/**
* Returns the collection of routes in the source.
*
* @return RouterInterface
* The requested link collection.
*/
public function getSourceRoutes()
{
if (empty($this->sourceRoutes)) {
$this->sourceRoutes = new Drupal7Router();
$items = call_user_func($this->target->id() . '_menu');
foreach ($items as $path => $item) {
$this->sourceRoutes->addRoute(new Drupal7Route($path, $item));
}
// Now that all routes have been loaded, tell them to resolve their
// hierarchical relationships.
$this->sourceRoutes->finalize();
}
return $this->sourceRoutes;
}
/**
* {@inheritdoc}
*/
public function onRouterBuilt(RouterBuiltEvent $event)
{
$this->router = $event->getRouter();
$my_path = $this->getPath();
$my_length = sizeof($my_path);
$my_path = (string) $my_path;
// If trying to get the parent raises an exception, we're going to
// bail out. But we don't need the parent in order to find our own
// children, so search for them before searching for the parent.
$this->children = $this->router->filter(function (RouteWrapper $route) use($my_path, $my_length) {
$path = $route->getPath();
// <WTF>$path needs to be explicitly cast to a string, 'cause strPos() won't do
// it, even though trim() and similar functions will.</WTF>
return sizeof($path) == $my_length + 1 && strPos((string) $path, $my_path) === 0;
})->ofType('MENU_LOCAL_TASK, MENU_DEFAULT_LOCAL_TASK, MENU_LOCAL_ACTION');
try {
$parent = $this->getPath()->getParent();
$this->parent = $this->router->get($parent->__toString());
} catch (\LengthException $e) {
// Because there's no parent path, we can't effectively search for siblings.
// Time to die.
return;
}
$this->siblings = $this->router->filter(function (RouteWrapper $route) use($parent, $my_path, $my_length) {
$path = $route->getPath();
// <WTF>strPos(), <sarcasm>in its wisdom</sarcasm>, won't cast to string.</WTF>
return $path !== $my_path && sizeof($path) == $my_length && strPos((string) $path, (string) $parent) === 0;
});
}