ToolbarItem::preRenderToolbarItem

public static ToolbarItem::preRenderToolbarItem($element)

public static function preRenderToolbarItem($element) {
  $id = $element['#id'];

  // Provide attributes for a toolbar item.
  $attributes = array(
    'id' => $id,
  );

  // If tray content is present, markup the tray and its associated trigger.
  if (!empty($element['tray'])) {
    // Provide attributes necessary for trays.
    $attributes += array(
      'data-toolbar-tray' => $id . '-tray',
      'aria-owns' => $id . '-tray',
      'role' => 'button',
      'aria-pressed' => 'false',
    );

    // Merge in module-provided attributes.
    $element['tab'] += array('#attributes' => array());
    $element['tab']['#attributes'] += $attributes;
    $element['tab']['#attributes']['class'][] = 'trigger';

    // Provide attributes for the tray theme wrapper.
    $attributes = array(
      'id' => $id . '-tray',
      'data-toolbar-tray' => $id . '-tray',
    );
    // Merge in module-provided attributes.
    if (!isset($element['tray']['#wrapper_attributes'])) {
      $element['tray']['#wrapper_attributes'] = array();
    }
    $element['tray']['#wrapper_attributes'] += $attributes;
    $element['tray']['#wrapper_attributes']['class'][] = 'toolbar-tray';
  }

  $element['tab']['#attributes']['class'][] = 'toolbar-item';

  return $element;
}