@mui/material/node/Tabs/ScrollbarSize.js

React components that implement Google's Material Design.

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = ScrollbarSize;
var _extends2 = _interopRequireDefault(require("@babel/runtime/helpers/extends"));
var _objectWithoutPropertiesLoose2 = _interopRequireDefault(require("@babel/runtime/helpers/objectWithoutPropertiesLoose"));
var React = _interopRequireWildcard(require("react"));
var _propTypes = _interopRequireDefault(require("prop-types"));
var _debounce = _interopRequireDefault(require("../utils/debounce"));
var _utils = require("../utils");
var _jsxRuntime = require("react/jsx-runtime");
const _excluded = ["onChange"];
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 styles = {
  width: 99,
  height: 99,
  position: 'absolute',
  top: -9999,
  overflow: 'scroll'
};

/**
 * @ignore - internal component.
 * The component originates from https://github.com/STORIS/react-scrollbar-size.
 * It has been moved into the core in order to minimize the bundle size.
 */
function ScrollbarSize(props) {
  const {
      onChange
    } = props,
    other = (0, _objectWithoutPropertiesLoose2.default)(props, _excluded);
  const scrollbarHeight = React.useRef();
  const nodeRef = React.useRef(null);
  const setMeasurements = () => {
    scrollbarHeight.current = nodeRef.current.offsetHeight - nodeRef.current.clientHeight;
  };
  React.useEffect(() => {
    const handleResize = (0, _debounce.default)(() => {
      const prevHeight = scrollbarHeight.current;
      setMeasurements();
      if (prevHeight !== scrollbarHeight.current) {
        onChange(scrollbarHeight.current);
      }
    });
    const containerWindow = (0, _utils.ownerWindow)(nodeRef.current);
    containerWindow.addEventListener('resize', handleResize);
    return () => {
      handleResize.clear();
      containerWindow.removeEventListener('resize', handleResize);
    };
  }, [onChange]);
  React.useEffect(() => {
    setMeasurements();
    onChange(scrollbarHeight.current);
  }, [onChange]);
  return /*#__PURE__*/(0, _jsxRuntime.jsx)("div", (0, _extends2.default)({
    style: styles,
    ref: nodeRef
  }, other));
}
process.env.NODE_ENV !== "production" ? ScrollbarSize.propTypes = {
  onChange: _propTypes.default.func.isRequired
} : void 0;