kepler.gl/src/components/common/loading-spinner.js

kepler.gl is a webgl based application to visualize large scale location data in the browser

// Copyright (c) 2018 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

import React from 'react';
import styled, {keyframes} from 'styled-components';

const animationName = keyframes`
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
`;

const Loader = styled.span`
    border-left-color: rgb(198, 198, 198);
    border-top-color: rgb(198, 198, 198);
    animation: _preloader_spin_ 500ms linear infinite;
    border-radius: 50%;
    border-bottom-color: transparent;
    border-right-color: transparent;
    cursor: wait;
    border-style: solid;
    display: block;
    animation-name: ${animationName};
}`;

const LoadingSpinner = ({size = 32}) => (
    <Loader style={{width: `${size}px`, height: `${size}px`}}/>
);

export default LoadingSpinner;