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| <?php | |
| /** | |
| * @file | |
| * Contains \Drupal\Core\Asset\LibraryDiscoveryInterface. | |
| */ | |
| namespace Drupal\Core\Asset; | |
| /** | |
| * Discovers information for asset (CSS/JavaScript) libraries. | |
| * | |
| * Library information is statically cached. Libraries are keyed by extension | |
| * for several reasons: | |
| * - Libraries are not unique. Multiple extensions might ship with the same | |
| * library in a different version or variant. This registry cannot (and does | |
| * not attempt to) prevent library conflicts. | |
| * - Extensions implementing and thereby depending on a library that is | |
| * registered by another extension can only rely on that extension's library. | |
| * - Two (or more) extensions can still register the same library and use it | |
| * without conflicts in case the libraries are loaded on certain pages only. | |
| */ | |
| interface LibraryDiscoveryInterface { | |
| /** | |
| * Gets all libraries defined by an extension. | |
| * | |
| * @param string $extension | |
| * The name of the extension that registered a library. | |
| * | |
| * @return array | |
| * An associative array of libraries registered by $extension is returned | |
| * (which may be empty). | |
| * | |
| * @see self::getLibraryByName() | |
| */ | |
| public function getLibrariesByExtension($extension); | |
| /** | |
| * Gets a single library defined by an extension by name. | |
| * | |
| * @param string $extension | |
| * The name of the extension that registered a library. | |
| * @param string $name | |
| * The name of a registered library to retrieve. | |
| * | |
| * @return array|FALSE | |
| * The definition of the requested library, if $name was passed and it | |
| * exists, otherwise FALSE. | |
| */ | |
| public function getLibraryByName($extension, $name); | |
| /** | |
| * Clears static and persistent library definition caches. | |
| */ | |
| public function clearCachedDefinitions(); | |
| } |