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Improve inline documentation for wp-includes/functions.wp-scripts.php.

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Props kpdesign.
Fixes #25402.


git-svn-id: https://develop.svn.wordpress.org/trunk@25597 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Drew Jaynes 2013-09-24 02:57:56 +00:00
parent b0717588b7
commit 1b984a7f05
1 changed files with 94 additions and 50 deletions
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138
src/wp-includes/functions.wp-scripts.php
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@ -1,22 +1,28 @@
<?php
/**
* BackPress script procedural API.
* BackPress Scripts Procedural API
*
* @package BackPress
* @since r16
* @since 2.6.0
*
* @package WordPress
* @subpackage BackPress
*/
/**
* Prints script tags in document head.
* Print scripts in document head that are in the $handles queue.
*
* Called by admin-header.php and by wp_head hook. Since it is called by wp_head
* on every page load, the function does not instantiate the WP_Scripts object
* unless script names are explicitly passed. Does make use of already
* instantiated $wp_scripts if present. Use provided wp_print_scripts hook to
* register/enqueue new scripts.
* Called by admin-header.php and wp_head hook. Since it is called by wp_head on every page load,
* the function does not instantiate the WP_Scripts object unless script names are explicitly passed.
* Makes use of already-instantiated $wp_scripts global if present. Use provided wp_print_scripts
* hook to register/enqueue new scripts.
*
* @since r16
* @see WP_Dependencies::print_scripts()
* @see WP_Scripts::do_items()
* @global WP_Scripts $wp_scripts The WP_Scripts object for printing scripts.
*
* @since 2.6.0
*
* @param array|bool $handles Optional. Scripts to be printed. Default 'false'.
* @return array On success, a processed array of WP_Dependencies items; otherwise, an empty array.
*/
function wp_print_scripts( $handles = false ) {
do_action( 'wp_print_scripts' );
@ -39,15 +45,25 @@ function wp_print_scripts( $handles = false ) {
}
/**
* Register new Javascript file.
* Register a new script.
*
* @since r16
* @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|bool $ver (optional) Script version (used for cache busting), set to null to disable
* @param bool $in_footer (optional) Whether to enqueue the script before </head> or before </body>
* @return null
* Registers a script to be linked later using the wp_enqueue_script() function.
*
* @see WP_Dependencies::add(), WP_Dependencies::add_data()
* @global WP_Scripts $wp_scripts The WP_Scripts object for printing scripts.
*
* @since 2.6.0
*
* @param string $handle Name of the script. Should be unique.
* @param string $src Path to the script from the WordPress root directory. Example: '/js/myscript.js'.
* @param array $deps Optional. An array of registered script handles this script depends on. Set to false if there
* are no dependencies. Default empty array.
* @param string|bool $ver Optional. String specifying script version number, if it has one, which is concatenated
* to end of path as a query string. If no version is specified or set to false, a version
* number is automatically added equal to current installed WordPress version.
* If set to null, no version is added. Default 'false'. Accepts 'false', 'null', or 'string'.
* @param bool $in_footer Optional. Whether to enqueue the script before </head> or before </body>.
* Default 'false'. Accepts 'false' or 'true'.
*/
function wp_register_script( $handle, $src, $deps = array(), $ver = false, $in_footer = false ) {
global $wp_scripts;
@ -64,24 +80,30 @@ function wp_register_script( $handle, $src, $deps = array(), $ver = false, $in_f
}
/**
* Wrapper for $wp_scripts->localize().
* Localize a script.
*
* Used to localize a script.
* Works only if the script has already been added.
* Accepts an associative array $l10n and creates JS object:
*
* Accepts an associative array $l10n and creates a JavaScript object:
* <code>
* "$object_name" = {
* key: value,
* key: value,
* ...
* }
* See http://core.trac.wordpress.org/ticket/11520 for more information.
* </code>
*
* @since r16
* @see WP_Dependencies::localize()
* @link http://core.trac.wordpress.org/ticket/11520
* @global WP_Scripts $wp_scripts The WP_Scripts object for printing scripts.
*
* @param string $handle The script handle that was registered or used in script-loader
* @param string $object_name Name for the created JS object. This is passed directly so it should be qualified JS variable /[a-zA-Z0-9_]+/
* @param array $l10n Associative PHP array containing the translated strings. HTML entities will be converted and the array will be JSON encoded.
* @return bool Whether the localization was added successfully.
* @since 2.6.0
*
* @param string $handle Script handle the data will be attached to.
* @param string $object_name Name for the JavaScript object. Passed directly, so it should be qualified JS variable.
* Example: '/[a-zA-Z0-9_]+/'.
* @param array $l10n The data itself. The data can be either a single or multi-dimensional array.
* @return bool True if the script was successfully localized, false otherwise.
*/
function wp_localize_script( $handle, $object_name, $l10n ) {
global $wp_scripts;
@ -99,8 +121,15 @@ function wp_localize_script( $handle, $object_name, $l10n ) {
/**
* Remove a registered script.
*
* @since r16
* @see WP_Scripts::remove() For parameter information.
* Note: there are intentional safeguards in place to prevent critical admin scripts,
* such as jQuery core, from being unregistered.
*
* @see WP_Dependencies::remove()
* @global WP_Scripts $wp_scripts The WP_Scripts object for printing scripts.
*
* @since 2.6.0
*
* @param string $handle Name of the script to be removed.
*/
function wp_deregister_script( $handle ) {
global $wp_scripts;
@ -111,8 +140,10 @@ function wp_deregister_script( $handle ) {
$wp_scripts = new WP_Scripts();
}
// Do not allow accidental or negligent deregistering of critical scripts in the admin.
// Show minimal remorse if the correct hook is used.
/**
* Do not allow accidental or negligent de-registering of critical scripts in the admin.
* Show minimal remorse if the correct hook is used.
*/
$current_filter = current_filter();
if ( ( is_admin() && 'admin_enqueue_scripts' !== $current_filter ) ||
( 'wp-login.php' === $GLOBALS['pagenow'] && 'login_enqueue_scripts' !== $current_filter )
@ -123,8 +154,7 @@ function wp_deregister_script( $handle ) {
'jquery-ui-draggable', 'jquery-ui-droppable', 'jquery-ui-menu', 'jquery-ui-mouse',
'jquery-ui-position', 'jquery-ui-progressbar', 'jquery-ui-resizable', 'jquery-ui-selectable',
'jquery-ui-slider', 'jquery-ui-sortable', 'jquery-ui-spinner', 'jquery-ui-tabs',
'jquery-ui-tooltip', 'jquery-ui-widget',
'underscore', 'backbone',
'jquery-ui-tooltip', 'jquery-ui-widget', 'underscore', 'backbone',
);
if ( in_array( $handle, $no ) ) {
@ -139,12 +169,23 @@ function wp_deregister_script( $handle ) {
}
/**
* Enqueues script.
* Enqueue a script.
*
* Registers the script if src provided (does NOT overwrite) and enqueues.
* Registers the script if $src provided (does NOT overwrite), and enqueues it.
*
* @since r16
* @see wp_register_script() For parameter information.
* @see WP_Dependencies::add(), WP_Dependencies::add_data(), WP_Dependencies::enqueue()
* @global WP_Scripts $wp_scripts The WP_Scripts object for printing scripts.
*
* @since 2.6.0
* @param string $handle Name of the script.
* @param string|bool $src Path to the script from the root directory of WordPress. Example: '/js/myscript.js'.
* @param array $deps An array of registered handles this script depends on. Default empty array.
* @param string|bool $ver Optional. String specifying the script version number, if it has one. This parameter
* is used to ensure that the correct version is sent to the client regardless of caching,
* and so should be included if a version number is available and makes sense for the script.
* @param bool $in_footer Optional. Whether to enqueue the script before </head> or before </body>.
* Default 'false'. Accepts 'false' or 'true'.
*/
function wp_enqueue_script( $handle, $src = false, $deps = array(), $ver = false, $in_footer = false ) {
global $wp_scripts;
@ -165,10 +206,14 @@ function wp_enqueue_script( $handle, $src = false, $deps = array(), $ver = false
}
/**
* Remove an enqueued script.
* Remove a previously enqueued script.
*
* @see WP_Dependencies::dequeue()
* @global WP_Scripts $wp_scripts The WP_Scripts object for printing scripts.
*
* @since 3.1.0
* @see WP_Scripts::dequeue() For parameter information.
*
* @param string $handle Name of the script to be removed.
*/
function wp_dequeue_script( $handle ) {
global $wp_scripts;
@ -183,18 +228,17 @@ function wp_dequeue_script( $handle ) {
}
/**
* Check whether script has been added to WordPress Scripts.
* Check whether a script has been added to the queue.
*
* By default, checks if the script has been enqueued. You can also
* pass 'registered' to $list, to see if the script is registered,
* and you can check processing statuses with 'to_do' and 'done'.
* @global WP_Scripts $wp_scripts The WP_Scripts object for printing scripts.
*
* @since 2.8.0
* @since 3.5.0 'enqueued' added as an alias of the 'queue' list.
*
* @param string $handle Name of the script.
* @param string $list Optional. Defaults to 'enqueued'. Values are
* 'registered', 'enqueued' (or 'queue'), 'to_do', and 'done'.
* @return bool Whether script is in the list.
* @param string $list Optional. Status of the script to check. Default 'enqueued'.
* Accepts 'enqueued', 'registered', 'queue', 'to_do', and 'done'.
* @return bool Whether the script script is queued.
*/
function wp_script_is( $handle, $list = 'enqueued' ) {
global $wp_scripts;