@mui/x-tree-view/internals/plugins/useTreeViewItems/useTreeViewItems.utils.js

The community edition of the MUI X Tree View components.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.isItemDisabled = exports.buildSiblingIndexes = exports.TREE_VIEW_ROOT_PARENT_ID = void 0;
const TREE_VIEW_ROOT_PARENT_ID = exports.TREE_VIEW_ROOT_PARENT_ID = '__TREE_VIEW_ROOT_PARENT_ID__';
const buildSiblingIndexes = siblings => {
  const siblingsIndexLookup = {};
  siblings.forEach((childId, index) => {
    siblingsIndexLookup[childId] = index;
  });
  return siblingsIndexLookup;
};

/**
 * Check if an item is disabled.
 * This method should only be used in selectors that are checking if several items are disabled.
 * Otherwise, use the `selectorIsItemDisabled` selector.
 * @returns
 */
exports.buildSiblingIndexes = buildSiblingIndexes;
const isItemDisabled = (itemMetaLookup, itemId) => {
  if (itemId == null) {
    return false;
  }
  let itemMeta = itemMetaLookup[itemId];

  // This can be called before the item has been added to the item map.
  if (!itemMeta) {
    return false;
  }
  if (itemMeta.disabled) {
    return true;
  }
  while (itemMeta.parentId != null) {
    itemMeta = itemMetaLookup[itemMeta.parentId];
    if (!itemMeta) {
      return false;
    }
    if (itemMeta.disabled) {
      return true;
    }
  }
  return false;
};
exports.isItemDisabled = isItemDisabled;