add event when a page is edited in order to add specific options in the form

core/Controller/Site/PageAdminController.php

@@ -15,6 +15,8 @@ use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpFoundation\Session\Session;
 use Symfony\Component\Routing\Annotation\Route;
+use App\Core\Event\Page\PageEditEvent;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 
 class PageAdminController extends CrudController
 {
@@ -50,12 +52,17 @@ class PageAdminController extends CrudController
         EntityManager $entityManager,
         RepositoryQuery $repositoryQuery,
         PageLocator $pageLocator,
+        EventDispatcherInterface $eventDispatcher,
         Request $request
     ): Response {
         $entity = $repositoryQuery->filterById($entity)->findOne();
 
+        $event = new PageEditEvent($entity);
+        $eventDispatcher->dispatch($event, PageEditEvent::FORM_INIT_EVENT);
+
         $this->getConfiguration()->setFormOptions('edit', [
-            'pageConfiguration' => $pageLocator->getPage(get_class($entity)),
+            'page_configuration' => $pageLocator->getPage(get_class($entity)),
+            'page_builder_options' => $event->getPageBuilderOptions(),
         ]);
 
         return $this->doEdit($entity, $entityManager, $request);

core/Entity/Site/Page/Page.php

@@ -140,7 +140,7 @@ class Page implements EntityInterface
         return $this;
     }
 
-    public function buildForm(FormBuilderInterface $builder)
+    public function buildForm(FormBuilderInterface $builder, array $options)
     {
     }
 

core/Event/Page/PageEditEvent.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace App\Core\Event\Page;
+
+use Symfony\Contracts\EventDispatcher\Event;
+use App\Core\Entity\Site\Page\Page;
+
+/**
+ * class PageEditEvent.
+ *
+ * @author Simon Vieille <simon@deblan.fr>
+ */
+class PageEditEvent extends Event
+{
+    const FORM_INIT_EVENT = 'page_edit_event.form_init';
+
+    protected Page $page;
+    protected array $pageBuilderOptions = [];
+
+    public function __construct(Page $page)
+    {
+        $this->page = $page;
+    }
+
+    public function getPage()
+    {
+        return $this->page;
+    }
+
+    public function getPageBuilderOptions(): array
+    {
+        return $this->pageBuilderOptions;
+    }
+
+    public function addPageBuilderOptions(array $options): self
+    {
+        $this->pageBuilderOptions = array_merge(
+            $this->pageBuilderOptions,
+            $options
+        );
+
+        return $this;
+    }
+}

core/Form/Site/Page/PageType.php

@@ -105,7 +105,7 @@ class PageType extends AbstractType
                 'choices' => call_user_func(function () use ($options) {
                     $choices = [];
 
-                    foreach ($options['pageConfiguration']->getTemplates() as $template) {
+                    foreach ($options['page_configuration']->getTemplates() as $template) {
                         $choices[$template['name']] = $template['file'];
                     }
 
@@ -119,14 +119,15 @@ class PageType extends AbstractType
             ]
         );
 
-        $builder->getData()->buildForm($builder);
+        $builder->getData()->buildForm($builder, $options['page_builder_options']);
     }
 
     public function configureOptions(OptionsResolver $resolver)
     {
         $resolver->setDefaults([
             'data_class' => Page::class,
-            'pageConfiguration' => null,
+            'page_configuration' => null,
+            'page_builder_options' => [],
         ]);
     }
 }