/**
* {@inheritdoc}
*/
public function build()
{
$menu_name = $this->getDerivativeId();
$parameters = $this->menuTree->getCurrentRouteMenuTreeParameters($menu_name);
$tree = $this->menuTree->load($menu_name, $parameters);
$manipulators = array(array('callable' => 'menu.default_tree_manipulators:checkAccess'), array('callable' => 'menu.default_tree_manipulators:generateIndexAndSort'));
$tree = $this->menuTree->transform($tree, $manipulators);
return $this->menuTree->build($tree);
}
/**
* Build the mega menu link/content tree.
*
* @param MegaMenuInterface $mega_menu
*
* @return array
*/
private function buildMegaMenuTree(MegaMenuInterface $mega_menu)
{
$tree = $this->loadMenuTree($mega_menu->getTargetMenu());
$build = $this->menuLinkTree->build($tree);
$build['#mega_menu'] = $mega_menu;
$cacheability = CacheableMetadata::createFromRenderArray($build);
$cacheability->addCacheableDependency($mega_menu);
// Add content from the mega menus to the link tree.
foreach ($build['#items'] as $item_key => $item) {
$safe_item_key = str_replace('.', '_', $item_key);
$layout = $mega_menu->getLinkLayout($safe_item_key);
if ($layout === MegaMenuInterface::NO_LAYOUT) {
continue;
}
$build['#items'][$item_key]['attributes']['data-mega-menu-content-target'] = $item_key;
/** @var LayoutInterface $layout_plugin */
$layout_plugin = $this->layoutPluginManager->createInstance($layout);
$plugin_definition = $layout_plugin->getPluginDefinition();
// Build an array of the region names in the right order.
$empty = array_fill_keys(array_keys($plugin_definition['region_names']), []);
$full = $mega_menu->getBlocksByLink($safe_item_key)->getAllByRegion();
// Merge it with the actual values to maintain the ordering.
$block_assignments = array_intersect_key(array_merge($empty, $full), $empty);
$build['#items'][$item_key]['content'] = ['#prefix' => '<div data-mega-menu-content="' . $item_key . '" class="mega-menu-content">', '#suffix' => '</div>', '#theme' => $plugin_definition['theme'], '#settings' => [], '#layout' => $plugin_definition];
if (isset($plugin_definition['library'])) {
$build['#items'][$item_key]['content']['#attached']['library'][] = $plugin_definition['library'];
}
foreach ($block_assignments as $region => $blocks) {
$build['#items'][$item_key]['content'][$region] = [];
/** @var \Drupal\Core\Block\BlockPluginInterface[] $blocks */
foreach ($blocks as $block_id => $block) {
if ($block instanceof ContextAwarePluginInterface) {
$contexts = $this->contextRepository->getRuntimeContexts($block->getContextMapping());
$this->contextHandler->applyContextMapping($block, $contexts);
}
// Make sure the user is allowed to view the block.
$access = $block->access($this->account, TRUE);
$cacheability->addCacheableDependency($access);
// If the user is not allowed then do not render the block.
if (!$access->isAllowed()) {
continue;
}
$configuration = $block->getConfiguration();
// Create the render array for the block as a whole.
// @see template_preprocess_block().
$block_build = ['#theme' => 'block', '#attributes' => [], '#weight' => $configuration['weight'], '#configuration' => $configuration, '#plugin_id' => $block->getPluginId(), '#base_plugin_id' => $block->getBaseId(), '#derivative_plugin_id' => $block->getDerivativeId(), '#block_plugin' => $block, '#pre_render' => [[$this, 'preRenderBlock']], '#cache' => ['keys' => ['mega_menu', $mega_menu->id(), 'block', $block_id], 'tags' => Cache::mergeTags($mega_menu->getCacheTags(), $block->getCacheTags()), 'contexts' => $block->getCacheContexts(), 'max-age' => $block->getCacheMaxAge()]];
$build['#items'][$item_key]['content'][$region][$block_id] = $block_build;
$cacheability->addCacheableDependency($block);
}
}
}
$cacheability->applyTo($build);
return $build;
}
/**
* {@inheritdoc}
*/
public function build()
{
$menu_name = $this->getDerivativeId();
$parameters = $this->menuTree->getCurrentRouteMenuTreeParameters($menu_name);
// Adjust the menu tree parameters based on the block's configuration.
$level = $this->configuration['level'];
$depth = $this->configuration['depth'];
$parameters->setMinDepth($level);
// When the depth is configured to zero, there is no depth limit. When depth
// is non-zero, it indicates the number of levels that must be displayed.
// Hence this is a relative depth that we must convert to an actual
// (absolute) depth, that may never exceed the maximum depth.
if ($depth > 0) {
$parameters->setMaxDepth(min($level + $depth - 1, $this->menuTree->maxDepth()));
}
$tree = $this->menuTree->load($menu_name, $parameters);
$manipulators = array(array('callable' => 'menu.default_tree_manipulators:checkAccess'), array('callable' => 'menu.default_tree_manipulators:generateIndexAndSort'));
$tree = $this->menuTree->transform($tree, $manipulators);
return $this->menuTree->build($tree);
}
