Initial Drupal 11 with DDEV setup

web/modules/contrib/devel/src/Form/SwitchUserPageForm.php

@@ -0,0 +1,73 @@
+<?php
+
+namespace Drupal\devel\Form;
+
+use Drupal\Core\Form\FormBase;
+use Drupal\Core\Form\FormBuilderInterface;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\devel\SwitchUserListHelper;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Define an accessible form to switch the user.
+ */
+class SwitchUserPageForm extends FormBase {
+
+  /**
+   * The FormBuilder object.
+   */
+  protected FormBuilderInterface $formBuilder;
+
+  /**
+   * A helper for creating the user list form.
+   */
+  protected SwitchUserListHelper $switchUserListHelper;
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container): static {
+    $instance = parent::create($container);
+    $instance->switchUserListHelper = $container->get('devel.switch_user_list_helper');
+    $instance->formBuilder = $container->get('form_builder');
+
+    return $instance;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFormId(): string {
+    return 'devel_switchuser_page_form';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildForm(array $form, FormStateInterface $form_state): array {
+    if ($accounts = $this->switchUserListHelper->getUsers()) {
+      $form['devel_links'] = $this->switchUserListHelper->buildUserList($accounts);
+      $form['devel_form'] = $this->formBuilder->getForm(SwitchUserForm::class);
+    }
+    else {
+      $this->messenger->addStatus('There are no user accounts present!');
+    }
+
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function validateForm(array &$form, FormStateInterface $form_state): void {
+    // Nothing to do here. This is delegated to devel.switch via http call.
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitForm(array &$form, FormStateInterface $form_state): void {
+    // Nothing to do here. This is delegated to devel.switch via http call.
+  }
+
+}