shlink-web-client/src/common/SimplePaginator.js

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import React from 'react';
import PropTypes from 'prop-types';
import { Pagination, PaginationItem, PaginationLink } from 'reactstrap';
import { range, max, min } from 'ramda';
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import './SimplePaginator.scss';
const propTypes = {
pagesCount: PropTypes.number.isRequired,
currentPage: PropTypes.number.isRequired,
setCurrentPage: PropTypes.func.isRequired,
};
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export const ellipsis = '...';
const pagination = (currentPage, pageCount) => {
const delta = 2;
const pages = range(
max(delta, currentPage - delta),
min(pageCount - 1, currentPage + delta) + 1
);
if (currentPage - delta > delta) {
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pages.unshift(ellipsis);
}
if (currentPage + delta < pageCount - 1) {
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pages.push(ellipsis);
}
pages.unshift(1);
pages.push(pageCount);
return pages;
};
const SimplePaginator = ({ pagesCount, currentPage, setCurrentPage }) => {
if (pagesCount < 2) {
return null;
}
const onClick = (page) => () => setCurrentPage(page);
return (
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<Pagination listClassName="flex-wrap justify-content-center mb-0 simple-paginator">
<PaginationItem disabled={currentPage <= 1}>
<PaginationLink previous tag="span" onClick={onClick(currentPage - 1)} />
</PaginationItem>
{pagination(currentPage, pagesCount).map((page, index) => (
<PaginationItem
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key={page !== ellipsis ? page : `${page}_${index}`}
active={page === currentPage}
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disabled={page === ellipsis}
>
<PaginationLink tag="span" onClick={onClick(page)}>{page}</PaginationLink>
</PaginationItem>
))}
<PaginationItem disabled={currentPage >= pagesCount}>
<PaginationLink next tag="span" onClick={onClick(currentPage + 1)} />
</PaginationItem>
</Pagination>
);
};
SimplePaginator.propTypes = propTypes;
export default SimplePaginator;