wp-includes/class-wp-icons-registry.php:15Core class used for interacting with registered icons.
$registered_iconsarray[]protected$instanceWP_Icons_Registry|nullprotected staticclass WP_Icons_Registry { /** * Registered icons array. * * @var array[] */ protected $registered_icons = array(); /** * Container for the main instance of the class. * * @var WP_Icons_Registry|null */ protected static $instance = null; /** * Constructor. * * WP_Icons_Registry is a singleton class, so keep this protected. * * For 7.0, the Icons Registry is closed for third-party icon registry, * serving only a subset of core icons. * * These icons are defined in @wordpress/packages (Gutenberg repository) as * SVG files and as entries in a single manifest file. On init, the * registry is loaded with those icons listed in the manifest. */ protected function __construct() { $icons_directory = __DIR__ . '/images/icon-library/'; $manifest_path = __DIR__ . '/assets/icon-library-manifest.php'; if ( ! is_readable( $manifest_path ) ) { wp_trigger_error( __METHOD__, __( 'Core icon collection manifest is missing or unreadable.' ) ); return; } $collection = include $manifest_path; if ( empty( $collection ) ) { wp_trigger_error( __METHOD__, __( 'Core icon collection manifest is empty or invalid.' ) ); return; } foreach ( $collection as $icon_name => $icon_data ) { if ( empty( $icon_data['filePath'] ) || ! is_string( $icon_data['filePath'] ) ) { _doing_it_wrong( __METHOD__, __( 'Core icon collection manifest must provide valid a "filePath" for each icon.' ), '7.0.0' ); return; } $this->register( 'core/' . $icon_name, array( 'label' => $icon_data['label'], 'filePath' => $icons_directory . $icon_data['filePath'], ) ); } } /** * Registers an icon. * * @param string $icon_name Icon name including namespace. * @param array $icon_properties { * List of properties for the icon. *Introduced in 7.0.0. One change between 7.0.4 and 7.1.0.
Signature, return type and hooks compared across 2 parsed releases.
unregister() added.verified against sourcesrc/wp-includes/class-wp-icons-registry.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.