press-ui/common/utils/system.js

简单、易用的跨端组件库，兼容 Vue2 和 Vue3，同时支持 uni-app和普通 Vue 项目

import { isNotInUni } from './utils';
import { canIUseGroupSetData, getSystemInfoSync } from './version';

export { nextTick } from '../vue3/adapter';
export { getSystemInfoSync };


export function requestAnimationFrame(cb) {
  return setTimeout(() => {
    cb();
  }, 1000 / 30);
}


export function groupSetData(context, cb) {
  if (canIUseGroupSetData() && context.groupSetData) {
    context.groupSetData(cb);
  } else {
    cb();
  }
}

export function intersectionObserverPloyFill({
  selector,
  callback,
  options,
}) {
  // #ifdef H5
  if (isNotInUni()) {
    const io = new IntersectionObserver(callback, options);
    const target = document.querySelectorAll(selector);
    target.forEach((element) => {
      io.observe(element);
    });
    return true;
  }
  // #endif
  return false;
}