\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 = $this->getContext()->msg( '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 = $this->getContext()->msg( '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( "
\n" );
$out->addWikiMsg( 'duplicatesoffile',
$this->getContext()->getLanguage()->formatNum( count( $dupes ) ), $this->getTitle()->getDBkey()
);
$out->addHTML( "
\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 = $this->getContext()->msg( 'shared-repo-from', $file->getRepo()->getDisplayName() )->text();
}
$out->addHTML( "- {$link} {$fromSrc}
\n" );
}
$out->addHTML( "
\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( $this->getContext()->msg( '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 !== '' ) {
$display = $this->getContext()->msg( 'img-lang-opt', $code, $name )->text();
} else {
$display = $code;
}
$opts .= "\n" . Xml::option( $display, $code, $curLang === $code );
if ( $curLang === $code ) {
$haveCurrentLang = true;
}
if ( $defaultLang === $code ) {
$haveDefaultLang = true;
}
}
if ( !$haveDefaultLang ) {
// Its hard to know if the content is really in the default language, or
// if its just unmarked content that could be in any language.
$opts = Xml::option(
$this->getContext()->msg( 'img-lang-default' )->text(),
$defaultLang,
$defaultLang === $curLang
) . $opts;
}
if ( !$haveCurrentLang && $defaultLang !== $curLang ) {
$name = Language::fetchLanguageName( $curLang, $this->getContext()->getLanguage()->getCode() );
if ( $name !== '' ) {
$display = $this->getContext()->msg( 'img-lang-opt', $curLang, $name )->text();
} else {
$display = $curLang;
}
$opts = Xml::option( $display, $curLang, true ) . $opts;
}
$select = Html::rawElement(
'select',
array( 'id' => 'mw-imglangselector', 'name' => 'lang' ),
$opts
);
$submit = Xml::submitButton( $this->getContext()->msg( 'img-lang-go' )->text() );
$formContents = $this->getContext()->msg( 'img-lang-info' )->rawParams( $select, $submit )->parse()
. Html::hidden( 'title', $this->getTitle()->getPrefixedDBkey() );
$langSelectLine = Html::rawElement( 'div', array( 'id' => 'mw-imglangselector-line' ),
Html::rawElement( 'form', array( 'action' => $wgScript ), $formContents )
);
return $langSelectLine;
}
/**
* Get the width and height to display image at.
*
* @note This method assumes that it is only called if one
* of the dimensions are bigger than the max, or if the
* image is vectorized.
*
* @param int $maxWidth Max width to display at
* @param int $maxHeight Max height to display at
* @param int $width Actual width of the image
* @param int $height Actual height of the image
* @throws MWException
* @return array Array (width, height)
*/
protected function getDisplayWidthHeight( $maxWidth, $maxHeight, $width, $height ) {
if ( !$maxWidth || !$maxHeight ) {
// should never happen
throw new MWException( 'Using a choice from $wgImageLimits that is 0x0' );
}
if ( !$width || !$height ) {
return array( 0, 0 );
}
# Calculate the thumbnail size.
if ( $width <= $maxWidth && $height <= $maxHeight ) {
// Vectorized image, do nothing.
} elseif ( $width / $height >= $maxWidth / $maxHeight ) {
# The limiting factor is the width, not the height.
$height = round( $height * $maxWidth / $width );
$width = $maxWidth;
# Note that $height <= $maxHeight now.
} else {
$newwidth = floor( $width * $maxHeight / $height );
$height = round( $height * $newwidth / $width );
$width = $newwidth;
# Note that $height <= $maxHeight now, but might not be identical
# because of rounding.
}
return array( $width, $height );
}
/**
* Get alternative thumbnail sizes.
*
* @note This will only list several alternatives if thumbnails are rendered on 404
* @param int $origWidth Actual width of image
* @param int $origHeight Actual height of image
* @return array An array of [width, height] pairs.
*/
protected function getThumbSizes( $origWidth, $origHeight ) {
global $wgImageLimits;
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( $origWidth, $origHeight );
} else {
# Creating thumb links triggers thumbnail generation.
# Just generate the thumb for the current users prefs.
$thumbSizes = array( $this->getImageLimitsFromOption( $this->getContext()->getUser(), 'thumbsize' ) );
if ( !$this->displayImg->mustRender() ) {
// We can safely include a link to the "full-size" preview,
// without actually rendering.
$thumbSizes[] = array( $origWidth, $origHeight );
}
}
return $thumbSizes;
}
}
/**
* 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"
. "
\n"
. $this->msg( 'filehist-help' )->parseAsBlock()
. $navLinks . "\n"
. Xml::openElement( 'table', array( 'class' => 'wikitable filehistory' ) ) . "\n"
. '
| '
. ( $this->current->isLocal()
&& ( $this->getUser()->isAllowedAny( 'delete', 'deletedhistory' ) ) ? ' | ' : '' )
. '' . $this->msg( 'filehist-datetime' )->escaped() . ' | '
. ( $this->showThumb ? '' . $this->msg( 'filehist-thumb' )->escaped() . ' | ' : '' )
. '' . $this->msg( 'filehist-dimensions' )->escaped() . ' | '
. '' . $this->msg( 'filehist-user' )->escaped() . ' | '
. '' . $this->msg( 'filehist-comment' )->escaped() . ' | '
. "
|---|
\n";
}
/**
* @param string $navLinks
* @return string
*/
public function endImageHistoryList( $navLinks = '' ) {
return "\n$navLinks\n\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 .= '
';
# 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 .= '
';
}
// 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 .= ' | ';
}
// Reversion link/current indicator
$row .= '
';
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 .= ' | ';
// Date/time and image link
if ( $file->getTimestamp() === $this->img->getTimestamp() ) {
$selected = "class='filehistory-selected'";
}
$row .= "
";
if ( !$file->userCan( File::DELETED_FILE, $user ) ) {
# Don't link to unviewable files
$row .= ''
. $lang->userTimeAndDate( $timestamp, $user ) . '';
} 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 .= '' . $url . '';
} elseif ( !$file->exists() ) {
$row .= ''
. $lang->userTimeAndDate( $timestamp, $user ) . '';
} else {
$url = $iscur ? $this->current->getUrl() : $this->current->getArchiveUrl( $img );
$row .= Xml::element(
'a',
array( 'href' => $url ),
$lang->userTimeAndDate( $timestamp, $user )
);
}
$row .= " | ";
// Thumbnail
if ( $this->showThumb ) {
$row .= '
' . $this->getThumbForLine( $file ) . ' | ';
}
// Image dimensions + size
$row .= '
';
$row .= htmlspecialchars( $file->getDimensionsString() );
$row .= $this->msg( 'word-separator' )->escaped();
$row .= '';
$row .= $this->msg( 'parentheses' )->sizeParams( $file->getSize() )->escaped();
$row .= '';
$row .= ' | ';
// Uploading user
$row .= '
';
// Hide deleted usernames
if ( $file->isDeleted( File::DELETED_USER ) ) {
$row .= ''
. $this->msg( 'rev-deleted-user' )->escaped() . '';
} else {
if ( $local ) {
$row .= Linker::userLink( $userId, $userText );
$row .= '';
$row .= Linker::userToolLinks( $userId, $userText );
$row .= '';
} else {
$row .= htmlspecialchars( $userText );
}
}
$row .= ' | ';
// Don't show deleted descriptions
if ( $file->isDeleted( File::DELETED_COMMENT ) ) {
$row .= '
' .
$this->msg( 'rev-deleted-comment' )->escaped() . ' | ';
} else {
$row .= '
' .
Linker::formatComment( $description, $this->title ) . ' | ';
}
$rowClass = null;
Hooks::run( 'ImagePageFileHistoryLine', array( $this, $file, &$row, &$rowClass ) );
$classAttr = $rowClass ? " class='$rowClass'" : '';
return "
{$row}\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;
}
}