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<?php |
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declare(strict_types=1); |
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namespace Everlution\Navigation\ContainerBuilder; |
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use Everlution\Navigation\ContainerInterface; |
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/** |
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* Class NavigationBuilder. |
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* |
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* @author Ivan Barlog <[email protected]> |
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*/ |
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class NavigationBuilder |
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{ |
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/** @var NavigationContainerInterface */ |
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private $container; |
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/** @var ParentNode */ |
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private $root; |
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/** @var ContainerInterface[] */ |
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private $stack = []; |
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/** @var ContainerInterface[] */ |
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private $used = []; |
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/** @var ParentNode */ |
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private $current; |
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/** @var ContainerMatcherInterface */ |
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private $matcher; |
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public function __construct(NavigationContainerInterface $container, ContainerMatcherInterface $matcher) |
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{ |
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$this->container = $container; |
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$this->matcher = $matcher; |
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$this->build($matcher); |
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} |
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/** |
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* @return ParentNode |
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* |
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* @throws NoCurrentItemFoundException |
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*/ |
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public function getCurrent(): ParentNode |
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{ |
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if (!$this->current) { |
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throw new NoCurrentItemFoundException(); |
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} |
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return $this->current; |
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} |
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private function build(ContainerMatcherInterface $matcher) |
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{ |
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$this->root = new ParentNode($this->getRootContainer($this->container->getRoot())); |
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$this->setCurrentNode($matcher, $this->root); |
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/** @var ContainerInterface $container */ |
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foreach ($this->container->getContainers() as $container) { |
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if ($container instanceof NestableInterface) { |
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$this->walkToRootContainer($container); |
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$this->addContainersFromStack(); |
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} |
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} |
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} |
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private function getParent(NestableInterface $item): ContainerInterface |
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{ |
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return $this->container->get($item->getParentNavigation()); |
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} |
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private function walkToRootContainer(ContainerInterface $container): ContainerInterface |
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{ |
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$this->stack[] = $container; |
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if (!$container instanceof NestableInterface) { |
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return $container; |
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} |
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return $this->walkToRootContainer($this->getParent($container)); |
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} |
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private function getRootContainer(ContainerInterface $container): ContainerInterface |
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{ |
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if (!$container instanceof NestableInterface) { |
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return $container; |
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} |
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return $this->getRootContainer($this->getParent($container)); |
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} |
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private function addContainersFromStack(): void |
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{ |
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$root = $this->root; |
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while ($container = array_pop($this->stack)) { |
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$this->addContainer($root, $container); |
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$root = $root->get(get_class($container)); |
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} |
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} |
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private function addContainer(ParentNode $root, ContainerInterface $container): void |
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{ |
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$name = get_class($container); |
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if (array_key_exists($name, $this->used)) { |
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return; |
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} |
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$parentNode = new ParentNode($container); |
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$parentNode->setParent($root); |
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$this->used[$name] = $parentNode; |
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$root->addChild($parentNode); |
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$this->setCurrentNode($this->matcher, $parentNode); |
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} |
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private function setCurrentNode(ContainerMatcherInterface $matcher, ParentNode $node): void |
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{ |
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if (!$this->current && $matcher->isCurrent($node->getContainer())) { |
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$this->current = $node; |
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} |
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} |
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} |
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everlutionsk /
navigation
