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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 | 1x 1x 1x 1x 1x 5x 1x 5x 4x 4x 1x 5x 5x 1x 1x 1x 1x | /** @jsx jsx */ import * as React from "react"; import { keyframes, css, jsx } from "@emotion/core"; import { Keyframes } from "@emotion/serialize"; import onlyUpdateForKeys from "recompose/onlyUpdateForKeys"; import { sizeDefaults, sizeKeys } from "./helpers/proptypes"; import { StyleFunction, PrecompiledCss, LoaderSizeProps } from "./interfaces"; const clip: Keyframes = keyframes` 0% {transform: rotate(0deg) scale(1)} 50% {transform: rotate(180deg) scale(0.8)} 100% {transform: rotate(360deg) scale(1)} `; class Loader extends React.PureComponent<LoaderSizeProps> { public static defaultProps: LoaderSizeProps = sizeDefaults(35); public style: StyleFunction = (): PrecompiledCss => { const { size, sizeUnit, color } = this.props; return css` background: transparent !important; width: ${`${size}${sizeUnit}`}; height: ${`${size}${sizeUnit}`}; border-radius: 100%; border: 2px solid; border-color: ${color}; border-bottom-color: transparent; display: inline-block; animation: ${clip} 0.75s 0s infinite linear; animation-fill-mode: both; `; }; public render(): JSX.Element | null { const { loading, css } = this.props; return loading ? <div css={[this.style(), css]} /> : null; } } const Component: React.ComponentClass<LoaderSizeProps> = onlyUpdateForKeys(sizeKeys)(Loader); Component.defaultProps = Loader.defaultProps; export default Component; |