rc-tree-select/lib/hooks/useTreeData.js

tree-select ui component for react

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
var _typeof = require("@babel/runtime/helpers/typeof");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = useTreeData;
var _objectSpread2 = _interopRequireDefault(require("@babel/runtime/helpers/objectSpread2"));
var React = _interopRequireWildcard(require("react"));
var _legacyUtil = require("../utils/legacyUtil");
function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(e) { return e ? t : r; })(e); }
function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != _typeof(e) && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && Object.prototype.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; }
function parseSimpleTreeData(treeData, _ref) {
  var id = _ref.id,
    pId = _ref.pId,
    rootPId = _ref.rootPId;
  var keyNodes = {};
  var rootNodeList = [];

  // Fill in the map
  var nodeList = treeData.map(function (node) {
    var clone = (0, _objectSpread2.default)({}, node);
    var key = clone[id];
    keyNodes[key] = clone;
    clone.key = clone.key || key;
    return clone;
  });

  // Connect tree
  nodeList.forEach(function (node) {
    var parentKey = node[pId];
    var parent = keyNodes[parentKey];

    // Fill parent
    if (parent) {
      parent.children = parent.children || [];
      parent.children.push(node);
    }

    // Fill root tree node
    if (parentKey === rootPId || !parent && rootPId === null) {
      rootNodeList.push(node);
    }
  });
  return rootNodeList;
}

/**
 * Convert `treeData` or `children` into formatted `treeData`.
 * Will not re-calculate if `treeData` or `children` not change.
 */
function useTreeData(treeData, children, simpleMode) {
  return React.useMemo(function () {
    if (treeData) {
      return simpleMode ? parseSimpleTreeData(treeData, (0, _objectSpread2.default)({
        id: 'id',
        pId: 'pId',
        rootPId: null
      }, simpleMode !== true ? simpleMode : {})) : treeData;
    }
    return (0, _legacyUtil.convertChildrenToData)(children);
  }, [children, simpleMode, treeData]);
}