@react-aria/listbox/src/utils.ts

Spectrum UI components in React

/*
 * Copyright 2020 Adobe. All rights reserved.
 * This file is licensed to you under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License. You may obtain a copy
 * of the License at http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software distributed under
 * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
 * OF ANY KIND, either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */

import {Key} from 'react';
import {ListState} from '@react-stately/list';

export const listIds = new WeakMap<ListState<unknown>, string>();

function normalizeKey(key: Key): string {
  if (typeof key === 'string') {
    return key.replace(/\s*/g, '');
  }

  return '' + key;
}

export function getItemId<T>(state: ListState<T>, itemKey: Key): string {
  let listId = listIds.get(state);

  if (!listId) {
    throw new Error('Unknown list');
  }

  return `${listId}-option-${normalizeKey(itemKey)}`;
}