fluffychat/lib/views/login.dart

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import 'dart:math';
import 'package:famedlysdk/famedlysdk.dart';
import 'package:fluffychat/components/matrix.dart';
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import 'package:fluffychat/i18n/i18n.dart';
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import 'package:fluffychat/utils/app_route.dart';
import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'chat_list.dart';
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class Login extends StatefulWidget {
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@override
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_LoginState createState() => _LoginState();
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}
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class _LoginState extends State<Login> {
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final TextEditingController usernameController = TextEditingController();
final TextEditingController passwordController = TextEditingController();
final TextEditingController serverController =
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TextEditingController(text: "matrix-client.matrix.org");
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String usernameError;
String passwordError;
String serverError;
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bool loading = false;
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bool showPassword = false;
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void login(BuildContext context) async {
MatrixState matrix = Matrix.of(context);
if (usernameController.text.isEmpty) {
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setState(() => usernameError = I18n.of(context).pleaseEnterYourUsername);
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} else {
setState(() => usernameError = null);
}
if (passwordController.text.isEmpty) {
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setState(() => passwordError = I18n.of(context).pleaseEnterYourPassword);
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} else {
setState(() => passwordError = null);
}
serverError = null;
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if (usernameController.text.isEmpty || passwordController.text.isEmpty) {
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return;
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}
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String homeserver = serverController.text;
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if (homeserver.isEmpty) homeserver = "matrix-client.matrix.org";
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if (!homeserver.startsWith("https://")) {
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homeserver = "https://" + homeserver;
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}
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try {
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setState(() => loading = true);
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if (!await matrix.client.checkServer(homeserver)) {
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setState(
() => serverError = I18n.of(context).homeserverIsNotCompatible);
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return setState(() => loading = false);
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}
} catch (exception) {
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setState(() => serverError = I18n.of(context).connectionAttemptFailed);
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return setState(() => loading = false);
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}
try {
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await matrix.client.login(
usernameController.text, passwordController.text,
initialDeviceDisplayName: matrix.widget.clientName);
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} on MatrixException catch (exception) {
setState(() => passwordError = exception.errorMessage);
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return setState(() => loading = false);
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} catch (exception) {
setState(() => passwordError = exception.toString());
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return setState(() => loading = false);
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}
if (!kIsWeb) {
try {
await matrix.setupFirebase();
} catch (exception) {
await matrix.client.logout();
matrix.clean();
setState(() => passwordError = exception.toString());
return setState(() => loading = false);
}
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}
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setState(() => loading = false);
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await Navigator.of(context).pushAndRemoveUntil(
AppRoute.defaultRoute(context, ChatListView()), (r) => false);
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}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: TextField(
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autocorrect: false,
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controller: serverController,
decoration: InputDecoration(
icon: Icon(Icons.domain),
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hintText: "matrix-client.matrix.org",
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errorText: serverError,
errorMaxLines: 1,
prefixText: "https://",
labelText: serverError == null ? "Homeserver" : serverError),
),
),
body: ListView(
padding: EdgeInsets.symmetric(
vertical: 16,
horizontal: max((MediaQuery.of(context).size.width - 600) / 2, 16)),
children: <Widget>[
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Container(
height: 150,
color: Theme.of(context).secondaryHeaderColor,
child: Center(
child: Icon(
Icons.vpn_key,
color: Theme.of(context).primaryColor,
size: 40,
),
),
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),
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ListTile(
leading: CircleAvatar(
backgroundColor: Colors.blue,
child: Icon(Icons.account_box),
),
title: TextField(
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autocorrect: false,
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controller: usernameController,
decoration: InputDecoration(
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hintText:
"@${I18n.of(context).username.toLowerCase()}:domain",
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errorText: usernameError,
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labelText: I18n.of(context).username),
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),
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),
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ListTile(
leading: CircleAvatar(
backgroundColor: Colors.yellow,
child: Icon(Icons.lock),
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),
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title: TextField(
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autocorrect: false,
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controller: passwordController,
obscureText: !showPassword,
onSubmitted: (t) => login(context),
decoration: InputDecoration(
hintText: "****",
errorText: passwordError,
suffixIcon: IconButton(
icon: Icon(
showPassword ? Icons.visibility_off : Icons.visibility),
onPressed: () =>
setState(() => showPassword = !showPassword),
),
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labelText: I18n.of(context).password),
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),
),
SizedBox(height: 20),
Container(
height: 50,
child: RaisedButton(
elevation: 7,
color: Theme.of(context).primaryColor,
shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(50),
),
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child: loading
? CircularProgressIndicator()
: Text(
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I18n.of(context).login,
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style: TextStyle(color: Colors.white, fontSize: 16),
),
onPressed: () => loading ? null : login(context),
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),
),
],
),
);
}
}