1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
|
import React, { useState, useEffect } from 'react';
import { useFilePicker, utils } from 'react-sage';
import { makeStyles } from '@material-ui/core/styles';
import CloudUploadIcon from '@material-ui/icons/CloudUpload';
import { CardActionArea, CardMedia, Typography } from '@material-ui/core';
import CancelOutlinedIcon from '@material-ui/icons/CancelOutlined';
interface PropTypes {
file: File | undefined;
setFile: (file: File | undefined) => void;
}
const useStyles = makeStyles({
root: {
display: 'flex',
justifyContent: 'center',
flexDirection: 'column',
alignItems: 'center'
},
clearIcon: {
opacity: '.5',
fontSize: 50
},
media: {
height: '100%',
width: '100%',
display: 'flex',
justifyContent: 'center',
alignItems: 'center'
},
text: {
textAlign: 'center'
}
});
const PollCreationImage: React.FC<PropTypes> = ({ file, setFile }) => {
const classes = useStyles();
const { files, onClick, HiddenFileInput } = useFilePicker();
const [url, setUrl] = useState<string>();
const [isMediaHover, setIsMediaHover] = useState(false);
const handleMouseEnter = (): void => {
setIsMediaHover(true);
};
const handleMouseLeave = (): void => {
setIsMediaHover(false);
};
useEffect(() => {
if (files?.length) {
const chosenFile = files[0];
setFile(chosenFile);
utils.loadFile(chosenFile).then(result => setUrl(result));
}
}, [files, setFile]);
const handleClick = () => {
if (file) {
setFile(undefined);
} else onClick();
};
const Upload = (
<>
<CloudUploadIcon fontSize="large" color="primary" />
<Typography variant="h5" className={classes.text}> Upload an image </Typography>
<HiddenFileInput accept=".jpg, .jpeg, .png, .gif" multiple={false} />
</>
);
const Media = (
<CardMedia
image={url}
className={classes.media}
onMouseEnter={handleMouseEnter}
onMouseLeave={handleMouseLeave}
>
{isMediaHover && <CancelOutlinedIcon className={classes.clearIcon} />}
</CardMedia>
);
return (
<>
<CardActionArea onClick={handleClick} className={classes.root}>
{file ? (url && Media) : Upload}
</CardActionArea>
</>
);
};
export default PollCreationImage;
|
