@elastic/eui/lib/components/call_out/use_layout_observer.js

Elastic UI Component Library

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.useLayoutObserver = void 0;
var _react = require("react");
var _resize_observer = require("../observer/resize_observer/resize_observer");
function _slicedToArray(r, e) { return _arrayWithHoles(r) || _iterableToArrayLimit(r, e) || _unsupportedIterableToArray(r, e) || _nonIterableRest(); }
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _unsupportedIterableToArray(r, a) { if (r) { if ("string" == typeof r) return _arrayLikeToArray(r, a); var t = {}.toString.call(r).slice(8, -1); return "Object" === t && r.constructor && (t = r.constructor.name), "Map" === t || "Set" === t ? Array.from(r) : "Arguments" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0; } }
function _arrayLikeToArray(r, a) { (null == a || a > r.length) && (a = r.length); for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e]; return n; }
function _iterableToArrayLimit(r, l) { var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (null != t) { var e, n, i, u, a = [], f = !0, o = !1; try { if (i = (t = t.call(r)).next, 0 === l) { if (Object(t) !== t) return; f = !1; } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0); } catch (r) { o = !0, n = r; } finally { try { if (!f && null != t.return && (u = t.return(), Object(u) !== u)) return; } finally { if (o) throw n; } } return a; } }
function _arrayWithHoles(r) { if (Array.isArray(r)) return r; } /*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the Elastic License
 * 2.0 and the Server Side Public License, v 1; you may not use this file except
 * in compliance with, at your election, the Elastic License 2.0 or the Server
 * Side Public License, v 1.
 */
var SUPER_NARROW_WIDTH = 400;
var WIDE_BREAKPOINTS = {
  s: 800,
  m: 1000
};

/**
 * Observes the rendered width and sets `data-layout` on the root
 * element so that CSS can respond to size changes.
 *
 * This is an alternative to native CSS container queries. Its purpose is to handle cases where
 * container queries would collapse if the element is placed inside a container without a defined size.
 */
var useLayoutObserver = exports.useLayoutObserver = function useLayoutObserver(size) {
  var elementRef = (0, _react.useRef)(null);
  (0, _react.useEffect)(function () {
    var element = elementRef.current;
    if (!element || !_resize_observer.hasResizeObserver) return;
    var wide = WIDE_BREAKPOINTS[size];
    var observer = new ResizeObserver(function (_ref) {
      var _ref2 = _slicedToArray(_ref, 1),
        entry = _ref2[0];
      var width = entry.borderBoxSize[0].inlineSize;
      if (width <= SUPER_NARROW_WIDTH) {
        element.setAttribute('data-layout', 'superNarrow');
      } else if (width >= wide) {
        element.setAttribute('data-layout', 'wide');
      } else {
        element.removeAttribute('data-layout');
      }
    });
    observer.observe(element);
    return function () {
      return observer.disconnect();
    };
  }, [size]);
  return elementRef;
};