移动端滚动穿透问题

jsCopy
<template>
 <div @click="handleHambergerClick"></div>
</template>
<script>
export default {
 name: 'BaseHeaderMobile',
 data() {
  return {
   isHeaderVisible: false,
  };
 },
 methods: {
  handleHambergerClick() {
   // hack: 滑动穿透问题
   if (!this.isHeaderVisible) {
    this.lockBody();
   } else {
    this.resetBody();
   }

   this.isHeaderVisible = !this.isHeaderVisible;
  },
  lockBody() {
   const { body } = document;
   const scrollTop = document.body.scrollTop || document.documentElement.scrollTop;
   body.style.position = 'fixed';
   body.style.width = '100%';
   body.style.top = `-${scrollTop}px`;
  },
  resetBody() {
   const { body } = document;
   const { top } = body.style;
   body.style.position = '';
   body.style.width = '';
   body.style.top = '';
   document.body.scrollTop = -parseInt(top, 10);
   document.documentElement.scrollTop = -parseInt(top, 10);
  },
 },
};
</script>