function DevelCommands::interactEvent

Asks the user to select an event and the event's implementation.

File

src/Drush/Commands/DevelCommands.php, line 177

Class

DevelCommands

Namespace

Code

public function interactEvent(Input $input, Output $output) : void {
    $event = $input->getArgument('event');
    if (!$event) {
        // @todo Expand this list.
        $events = [
            'kernel.controller',
            'kernel.exception',
            'kernel.request',
            'kernel.response',
            'kernel.terminate',
            'kernel.view',
        ];
        $events = array_combine($events, $events);
        if (!($event = $this->io()
            ->select('Enter the event you wish to explore.', $events))) {
            throw new UserAbortException();
        }
        $input->setArgument('event', $event);
    }
    
    /** @var \Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher $event_dispatcher */
    $event_dispatcher = $this->eventDispatcher;
    if ($implementations = $event_dispatcher->getListeners($event)) {
        $choices = [];
        foreach ($implementations as $implementation) {
            $callable = $implementation[0]::class . '::' . $implementation[1];
            $choices[$callable] = $callable;
        }
        if (!($choice = $this->io()
            ->select('Enter the number of the implementation you wish to view.', $choices))) {
            throw new UserAbortException();
        }
        $input->setArgument('implementation', $choice);
    }
    else {
        throw new \Exception(dt('No implementations.'));
    }
}