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sortable-header.js
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sortable-header.js
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import React from 'react';
import PropTypes from 'prop-types';
import { css } from '@emotion/core';
import styled from '@emotion/styled';
import { customProperties as vars } from '@commercetools-uikit/design-system';
import { AngleDownIcon, AngleUpIcon } from '@commercetools-uikit/icons';
import Text from '@commercetools-uikit/text';
/*
Logic of arrow indicating sort order is slightly complex:
+----------+-------------+---------------+------------+----------------+
| isActive | isMouseOver | sortDirection | arrowColor | arrowDirection |
+----------+-------------+---------------+------------+----------------+
| 0 | 0 | n/a | *INVISIBLE* |
+----------+-------------+---------------+-----------------------------+
| 0 | 1 | n/a | grey | down |
+----------+-------------+---------------+------------+----------------+
| 1 | 0 | ASC | black | down |
+----------+-------------+---------------+------------+----------------+
| 1 | 0 | DESC | black | up |
+----------+-------------+---------------+------------+----------------+
| 1 | 1 | ASC | grey | up |
+----------+-------------+---------------+------------+----------------+
| 1 | 1 | DESC | grey | down |
+----------+-------------+---------------+------------+----------------+
*/
const Span = styled.span`
visibility: hidden; /* use visibility so react-virtualized can account for arrow-width on calcs */
pointer-events: none; /* Do not unhover when on the icon */
padding: 0 0 0 ${vars.spacingM};
`;
const containerDynamicStyles = props => {
if (props.alignRight) {
return css`
flex-direction: row-reverse;
`;
}
return css``;
};
const Container = styled.div`
display: flex;
align-items: center;
justify-content: space-between;
&:hover {
cursor: pointer;
svg {
transform: rotate(180deg);
}
* {
fill: ${vars.colorNeutral};
}
}
${containerDynamicStyles}
&:hover {
${Span} {
visibility: visible;
}
}
`;
const SortableHeader = props => {
const isActive = props.sortBy === props.columnKey;
const isArrowDown = isActive && props.sortDirection === 'DESC';
return (
<Container alignRight={props.alignRight}>
<Text.Body tone="inverted">{props.children}</Text.Body>
<Span
id="arrow"
css={[
isActive &&
css`
visibility: visible;
`,
props.alignRight &&
css`
padding: 0 ${vars.spacingM} 0 0;
`,
]}
>
{isArrowDown ? (
<AngleDownIcon size="medium" color="surface" />
) : (
<AngleUpIcon size="medium" color="neutral60" />
)}
</Span>
</Container>
);
};
SortableHeader.displayName = 'SortableHeader';
SortableHeader.propTypes = {
children: PropTypes.node.isRequired,
sortBy: PropTypes.string,
sortDirection: PropTypes.oneOf(['DESC', 'ASC']),
columnKey: PropTypes.string.isRequired,
alignRight: PropTypes.bool,
};
export default SortableHeader;