@atlaskit/tree/dist/cjs/utils/mutateTree.js

A React Component for displaying expandable and sortable tree hierarchies

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.mutateTree = void 0;
var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { (0, _defineProperty2.default)(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
/*
  Changes the tree data structure with minimal reference changes.
 */

var mutateTree = exports.mutateTree = function mutateTree(tree, itemId, mutation) {
  var itemToChange = tree.items[itemId];
  if (!itemToChange) {
    // Item not found
    return tree;
  }
  // Returning a clone of the tree structure and overwriting the field coming in mutation
  return {
    // rootId should not change
    rootId: tree.rootId,
    items: _objectSpread(_objectSpread({}, tree.items), {}, (0, _defineProperty2.default)({}, itemId, _objectSpread(_objectSpread({}, itemToChange), mutation)))
  };
};