function _menu_build_visible_tree

Find all visible items in the menu tree, for ease in displaying to user.

Since this is only for display, we only need title, path, and children for each item.

File

includes/menu.inc, line 871

API for the Drupal menu system.

Code

function _menu_build_visible_tree($pid = 0) {
  global $_menu;
  if (isset($_menu['items'][$pid])) {
    $parent = $_menu['items'][$pid];
    $children = array();
    if (array_key_exists('children', $parent)) {
      usort($parent['children'], '_menu_sort');
      foreach ($parent['children'] as $mid) {
        $children = array_merge($children, _menu_build_visible_tree($mid));
      }
    }
    $visible = $parent['type'] & MENU_VISIBLE_IN_TREE || $parent['type'] & MENU_VISIBLE_IF_HAS_CHILDREN && count($children) > 0;
    $allowed = _menu_item_is_accessible($pid);
    if ($parent['type'] & MENU_IS_ROOT || $visible && $allowed) {
      $_menu['visible'][$pid] = array(
        'title' => $parent['title'],
        'path' => $parent['path'],
        'children' => $children,
        'type' => $parent['type'],
      );
      foreach ($children as $mid) {
        $_menu['visible'][$mid]['pid'] = $pid;
      }
      return array(
        $pid,
      );
    }
    else {
      return $children;
    }
  }
  return array();
}