@mui/base/node/useList/useListChangeNotifiers.js

A library of headless ('unstyled') React UI components and low-level hooks.

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = useSelectChangeNotifiers;
var React = _interopRequireWildcard(require("react"));
var _useMessageBus = _interopRequireDefault(require("../utils/useMessageBus"));
function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
const SELECTION_CHANGE_TOPIC = 'select:change-selection';
const HIGHLIGHT_CHANGE_TOPIC = 'select:change-highlight';
/**
 * @ignore - internal hook.
 *
 * This hook is used to notify any interested components about changes in the Select's selection and highlight.
 */
function useSelectChangeNotifiers() {
  const messageBus = (0, _useMessageBus.default)();
  const notifySelectionChanged = React.useCallback(newSelectedItems => {
    messageBus.publish(SELECTION_CHANGE_TOPIC, newSelectedItems);
  }, [messageBus]);
  const notifyHighlightChanged = React.useCallback(newHighlightedItem => {
    messageBus.publish(HIGHLIGHT_CHANGE_TOPIC, newHighlightedItem);
  }, [messageBus]);
  const registerSelectionChangeHandler = React.useCallback(handler => {
    return messageBus.subscribe(SELECTION_CHANGE_TOPIC, handler);
  }, [messageBus]);
  const registerHighlightChangeHandler = React.useCallback(handler => {
    return messageBus.subscribe(HIGHLIGHT_CHANGE_TOPIC, handler);
  }, [messageBus]);
  return {
    notifySelectionChanged,
    notifyHighlightChanged,
    registerSelectionChangeHandler,
    registerHighlightChangeHandler
  };
}