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SearchResultProvideThumbnailHookHandler.php
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SearchResultProvideThumbnailHookHandler.php
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<?php
namespace PageImages\Hooks;
use MediaWiki\Page\PageIdentity;
use MediaWiki\Page\PageProps;
use MediaWiki\Search\Hook\SearchResultProvideThumbnailHook;
use MediaWiki\Search\SearchResultThumbnailProvider;
use PageImages\PageImages;
use RepoGroup;
class SearchResultProvideThumbnailHookHandler implements SearchResultProvideThumbnailHook {
/** @var SearchResultThumbnailProvider */
private $thumbnailProvider;
/** @var PageProps */
private $pageProps;
/** @var RepoGroup */
private $repoGroup;
/**
* @param SearchResultThumbnailProvider $thumbnailProvider
* @param PageProps $pageProps
* @param RepoGroup $repoGroup
*/
public function __construct(
SearchResultThumbnailProvider $thumbnailProvider,
PageProps $pageProps,
RepoGroup $repoGroup
) {
$this->thumbnailProvider = $thumbnailProvider;
$this->pageProps = $pageProps;
$this->repoGroup = $repoGroup;
}
/**
* Returns a list of fileNames for a given list of PageIdentity objects (outside of NS_FILE)
*
* @param PageIdentity[] $identitiesByPageId key-value array of where key
* is pageId, value is PageIdentity
* @return array
*/
private function getFileNamesByPageId( array $identitiesByPageId ): array {
$nonFileIdentitiesByPageId = array_filter(
$identitiesByPageId,
static function ( PageIdentity $pageIdentity ) {
return $pageIdentity->getNamespace() !== NS_FILE;
}
);
$propValues = $this->pageProps->getProperties(
$nonFileIdentitiesByPageId,
// T320661: only provide free images for search purposes
(array)PageImages::getPropNames( PageImages::LICENSE_FREE )
);
$fileNames = array_map( static function ( $prop ) {
return $prop[ PageImages::getPropName( false ) ]
?? $prop[ PageImages::getPropName( true ) ]
?? null;
}, $propValues );
return array_filter( $fileNames, static function ( $fileName ) {
return $fileName !== null;
} );
}
/**
* @param array $pageIdentities array that contain $pageId => PageIdentity.
* @param array &$results Placeholder for result. $pageId => SearchResultThumbnail
* @param int|null $size size of thumbnail height and width in points
*/
public function onSearchResultProvideThumbnail( array $pageIdentities, &$results, ?int $size = null ): void {
$fileNamesByPageId = $this->getFileNamesByPageId( $pageIdentities );
$results ??= [];
foreach ( $fileNamesByPageId as $pageId => $fileName ) {
$file = $this->repoGroup->findFile( $fileName );
if ( !$file ) {
continue;
}
$thumbnail = $this->thumbnailProvider->buildSearchResultThumbnailFromFile( $file, $size );
if ( $thumbnail ) {
$results[$pageId] = $thumbnail;
}
}
}
}

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SearchResultProvideThumbnailHookHandler.php (2 KB)

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