acud/lib/select/src/hooks/useCacheDisplayValue.js

acg react 组件库

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
var _typeof = require("@babel/runtime/helpers/typeof");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = useCacheDisplayValue;
var _extends2 = _interopRequireDefault(require("@babel/runtime/helpers/extends"));
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" != _typeof(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 useCacheDisplayValue(values) {
  var prevValuesRef = React.useRef(values);
  var mergedValues = React.useMemo(function () {
    // Create value - label map
    var valueLabels = new Map();
    prevValuesRef.current.forEach(function (_ref) {
      var value = _ref.value,
        label = _ref.label;
      if (value !== label) {
        valueLabels.set(value, label);
      }
    });
    var resultValues = values.map(function (item) {
      var cacheLabel = valueLabels.get(item.value);
      if (item.isCacheable && cacheLabel) {
        return (0, _extends2["default"])((0, _extends2["default"])({}, item), {
          label: cacheLabel
        });
      }
      return item;
    });
    prevValuesRef.current = resultValues;
    return resultValues;
  }, [values]);
  return mergedValues;
}