raxjs / appear-polyfill Goto Github PK

//修改后
// appear-polyfill
// createIntersectionObserver
const myOptions = {
  rootMargin: '0px 0px 300px 0px',//视窗范围影响参数
};

export function setupAppear(win,options) {
  console.log('myappearmyappearmyappear')
  if (!win) {
    if (typeof window !== 'undefined') {
      win = window;
    } else {
      return;
    }
  }
  createIntersectionObserver(options);
  return injectEventListenerHook([], win.Node);
}

const defaultOptions = {
  root: null,
  rootMargin: '0px',//视窗范围影响参数
  threshold: generateThreshold(10)
};

export function createIntersectionObserver(options = defaultOptions) {
  options={...defaultOptions,...options}
  intersectionObserver = new IntersectionObserver(handleIntersect, options);
}