admin_showroom can only edit sample of his own showroom

web/modules/custom/materio_samples/materio_samples.module

@@ -0,0 +1,20 @@
+<?php
+
+/**
+ * @file
+ * Contains materio_sapi.module.
+ */
+
+use Drupal\Core\Routing\RouteMatchInterface;
+use Solarium\QueryType\Select\Query\Query;
+use Drupal\search_api\Query\QueryInterface;
+use Drupal\Core\Template\Attribute;
+
+
+function materio_samples_form_node_materiau_edit_form_alter(&$form, \Drupal\Core\Form\FormStateInterface $form_state, $form_id){
+  // get current user
+  $user = \Drupal\user\Entity\User::load(\Drupal::currentUser()->id());
+  if(!$user->hasPermission('materio_samples_edit_materiaux_titles')){ 
+    $form['title']['#access'] = false;
+  }
+}

web/modules/custom/materio_samples/materio_samples.permissions.yml

@@ -0,0 +1,9 @@
+materio_samples_edit_materiaux_titles:
+  title: 'Edit titles of content type materiau'
+  description: 'Edit titles of content type materiau'
+  restrict access: true
+
+materio_samples_edit_any_sample:
+  title: 'Edit any sample'
+  description: 'Edit any sample'
+  restrict access: true

web/modules/custom/materio_samples/src/Plugin/Field/FieldWidget/SamplesDefaultWidget.php

@@ -98,6 +98,25 @@ class SamplesDefaultWidget extends WidgetBase {
     //   '#field_prefix' => '<div class="container-inline">',
     //   '#field_suffix' => '</div>',
     // ];
+
+    $disabled = true;
+    // get current user
+    $user = \Drupal\user\Entity\User::load(\Drupal::currentUser()->id());
+    if($user->hasPermission('materio_samples_edit_any_sample')){
+      // check perms to edit any
+      $disabled = false;
+    }else if($disabled){
+      // get user showroom if any
+      $showrooms = $user->get('field_showroom')->referencedEntities();
+      // enable/disable field reagarding showroom
+      foreach($showrooms as $showroom){
+        if($term->id() == $showroom->id()){
+          $disabled = false;
+          break;
+        }
+      }
+    }
+
     $element['target_id'] = [
       '#type' => 'hidden',
       '#default_value' => $target_id,
@@ -109,6 +128,7 @@ class SamplesDefaultWidget extends WidgetBase {
       '#size' => 10,
       '#maxlength' => 15,
       '#attributes' => ['class' => ['container-inline']],
+      '#disabled' => $disabled,
     ];
     // return ['value' => $element];
     return $element;