lens/packages/utility-features/utilities/src/cssVar.ts

/**
 * Copyright (c) OpenLens Authors. All rights reserved.
 * Licensed under MIT License. See LICENSE in root directory for more information.
 */

// Helper for getting/setting css-variables

export function cssVar(elem: HTMLElement) {
  return {
    get(name: string) {
      const value = window.getComputedStyle(elem).getPropertyValue(name).trim();

      return {
        toString: () => value,
        valueOf: () => parseFloat(value),
      };
    },
    set(name: string, value: number | string) {
      if (typeof value === "number") value = `${value}px`;
      elem.style.setProperty(name, value);
    },
  };
}