fluffychat/lib/views/sign_up.dart

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Dart
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import 'dart:math';
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import 'package:adaptive_page_layout/adaptive_page_layout.dart';
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import 'package:famedlysdk/famedlysdk.dart';
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import 'package:file_picker_cross/file_picker_cross.dart';
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import 'package:fluffychat/components/matrix.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_gen/gen_l10n/l10n.dart';
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import '../app_config.dart';
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class SignUp extends StatefulWidget {
@override
_SignUpState createState() => _SignUpState();
}
class _SignUpState extends State<SignUp> {
final TextEditingController usernameController = TextEditingController();
String usernameError;
bool loading = false;
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MatrixFile avatar;
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void setAvatarAction() async {
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var file =
await FilePickerCross.importFromStorage(type: FileTypeCross.image);
if (file != null) {
setState(
() => avatar = MatrixFile(
bytes: file.toUint8List(),
name: file.fileName,
),
);
}
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}
void signUpAction(BuildContext context) async {
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var matrix = Matrix.of(context);
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if (usernameController.text.isEmpty) {
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setState(() => usernameError = L10n.of(context).pleaseChooseAUsername);
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} else {
setState(() => usernameError = null);
}
if (usernameController.text.isEmpty) {
return;
}
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setState(() => loading = true);
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final preferredUsername =
usernameController.text.toLowerCase().replaceAll(' ', '-');
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try {
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await matrix.client.usernameAvailable(preferredUsername);
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} on MatrixException catch (exception) {
setState(() => usernameError = exception.errorMessage);
return setState(() => loading = false);
} catch (exception) {
setState(() => usernameError = exception.toString());
return setState(() => loading = false);
}
setState(() => loading = false);
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await AdaptivePageLayout.of(context).pushNamed(
'/signup/password/${Uri.encodeComponent(preferredUsername)}/${Uri.encodeComponent(usernameController.text)}',
arguments: avatar,
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);
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
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elevation: 0,
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leading: loading ? Container() : BackButton(),
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title: Text(
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Matrix.of(context)
.client
.homeserver
.toString()
.replaceFirst('https://', ''),
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),
),
body: ListView(
padding: EdgeInsets.symmetric(
horizontal:
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max((MediaQuery.of(context).size.width - 600) / 2, 0)),
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children: <Widget>[
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Hero(
tag: 'loginBanner',
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child: Image.asset('assets/banner.png'),
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),
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SizedBox(height: 16),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 12.0),
child: TextField(
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readOnly: loading,
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autocorrect: false,
controller: usernameController,
onSubmitted: (s) => signUpAction(context),
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autofillHints: loading ? null : [AutofillHints.newUsername],
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decoration: InputDecoration(
prefixIcon: Icon(Icons.account_circle_outlined),
hintText: L10n.of(context).username,
errorText: usernameError,
labelText: L10n.of(context).chooseAUsername,
),
),
),
SizedBox(height: 8),
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ListTile(
leading: CircleAvatar(
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backgroundImage:
avatar == null ? null : MemoryImage(avatar.bytes),
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backgroundColor: avatar == null
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? Theme.of(context).brightness == Brightness.dark
? Color(0xff121212)
: Colors.white
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: Theme.of(context).secondaryHeaderColor,
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child: avatar == null
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? Icon(Icons.camera_alt_outlined,
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color: Theme.of(context).primaryColor)
: null,
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),
trailing: avatar == null
? null
: Icon(
Icons.close,
color: Colors.red,
),
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title: Text(avatar == null
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? L10n.of(context).setAProfilePicture
: L10n.of(context).discardPicture),
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onTap: avatar == null
? setAvatarAction
: () => setState(() => avatar = null),
),
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SizedBox(height: 16),
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Hero(
tag: 'loginButton',
child: Container(
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height: 56,
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padding: EdgeInsets.symmetric(horizontal: 12),
child: RaisedButton(
elevation: 7,
color: Theme.of(context).primaryColor,
shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(AppConfig.borderRadius),
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),
child: loading
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? LinearProgressIndicator()
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: Text(
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L10n.of(context).signUp.toUpperCase(),
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style: TextStyle(color: Colors.white, fontSize: 16),
),
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onPressed: loading ? null : () => signUpAction(context),
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),
),
),
Center(
child: FlatButton(
child: Text(
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L10n.of(context).alreadyHaveAnAccount,
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style: TextStyle(
decoration: TextDecoration.underline,
color: Colors.blue,
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fontSize: 16,
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),
),
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onPressed: () =>
AdaptivePageLayout.of(context).pushNamed('/login'),
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),
),
]),
);
}
}