ButtonWithIcon

gistfile1.txt

import styled from "styled-components";

const ButtonWithIcon = styled.button`
  background-image: url(${props => props.url});
  background-size: 14px 14px;
  background-position: 10px center;
  background-repeat: no-repeat;
  background-color: ${props => props.bg || "#47B4FE"};
  padding: ${props => props.pTB || "10px"} 16px;
  padding-left: 32px;
  border-radius: 5px;
  color: white;
  :hover {
    background-color: ${props =>
      LightenDarkenColor(
        props.bg || "#474BFE",
        props.hoverLightenDarken || -20
      )};
    cursor: pointer;
  }
`;

function LightenDarkenColor(col, amt) {
  var usePound = false;

  if (col[0] == "#") {
    col = col.slice(1);
    usePound = true;
  }

  var num = parseInt(col, 16);

  var r = (num >> 16) + amt;

  if (r > 255) r = 255;
  else if (r < 0) r = 0;

  var b = ((num >> 8) & 0x00ff) + amt;

  if (b > 255) b = 255;
  else if (b < 0) b = 0;

  var g = (num & 0x0000ff) + amt;

  if (g > 255) g = 255;
  else if (g < 0) g = 0;

  return (usePound ? "#" : "") + (g | (b << 8) | (r << 16)).toString(16);
}