setState to trigger build and updateChildren

lib/widgets/raw_editor.dart

@@ -22,8 +22,8 @@ import 'box.dart';
 import 'controller.dart';
 import 'cursor.dart';
 import 'delegate.dart';
-import 'keyboard_listener.dart';
 import 'editor.dart';
+import 'keyboard_listener.dart';
 
 class RawEditor extends StatefulWidget {
   final QuillController controller;
@@ -848,6 +848,10 @@ class RawEditorState extends EditorState
 
     SchedulerBinding.instance.addPostFrameCallback(
         (Duration _) => _updateOrDisposeSelectionOverlayIfNeeded());
+    setState(() {
+      // Use widget.controller.value in build()
+      // Trigger build and updateChildren
+    });
   }
 
   _updateOrDisposeSelectionOverlayIfNeeded() {
@@ -897,7 +901,12 @@ class RawEditorState extends EditorState
     updateKeepAlive();
   }
 
-  _onChangedClipboardStatus() {}
+  _onChangedClipboardStatus() {
+    setState(() {
+      // Inform the widget that the value of clipboardStatus has changed.
+      // Trigger build and updateChildren
+    });
+  }
 
   bool _showCaretOnScreenScheduled = false;