ant-design/components/icon/utils.ts

import { ThemeType } from "./index";
import warning from "../_util/warning";

// These props make sure that the SVG behaviours like general text.
// Reference: https://blog.prototypr.io/align-svg-icons-to-text-and-say-goodbye-to-font-icons-d44b3d7b26b4
export const svgBaseProps = {
  width: "1em",
  height: "1em",
  fill: "currentColor",
  ["aria-hidden"]: "true",
};

const fillTester = /-fill$/;
const outlineTester = /-o$/;
const twoToneTester = /-twotone$/;

export function getThemeFromTypeName(type: string): ThemeType | null {
  let result: ThemeType | null = null;
  if (fillTester.test(type)) {
    result = "filled";
  } else if (outlineTester.test(type)) {
    result = "outlined";
  } else if (twoToneTester.test(type)) {
    result = "twoTone";
  }
  return result;
}

export function removeTypeTheme(type: string) {
  return type
    .replace(fillTester, "")
    .replace(outlineTester, "")
    .replace(twoToneTester, "");
}

export function withThemeSuffix(type: string, theme: ThemeType) {
  let result = type;
  if (theme === "filled") {
    result += "-fill";
  } else if (theme === "outlined") {
    result += "-o";
  } else if (theme === "twoTone") {
    result += "-twotone";
  } else {
    warning(false, `This icon '${type}' has unknown theme '${theme}'`);
  }
  return result;
}