new text editor block that contains core blocks as inner blocks and prevents them from being used at top level

web/app/themes/badegg/resources/js/app.js

@@ -3,16 +3,10 @@ import.meta.glob([
   '../fonts/**',
 ]);
 
-import domReady from '@wordpress/dom-ready';
 import blocks from './blocks.js';
 import Header from './sections/header.js';
 import LazyLoad from './lib/Lazy.js';
 
-/**
- * Application entrypoint
- */
-domReady(async () => {
-  LazyLoad();
-  blocks();
-  Header();
-});
+LazyLoad();
+blocks();
+Header();

web/app/themes/badegg/resources/js/blocks.js

@@ -1,6 +1,6 @@
-import BadExample from "./blocks/BadExample";
+// import BadExample from "./blocks/BadExample";
 
 export default function()
 {
-  BadExample();
+  // BadExample();
 }

web/app/themes/badegg/resources/js/blocks/BadExample.js

@@ -1,4 +0,0 @@
-export default function BadExample()
-{
-
-}

web/app/themes/badegg/resources/js/editor.js

@@ -1,5 +1,52 @@
 import domReady from '@wordpress/dom-ready';
 
 domReady(() => {
-  //
+
+  const restrictEditorParentBlocks = (settings, name) => {
+    const TEXT_EDITOR_BLOCKS = [
+      // Design
+      'core/separator',
+      'core/spacer',
+
+      // Media
+      'core/cover',
+      'core/file',
+      'core/gallery',
+      'core/image',
+      'core/media-text',
+      'core/audio',
+      'core/video',
+
+      // Text
+      'core/footnotes',
+      'core/heading',
+      'core/list',
+      'core/code',
+      'core/details',
+      'core/freeform',
+      'core/list-item',
+      'core/missing',
+      'core/paragraph',
+      'core/preformatted',
+      'core/pullquote',
+      'core/quote',
+      'core/table',
+      'core/verse',
+    ];
+
+    if (TEXT_EDITOR_BLOCKS.includes(name)) {
+      settings.parent = ['acf/badegg-editor']
+    }
+
+    // console.log(settings, name)
+
+    return settings
+  }
+
+  wp.hooks.addFilter(
+      'blocks.registerBlockType',
+      'your-project-name/restrict-parent-blocks',
+      restrictEditorParentBlocks
+  );
+
 });

web/app/themes/badegg/resources/js/lib/isInsideBlock.js

@@ -0,0 +1,12 @@
+export default function isInsideMyACFBlock(blockName)
+{
+  const editor = wp.data.select('core/block-editor');
+  const selectedId = editor.getSelectedBlockClientId();
+
+  if (!selectedId) return false;
+
+  const parents = editor.getBlockParents(selectedId);
+  const parentNames = parents.map(id => editor.getBlockName(id));
+
+  return parentNames.includes(blockName);
+}