[TASK] Use JS module loader instead of requirejs when available

Author: NamelessCoder

Classes/Integration/HookSubscribers/EditDocumentController.php

@@ -16,6 +16,10 @@ public function requireColumnPositionJavaScript() : void
     {
         /** @var PageRenderer $pageRenderer */
         $pageRenderer = GeneralUtility::makeInstance(PageRenderer::class);
-        $pageRenderer->loadRequireJsModule('TYPO3/CMS/Flux/FluxColPosAssignment');
+        if (method_exists($pageRenderer, 'loadJavaScriptModule')) {
+            $pageRenderer->loadJavaScriptModule('@fluidtypo3/flux/FluxColPosAssignment.js');
+        } else {
+            $pageRenderer->loadRequireJsModule('TYPO3/CMS/Flux/FluxColPosAssignment');
+        }
     }
 }

Classes/Integration/PreviewRenderer.php

@@ -56,7 +56,11 @@ protected function attachAssets(): void
     {
         if (!static::$assetsIncluded) {
             $this->pageRenderer->addCssFile('EXT:flux/Resources/Public/css/flux.css');
-            $this->pageRenderer->loadRequireJsModule('TYPO3/CMS/Flux/FluxCollapse');
+            if (method_exists($this->pageRenderer, 'loadJavaScriptModule')) {
+                $this->pageRenderer->loadJavaScriptModule('@fluidtypo3/flux/FluxCollapse.js');
+            } else {
+                $this->pageRenderer->loadRequireJsModule('TYPO3/CMS/Flux/FluxCollapse');
+            }
 
             static::$assetsIncluded = true;
         }

Configuration/JavaScriptModules.php

@@ -0,0 +1,8 @@
+<?php
+
+return [
+    'dependencies' => ['core', 'backend'],
+    'imports' => [
+        '@fluidtypo3/flux' => 'EXT:flux/Resources/Public/JavaScript/',
+    ]
+];