@mui/x-tree-view/internals/MinimalTreeViewStore/MinimalTreeViewStore.utils.js

The community edition of the MUI X Tree View components.

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.createMinimalInitialState = createMinimalInitialState;
exports.deriveStateFromParameters = deriveStateFromParameters;
var _extends2 = _interopRequireDefault(require("@babel/runtime/helpers/extends"));
var _empty = require("@base-ui/utils/empty");
var _utils = require("../plugins/expansion/utils");
var _items = require("../plugins/items");
/**
 * Returns the properties of the state that are derived from the parameters.
 * This do not contain state properties that don't update whenever the parameters update.
 */
function deriveStateFromParameters(parameters) {
  return {
    disabledItemsFocusable: parameters.disabledItemsFocusable ?? false,
    itemChildrenIndentation: parameters.itemChildrenIndentation ?? '12px',
    providedTreeId: parameters.id,
    // TODO: Fix
    expansionTrigger: (0, _utils.getExpansionTrigger)({
      isItemEditable: parameters.isItemEditable,
      expansionTrigger: parameters.expansionTrigger
    }),
    disableSelection: parameters.disableSelection ?? false,
    multiSelect: parameters.multiSelect ?? false,
    checkboxSelection: parameters.checkboxSelection ?? false,
    selectionPropagation: parameters.selectionPropagation ?? _empty.EMPTY_OBJECT,
    itemHeight: parameters.itemHeight ?? null
  };
}
function applyModelInitialValue(controlledValue, defaultValue, fallback) {
  if (controlledValue !== undefined) {
    return controlledValue;
  }
  if (defaultValue !== undefined) {
    return defaultValue;
  }
  return fallback;
}
function createMinimalInitialState(parameters) {
  return (0, _extends2.default)({
    treeId: parameters.defaultId,
    focusedItemId: null
  }, deriveStateFromParameters(parameters), _items.TreeViewItemsPlugin.buildItemsStateIfNeeded(parameters), {
    expandedItems: applyModelInitialValue(parameters.expandedItems, parameters.defaultExpandedItems, []),
    selectedItems: applyModelInitialValue(parameters.selectedItems, parameters.defaultSelectedItems, parameters.multiSelect ? _empty.EMPTY_ARRAY : null)
  });
}