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| Name | Lines | Functions and Methods | CRAP | Classes and Traits | ||||||
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| StoppableEvent | 100.00% | 2 / 2 | 100.00% | 2 / 2 | 2 | 100.00% | 1 / 1 | |||
| stopPropagation | 100.00% | 1 / 1 | 100.00% | 1 / 1 | 1 | |||||
| isPropagationStopped | 100.00% | 1 / 1 | 100.00% | 1 / 1 | 1 | |||||
| 1 | <?php | |
| 2 | declare(strict_types=1); | |
| 3 | ||
| 4 | ||
| 5 | namespace Lucent\EventDispatcher; | |
| 6 | ||
| 7 | use Psr\EventDispatcher\StoppableEventInterface; | |
| 8 | ||
| 9 | /** | |
| 10 | * Base class for events whose propagation may be halted. | |
| 11 | * | |
| 12 | * A listener may call {@see stopPropagation()} to prevent any remaining | |
| 13 | * listeners from being invoked for the event. The dispatcher checks | |
| 14 | * {@see isPropagationStopped()} after each listener. | |
| 15 | * | |
| 16 | * ```php | |
| 17 | * class UserCreated extends StoppableEvent | |
| 18 | * { | |
| 19 | * public function __construct(public readonly User $user) {} | |
| 20 | * } | |
| 21 | * ``` | |
| 22 | */ | |
| 23 | abstract class StoppableEvent implements StoppableEventInterface | |
| 24 | { | |
| 25 | /** | |
| 26 | * Whether propagation has been stopped. | |
| 27 | * | |
| 28 | * @var bool | |
| 29 | */ | |
| 30 | private bool $propagationStopped = false; | |
| 31 | ||
| 32 | /** | |
| 33 | * Stop further listeners from being invoked for this event. | |
| 34 | * | |
| 35 | * @return void | |
| 36 | */ | |
| 37 | public function stopPropagation(): void | |
| 38 | { | |
| 39 | $this->propagationStopped = true; | |
| 40 | } | |
| 41 | ||
| 42 | /** | |
| 43 | * Whether propagation has been stopped. | |
| 44 | * | |
| 45 | * @return bool True if no further listeners should be invoked | |
| 46 | */ | |
| 47 | public function isPropagationStopped(): bool | |
| 48 | { | |
| 49 | return $this->propagationStopped; | |
| 50 | } | |
| 51 | } |