name : functions.wp-scripts.php <?php /** * Dependencies API: Scripts functions * * @since 2.6.0 * * @package WordPress * @subpackage Dependencies */ /** * Initializes $wp_scripts if it has not been set. * * @since 4.2.0 * * @global WP_Scripts $wp_scripts * * @return WP_Scripts WP_Scripts instance. */ function wp_scripts() { global $wp_scripts; if ( ! ( $wp_scripts instanceof WP_Scripts ) ) { $wp_scripts = new WP_Scripts(); } return $wp_scripts; } /** * Helper function to output a _doing_it_wrong message when applicable. * * @ignore * @since 4.2.0 * @since 5.5.0 Added the `$handle` parameter. * * @param string $function_name Function name. * @param string $handle Optional. Name of the script or stylesheet that was * registered or enqueued too early. Default empty. */ function _wp_scripts_maybe_doing_it_wrong( $function_name, $handle = '' ) { if ( did_action( 'init' ) || did_action( 'wp_enqueue_scripts' ) || did_action( 'admin_enqueue_scripts' ) || did_action( 'login_enqueue_scripts' ) ) { return; } $message = sprintf( /* translators: 1: wp_enqueue_scripts, 2: admin_enqueue_scripts, 3: login_enqueue_scripts */ __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ), '<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ); if ( $handle ) { $message .= ' ' . sprintf( /* translators: %s: Name of the script or stylesheet. */ __( 'This notice was triggered by the %s handle.' ), '<code>' . $handle . '</code>' ); } _doing_it_wrong( $function_name, $message, '3.3.0' ); } /** * Prints scripts in document head that are in the $handles queue. * * Called by admin-header.php and {@see 'wp_head'} hook. Since it is called by wp_head on every page load, * the function does not instantiate the WP_Scripts object unless script names are explicitly passed. * Makes use of already-instantiated `$wp_scripts` global if present. Use provided {@see 'wp_print_scripts'} * hook to register/enqueue new scripts. * * @see WP_Scripts::do_item() * @since 2.1.0 * * @global WP_Scripts $wp_scripts The WP_Scripts object for printing scripts. * * @param string|string[]|false $handles Optional. Scripts to be printed. Default 'false'. * @return string[] On success, an array of handles of processed WP_Dependencies items; otherwise, an empty array. */ function wp_print_scripts( $handles = false ) { global $wp_scripts; /** * Fires before scripts in the $handles queue are printed. * * @since 2.1.0 */ do_action( 'wp_print_scripts' ); if ( '' === $handles ) { // For 'wp_head'. $handles = false; } _wp_scripts_maybe_doing_it_wrong( __FUNCTION__ ); if ( ! ( $wp_scripts instanceof WP_Scripts ) ) { if ( ! $handles ) { return array(); // No need to instantiate if nothing is there. } } return wp_scripts()->do_items( $handles ); } /** * Adds extra code to a registered script. * * Code will only be added if the script is already in the queue. * Accepts a string `$data` containing the code. If two or more code blocks * are added to the same script `$handle`, they will be printed in the order * they were added, i.e. the latter added code can redeclare the previous. * * @since 4.5.0 * * @see WP_Scripts::add_inline_script() * * @param string $handle Name of the script to add the inline script to. * @param string $data String containing the JavaScript to be added. * @param string $position Optional. Whether to add the inline script before the handle * or after. Default 'after'. * @return bool True on success, false on failure. */ function wp_add_inline_script( $handle, $data, $position = 'after' ) { _wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle ); if ( false !== stripos( $data, '</script>' ) ) { _doing_it_wrong( __FUNCTION__, sprintf( /* translators: 1: <script>, 2: wp_add_inline_script() */ __( 'Do not pass %1$s tags to %2$s.' ), '<code>&lt;script&gt;</code>', '<code>wp_add_inline_script()</code>' ), '4.5.0' ); $data = trim( preg_replace( '#<script[^>]*>(.*)</script>#is', '$1', $data ) ); } return wp_scripts()->add_inline_script( $handle, $data, $position ); } /** * Registers a new script. * * Registers a script to be enqueued later using the wp_enqueue_script() function. * * @see WP_Dependencies::add() * @see WP_Dependencies::add_data() * * @since 2.1.0 * @since 4.3.0 A return value was added. * @since 6.3.0 The $in_footer parameter of type boolean was overloaded to be an $args parameter of type array. * * @param string $handle Name of the script. Should be unique. * @param string|false $src Full URL of the script, or path of the script relative to the WordPress root directory. * If source is set to false, script is an alias of other scripts it depends on. * @param string[] $deps Optional. An array of registered script handles this script depends on. Default empty array. * @param string|bool|null $ver Optional. String specifying script 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 array|bool $args { * Optional. An array of additional script loading strategies. Default empty array. * Otherwise, it may be a boolean in which case it determines whether the script is printed in the footer. Default false. * * @type string $strategy Optional. If provided, may be either 'defer' or 'async'. * @type bool $in_footer Optional. Whether to print the script in the footer. Default 'false'. * } * @return bool Whether the script has been registered. True on success, false on failure. */ function wp_register_script( $handle, $src, $deps = array(), $ver = false, $args = array() ) { if ( ! is_array( $args ) ) { $args = array( 'in_footer' => (bool) $args, ); } _wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle ); $wp_scripts = wp_scripts(); $registered = $wp_scripts->add( $handle, $src, $deps, $ver ); if ( ! empty( $args['in_footer'] ) ) { $wp_scripts->add_data( $handle, 'group', 1 ); } if ( ! empty( $args['strategy'] ) ) { $wp_scripts->add_data( $handle, 'strategy', $args['strategy'] ); } return $registered; } /** * Localizes a script. * * Works only if the script has already been registered. * * Accepts an associative array `$l10n` and creates a JavaScript object: * * "$object_name": { * key: value, * key: value, * ... * } * * @see WP_Scripts::localize() * @link https://core.trac.wordpress.org/ticket/11520 * * @since 2.2.0 * * @todo Documentation cleanup * * @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 ) { $wp_scripts = wp_scripts(); return $wp_scripts->localize( $handle, $object_name, $l10n ); } /** * Sets translated strings for a script. * * Works only if the script has already been registered. * * @see WP_Scripts::set_translations() * @since 5.0.0 * @since 5.1.0 The `$domain` parameter was made optional. * * @global WP_Scripts $wp_scripts The WP_Scripts object for printing scripts. * * @param string $handle Script handle the textdomain will be attached to. * @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 successfully localized, false otherwise. */ function wp_set_script_translations( $handle, $domain = 'default', $path = '' ) { global $wp_scripts; if ( ! ( $wp_scripts instanceof WP_Scripts ) ) { _wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle ); return false; } return $wp_scripts->set_translations( $handle, $domain, $path ); } /** * Removes a registered script. * * Note: there are intentional safeguards in place to prevent critical admin scripts, * such as jQuery core, from being unregistered. * * @see WP_Dependencies::remove() * * @since 2.1.0 * * @global string $pagenow The filename of the current screen. * * @param string $handle Name of the script to be removed. */ function wp_deregister_script( $handle ) { global $pagenow; _wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle ); /** * 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' === $pagenow && 'login_enqueue_scripts' !== $current_filter ) ) { $not_allowed = array( 'jquery', 'jquery-core', 'jquery-migrate', 'jquery-ui-core', 'jquery-ui-accordion', 'jquery-ui-autocomplete', 'jquery-ui-button', 'jquery-ui-datepicker', 'jquery-ui-dialog', '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', ); if ( in_array( $handle, $not_allowed, true ) ) { _doing_it_wrong( __FUNCTION__, sprintf( /* translators: 1: Script name, 2: wp_enqueue_scripts */ __( 'Do not deregister the %1$s script in the administration area. To target the front-end theme, use the %2$s hook.' ), "<code>$handle</code>", '<code>wp_enqueue_scripts</code>' ), '3.6.0' ); return; } } wp_scripts()->remove( $handle ); } /** * Enqueues a script. * * Registers the script if `$src` provided (does NOT overwrite), and enqueues it. * * @see WP_Dependencies::add() * @see WP_Dependencies::add_data() * @see WP_Dependencies::enqueue() * * @since 2.1.0 * @since 6.3.0 The $in_footer parameter of type boolean was overloaded to be an $args parameter of type array. * * @param string $handle Name of the script. Should be unique. * @param string $src Full URL of the script, or path of the script relative to the WordPress root directory. * Default empty. * @param string[] $deps Optional. An array of registered script handles this script depends on. Default empty array. * @param string|bool|null $ver Optional. String specifying script 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 array|bool $args { * Optional. An array of additional script loading strategies. Default empty array. * Otherwise, it may be a boolean in which case it determines whether the script is printed in the footer. Default false. * * @type string $strategy Optional. If provided, may be either 'defer' or 'async'. * @type bool $in_footer Optional. Whether to print the script in the footer. Default 'false'. * } */ function wp_enqueue_script( $handle, $src = '', $deps = array(), $ver = false, $args = array() ) { _wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle ); $wp_scripts = wp_scripts(); if ( $src || ! empty( $args ) ) { $_handle = explode( '?', $handle ); if ( ! is_array( $args ) ) { $args = array( 'in_footer' => (bool) $args, ); } if ( $src ) { $wp_scripts->add( $_handle[0], $src, $deps, $ver ); } if ( ! empty( $args['in_footer'] ) ) { $wp_scripts->add_data( $_handle[0], 'group', 1 ); } if ( ! empty( $args['strategy'] ) ) { $wp_scripts->add_data( $_handle[0], 'strategy', $args['strategy'] ); } } $wp_scripts->enqueue( $handle ); } /** * Removes a previously enqueued script. * * @see WP_Dependencies::dequeue() * * @since 3.1.0 * * @param string $handle Name of the script to be removed. */ function wp_dequeue_script( $handle ) { _wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle ); wp_scripts()->dequeue( $handle ); } /** * Determines whether a script has been added to the queue. * * For more information on this and similar theme functions, check out * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/ * Conditional Tags} article in the Theme Developer Handbook. * * @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 $status Optional. Status of the script to check. Default 'enqueued'. * Accepts 'enqueued', 'registered', 'queue', 'to_do', and 'done'. * @return bool Whether the script is queued. */ function wp_script_is( $handle, $status = 'enqueued' ) { _wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle ); return (bool) wp_scripts()->query( $handle, $status ); } /** * Adds metadata to a script. * * Works only if the script has already been registered. * * Possible values for $key and $value: * 'conditional' string Comments for IE 6, lte IE 7, etc. * * @since 4.2.0 * * @see WP_Dependencies::add_data() * * @param string $handle Name of the script. * @param string $key Name of data point for which we're storing a value. * @param mixed $value String containing the data to be added. * @return bool True on success, false on failure. */ function wp_script_add_data( $handle, $key, $value ) { return wp_scripts()->add_data( $handle, $key, $value ); }