function _drupal_process_attached_supplement in Drupal 8 Cache Backport 7

Overrides drupal_process_attached().

1 call to _drupal_process_attached_supplement()

core-attachments-collector.inc in includes/core-attachments-collector.inc

Attachment Collector functions for the D8 caching system backport.

File

includes/core-attachments-collector.inc, line 189

Attachment Collector functions for the D8 caching system backport.

Code

function _drupal_process_attached_supplement($elements, $group = JS_DEFAULT, $dependency_check = FALSE, $every_page = NULL) {
  static $drupal_static_fast;
  if (!isset($drupal_static_fast)) {
    $drupal_static_fast = array();
    $drupal_static_fast['render_listeners'] =& drupal_static('drupal_render:render_listeners', array());
    $drupal_static_fast['collect_attachments'] =& drupal_static('drupal_process_attached:collect_attachments', TRUE);
  }
  $render_listeners =& $drupal_static_fast['render_listeners'];
  $collect_attachments =& $drupal_static_fast['collect_attachments'];

  // If we are collecting attachments and have at least one listener in the
  // active render listeners, then put all attachments from $elements into the
  // storage of all listeners.
  if ($collect_attachments && !empty($render_listeners)) {
    foreach ($render_listeners as $listener_id => $listener_storage) {
      foreach ($elements['#attached'] as $key => $value) {
        if (!isset($render_listeners[$listener_id][$key])) {
          $render_listeners[$listener_id][$key] = array();
        }
        $render_listeners[$listener_id][$key] = array_merge($render_listeners[$listener_id][$key], $value);
      }
    }
  }

  // Protect against accidental recursion.
  $old_collect_attachments = $collect_attachments;
  $collect_attachments = FALSE;

  // Add additional types of attachments specified in the render() structure.
  // Libraries, JavaScript and CSS have been added already, as they require
  // special handling.
  foreach ($elements['#attached'] as $callback => $options) {
    if (function_exists($callback)) {
      foreach ($elements['#attached'][$callback] as $args) {
        call_user_func_array($callback, $args);
      }
    }
  }

  // Restore old value.
  $collect_attachments = $old_collect_attachments;
  return TRUE;
}