Add a ConfigureQuickForm for building, validating, and submitting configuration forms.

modules/core/quick/src/Form/ConfigureQuickForm.php

@@ -0,0 +1,91 @@
+<?php
+
+namespace Drupal\farm_quick\Form;
+
+use Drupal\Core\Access\AccessResult;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Session\AccountInterface;
+
+/**
+ * Form that renders quick form configuration forms.
+ *
+ * @ingroup farm
+ */
+class ConfigureQuickForm extends QuickForm {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getBaseFormId() {
+    return 'configure_quick_form';
+  }
+
+  /**
+   * Get the title of the quick form.
+   *
+   * @param string $id
+   *   The quick form ID.
+   *
+   * @return string
+   *   Quick form title.
+   */
+  public function getTitle(string $id) {
+    $quick_form_title = $this->quickFormInstanceManager->createInstance($id)->getLabel();
+    return $this->t('Configure @quick_form', ['@quick_form' => $quick_form_title]);
+  }
+
+  /**
+   * Checks access for configuration of a specific quick form.
+   *
+   * @param \Drupal\Core\Session\AccountInterface $account
+   *   Run access checks for this account.
+   * @param string $id
+   *   The quick form ID.
+   *
+   * @return \Drupal\Core\Access\AccessResultInterface
+   *   The access result.
+   */
+  public function access(AccountInterface $account, string $id) {
+    $configure_form_access = AccessResult::allowedIfHasPermissions($account, ['configure quick forms']);
+    return parent::access($account, $id)->andIf($configure_form_access);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildForm(array $form, FormStateInterface $form_state, $id = NULL) {
+
+    // Save the quick form ID.
+    $this->quickFormId = $id;
+
+    // Load the quick form's configuration form.
+    $form = $this->quickFormInstanceManager->createInstance($id)->getPlugin()->buildConfigurationForm($form, $form_state);
+
+    // Add a submit button.
+    $form['actions'] = [
+      '#type' => 'actions',
+      '#weight' => 1000,
+    ];
+    $form['actions']['submit'] = [
+      '#type' => 'submit',
+      '#value' => $this->t('Save'),
+    ];
+
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function validateForm(array &$form, FormStateInterface $form_state) {
+    $this->quickFormInstanceManager->createInstance($this->quickFormId)->getPlugin()->validateConfigurationForm($form, $form_state);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitForm(array &$form, FormStateInterface $form_state) {
+    $this->quickFormInstanceManager->createInstance($this->quickFormId)->getPlugin()->submitConfigurationForm($form, $form_state);
+  }
+
+}