Issue #3519846: Support OOP hooks

Closes #3519846

src/Hook/AlterHooks.php

+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\queue_ui\Hook;
+
+use Drupal\Core\State\StateInterface;
+use Drupal\Core\Hook\Attribute\Hook;
+
+/**
+ * Class for the queue_ui alter hooks.
+ */
+class AlterHooks {
+
+  /**
+   * The state service.
+   *
+   * @var \Drupal\Core\State\StateInterface
+   */
+  protected StateInterface $state;
+
+  /**
+   * Constructor to inject the state service.
+   *
+   * @param \Drupal\Core\State\StateInterface $state
+   *   The state service.
+   */
+  public function __construct(StateInterface $state) {
+    $this->state = $state;
+  }
+
+  /**
+   * Hook_queue_info_alter()
+   */
+  #[Hook('queue_info_alter')]
+  public function queueInfoAlter(&$queues, $method) {
+    foreach ($queues as $queueName => $definition) {
+      // Check if a time limit override exists for this queue.
+      $time_limit = $this->state->get('queue_ui_cron_' . $queueName);
+      if ($time_limit === NULL) {
+        // Queue UI didn't manage this queue yet.
+        continue;
+      }
+      $time_limit = (string) $time_limit;
+      // Check for the value including 0.
+      if ($time_limit !== '') {
+        // Override the original definition.
+        $queues[$queueName]['cron']['time'] = (int) $time_limit;
+      }
+      else {
+        // Disable cron.
+        unset($queues[$queueName]['cron']);
+      }
+    }
+  }
+
+}