Default theme implementation to display a book tree. Returns HTML for a wrapper for a book sub-tree. Available

public BookManagerInterface::updateOutline(NodeInterface

The book manager. Type:

book_node_presave(EntityInterface $node) Implements

public BookOutlineForm::__construct(EntityManagerInterface

protected BookSettingsForm::getEditableConfigNames()

Remove form for book module. Hierarchy class \Drupal\Core\Form\

public BookOutlineStorage::insert($link, $parents)

public BookOutlineStorage::getBookSubtree($link, $max_depth)

public BookManager::getParentDepthLimit(array $book_link)