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Using CSSTransitionGroup with Emotion.js
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| import React from 'react'; | |
| import styled from '@emotion/styled'; | |
| import { css } from '@emotion/core'; | |
| import { CSSTransition } from 'react-transition-group'; | |
| const has = (key, obj) => Object.prototype.hasOwnProperty.call(obj, key); | |
| const keyframes = [ | |
| 'appear', | |
| 'enter', | |
| 'exit', | |
| 'appear-active', | |
| 'enter-active', | |
| 'exit-active', | |
| 'appear-done', | |
| 'enter-done', | |
| 'exit-done', | |
| ] | |
| const StyledTransition = styled(({ transitions, className, ...props }) => <CSSTransition className={className} classNames={className} {...props} />)` | |
| ${({transitions}) => keyframes.map(keyframe => { | |
| const objectKey = keyframe.replace(/(-[a-z])/, v => v.slice(1).toUpperCase()); | |
| if (has(objectKey, transitions)) { | |
| return css` | |
| &-${keyframe} { | |
| ${transitions[objectKey]} | |
| } | |
| `; | |
| } | |
| return null; | |
| }).filter(x => x !== null)} | |
| `; | |
| export default StyledTransition; |
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