Update constructor of EditorTextSelectionOverlay

lib/src/widgets/raw_editor.dart

@@ -4,7 +4,6 @@ import 'dart:math' as math;
 
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/foundation.dart';
-import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/scheduler.dart';
@@ -588,19 +587,16 @@ class RawEditorState extends EditorState
       _selectionOverlay = null;
 
       _selectionOverlay = EditorTextSelectionOverlay(
-        textEditingValue,
-        false,
-        context,
-        widget,
-        _toolbarLayerLink,
-        _startHandleLayerLink,
-        _endHandleLayerLink,
-        getRenderEditor(),
-        widget.selectionCtrls,
-        this,
-        DragStartBehavior.start,
-        null,
-        _clipboardStatus,
+        value: textEditingValue,
+        context: context,
+        debugRequiredFor: widget,
+        toolbarLayerLink: _toolbarLayerLink,
+        startHandleLayerLink: _startHandleLayerLink,
+        endHandleLayerLink: _endHandleLayerLink,
+        renderObject: getRenderEditor(),
+        selectionCtrls: widget.selectionCtrls,
+        selectionDelegate: this,
+        clipboardStatus: _clipboardStatus,
       );
       _selectionOverlay!.handlesVisible = _shouldShowSelectionHandles();
       _selectionOverlay!.showHandles();

lib/src/widgets/text_selection.dart

@@ -66,21 +66,21 @@ class EditorTextSelectionOverlay {
   /// Creates an object that manages overlay entries for selection handles.
   ///
   /// The [context] must not be null and must have an [Overlay] as an ancestor.
-  EditorTextSelectionOverlay(
-    this.value,
-    this.handlesVisible,
-    this.context,
-    this.debugRequiredFor,
-    this.toolbarLayerLink,
-    this.startHandleLayerLink,
-    this.endHandleLayerLink,
-    this.renderObject,
-    this.selectionCtrls,
-    this.selectionDelegate,
-    this.dragStartBehavior,
+  EditorTextSelectionOverlay({
+    required this.value,
+    required this.context,
+    required this.toolbarLayerLink,
+    required this.startHandleLayerLink,
+    required this.endHandleLayerLink,
+    required this.renderObject,
+    required this.debugRequiredFor,
+    required this.selectionCtrls,
+    required this.selectionDelegate,
+    required this.clipboardStatus,
     this.onSelectionHandleTapped,
-    this.clipboardStatus,
-  ) {
+    this.dragStartBehavior = DragStartBehavior.start,
+    this.handlesVisible = false,
+  }) {
     final overlay = Overlay.of(context, rootOverlay: true)!;
 
     _toolbarController = AnimationController(