public function ContainerAwareEventDispatcher::removeListener

phpcs:ignore Drupal.Commenting.FunctionComment.VoidReturn

Return value

void

File

core/lib/Drupal/Component/EventDispatcher/ContainerAwareEventDispatcher.php, line 235

Class

ContainerAwareEventDispatcher

A performance optimized container aware event dispatcher.

Namespace

Code

public function removeListener($event_name, $listener) {
  if (!isset($this->listeners[$event_name])) {
    return;
  }
  foreach ($this->listeners[$event_name] as $priority => $definitions) {
    foreach ($definitions as $key => $definition) {
      if (!isset($definition['callable'])) {
        if (!$this->container
          ->initialized($definition['service'][0])) {
          continue;
        }
        $definition['callable'] = [
          $this->container
            ->get($definition['service'][0]),
          $definition['service'][1],
        ];
      }
      if (is_array($definition['callable']) && isset($definition['callable'][0]) && $definition['callable'][0] instanceof \Closure && !$listener instanceof \Closure) {
        $definition['callable'][0] = $definition['callable'][0]();
      }
      if (is_array($definition['callable']) && isset($definition['callable'][0]) && !$definition['callable'][0] instanceof \Closure && is_array($listener) && isset($listener[0]) && $listener[0] instanceof \Closure) {
        $listener[0] = $listener[0]();
      }
      if ($definition['callable'] === $listener) {
        unset($definitions[$key]);
      }
    }
    if ($definitions) {
      $this->listeners[$event_name][$priority] = $definitions;
    }
    else {
      unset($this->listeners[$event_name][$priority]);
    }
  }
}