Weak hands cannot be planted, meager skills have no foundation. Shallow wisdom is futile, how can one hope for a good name?扰扰从役倦，屑屑身事微。少壮轻年月，迟暮惜光辉。
get_dependency_handles( $handle ) as $other_handle ) {
$urls[ $other_handle ] = $this->get_asset_url( $other_handle );
}
return $urls;
}
/**
* Recursively retrieves all dependencies of a given handle.
*
* @param string $handle The handle.
*
* @return string[] All dependencies of the given handle.
*/
public function get_dependency_handles( $handle ) {
$scripts = \wp_scripts();
if ( ! isset( $scripts->registered[ $handle ] ) ) {
return [];
}
$obj = $scripts->registered[ $handle ];
$deps = $obj->deps;
foreach ( $obj->deps as $other_handle ) {
$nested_deps = $this->get_dependency_handles( $other_handle );
if ( ! $nested_deps ) {
continue;
}
// Place nested dependencies before primary dependencies, they need to be loaded first.
$deps = \array_merge( $nested_deps, $deps );
}
// Array unique keeps the first of each element so dependencies will be as early as they're required.
return \array_values( \array_unique( $deps ) );
}
/**
* Gets the URL of a given asset.
*
* This logic is copied from WP_Scripts::do_item as unfortunately that logic is not properly isolated.
*
* @param string $handle The handle of the asset.
*
* @return string|false The URL of the asset or false if the asset does not exist.
*/
public function get_asset_url( $handle ) {
$scripts = \wp_scripts();
if ( ! isset( $scripts->registered[ $handle ] ) ) {
return false;
}
$obj = $scripts->registered[ $handle ];
if ( $obj->ver === null ) {
$ver = '';
}
else {
$ver = ( $obj->ver ) ? $obj->ver : $script