Issue #3486050 by grimreaper, pdureau: Fix Layout Builder drag & drop and...

Issue #3486050 by grimreaper, pdureau: Fix Layout Builder drag & drop and remove temporarily UI Styles support

modules/ui_patterns_layouts/src/Element/ComponentAlterer.php

@@ -4,7 +4,6 @@ namespace Drupal\ui_patterns_layouts\Element;
 
 use Drupal\Core\Render\Element;
 use Drupal\Core\Security\TrustedCallbackInterface;
-use Drupal\Core\Template\Attribute;
 
 /**
  * Alter the rendering of a component element.
@@ -39,9 +38,8 @@ class ComponentAlterer implements TrustedCallbackInterface {
       foreach (Element::children($element[$region_id]) as $block_id) {
         $element["#slots"][$region_id][$block_id] = $element[$region_id][$block_id];
       }
-      if (isset($element[$region_id]['#attributes']) && isset($element['#slots'][$region_id])) {
-        $element['#region_attributes'][$region_id] = new Attribute($element[$region_id]['#attributes']);
-        // Support for drag&drop and other attributes manipulation.
+      // Support for drag&drop and other attributes manipulation in preview.
+      if ($element['#layout']->isInPreview() && isset($element[$region_id]['#attributes']) && isset($element['#slots'][$region_id])) {
         $element['#slots'][$region_id] = [
           '#type' => 'html_tag',
           '#tag' => 'div',

modules/ui_patterns_layouts/src/Plugin/Layout/ComponentLayout.php

@@ -171,4 +171,16 @@ class ComponentLayout extends LayoutDefault implements ContainerFactoryPluginInt
     return $dependencies;
   }
 
+  /**
+   * Getter for the inPreview attribute.
+   *
+   * As there is currently no getter in the base class.
+   *
+   * @return bool
+   *   If the layout is in preview.
+   */
+  public function isInPreview(): bool {
+    return $this->inPreview;
+  }
+
 }