public static function Toolbar::preRenderToolbar in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/toolbar/src/Element/Toolbar.php \Drupal\toolbar\Element\Toolbar::preRenderToolbar()

Builds the Toolbar as a structured array ready for drupal_render().

Since building the toolbar takes some time, it is done just prior to rendering to ensure that it is built only if it will be displayed.

Parameters

array $element: A renderable array.

Return value

array A renderable array.

See also

toolbar_page_top()

File

core/modules/toolbar/src/Element/Toolbar.php, line 66

Class

Toolbar

Provides a render element for the default Drupal toolbar.

Namespace

Drupal\toolbar\Element

Code

public static function preRenderToolbar($element) {

  // Get the configured breakpoints to switch from vertical to horizontal
  // toolbar presentation.
  $breakpoints = static::breakpointManager()
    ->getBreakpointsByGroup('toolbar');
  if (!empty($breakpoints)) {
    $media_queries = [];
    foreach ($breakpoints as $id => $breakpoint) {
      $media_queries[$id] = $breakpoint
        ->getMediaQuery();
    }
    $element['#attached']['drupalSettings']['toolbar']['breakpoints'] = $media_queries;
  }
  $module_handler = static::moduleHandler();

  // Get toolbar items from all modules that implement hook_toolbar().
  $items = $module_handler
    ->invokeAll('toolbar');

  // Allow for altering of hook_toolbar().
  $module_handler
    ->alter('toolbar', $items);

  // Sort the children.
  uasort($items, [
    '\\Drupal\\Component\\Utility\\SortArray',
    'sortByWeightProperty',
  ]);

  // Merge in the original toolbar values.
  $element = array_merge($element, $items);

  // Assign each item a unique ID, based on its key.
  foreach (Element::children($element) as $key) {
    $element[$key]['#id'] = Html::getId('toolbar-item-' . $key);
  }
  return $element;
}