acud/lib/table/hooks/useLazyKVMap.js

acg react 组件库

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
var _typeof3 = require("@babel/runtime/helpers/typeof");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = useLazyKVMap;
var _typeof2 = _interopRequireDefault(require("@babel/runtime/helpers/typeof"));
var React = _interopRequireWildcard(require("react"));
function _interopRequireWildcard(e, t) { if ("function" == typeof WeakMap) var r = new WeakMap(), n = new WeakMap(); return (_interopRequireWildcard = function _interopRequireWildcard(e, t) { if (!t && e && e.__esModule) return e; var o, i, f = { __proto__: null, "default": e }; if (null === e || "object" != _typeof3(e) && "function" != typeof e) return f; if (o = t ? n : r) { if (o.has(e)) return o.get(e); o.set(e, f); } for (var _t in e) "default" !== _t && {}.hasOwnProperty.call(e, _t) && ((i = (o = Object.defineProperty) && Object.getOwnPropertyDescriptor(e, _t)) && (i.get || i.set) ? o(f, _t, i) : f[_t] = e[_t]); return f; })(e, t); }
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 (record && (0, _typeof2["default"])(record) === 'object' && 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];
}