File "class-wp-scripts.php"
Full Path: /home/ycoalition/public_html/blog/wp-includes/blocks/term-description/class-wp-scripts.php
File size: 8 KB
MIME-type: text/x-php
Charset: utf-8
<?php
/**
* Dependencies API: WP_Scripts class
*
* @since 2.6.0
*
* @package WordPress
* @subpackage Dependencies
*/
/**
* Core class used to register scripts.
*
* @since 2.1.0
*
* @see WP_Dependencies
*/
class WP_Scripts extends WP_Dependencies {
/**
* Base URL for scripts.
*
* Full URL with trailing slash.
*
* @since 2.6.0
* @var string
*/
public $base_url;
/**
* URL of the content directory.
*
* @since 2.8.0
* @var string
*/
public $content_url;
/**
* Default version string for scripts.
*
* @since 2.6.0
* @var string
*/
public $default_version;
/**
* Holds handles of scripts which are enqueued in footer.
*
* @since 2.8.0
* @var array
*/
public $in_footer = array();
/**
* Holds a list of script handles which will be concatenated.
*
* @since 2.8.0
* @var string
*/
public $concat = '';
/**
* Holds a string which contains script handles and their version.
*
* @since 2.8.0
* @deprecated 3.4.0
* @var string
*/
public $concat_version = '';
/**
* Whether to perform concatenation.
*
* @since 2.8.0
* @var bool
*/
public $do_concat = false;
/**
* Holds HTML markup of scripts and additional data if concatenation
* is enabled.
*
* @since 2.8.0
* @var string
*/
public $print_html = '';
/**
* Holds inline code if concatenation is enabled.
*
* @since 2.8.0
* @var string
*/
public $print_code = '';
/**
* Holds a list of script handles which are not in the default directory
* if concatenation is enabled.
*
* Unused in core.
*
* @since 2.8.0
* @var string
*/
public $ext_handles = '';
/**
* Holds a string which contains handles and versions of scripts which
* are not in the default directory if concatenation is enabled.
*
* Unused in core.
*
* @since 2.8.0
* @var string
*/
public $ext_version = '';
/**
* List of default directories.
*
* @since 2.8.0
* @var array
*/
public $default_dirs;
/**
* Holds a mapping of dependents (as handles) for a given script handle.
* Used to optimize recursive dependency tree checks.
*
* @since 6.3.0
* @var array
*/
private $dependents_map = array();
/**
* Holds a reference to the delayed (non-blocking) script loading strategies.
* Used by methods that validate loading strategies.
*
* @since 6.3.0
* @var string[]
*/
private $delayed_strategies = array( 'defer', 'async' );
/**
* Constructor.
*
* @since 2.6.0
*/
public function __construct() {
$this->init();
add_action( 'init', array( $this, 'init' ), 0 );
}
/**
* Initialize the class.
*
* @since 3.4.0
*/
public function init() {
/**
* Fires when the WP_Scripts instance is initialized.
*
* @since 2.6.0
*
* @param WP_Scripts $wp_scripts WP_Scripts instance (passed by reference).
*/
do_action_ref_array( 'wp_default_scripts', array( &$this ) );
}
/**
* Prints scripts.
*
* Prints the scripts passed to it or the print queue. Also prints all necessary dependencies.
*
* @since 2.1.0
* @since 2.8.0 Added the `$group` parameter.
*
* @param string|string[]|false $handles Optional. Scripts to be printed: queue (false),
* single script (string), or multiple scripts (array of strings).
* Default false.
* @param int|false $group Optional. Group level: level (int), no groups (false).
* Default false.
* @return string[] Handles of scripts that have been printed.
*/
public function print_scripts( $handles = false, $group = false ) {
return $this->do_items( $handles, $group );
}
/**
* Prints extra scripts of a registered script.
*
* @since 2.1.0
* @since 2.8.0 Added the `$display` parameter.
* @deprecated 3.3.0
*
* @see print_extra_script()
*
* @param string $handle The script's registered handle.
* @param bool $display Optional. Whether to print the extra script
* instead of just returning it. Default true.
* @return bool|string|void Void if no data exists, extra scripts if `$display` is true,
* true otherwise.
*/
public function print_scripts_l10n( $handle, $display = true ) {
_deprecated_function( __FUNCTION__, '3.3.0', 'WP_Scripts::print_extra_script()' );
return $this->print_extra_script( $handle, $display );
}
/**
* Prints extra scripts of a registered script.
*
* @since 3.3.0
*
* @param string $handle The script's registered handle.
* @param bool $display Optional. Whether to print the extra script
* instead of just returning it. Default true.
* @return bool|string|void Void if no data exists, extra scripts if `$display` is true,
* true otherwise.
*/
public function print_extra_script( $handle, $display = true ) {
$output = $this->get_data( $handle, 'data' );
if ( ! $output ) {
return;
}
if ( ! $display ) {
return $output;
}
wp_print_inline_script_tag( $output, array( 'id' => "{$handle}-js-extra" ) );
return true;
}
/**
* Checks whether all dependents of a given handle are in the footer.
*
* If there are no dependents, this is considered the same as if all dependents were in the footer.
*
* @since 6.4.0
*
* @param string $handle Script handle.
* @return bool Whether all dependents are in the footer.
*/
private function are_all_dependents_in_footer( $handle ) {
foreach ( $this->get_dependents( $handle ) as $dep ) {
if ( isset( $this->groups[ $dep ] ) && 0 === $this->groups[ $dep ] ) {
return false;
}
}
return true;
}
/**
* Processes a script dependency.
*
* @since 2.6.0
* @since 2.8.0 Added the `$group` parameter.
*
* @see WP_Dependencies::do_item()
*
* @param string $handle The script's registered handle.
* @param int|false $group Optional. Group level: level (int), no groups (false).
* Default false.
* @return bool True on success, false on failure.
*/
public function do_item( $handle, $group = false ) {
if ( ! parent::do_item( $handle ) ) {
return false;
}
if ( 0 === $group && $this->groups[ $handle ] > 0 ) {
$this->in_footer[] = $handle;
return false;
}
if ( false === $group && in_array( $handle, $this->in_footer, true ) ) {
$this->in_footer = array_diff( $this->in_footer, (array) $handle );
}
$obj = $this->registered[ $handle ];
if ( null === $obj->ver ) {
$ver = '';
} else {
$ver = $obj->ver ? $obj->ver : $this->default_version;
}
if ( isset( $this->args[ $handle ] ) ) {
$ver = $ver ? $ver . '&' . $this->args[ $handle ] : $this->args[ $handle ];
}
$src = $obj->src;
$strategy = $this->get_eligible_loading_strategy( $handle );
$intended_strategy = (string) $this->get_data( $handle, 'strategy' );
$ie_conditional_prefix = '';
$ie_conditional_suffix = '';
$conditional = isset( $obj->extra['conditional'] ) ? $obj->extra['conditional'] : '';
if ( ! $this->is_delayed_strategy( $intended_strategy ) ) {
$intended_strategy = '';
}
/*
* Move this script to the footer if:
* 1. The script is in the header group.
* 2. The current output is the header.
* 3. The intended strategy is delayed.
* 4. The actual strategy is not delayed.
* 5. All dependent scripts are in the footer.
*/
if (
0 === $group &&
0 === $this->groups[ $handle ] &&
$intended_strategy &&
! $this->is_delayed_strategy( $strategy ) &&
$this->are_all_dependents_in_footer( $handle )
) {
$this->in_footer[] = $handle;
return false;
}
if ( $conditional ) {
$ie_conditional_prefix = "<!--[if {$conditional}]>\n";
$ie_conditional_suffix = "<![endif]-->\n";
}
$before_script = $this->get_inline_script_tag( $handle, 'before' );
$after_script = $this->get_inline_script_tag( $handle, 'after' );
if ( $before_script || $after_script ) {
$inline_script_tag = $ie_conditional_prefix . $before_script . $after_script . $ie_conditional_suffix;
} else {
$inline_scr