ), $i, $i == $page );
}
$select = Xml::tags( 'select',
array( 'id' => 'pageselector', 'name' => 'page' ),
implode( "\n", $options ) );
$out->addHTML(
'</td><td><div class="multipageimagenavbox">' .
Xml::openElement( 'form', $formParams ) .
Html::hidden( 'title', $this->getTitle()->getPrefixedDBkey() ) .
wfMessage( 'imgmultigoto' )->rawParams( $select )->parse() .
Xml::submitButton( wfMessage( 'imgmultigo' )->text() ) .
Xml::closeElement( 'form' ) .
"<hr />$thumb1\n$thumb2<br style=\"clear: both\" /></div></td></tr></table>"
);
}
} elseif ( $this->displayImg->isSafeFile() ) {
# if direct link is allowed but it's not a renderable image, show an icon.
$icon = $this->displayImg->iconThumb();
$out->addHTML( '<div class="fullImageLink" id="file">' .
$icon->toHtml( array( 'file-link' => true ) ) .
"</div>\n" );
}
$longDesc = wfMessage( 'parentheses', $this->displayImg->getLongDesc() )->text();
$medialink = "[[Media:$filename|$linktext]]";
if ( !$this->displayImg->isSafeFile() ) {
$warning = wfMessage( 'mediawarning' )->plain();
// dirmark is needed here to separate the file name, which
// most likely ends in Latin characters, from the description,
// which may begin with the file type. In RTL environment
// this will get messy.
// The dirmark, however, must not be immediately adjacent
// to the filename, because it can get copied with it.
// See bug 25277.
$out->addWikiText( <<<EOT
<div class="fullMedia"><span class="dangerousLink">{$medialink}</span> $dirmark<span class="fileInfo">$longDesc</span></div>
<div class="mediaWarning">$warning</div>
EOT
);
} else {
$out->addWikiText( <<<EOT
<div class="fullMedia">{$medialink} {$dirmark}<span class="fileInfo">$longDesc</span>
</div>
EOT
);
}
$renderLangOptions = $this->displayImg->getAvailableLanguages();
if ( count( $renderLangOptions ) >= 1 ) {
$currentLanguage = $renderLang;
$defaultLang = $this->displayImg->getDefaultRenderLanguage();
if ( is_null( $currentLanguage ) ) {
$currentLanguage = $defaultLang;
}
$out->addHtml( $this->doRenderLangOpt( $renderLangOptions, $currentLanguage, $defaultLang ) );
}
// Add cannot animate thumbnail warning
if ( !$this->displayImg->canAnimateThumbIfAppropriate() ) {
// Include the extension so wiki admins can
// customize it on a per file-type basis
// (aka say things like use format X instead).
// additionally have a specific message for
// file-no-thumb-animation-gif
$ext = $this->displayImg->getExtension();
$noAnimMesg = wfMessageFallback(
'file-no-thumb-animation-' . $ext,
'file-no-thumb-animation'
)->plain();
$out->addWikiText( <<<EOT
<div class="mw-noanimatethumb">{$noAnimMesg}</div>
EOT
);
}
if ( !$this->displayImg->isLocal() ) {
$this->printSharedImageText();
}
} else {
# Image does not exist
if ( !$this->getID() ) {
# No article exists either
# Show deletion log to be consistent with normal articles
LogEventsList::showLogExtract(
$out,
array( 'delete', 'move' ),
$this->getTitle()->getPrefixedText(),
'',
array( 'lim' => 10,
'conds' => array( "log_action != 'revision'" ),
'showIfEmpty' => false,
'msgKey' => array( 'moveddeleted-notice' )
)
);
}
if ( $wgEnableUploads && $user->isAllowed( 'upload' ) ) {
// Only show an upload link if the user can upload
$uploadTitle = SpecialPage::getTitleFor( 'Upload' );
$nofile = array(
'filepage-nofile-link',
$uploadTitle->getFullURL( array( 'wpDestFile' => $this->mPage->getFile()->getName() ) )
);
} else {
$nofile = 'filepage-nofile';
}
// Note, if there is an image description page, but
// no image, then this setRobotPolicy is overridden
// by Article::View().
$out->setRobotPolicy( 'noindex,nofollow' );
$out->wrapWikiMsg( "<div id='mw-imagepage-nofile' class='plainlinks'>\n$1\n</div>", $nofile );
if ( !$this->getID() && $wgSend404Code ) {
// If there is no image, no shared image, and no description page,
// output a 404, to be consistent with articles.
$request->response()->header( 'HTTP/1.1 404 Not Found' );
}
}
$out->setFileVersion( $this->displayImg );
}
/**
* Creates an thumbnail of specified size and returns an HTML link to it
* @param array $params Scaler parameters
* @param int $width
* @param int $height
* @return string
*/
private function makeSizeLink( $params, $width, $height ) {
$params['width'] = $width;
$params['height'] = $height;
$thumbnail = $this->displayImg->transform( $params );
if ( $thumbnail && !$thumbnail->isError() ) {
return Html::rawElement( 'a', array(
'href' => $thumbnail->getUrl(),
'class' => 'mw-thumbnail-link'
), wfMessage( 'show-big-image-size' )->numParams(
$thumbnail->getWidth(), $thumbnail->getHeight()
)->parse() );
} else {
return '';
}
}
/**
* Show a notice that the file is from a shared repository
*/
protected function printSharedImageText() {
$out = $this->getContext()->getOutput();
$this->loadFile();
$descUrl = $this->mPage->getFile()->getDescriptionUrl();
$descText = $this->mPage->getFile()->getDescriptionText( $this->getContext()->getLanguage() );
/* Add canonical to head if there is no local page for this shared file */
if ( $descUrl && $this->mPage->getID() == 0 ) {
$out->setCanonicalUrl( $descUrl );
}
$wrap = "<div class=\"sharedUploadNotice\">\n$1\n</div>\n";
$repo = $this->mPage->getFile()->getRepo()->getDisplayName();
if ( $descUrl && $descText && wfMessage( 'sharedupload-desc-here' )->plain() !== '-' ) {
$out->wrapWikiMsg( $wrap, array( 'sharedupload-desc-here', $repo, $descUrl ) );
} elseif ( $descUrl && wfMessage( 'sharedupload-desc-there' )->plain() !== '-' ) {
$out->wrapWikiMsg( $wrap, array( 'sharedupload-desc-there', $repo, $descUrl ) );
} else {
$out->wrapWikiMsg( $wrap, array( 'sharedupload', $repo ), ''/*BACKCOMPAT*/ );
}
if ( $descText ) {
$this->mExtraDescription = $descText;
}
}
public function getUploadUrl() {
$this->loadFile();
$uploadTitle = SpecialPage::getTitleFor( 'Upload' );
return $uploadTitle->getFullURL( array(
'wpDestFile' => $this->mPage->getFile()->getName(),
'wpForReUpload' => 1
) );
}
/**
* Print out the various links at the bottom of the image page, e.g. reupload,
* external editing (and instructions link) etc.
*/
protected function uploadLinksBox() {
global $wgEnableUploads;
if ( !$wgEnableUploads ) {
return;
}
$this->loadFile();
if ( !$this->mPage->getFile()->isLocal() ) {
return;
}
$out = $this->getContext()->getOutput();
$out->addHTML( "<ul>\n" );
# "Upload a new version of this file" link
$canUpload = $this->getTitle()->userCan( 'upload', $this->getContext()->getUser() );
if ( $canUpload && UploadBase::userCanReUpload( $this->getContext()->getUser(), $this->mPage->getFile()->name ) ) {
$ulink = Linker::makeExternalLink( $this->getUploadUrl(), wfMessage( 'uploadnewversion-linktext' )->text() );
$out->addHTML( "<li id=\"mw-imagepage-reupload-link\"><div class=\"plainlinks\">{$ulink}</div></li>\n" );
} else {
$out->addHTML( "<li id=\"mw-imagepage-upload-disallowed\">" . $this->getContext()->msg( 'upload-disallowed-here' )->escaped() . "</li>\n" );
}
$out->addHTML( "</ul>\n" );
}
protected function closeShowImage() { } # For overloading
/**
* If the page we've just displayed is in the "Image" namespace,
* we follow it with an upload history of the image and its usage.
*/
protected function imageHistory() {
$this->loadFile();
$out = $this->getContext()->getOutput();
$pager = new ImageHistoryPseudoPager( $this );
$out->addHTML( $pager->getBody() );
$out->preventClickjacking( $pager->getPreventClickjacking() );
$this->mPage->getFile()->resetHistory(); // free db resources
# Exist check because we don't want to show this on pages where an image
# doesn't exist along with the noimage message, that would suck. -ævar
if ( $this->mPage->getFile()->exists() ) {
$this->uploadLinksBox();
}
}
/**
* @param string $target
* @param int $limit
* @return ResultWrapper
*/
protected function queryImageLinks( $target, $limit ) {
$dbr = wfGetDB( DB_SLAVE );
return $dbr->select(
array( 'imagelinks', 'page' ),
array( 'page_namespace', 'page_title', 'il_to' ),
array( 'il_to' => $target, 'il_from = page_id' ),
__METHOD__,
array( 'LIMIT' => $limit + 1, 'ORDER BY' => 'il_from', )
);
}
protected function imageLinks() {
$limit = 100;
$out = $this->getContext()->getOutput();
$rows = array();
$redirects = array();
foreach ( $this->getTitle()->getRedirectsHere( NS_FILE ) as $redir ) {
$redirects[$redir->getDBkey()] = array();
$rows[] = (object)array(
'page_namespace' => NS_FILE,
'page_title' => $redir->getDBkey(),
);
}
$res = $this->queryImageLinks( $this->getTitle()->getDBkey(), $limit + 1 );
foreach ( $res as $row ) {
$rows[] = $row;
}
$count = count( $rows );
$hasMore = $count > $limit;
if ( !$hasMore && count( $redirects ) ) {
$res = $this->queryImageLinks( array_keys( $redirects ),
$limit - count( $rows ) + 1 );
foreach ( $res as $row ) {
$redirects[$row->il_to][] = $row;
$count++;
}
$hasMore = ( $res->numRows() + count( $rows ) ) > $limit;
}
if ( $count == 0 ) {
$out->wrapWikiMsg(
Html::rawElement( 'div',
array( 'id' => 'mw-imagepage-nolinkstoimage' ), "\n$1\n" ),
'nolinkstoimage'
);
return;
}
$out->addHTML( "<div id='mw-imagepage-section-linkstoimage'>\n" );
if ( !$hasMore ) {
$out->addWikiMsg( 'linkstoimage', $count );
} else {
// More links than the limit. Add a link to [[Special:Whatlinkshere]]
$out->addWikiMsg( 'linkstoimage-more',
$this->getContext()->getLanguage()->formatNum( $limit ),
$this->getTitle()->getPrefixedDBkey()
);
}
$out->addHTML(
Html::openElement( 'ul',
array( 'class' => 'mw-imagepage-linkstoimage' ) ) . "\n"
);
$count = 0;
// Sort the list by namespace:title
usort( $rows, array( $this, 'compare' ) );
// Create links for every element
$currentCount = 0;
foreach ( $rows as $element ) {
$currentCount++;
if ( $currentCount > $limit ) {
break;
}
$query = array();
# Add a redirect=no to make redirect pages reachable
if ( isset( $redirects[$element->page_title] ) ) {
$query['redirect'] = 'no';
}
$link = Linker::linkKnown(
Title::makeTitle( $element->page_namespace, $element->page_title ),
null, array(), $query
);
if ( !isset( $redirects[$element->page_title] ) ) {
# No redirects
$liContents = $link;
} elseif ( count( $redirects[$element->page_title] ) === 0 ) {
# Redirect without usages
$liContents = wfMessage( 'linkstoimage-redirect' )->rawParams( $link, '' )->parse();
} else {
# Redirect with usages
$li = '';
foreach ( $redirects[$element->page_title] as $row ) {
$currentCount++;
if ( $currentCount > $limit ) {
break;
}
$link2 = Linker::linkKnown( Title::makeTitle( $row->page_namespace, $row->page_title ) );
$li .= Html::rawElement(
'li',
array( 'class' => 'mw-imagepage-linkstoimage-ns' . $element->page_namespace ),
$link2
) . "\n";
}
$ul = Html::rawElement(
'ul',
array( 'class' => 'mw-imagepage-redirectstofile' ),
$li
) . "\n";
$liContents = wfMessage( 'linkstoimage-redirect' )->rawParams(
$link, $ul )->parse();
}
$out->addHTML( Html::rawElement(
'li',
array( 'class' => 'mw-imagepage-linkstoimage-ns' . $element->page_namespace ),
$liContents
) . "\n"
);
};
$out->addHTML( Html::closeElement( 'ul' ) . "\n" );
$res->free();
// Add a links to [[Special:Whatlinkshere]]
if ( $count > $limit ) {
$out->addWikiMsg( 'morelinkstoimage', $this->getTitle()->getPrefixedDBkey() );
}
$out->addHTML( Html::closeElement( 'div' ) . "\n" );
}
protected function imageDupes() {
$this->loadFile();
$out = $this->getContext()->getOutput();
$dupes = $this->mPage->getDuplicates();
if ( count( $dupes ) == 0 ) {
return;
}
$out->addHTML( "<div id='mw-imagepage-section-duplicates'>\n" );
$out->addWikiMsg( 'duplicatesoffile',
$this->getContext()->getLanguage()->formatNum( count( $dupes ) ), $this->getTitle()->getDBkey()
);
$out->addHTML( "<ul class='mw-imagepage-duplicates'>\n" );
/**
* @var $file File
*/
foreach ( $dupes as $file ) {
$fromSrc = '';
if ( $file->isLocal() ) {
$link = Linker::linkKnown( $file->getTitle() );
} else {
$link = Linker::makeExternalLink( $file->getDescriptionUrl(),
$file->getTitle()->getPrefixedText() );
$fromSrc = wfMessage( 'shared-repo-from', $file->getRepo()->getDisplayName() )->text();
}
$out->addHTML( "<li>{$link} {$fromSrc}</li>\n" );
}
$out->addHTML( "</ul></div>\n" );
}
/**
* Delete the file, or an earlier version of it
*/
public function delete() {
$file = $this->mPage->getFile();
if ( !$file->exists() || !$file->isLocal() || $file->getRedirected() ) {
// Standard article deletion
parent::delete();
return;
}
$deleter = new FileDeleteForm( $file );
$deleter->execute();
}
/**
* Display an error with a wikitext description
*
* @param string $description
*/
function showError( $description ) {
$out = $this->getContext()->getOutput();
$out->setPageTitle( wfMessage( 'internalerror' ) );
$out->setRobotPolicy( 'noindex,nofollow' );
$out->setArticleRelated( false );
$out->enableClientCache( false );
$out->addWikiText( $description );
}
/**
* Callback for usort() to do link sorts by (namespace, title)
* Function copied from Title::compare()
*
* @param object $a Object page to compare with
* @param object $b Object page to compare with
* @return int Result of string comparison, or namespace comparison
*/
protected function compare( $a, $b ) {
if ( $a->page_namespace == $b->page_namespace ) {
return strcmp( $a->page_title, $b->page_title );
} else {
return $a->page_namespace - $b->page_namespace;
}
}
/**
* Returns the corresponding $wgImageLimits entry for the selected user option
*
* @param User $user
* @param string $optionName Name of a option to check, typically imagesize or thumbsize
* @return array
* @since 1.21
*/
public function getImageLimitsFromOption( $user, $optionName ) {
global $wgImageLimits;
$option = $user->getIntOption( $optionName );
if ( !isset( $wgImageLimits[$option] ) ) {
$option = User::getDefaultOption( $optionName );
}
// The user offset might still be incorrect, specially if
// $wgImageLimits got changed (see bug #8858).
if ( !isset( $wgImageLimits[$option] ) ) {
// Default to the first offset in $wgImageLimits
$option = 0;
}
return isset( $wgImageLimits[$option] )
? $wgImageLimits[$option]
: array( 800, 600 ); // if nothing is set, fallback to a hardcoded default
}
/**
* Output a drop-down box for language options for the file
*
* @param array $langChoices Array of string language codes
* @param string $curLang Language code file is being viewed in.
* @param string $defaultLang Language code that image is rendered in by default
* @return string HTML to insert underneath image.
*/
protected function doRenderLangOpt( array $langChoices, $curLang, $defaultLang ) {
global $wgScript;
sort( $langChoices );
$curLang = wfBCP47( $curLang );
$defaultLang = wfBCP47( $defaultLang );
$opts = '';
$haveCurrentLang = false;
$haveDefaultLang = false;
// We make a list of all the language choices in the file.
// Additionally if the default language to render this file
// is not included as being in this file (for example, in svgs
// usually the fallback content is the english content) also
// include a choice for that. Last of all, if we're viewing
// the file in a language not on the list, add it as a choice.
foreach ( $langChoices as $lang ) {
$code = wfBCP47( $lang );
$name = Language::fetchLanguageName( $code, $this->getContext()->getLanguage()->getCode() );
if ( $name !== '' ) {