fluffychat/lib/pages/key_verification_dialog.dart

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import 'dart:ui';
import 'dart:convert';
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import 'package:adaptive_dialog/adaptive_dialog.dart';
import 'package:matrix/encryption.dart';
import 'package:matrix/matrix.dart';
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import 'package:fluffychat/utils/platform_infos.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_gen/gen_l10n/l10n.dart';
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import '../widgets/adaptive_flat_button.dart';
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import 'package:future_loading_dialog/future_loading_dialog.dart';
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import '../utils/string_color.dart';
import '../utils/beautify_string_extension.dart';
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class KeyVerificationDialog extends StatefulWidget {
Future<void> show(BuildContext context) => PlatformInfos.isCupertinoStyle
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? showCupertinoDialog(
context: context,
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barrierDismissible: true,
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builder: (context) => this,
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useRootNavigator: false,
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)
: showDialog(
context: context,
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barrierDismissible: true,
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builder: (context) => this,
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useRootNavigator: false,
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);
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final KeyVerification request;
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KeyVerificationDialog({
this.request,
});
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@override
_KeyVerificationPageState createState() => _KeyVerificationPageState();
}
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class _KeyVerificationPageState extends State<KeyVerificationDialog> {
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void Function() originalOnUpdate;
List<dynamic> sasEmoji;
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@override
void initState() {
originalOnUpdate = widget.request.onUpdate;
widget.request.onUpdate = () {
if (originalOnUpdate != null) {
originalOnUpdate();
}
setState(() => null);
};
widget.request.client.getProfileFromUserId(widget.request.userId).then((p) {
profile = p;
setState(() => null);
});
rootBundle.loadString('assets/sas-emoji.json').then((e) {
sasEmoji = json.decode(e);
setState(() => null);
});
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super.initState();
}
@override
void dispose() {
widget.request.onUpdate =
originalOnUpdate; // don't want to get updates anymore
if (![KeyVerificationState.error, KeyVerificationState.done]
.contains(widget.request.state)) {
widget.request.cancel('m.user');
}
super.dispose();
}
Profile profile;
@override
Widget build(BuildContext context) {
Widget body;
final buttons = <Widget>[];
switch (widget.request.state) {
case KeyVerificationState.askSSSS:
// prompt the user for their ssss passphrase / key
final textEditingController = TextEditingController();
String input;
final checkInput = () async {
if (input == null || input.isEmpty) {
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return;
}
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final valid = await showFutureLoadingDialog(
context: context,
future: () async {
// make sure the loading spinner shows before we test the keys
await Future.delayed(Duration(milliseconds: 100));
var valid = false;
try {
await widget.request.openSSSS(keyOrPassphrase: input);
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valid = true;
} catch (_) {
valid = false;
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}
return valid;
});
if (valid.error != null) {
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await showOkAlertDialog(
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useRootNavigator: false,
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context: context,
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message: L10n.of(context).incorrectPassphraseOrKey,
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);
}
};
body = Container(
margin: EdgeInsets.only(left: 8.0, right: 8.0),
child: Column(
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mainAxisSize: MainAxisSize.min,
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children: <Widget>[
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Text(L10n.of(context).askSSSSSign,
style: TextStyle(fontSize: 20)),
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Container(height: 10),
TextField(
controller: textEditingController,
autofocus: false,
autocorrect: false,
onSubmitted: (s) {
input = s;
checkInput();
},
minLines: 1,
maxLines: 1,
obscureText: true,
decoration: InputDecoration(
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hintText: L10n.of(context).passphraseOrKey,
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prefixStyle: TextStyle(color: Theme.of(context).primaryColor),
suffixStyle: TextStyle(color: Theme.of(context).primaryColor),
border: OutlineInputBorder(),
),
),
],
),
);
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buttons.add(AdaptiveFlatButton(
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label: L10n.of(context).submit,
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onPressed: () {
input = textEditingController.text;
checkInput();
},
));
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buttons.add(AdaptiveFlatButton(
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label: L10n.of(context).skip,
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onPressed: () => widget.request.openSSSS(skip: true),
));
break;
case KeyVerificationState.askAccept:
body = Container(
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margin: EdgeInsets.only(left: 8.0, right: 8.0),
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child: Text(
L10n.of(context).askVerificationRequest(widget.request.userId),
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style: TextStyle(fontSize: 20)),
);
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buttons.add(AdaptiveFlatButton(
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label: L10n.of(context).accept,
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onPressed: () => widget.request.acceptVerification(),
));
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buttons.add(AdaptiveFlatButton(
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label: L10n.of(context).reject,
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onPressed: () {
widget.request.rejectVerification().then((_) {
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Navigator.of(context, rootNavigator: false).pop();
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});
},
));
break;
case KeyVerificationState.waitingAccept:
body = Column(
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mainAxisSize: MainAxisSize.min,
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children: <Widget>[
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PlatformInfos.isCupertinoStyle
? CupertinoActivityIndicator()
: CircularProgressIndicator(),
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SizedBox(height: 10),
Text(
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L10n.of(context).waitingPartnerAcceptRequest,
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textAlign: TextAlign.center,
),
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],
);
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final key = widget.request.client.userDeviceKeys[widget.request.userId]
.deviceKeys[widget.request.deviceId];
if (key != null) {
buttons.add(AdaptiveFlatButton(
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label: L10n.of(context).verifyManual,
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onPressed: () async {
final result = await showOkCancelAlertDialog(
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useRootNavigator: false,
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context: context,
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title: L10n.of(context).verifyManual,
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message: key.ed25519Key.beautified,
);
if (result == OkCancelResult.ok) {
await key.setVerified(true);
}
await widget.request.cancel();
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Navigator.of(context, rootNavigator: false).pop();
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},
));
}
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break;
case KeyVerificationState.askSas:
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TextSpan compareWidget;
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// maybe add a button to switch between the two and only determine default
// view for if "emoji" is a present sasType or not?
String compareText;
if (widget.request.sasTypes.contains('emoji')) {
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compareText = L10n.of(context).compareEmojiMatch;
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compareWidget = TextSpan(
children: widget.request.sasEmojis
.map((e) => WidgetSpan(child: _Emoji(e, sasEmoji)))
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.toList(),
);
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} else {
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compareText = L10n.of(context).compareNumbersMatch;
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final numbers = widget.request.sasNumbers;
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final numbstr = '${numbers[0]}-${numbers[1]}-${numbers[2]}';
compareWidget =
TextSpan(text: numbstr, style: TextStyle(fontSize: 40));
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}
body = Column(
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mainAxisSize: MainAxisSize.min,
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children: <Widget>[
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Center(
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child: Text(
compareText,
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style: TextStyle(fontSize: 16),
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textAlign: TextAlign.center,
),
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),
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SizedBox(height: 10),
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Text.rich(
compareWidget,
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textAlign: TextAlign.center,
),
],
);
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buttons.add(AdaptiveFlatButton(
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textColor: Colors.red,
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label: L10n.of(context).theyDontMatch,
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onPressed: () => widget.request.rejectSas(),
));
buttons.add(AdaptiveFlatButton(
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label: L10n.of(context).theyMatch,
onPressed: () => widget.request.acceptSas(),
));
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break;
case KeyVerificationState.waitingSas:
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final acceptText = widget.request.sasTypes.contains('emoji')
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? L10n.of(context).waitingPartnerEmoji
: L10n.of(context).waitingPartnerNumbers;
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body = Column(
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mainAxisSize: MainAxisSize.min,
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children: <Widget>[
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PlatformInfos.isCupertinoStyle
? CupertinoActivityIndicator()
: CircularProgressIndicator(),
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SizedBox(height: 10),
Text(
acceptText,
textAlign: TextAlign.center,
),
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],
);
break;
case KeyVerificationState.done:
body = Column(
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mainAxisSize: MainAxisSize.min,
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children: <Widget>[
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Icon(Icons.check_circle_outlined, color: Colors.green, size: 200.0),
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SizedBox(height: 10),
Text(
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L10n.of(context).verifySuccess,
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textAlign: TextAlign.center,
),
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],
);
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buttons.add(AdaptiveFlatButton(
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label: L10n.of(context).close,
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onPressed: () => Navigator.of(context, rootNavigator: false).pop(),
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));
break;
case KeyVerificationState.error:
body = Column(
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mainAxisSize: MainAxisSize.min,
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children: <Widget>[
Icon(Icons.cancel, color: Colors.red, size: 200.0),
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SizedBox(height: 10),
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Text(
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'Error ${widget.request.canceledCode}: ${widget.request.canceledReason}',
textAlign: TextAlign.center,
),
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],
);
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buttons.add(AdaptiveFlatButton(
label: L10n.of(context).close,
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onPressed: () => Navigator.of(context, rootNavigator: false).pop(),
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));
break;
}
body ??= Text('ERROR: Unknown state ' + widget.request.state.toString());
final otherName = profile?.displayName ?? widget.request.userId;
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var bottom;
if (widget.request.deviceId != null) {
final deviceName = widget
.request
.client
.userDeviceKeys[widget.request.userId]
?.deviceKeys[widget.request.deviceId]
?.deviceDisplayName ??
'';
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bottom = Container(
alignment: Alignment.center,
padding: EdgeInsets.all(16.0),
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child: Text('$deviceName (${widget.request.deviceId})',
style: TextStyle(color: Theme.of(context).textTheme.caption.color)),
);
}
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final userNameTitle = Row(
mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: <Widget>[
Text(
otherName,
maxLines: 1,
style: TextStyle(
color: otherName.color,
fontWeight: FontWeight.bold,
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),
),
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if (otherName != widget.request.userId)
Text(
' - ' + widget.request.userId,
maxLines: 1,
style: TextStyle(
fontStyle: FontStyle.italic,
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),
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),
],
);
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final title = Text(L10n.of(context).verifyTitle);
final content = SingleChildScrollView(
scrollDirection: Axis.vertical,
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
if (PlatformInfos.isCupertinoStyle) ...[
SizedBox(height: 8),
Center(child: userNameTitle),
SizedBox(height: 12),
],
body,
if (bottom != null) bottom,
],
),
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);
if (PlatformInfos.isCupertinoStyle) {
return CupertinoAlertDialog(
title: title,
content: content,
actions: buttons,
);
}
return AlertDialog(
title: title,
content: content,
actions: buttons,
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);
}
}
class _Emoji extends StatelessWidget {
final KeyVerificationEmoji emoji;
final List<dynamic> sasEmoji;
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_Emoji(this.emoji, this.sasEmoji);
String getLocalizedName() {
if (sasEmoji == null) {
// asset is still being loaded
return emoji.name;
}
final translations = Map<String, String>.from(
sasEmoji[emoji.number]['translated_descriptions']);
translations['en'] = emoji.name;
for (final locale in window.locales) {
final wantLocaleParts = locale.toString().split('_');
final wantLanguage = wantLocaleParts.removeAt(0);
for (final haveLocale in translations.keys) {
final haveLocaleParts = haveLocale.split('_');
final haveLanguage = haveLocaleParts.removeAt(0);
if (haveLanguage == wantLanguage &&
(Set.from(haveLocaleParts)..removeAll(wantLocaleParts)).isEmpty &&
(translations[haveLocale]?.isNotEmpty ?? false)) {
return translations[haveLocale];
}
}
}
return emoji.name;
}
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@override
Widget build(BuildContext context) {
return Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Text(emoji.emoji, style: TextStyle(fontSize: 50)),
Text(getLocalizedName()),
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Container(height: 10, width: 5),
],
);
}
}