/home/u523506497/domains/mymelon.in/public_html/wp-includes UP
<?php
/**
* Script Modules API: WP_Script_Modules class.
*
* Native support for ES Modules and Import Maps.
*
* @package WordPress
* @subpackage Script Modules
*/
/**
* Core class used to register script modules.
*
* @since 6.5.0
*
* @phpstan-type ScriptModule array{
* src: string,
* version: string|false|null,
* dependencies: array<int, array{ id: string, import: 'static'|'dynamic' }>,
* in_footer: bool,
* fetchpriority: 'auto'|'low'|'high',
* textdomain?: string,
* translations_path?: string,
* }
*/
class WP_Script_Modules {
/**
* Holds the registered script modules, keyed by script module identifier.
*
* @since 6.5.0
* @var array<string, array<string, mixed>>
* @phpstan-var array<string, ScriptModule>
*/
private $registered = array();
/**
* An array of IDs for queued script modules.
*
* @since 6.9.0
* @var string[]
*/
private $queue = array();
/**
* Holds the script module identifiers that have been printed.
*
* @since 6.9.0
* @var string[]
*/
private $done = array();
/**
* Tracks whether the @wordpress/a11y script module is available.
*
* Some additional HTML is required on the page for the module to work. Track
* whether it's available to print at the appropriate time.
*
* @since 6.7.0
* @var bool
*/
private $a11y_available = false;
/**
* Holds a mapping of dependents (as IDs) for a given script ID.
* Used to optimize recursive dependency tree checks.
*
* @since 6.9.0
* @var array<string, string[]>
*/
private $dependents_map = array();
/**
* Holds the valid values for fetchpriority.
*
* @since 6.9.0
* @var string[]
*/
private $priorities = array(
'low',
'auto',
'high',
);
/**
* List of IDs for script modules encountered which have missing dependencies.
*
* An ID is added to this list when it is discovered to have missing dependencies. At this time, a warning is
* emitted with {@see _doing_it_wrong()}. The ID is then added to this list, so that duplicate warnings don't occur.
*
* @since 6.9.1
* @var string[]
*/
private $modules_with_missing_dependencies = array();
/**
* Registers the script module if no script module with that script module
* identifier has already been registered.
*
* @since 6.5.0
* @since 6.9.0 Added the $args parameter.
*
* @param string $id The identifier of the script module. Should be unique. It will be used in the
* final import map.
* @param string $src Optional. Full URL of the script module, or path of the script module relative
* to the WordPress root directory. If it is provided and the script module has
* not been registered yet, it will be registered.
* @param array<string|array<string, string>> $deps {
* Optional. List of dependencies.
*
* @type string|array<string, string> ...$0 {
* An array of script module identifiers of the dependencies of this script
* module. The dependencies can be strings or arrays. If they are arrays,
* they need an `id` key with the script module identifier, and can contain
* an `import` key with either `static` or `dynamic`. By default,
* dependencies that don't contain an `import` key are considered static.
*
* @type string $id The script module identifier.
* @type string $import Optional. Import type. May be either `static` or
* `dynamic`. Defaults to `static`.
* }
* }
* @param string|false|null $version Optional. String specifying the script module version number. Defaults to false.
* It is added to the URL as a query string for cache busting purposes. If $version
* is set to false, the version number is the currently installed WordPress version.
* If $version is set to null, no version is added.
* @param array<string, string|bool> $args {
* Optional. An array of additional args. Default empty array.
*
* @type bool $in_footer Whether to print the script module in the footer. Only relevant to block themes. Default 'false'. Optional.
* @type 'auto'|'low'|'high' $fetchpriority Fetch priority. Default 'auto'. Optional.
* }
*/
public function register( string $id, string $src, array $deps = array(), $version = false, array $args = array() ) {
if ( '' === $id ) {
_doing_it_wrong( __METHOD__, __( 'Non-empty string required for id.' ), '6.9.0' );
return;
}
if ( ! isset( $this->registered[ $id ] ) ) {
$dependencies = array();
foreach ( $deps as $dependency ) {
if ( is_array( $dependency ) ) {
if ( ! isset( $dependency['id'] ) || ! is_string( $dependency['id'] ) ) {
_doing_it_wrong( __METHOD__, __( 'Missing required id key in entry among dependencies array.' ), '6.5.0' );
continue;
}
$dependencies[] = array(
'id' => $dependency['id'],
'import' => isset( $dependency['import'] ) && 'dynamic' === $dependency['import'] ? 'dynamic' : 'static',
);
} elseif ( is_string( $dependency ) ) {
$dependencies[] = array(
'id' => $dependency,
'import' => 'static',
);
} else {
_doing_it_wrong( __METHOD__, __( 'Entries in dependencies array must be either strings or arrays with an id key.' ), '6.5.0' );
}
}
$in_footer = isset( $args['in_footer'] ) && (bool) $args['in_footer'];
$fetchpriority = 'auto';
if ( isset( $args['fetchpriority'] ) ) {
if ( $this->is_valid_fetchpriority( $args['fetchpriority'] ) ) {
$fetchpriority = $args['fetchpriority'];
} else {
_doing_it_wrong(
__METHOD__,
sprintf(
/* translators: 1: $fetchpriority, 2: $id */
__( 'Invalid fetchpriority `%1$s` defined for `%2$s` during script registration.' ),
is_string( $args['fetchpriority'] ) ? $args['fetchpriority'] : gettype( $args['fetchpriority'] ),
$id
),
'6.9.0'
);
}
}
$this->registered[ $id ] = array(
'src' => $src,
'version' => $version,
'dependencies' => $dependencies,
'in_footer' => $in_footer,
'fetchpriority' => $fetchpriority,
);
}
}
/**
* Gets IDs for queued script modules.
*
* @since 6.9.0
*
* @return string[] Script module IDs.
*/
public function get_queue(): array {
return $this->queue;
}
/**
* Checks if the provided fetchpriority is valid.
*
* @since 6.9.0
*
* @param string|mixed $priority Fetch priority.
* @return bool Whether valid fetchpriority.
*/
private function is_valid_fetchpriority( $priority ): bool {
return in_array( $priority, $this->priorities, true );
}
/**
* Sets the fetch priority for a script module.
*
* @since 6.9.0
*
* @param string $id Script module identifier.
* @param 'auto'|'low'|'high' $priority Fetch priority for the script module.
* @return bool Whether setting the fetchpriority was successful.
*/
public function set_fetchpriority( string $id, string $priority ): bool {
if ( ! isset( $this->registered[ $id ] ) ) {
return false;
}
if ( '' === $priority ) {
$priority = 'auto';
}
if ( ! $this->is_valid_fetchpriority( $priority ) ) {
_doing_it_wrong(
__METHOD__,
/* translators: %s: Invalid fetchpriority. */
sprintf( __( 'Invalid fetchpriority: %s' ), $priority ),
'6.9.0'
);
return false;
}
$this->registered[ $id ]['fetchpriority'] = $priority;
return true;
}
/**
* Sets whether a script module should be printed in the footer.
*
* This is only relevant in block themes.
*
* @since 6.9.0
*
* @param string $id Script module identifier.
* @param bool $in_footer Whether to print in the footer.
* @return bool Whether setting the printing location was successful.
*/
public function set_in_footer( string $id, bool $in_footer ): bool {
if ( ! isset( $this->registered[ $id ] ) ) {
return false;
}
$this->registered[ $id ]['in_footer'] = $in_footer;
return true;
}
/**
* Marks the script module to be enqueued in the page.
*
* If a src is provided and the script module has not been registered yet, it
* will be registered.
*
* @since 6.5.0
* @since 6.9.0 Added the $args parameter.
*
* @param string $id The identifier of the script module. Should be unique. It will be used in the
* final import map.
* @param string $src Optional. Full URL of the script module, or path of the script module relative
* to the WordPress root directory. If it is provided and the script module has
* not been registered yet, it will be registered.
* @param array<string|array<string, string>> $deps {
* Optional. List of dependencies.
*
* @type string|array<string, string> ...$0 {
* An array of script module identifiers of the dependencies of this script
* module. The dependencies can be strings or arrays. If they are arrays,
* they need an `id` key with the script module identifier, and can contain
* an `import` key with either `static` or `dynamic`. By default,
* dependencies that don't contain an `import` key are considered static.
*
* @type string $id The script module identifier.
* @type string $import Optional. Import type. May be either `static` or
* `dynamic`. Defaults to `static`.
* }
* }
* @param string|false|null $version Optional. String specifying the script module version number. Defaults to false.
* It is added to the URL as a query string for cache busting purposes. If $version
* is set to false, the version number is the currently installed WordPress version.
* If $version is set to null, no version is added.
* @param array<string, string|bool> $args {
* Optional. An array of additional args. Default empty array.
*
* @type bool $in_footer Whether to print the script module in the footer. Only relevant to block themes. Default 'false'. Optional.
* @type 'auto'|'low'|'high' $fetchpriority Fetch priority. Default 'auto'. Optional.
* }
*/
public function enqueue( string $id, string $src = '', array $deps = array(), $version = false, array $args = array() ) {
if ( '' === $id ) {
_doing_it_wrong( __METHOD__, __( 'Non-empty string required for id.' ), '6.9.0' );
return;
}
if ( ! in_array( $id, $this->queue, true ) ) {
$this->queue[] = $id;
}
if ( ! isset( $this->registered[ $id ] ) && $src ) {
$this->register( $id, $src, $deps, $version, $args );
}
}
/**
* Unmarks the script module so it will no longer be enqueued in the page.
*
* @since 6.5.0
*
* @param string $id The identifier of the script module.
*/
public function dequeue( string $id ) {
$this->queue = array_values( array_diff( $this->queue, array( $id ) ) );
}
/**
* Removes a registered script module.
*
* @since 6.5.0
*
* @param string $id The identifier of the script module.
*/
public function deregister( string $id ) {
$this->dequeue( $id );
unset( $this->registered[ $id ] );
}
/**
* Overrides the text domain and path used to load translations for a script module.
*
* This is only needed for modules whose text domain differs from 'default'
* or whose translation files live outside the standard locations, for
* example plugin modules that register their own text domain. Translations
* for modules that use the default domain are loaded automatically by
* {@see WP_Script_Modules::print_script_module_translations()}.
*
* @since 7.0.0
*
* @param string $id The identifier of the script module.
* @param string $domain Optional. Text domain. Default 'default'.
* @param string $path Optional. The full file path to the directory containing translation files.
* @return bool True if the text domain was registered, false if the module is not registered.
*/
public function set_translations( string $id, string $domain = 'default', string $path = '' ): bool {
if ( ! isset( $this->registered[ $id ] ) ) {
return false;
}
$this->registered[ $id ]['textdomain'] = $domain;
$this->registered[ $id ]['translations_path'] = $path;
return true;
}
/**
* Prints translations for all enqueued script modules.
*
* Outputs inline `<script>` tags that call `wp.i18n.setLocaleData()` with
* the translated strings for each script module. This must run before
* the script modules execute.
*
* Auto-detects the text domain and translation path for each module from
* its source URL. Modules whose text domain or path differs from the
* defaults can opt into a specific domain/path via
* {@see WP_Script_Modules::set_translations()}.
*
* @since 7.0.0
*/
public function print_script_module_translations(): void {
// Collect all module IDs that will be on the page (enqueued + their dependencies).
$module_ids = $this->get_sorted_dependencies( $this->queue );
$set_locale_data_js_function = <<<'JS'
( domain, translations ) => {
const localeData = translations.locale_data[ domain ] || translations.locale_data.messages;
localeData[""].domain = domain;
wp.i18n.setLocaleData( localeData, domain );
}
JS;
foreach ( $module_ids as $id ) {
$domain = $this->registered[ $id ]['textdomain'] ?? 'default';
$path = $this->registered[ $id ]['translations_path'] ?? '';
$json_translations = load_script_module_textdomain( $id, $domain, $path );
if ( ! $json_translations ) {
continue;
}
$output = sprintf(
'( %s )( %s, %s );',
$set_locale_data_js_function,
wp_json_encode( $domain, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ),
$json_translations
);
$script_id = "wp-script-module-translation-data-{$id}";
$output .= "\n//# sourceURL=" . rawurlencode( $script_id );
// Ensure wp-i18n is printed; the inline script below relies on wp.i18n.setLocaleData().
if ( ! wp_script_is( 'wp-i18n', 'done' ) ) {
wp_scripts()->do_items( array( 'wp-i18n' ) );
}
wp_print_inline_script_tag( $output, array( 'id' => $script_id ) );
}
}
/**
* Adds the hooks to print the import map, enqueued script modules and script
* module preloads.
*
* In classic themes, the script modules used by the blocks are not yet known
* when the `wp_head` actions is fired, so it needs to print everything in the
* footer.
*
* @since 6.5.0
*/
public function add_hooks() {
$is_block_theme = wp_is_block_theme();
$position = $is_block_theme ? 'wp_head' : 'wp_footer';
add_action( $position, array( $this, 'print_import_map' ) );
if ( $is_block_theme ) {
/*
* Modules can only be printed in the head for block themes because only with
* block themes will import map be fully populated by modules discovered by
* rendering the block template. In classic themes, modules are enqueued during
* template rendering, thus the import map must be printed in the footer,
* followed by all enqueued modules.
*/
add_action( 'wp_head', array( $this, 'print_head_enqueued_script_modules' ) );
}
add_action( 'wp_footer', array( $this, 'print_enqueued_script_modules' ) );
add_action( $position, array( $this, 'print_script_module_preloads' ) );
add_action( 'admin_print_footer_scripts', array( $this, 'print_import_map' ), 9 );
add_action( 'admin_print_footer_scripts', array( $this, 'print_enqueued_script_modules' ) );
add_action( 'admin_print_footer_scripts', array( $this, 'print_script_module_preloads' ) );
/*
* Print translations after classic scripts like wp-i18n are loaded (at
* priority 10 via _wp_footer_scripts), but before the script modules
* execute. Script modules with type="module" are deferred by default,
* so inline translation scripts at priority 11 will execute before them.
*/
add_action( 'wp_footer', array( $this, 'print_script_module_translations' ), 21 );
add_action( 'admin_print_footer_scripts', array( $this, 'print_script_module_translations' ), 11 );
add_action( 'wp_footer', array( $this, 'print_script_module_data' ) );
add_action( 'admin_print_footer_scripts', array( $this, 'print_script_module_data' ) );
add_action( 'wp_footer', array( $this, 'print_a11y_script_module_html' ), 20 );
add_action( 'admin_print_footer_scripts', array( $this, 'print_a11y_script_module_html' ), 20 );
}
/**
* Gets the highest fetch priority for the provided script IDs.
*
* @since 6.9.0
*
* @param string[] $ids Script module IDs.
* @return 'auto'|'low'|'high' Highest fetch priority for the provided script module IDs.
*/
private function get_highest_fetchpriority( array $ids ): string {
static $high_priority_index = null;
if ( null === $high_priority_index ) {
$high_priority_index = count( $this->priorities ) - 1;
}
$highest_priority_index = 0;
foreach ( $ids as $id ) {
if ( isset( $this->registered[ $id ] ) ) {
$highest_priority_index = (int) max(
$highest_priority_index,
(int) array_search( $this->registered[ $id ]['fetchpriority'], $this->priorities, true )
);
if ( $high_priority_index === $highest_priority_index ) {
break;
}
}
}
return $this->priorities[ $highest_priority_index ];
}
/**
* Prints the enqueued script modules in head.
*
* This is only used in block themes.
*
* @since 6.9.0
*/
public function print_head_enqueued_script_modules() {
foreach ( $this->get_sorted_dependencies( $this->queue ) as $id ) {
if (
isset( $this->registered[ $id ] ) &&
! $this->registered[ $id ]['in_footer']
) {
// If any dependency is set to be printed in footer, skip printing this module in head.
$dependencies = array_keys( $this->get_dependencies( array( $id ) ) );
foreach ( $dependencies as $dependency_id ) {
if (
in_array( $dependency_id, $this->queue, true ) &&
isset( $this->registered[ $dependency_id ] ) &&
$this->registered[ $dependency_id ]['in_footer']
) {
continue 2;
}
}
$this->print_script_module( $id );
}
}
}
/**
* Prints the enqueued script modules in footer.
*
* @since 6.5.0
*/
public function print_enqueued_script_modules() {
foreach ( $this->get_sorted_dependencies( $this->queue ) as $id ) {
$this->print_script_module( $id );
}
}
/**
* Prints the enqueued script module using script tags with type="module"
* attributes.
*
* @since 6.9.0
*
* @param string $id The script module identifier.
*/
private function print_script_module( string $id ) {
if ( in_array( $id, $this->done, true ) || ! in_array( $id, $this->queue, true ) ) {
return;
}
$this->done[] = $id;
$src = $this->get_src( $id );
if ( '' === $src ) {
return;
}
$attributes = array(
'type' => 'module',
'src' => $src,
'id' => $id . '-js-module',
);
$script_module = $this->registered[ $id ];
$queued_dependents = array_intersect( $this->queue, $this->get_recursive_dependents( $id ) );
$fetchpriority = $this->get_highest_fetchpriority( array_merge( array( $id ), $queued_dependents ) );
if ( 'auto' !== $fetchpriority ) {
$attributes['fetchpriority'] = $fetchpriority;
}
if ( $fetchpriority !== $script_module['fetchpriority'] ) {
$attributes['data-wp-fetchpriority'] = $script_module['fetchpriority'];
}
wp_print_script_tag( $attributes );
}
/**
* Prints the static dependencies of the enqueued script modules using
* link tags with rel="modulepreload" attributes.
*
* If a script module is marked for enqueue, it will not be preloaded.
*
* @since 6.5.0
*/
public function print_script_module_preloads() {
$dependency_ids = $this->get_sorted_dependencies( $this->queue, array( 'static' ) );
foreach ( $dependency_ids as $id ) {
// Don't preload if it's marked for enqueue.
if ( in_array( $id, $this->queue, true ) ) {
continue;
}
$src = $this->get_src( $id );
if ( '' === $src ) {
continue;
}
$enqueued_dependents = array_intersect( $this->get_recursive_dependents( $id ), $this->queue );
$highest_fetchpriority = $this->get_highest_fetchpriority( $enqueued_dependents );
printf(
'<link rel="modulepreload" href="%s" id="%s"',
esc_url( $src ),
esc_attr( $id . '-js-modulepreload' )
);
if ( 'auto' !== $highest_fetchpriority ) {
printf( ' fetchpriority="%s"', esc_attr( $highest_fetchpriority ) );
}
if ( $highest_fetchpriority !== $this->registered[ $id ]['fetchpriority'] && 'auto' !== $this->registered[ $id ]['fetchpriority'] ) {
printf( ' data-wp-fetchpriority="%s"', esc_attr( $this->registered[ $id ]['fetchpriority'] ) );
}
echo ">\n";
}
}
/**
* Prints the import map using a script tag with a type="importmap" attribute.
*
* @since 6.5.0
*/
public function print_import_map() {
$import_map = $this->get_import_map();
if ( ! empty( $import_map['imports'] ) ) {
wp_print_inline_script_tag(
(string) wp_json_encode( $import_map, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ),
array(
'type' => 'importmap',
'id' => 'wp-importmap',
)
);
}
}
/**
* Returns the import map array.
*
* @since 6.5.0
* @since 7.0.0 Script module dependencies ('module_dependencies') of classic scripts are now included.
*
* @global WP_Scripts $wp_scripts
*
* @return array<string, array<string, string>> Array with an `imports` key mapping to an array of script module
* identifiers and their respective URLs, including the version query.
*/
private function get_import_map(): array {
global $wp_scripts;
$imports = array();
// Identify script modules that are dependencies of classic scripts.
$classic_script_module_dependencies = array();
if ( $wp_scripts instanceof WP_Scripts ) {
$handles = array_merge(
$wp_scripts->queue,
$wp_scripts->to_do,
$wp_scripts->done
);
$processed = array();
while ( ! empty( $handles ) ) {
$handle = array_pop( $handles );
if ( isset( $processed[ $handle ] ) || ! isset( $wp_scripts->registered[ $handle ] ) ) {
continue;
}
$processed[ $handle ] = true;
$module_dependencies = $wp_scripts->get_data( $handle, 'module_dependencies' );
if ( is_array( $module_dependencies ) ) {
$missing_module_dependencies = array();
foreach ( $module_dependencies as $module ) {
if ( is_string( $module ) ) {
$id = $module;
} elseif ( is_array( $module ) && isset( $module['id'] ) && is_string( $module['id'] ) ) {
$id = $module['id'];
} else {
// Invalid module dependency was supplied by direct manipulation of the extra data.
// Normally, this error scenario would be caught when WP_Scripts::add_data() is called.
continue;
}
if ( ! isset( $this->registered[ $id ] ) ) {
$missing_module_dependencies[] = $id;
} else {
$classic_script_module_dependencies[] = $id;
}
}
if ( count( $missing_module_dependencies ) > 0 ) {
_doing_it_wrong(
'WP_Scripts::add_data',
sprintf(
/* translators: 1: Script handle, 2: 'module_dependencies', 3: List of missing dependency IDs. */
__( 'The script with the handle "%1$s" was enqueued with script module dependencies ("%2$s") that are not registered: %3$s.' ),
$handle,
'module_dependencies',
implode( wp_get_list_item_separator(), $missing_module_dependencies )
),
'7.0.0'
);
}
}
foreach ( $wp_scripts->registered[ $handle ]->deps as $dep ) {
if ( ! isset( $processed[ $dep ] ) ) {
$handles[] = $dep;
}
}
}
}
// Note: the script modules in $this->queue are not included in the importmap because they get printed as scripts.
$ids = array_unique(
array_merge(
$classic_script_module_dependencies,
array_keys( $this->get_dependencies( array_merge( $this->queue, $classic_script_module_dependencies ) ) )
)
);
foreach ( $ids as $id ) {
$src = $this->get_src( $id );
if ( '' !== $src ) {
$imports[ $id ] = $src;
}
}
return array( 'imports' => $imports );
}
/**
* Retrieves the list of script modules marked for enqueue.
*
* Even though this is a private method and is unused in core, there are ecosystem plugins accessing it via the
* Reflection API. The ecosystem should rather use {@see self::get_queue()}.
*
* @since 6.5.0
*
* @return array<string, array<string, mixed>> Script modules marked for enqueue, keyed by script module identifier.
* @phpstan-return array<string, ScriptModule>
*/
private function get_marked_for_enqueue(): array {
return wp_array_slice_assoc(
$this->registered,
$this->queue
);
}
/**
* Retrieves all the dependencies for the given script module identifiers, filtered by import types.
*
* It will consolidate an array containing a set of unique dependencies based
* on the requested import types: 'static', 'dynamic', or both. This method is
* recursive and also retrieves dependencies of the dependencies.
*
* @since 6.5.0
*
* @param string[] $ids The identifiers of the script modules for which to gather dependencies.
* @param string[] $import_types Optional. Import types of dependencies to retrieve: 'static', 'dynamic', or both.
* Default is both.
* @return array<string, array<string, mixed>> List of dependencies, keyed by script module identifier.
* @phpstan-return array<string, ScriptModule>
*/
private function get_dependencies( array $ids, array $import_types = array( 'static', 'dynamic' ) ): array {
$all_dependencies = array();
$id_queue = $ids;
while ( ! empty( $id_queue ) ) {
$id = array_shift( $id_queue );
if ( ! isset( $this->registered[ $id ] ) ) {
continue;
}
foreach ( $this->registered[ $id ]['dependencies'] as $dependency ) {
if (
! isset( $all_dependencies[ $dependency['id'] ] ) &&
in_array( $dependency['import'], $import_types, true ) &&
isset( $this->registered[ $dependency['id'] ] )
) {
$all_dependencies[ $dependency['id'] ] = $this->registered[ $dependency['id'] ];
// Add this dependency to the list to get dependencies for.
$id_queue[] = $dependency['id'];
}
}
}
return $all_dependencies;
}
/**
* Gets all dependents of a script module.
*
* This is not recursive.
*
* @since 6.9.0
*
* @see WP_Scripts::get_dependents()
*
* @param string $id The script ID.
* @return string[] Script module IDs.
*/
private function get_dependents( string $id ): array {
// Check if dependents map for the handle in question is present. If so, use it.
if ( isset( $this->dependents_map[ $id ] ) ) {
return $this->dependents_map[ $id ];
}
$dependents = array();
// Iterate over all registered scripts, finding dependents of the script passed to this method.
foreach ( $this->registered as $registered_id => $args ) {
if ( in_array( $id, wp_list_pluck( $args['dependencies'], 'id' ), true ) ) {
$dependents[] = $registered_id;
}
}
// Add the module's dependents to the map to ease future lookups.
$this->dependents_map[ $id ] = $dependents;
return $dependents;
}
/**
* Gets all recursive dependents of a script module.
*
* @since 6.9.0
*
* @see WP_Scripts::get_dependents()
*
* @param string $id The script ID.
* @return string[] Script module IDs.
*/
private function get_recursive_dependents( string $id ): array {
$dependents = array();
$id_queue = array( $id );
$processed = array();
while ( ! empty( $id_queue ) ) {
$current_id = array_shift( $id_queue );
// Skip unregistered or already-processed script modules.
if ( ! isset( $this->registered[ $current_id ] ) || isset( $processed[ $current_id ] ) ) {
continue;
}
// Mark as processed to guard against infinite loops from circular dependencies.
$processed[ $current_id ] = true;
// Find the direct dependents of the current script.
foreach ( $this->get_dependents( $current_id ) as $dependent_id ) {
// Only add the dependent if we haven't found it before.
if ( ! isset( $dependents[ $dependent_id ] ) ) {
$dependents[ $dependent_id ] = true;
// Add dependency to the queue.
$id_queue[] = $dependent_id;
}
}
}
return array_keys( $dependents );
}
/**
* Sorts the given script module identifiers based on their dependencies.
*
* It will return a list of script module identifiers sorted in the order
* they should be printed, so that dependencies are printed before the script
* modules that depend on them.
*
* @since 6.9.0
*
* @param string[] $ids The identifiers of the script modules to sort.
* @param string[] $import_types Optional. Import types of dependencies to retrieve: 'static', 'dynamic', or both.
* Default is both.
* @return string[] Sorted list of script module identifiers.
*/
private function get_sorted_dependencies( array $ids, array $import_types = array( 'static', 'dynamic' ) ): array {
$sorted = array();
foreach ( $ids as $id ) {
$this->sort_item_dependencies( $id, $import_types, $sorted );
}
return array_unique( $sorted );
}
/**
* Recursively sorts the dependencies for a single script module identifier.
*
* @since 6.9.0
*
* @param string $id The identifier of the script module to sort.
* @param string[] $import_types Optional. Import types of dependencies to retrieve: 'static', 'dynamic', or both.
* @param string[] &$sorted The array of sorted identifiers, passed by reference.
* @return bool True on success, false on failure (e.g., missing dependency).
*/
private function sort_item_dependencies( string $id, array $import_types, array &$sorted ): bool {
// If already processed, don't do it again.
if ( in_array( $id, $sorted, true ) ) {
return true;
}
// If the item doesn't exist, fail.
if ( ! isset( $this->registered[ $id ] ) ) {
return false;
}
$dependency_ids = array();
foreach ( $this->registered[ $id ]['dependencies'] as $dependency ) {
if ( in_array( $dependency['import'], $import_types, true ) ) {
$dependency_ids[] = $dependency['id'];
}
}
// If the item requires dependencies that do not exist, fail.
$missing_dependencies = array_diff( $dependency_ids, array_keys( $this->registered ) );
if ( count( $missing_dependencies ) > 0 ) {
if ( ! in_array( $id, $this->modules_with_missing_dependencies, true ) ) {
_doing_it_wrong(
get_class( $this ) . '::register',
sprintf(
/* translators: 1: Script module ID, 2: List of missing dependency IDs. */
__( 'The script module with the ID "%1$s" was enqueued with dependencies that are not registered: %2$s.' ),
$id,
implode( wp_get_list_item_separator(), $missing_dependencies )
),
'6.9.1'
);
$this->modules_with_missing_dependencies[] = $id;
}
return false;
}
// Recursively process dependencies.
foreach ( $dependency_ids as $dependency_id ) {
if ( ! $this->sort_item_dependencies( $dependency_id, $import_types, $sorted ) ) {
// A dependency failed to resolve, so this branch fails.
return false;
}
}
// All dependencies are sorted, so we can now add the current item.
$sorted[] = $id;
return true;
}
/**
* Gets the data for a registered script module.
*
* @since 7.0.0
*
* @param string $id The script module identifier.
* @return array|null The script module data, or null if not registered.
* @phpstan-return ScriptModule|null
*/
public function get_registered( string $id ): ?array {
return $this->registered[ $id ] ?? null;
}
/**
* Gets the versioned URL for a script module src.
*
* If $version is set to false, the version number is the currently installed
* WordPress version. If $version is set to null, no version is added.
* Otherwise, the string passed in $version is used.
*
* @since 6.5.0
*
* @param string $id The script module identifier.
* @return string The script module src with a version if relevant.
*/
private function get_src( string $id ): string {
if ( ! isset( $this->registered[ $id ] ) ) {
return '';
}
$script_module = $this->registered[ $id ];
$src = $script_module['src'];
if ( '' !== $src ) {
if ( false === $script_module['version'] ) {
$src = add_query_arg( 'ver', get_bloginfo( 'version' ), $src );
} elseif ( null !== $script_module['version'] ) {
$src = add_query_arg( 'ver', $script_module['version'], $src );
}
}
/**
* Filters the script module source.
*
* @since 6.5.0
*
* @param string $src Module source URL.
* @param string $id Module identifier.
*/
$src = apply_filters( 'script_module_loader_src', $src, $id );
if ( ! is_string( $src ) ) {
$src = '';
}
return $src;
}
/**
* Print data associated with Script Modules.
*
* The data will be embedded in the page HTML and can be read by Script Modules on page load.
*
* @since 6.7.0
*
* Data can be associated with a Script Module via the
* {@see "script_module_data_{$module_id}"} filter.
*
* The data for a Script Module will be serialized as JSON in a script tag with an ID of the
* form `wp-script-module-data-{$module_id}`.
*/
public function print_script_module_data(): void {
$modules = array();
foreach ( array_unique( $this->queue ) as $id ) {
if ( '@wordpress/a11y' === $id ) {
$this->a11y_available = true;
}
$modules[ $id ] = true;
}
foreach ( array_keys( $this->get_import_map()['imports'] ) as $id ) {
if ( '@wordpress/a11y' === $id ) {
$this->a11y_available = true;
}
$modules[ $id ] = true;
}
foreach ( array_keys( $modules ) as $module_id ) {
/**
* Filters data associated with a given Script Module.
*
* Script Modules may require data that is required for initialization or is essential
* to have immediately available on page load. These are suitable use cases for
* this data.
*
* The dynamic portion of the hook name, `$module_id`, refers to the Script Module ID
* that the data is associated with.
*
* This is best suited to pass essential data that must be available to the module for
* initialization or immediately on page load. It does not replace the REST API or
* fetching data from the client.
*
* Example:
*
* add_filter(
* 'script_module_data_MyScriptModuleID',
* function ( array $data ): array {
* $data['dataForClient'] = 'ok';
* return $data;
* }
* );
*
* If the filter returns no data (an empty array), nothing will be embedded in the page.
*
* The data for a given Script Module, if provided, will be JSON serialized in a script
* tag with an ID of the form `wp-script-module-data-{$module_id}`.
*
* The data can be read on the client with a pattern like the following; you are encouraged
* to use this pattern _verbatim_ to avoid common pitfalls or vulnerabilities:
*
* Example:
*
* const dataContainer = document.querySelector( 'script[id="wp-script-module-data-MyScriptModuleID"]' );
* let data = {};
* if ( dataContainer instanceof HTMLScriptElement ) {
* try {
* data = JSON.parse( dataContainer.text );
* } catch {}
* }
* // data.dataForClient === 'ok';
* initMyScriptModuleWithData( data );
*
* @since 6.7.0
*
* @param array $data The data associated with the Script Module.
*/
$data = apply_filters( "script_module_data_{$module_id}", array() );
if ( is_array( $data ) && array() !== $data ) {
/*
* This data will be printed as JSON inside a script tag like this:
* <script type="application/json"></script>
*
* A script tag must be closed by a sequence beginning with `</`. It's impossible to
* close a script tag without using `<`. We ensure that `<` is escaped and `/` can
* remain unescaped, so `</script>` will be printed as `\u003C/script\u00E3`.
*
* - JSON_HEX_TAG: All < and > are converted to \u003C and \u003E.
* - JSON_UNESCAPED_SLASHES: Don't escape /.
*
* If the page will use UTF-8 encoding, it's safe to print unescaped unicode:
*
* - JSON_UNESCAPED_UNICODE: Encode multibyte Unicode characters literally (instead of as `\uXXXX`).
* - JSON_UNESCAPED_LINE_TERMINATORS: The line terminators are kept unescaped when
* JSON_UNESCAPED_UNICODE is supplied. It uses the same behaviour as it was
* before PHP 7.1 without this constant. Available as of PHP 7.1.0.
*
* The JSON specification requires encoding in UTF-8, so if the generated HTML page
* is not encoded in UTF-8 then it's not safe to include those literals. They must
* be escaped to avoid encoding issues.
*
* @see https://www.rfc-editor.org/rfc/rfc8259.html for details on encoding requirements.
* @see https://www.php.net/manual/en/json.constants.php for details on these constants.
* @see https://html.spec.whatwg.org/#script-data-state for details on script tag parsing.
*/
$json_encode_flags = JSON_HEX_TAG | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_LINE_TERMINATORS;
if ( ! is_utf8_charset() ) {
$json_encode_flags = JSON_HEX_TAG | JSON_UNESCAPED_SLASHES;
}
wp_print_inline_script_tag(
(string) wp_json_encode(
$data,
$json_encode_flags
),
array(
'type' => 'application/json',
'id' => "wp-script-module-data-{$module_id}",
)
);
}
}
}
/**
* @access private This is only intended to be called by the registered actions.
*
* @since 6.7.0
*/
public function print_a11y_script_module_html() {
if ( ! $this->a11y_available ) {
return;
}
echo '<div style="position:absolute;margin:-1px;padding:0;height:1px;width:1px;overflow:hidden;clip-path:inset(50%);border:0;word-wrap:normal !important;">'
. '<p id="a11y-speak-intro-text" class="a11y-speak-intro-text" hidden>' . esc_html__( 'Notifications' ) . '</p>'
. '<div id="a11y-speak-assertive" class="a11y-speak-region" aria-live="assertive" aria-relevant="additions text" aria-atomic="true"></div>'
. '<div id="a11y-speak-polite" class="a11y-speak-region" aria-live="polite" aria-relevant="additions text" aria-atomic="true"></div>'
. '</div>';
}
}
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