function units_ui_menu_breadcrumb_alter in Units of Measurement 7.2

Same name and namespace in other branches

1. 7 units_ui.module \units_ui_menu_breadcrumb_alter()

Implements hook_menu_breadcrumb_alter().

File

./units_ui.module, line 84

Provide UI for managing available units and conversions between them.

Code

function units_ui_menu_breadcrumb_alter(&$active_trail, $item) {

  // We want to embed the link to unit measures overview page on all pages that
  // are related to managements of units.
  $prefix = 'units-ui/';
  $tail = array();
  $active_trail = array_reverse($active_trail);
  foreach ($active_trail as $k => $trail) {
    if (drupal_substr($trail['href'], 0, drupal_strlen($prefix)) == $prefix) {
      $tail[] = $trail;
      unset($active_trail[$k]);
    }
    else {
      break;
    }
  }
  $active_trail = array_reverse($active_trail);
  if (drupal_substr($item['path'], 0, drupal_strlen($prefix)) == $prefix) {
    $measure_entity_info = entity_get_info('units_measure');
    $active_trail[] = menu_get_item($measure_entity_info['admin ui']['path']);
  }
  $active_trail = array_merge($active_trail, array_reverse($tail));
}