function transform($params, $flags = 0)
{
if (!$this->canRender()) {
// show icon
return parent::transform($params, $flags);
}
$thumbUrl = $this->repo->getThumbUrlFromCache($this->getName(), isset($params['width']) ? $params['width'] : -1, isset($params['height']) ? $params['height'] : -1);
return $this->handler->getTransform($this, 'bogus', $thumbUrl, $params);
}
/**
* @param File $image
* @param int $size
* @return bool|\MediaTransformOutput
*/
public static function getThumbnail($image, $size = self::SHARING_THUMBNAIL_WIDTH)
{
if ($image) {
$thumb = $image->transform(array('width' => $size));
if ($thumb && $thumb->getUrl()) {
return $thumb;
}
}
return false;
}
/**
* Creates an thumbnail of specified size and returns an HTML link to it
* @param array $params Scaler parameters
* @param $width int
* @param $height int
* @return string
*/
private function makeSizeLink($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(), $thumbnail->getHeight())->parse());
} else {
return '';
}
}
function transform($params, $flags = 0)
{
if (!$this->canRender()) {
// show icon
return parent::transform($params, $flags);
}
// Note, the this->canRender() check above implies
// that we have a handler, and it can do makeParamString.
$otherParams = $this->handler->makeParamString($params);
$thumbUrl = $this->repo->getThumbUrlFromCache($this->getName(), isset($params['width']) ? $params['width'] : -1, isset($params['height']) ? $params['height'] : -1, $otherParams);
return $this->handler->getTransform($this, 'bogus', $thumbUrl, $params);
}
/**
* Process responsive images: add 1.5x and 2x subimages to the thumbnail, where
* applicable.
*
* @param File $file
* @param MediaTransformOutput $thumb
* @param array $hp Image parameters
*/
public static function processResponsiveImages($file, $thumb, $hp)
{
global $wgResponsiveImages;
if ($wgResponsiveImages && $thumb && !$thumb->isError()) {
$hp15 = $hp;
$hp15['width'] = round($hp['width'] * 1.5);
$hp20 = $hp;
$hp20['width'] = $hp['width'] * 2;
if (isset($hp['height'])) {
$hp15['height'] = round($hp['height'] * 1.5);
$hp20['height'] = $hp['height'] * 2;
}
$thumb15 = $file->transform($hp15);
$thumb20 = $file->transform($hp20);
if ($thumb15 && !$thumb15->isError() && $thumb15->getUrl() !== $thumb->getUrl()) {
$thumb->responsiveUrls['1.5'] = $thumb15->getUrl();
}
if ($thumb20 && !$thumb20->isError() && $thumb20->getUrl() !== $thumb->getUrl()) {
$thumb->responsiveUrls['2'] = $thumb20->getUrl();
}
}
}
/**
* @param array $params
* @param int $flags
* @return bool|MediaTransformOutput
*/
function transform($params, $flags = 0)
{
if (!$this->canRender()) {
// show icon
return parent::transform($params, $flags);
}
// Note, the this->canRender() check above implies
// that we have a handler, and it can do makeParamString.
$otherParams = $this->handler->makeParamString($params);
$width = isset($params['width']) ? $params['width'] : -1;
$height = isset($params['height']) ? $params['height'] : -1;
$thumbUrl = $this->repo->getThumbUrlFromCache($this->getName(), $width, $height, $otherParams);
if ($thumbUrl === false) {
global $wgLang;
return $this->repo->getThumbError($this->getName(), $width, $height, $otherParams, $wgLang->getCode());
}
return $this->handler->getTransform($this, 'bogus', $thumbUrl, $params);
}
/**
* @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 = ['width' => '120', 'height' => '120'];
$timestamp = wfTimestamp(TS_MW, $file->getTimestamp());
$thumbnail = $file->transform($params);
$options = ['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();
}
}
/**
* Scale a file (probably with a locally installed imagemagick, or similar)
* and output it to STDOUT.
* @param File $file
* @param array $params Scaling parameters ( e.g. array( width => '50' ) );
* @param int $flags Scaling flags ( see File:: constants )
* @throws MWException|UploadStashFileNotFoundException
* @return bool Success
*/
private function outputLocallyScaledThumb($file, $params, $flags)
{
// n.b. this is stupid, we insist on re-transforming the file every time we are invoked. We rely
// on HTTP caching to ensure this doesn't happen.
$flags |= File::RENDER_NOW;
$thumbnailImage = $file->transform($params, $flags);
if (!$thumbnailImage) {
throw new MWException('Could not obtain thumbnail');
}
// we should have just generated it locally
if (!$thumbnailImage->getStoragePath()) {
throw new UploadStashFileNotFoundException("no local path for scaled item");
}
// now we should construct a File, so we can get MIME and other such info in a standard way
// n.b. MIME type may be different from original (ogx original -> jpeg thumb)
$thumbFile = new UnregisteredLocalFile(false, $this->stash->repo, $thumbnailImage->getStoragePath(), false);
if (!$thumbFile) {
throw new UploadStashFileNotFoundException("couldn't create local file object for thumbnail");
}
return $this->outputLocalFile($thumbFile);
}
/**
*
* @param File $img
* @param Title $nt
* @param String $text
* @param String $alt
* @param Title $titleLink
* @param type $descQuery
* @return String
*/
private function photoToHTML($img, $nt, $text = '', $alt = '', $titleLink = null, $descQuery = '')
{
$params = array('width' => $this->mPhotoWidth, 'height' => $this->mPhotoHeight);
if (!$img) {
$html = '<div class="CarError" style="height: ' . $params['height'] . 'px; width: ' . $params['width'] . 'px;">' . htmlspecialchars($nt->getText()) . '</div>';
} else {
if ($this->mHideBadImages && wfIsBadImage($nt->getDBkey(), $this->getContextTitle())) {
$html = '<div class="CarError" style="height: ' . $params['height'] . 'px; width: ' . $params['width'] . 'px;">' . Linker::link($nt, htmlspecialchars($nt->getText()), array(), array(), array('known', 'noclasses')) . '</div>';
} else {
if (!($thumb = $img->transform($params))) {
# Error generating thumbnail.
$html = '<div class="CarError" style="height: ' . $params['height'] . 'px; width: ' . $params['width'] . 'px;">' . htmlspecialchars($img->getLastError()) . '</div>';
} else {
$imageParameters = array('desc-link' => true, 'desc-query' => $descQuery, 'alt' => $alt, 'custom-title-link' => $titleLink);
# In the absence of both alt text and caption, fall back on providing screen readers with the filename as alt text
if ($alt == '') {
$imageParameters['alt'] = $nt->getText();
}
$html = $thumb->toHtml($imageParameters);
// Call parser transform hook
if ($this->mParser && $img->getHandler()) {
$img->getHandler()->parserTransformHook($this->mParser, $img);
}
}
}
}
$html .= Html::rawElement('figcaption', array(), $text);
$html = Html::rawElement('figure', array(), $html);
return $html;
}
/**
* Actually try to generate a new thumbnail
*
* @param File $file
* @param array $params
* @param string $thumbName
* @param string $thumbPath
* @return array (MediaTransformOutput|bool, string|bool error message HTML)
*/
function wfGenerateThumbnail(File $file, array $params, $thumbName, $thumbPath)
{
global $wgMemc, $wgAttemptFailureEpoch;
$key = wfMemcKey('attempt-failures', $wgAttemptFailureEpoch, $file->getRepo()->getName(), $file->getSha1(), md5($thumbName));
// Check if this file keeps failing to render
if ($wgMemc->get($key) >= 4) {
return array(false, wfMessage('thumbnail_image-failure-limit', 4));
}
$done = false;
// Record failures on PHP fatals in addition to caching exceptions
register_shutdown_function(function () use(&$done, $key) {
if (!$done) {
// transform() gave a fatal
global $wgMemc;
// Randomize TTL to reduce stampedes
$wgMemc->incrWithInit($key, 3600 + mt_rand(0, 300));
}
});
$thumb = false;
$errorHtml = false;
// guard thumbnail rendering with PoolCounter to avoid stampedes
// expensive files use a separate PoolCounter config so it is possible
// to set up a global limit on them
if ($file->isExpensiveToThumbnail()) {
$poolCounterType = 'FileRenderExpensive';
} else {
$poolCounterType = 'FileRender';
}
// Thumbnail isn't already there, so create the new thumbnail...
try {
$work = new PoolCounterWorkViaCallback($poolCounterType, sha1($file->getName()), array('doWork' => function () use($file, $params) {
return $file->transform($params, File::RENDER_NOW);
}, 'getCachedWork' => function () use($file, $params, $thumbPath) {
// If the worker that finished made this thumbnail then use it.
// Otherwise, it probably made a different thumbnail for this file.
return $file->getRepo()->fileExists($thumbPath) ? $file->transform($params, File::RENDER_NOW) : false;
// retry once more in exclusive mode
}, 'fallback' => function () {
return wfMessage('generic-pool-error')->parse();
}, 'error' => function (Status $status) {
return $status->getHTML();
}));
$result = $work->execute();
if ($result instanceof MediaTransformOutput) {
$thumb = $result;
} elseif (is_string($result)) {
// error
$errorHtml = $result;
}
} catch (Exception $e) {
// Tried to select a page on a non-paged file?
}
/** @noinspection PhpUnusedLocalVariableInspection */
$done = true;
// no PHP fatal occured
if (!$thumb || $thumb->isError()) {
// Randomize TTL to reduce stampedes
$wgMemc->incrWithInit($key, 3600 + mt_rand(0, 300));
}
return array($thumb, $errorHtml);
}
/**
* Process responsive images: add 1.5x and 2x subimages to the thumbnail, where
* applicable.
*
* @param File $file
* @param MediaOutput $thumb
* @param array $hp image parameters
*/
protected static function processResponsiveImages($file, $thumb, $hp)
{
global $wgResponsiveImages;
if ($wgResponsiveImages) {
$hp15 = $hp;
$hp15['width'] = round($hp['width'] * 1.5);
$hp20 = $hp;
$hp20['width'] = $hp['width'] * 2;
if (isset($hp['height'])) {
$hp15['height'] = round($hp['height'] * 1.5);
$hp20['height'] = $hp['height'] * 2;
}
$thumb15 = $file->transform($hp15);
$thumb20 = $file->transform($hp20);
if ($thumb15->url !== $thumb->url) {
$thumb->responsiveUrls['1.5'] = $thumb15->url;
}
if ($thumb20->url !== $thumb->url) {
$thumb->responsiveUrls['2'] = $thumb20->url;
}
}
}
public static function onThumbnailVideoHTML($options, $linkAttribs, $imageAttribs, File $file, &$html)
{
global $wgRTEParserEnabled;
if (!empty($wgRTEParserEnabled)) {
return true;
}
if (is_null(self::$isWikiaMobile)) {
self::init();
}
if (self::$isWikiaMobile) {
wfProfileIn(__METHOD__);
/**
* WikiaMobile: lazy loading images in a SEO-friendly manner
* @author Federico "Lox" Lucignano <federico@wikia-inc.com
* @author Artur Klajnerok <*****@*****.**>
*/
$origImg = Xml::element('img', $imageAttribs, '', true);
if (empty($imageAttribs['alt'])) {
unset($imageAttribs['alt']);
}
//Not all 'files' have getProviderName defined
if (is_callable([$file, 'getProviderName'])) {
$provider = $file->getProviderName();
} else {
$provider = '';
}
$imageParams = array('type' => 'video', 'provider' => $provider, 'full' => $imageAttribs['src']);
if (!empty($imageAttribs['data-video-key'])) {
$imageParams['name'] = htmlspecialchars($imageAttribs['data-video-key']);
}
if (!empty($options['caption'])) {
$imageParams['capt'] = 1;
}
// TODO: this resizes every video thumbnail with a width over 64px regardless of where it appears.
// We may want to add the ability to allow custom image widths (like on the file page history table for example)
$size = WikiaMobileMediaService::calculateMediaSize($file->getWidth(), $file->getHeight());
$thumb = $file->transform($size);
$imageAttribs['src'] = wfReplaceImageServer($thumb->getUrl(), $file->getTimestamp());
$imageAttribs['width'] = $size['width'];
$imageAttribs['height'] = $size['height'];
$data = ['attributes' => $imageAttribs, 'parameters' => [$imageParams], 'anchorAttributes' => $linkAttribs, 'noscript' => $origImg, 'isSmall' => WikiaMobileMediaService::isSmallImage($imageAttribs['width'], $imageAttribs['height'])];
$title = $file->getTitle()->getDBKey();
$titleText = $file->getTitle()->getText();
$views = MediaQueryService::getTotalVideoViewsByTitle($title);
$data['content'] = Xml::element('span', ['class' => 'videoInfo'], "{$titleText} (" . $file->getHandler()->getFormattedDuration() . ", " . wfMessage('wikiamobile-video-views-counter', $views)->inContentLanguage()->text() . ')');
$html = F::app()->sendRequest('WikiaMobileMediaService', 'renderImageTag', $data, true)->toString();
wfProfileOut(__METHOD__);
}
return true;
}
public function onThumbnailVideoHTML($options, $linkAttribs, $imageAttribs, File $file, &$html)
{
$this->wf->profileIn(__METHOD__);
if (self::$isWikiaMobile) {
/**
* WikiaMobile: lazy loading images in a SEO-friendly manner
* @author Federico "Lox" Lucignano <federico@wikia-inc.com
* @author Artur Klajnerok <*****@*****.**>
*/
$origImg = Xml::element('img', $imageAttribs, '', true);
if (empty($imageAttribs['alt'])) {
unset($imageAttribs['alt']);
}
$imageParams = array('type' => 'video', 'full' => $imageAttribs['src']);
if (!empty($linkAttribs['data-video-name'])) {
$imageParams['name'] = $linkAttribs['data-video-name'];
}
if (!empty($options['caption'])) {
$imageParams['capt'] = true;
}
if ($file instanceof File) {
$size = WikiaMobileMediaService::calculateMediaSize($file->getWidth(), $file->getHeight());
$thumb = $file->transform($size);
$imageAttribs['src'] = wfReplaceImageServer($thumb->getUrl(), $file->getTimestamp());
$imageAttribs['width'] = $size['width'];
$imageAttribs['height'] = $size['height'];
}
$data = array('attributes' => $imageAttribs, 'parameters' => array($imageParams), 'anchorAttributes' => $linkAttribs, 'noscript' => $origImg);
if ($file instanceof File) {
$title = $file->getTitle()->getDBKey();
$titleText = $file->getTitle()->getText();
$data['content'] = Xml::element('span', array('class' => 'videoInfo'), "{$titleText} (" . $file->getHandler()->getFormattedDuration() . ", " . $this->wf->MsgForContent('wikiamobile-video-views-counter', MediaQueryService::getTotalVideoViewsByTitle($title)) . ')');
}
$html = $this->app->sendRequest('WikiaMobileMediaService', 'renderImageTag', $data, true)->toString();
}
$this->wf->profileOut(__METHOD__);
return true;
}
