<?php
/**
- * BackPress Scripts enqueue.
+ * Dependencies API: WP_Dependencies base class
*
- * These classes were refactored from the WordPress WP_Scripts and WordPress
- * script enqueue API.
+ * @since 2.6.0
*
- * @package BackPress
- * @since r74
+ * @package WordPress
+ * @subpackage Dependencies
*/
/**
- * BackPress enqueued dependiences class.
+ * Core base class extended to register items.
*
- * @package BackPress
+ * @package WordPress
+ * @since 2.6.0
* @uses _WP_Dependency
- * @since r74
*/
class WP_Dependencies {
- var $registered = array();
- var $queue = array();
- var $to_do = array();
- var $done = array();
- var $args = array();
- var $groups = array();
- var $group = 0;
-
- function WP_Dependencies() {
- $args = func_get_args();
- call_user_func_array( array(&$this, '__construct'), $args );
- }
+ /**
+ * An array of registered handle objects.
+ *
+ * @access public
+ * @since 2.6.8
+ * @var array
+ */
+ public $registered = array();
- function __construct() {}
+ /**
+ * An array of queued _WP_Dependency handle objects.
+ *
+ * @access public
+ * @since 2.6.8
+ * @var array
+ */
+ public $queue = array();
/**
- * Do the dependencies
+ * An array of _WP_Dependency handle objects to queue.
*
- * Process the items passed to it or the queue. Processes all dependencies.
+ * @access public
+ * @since 2.6.0
+ * @var array
+ */
+ public $to_do = array();
+
+ /**
+ * An array of _WP_Dependency handle objects already queued.
*
- * @param mixed handles (optional) items to be processed. (void) processes queue, (string) process that item, (array of strings) process those items
- * @return array Items that have been processed
+ * @access public
+ * @since 2.6.0
+ * @var array
*/
- function do_items( $handles = false, $group = false ) {
- // Print the queue if nothing is passed. If a string is passed, print that script. If an array is passed, print those scripts.
- $handles = false === $handles ? $this->queue : (array) $handles;
- $this->all_deps( $handles );
+ public $done = array();
- foreach( $this->to_do as $key => $handle ) {
- if ( !in_array($handle, $this->done) && isset($this->registered[$handle]) ) {
+ /**
+ * An array of additional arguments passed when a handle is registered.
+ *
+ * Arguments are appended to the item query string.
+ *
+ * @access public
+ * @since 2.6.0
+ * @var array
+ */
+ public $args = array();
- if ( ! $this->registered[$handle]->src ) { // Defines a group.
- $this->done[] = $handle;
- continue;
- }
+ /**
+ * An array of handle groups to enqueue.
+ *
+ * @access public
+ * @since 2.8.0
+ * @var array
+ */
+ public $groups = array();
+ /**
+ * A handle group to enqueue.
+ *
+ * @access public
+ * @since 2.8.0
+ * @deprecated 4.5.0
+ * @var int
+ */
+ public $group = 0;
+
+ /**
+ * Processes the items and dependencies.
+ *
+ * Processes the items passed to it or the queue, and their dependencies.
+ *
+ * @access public
+ * @since 2.6.0
+ * @since 2.8.0 Added the `$group` parameter.
+ *
+ * @param mixed $handles Optional. Items to be processed: Process queue (false), process item (string), process items (array of strings).
+ * @param mixed $group Group level: level (int), no groups (false).
+ * @return array 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;
return $this->done;
}
- function do_item( $handle ) {
+ /**
+ * Processes a dependency.
+ *
+ * @access public
+ * @since 2.6.0
+ *
+ * @param string $handle Name of the item. Should be unique.
+ * @return bool True on success, false if not set.
+ */
+ public function do_item( $handle ) {
return isset($this->registered[$handle]);
}
/**
- * Determines dependencies
+ * Determines dependencies.
*
- * Recursively builds array of items to process taking dependencies into account. Does NOT catch infinite loops.
+ * Recursively builds an array of items to process taking
+ * dependencies into account. Does NOT catch infinite loops.
*
-
- * @param mixed handles Accepts (string) dep name or (array of strings) dep names
- * @param bool recursion Used internally when function calls itself
+ * @access public
+ * @since 2.1.0
+ * @since 2.6.0 Moved from `WP_Scripts`.
+ * @since 2.8.0 Added the `$group` parameter.
+ *
+ * @param mixed $handles Item handle and argument (string) or item handles and arguments (array of strings).
+ * @param bool $recursion Internal flag that function is calling itself.
+ * @param int|false $group Group level: (int) level, (false) no groups.
+ * @return bool True on success, false on failure.
*/
- function all_deps( $handles, $recursion = false, $group = false ) {
+ public function all_deps( $handles, $recursion = false, $group = false ) {
if ( !$handles = (array) $handles )
return false;
if ( in_array($handle, $this->done, true) ) // Already done
continue;
- $moved = $this->set_group( $handle, $recursion, $group );
+ $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; // Script doesn't exist
+ $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; // Script requires deps which don't exist (not a necessary check. efficiency?)
- elseif ( $this->registered[$handle]->deps && !$this->all_deps( $this->registered[$handle]->deps, true, $group ) )
- $keep_going = false; // Script requires deps which don't exist
+ $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 script or its deps 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.
+ continue; // We're at the top level. Move on to the next one.
}
- if ( $queued ) // Already grobbed it and its deps
+ if ( $queued ) // Already grabbed it and its dependencies.
continue;
if ( isset($handle_parts[1]) )
}
/**
- * Adds item
+ * Register an item.
*
- * Adds the item only if no item of that name already exists
+ * Registers the item if no item of that name already exists.
*
- * @param string handle Script name
- * @param string src Script url
- * @param array deps (optional) Array of script names on which this script depends
- * @param string ver (optional) Script version (used for cache busting)
- * @return array Hierarchical array of dependencies
+ * @access public
+ * @since 2.1.0
+ * @since 2.6.0 Moved from `WP_Scripts`.
+ *
+ * @param string $handle Name of the item. Should be unique.
+ * @param string $src Full URL of the item, or path of the item relative to the WordPress root directory.
+ * @param array $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.
*/
- function add( $handle, $src, $deps = array(), $ver = false, $args = null ) {
+ 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 );
}
/**
- * Adds extra data
+ * Add extra item data.
+ *
+ * Adds data to a registered item.
*
- * Adds data only if script has already been added
+ * @access public
+ * @since 2.6.0
*
- * @param string handle Script name
- * @param string data_name Name of object in which to store extra data
- * @param array data Array of extra data
- * @return bool success
+ * @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.
*/
- function add_data( $handle, $data_name, $data ) {
- if ( !isset($this->registered[$handle]) )
+ 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.
+ *
+ * @access public
+ * @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]->add_data( $data_name, $data );
+
+ return $this->registered[$handle]->extra[$key];
}
- function remove( $handles ) {
+ /**
+ * Un-register an item or items.
+ *
+ * @access public
+ * @since 2.1.0
+ * @since 2.6.0 Moved from `WP_Scripts`.
+ *
+ * @param mixed $handles Item handle and argument (string) or item handles and arguments (array of strings).
+ * @return void
+ */
+ public function remove( $handles ) {
foreach ( (array) $handles as $handle )
unset($this->registered[$handle]);
}
- function enqueue( $handles ) {
+ /**
+ * 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.
+ *
+ * @access public
+ * @since 2.1.0
+ * @since 2.6.0 Moved from `WP_Scripts`.
+ *
+ * @param mixed $handles Item handle and argument (string) or item handles and arguments (array of strings).
+ */
+ public function enqueue( $handles ) {
foreach ( (array) $handles as $handle ) {
$handle = explode('?', $handle);
if ( !in_array($handle[0], $this->queue) && isset($this->registered[$handle[0]]) ) {
}
}
- function dequeue( $handles ) {
- foreach ( (array) $handles as $handle )
- unset( $this->queue[$handle] );
+ /**
+ * Dequeue an item or items.
+ *
+ * Decodes handles and arguments, then dequeues handles
+ * and removes arguments from the class property $args.
+ *
+ * @access public
+ * @since 2.1.0
+ * @since 2.6.0 Moved from `WP_Scripts`.
+ *
+ * @param mixed $handles Item handle and argument (string) or item handles and arguments (array of strings).
+ */
+ public function dequeue( $handles ) {
+ foreach ( (array) $handles as $handle ) {
+ $handle = explode('?', $handle);
+ $key = array_search($handle[0], $this->queue);
+ if ( false !== $key ) {
+ unset($this->queue[$key]);
+ unset($this->args[$handle[0]]);
+ }
+ }
}
- function query( $handle, $list = 'registered' ) { // registered, queue, done, to_do
- switch ( $list ) :
- case 'registered':
- case 'scripts': // back compat
- if ( isset($this->registered[$handle]) )
- return $this->registered[$handle];
- break;
- case 'to_print': // back compat
- case 'printed': // back compat
- if ( 'to_print' == $list )
- $list = 'to_do';
- else
- $list = 'printed';
- default:
- if ( in_array($handle, $this->$list) )
+ /**
+ * Recursively search the passed dependency tree for $handle
+ *
+ * @since 4.0.0
+ *
+ * @param array $queue An array of queued _WP_Dependency handle objects.
+ * @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 ) {
+ foreach ( $queue as $queued ) {
+ if ( ! isset( $this->registered[ $queued ] ) ) {
+ continue;
+ }
+
+ if ( in_array( $handle, $this->registered[ $queued ]->deps ) ) {
return true;
- break;
- endswitch;
+ } elseif ( $this->recurse_deps( $this->registered[ $queued ]->deps, $handle ) ) {
+ return true;
+ }
+ }
+
return false;
}
- function set_group( $handle, $recursion, $group ) {
- $group = (int) $group;
+ /**
+ * Query list for an item.
+ *
+ * @access public
+ * @since 2.1.0
+ * @since 2.6.0 Moved from `WP_Scripts`.
+ *
+ * @param string $handle Name of the item. Should be unique.
+ * @param string $list Property name of list array.
+ * @return bool|_WP_Dependency Found, or object Item data.
+ */
+ public function query( $handle, $list = 'registered' ) {
+ switch ( $list ) {
+ case 'registered' :
+ case 'scripts': // back compat
+ if ( isset( $this->registered[ $handle ] ) )
+ return $this->registered[ $handle ];
+ return false;
+
+ case 'enqueued' :
+ case 'queue' :
+ if ( in_array( $handle, $this->queue ) ) {
+ return true;
+ }
+ return $this->recurse_deps( $this->queue, $handle );
- if ( $recursion )
- $group = min($this->group, $group);
- else
- $this->group = $group;
+ case 'to_do' :
+ case 'to_print': // back compat
+ return in_array( $handle, $this->to_do );
- if ( isset($this->groups[$handle]) && $this->groups[$handle] <= $group )
+ case 'done' :
+ case 'printed': // back compat
+ return in_array( $handle, $this->done );
+ }
+ return false;
+ }
+
+ /**
+ * Set item group, unless already in a lower group.
+ *
+ * @access public
+ * @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 mixed $group Group level.
+ * @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;
- $this->groups[$handle] = $group;
return true;
}
-}
+} // WP_Dependencies
+/**
+ * Class _WP_Dependency
+ *
+ * Helper class to register a handle and associated data.
+ *
+ * @access private
+ * @since 2.6.0
+ */
class _WP_Dependency {
- var $handle;
- var $src;
- var $deps = array();
- var $ver = false;
- var $args = null;
+ /**
+ * The handle name.
+ *
+ * @access public
+ * @since 2.6.0
+ * @var null
+ */
+ public $handle;
+
+ /**
+ * The handle source.
+ *
+ * @access public
+ * @since 2.6.0
+ * @var null
+ */
+ public $src;
+
+ /**
+ * An array of handle dependencies.
+ *
+ * @access public
+ * @since 2.6.0
+ * @var array
+ */
+ public $deps = array();
+
+ /**
+ * The handle version.
+ *
+ * Used for cache-busting.
+ *
+ * @access public
+ * @since 2.6.0
+ * @var bool|string
+ */
+ public $ver = false;
- var $extra = array();
+ /**
+ * Additional arguments for the handle.
+ *
+ * @access public
+ * @since 2.6.0
+ * @var null
+ */
+ public $args = null; // Custom property, such as $in_footer or $media.
+
+ /**
+ * Extra data to supply to the handle.
+ *
+ * @access public
+ * @since 2.6.0
+ * @var array
+ */
+ public $extra = array();
- function _WP_Dependency() {
- @list($this->handle, $this->src, $this->deps, $this->ver, $this->args) = func_get_args();
- if ( !is_array($this->deps) )
+ /**
+ * Setup dependencies.
+ *
+ * @since 2.6.0
+ */
+ public function __construct() {
+ @list( $this->handle, $this->src, $this->deps, $this->ver, $this->args ) = func_get_args();
+ if ( ! is_array($this->deps) )
$this->deps = array();
- if ( !$this->ver )
- $this->ver = false;
}
- function add_data( $name, $data ) {
+ /**
+ * Add handle data.
+ *
+ * @access public
+ * @since 2.6.0
+ *
+ * @param string $name The data key to add.
+ * @param mixed $data The data value to add.
+ * @return bool False if not scalar, true otherwise.
+ */
+ public function add_data( $name, $data ) {
if ( !is_scalar($name) )
return false;
$this->extra[$name] = $data;
return true;
}
-}
+
+} // _WP_Dependencies
scripts.mit.edu / autoinstalls / wordpress.git / blobdiff