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<?php |
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/* |
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* This file is part of the slince/event-dispatcher package. |
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* |
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* (c) Slince <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Slince\EventDispatcher; |
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class CallableListener implements ListenerInterface |
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{ |
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/** |
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* The callable callback. |
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* |
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* @var callable |
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*/ |
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protected $callable; |
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/** |
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* Array of callable-listeners. |
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* |
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* @var array |
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*/ |
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protected static $listeners = []; |
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public function __construct($callable) |
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{ |
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$this->callable = $callable; |
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static::$listeners[] = $this; |
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} |
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/** |
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* Gets callback. |
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* |
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* @return callable |
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*/ |
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public function getCallable() |
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{ |
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return $this->callable; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function handle(Event $event) |
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{ |
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call_user_func($this->callable, $event); |
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} |
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/** |
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* Creates a callable-listener. |
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* |
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* @param callable $callable |
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* |
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* @return CallableListener |
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*/ |
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public static function createFromCallable($callable) |
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{ |
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$listener = new static($callable); |
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return $listener; |
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} |
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/** |
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* Finds the listener from the collection by its callable. |
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* |
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* @param callable $callable |
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* |
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* @return CallableListener|false |
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*/ |
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public static function findByCallable($callable) |
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{ |
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foreach (static::$listeners as $listener) { |
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if ($listener->getCallable() == $callable) { |
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return $listener; |
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} |
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} |
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return false; |
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} |
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/** |
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* Removes all registered callable-listeners. |
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*/ |
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public static function clearListeners() |
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{ |
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static::$listeners = []; |
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} |
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} |
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slince /
event-dispatcher
