/**
* Prints the scripts that were queued for the footer or too late for the HTML head.
*
* @since 2.8
*/
function print_footer_scripts()
{
global $wp_scripts, $concatenate_scripts;
if (!is_a($wp_scripts, 'WP_Scripts')) {
return array();
}
// No need to run if not instantiated.
script_concat_settings();
$wp_scripts->do_concat = $concatenate_scripts;
$wp_scripts->do_footer_items();
if (apply_filters('print_footer_scripts', true)) {
_print_scripts();
}
$wp_scripts->reset();
return $wp_scripts->done;
}
/**
* Prints the scripts that were queued for the footer or too late for the HTML head.
*
* @since 2.8.0
*
* @global WP_Scripts $wp_scripts
* @global bool $concatenate_scripts
*
* @return array
*/
function print_footer_scripts()
{
global $wp_scripts, $concatenate_scripts;
if (!$wp_scripts instanceof WP_Scripts) {
return array();
// No need to run if not instantiated.
}
script_concat_settings();
$wp_scripts->do_concat = $concatenate_scripts;
$wp_scripts->do_footer_items();
/**
* Filter whether to print the footer scripts.
*
* @since 2.8.0
*
* @param bool $print Whether to print the footer scripts. Default true.
*/
if (apply_filters('print_footer_scripts', true)) {
_print_scripts();
}
$wp_scripts->reset();
return $wp_scripts->done;
}
/**
* Processes a script dependency.
*
* @since 2.6.0
* @since 2.8.0 Added the `$group` parameter.
* @access public
*
* @see WP_Dependencies::do_item()
*
* @param string $handle The script's registered handle.
* @param int|false $group Optional. Group level: (int) level, (false) no groups. Default false.
* @return bool True on success, false on failure.
*/
public function do_item($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;
$cond_before = $cond_after = '';
$conditional = isset($obj->extra['conditional']) ? $obj->extra['conditional'] : '';
if ($conditional) {
$cond_before = "<!--[if {$conditional}]>\n";
$cond_after = "<![endif]-->\n";
}
$before_handle = $this->print_inline_script($handle, 'before', false);
$after_handle = $this->print_inline_script($handle, 'after', false);
if ($before_handle) {
$before_handle = sprintf("<script type='text/javascript'>\n%s\n</script>\n", $before_handle);
}
if ($after_handle) {
$after_handle = sprintf("<script type='text/javascript'>\n%s\n</script>\n", $after_handle);
}
if ($this->do_concat) {
/**
* Filters 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($srce) && ($before_handle || $after_handle)) {
$this->do_concat = false;
// Have to print the so-far concatenated scripts right away to maintain the right order.
_print_scripts();
$this->reset();
} elseif ($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 $cond_after;
}
// A single item may alias a set of items, by having dependencies, but no source.
if (!$obj->src) {
return true;
}
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}{$before_handle}<script type='text/javascript' src='{$src}'></script>\n{$after_handle}{$cond_after}";
/**
* Filters the HTML script tag of an enqueued script.
*
* @since 4.1.0
*
* @param string $tag The `<script>` tag for the enqueued script.
* @param string $handle The script's registered handle.
* @param string $src The script's source URL.
*/
$tag = apply_filters('script_loader_tag', $tag, $handle, $src);
if ($this->do_concat) {
$this->print_html .= $tag;
} else {
echo $tag;
}
return true;
}
