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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | 1x 1x | import { keyframes } from '@emotion/react'; import { DROPDOWN_STATE_ENTERING, DROPDOWN_STATE_EXITING } from './constants'; import pipe from '../../util/pipe'; const popIn = keyframes` from { opacity: 0; transform: translateY(48px); } to { opacity: 1; transform: translateY(0px); } `; const popOut = keyframes` to { opacity: 0; transform: translateY(48px); } `; function getAnimationCss(state) { if (state === DROPDOWN_STATE_ENTERING) { return { animation: `${popIn} 0.4s ease forwards`, }; } if (state === DROPDOWN_STATE_EXITING) { return { animation: `${popOut} 0.24s ease forwards`, }; } return {}; } function getStaticCss(animationCss, relative) { if (relative) return null; return { ...animationCss, overflow: 'hidden', position: 'fixed', willChange: 'opacity, transform', zIndex: 10, }; } export default pipe(getAnimationCss, getStaticCss); |