46 lines
1.2 KiB
JavaScript
46 lines
1.2 KiB
JavaScript
import React from 'react';
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import { colord } from 'colord';
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import classNames from 'classnames';
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import Dot from 'components/common/Dot';
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import useLocale from 'hooks/useLocale';
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import useForceUpdate from 'hooks/useForceUpdate';
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import styles from './Legend.module.css';
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export default function Legend({ chart }) {
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const { locale } = useLocale();
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const forceUpdate = useForceUpdate();
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function handleClick(index) {
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const meta = chart.getDatasetMeta(index);
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meta.hidden = meta.hidden === null ? !chart.data.datasets[index].hidden : null;
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chart.update();
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forceUpdate();
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}
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if (!chart?.legend?.legendItems.find(({ text }) => text)) {
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return null;
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}
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return (
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<div className={styles.legend}>
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{chart.legend.legendItems.map(({ text, fillStyle, datasetIndex, hidden }) => {
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const color = colord(fillStyle);
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return (
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<div
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key={text}
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className={classNames(styles.label, { [styles.hidden]: hidden })}
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onClick={() => handleClick(datasetIndex)}
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>
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<Dot color={color.alpha(color.alpha() + 0.2).toHex()} />
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<span className={locale}>{text}</span>
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</div>
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);
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})}
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</div>
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);
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}
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