@dnb/eufemia/es/components/list-format/ListFormat.js

DNB Eufemia Design System UI Library

"use client";

import _extends from "@babel/runtime/helpers/esm/extends";
import React, { Fragment, useContext, useMemo } from 'react';
import { LOCALE } from "../../shared/defaults.js";
import { extendPropsWithContext } from "../../shared/component-helper.js";
import SharedContext from "../../shared/Context.js";
import { Li, Ol, Ul } from "../../elements/index.js";
import classNames from 'classnames';
function ListFormat(localProps) {
  const {
    locale,
    ListFormat
  } = useContext(SharedContext);
  const allProps = extendPropsWithContext(localProps, {}, ListFormat);
  const {
    value,
    format,
    variant = 'text',
    listType,
    children,
    className,
    ...props
  } = allProps;
  const list = useMemo(() => {
    const isListVariant = variant !== 'text';
    const valueToUse = replaceRootFragment(children) || value;
    if (!Array.isArray(valueToUse)) {
      return [valueToUse];
    }
    return isListVariant ? React.Children.map(valueToUse, (child, index) => {
      return React.createElement(Li, {
        key: index
      }, child);
    }) : valueToUse;
  }, [value, children, variant, listType]);
  const result = useMemo(() => {
    if (variant === 'text') {
      return listFormat(list, {
        locale,
        format
      });
    }
    const ListElement = variant.startsWith('ol') ? Ol : Ul;
    return React.createElement(ListElement, _extends({
      type: listType !== 'unstyled' ? listType : null,
      className: classNames('dnb-list-format', className, listType === 'unstyled' && 'dnb-unstyled-list')
    }, props), list);
  }, [format, list, locale]);
  return result;
}
export function listFormat(list, {
  locale = LOCALE,
  format = {
    style: 'long',
    type: 'conjunction'
  }
} = {}) {
  if (!Array.isArray(list)) {
    return list;
  }
  list = replaceRootFragment(list).filter(function (item) {
    const isNan = typeof item === 'number' && isNaN(item);
    return item !== undefined && item !== false && item !== null && !isNan;
  });
  const buffer = new Map();
  const hasJSX = list.some(v => typeof v === 'object');
  const shadow = list.map((v, i) => {
    if (hasJSX) {
      const id = `id-${i}`;
      buffer.set(id, v);
      return `{${id}}`;
    }
    return String(v);
  });
  try {
    const formatter = new Intl.ListFormat(locale, format);
    const formattedList = formatter.format(shadow);
    if (hasJSX) {
      return formattedList.split(/\{(id-[0-9]+)\}/).map((v, i) => {
        if (v.startsWith('id-')) {
          const element = buffer.get(v);
          return element.key ? element : React.createElement(React.Fragment, {
            key: i
          }, element);
        }
        return v;
      });
    }
    return formattedList;
  } catch (error) {
    if (hasJSX) {
      return list;
    }
    return list.join(', ');
  }
}
function replaceRootFragment(children) {
  if (children?.type === Fragment) {
    return React.Children.toArray(children?.props?.children);
  }
  if (Array.isArray(children)) {
    const firstChild = children[0];
    if (React.Children.count(children) === 1 && firstChild?.type === Fragment) {
      return React.Children.toArray(firstChild?.props?.children);
    }
    return children;
  }
  return children;
}
ListFormat._supportsSpacingProps = true;
export default ListFormat;
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