@atlaskit/editor-common/dist/cjs/ui/WidthProvider/index.js

A package that contains common classes and components for editor and renderer

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
var _typeof = require("@babel/runtime/helpers/typeof");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.WidthProvider = exports.WidthContext = exports.WidthConsumer = void 0;
exports.createWidthContext = createWidthContext;
exports.getBodyWidth = void 0;
exports.getBreakpoint = getBreakpoint;
var _slicedToArray2 = _interopRequireDefault(require("@babel/runtime/helpers/slicedToArray"));
var _react = _interopRequireWildcard(require("react"));
var _react2 = require("@emotion/react");
var _memoizeOne = _interopRequireDefault(require("memoize-one"));
var _rafSchd = _interopRequireDefault(require("raf-schd"));
var _widthDetector = require("@atlaskit/width-detector");
var _isSsr = require("../../core-utils/is-ssr");
function _interopRequireWildcard(e, t) { if ("function" == typeof WeakMap) var r = new WeakMap(), n = new WeakMap(); return (_interopRequireWildcard = function _interopRequireWildcard(e, t) { if (!t && e && e.__esModule) return e; var o, i, f = { __proto__: null, default: e }; if (null === e || "object" != _typeof(e) && "function" != typeof e) return f; if (o = t ? n : r) { if (o.has(e)) return o.get(e); o.set(e, f); } for (var _t in e) "default" !== _t && {}.hasOwnProperty.call(e, _t) && ((i = (o = Object.defineProperty) && Object.getOwnPropertyDescriptor(e, _t)) && (i.get || i.set) ? o(f, _t, i) : f[_t] = e[_t]); return f; })(e, t); }
/**
 * @jsxRuntime classic
 * @jsx jsx
 */

// eslint-disable-next-line @atlaskit/ui-styling-standard/use-compiled, @typescript-eslint/consistent-type-imports -- Ignored via go/DSP-18766; jsx required at runtime for @jsxRuntime classic

var styles = (0, _react2.css)({
  position: 'relative',
  width: '100%'
});
var SCROLLBAR_WIDTH = 30;
function getBreakpoint() {
  var width = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
  var MAX_S = 1266;
  var MAX_M = 2146;
  if (width >= MAX_S && width < MAX_M) {
    return 'M';
  } else if (width >= MAX_M) {
    return 'L';
  }
  return 'S';
}
function createWidthContext() {
  var width = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
  return {
    width: width,
    breakpoint: getBreakpoint(width)
  };
}
var WidthContext = exports.WidthContext = /*#__PURE__*/_react.default.createContext(createWidthContext());
var Provider = WidthContext.Provider;
var Consumer = exports.WidthConsumer = WidthContext.Consumer;
/**
 * 🧱 Internal function: Editor FE Platform
 *
 * Returns the width of the document body.
 *
 * This function is memoized to avoid forcing a layout reflow multiple times.
 * It uses `document.body.offsetWidth` as the source of the width, which can lead to
 * a layout reflow if accessed repeatedly. To mitigate performance issues, the result
 * is cached using `memoizeOne`.
 *
 * @returns {number} The width of the document body or 0 if the document is undefined.
 */
var getBodyWidth = exports.getBodyWidth = (0, _memoizeOne.default)(function () {
  var _document$body$offset, _document$body;
  return (0, _isSsr.isSSR)() ? 0 : (_document$body$offset = (_document$body = document.body) === null || _document$body === void 0 ? void 0 : _document$body.offsetWidth) !== null && _document$body$offset !== void 0 ? _document$body$offset : 0;
});
var WidthProvider = exports.WidthProvider = function WidthProvider(_ref) {
  var className = _ref.className,
    shouldCheckExistingValue = _ref.shouldCheckExistingValue,
    children = _ref.children;
  var existingContextValue = (0, _react.useContext)(WidthContext);
  var _useState = (0, _react.useState)(getBodyWidth),
    _useState2 = (0, _slicedToArray2.default)(_useState, 2),
    width = _useState2[0],
    setWidth = _useState2[1];
  var widthRef = (0, _react.useRef)(width);
  var isMountedRef = (0, _react.useRef)(true);
  var providerValue = (0, _react.useMemo)(function () {
    return createWidthContext(width);
  }, [width]);
  var updateWidth = (0, _react.useMemo)(function () {
    return (0, _rafSchd.default)(function (nextWidth) {
      var currentWidth = widthRef.current || 0;
      // Ignore changes that are less than SCROLLBAR_WIDTH, otherwise it can cause infinite re-scaling
      if (Math.abs(currentWidth - nextWidth) < SCROLLBAR_WIDTH) {
        return;
      }

      // Avoid React memory leak by checking if the component is still mounted
      if (!isMountedRef.current) {
        return;
      }
      widthRef.current = nextWidth;
      setWidth(nextWidth);
    });
  }, []);
  var skipWidthDetection = shouldCheckExistingValue && existingContextValue.width > 0;
  _react.default.useLayoutEffect(function () {
    isMountedRef.current = true;
    return function () {
      isMountedRef.current = false;
    };
  }, []);
  return (0, _react2.jsx)("div", {
    css: styles
    // eslint-disable-next-line @atlaskit/ui-styling-standard/no-classname-prop -- Ignored via go/DSP-18766
    ,
    className: className
  }, !skipWidthDetection && (0, _react2.jsx)(_react.Fragment, null, (0, _react2.jsx)(_widthDetector.WidthObserver, {
    setWidth: updateWidth,
    offscreen: true
  }), (0, _react2.jsx)(Provider, {
    value: providerValue
  }, children)), skipWidthDetection && children);
};