/**
* Get data for each gallery item
* @param array $item Data about the media item
* @param int $index Where the item shows up in the gallery
* @return array|null
*/
protected function getMediaData(array $item, $index)
{
$file = wfFindFile($item['title']);
if (!$file instanceof File) {
WikiaLogger::instance()->error('File with title: ' . $item['title'] . 'doesn\'t exist', ['class' => __CLASS__]);
return null;
}
$dimension = MediaGalleryHelper::getImageWidth($this->itemCount, $index);
$thumbUrl = WikiaFileHelper::getSquaredThumbnailUrl($file, $dimension);
$dimensions = ['width' => $dimension, 'height' => $dimension];
$thumb = $file->transform($dimensions);
if (!$thumb instanceof ThumbnailImage) {
WikiaLogger::instance()->error('ThumbnailImage from title: ' . $item['title'] . ' couldn\'t be created.', ['thumbClass' => get_class($thumb)]);
return null;
}
$thumb->setUrl($thumbUrl);
$thumbnail = $this->app->renderView('ThumbnailController', 'gallery', ['thumb' => $thumb]);
$caption = '';
if (!empty($item['caption'])) {
// parse any wikitext in caption. Logic borrowed from WikiaMobileMediaService::renderMediaGroup.
$parser = $this->getParser();
$caption = $parser->internalParse($item['caption']);
$parser->replaceLinkHolders($caption);
$caption = $parser->killMarkers($caption);
}
$title = $file->getTitle();
return ['thumbUrl' => $thumbUrl, 'thumbHtml' => $thumbnail, 'caption' => $caption, 'linkHref' => $file->getTitle()->getLinkURL(), 'title' => $title->getText(), 'dbKey' => $title->getDBKey()];
}
/**
* Set urls to be used for <picture> tags. Sets both thumbnails in the original format (jpeg, png, etc),
* and WebP to be used if the browser supports it.
* @param WikiaController $controller
* @param MediaTransformOutput $thumb
*/
public static function setPictureTagInfo(WikiaController $controller, MediaTransformOutput $thumb)
{
$file = $thumb->file;
$fullSizeDimension = max($thumb->getWidth(), $thumb->getHeight());
$smallSizeDimension = $fullSizeDimension * self::SMALL_THUMB_SIZE;
$useWebP = true;
// get small images (original and WebP)
$controller->smallUrl = WikiaFileHelper::getSquaredThumbnailUrl($file, $smallSizeDimension);
$controller->smallUrlWebP = WikiaFileHelper::getSquaredThumbnailUrl($file, $smallSizeDimension, $useWebP);
// Set the breakpoint used by the <picture> tag to determine which image to load
$controller->breakPoint = self::MEDIUM_BREAKPOINT;
// get full size WebP image
$controller->imgSrcWebP = WikiaFileHelper::getSquaredThumbnailUrl($file, $fullSizeDimension, $useWebP);
// Let image template know to use <picture> tag instead of <img> tag
$controller->usePictureTag = true;
}
