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<?php |
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namespace hiapi\event; |
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use League\Event\Emitter; |
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use League\Event\EmitterInterface; |
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use League\Event\ListenerInterface; |
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use yii\base\InvalidConfigException; |
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use yii\base\UnknownPropertyException; |
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use yii\di\Container; |
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use yii\helpers\StringHelper; |
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/** |
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* Class ConfigurableEmitter |
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* |
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* @author Dmytro Naumenko <[email protected]> |
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*/ |
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class ConfigurableEmitter extends Emitter implements EmitterInterface |
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{ |
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/** |
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* @var Container |
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*/ |
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private $container; |
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/** |
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* ConfigurableEmitter constructor. |
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* |
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* @param Container $container |
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*/ |
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public function __construct(Container $container) |
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{ |
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$this->container = $container; |
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} |
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public function __set($name, $value) |
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{ |
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if ($name === 'listeners') { |
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$this->setListeners($value); |
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return; |
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} |
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throw new UnknownPropertyException('Property "' . $name . '" is not available.'); |
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} |
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/** |
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* Allows to set listeners with standard Yii configuration system |
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* |
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* @param array[] $listeners |
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* @return $this |
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* @throws InvalidConfigException |
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*/ |
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public function setListeners(array $listeners = []) |
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{ |
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foreach ($listeners as $listener) { |
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if (!isset($listener['event']) || !isset($listener['listener'])) { |
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throw new InvalidConfigException('Both "event" and "listener" properties are required to attach a listener.'); |
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} |
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if (is_string($listener['listener'])) { |
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$listener['listener'] = $this->listenerFromClassName($listener['listener']); |
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} |
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$this->addListener($listener['event'], $listener['listener'], $listener['priority'] ?? self::P_NORMAL); |
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} |
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return $this; |
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} |
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/** |
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* @param $className |
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* @return \Closure |
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*/ |
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private function listenerFromClassName(string $className): \Closure |
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{ |
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return function ($event) use ($className) { |
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/** @var ListenerInterface $handler */ |
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$listener = $this->container->get($className); |
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$listener->handle($event); |
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}; |
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} |
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public function hasListeners($event) |
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{ |
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if (parent::hasListeners($event)) { |
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return true; |
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} |
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$namesWithWildcard = array_filter(array_keys($this->listeners), function ($name) { |
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return $name !== '*' && strpos($name, '*') !== false; |
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}); |
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foreach ($namesWithWildcard as $name) { |
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if (StringHelper::matchWildcard('*', $name)) { |
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return true; |
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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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* Get the listeners sorted by priority for a given event. |
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* |
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* @param string $event |
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* |
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* @return ListenerInterface[] |
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*/ |
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protected function getSortedListeners($event) |
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{ |
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if (! $this->hasListeners($event)) { |
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return []; |
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} |
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$listeners = $this->listeners[$event] ?? []; |
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if ($event !== '*') { |
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$namesWithWildcard = array_filter(array_keys($this->listeners), function ($name) { |
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return $name !== '*' && strpos($name, '*') !== false; |
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}); |
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foreach ($namesWithWildcard as $name) { |
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if (StringHelper::matchWildcard('*', $name)) { |
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$listeners = array_merge($listeners, $this->listeners[$name]); |
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} |
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} |
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} |
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krsort($listeners); |
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return call_user_func_array('array_merge', $listeners); |
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} |
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} |
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hiqdev /
hiapi
