"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.useResizeObserver = exports.EuiResizeObserver = void 0;
var _react = require("react");
var _observer = require("../observer");
function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
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; }
function _classCallCheck(a, n) { if (!(a instanceof n)) throw new TypeError("Cannot call a class as a function"); }
function _inherits(t, e) { if ("function" != typeof e && null !== e) throw new TypeError("Super expression must either be null or a function"); t.prototype = Object.create(e && e.prototype, { constructor: { value: t, writable: !0, configurable: !0 } }), Object.defineProperty(t, "prototype", { writable: !1 }), e && _setPrototypeOf(t, e); }
function _setPrototypeOf(t, e) { return _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function (t, e) { return t.__proto__ = e, t; }, _setPrototypeOf(t, e); }
function _createSuper(t) { var r = _isNativeReflectConstruct(); return function () { var e, o = _getPrototypeOf(t); if (r) { var s = _getPrototypeOf(this).constructor; e = Reflect.construct(o, arguments, s); } else e = o.apply(this, arguments); return _possibleConstructorReturn(this, e); }; }
function _possibleConstructorReturn(t, e) { if (e && ("object" == _typeof(e) || "function" == typeof e)) return e; if (void 0 !== e) throw new TypeError("Derived constructors may only return object or undefined"); return _assertThisInitialized(t); }
function _assertThisInitialized(e) { if (void 0 === e) throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); return e; }
function _isNativeReflectConstruct() { try { var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); } catch (t) {} return (_isNativeReflectConstruct = function _isNativeReflectConstruct() { return !!t; })(); }
function _getPrototypeOf(t) { return _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function (t) { return t.__proto__ || Object.getPrototypeOf(t); }, _getPrototypeOf(t); }
function _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, e; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : i + ""; }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); } /*
 * SPDX-License-Identifier: Apache-2.0
 *
 * The OpenSearch Contributors require contributions made to
 * this file be licensed under the Apache-2.0 license or a
 * compatible open source license.
 *
 * Modifications Copyright OpenSearch Contributors. See
 * GitHub history for details.
 */ /*
 * Licensed to Elasticsearch B.V. under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch B.V. licenses this file to you under
 * the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
var hasResizeObserver = typeof window !== 'undefined' && typeof window.ResizeObserver !== 'undefined';
var EuiResizeObserver = /*#__PURE__*/function (_EuiObserver) {
  _inherits(EuiResizeObserver, _EuiObserver);
  var _super = _createSuper(EuiResizeObserver);
  function EuiResizeObserver() {
    var _this;
    _classCallCheck(this, EuiResizeObserver);
    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }
    _this = _super.call.apply(_super, [this].concat(args));
    _defineProperty(_assertThisInitialized(_this), "name", 'EuiResizeObserver');
    _defineProperty(_assertThisInitialized(_this), "state", {
      height: 0,
      width: 0
    });
    _defineProperty(_assertThisInitialized(_this), "onResize", function () {
      // `entry.contentRect` provides incomplete `height` and `width` data.
      // Use `getBoundingClientRect` to account for padding and border.
      // https://developer.mozilla.org/en-US/docs/Web/API/DOMRectReadOnly
      if (!_this.childNode) return;
      var _this$childNode$getBo = _this.childNode.getBoundingClientRect(),
        height = _this$childNode$getBo.height,
        width = _this$childNode$getBo.width; // Check for actual resize event
      if (_this.state.height === height && _this.state.width === width) {
        return;
      }
      _this.props.onResize({
        height: height,
        width: width
      });
      _this.setState({
        height: height,
        width: width
      });
    });
    _defineProperty(_assertThisInitialized(_this), "beginObserve", function () {
      // The superclass checks that childNode is not null before invoking
      // beginObserve()
      var childNode = _this.childNode;
      _this.observer = makeResizeObserver(childNode, _this.onResize);
    });
    return _this;
  }
  return EuiResizeObserver;
}(_observer.EuiObserver);
exports.EuiResizeObserver = EuiResizeObserver;
var makeResizeObserver = function makeResizeObserver(node, callback) {
  var observer;
  if (hasResizeObserver) {
    observer = new window.ResizeObserver(callback);
    observer.observe(node);
  }
  return observer;
};
var useResizeObserver = function useResizeObserver(container, dimension) {
  var _useState = (0, _react.useState)({
      width: 0,
      height: 0
    }),
    _useState2 = _slicedToArray(_useState, 2),
    size = _useState2[0],
    _setSize = _useState2[1]; // _currentDimensions and _setSize are used to only store the
  // new state (and trigger a re-render) when the new dimensions actually differ
  var _currentDimensions = (0, _react.useRef)(size);
  var setSize = (0, _react.useCallback)(function (dimensions) {
    var doesWidthMatter = dimension !== 'height';
    var doesHeightMatter = dimension !== 'width';
    if (doesWidthMatter && _currentDimensions.current.width !== dimensions.width || doesHeightMatter && _currentDimensions.current.height !== dimensions.height) {
      _currentDimensions.current = dimensions;
      _setSize(dimensions);
    }
  }, [dimension]);
  (0, _react.useEffect)(function () {
    if (container != null) {
      // ResizeObserver's first call to the observation callback is scheduled in the future
      // so find the container's initial dimensions now
      var boundingRect = container.getBoundingClientRect();
      setSize({
        width: boundingRect.width,
        height: boundingRect.height
      });
      var observer = makeResizeObserver(container, function () {
        // `entry.contentRect` provides incomplete `height` and `width` data.
        // Use `getBoundingClientRect` to account for padding and border.
        // https://developer.mozilla.org/en-US/docs/Web/API/DOMRectReadOnly
        var _container$getBoundin = container.getBoundingClientRect(),
          height = _container$getBoundin.height,
          width = _container$getBoundin.width;
        setSize({
          width: width,
          height: height
        });
      });
      return function () {
        return observer && observer.disconnect();
      };
    } else {
      setSize({
        width: 0,
        height: 0
      });
    }
  }, [container, setSize]);
  return size;
};
exports.useResizeObserver = useResizeObserver;