function _accordion_menu_subtree in Accordion Menu 7

Same name and namespace in other branches

1. 6 includes/view.inc \_accordion_menu_subtree()

Returns the tree of items below a menu item.

Parameters

array $item: A menu item whose children are to be found.

Return value

array An associative array of the items below the menu item.

1 call to _accordion_menu_subtree()

accordion_menu_output in includes/view.inc

Returns a render array of the accordion menu tree.

File

includes/view.inc, line 277

Provides view routines.

Code

function _accordion_menu_subtree(array $item) {
  static $index = array();
  static $indexed = array();

  // This looks expensive, but menu_tree_all_data uses static caching.
  $tree = menu_tree_all_data($item['menu_name']);

  // Index the tree to find the path to this item.
  if (!isset($indexed[$item['menu_name']])) {
    $index += _accordion_menu_index($tree);
    $indexed[$item['menu_name']] = TRUE;
  }

  // Traverse the tree.
  foreach ($index[$item['mlid']]['parents'] as $mlid) {
    $key = $index[$mlid]['key'];
    if (!isset($tree[$key])) {
      return array();
    }
    $tree = $tree[$key]['below'];
  }
  $key = $index[$item['mlid']]['key'];
  return isset($tree[$key]) ? $tree[$key]['below'] : array();
}