Same name in other branches

1. 8.9.x core/lib/Drupal/Core/Menu/MenuParentFormSelector.php \Drupal\Core\Menu\MenuParentFormSelector::parentSelectOptionsTreeWalk()
2. 10 core/lib/Drupal/Core/Menu/MenuParentFormSelector.php \Drupal\Core\Menu\MenuParentFormSelector::parentSelectOptionsTreeWalk()
3. 11.x core/lib/Drupal/Core/Menu/MenuParentFormSelector.php \Drupal\Core\Menu\MenuParentFormSelector::parentSelectOptionsTreeWalk()

Iterates over all items in the tree to prepare the parents select options.

Parameters

\Drupal\Core\Menu\MenuLinkTreeElement[] $tree: The menu tree.

string $menu_name: The menu name.

string $indent: The indentation string used for the label.

array $options: The select options.

string $exclude: An excluded menu link.

int $depth_limit: The maximum depth of menu links considered for the select options.

\Drupal\Core\Cache\CacheableMetadata|null &$cacheability: The object to add cacheability metadata to, if not NULL.

1 call to MenuParentFormSelector::parentSelectOptionsTreeWalk()

MenuParentFormSelector::getParentSelectOptions in core/lib/Drupal/Core/Menu/MenuParentFormSelector.php

Gets the options for a select element to choose a menu and parent.

File

core/lib/Drupal/Core/Menu/MenuParentFormSelector.php, line 141

Class

MenuParentFormSelector

Default implementation of the menu parent form selector service.

Namespace

Drupal\Core\Menu

Code

protected function parentSelectOptionsTreeWalk(array $tree, $menu_name, $indent, array &$options, $exclude, $depth_limit, CacheableMetadata &$cacheability = NULL) {
    foreach ($tree as $element) {
        if ($element->depth > $depth_limit) {
            // Don't iterate through any links on this level.
            break;
        }
        // Collect the cacheability metadata of the access result, as well as the
        // link.
        if ($cacheability) {
            $cacheability = $cacheability->merge(CacheableMetadata::createFromObject($element->access))
                ->merge(CacheableMetadata::createFromObject($element->link));
        }
        // Only show accessible links.
        if (!$element->access
            ->isAllowed()) {
            continue;
        }
        $link = $element->link;
        if ($link->getPluginId() != $exclude) {
            $title = $indent . ' ' . Unicode::truncate($link->getTitle(), 30, TRUE, FALSE);
            if (!$link->isEnabled()) {
                $title .= ' (' . $this->t('disabled') . ')';
            }
            $options[$menu_name . ':' . $link->getPluginId()] = $title;
            if (!empty($element->subtree)) {
                $this->parentSelectOptionsTreeWalk($element->subtree, $menu_name, $indent . '--', $options, $exclude, $depth_limit, $cacheability);
            }
        }
    }
}

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