MIXINS

elevator.js

import Velocity from ‘velocity-animate‘;
import {on, off, isInContainer} from ‘element-ui/src/utils/dom‘;
import _ from ‘lodash‘

export default {
    computed: {
        rollWrapper: vm => {
            const {rollWrapper} = vm.$refs
            return rollWrapper.$el ? rollWrapper.$el : rollWrapper
        },
        lazyHandler: vm => _.throttle(vm.handleScrolling, 200)
    },
    data() {
        return {
            isScroll: false
        }
    },
    mounted() {
        on(this.rollWrapper, ‘scroll‘, this.lazyHandler)
        this.$once(‘hook:hook:beforeDestroy‘, off.bind(this, this.rollWrapper, ‘scroll‘, this.lazyHandler))
    },
    methods: {
        handleNavChange(v) {
            this.isScroll = true
            const {name} = v
            const {rollWrapper} = this
            const offset = rollWrapper.offsetTop
            const sourceNode = this.$refs[name]
            const target = sourceNode.$el ? sourceNode.$el : sourceNode
            Velocity(target, ‘scroll‘, {
                container: rollWrapper,
                duration: 500,
                offset: -offset,
                complete: () => this.isScroll = false
            })
        },
        handleScrolling() {
            if (this.isScroll) return
            const {nav} = this
            for (let i = 0; i < nav.length; i++) {
                const {name} = nav[i]
                const sourceNode = this.$refs[name]
                if (!sourceNode) continue
                const target = sourceNode.$el ? sourceNode.$el : sourceNode
                if (isInContainer(target, this.rollWrapper)) return this.activeModule = name
            }
        }
    }
}

USE

in components script

import elevator from "@/mixins/elevator";
  mixins: [elevator],
  computed: {
    nav: () => [
      {name: ‘itemBaseInfo‘, label: ‘基础信息‘},
      {name: ‘itemSort‘, label: ‘分类属性‘},
      {name: ‘itemSpec‘, label: ‘SKU&价格‘},
      {name: ‘itemPic‘, label: ‘产品图片‘},
      {name: ‘payAndLimit‘, label: ‘支付&限购‘},
      {name: ‘shipAndDelivery‘, label: ‘运费&发货‘},
      {name: ‘shopOtherConfig‘, label: ‘客服&售后&资质‘}
    ]
  },
  data() {
      return {
                activeModule: ‘itemBaseInfo‘
              }
  }

in components template container

    <div ref="rollWrapper" class="overflow-y">
      <section ref="itemBaseInfo"></section>
      <section ref="itemSort"></section>
      <section ref="itemSpec"></section>
      <section ref="itemPic"></section>
      <section ref="payAndLimit"></section>
      <section ref="shipAndDelivery"></section>
      <section ref="shopOtherConfig"></section>
    </div>

in components template nav

   <el-tabs v-model="activeModule" stretch @tab-click="handleNavChange">
            <el-tab-pane v-for="item in nav" :key="item.name" :label="item.label" :name="item.name"/>
   </el-tabs>

Vue 基于elementUI的电梯导航