init();
add_action( 'init', array( $this, 'init' ), 0 );
}
public function init() {
/**
* Fires when the WP_Scripts instance is initialized.
*
* @since 2.6.0
*
* @param WP_Scripts &$this 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.
*
* @param mixed $handles Optional. Scripts to be printed. (void) prints queue, (string) prints
* that script, (array of strings) prints those scripts. Default false.
* @param int $group Optional. If scripts were queued in groups prints this group number.
* Default false.
* @return array Scripts that have been printed.
*/
public function print_scripts( $handles = false, $group = false ) {
return $this->do_items( $handles, $group );
}
// Deprecated since 3.3, see print_extra_script()
public function print_scripts_l10n( $handle, $echo = true ) {
_deprecated_function( __FUNCTION__, '3.3', 'print_extra_script()' );
return $this->print_extra_script( $handle, $echo );
}
public function print_extra_script( $handle, $echo = true ) {
if ( !$output = $this->get_data( $handle, 'data' ) )
return;
if ( !$echo )
return $output;
echo "\n";
return true;
}
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;
$cond_before = $cond_after = '';
$conditional = isset( $obj->extra['conditional'] ) ? $obj->extra['conditional'] : '';
if ( $conditional ) {
$cond_before = "\n";
}
if ( $this->do_concat ) {
/**
* Filter the script loader source.
*
* @since 2.2.0
*
* @param string $src Script loader source path.
* @param string $handle Script handle.
*/
$srce = apply_filters( 'script_loader_src', $src, $handle );
if ( $this->in_default_dir( $srce ) && ! $conditional ) {
$this->print_code .= $this->print_extra_script( $handle, false );
$this->concat .= "$handle,";
$this->concat_version .= "$handle$ver";
return true;
} else {
$this->ext_handles .= "$handle,";
$this->ext_version .= "$handle$ver";
}
}
$has_conditional_data = $conditional && $this->get_data( $handle, 'data' );
if ( $has_conditional_data ) {
echo $cond_before;
}
$this->print_extra_script( $handle );
if ( $has_conditional_data ) {
echo $cond_after;
}
if ( ! preg_match( '|^(https?:)?//|', $src ) && ! ( $this->content_url && 0 === strpos( $src, $this->content_url ) ) ) {
$src = $this->base_url . $src;
}
if ( ! empty( $ver ) )
$src = add_query_arg( 'ver', $ver, $src );
/** This filter is documented in wp-includes/class.wp-scripts.php */
$src = esc_url( apply_filters( 'script_loader_src', $src, $handle ) );
if ( ! $src )
return true;
$tag = "{$cond_before}\n{$cond_after}";
/**
* Filter the HTML script tag of an enqueued script.
*
* @since 4.1.0
*
* @param string $tag The `