Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 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 | import React, { ReactNode, useEffect, useRef, useState } from 'react';
import { Link, Typography, useTheme } from '@mui/material';
import { TruncateConfig } from './Textfield';
import './styles.scss';
interface TruncatedTextAreaProps {
truncateConfig: TruncateConfig;
children: ReactNode;
}
const TruncatedTextArea = ({ truncateConfig, children }: TruncatedTextAreaProps) => {
const { maxHeight, showLessText, showMoreText, showTextStyle, alignment = 'left' } = truncateConfig;
const theme = useTheme();
const [showAll, setShowAll] = useState(false);
const [needsTruncating, setNeedsTruncating] = useState(false);
const [totalHeight, setTotalHeight] = useState(0);
const ref = useRef<HTMLParagraphElement>(null);
useEffect(() => {
if (ref && ref.current && !totalHeight) {
const height = ref.current.clientHeight;
setTotalHeight(height);
setNeedsTruncating(height > maxHeight);
}
}, [maxHeight, ref, totalHeight]);
const toggleShowAll = () => setShowAll((prev) => !prev);
const divStyle: Record<string, any> = {
margin: 0,
padding: 0,
overflow: 'hidden',
width: '100%',
};
if (needsTruncating && !showAll) {
divStyle.maxHeight = `${maxHeight}px`;
}
return (
<>
<div ref={ref} style={divStyle}>
{children}
</div>
{needsTruncating && (
<div style={{ width: '100%', textAlign: alignment }}>
<Link
component='button'
onClick={toggleShowAll}
onBlur={() => setShowAll(false)}
sx={{ color: theme.palette.TwClrTxtBrand, textDecorationColor: `${theme.palette.TwClrTxtBrand}80` }}
>
<Typography sx={{ ...showTextStyle, marginTop: '-3px' }}>
{showAll ? showLessText : showMoreText}
</Typography>
</Link>
</div>
)}
</>
);
};
export default TruncatedTextArea;
|