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<?php |
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namespace Alpixel\Bundle\AdminMenuBundle\Twig; |
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use Knp\Menu\ItemInterface; |
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use Knp\Menu\Matcher\MatcherInterface; |
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use Knp\Menu\Twig\Helper; |
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class MenuExtension extends \Twig_Extension |
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{ |
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/** |
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* @var Helper |
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*/ |
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private $helper; |
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/** |
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* @var MatcherInterface |
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*/ |
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private $matcher; |
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/** |
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* @param Helper $helper |
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* @param MatcherInterface $matcher |
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*/ |
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public function __construct(Helper $helper, MatcherInterface $matcher) |
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{ |
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$this->helper = $helper; |
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$this->matcher = $matcher; |
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} |
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/** |
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* @return array |
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*/ |
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public function getFunctions() |
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{ |
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return [ |
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new \Twig_SimpleFunction('knp_menu_get_current_item', [$this, 'getCurrentItem']), |
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]; |
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} |
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/** |
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* Retrieves the current item. |
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* |
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* @param ItemInterface|string $menu |
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* |
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* @return ItemInterface |
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*/ |
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public function getCurrentItem($menu) |
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{ |
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$rootItem = $this->helper->get($menu); |
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$currentItem = $this->retrieveCurrentItem($rootItem); |
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if (null === $currentItem) { |
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$currentItem = $rootItem; |
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} |
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return $currentItem; |
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} |
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/** |
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* @param ItemInterface $item |
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* |
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* @return ItemInterface|null |
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*/ |
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private function retrieveCurrentItem(ItemInterface $item) |
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{ |
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$currentItem = null; |
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if ($this->matcher->isCurrent($item)) { |
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return $item; |
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} |
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if ($this->matcher->isAncestor($item)) { |
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foreach ($item->getChildren() as $child) { |
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$currentItem = $this->retrieveCurrentItem($child); |
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if (null !== $currentItem) { |
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break; |
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} |
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} |
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} |
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return $currentItem; |
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} |
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/** |
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* @return string |
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*/ |
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public function getName() |
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{ |
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return 'menu'; |
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} |
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} |
alpixel /
AlpixelAdminMenuBundle
