84 lines
1.7 KiB
JavaScript
84 lines
1.7 KiB
JavaScript
import React from 'react'
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import PropTypes from 'prop-types'
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import classNames from 'classnames/bind'
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// Bind CSS Modules global variable `_s` to classNames module
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const cx = classNames.bind(_s)
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// Define sizes for enumeration for Heading component `size` prop
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const SIZES = {
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h1: 'h1',
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h2: 'h2',
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h3: 'h3',
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h4: 'h4',
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h5: 'h5',
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h6: 'h6',
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}
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const ARIA_LEVELS = {
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h1: '1',
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h2: '2',
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h3: '3',
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h4: '4',
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h5: '5',
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h6: '6',
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}
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/**
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* Renders an H-tag
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* @param {bool} [props.isCentered] - if text is centered within the element
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* @param {string} [props.size='h1'] - the size of the heading
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*/
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class Heading extends React.PureComponent {
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render() {
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const { children, size, isCentered } = this.props
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// Each size has it's own custom style
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const classes = cx({
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d: 1,
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text: 1,
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textAlignCenter: isCentered,
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cPrimary: [SIZES.h1, SIZES.h2].indexOf(size) > -1,
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cSecondary: [SIZES.h3, SIZES.h4, SIZES.h5].indexOf(size) > -1,
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fs24PX: size === SIZES.h1,
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fs19PX: size === SIZES.h2,
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fs16PX: size === SIZES.h3,
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fs13PX: size === SIZES.h4,
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fs12PX: size === SIZES.h5,
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mt5: [SIZES.h4].indexOf(size) > -1,
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lineHeight2: size === SIZES.h5,
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py2: size === SIZES.h5,
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fw500: [SIZES.h1, SIZES.h3, SIZES.h5].indexOf(size) > -1,
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fw600: [SIZES.h2, SIZES.h4].indexOf(size) > -1,
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})
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return React.createElement(
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size,
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{
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className: classes,
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role: 'heading',
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'aria-level': ARIA_LEVELS[size],
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},
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children,
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)
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}
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}
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Heading.propTypes = {
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children: PropTypes.any,
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isCentered: PropTypes.bool,
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size: PropTypes.oneOf(Object.keys(SIZES)),
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}
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Heading.defaultProps = {
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size: SIZES.h1,
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}
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export default Heading |