ant-design-vue/es/vc-align/util.js

An enterprise-class UI design language and Vue-based implementation

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _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(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _iterableToArrayLimit(arr, i) { if (typeof Symbol === "undefined" || !(Symbol.iterator in Object(arr))) return; var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

import ResizeObserver from 'resize-observer-polyfill';
import contains from '../vc-util/Dom/contains';
export function buffer(fn, ms) {
  var timer;

  function clear() {
    if (timer) {
      clearTimeout(timer);
      timer = null;
    }
  }

  function bufferFn() {
    clear();
    timer = setTimeout(fn, ms);
  }

  bufferFn.clear = clear;
  return bufferFn;
}
export function isSamePoint(prev, next) {
  if (prev === next) return true;
  if (!prev || !next) return false;

  if ('pageX' in next && 'pageY' in next) {
    return prev.pageX === next.pageX && prev.pageY === next.pageY;
  }

  if ('clientX' in next && 'clientY' in next) {
    return prev.clientX === next.clientX && prev.clientY === next.clientY;
  }

  return false;
}
export function isWindow(obj) {
  return obj && _typeof(obj) === 'object' && obj.window === obj;
}
export function isSimilarValue(val1, val2) {
  var int1 = Math.floor(val1);
  var int2 = Math.floor(val2);
  return Math.abs(int1 - int2) <= 1;
}
export function restoreFocus(activeElement, container) {
  // Focus back if is in the container
  if (activeElement !== document.activeElement && contains(container, activeElement)) {
    activeElement.focus();
  }
}
export function monitorResize(element, callback) {
  var prevWidth = null;
  var prevHeight = null;

  function onResize(_ref) {
    var _ref2 = _slicedToArray(_ref, 1),
        target = _ref2[0].target;

    if (!document.documentElement.contains(target)) return;

    var _target$getBoundingCl = target.getBoundingClientRect(),
        width = _target$getBoundingCl.width,
        height = _target$getBoundingCl.height;

    var fixedWidth = Math.floor(width);
    var fixedHeight = Math.floor(height);

    if (prevWidth !== fixedWidth || prevHeight !== fixedHeight) {
      // https://webkit.org/blog/9997/resizeobserver-in-webkit/
      Promise.resolve().then(function () {
        callback({
          width: fixedWidth,
          height: fixedHeight
        });
      });
    }

    prevWidth = fixedWidth;
    prevHeight = fixedHeight;
  }

  var resizeObserver = new ResizeObserver(onResize);

  if (element) {
    resizeObserver.observe(element);
  }

  return function () {
    resizeObserver.disconnect();
  };
}