Add quick form add form

modules/core/quick/farm_quick.links.action.yml

@@ -0,0 +1,5 @@
+farm_quick.add_page:
+  title: 'Add quick form'
+  route_name: farm_quick.add_page
+  appears_on:
+   - entity.quick_form.collection

modules/core/quick/farm_quick.routing.yml

@@ -18,5 +18,24 @@ farm_quick.configure:
       quick_form:
         type: string
 
+farm_quick.add_page:
+  path: 'setup/quick/add'
+  defaults:
+    _controller: \Drupal\farm_quick\Controller\QuickFormAddPage::addPage
+    _title: 'Add quick form'
+  requirements:
+    _permission: 'create quick_form'
+
+farm_quick.add_form:
+  path: '/setup/quick/add/{plugin}'
+  defaults:
+    _entity_form: quick_form.add
+  requirements:
+    _permission: 'create quick_form'
+  options:
+    parameters:
+      plugin:
+        type: string
+
 route_callbacks:
   - '\Drupal\farm_quick\Routing\QuickFormRoutes::routes'

modules/core/quick/src/Controller/QuickFormAddPage.php

@@ -0,0 +1,74 @@
+<?php
+
+namespace Drupal\farm_quick\Controller;
+
+use Drupal\Core\Controller\ControllerBase;
+use Drupal\Core\Link;
+use Drupal\farm_quick\QuickFormPluginManager;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Page that renders links to create instances of quick form plugins.
+ */
+class QuickFormAddPage extends ControllerBase {
+
+  /**
+   * The quick form plugin manager.
+   *
+   * @var \Drupal\farm_quick\QuickFormPluginManager
+   */
+  protected $quickFormPluginManager;
+
+  /**
+   * Constructs a new QuickFormAddPage object.
+   */
+  public function __construct(QuickFormPluginManager $quick_form_plugin_manager) {
+    $this->quickFormPluginManager = $quick_form_plugin_manager;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    return new static(
+      $container->get('plugin.manager.quick_form'),
+    );
+  }
+
+  /**
+   * Add quick form page callback.
+   *
+   * @return array
+   *   Render array.
+   */
+  public function addPage(): array {
+
+    $render = [
+      '#theme' => 'entity_add_list',
+      '#bundles' => [],
+      '#cache' => [
+        'tags' => $this->quickFormPluginManager->getCacheTags(),
+      ],
+    ];
+
+    // Filter to configurable quick form plugins.
+    $plugins = array_filter($this->quickFormPluginManager->getDefinitions(), function (array $plugin) {
+      if (($instance = $this->quickFormPluginManager->createInstance($plugin['id'])) && $instance->isConfigurable()) {
+        return TRUE;
+      }
+      return FALSE;
+    });
+
+    // Add link for each configurable plugin.
+    foreach ($plugins as $plugin_id => $plugin) {
+      $render['#bundles'][$plugin_id] = [
+        'label' => $plugin['label'],
+        'description' => $plugin['description'] ?? '',
+        'add_link' => Link::createFromRoute($plugin['label'], 'farm_quick.add_form', ['plugin' => $plugin_id]),
+      ];
+    }
+
+    return $render;
+  }
+
+}

modules/core/quick/src/Entity/QuickFormInstance.php

@@ -25,6 +25,7 @@ use Drupal\farm_quick\QuickFormPluginCollection;
  *     "permission_provider" = "\Drupal\entity\EntityPermissionProvider",
  *     "list_builder" = "Drupal\farm_quick\QuickFormListBuilder",
  *     "form" = {
+ *       "add" = "Drupal\farm_quick\Form\QuickFormEntityForm",
  *       "edit" = "Drupal\farm_quick\Form\QuickFormEntityForm",
  *       "configure" = "Drupal\farm_quick\Form\ConfigureQuickForm",
  *       "delete" = "\Drupal\Core\Entity\EntityDeleteForm",

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

@@ -5,6 +5,11 @@ namespace Drupal\farm_quick\Form;
 use Drupal\Core\Entity\EntityForm;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Form\SubformState;
+use Drupal\Core\Routing\RouteMatchInterface;
+use Drupal\farm_quick\Entity\QuickFormInstance;
+use Drupal\farm_quick\QuickFormPluginManager;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 
 /**
  * Form that renders quick form configuration forms.
@@ -18,6 +23,32 @@ class QuickFormEntityForm extends EntityForm {
    */
   protected $entity;
 
+  /**
+   * The quick form plugin manager.
+   *
+   * @var \Drupal\farm_quick\QuickFormPluginManager
+   */
+  protected $quickFormPluginManager;
+
+  /**
+   * Constructs a new QuickFormEntityForm object.
+   *
+   * @param \Drupal\farm_quick\QuickFormPluginManager $quick_form_plugin_manager
+   *   The quick form plugin manager.
+   */
+  public function __construct(QuickFormPluginManager $quick_form_plugin_manager) {
+    $this->quickFormPluginManager = $quick_form_plugin_manager;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    return new static(
+      $container->get('plugin.manager.quick_form'),
+    );
+  }
+
   /**
    * {@inheritdoc}
    */
@@ -55,7 +86,6 @@ class QuickFormEntityForm extends EntityForm {
     $form['label'] = [
       '#type' => 'textfield',
       '#title' => $this->t('Label'),
-      '#default_value' => $this->entity->label(),
       '#maxlength' => 255,
       '#required' => TRUE,
       '#group' => $tab_group,
@@ -63,14 +93,31 @@ class QuickFormEntityForm extends EntityForm {
 
     $form['id'] = [
       '#type' => 'machine_name',
-      '#default_value' => $this->entity->id(),
       '#machine_name' => [
         'exists' => '\Drupal\farm_quick\Entity\QuickFormInstance::load',
       ],
-      '#disabled' => !$this->entity->isNew(),
+      '#disabled' => !$this->entity->isNew() || $this->getRequest()->get('override'),
       '#group' => $tab_group,
     ];
 
+    // Provide default label and ID for existing config entities
+    // or if the override parameter is set.
+    if (!$this->entity->isNew() || $this->getRequest()->get('override')) {
+      $form['label']['#default_value'] = $this->entity->label();
+      $form['id']['#default_value'] = $this->entity->id();
+    }
+
+    // Adjust form title.
+    if ($this->entity->isNew()) {
+      $form['#title'] = $this->t('Add quick form: @label', ['@label' => $this->entity->getPlugin()->getLabel()]);
+      if ($this->getRequest()->get('override')) {
+        $form['#title'] = $this->t('Override quick form: @label', ['@label' => $this->entity->getPlugin()->getLabel()]);
+      }
+    }
+    else {
+      $form['#title'] = $this->t('Edit quick form: @label', ['@label' => $this->entity->label()]);
+    }
+
     $form['description'] = [
       '#type' => 'textfield',
       '#title' => $this->t('Description'),
@@ -122,4 +169,30 @@ class QuickFormEntityForm extends EntityForm {
     }
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function getEntityFromRouteMatch(RouteMatchInterface $route_match, $entity_type_id) {
+
+    // Get existing quick form entity from route parameter.
+    if ($route_match->getRawParameter($entity_type_id) !== NULL) {
+      $entity = $route_match->getParameter($entity_type_id);
+    }
+    // Else create a new quick form entity, the plugin must be specified.
+    else {
+      if (($plugin = $route_match->getRawParameter('plugin')) && $this->quickFormPluginManager->hasDefinition($plugin)) {
+        $entity = QuickFormInstance::create(['plugin' => $plugin]);
+        if ($this->getRequest()->get('override')) {
+          $entity->set('id', $plugin);
+        }
+      }
+    }
+
+    if (empty($entity)) {
+      throw new NotFoundHttpException();
+    }
+
+    return $entity;
+  }
+
 }

modules/core/quick/src/QuickFormListBuilder.php

@@ -6,6 +6,7 @@ use Drupal\Core\Config\Entity\ConfigEntityListBuilder;
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Entity\EntityStorageInterface;
 use Drupal\Core\Entity\EntityTypeInterface;
+use Drupal\Core\Url;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
@@ -130,4 +131,27 @@ class QuickFormListBuilder extends ConfigEntityListBuilder {
     return $row + parent::buildRow($entity);
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function getDefaultOperations(EntityInterface $entity) {
+    $operations = parent::getDefaultOperations($entity);
+
+    // Override operations for default quick form instances.
+    if ($entity->isNew()) {
+
+      // Remove edit operation.
+      unset($operations['edit']);
+
+      // Add override operation.
+      $operations['override'] = [
+        'title' => $this->t('Override'),
+        'weight' => 0,
+        'url' => $this->ensureDestination(Url::fromRoute('farm_quick.add_form', ['plugin' => $entity->getPluginId()], ['query' => ['override' => TRUE]])),
+      ];
+    }
+
+    return $operations;
+  }
+
 }