/**
* {@inheritdoc}
*/
public function getCurrentRouteMenuTreeParameters($menu_name)
{
$active_trail = $this->menuActiveTrail->getActiveTrailIds($menu_name);
$parameters = new MenuTreeParameters();
$parameters->setActiveTrail($active_trail)->addExpandedParents($active_trail)->addExpandedParents($this->treeStorage->getExpanded($menu_name, $active_trail));
return $parameters;
}
/**
* {@inheritdoc}
*/
public function build()
{
$items = [];
$current_id = $this->active->getActiveLink('main')->getPluginId();
while (!empty($current_id)) {
$current_link = $this->linkManager->createInstance($current_id);
/** @var MenuLinkContent $current_link */
$link = new Link($current_link->getTitle(), $current_link->getUrlObject());
$items[] = $link;
$current_id = $current_link->getParent();
}
$breadcrumbs = new Breadcrumb();
$breadcrumbs->setLinks(array_reverse($items));
return $breadcrumbs->toRenderable();
}
/**
* Loads the contents of a menu block.
*
* This function is often a destination for these blocks.
* For example, 'admin/structure/types' needs to have a destination to be
* valid in the Drupal menu system, but too much information there might be
* hidden, so we supply the contents of the block.
*
* @return array
* A render array suitable for drupal_render.
*/
public function getBlockContents()
{
// We hard-code the menu name here since otherwise a link in the tools menu
// or elsewhere could give us a blank block.
$link = $this->menuActiveTrail->getActiveLink('admin');
if ($link && ($content = $this->getAdminBlock($link))) {
$output = array('#theme' => 'admin_block_content', '#content' => $content);
} else {
$output = array('#markup' => t('You do not have any administrative items.'));
}
return $output;
}
/**
* {@inheritdoc}
*/
public function getCurrentRouteMenuTreeParameters($menu_name)
{
$route_parameters = $this->routeMatch->getRawParameters()->all();
ksort($route_parameters);
$cid = 'current-route-parameters:' . $menu_name . ':route:' . $this->routeMatch->getRouteName() . ':route_parameters:' . serialize($route_parameters);
if (!isset($this->cachedCurrentRouteParameters[$menu_name])) {
$cache = $this->cache->get($cid);
if ($cache && $cache->data) {
$parameters = $cache->data;
} else {
$active_trail = $this->menuActiveTrail->getActiveTrailIds($menu_name);
$parameters = new MenuTreeParameters();
$parameters->setActiveTrail($active_trail)->addExpandedParents($active_trail)->addExpandedParents($this->treeStorage->getExpanded($menu_name, $active_trail));
$this->cache->set($cid, $parameters, CacheBackendInterface::CACHE_PERMANENT, array('menu' => $menu_name));
}
$this->cachedCurrentRouteParameters[$menu_name] = $parameters;
}
return $this->cachedCurrentRouteParameters[$menu_name];
}
/**
* {@inheritdoc}
*/
public function getCacheKeys()
{
// Add a key for the active menu trail.
$menu = $this->getDerivativeId();
return array_merge(parent::getCacheKeys(), array($this->menuActiveTrail->getActiveTrailCacheKey($menu)));
}
