qt-public-ui/es/CompatibleAntd3/_util/scrollTo.js

新设计规范下业务组件库

import raf from 'raf';
import getScroll from './getScroll';
import { easeInOutCubic } from './easings';
export default function scrollTo(y, options) {
  if (options === void 0) {
    options = {};
  }
  var _options = options,
    _options$getContainer = _options.getContainer,
    getContainer = _options$getContainer === void 0 ? function () {
      return window;
    } : _options$getContainer,
    callback = _options.callback,
    _options$duration = _options.duration,
    duration = _options$duration === void 0 ? 450 : _options$duration;
  var container = getContainer();
  var scrollTop = getScroll(container, true);
  var startTime = Date.now();
  var frameFunc = function frameFunc() {
    var timestamp = Date.now();
    var time = timestamp - startTime;
    var nextScrollTop = easeInOutCubic(time > duration ? duration : time, scrollTop, y, duration);
    if (container === window) {
      window.scrollTo(window.pageXOffset, nextScrollTop);
    } else {
      container.scrollTop = nextScrollTop;
    }
    if (time < duration) {
      raf(frameFunc);
    } else if (typeof callback === 'function') {
      callback();
    }
  };
  raf(frameFunc);
}