Drupal\Core\Asset\LibraryDiscoveryInterface

interface LibraryDiscoveryInterface (View source)

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.

Methods

array

getLibrariesByExtension(string $extension)

Gets all libraries defined by an extension.

array|false

getLibraryByName(string $extension, string $name)

Gets a single library defined by an extension by name.

clearCachedDefinitions()

Clears static and persistent library definition caches.

Gets all libraries defined by an extension.

string

$extension

The name of the extension that registered a library.

array

An associative array of libraries registered by $extension is returned (which may be empty).

Gets a single library defined by an extension by name.

string	$extension	The name of the extension that registered a library.
string	$name	The name of a registered library to retrieve.

array|false

The definition of the requested library, if $name was passed and it exists, otherwise FALSE.

Clears static and persistent library definition caches.