Repository: flutter
Issue: The Ctrl+Left Arrow key event doesn't occur on MacOS
Labels: platform-mac,a: desktop,has reproducible steps,P2,found in release: 2.5,found in release: 2.6,team-macos,triaged-macos

<!-- Thank you for using Flutter!

     If you are looking for support, please check out our documentation
     or consider asking a question on Stack Overflow:
      * https://flutter.dev/
      * https://api.flutter.dev/
      * https://stackoverflow.com/questions/tagged/flutter?sort=frequent

     If you have found a bug or if our documentation doesn't have an answer
     to what you're looking for, then fill out the template below. Please read
     our guide to filing a bug first: https://flutter.dev/docs/resources/bug-reports
-->

## Steps to Reproduce

<!-- You must include full steps to reproduce so that we can reproduce the problem. -->

1. Run `flutter create bug`.
2. Update the files as follows: ... 
```
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(primarySwatch: Colors.blue),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  TextEditingController con = TextEditingController();
  FocusNode focusNode = FocusNode();

  void _onKeyEvent(RawKeyEvent evt) async {
    final key = evt.logicalKey;

    final alt = evt.isAltPressed;
    final ctrl = evt.isControlPressed;
    final shift = evt.isShiftPressed;
    final meta = evt.isMetaPressed;
    final isDown = evt is RawKeyDownEvent;
    print('handleKey - ${key.debugName}/d:${isDown} - a:$alt,c:$ctrl,s:$shift,m:$meta');
  }

  @override
  Widget build(BuildContext context) {
    Widget body = TextField(
      controller: con,
      autofocus: true,
    );

    body = RawKeyboardListener(
      focusNode: focusNode,
      onKey: _onKeyEvent,
      child: body,
    );

    return Scaffold(
      appBar: AppBar(title: Text(widget.title)),
      body: Center(child: body),
    );
  }
}
```

3. How to reproduce...

(1) Run the program on MacOS.
(2) Connect a general windows keyboard onto the Mac.
(3) Holding the Ctrl key and press the left key.


**Expected results:**
I want to receive the Ctrl+Arrow left key event as follows,

handleKey - Control Left/d:true - a:false,c:true,s:false,m:false
handleKey - Arrow Left/d:true - a:false,c:true,s:false,m:false


**Actual results:** 
handleKey - Control Left/d:true - a:false,c:true,s:false,m:false
**handleKey - Control Left/d:false - a:false,c:false,s:false,m:false
handleKey - Alt Left/d:true - a:true,c:false,s:false,m:false**
handleKey - Arrow Left/d:true - **a:true,c:false**,s:false,m:false

I got the Alt+Left event instead of a Ctrl+Left key.
~~I don't know why I received the log of released Ctrl key and Pressed Alt key event.
Of course, this code works well on Windows platform.~~


Bernaferrari said this was an intended operation(#83733).

However, **we should be able to receive Ctrl key combination events for shortcut keys.**
For example, when the user presses Alt+Left, the list item must be changed to blue and Ctrl+Left must be changed to red.

<details>
  <summary>Logs</summary>


```
% flutter doctor -v
The operation couldn’t be completed. Unable to locate a Java Runtime.
Please visit http://www.java.com for information on installing Java.
[✓] Flutter (Channel beta, 2.5.0, on macOS 11.5.2 20G95 darwin-arm, locale ko)
    • Flutter version 2.5.0 at /Users/cjng96/flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 4cc385b4b8 (4 days ago), 2021-09-07 23:01:49 -0700
    • Engine revision f0826da7ef
    • Dart version 2.14.0

[✗] Android toolchain - develop for Android devices
    • Android SDK at /Users/cjng96/android-sdk
    ✗ cmdline-tools component is missing
      Run `path/to/sdkmanager --install "cmdline-tools;latest"`
      See https://developer.android.com/studio/command-line for more details.

[✓] Xcode - develop for iOS and macOS
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 12.3, Build version 12C33
    • CocoaPods version 1.10.0

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[!] Android Studio (not installed)
    • Android Studio not found; download from https://developer.android.com/studio/index.html
      (or visit https://flutter.dev/docs/get-started/install/macos#android-setup for detailed instructions).

[✓] IntelliJ IDEA Community Edition (version 2020.3)
    • IntelliJ at /Applications/IntelliJ IDEA CE.app
    • 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

[✓] VS Code (version 1.60.0)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.26.0

[✓] Connected device (2 available)
    • macOS (desktop) • macos  • darwin-arm64   • macOS 11.5.2 20G95 darwin-arm
    • Chrome (web)    • chrome • web-javascript • Google Chrome 93.0.4577.63

! Doctor found issues in 2 categories.
```

</details>