src/views-components/login-form/login-form.tsx

   1 // Copyright (C) The Arvados Authors. All rights reserved.
   2 //
   3 // SPDX-License-Identifier: AGPL-3.0
   4
   5 import * as React from 'react';
   6 import { useState, useEffect } from 'react';
   7 import { withStyles, WithStyles, StyleRulesCallback } from '@material-ui/core/styles';
   8 import CircularProgress from '@material-ui/core/CircularProgress';
   9 import { Button, Card, CardContent, TextField, CardActions } from '@material-ui/core';
  10 import { green } from '@material-ui/core/colors';
  11 import { AxiosPromise } from 'axios';
  12
  13 type CssRules = 'root' | 'loginBtn' | 'card' | 'wrapper' | 'progress';
  14
  15 const styles: StyleRulesCallback<CssRules> = theme => ({
  16     root: {
  17         display: 'flex',
  18         flexWrap: 'wrap',
  19         width: '100%',
  20         margin: `${theme.spacing.unit} auto`
  21     },
  22     loginBtn: {
  23         marginTop: theme.spacing.unit,
  24         flexGrow: 1
  25     },
  26     card: {
  27         marginTop: theme.spacing.unit,
  28         width: '100%'
  29     },
  30     wrapper: {
  31         margin: theme.spacing.unit,
  32         position: 'relative',
  33     },
  34     progress: {
  35         color: green[500],
  36         position: 'absolute',
  37         top: '50%',
  38         left: '50%',
  39         marginTop: -12,
  40         marginLeft: -12,
  41     },
  42 });
  43
  44 interface LoginFormProps {
  45     handleSubmit: (username: string, password: string) => AxiosPromise;
  46 }
  47
  48 export const LoginForm = withStyles(styles)(
  49     ({ handleSubmit, classes }: LoginFormProps & WithStyles<CssRules>) => {
  50         const [username, setUsername] = useState('');
  51         const [password, setPassword] = useState('');
  52         const [isButtonDisabled, setIsButtonDisabled] = useState(true);
  53         const [isSubmitting, setSubmitting] = useState(false);
  54         const [helperText, setHelperText] = useState('');
  55         const [error, setError] = useState(false);
  56
  57         useEffect(() => {
  58             setError(false);
  59             setHelperText('');
  60             if (username.trim() && password.trim()) {
  61                 setIsButtonDisabled(false);
  62             } else {
  63                 setIsButtonDisabled(true);
  64             }
  65         }, [username, password]);
  66
  67         const handleLogin = () => {
  68             setSubmitting(true);
  69             handleSubmit(username, password)
  70             .then((response) => {
  71                 setError(false);
  72                 console.log("LOGIN SUCESSFUL: ", response);
  73                 setSubmitting(false);
  74             })
  75             .catch((err) => {
  76                 setError(true);
  77                 console.log("ERROR: ", err.response);
  78                 setHelperText(`${err.response && err.response.data && err.response.data.errors[0] || 'Error logging in: '+err}`);
  79                 setSubmitting(false);
  80             });
  81         };
  82
  83         const handleKeyPress = (e: any) => {
  84             if (e.keyCode === 13 || e.which === 13) {
  85                 if (!isButtonDisabled) {
  86                     handleLogin();
  87                 }
  88             }
  89         };
  90
  91         return (
  92             <React.Fragment>
  93                 <form className={classes.root} noValidate autoComplete="off">
  94                     <Card className={classes.card}>
  95                     <div className={classes.wrapper}>
  96                         <CardContent>
  97                             <div>
  98                                 <TextField
  99                                     disabled={isSubmitting}
 100                                     error={error} fullWidth id="username" type="email"
 101                                     label="Username" margin="normal"
 102                                     onChange={(e) => setUsername(e.target.value)}
 103                                     onKeyPress={(e) => handleKeyPress(e)}
 104                                 />
 105                                 <TextField
 106                                     disabled={isSubmitting}
 107                                     error={error} fullWidth id="password" type="password"
 108                                     label="Password" margin="normal"
 109                                     helperText={helperText}
 110                                     onChange={(e) => setPassword(e.target.value)}
 111                                     onKeyPress={(e) => handleKeyPress(e)}
 112                                 />
 113                             </div>
 114                         </CardContent>
 115                         <CardActions>
 116                             <Button variant="contained" size="large" color="primary"
 117                                 className={classes.loginBtn} onClick={() => handleLogin()}
 118                                 disabled={isSubmitting || isButtonDisabled}>
 119                                 Log in
 120                             </Button>
 121                         </CardActions>
 122                         { isSubmitting && <CircularProgress color='secondary' className={classes.progress} />}
 123                     </div>
 124                     </Card>
 125                 </form>
 126             </React.Fragment>
 127         );
 128     });