antd/lib/table/hooks/useLazyKVMap.js

An enterprise-class UI design language and React components implementation

"use strict";

function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = useLazyKVMap;

var React = _interopRequireWildcard(require("react"));

function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function _getRequireWildcardCache() { return cache; }; return cache; }

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function useLazyKVMap(data, childrenColumnName, getRowKey) {
  var mapCacheRef = React.useRef({});

  function getRecordByKey(key) {
    if (!mapCacheRef.current || mapCacheRef.current.data !== data || mapCacheRef.current.childrenColumnName !== childrenColumnName || mapCacheRef.current.getRowKey !== getRowKey) {
      /* eslint-disable no-inner-declarations */
      var dig = function dig(records) {
        records.forEach(function (record, index) {
          var rowKey = getRowKey(record, index);
          kvMap.set(rowKey, record);

          if (childrenColumnName in record) {
            dig(record[childrenColumnName] || []);
          }
        });
      };
      /* eslint-enable */


      var kvMap = new Map();
      dig(data);
      mapCacheRef.current = {
        data: data,
        childrenColumnName: childrenColumnName,
        kvMap: kvMap,
        getRowKey: getRowKey
      };
    }

    return mapCacheRef.current.kvMap.get(key);
  }

  return [getRecordByKey];
}