422 lines
13 KiB
PHP
422 lines
13 KiB
PHP
<?php
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/**
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* Dependencies API: Scripts functions
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*
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* @since 2.6.0
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*
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* @package WordPress
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* @subpackage Dependencies
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*/
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/**
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* Initialize $wp_scripts if it has not been set.
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*
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* @global WP_Scripts $wp_scripts
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*
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* @since 4.2.0
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*
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* @return WP_Scripts WP_Scripts instance.
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*/
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function wp_scripts() {
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global $wp_scripts;
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if ( ! ( $wp_scripts instanceof WP_Scripts ) ) {
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$wp_scripts = new WP_Scripts();
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}
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return $wp_scripts;
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}
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/**
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* Helper function to output a _doing_it_wrong message when applicable.
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*
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* @ignore
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* @since 4.2.0
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* @since 5.5.0 Added the `$handle` parameter.
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*
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* @param string $function Function name.
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* @param string $handle Optional. Name of the script or stylesheet that was
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* registered or enqueued too early. Default empty.
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*/
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function _wp_scripts_maybe_doing_it_wrong( $function, $handle = '' ) {
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if ( did_action( 'init' ) || did_action( 'wp_enqueue_scripts' )
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|| did_action( 'admin_enqueue_scripts' ) || did_action( 'login_enqueue_scripts' )
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) {
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return;
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}
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$message = sprintf(
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/* translators: 1: wp_enqueue_scripts, 2: admin_enqueue_scripts, 3: login_enqueue_scripts */
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__( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),
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'<code>wp_enqueue_scripts</code>',
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'<code>admin_enqueue_scripts</code>',
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'<code>login_enqueue_scripts</code>'
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);
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if ( $handle ) {
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$message .= ' ' . sprintf(
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/* translators: %s: Name of the script or stylesheet. */
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__( 'This notice was triggered by the %s handle.' ),
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'<code>' . $handle . '</code>'
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);
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}
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_doing_it_wrong(
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$function,
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$message,
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'3.3.0'
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);
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}
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/**
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* Prints scripts in document head that are in the $handles queue.
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*
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* Called by admin-header.php and {@see 'wp_head'} hook. Since it is called by wp_head on every page load,
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* the function does not instantiate the WP_Scripts object unless script names are explicitly passed.
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* Makes use of already-instantiated $wp_scripts global if present. Use provided {@see 'wp_print_scripts'}
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* hook to register/enqueue new scripts.
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*
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* @see WP_Scripts::do_item()
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* @global WP_Scripts $wp_scripts The WP_Scripts object for printing scripts.
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*
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* @since 2.1.0
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*
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* @param string|bool|array $handles Optional. Scripts to be printed. Default 'false'.
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* @return string[] On success, an array of handles of processed WP_Dependencies items; otherwise, an empty array.
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*/
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function wp_print_scripts( $handles = false ) {
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global $wp_scripts;
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/**
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* Fires before scripts in the $handles queue are printed.
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*
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* @since 2.1.0
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*/
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do_action( 'wp_print_scripts' );
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if ( '' === $handles ) { // For 'wp_head'.
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$handles = false;
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}
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_wp_scripts_maybe_doing_it_wrong( __FUNCTION__ );
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if ( ! ( $wp_scripts instanceof WP_Scripts ) ) {
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if ( ! $handles ) {
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return array(); // No need to instantiate if nothing is there.
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}
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}
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return wp_scripts()->do_items( $handles );
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}
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/**
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* Adds extra code to a registered script.
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*
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* Code will only be added if the script is already in the queue.
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* Accepts a string $data containing the Code. If two or more code blocks
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* are added to the same script $handle, they will be printed in the order
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* they were added, i.e. the latter added code can redeclare the previous.
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*
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* @since 4.5.0
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*
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* @see WP_Scripts::add_inline_script()
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*
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* @param string $handle Name of the script to add the inline script to.
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* @param string $data String containing the JavaScript to be added.
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* @param string $position Optional. Whether to add the inline script before the handle
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* or after. Default 'after'.
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* @return bool True on success, false on failure.
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*/
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function wp_add_inline_script( $handle, $data, $position = 'after' ) {
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_wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle );
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if ( false !== stripos( $data, '</script>' ) ) {
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_doing_it_wrong(
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__FUNCTION__,
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sprintf(
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/* translators: 1: <script>, 2: wp_add_inline_script() */
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__( 'Do not pass %1$s tags to %2$s.' ),
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'<code><script></code>',
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'<code>wp_add_inline_script()</code>'
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),
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'4.5.0'
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);
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$data = trim( preg_replace( '#<script[^>]*>(.*)</script>#is', '$1', $data ) );
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}
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return wp_scripts()->add_inline_script( $handle, $data, $position );
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}
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/**
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* Register a new script.
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*
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* Registers a script to be enqueued later using the wp_enqueue_script() function.
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*
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* @see WP_Dependencies::add()
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* @see WP_Dependencies::add_data()
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*
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* @since 2.1.0
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* @since 4.3.0 A return value was added.
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*
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* @param string $handle Name of the script. Should be unique.
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* @param string|false $src Full URL of the script, or path of the script relative to the WordPress root directory.
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* If source is set to false, script is an alias of other scripts it depends on.
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* @param string[] $deps Optional. An array of registered script handles this script depends on. Default empty array.
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* @param string|bool|null $ver Optional. String specifying script version number, if it has one, which is added to the URL
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* as a query string for cache busting purposes. If version is set to false, a version
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* number is automatically added equal to current installed WordPress version.
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* If set to null, no version is added.
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* @param bool $in_footer Optional. Whether to enqueue the script before `</body>` instead of in the `<head>`.
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* Default 'false'.
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* @return bool Whether the script has been registered. True on success, false on failure.
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*/
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function wp_register_script( $handle, $src, $deps = array(), $ver = false, $in_footer = false ) {
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_wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle );
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$wp_scripts = wp_scripts();
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$registered = $wp_scripts->add( $handle, $src, $deps, $ver );
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if ( $in_footer ) {
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$wp_scripts->add_data( $handle, 'group', 1 );
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}
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return $registered;
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}
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/**
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* Localize a script.
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*
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* Works only if the script has already been registered.
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*
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* Accepts an associative array $l10n and creates a JavaScript object:
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*
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* "$object_name" = {
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* key: value,
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* key: value,
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* ...
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* }
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*
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* @see WP_Scripts::localize()
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* @link https://core.trac.wordpress.org/ticket/11520
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* @global WP_Scripts $wp_scripts The WP_Scripts object for printing scripts.
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*
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* @since 2.2.0
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*
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* @todo Documentation cleanup
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*
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* @param string $handle Script handle the data will be attached to.
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* @param string $object_name Name for the JavaScript object. Passed directly, so it should be qualified JS variable.
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* Example: '/[a-zA-Z0-9_]+/'.
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* @param array $l10n The data itself. The data can be either a single or multi-dimensional array.
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* @return bool True if the script was successfully localized, false otherwise.
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*/
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function wp_localize_script( $handle, $object_name, $l10n ) {
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global $wp_scripts;
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if ( ! ( $wp_scripts instanceof WP_Scripts ) ) {
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_wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle );
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return false;
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}
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return $wp_scripts->localize( $handle, $object_name, $l10n );
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}
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/**
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* Sets translated strings for a script.
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*
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* Works only if the script has already been registered.
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*
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* @see WP_Scripts::set_translations()
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* @global WP_Scripts $wp_scripts The WP_Scripts object for printing scripts.
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*
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* @since 5.0.0
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* @since 5.1.0 The `$domain` parameter was made optional.
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*
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* @param string $handle Script handle the textdomain will be attached to.
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* @param string $domain Optional. Text domain. Default 'default'.
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* @param string $path Optional. The full file path to the directory containing translation files.
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* @return bool True if the text domain was successfully localized, false otherwise.
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*/
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function wp_set_script_translations( $handle, $domain = 'default', $path = '' ) {
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global $wp_scripts;
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if ( ! ( $wp_scripts instanceof WP_Scripts ) ) {
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_wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle );
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return false;
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}
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return $wp_scripts->set_translations( $handle, $domain, $path );
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}
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/**
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* Remove a registered script.
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*
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* Note: there are intentional safeguards in place to prevent critical admin scripts,
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* such as jQuery core, from being unregistered.
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*
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* @see WP_Dependencies::remove()
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*
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* @since 2.1.0
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*
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* @global string $pagenow The filename of the current screen.
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*
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* @param string $handle Name of the script to be removed.
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*/
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function wp_deregister_script( $handle ) {
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global $pagenow;
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_wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle );
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/**
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* Do not allow accidental or negligent de-registering of critical scripts in the admin.
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* Show minimal remorse if the correct hook is used.
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*/
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$current_filter = current_filter();
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if ( ( is_admin() && 'admin_enqueue_scripts' !== $current_filter ) ||
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( 'wp-login.php' === $pagenow && 'login_enqueue_scripts' !== $current_filter )
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) {
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$not_allowed = array(
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'jquery',
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'jquery-core',
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'jquery-migrate',
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'jquery-ui-core',
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'jquery-ui-accordion',
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'jquery-ui-autocomplete',
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'jquery-ui-button',
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'jquery-ui-datepicker',
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'jquery-ui-dialog',
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'jquery-ui-draggable',
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'jquery-ui-droppable',
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'jquery-ui-menu',
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'jquery-ui-mouse',
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'jquery-ui-position',
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'jquery-ui-progressbar',
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'jquery-ui-resizable',
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'jquery-ui-selectable',
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'jquery-ui-slider',
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'jquery-ui-sortable',
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'jquery-ui-spinner',
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'jquery-ui-tabs',
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'jquery-ui-tooltip',
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'jquery-ui-widget',
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'underscore',
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'backbone',
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);
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if ( in_array( $handle, $not_allowed, true ) ) {
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_doing_it_wrong(
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__FUNCTION__,
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sprintf(
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/* translators: 1: Script name, 2: wp_enqueue_scripts */
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__( 'Do not deregister the %1$s script in the administration area. To target the front-end theme, use the %2$s hook.' ),
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"<code>$handle</code>",
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'<code>wp_enqueue_scripts</code>'
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),
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'3.6.0'
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);
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return;
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}
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}
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wp_scripts()->remove( $handle );
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}
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/**
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* Enqueue a script.
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*
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* Registers the script if $src provided (does NOT overwrite), and enqueues it.
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*
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* @see WP_Dependencies::add()
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* @see WP_Dependencies::add_data()
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* @see WP_Dependencies::enqueue()
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*
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* @since 2.1.0
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*
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* @param string $handle Name of the script. Should be unique.
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* @param string $src Full URL of the script, or path of the script relative to the WordPress root directory.
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* Default empty.
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* @param string[] $deps Optional. An array of registered script handles this script depends on. Default empty array.
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* @param string|bool|null $ver Optional. String specifying script version number, if it has one, which is added to the URL
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* as a query string for cache busting purposes. If version is set to false, a version
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* number is automatically added equal to current installed WordPress version.
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* If set to null, no version is added.
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* @param bool $in_footer Optional. Whether to enqueue the script before `</body>` instead of in the `<head>`.
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* Default 'false'.
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*/
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function wp_enqueue_script( $handle, $src = '', $deps = array(), $ver = false, $in_footer = false ) {
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_wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle );
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$wp_scripts = wp_scripts();
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if ( $src || $in_footer ) {
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$_handle = explode( '?', $handle );
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if ( $src ) {
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$wp_scripts->add( $_handle[0], $src, $deps, $ver );
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}
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if ( $in_footer ) {
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$wp_scripts->add_data( $_handle[0], 'group', 1 );
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}
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}
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$wp_scripts->enqueue( $handle );
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}
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/**
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* Remove a previously enqueued script.
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*
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* @see WP_Dependencies::dequeue()
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*
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* @since 3.1.0
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*
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* @param string $handle Name of the script to be removed.
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*/
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function wp_dequeue_script( $handle ) {
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_wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle );
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wp_scripts()->dequeue( $handle );
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}
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/**
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* Determines whether a script has been added to the queue.
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*
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* For more information on this and similar theme functions, check out
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* the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
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* Conditional Tags} article in the Theme Developer Handbook.
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*
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* @since 2.8.0
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* @since 3.5.0 'enqueued' added as an alias of the 'queue' list.
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*
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* @param string $handle Name of the script.
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* @param string $list Optional. Status of the script to check. Default 'enqueued'.
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* Accepts 'enqueued', 'registered', 'queue', 'to_do', and 'done'.
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* @return bool Whether the script is queued.
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*/
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function wp_script_is( $handle, $list = 'enqueued' ) {
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_wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle );
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return (bool) wp_scripts()->query( $handle, $list );
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}
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/**
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* Add metadata to a script.
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*
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* Works only if the script has already been registered.
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*
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* Possible values for $key and $value:
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* 'conditional' string Comments for IE 6, lte IE 7, etc.
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*
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* @since 4.2.0
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*
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* @see WP_Dependencies::add_data()
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*
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* @param string $handle Name of the script.
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* @param string $key Name of data point for which we're storing a value.
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* @param mixed $value String containing the data to be added.
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* @return bool True on success, false on failure.
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*/
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function wp_script_add_data( $handle, $key, $value ) {
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return wp_scripts()->add_data( $handle, $key, $value );
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}
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