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<?php
use MediaWiki\Linker\LinkTarget;
abstract class GadgetRepo {
/**
* @var GadgetRepo|null
*/
private static $instance;
/**
* Get the ids of the gadgets provided by this repository
*
* It's possible this could be out of sync with what
* getGadget() will return due to caching
*
* @return string[]
*/
abstract public function getGadgetIds();
/**
* Get the Gadget object for a given gadget id
*
* @param string $id
* @throws InvalidArgumentException
* @return Gadget
*/
abstract public function getGadget( $id );
/**
* Given that the provided page was updated, invalidate
* caches if necessary
*
* @param LinkTarget $target
*
* @return void
*/
public function handlePageUpdate( LinkTarget $target ) {
}
/**
* Given that the provided page was created, invalidate
* caches if necessary
*
* @param LinkTarget $target
*
* @return void
*/
public function handlePageCreation( LinkTarget $target ) {
}
/**
* Given that the provided page was updated, invalidate
* caches if necessary
*
* @param LinkTarget $target
*
* @return void
*/
public function handlePageDeletion( LinkTarget $target ) {
}
/**
* Get a list of gadgets sorted by category
*
* @return array [ 'category' => [ 'name' => $gadget ] ]
*/
public function getStructuredList() {
$list = [];
foreach ( $this->getGadgetIds() as $id ) {
try {
$gadget = $this->getGadget( $id );
} catch ( InvalidArgumentException $e ) {
continue;
}
$list[$gadget->getCategory()][$gadget->getName()] = $gadget;
}
return $list;
}
/**
* Get the configured default GadgetRepo.
*
* @return GadgetRepo
*/
public static function singleton() {
if ( self::$instance === null ) {
global $wgGadgetsRepoClass; // @todo use Config here
self::$instance = new $wgGadgetsRepoClass();
}
return self::$instance;
}
/**
* Should only be used by unit tests
*
* @param GadgetRepo|null $repo
*/
public static function setSingleton( $repo = null ) {
self::$instance = $repo;
}
}
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