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app/lib/pages/login_page.dart

137 lines
5.5 KiB
Dart

import 'package:flutter/material.dart';
import 'package:vikunja_app/global.dart';
import 'package:vikunja_app/pages/register_page.dart';
import 'package:vikunja_app/theme/button.dart';
import 'package:vikunja_app/theme/buttonText.dart';
import 'package:vikunja_app/theme/constants.dart';
import 'package:vikunja_app/utils/validator.dart';
class LoginPage extends StatefulWidget {
@override
_LoginPageState createState() => _LoginPageState();
}
class _LoginPageState extends State<LoginPage> {
final _formKey = GlobalKey<FormState>();
String _server, _username, _password;
bool _loading = false;
@override
Widget build(BuildContext ctx) {
return Scaffold(
body: Center(
child: SingleChildScrollView(
padding: const EdgeInsets.all(16.0),
child: Builder(
builder: (BuildContext context) => Form(
autovalidate: true,
key: _formKey,
child: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
Padding(
padding: EdgeInsets.symmetric(vertical: 30),
child: Image(
image: AssetImage('assets/vikunja_logo_full.png'),
height: 85.0,
semanticLabel: 'Vikunja Logo',
),
),
Padding(
padding: vStandardVerticalPadding,
child: TextFormField(
enabled: !_loading,
onSaved: (serverAddress) => _server = serverAddress,
validator: (address) {
return isUrl(address) ? null : 'Invalid URL';
},
decoration: new InputDecoration(
border: OutlineInputBorder(),
labelText: 'Server Address'),
),
),
Padding(
padding: vStandardVerticalPadding,
child: TextFormField(
enabled: !_loading,
onSaved: (username) => _username = username,
decoration: new InputDecoration(
border: OutlineInputBorder(),
labelText: 'Username'),
),
),
Padding(
padding: vStandardVerticalPadding,
child: TextFormField(
enabled: !_loading,
onSaved: (password) => _password = password,
decoration: new InputDecoration(
border: OutlineInputBorder(),
labelText: 'Password'),
obscureText: true,
),
),
Builder(
builder: (context) => FancyButton(
onPressed: !_loading
? () {
if (_formKey.currentState
.validate()) {
Form.of(context).save();
_loginUser(context);
}
}
: null,
child: _loading
? CircularProgressIndicator()
: VikunjaButtonText('Login'),
)),
Builder(
builder: (context) => FancyButton(
onPressed: () => Navigator.push(
context,
MaterialPageRoute(
builder: (context) =>
RegisterPage())),
child: VikunjaButtonText('Register'),
)),
],
),
),
),
),
),
),
);
}
_loginUser(BuildContext context) async {
setState(() => _loading = true);
try {
var vGlobal = VikunjaGlobal.of(context);
var newUser =
await vGlobal.newUserService(_server).login(_username, _password);
vGlobal.changeUser(newUser.user, token: newUser.token, base: _server);
} catch (ex) {
showDialog(
context: context,
builder: (context) => new AlertDialog(
title: Text(
'Login failed! Please check your server url and credentials. ' +
ex.toString()),
actions: <Widget>[
FlatButton(
onPressed: () => Navigator.pop(context),
child: const Text('Close'))
],
));
} finally {
setState(() {
_loading = false;
});
}
}
}