register_block_script_handle() WordPress Function
The register_block_script_handle() function is used to register a new script handle for a WordPress block. This function should be called from the init hook.
register_block_script_handle( array $metadata, string $field_name ) #
Finds a script handle for the selected block metadata field. It detects when a path to file was provided and finds a corresponding asset file with details necessary to register the script under automatically generated handle name. It returns unprocessed script handle otherwise.
Parameters
- $metadata
(array)(Required)Block metadata.
- $field_name
(string)(Required)Field name to pick from metadata.
Return
(string|false) Script handle provided directly or created through script's registration, or false on failure.
Source
File: wp-includes/blocks.php
function register_block_script_handle( $metadata, $field_name ) {
if ( empty( $metadata[ $field_name ] ) ) {
return false;
}
$script_handle = $metadata[ $field_name ];
$script_path = remove_block_asset_path_prefix( $metadata[ $field_name ] );
if ( $script_handle === $script_path ) {
return $script_handle;
}
$script_handle = generate_block_asset_handle( $metadata['name'], $field_name );
$script_asset_path = wp_normalize_path(
realpath(
dirname( $metadata['file'] ) . '/' .
substr_replace( $script_path, '.asset.php', - strlen( '.js' ) )
)
);
if ( ! file_exists( $script_asset_path ) ) {
_doing_it_wrong(
__FUNCTION__,
sprintf(
/* translators: 1: Field name, 2: Block name. */
__( 'The asset file for the "%1$s" defined in "%2$s" block definition is missing.' ),
$field_name,
$metadata['name']
),
'5.5.0'
);
return false;
}
// Path needs to be normalized to work in Windows env.
$wpinc_path_norm = wp_normalize_path( realpath( ABSPATH . WPINC ) );
$theme_path_norm = wp_normalize_path( get_theme_file_path() );
$script_path_norm = wp_normalize_path( realpath( dirname( $metadata['file'] ) . '/' . $script_path ) );
$is_core_block = isset( $metadata['file'] ) && 0 === strpos( $metadata['file'], $wpinc_path_norm );
$is_theme_block = 0 === strpos( $script_path_norm, $theme_path_norm );
$script_uri = plugins_url( $script_path, $metadata['file'] );
if ( $is_core_block ) {
$script_uri = includes_url( str_replace( $wpinc_path_norm, '', $script_path_norm ) );
} elseif ( $is_theme_block ) {
$script_uri = get_theme_file_uri( str_replace( $theme_path_norm, '', $script_path_norm ) );
}
$script_asset = require $script_asset_path;
$script_dependencies = isset( $script_asset['dependencies'] ) ? $script_asset['dependencies'] : array();
$result = wp_register_script(
$script_handle,
$script_uri,
$script_dependencies,
isset( $script_asset['version'] ) ? $script_asset['version'] : false
);
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;
}
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Changelog
| Version | Description |
|---|---|
| 5.5.0 | Introduced. |