All files / src SyncLoader.tsx

100% Statements 25/25
100% Branches 9/9
100% Functions 3/3
100% Lines 17/17

Press n or j to go to the next uncovered block, b, p or k for the previous block.

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 50 51 52  1x 1x   1x   1x     1x           5x 1x   5x 12x   12x                       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 { sizeMarginDefaults, sizeMarginKeys } from "./helpers/proptypes";
import { PrecompiledCss, LoaderSizeMarginProps, StyleFunctionWithIndex } from "./interfaces";
 
const sync: Keyframes = keyframes`
  33% {transform: translateY(10px)}
  66% {transform: translateY(-10px)}
  100% {transform: translateY(0)}
`;
 
class Loader extends React.PureComponent<LoaderSizeMarginProps> {
  public static defaultProps: LoaderSizeMarginProps = sizeMarginDefaults(15);
 
  public style: StyleFunctionWithIndex = (i: number): PrecompiledCss => {
    const { color, size, sizeUnit, margin } = this.props;
 
    return css`
      background-color: ${color};
      width: ${`${size}${sizeUnit}`};
      height: ${`${size}${sizeUnit}`};
      margin: ${margin};
      border-radius: 100%;
      display: inline-block;
      animation: ${sync} 0.6s ${i * 0.07}s infinite ease-in-out;
      animation-fill-mode: both;
    `;
  };
 
  public render(): JSX.Element | null {
    const { loading, css } = this.props;
 
    return loading ? (
      <div css={[css]}>
        <div css={this.style(1)} />
        <div css={this.style(2)} />
        <div css={this.style(3)} />
      </div>
    ) : null;
  }
}
 
const Component: React.ComponentClass<LoaderSizeMarginProps> = onlyUpdateForKeys(sizeMarginKeys)(
  Loader
);
Component.defaultProps = Loader.defaultProps;
export default Component;