--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/class-wp-dependencies.php Fri Sep 05 18:40:08 2025 +0200
@@ -0,0 +1,493 @@
+<?php
+/**
+ * Dependencies API: WP_Dependencies base class
+ *
+ * @since 2.6.0
+ *
+ * @package WordPress
+ * @subpackage Dependencies
+ */
+
+/**
+ * Core base class extended to register items.
+ *
+ * @since 2.6.0
+ *
+ * @see _WP_Dependency
+ */
+#[AllowDynamicProperties]
+class WP_Dependencies {
+ /**
+ * An array of all registered dependencies keyed by handle.
+ *
+ * @since 2.6.8
+ *
+ * @var _WP_Dependency[]
+ */
+ public $registered = array();
+
+ /**
+ * An array of handles of queued dependencies.
+ *
+ * @since 2.6.8
+ *
+ * @var string[]
+ */
+ public $queue = array();
+
+ /**
+ * An array of handles of dependencies to queue.
+ *
+ * @since 2.6.0
+ *
+ * @var string[]
+ */
+ public $to_do = array();
+
+ /**
+ * An array of handles of dependencies already queued.
+ *
+ * @since 2.6.0
+ *
+ * @var string[]
+ */
+ public $done = array();
+
+ /**
+ * An array of additional arguments passed when a handle is registered.
+ *
+ * Arguments are appended to the item query string.
+ *
+ * @since 2.6.0
+ *
+ * @var array
+ */
+ public $args = array();
+
+ /**
+ * An array of dependency groups to enqueue.
+ *
+ * Each entry is keyed by handle and represents the integer group level or boolean
+ * false if the handle has no group.
+ *
+ * @since 2.8.0
+ *
+ * @var (int|false)[]
+ */
+ public $groups = array();
+
+ /**
+ * A handle group to enqueue.
+ *
+ * @since 2.8.0
+ *
+ * @deprecated 4.5.0
+ * @var int
+ */
+ public $group = 0;
+
+ /**
+ * Cached lookup array of flattened queued items and dependencies.
+ *
+ * @since 5.4.0
+ *
+ * @var array
+ */
+ private $all_queued_deps;
+
+ /**
+ * List of assets enqueued before details were registered.
+ *
+ * @since 5.9.0
+ *
+ * @var array
+ */
+ private $queued_before_register = array();
+
+ /**
+ * Processes the items and dependencies.
+ *
+ * Processes the items passed to it or the queue, and their dependencies.
+ *
+ * @since 2.6.0
+ * @since 2.8.0 Added the `$group` parameter.
+ *
+ * @param string|string[]|false $handles Optional. Items to be processed: queue (false),
+ * single item (string), or multiple items (array of strings).
+ * Default false.
+ * @param int|false $group Optional. Group level: level (int), no group (false).
+ * @return string[] Array of handles of items that have been processed.
+ */
+ public function do_items( $handles = false, $group = false ) {
+ /*
+ * If nothing is passed, print the queue. If a string is passed,
+ * print that item. If an array is passed, print those items.
+ */
+ $handles = false === $handles ? $this->queue : (array) $handles;
+ $this->all_deps( $handles );
+
+ foreach ( $this->to_do as $key => $handle ) {
+ if ( ! in_array( $handle, $this->done, true ) && isset( $this->registered[ $handle ] ) ) {
+ /*
+ * Attempt to process the item. If successful,
+ * add the handle to the done array.
+ *
+ * Unset the item from the to_do array.
+ */
+ if ( $this->do_item( $handle, $group ) ) {
+ $this->done[] = $handle;
+ }
+
+ unset( $this->to_do[ $key ] );
+ }
+ }
+
+ return $this->done;
+ }
+
+ /**
+ * Processes a dependency.
+ *
+ * @since 2.6.0
+ * @since 5.5.0 Added the `$group` parameter.
+ *
+ * @param string $handle Name of the item. Should be unique.
+ * @param int|false $group Optional. Group level: level (int), no group (false).
+ * Default false.
+ * @return bool True on success, false if not set.
+ */
+ public function do_item( $handle, $group = false ) {
+ return isset( $this->registered[ $handle ] );
+ }
+
+ /**
+ * Determines dependencies.
+ *
+ * Recursively builds an array of items to process taking
+ * dependencies into account. Does NOT catch infinite loops.
+ *
+ * @since 2.1.0
+ * @since 2.6.0 Moved from `WP_Scripts`.
+ * @since 2.8.0 Added the `$group` parameter.
+ *
+ * @param string|string[] $handles Item handle (string) or item handles (array of strings).
+ * @param bool $recursion Optional. Internal flag that function is calling itself.
+ * Default false.
+ * @param int|false $group Optional. Group level: level (int), no group (false).
+ * Default false.
+ * @return bool True on success, false on failure.
+ */
+ public function all_deps( $handles, $recursion = false, $group = false ) {
+ $handles = (array) $handles;
+ if ( ! $handles ) {
+ return false;
+ }
+
+ foreach ( $handles as $handle ) {
+ $handle_parts = explode( '?', $handle );
+ $handle = $handle_parts[0];
+ $queued = in_array( $handle, $this->to_do, true );
+
+ if ( in_array( $handle, $this->done, true ) ) { // Already done.
+ continue;
+ }
+
+ $moved = $this->set_group( $handle, $recursion, $group );
+ $new_group = $this->groups[ $handle ];
+
+ if ( $queued && ! $moved ) { // Already queued and in the right group.
+ continue;
+ }
+
+ $keep_going = true;
+ if ( ! isset( $this->registered[ $handle ] ) ) {
+ $keep_going = false; // Item doesn't exist.
+ } elseif ( $this->registered[ $handle ]->deps && array_diff( $this->registered[ $handle ]->deps, array_keys( $this->registered ) ) ) {
+ $keep_going = false; // Item requires dependencies that don't exist.
+ } elseif ( $this->registered[ $handle ]->deps && ! $this->all_deps( $this->registered[ $handle ]->deps, true, $new_group ) ) {
+ $keep_going = false; // Item requires dependencies that don't exist.
+ }
+
+ if ( ! $keep_going ) { // Either item or its dependencies don't exist.
+ if ( $recursion ) {
+ return false; // Abort this branch.
+ } else {
+ continue; // We're at the top level. Move on to the next one.
+ }
+ }
+
+ if ( $queued ) { // Already grabbed it and its dependencies.
+ continue;
+ }
+
+ if ( isset( $handle_parts[1] ) ) {
+ $this->args[ $handle ] = $handle_parts[1];
+ }
+
+ $this->to_do[] = $handle;
+ }
+
+ return true;
+ }
+
+ /**
+ * Register an item.
+ *
+ * Registers the item if no item of that name already exists.
+ *
+ * @since 2.1.0
+ * @since 2.6.0 Moved from `WP_Scripts`.
+ *
+ * @param string $handle Name of the item. Should be unique.
+ * @param string|false $src Full URL of the item, or path of the item relative
+ * to the WordPress root directory. If source is set to false,
+ * the item is an alias of other items it depends on.
+ * @param string[] $deps Optional. An array of registered item handles this item depends on.
+ * Default empty array.
+ * @param string|bool|null $ver Optional. String specifying item version number, if it has one,
+ * which is added to the URL as a query string for cache busting purposes.
+ * If version is set to false, a version number is automatically added
+ * equal to current installed WordPress version.
+ * If set to null, no version is added.
+ * @param mixed $args Optional. Custom property of the item. NOT the class property $args.
+ * Examples: $media, $in_footer.
+ * @return bool Whether the item has been registered. True on success, false on failure.
+ */
+ public function add( $handle, $src, $deps = array(), $ver = false, $args = null ) {
+ if ( isset( $this->registered[ $handle ] ) ) {
+ return false;
+ }
+ $this->registered[ $handle ] = new _WP_Dependency( $handle, $src, $deps, $ver, $args );
+
+ // If the item was enqueued before the details were registered, enqueue it now.
+ if ( array_key_exists( $handle, $this->queued_before_register ) ) {
+ if ( ! is_null( $this->queued_before_register[ $handle ] ) ) {
+ $this->enqueue( $handle . '?' . $this->queued_before_register[ $handle ] );
+ } else {
+ $this->enqueue( $handle );
+ }
+
+ unset( $this->queued_before_register[ $handle ] );
+ }
+
+ return true;
+ }
+
+ /**
+ * Add extra item data.
+ *
+ * Adds data to a registered item.
+ *
+ * @since 2.6.0
+ *
+ * @param string $handle Name of the item. Should be unique.
+ * @param string $key The data key.
+ * @param mixed $value The data value.
+ * @return bool True on success, false on failure.
+ */
+ public function add_data( $handle, $key, $value ) {
+ if ( ! isset( $this->registered[ $handle ] ) ) {
+ return false;
+ }
+
+ return $this->registered[ $handle ]->add_data( $key, $value );
+ }
+
+ /**
+ * Get extra item data.
+ *
+ * Gets data associated with a registered item.
+ *
+ * @since 3.3.0
+ *
+ * @param string $handle Name of the item. Should be unique.
+ * @param string $key The data key.
+ * @return mixed Extra item data (string), false otherwise.
+ */
+ public function get_data( $handle, $key ) {
+ if ( ! isset( $this->registered[ $handle ] ) ) {
+ return false;
+ }
+
+ if ( ! isset( $this->registered[ $handle ]->extra[ $key ] ) ) {
+ return false;
+ }
+
+ return $this->registered[ $handle ]->extra[ $key ];
+ }
+
+ /**
+ * Un-register an item or items.
+ *
+ * @since 2.1.0
+ * @since 2.6.0 Moved from `WP_Scripts`.
+ *
+ * @param string|string[] $handles Item handle (string) or item handles (array of strings).
+ */
+ public function remove( $handles ) {
+ foreach ( (array) $handles as $handle ) {
+ unset( $this->registered[ $handle ] );
+ }
+ }
+
+ /**
+ * Queue an item or items.
+ *
+ * Decodes handles and arguments, then queues handles and stores
+ * arguments in the class property $args. For example in extending
+ * classes, $args is appended to the item url as a query string.
+ * Note $args is NOT the $args property of items in the $registered array.
+ *
+ * @since 2.1.0
+ * @since 2.6.0 Moved from `WP_Scripts`.
+ *
+ * @param string|string[] $handles Item handle (string) or item handles (array of strings).
+ */
+ public function enqueue( $handles ) {
+ foreach ( (array) $handles as $handle ) {
+ $handle = explode( '?', $handle );
+
+ if ( ! in_array( $handle[0], $this->queue, true ) && isset( $this->registered[ $handle[0] ] ) ) {
+ $this->queue[] = $handle[0];
+
+ // Reset all dependencies so they must be recalculated in recurse_deps().
+ $this->all_queued_deps = null;
+
+ if ( isset( $handle[1] ) ) {
+ $this->args[ $handle[0] ] = $handle[1];
+ }
+ } elseif ( ! isset( $this->registered[ $handle[0] ] ) ) {
+ $this->queued_before_register[ $handle[0] ] = null; // $args
+
+ if ( isset( $handle[1] ) ) {
+ $this->queued_before_register[ $handle[0] ] = $handle[1];
+ }
+ }
+ }
+ }
+
+ /**
+ * Dequeue an item or items.
+ *
+ * Decodes handles and arguments, then dequeues handles
+ * and removes arguments from the class property $args.
+ *
+ * @since 2.1.0
+ * @since 2.6.0 Moved from `WP_Scripts`.
+ *
+ * @param string|string[] $handles Item handle (string) or item handles (array of strings).
+ */
+ public function dequeue( $handles ) {
+ foreach ( (array) $handles as $handle ) {
+ $handle = explode( '?', $handle );
+ $key = array_search( $handle[0], $this->queue, true );
+
+ if ( false !== $key ) {
+ // Reset all dependencies so they must be recalculated in recurse_deps().
+ $this->all_queued_deps = null;
+
+ unset( $this->queue[ $key ] );
+ unset( $this->args[ $handle[0] ] );
+ } elseif ( array_key_exists( $handle[0], $this->queued_before_register ) ) {
+ unset( $this->queued_before_register[ $handle[0] ] );
+ }
+ }
+ }
+
+ /**
+ * Recursively search the passed dependency tree for a handle.
+ *
+ * @since 4.0.0
+ *
+ * @param string[] $queue An array of queued _WP_Dependency handles.
+ * @param string $handle Name of the item. Should be unique.
+ * @return bool Whether the handle is found after recursively searching the dependency tree.
+ */
+ protected function recurse_deps( $queue, $handle ) {
+ if ( isset( $this->all_queued_deps ) ) {
+ return isset( $this->all_queued_deps[ $handle ] );
+ }
+
+ $all_deps = array_fill_keys( $queue, true );
+ $queues = array();
+ $done = array();
+
+ while ( $queue ) {
+ foreach ( $queue as $queued ) {
+ if ( ! isset( $done[ $queued ] ) && isset( $this->registered[ $queued ] ) ) {
+ $deps = $this->registered[ $queued ]->deps;
+ if ( $deps ) {
+ $all_deps += array_fill_keys( $deps, true );
+ array_push( $queues, $deps );
+ }
+ $done[ $queued ] = true;
+ }
+ }
+ $queue = array_pop( $queues );
+ }
+
+ $this->all_queued_deps = $all_deps;
+
+ return isset( $this->all_queued_deps[ $handle ] );
+ }
+
+ /**
+ * Query the list for an item.
+ *
+ * @since 2.1.0
+ * @since 2.6.0 Moved from `WP_Scripts`.
+ *
+ * @param string $handle Name of the item. Should be unique.
+ * @param string $status Optional. Status of the item to query. Default 'registered'.
+ * @return bool|_WP_Dependency Found, or object Item data.
+ */
+ public function query( $handle, $status = 'registered' ) {
+ switch ( $status ) {
+ case 'registered':
+ case 'scripts': // Back compat.
+ if ( isset( $this->registered[ $handle ] ) ) {
+ return $this->registered[ $handle ];
+ }
+ return false;
+
+ case 'enqueued':
+ case 'queue': // Back compat.
+ if ( in_array( $handle, $this->queue, true ) ) {
+ return true;
+ }
+ return $this->recurse_deps( $this->queue, $handle );
+
+ case 'to_do':
+ case 'to_print': // Back compat.
+ return in_array( $handle, $this->to_do, true );
+
+ case 'done':
+ case 'printed': // Back compat.
+ return in_array( $handle, $this->done, true );
+ }
+
+ return false;
+ }
+
+ /**
+ * Set item group, unless already in a lower group.
+ *
+ * @since 2.8.0
+ *
+ * @param string $handle Name of the item. Should be unique.
+ * @param bool $recursion Internal flag that calling function was called recursively.
+ * @param int|false $group Group level: level (int), no group (false).
+ * @return bool Not already in the group or a lower group.
+ */
+ public function set_group( $handle, $recursion, $group ) {
+ $group = (int) $group;
+
+ if ( isset( $this->groups[ $handle ] ) && $this->groups[ $handle ] <= $group ) {
+ return false;
+ }
+
+ $this->groups[ $handle ] = $group;
+
+ return true;
+ }
+}