@atlaskit/tree
Version:
A React Component for displaying expandable and sortable tree hierarchies
20 lines (19 loc) • 1.33 kB
JavaScript
import _defineProperty from "@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) { _defineProperty(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.
*/
export var 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), {}, _defineProperty({}, itemId, _objectSpread(_objectSpread({}, itemToChange), mutation)))
};
};