@jswork/next-tree-walk/dist/index.js

Tree data walker.

/*!
 * name: @jswork/next-tree-walk
 * description: Tree data walker.
 * homepage: https://js.work
 * version: 1.0.7
 * date: 2023-08-06 22:46:25
 * license: MIT
 */

'use strict';

Object.defineProperty(exports, '__esModule', {
  value: true
});
exports['default'] = void 0;
var _next = _interopRequireDefault(require('@jswork/next'));
function _interopRequireDefault(obj) {
  return obj && obj.__esModule ? obj : { default: obj };
}
function _typeof(obj) {
  '@babel/helpers - typeof';
  return (
    (_typeof =
      'function' == typeof Symbol && 'symbol' == typeof Symbol.iterator
        ? function (obj) {
            return typeof obj;
          }
        : function (obj) {
            return obj &&
              'function' == typeof Symbol &&
              obj.constructor === Symbol &&
              obj !== Symbol.prototype
              ? 'symbol'
              : typeof obj;
          }),
    _typeof(obj)
  );
}
var FUNC = 'function';
var defaults = {
  template: _next['default'].noop,
  callback: _next['default'].stubValue,
  itemsKey: 'children'
};
_next['default'].treeWalk = function (inItems, inOptions) {
  var options = _next['default'].mix(null, defaults, inOptions);
  var itemsKey = options.itemsKey;
  var itemsGetter =
    _typeof(itemsKey) === FUNC
      ? itemsKey
      : function (_, item) {
          return _next['default'].get(item, itemsKey);
        };
  var walk = function walk(items, level, parent) {
    var depth = level + 1;
    return items.map(function (item, index) {
      var children = itemsGetter(index, item, items);
      var cb = function cb() {
        return walk(children, depth, parent);
      };
      var independent = !(children && children.length);
      var callback = independent ? _next['default'].noop : cb;
      var target = options.callback({
        item: item,
        index: index,
        parent: parent,
        children: children,
        independent: independent,
        depth: depth
      });
      return options.template.call(this, target, callback);
    });
  };
  return walk(inItems, -1, null);
};
if (typeof module !== 'undefined' && module.exports && typeof wx === 'undefined') {
  module.exports = _next['default'].treeWalk;
}
var _default = _next['default'].treeWalk;
exports['default'] = _default;