All files / src ClimbingBoxLoader.tsx

100% Statements 31/31
100% Branches 15/15
100% Functions 6/6
100% Lines 25/25

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

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/** @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";
import { StyleFunction, PrecompiledCss, LoaderSizeProps } from "./interfaces";
 
const climbingBox: Keyframes = keyframes`
  0% {transform:translate(0, -1em) rotate(-45deg)}
  5% {transform:translate(0, -1em) rotate(-50deg)}
  20% {transform:translate(1em, -2em) rotate(47deg)}
  25% {transform:translate(1em, -2em) rotate(45deg)}
  30% {transform:translate(1em, -2em) rotate(40deg)}
  45% {transform:translate(2em, -3em) rotate(137deg)}
  50% {transform:translate(2em, -3em) rotate(135deg)}
  55% {transform:translate(2em, -3em) rotate(130deg)}
  70% {transform:translate(3em, -4em) rotate(217deg)}
  75% {transform:translate(3em, -4em) rotate(220deg)}
  100% {transform:translate(0, -1em) rotate(-225deg)}
`;
 
class Loader extends React.PureComponent<LoaderSizeProps> {
  public static defaultProps: LoaderSizeProps = sizeDefaults(15);
 
  public style: StyleFunction = (): PrecompiledCss => {
    const { color } = this.props;
 
    return css`
      position: absolute;
      left: 0;
      bottom: -0.1em;
      height: 1em;
      width: 1em;
      background-color: transparent;
      border-radius: 15%;
      border: 0.25em solid ${color};
      transform: translate(0, -1em) rotate(-45deg);
      animation-fill-mode: both;
      animation: ${climbingBox} 2.5s infinite cubic-bezier(0.79, 0, 0.47, 0.97);
    `;
  };
 
  public wrapper: StyleFunction = (): PrecompiledCss => {
    const { size, sizeUnit } = this.props;
 
    return css`
      position: absolute;
      top: 50%;
      left: 50%;
      margin-top: -2.7em;
      margin-left: -2.7em;
      width: 5.4em;
      height: 5.4em;
      font-size: ${`${size}${sizeUnit}`};
    `;
  };
 
  public hill: StyleFunction = (): PrecompiledCss => {
    const { color } = this.props;
 
    return css`
      position: absolute;
      width: 7.1em;
      height: 7.1em;
      top: 1.7em;
      left: 1.7em;
      border-left: 0.25em solid ${color};
      transform: rotate(45deg);
    `;
  };
 
  public container: StyleFunction = (): PrecompiledCss => {
    return css`
      position: relative;
      width: 7.1em;
      height: 7.1em;
    `;
  };
 
  public render(): JSX.Element | null {
    const { loading, css } = this.props;
 
    return loading ? (
      <div css={[this.container(), css]}>
        <div css={this.wrapper()}>
          <div css={this.style()} />
          <div css={this.hill()} />
        </div>
      </div>
    ) : null;
  }
}
 
const Component: React.ComponentClass<LoaderSizeProps> = onlyUpdateForKeys(sizeKeys)(Loader);
Component.defaultProps = Loader.defaultProps;
export default Component;