[Web] Unexpected null value thrown when focus on editor #192
Description
Hello,
Example:
import 'package:flutter/material.dart';
import 'package:flutter_quill/models/documents/document.dart';
import 'package:flutter_quill/widgets/controller.dart';
import 'package:flutter_quill/widgets/editor.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatefulWidget {
@override
_MyAppState createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
QuillController _controller;
final FocusNode _focusNode = FocusNode();
@override
void initState() {
final doc = Document()..insert(0, 'Empty asset');
_controller = QuillController(
document: doc, selection: TextSelection.collapsed(offset: 0));
super.initState();
}
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
body: _quill(),
)
);
}
Widget _quill() {
return Column(
children: <Widget>[
Container(
color: Colors.white,
padding: const EdgeInsets.only(left: 16.0, right: 16.0),
child: QuillEditor(
controller: _controller,
scrollController: ScrollController(),
scrollable: true,
focusNode: _focusNode,
autoFocus: false,
readOnly: false,
placeholder: 'Add content',
enableInteractiveSelection: true,
expands: false,
padding: EdgeInsets.zero,
),
),
],
);
}
}
Makes unexpected null value thrown:
══╡ EXCEPTION CAUGHT BY FOUNDATION LIBRARY ╞════════════════════════════════════════════════════════
The following TypeErrorImpl was thrown while dispatching notifications for FocusNode:
Unexpected null value.
When the exception was thrown, this was the stack:
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/errors.dart 236:49 throw_
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/operations.dart 518:63 nullCheck
packages/flutter_quill/widgets/raw_editor.dart 973:25 [_updateOrDisposeSelectionOverlayIfNeeded]
packages/flutter_quill/widgets/raw_editor.dart 984:5 [_handleFocusChanged]
packages/flutter/src/foundation/change_notifier.dart 243:16 notifyListeners
packages/flutter/src/widgets/focus_manager.dart 1052:5 [_notify]
packages/flutter/src/widgets/focus_manager.dart 1771:11 [_applyFocusChange]
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/schedule_microtask.dart 40:11 _microtaskLoop
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/schedule_microtask.dart 49:5 _startMicrotaskLoop
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 166:15 <fn>
The FocusNode sending notification was:
FocusNode#8a0dc([PRIMARY FOCUS])
════════════════════════════════════════════════════════════════════════════════════════════════════
Another exception was thrown: Unexpected null value.