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Fix PHP warning when preloading scripts on WPEngine (https://github.com/woocommerce/woocommerce-admin/pull/4856) 

* Handle missing script dependencies when preloading.

* Updated terminology.
This commit is contained in:
Jeff Stieler 2020-07-23 15:02:31 -04:00 committed by GitHub
parent cc8b7982a3
commit fe1e422039
1 changed files with 18 additions and 11 deletions
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29
plugins/woocommerce-admin/src/Loader.php
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@ -519,16 +519,16 @@ class Loader {
/**
* Render a preload link tag for a dependency, optionally
* checked against a provided whitelist.
* checked against a provided allowlist.
*
* See: https://macarthur.me/posts/preloading-javascript-in-wordpress
*
* @param WP_Dependency $dependency The WP_Dependency being preloaded.
* @param string $type Dependency type - 'script' or 'style'.
* @param array $whitelist Optional. List of allowed dependency handles.
* @param array $allowlist Optional. List of allowed dependency handles.
*/
public static function maybe_output_preload_link_tag( $dependency, $type, $whitelist = array() ) {
if ( ! empty( $whitelist ) && ! in_array( $dependency->handle, $whitelist, true ) ) {
public static function maybe_output_preload_link_tag( $dependency, $type, $allowlist = array() ) {
if ( ! empty( $allowlist ) && ! in_array( $dependency->handle, $allowlist, true ) ) {
return;
}
@ -539,14 +539,14 @@ class Loader {
/**
* Output a preload link tag for dependencies (and their sub dependencies)
* with an optional whitelist.
* with an optional allowlist.
*
* See: https://macarthur.me/posts/preloading-javascript-in-wordpress
*
* @param string $type Dependency type - 'script' or 'style'.
* @param array $whitelist Optional. List of allowed dependency handles.
* @param array $allowlist Optional. List of allowed dependency handles.
*/
public static function output_header_preload_tags_for_type( $type, $whitelist = array() ) {
public static function output_header_preload_tags_for_type( $type, $allowlist = array() ) {
if ( 'script' === $type ) {
$dependencies_of_type = wp_scripts();
} elseif ( 'style' === $type ) {
@ -556,15 +556,22 @@ class Loader {
}
foreach ( $dependencies_of_type->queue as $dependency_handle ) {
$dependency = $dependencies_of_type->registered[ $dependency_handle ];
$dependency = $dependencies_of_type->query( $dependency_handle, 'registered' );
if ( false === $dependency ) {
continue;
}
// Preload the subdependencies first.
foreach ( $dependency->deps as $sub_dependency_handle ) {
$sub_dependency = $dependencies_of_type->registered[ $sub_dependency_handle ];
self::maybe_output_preload_link_tag( $sub_dependency, $type, $whitelist );
$sub_dependency = $dependencies_of_type->query( $sub_dependency_handle, 'registered' );
if ( $sub_dependency ) {
self::maybe_output_preload_link_tag( $sub_dependency, $type, $allowlist );
}
}
self::maybe_output_preload_link_tag( $dependency, $type, $whitelist );
self::maybe_output_preload_link_tag( $dependency, $type, $allowlist );
}
}