register_block_script_handle() │ WP 5.5.0

Finds a script handle for the selected block metadata field.

Detects when a path to a file was provided and optionally finds a corresponding asset file with details necessary to register the script. The handle is taken from the asset file when it provides one, and is otherwise generated automatically. It returns the unprocessed script handle when a handle rather than a path was given.

Хуков нет.

Возвращает

string|false. Script handle provided directly or created through script's registration, or false on failure.

Использование

register_block_script_handle( $metadata, $field_name, $index );
$metadata(массив) (обязательный)
Block metadata.
$field_name(строка) (обязательный)
Field name to pick from metadata.
$index(int)
Index of the script to register when multiple items passed.

Список изменений

С версии 5.5.0 Введена.
С версии 6.1.0 Added $index parameter.
С версии 6.5.0 The asset file is optional. Added script handle support in the asset file.

Код register_block_script_handle() WP 7.1.3

function register_block_script_handle( $metadata, $field_name, $index = 0 ) {
	if ( empty( $metadata[ $field_name ] ) ) {
		return false;
	}

	$script_handle_or_path = $metadata[ $field_name ];
	if ( is_array( $script_handle_or_path ) ) {
		if ( empty( $script_handle_or_path[ $index ] ) ) {
			return false;
		}
		$script_handle_or_path = $script_handle_or_path[ $index ];
	}

	$script_path = remove_block_asset_path_prefix( $script_handle_or_path );
	if ( $script_handle_or_path === $script_path ) {
		return $script_handle_or_path;
	}

	$path                  = dirname( $metadata['file'] );
	$script_asset_raw_path = $path . '/' . substr_replace( $script_path, '.asset.php', - strlen( '.js' ) );
	$script_asset_path     = wp_normalize_path(
		realpath( $script_asset_raw_path )
	);

	// Asset file for blocks is optional. See https://core.trac.wordpress.org/ticket/60460.
	/** @var array{ handle?: non-falsy-string, dependencies?: list<non-falsy-string>, version?: string|false|null, ... } $script_asset */
	$script_asset  = ! empty( $script_asset_path ) ? require $script_asset_path : array();
	$script_handle = $script_asset['handle'] ??
		generate_block_asset_handle( $metadata['name'], $field_name, $index );
	if ( wp_script_is( $script_handle, 'registered' ) ) {
		return $script_handle;
	}

	$script_path_norm    = wp_normalize_path( realpath( $path . '/' . $script_path ) );
	$script_uri          = get_block_asset_url( $script_path_norm );
	$script_dependencies = $script_asset['dependencies'] ?? array();
	$block_version       = $metadata['version'] ?? false;
	$script_version      = $script_asset['version'] ?? $block_version;
	$script_args         = array();
	if ( 'viewScript' === $field_name && $script_uri ) {
		$script_args['strategy'] = 'defer';
	}

	$result = wp_register_script(
		$script_handle,
		$script_uri,
		$script_dependencies,
		$script_version,
		$script_args
	);
	if ( ! $result ) {
		return false;
	}

	if ( ! empty( $metadata['textdomain'] ) && in_array( 'wp-i18n', $script_dependencies, true ) ) {
		wp_set_script_translations( $script_handle, $metadata['textdomain'] );
	}

	return $script_handle;
}