<template>
<div class="icons">
  <swiper>
    <swiper-slide v-for="(page, index) of pages" :key="index" :options="swiperOption">
      <div class="icon" v-for="item of page" :key="item.id">
        <div class="icon-img">
          <img class="icon-img-content" :src="item.imgUrl" />
        </div>
        <div class="icon-desc">{{item.desc}}</div>
      </div>
    </swiper-slide>
    <div class="swiper-pagination" slot="pagination"></div>
  </swiper>
</div>
</template>

<script>
export default {
  name: 'homeIcons',
  data () {
    return {
      swiperOption: {
        loop: true,
        pagination: '.swiper-pagination',
        paginationClickable: true, // 可点击分页器小点
        autoplay: 3000, // 自动切换间隔 3s
        autoplayDisableOnInteraction: false // 鼠标触碰后，不会停止自动切换
      },
      iconsList: [{
        id: '001',
        imgUrl: 'http://mp-piao-admincp.qunarzz.com/mp_piao_admin_mp_piao_admin/admin/20209/158387fe5376294f3776d01358d6b73b.png',
        desc: '景点门票1'
      }, {
        id: '002',
        imgUrl: 'http://mp-piao-admincp.qunarzz.com/mp_piao_admin_mp_piao_admin/admin/20209/158387fe5376294f3776d01358d6b73b.png',
        desc: '景点门票2'
      }, {
        id: '003',
        imgUrl: 'http://mp-piao-admincp.qunarzz.com/mp_piao_admin_mp_piao_admin/admin/20209/158387fe5376294f3776d01358d6b73b.png',
        desc: '景点门票3'
      }, {
        id: '004',
        imgUrl: 'http://mp-piao-admincp.qunarzz.com/mp_piao_admin_mp_piao_admin/admin/20209/158387fe5376294f3776d01358d6b73b.png',
        desc: '景点门票4'
      }, {
        id: '005',
        imgUrl: 'http://mp-piao-admincp.qunarzz.com/mp_piao_admin_mp_piao_admin/admin/20209/158387fe5376294f3776d01358d6b73b.png',
        desc: '景点门票5'
      }, {
        id: '006',
        imgUrl: 'http://mp-piao-admincp.qunarzz.com/mp_piao_admin_mp_piao_admin/admin/20209/158387fe5376294f3776d01358d6b73b.png',
        desc: '景点门票6'
      }, {
        id: '007',
        imgUrl: 'http://mp-piao-admincp.qunarzz.com/mp_piao_admin_mp_piao_admin/admin/20209/158387fe5376294f3776d01358d6b73b.png',
        desc: '景点门票7'
      }, {
        id: '008',
        imgUrl: 'http://mp-piao-admincp.qunarzz.com/mp_piao_admin_mp_piao_admin/admin/20209/158387fe5376294f3776d01358d6b73b.png',
        desc: '景点门票8'
      }, {
        id: '009',
        imgUrl: 'http://mp-piao-admincp.qunarzz.com/mp_piao_admin_mp_piao_admin/admin/20209/158387fe5376294f3776d01358d6b73b.png',
        desc: '景点门票9'
      }, {
        id: '010',
        imgUrl: 'http://mp-piao-admincp.qunarzz.com/mp_piao_admin_mp_piao_admin/admin/20209/158387fe5376294f3776d01358d6b73b.png',
        desc: '景点门票10'
      }]
    }
  },
  computed: {// 将iconsList数组变为 二维数组pages
    pages () {
      const pages = []
      this.iconsList.forEach((elem, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(elem)
      })
      return pages
    }
  }
}
</script>

<style lang="stylus" scoped>
.icons >>> .swiper-container
  width: 100%
  height: 0
  padding-bottom: 50%
.icons >>> .swiper-slide
  display: flex
  flex-flow: row wrap
.icons
  overflow: hidden
  width: 100%
  height: 0
  padding-bottom: 50%
  display: flex
  flex-flow: row wrap
  background: #eeeeee
  .icon
    overflow: hidden
    width: 25%
    height: 0
    padding-bottom: 25%
    position: relative
    .icon-img
      position: absolute
      left: 0
      top: 0
      bottom: .44rem
      box-sizing: border-box
      padding: .1rem
      width: 100%
      overflow: hidden
      .icon-img-content
        height: 100%
        margin: 0 auto
        display: block
    .icon-desc
      width: 100%
      height: .44rem
      position: absolute
      left: 0
      bottom: 0
      text-align: center
</style>