UndoHistoryController does not function properly in languages like Japanese where characters are confirmed when typed. #134398
Description
Is there an existing issue for this?
- I have searched the existing issues
- I have read the guide to filing a bug
Steps to reproduce
- Input "あ"
- Confirm text
- Input "い"
- Confirm text
- Press undo
- Press undo again
Expected results
textformfield is empty
Actual results
"あ" remains in textformfield and "い" blinks when the undo button is pressed.
Code sample
Code sample
class SamplePage extends StatefulWidget {
SamplePage(): super();
@override
SamplePageState createState() => SamplePageState();
}
class SamplePageState extends State<SamplePage> with WidgetsBindingObserver {
final UndoHistoryController _undoController = UndoHistoryController();
@override
void initState() {
super.initState();
}
@override
Widget build(BuildContext context) {
return Scaffold(
body: Column(
children: [
const SizedBox(height: 150,),
TextFormField(
maxLines:null,
undoController: _undoController,
),
ElevatedButton(
onPressed: (){
_undoController.undo();
setState(() { });
},
child: const Text("undo")
)
]
),
);
}
}
Screenshots or Video
Screenshots / Video demonstration
Logs
Logs
It's too long to post, so if you need it, please leave a comment.Flutter Doctor output
Doctor output
[√] Flutter (Channel master, 3.14.0-14.0.pre.210, on Microsoft Windows [Version 10.0.22621.2215], locale ja-JP)
• Flutter version 3.14.0-14.0.pre.210 on channel master at C:\Users\81708\Desktop\develop\flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision 0d9ea62756 (7 hours ago), 2023-09-10 18:34:24 -0400
• Engine revision 04d836f695
• Dart version 3.2.0 (build 3.2.0-134.0.dev)
• DevTools version 2.27.0
[√] Windows Version (Installed version of Windows is version 10 or higher)
[√] Android toolchain - develop for Android devices (Android SDK version 31.0.0)
• Android SDK at C:\Users\81708\AppData\Local\Android\sdk
• Platform android-33, build-tools 31.0.0
• Java binary at: C:\Program Files\Android\Android Studio1\jre\bin\java
• Java version OpenJDK Runtime Environment (build 11.0.13+0-b1751.21-8125866)
• All Android licenses accepted.
[√] Chrome - develop for the web
• Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe
[X] Visual Studio - develop Windows apps
X Visual Studio not installed; this is necessary to develop Windows apps.
Download at https://visualstudio.microsoft.com/downloads/.
Please install the "Desktop development with C++" workload, including all of its default components
[√] Android Studio (version 2021.3)
• Android Studio at C:\Program Files\Android\Android Studio1
• Flutter plugin can be installed from:
https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
https://plugins.jetbrains.com/plugin/6351-dart
• Java version OpenJDK Runtime Environment (build 11.0.13+0-b1751.21-8125866)
[√] VS Code (version 1.82.0)
• VS Code at C:\Users\81708\AppData\Local\Programs\Microsoft VS Code
• Flutter extension version 3.72.0
[√] Connected device (4 available)
• sdk gphone x86 (mobile) • emulator-5554 • android-x86 • Android 11 (API 30) (emulator)
• Windows (desktop) • windows • windows-x64 • Microsoft Windows [Version 10.0.22621.2215]
• Chrome (web) • chrome • web-javascript • Google Chrome 116.0.5845.180
• Edge (web) • edge • web-javascript • Microsoft Edge 116.0.1938.76
[√] Network resources
• All expected network resources are available.
! Doctor found issues in 1 category.