index.ts

/**
 * This file is consumed by fabric.
 * The `./node` and `./browser` files define the env variable that is used by this module.
 * The `./node` module sets the env at import time.
 * The `./browser` module is defined to be the default env and doesn't set the env at all.
 * This is done in order to support isomorphic usage for browser and node applications
 * since window and document aren't defined at time of import in SSR, we can't set env so we avoid it by deferring to the default env.
 */

import { TFabricEnv } from './types';
import { getEnv as getBrowserEnv } from './browser';
import type { DOMWindow } from 'jsdom';

let env: TFabricEnv;

export const setEnv = (value: TFabricEnv) => {
  env = value;
};

export const getEnv = () => env || getBrowserEnv();

export const getDocument = (): Document => getEnv().document;

export const getWindow = (): Window | DOMWindow => getEnv().window;

export const setEnvForTests = (window: Window | DOMWindow) => {
  env.document = window.document;
  env.window = window;
};