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<?php |
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/** |
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* FilterManager.php |
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* |
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* @copyright More in license.md |
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* @license https://www.ipublikuj.eu |
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* @author Adam Kadlec <[email protected]> |
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* @package iPublikuj:Widgets! |
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* @subpackage Managers |
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* @since 1.0.0 |
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* |
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* @date 26.06.15 |
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*/ |
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declare(strict_types = 1); |
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namespace IPub\Widgets\Managers; |
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use Nette; |
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use IPub\Widgets\Exceptions; |
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use IPub\Widgets\Filters; |
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/** |
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* Registered widgets filters manager |
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* |
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* @package iPublikuj:Widgets! |
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* @subpackage Managers |
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* |
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* @author Adam Kadlec <[email protected]> |
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*/ |
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final class FiltersManager implements \ArrayAccess, \IteratorAggregate |
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{ |
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/** |
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* Implement nette smart magic |
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*/ |
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use Nette\SmartObject; |
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/** |
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* @var \SplPriorityQueue |
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*/ |
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private $filters = []; |
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/** |
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* @var Filters\IFactory[] |
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*/ |
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private $factories = []; |
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public function __construct() |
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{ |
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$this->filters = new \SplPriorityQueue(); |
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} |
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/** |
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* Check if a filter is registered |
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* |
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* @param string $name |
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* |
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* @return boolean |
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*/ |
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public function has(string $name) : bool |
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{ |
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return isset($this->factories[$name]); |
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} |
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/** |
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* Returns a registered filter class |
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* |
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* @param string $name |
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* |
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* @return Filters\IFactory|NULL |
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*/ |
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public function get(string $name) : ?Filters\IFactory |
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{ |
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return $this->has($name) ? $this->factories[$name] : NULL; |
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} |
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/** |
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* Register a filter class name |
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* |
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* @param Filters\IFactory $filter |
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* @param string $name |
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* @param int $priority |
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* |
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* @return void |
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*/ |
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public function register(Filters\IFactory $filter, string $name, int $priority = 0) : void |
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{ |
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$this->unregister($name); |
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$this->filters->insert($name, $priority); |
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$this->factories[$name] = $filter; |
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} |
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/** |
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* Unregisters a filter |
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* |
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* @param string $name |
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* |
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* @return void |
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*/ |
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public function unregister(string $name) : void |
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{ |
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if ($this->has($name)) { |
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unset($this->factories[$name]); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getIterator() |
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{ |
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$filters = []; |
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$this->filters->rewind(); |
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while ($this->filters->valid()) { |
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$filter = $this->filters->current(); |
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if ($this->has($filter)) { |
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$filters[$filter] = $this->get($filter); |
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} |
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$this->filters->next(); |
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} |
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return new \ArrayIterator($filters); |
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} |
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/** |
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* Implements the \ArrayAccess |
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* |
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* @param string $offset |
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* |
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* @return bool |
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*/ |
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public function offsetExists($offset) |
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{ |
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return isset($this->factories[$offset]); |
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} |
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/** |
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* Implements the \ArrayAccess |
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* |
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* @param string $offset |
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* |
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* @return mixed |
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*/ |
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public function offsetGet($offset) |
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{ |
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return $this->factories[$offset]; |
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} |
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/** |
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* Implements the \ArrayAccess |
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* |
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* @param string $offset |
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* @param string[]|NULL $value |
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* |
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* @throws Exceptions\InvalidStateException |
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*/ |
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public function offsetSet($offset, $value) |
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{ |
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throw new Exceptions\InvalidStateException('Use "register" method for adding item.'); |
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} |
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/** |
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* Implements the \ArrayAccess |
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* |
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* @param string $offset |
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* |
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* @throws Exceptions\InvalidStateException |
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*/ |
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public function offsetUnset($offset) |
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{ |
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throw new Exceptions\InvalidStateException('Use "unregister" method for adding item.'); |
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} |
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} |
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