@mui/x-tree-view/internals/plugins/useTreeViewExpansion/useTreeViewExpansion.selectors.js

The community edition of the MUI X Tree View components.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.selectorItemExpansionTrigger = exports.selectorIsItemExpanded = exports.selectorIsItemExpandable = exports.selectorExpandedItemsMap = exports.selectorExpandedItems = void 0;
var _selectors = require("../../utils/selectors");
var _useTreeViewItems = require("../useTreeViewItems/useTreeViewItems.selectors");
const selectorExpansion = state => state.expansion;

/**
 * Get the expanded items.
 * @param {TreeViewState<[UseTreeViewExpansionSignature]>} state The state of the tree view.
 * @returns {TreeViewItemId[]} The expanded items.
 */
const selectorExpandedItems = exports.selectorExpandedItems = (0, _selectors.createSelector)([selectorExpansion], expansionState => expansionState.expandedItems);

/**
 * Get the expanded items as a Map.
 * @param {TreeViewState<[UseTreeViewExpansionSignature]>} state The state of the tree view.
 * @returns {TreeViewExpansionValue} The expanded items as a Map.
 */
const selectorExpandedItemsMap = exports.selectorExpandedItemsMap = (0, _selectors.createSelector)([selectorExpandedItems], expandedItems => {
  const expandedItemsMap = new Map();
  expandedItems.forEach(id => {
    expandedItemsMap.set(id, true);
  });
  return expandedItemsMap;
});

/**
 * Check if an item is expanded.
 * @param {TreeViewState<[UseTreeViewExpansionSignature]>} state The state of the tree view.
 * @returns {boolean} `true` if the item is expanded, `false` otherwise.
 */
const selectorIsItemExpanded = exports.selectorIsItemExpanded = (0, _selectors.createSelector)([selectorExpandedItemsMap, (_, itemId) => itemId], (expandedItemsMap, itemId) => expandedItemsMap.has(itemId));

/**
 * Check if an item is expandable.
 * @param {TreeViewState<[UseTreeViewItemsSignature]>} state The state of the tree view.
 * @returns {boolean} `true` if the item is expandable, `false` otherwise.
 */
const selectorIsItemExpandable = exports.selectorIsItemExpandable = (0, _selectors.createSelector)([_useTreeViewItems.selectorItemMeta], itemMeta => itemMeta?.expandable ?? false);

/**
 * Get the slot that triggers the item's expansion when clicked.
 * @param {TreeViewState<[UseTreeViewExpansionSignature]>} state The state of the tree view.
 * @returns {'content' | 'iconContainer'} The slot that triggers the item's expansion when clicked. Is `null` if the item is not expandable.
 */
const selectorItemExpansionTrigger = exports.selectorItemExpansionTrigger = (0, _selectors.createSelector)([selectorExpansion], expansionState => expansionState.expansionTrigger);