<template>
    <div>
      <Header></Header>
      <div class="location">
        <div class="location-content">
          您的位置：<router-link to="/">首页</router-link> > 展览展示
        </div>
      </div>
      <div class="exhibition">
        <div v-if="!isLoading">
          <ul v-if="hasData">
            <li v-for="(list,idx) in exhibition" :key="idx" @click="goDetail(list.templateRecordUrl)">
              <div class="exhibition-img">
                <img :src="url + 'news/route/file/downloadfile/false/' + list.newsContentCoverList" alt="">
              </div>
              <div class="exhibition-info">
                <h1>{{list.newsContentTitle}}</h1>
                <p>作者：{{list.newsContentAuthor}}</p>
              </div>
            </li>
          </ul>
          <div class="no-data" v-else>
            <img src="@/assets/images/no-data.png" alt="">
          </div>
        </div>
      </div>
      <div class="pager" v-if="hasData">
        <span @click="paging(1)">首页</span>
        <span @click="paging(page.page - 1)" v-if="page.page > 1">上一页</span>
        <ul v-if="page.totalPage > 0 && page.totalPage <= 5">
          <li v-for="cpage in page.totalPage" :class="{'active': page.page == cpage}" :key="cpage" @click="paging(cpage)">
            {{cpage}}
          </li>
        </ul>
        <ul v-if="page.totalPage > 5">
          <li v-if="page.page < 3" v-for="cpage in 5" :class="{'active': page.page == cpage}" :key="cpage" @click="paging(cpage)">
            {{cpage}}
          </li>
          <li v-if="page.page > page.totalPage - 2" v-for="cpage in 5" :class="{'active': page.page == (page.totalPage - 5 + cpage)}" :key="cpage" @click="paging(cpage)">
            {{page.totalPage - 5 + cpage}}
          </li>
          <li v-if="page.page >= 3 && page.page <= page.totalPage - 2" v-for="cpage in 5" :class="{'active': page.page == (page.page - (3 - cpage))}" :key="cpage" @click="paging(cpage)">
            {{page.page - (3 - cpage)}}
          </li>
        </ul>
        <span @click="paging(page.page + 1)" v-if="page.page < page.totalPage">下一页</span>
        <span @click="paging(page.totalPage)">尾页</span>
        <input type="text" v-model="changePage" v-if="showJumpBtn">
        <i v-if="showJumpBtn">/{{page.totalPage}}页</i>
        <button v-if="showJumpBtn" @click="doJumpPage">跳转</button>
      </div>
      <div class="loading" v-if="isLoading">
        <img src="@/assets/images/loading.gif" alt="">
      </div>
      <Footer></Footer>
    </div>
</template>

<script>
import Header from '@/common/components/Header'
import Footer from '@/common/components/Footer'
import common from '@/common/components/common.js'
import axios from 'axios'
export default {
  name: 'Exhibition',
  components: {
    Header,
    Footer
  },
  data () {
    return {
      changePage: 1,
      exhibition: [],
      page: {
        page: 1,
        rows: 8,
        totalPage: 1,
        newsDirectoriesId: 'f1d5d313-f728-4dda-9843-1116d97e17b0'
      },
      url: common.url,
      isLoading: false
    }
  },
  computed: {
    showJumpBtn () {
      return this.page.totalPage > 1
    },
    hasData () {
      return this.exhibition.length > 0
    }
  },
  methods: {
    goDetail: function (url) {
      window.location.href = this.url + url
    },
    doJumpPage: function () {
      this.page.page = this.changePage
      this.getList()
    },
    paging: function (page) {
      this.page.page = page
      this.getList()
    },
    getList: function () {
      var self = this
      self.isLoading = true
      axios.get(self.url + 'news/app/newscontent/listpagenewscontentrelease', {
        params: self.page
      }).then(function (res) {
        for (var i = 0; i < res.data.rows.length; i++) {
          res.data.rows[i].newsContentCoverList = res.data.rows[i].newsContentCoverList[0].contentCoverId
        }
        self.isLoading = false
        self.exhibition = res.data.rows
        self.page.page = res.data.page
        self.page.totalPage = Math.ceil(res.data.total / self.page.rows)
      })
    }
  },
  mounted: function () {
    this.getList()
  }
}
</script>

<style lang="stylus" rel="stylesheet/stylus" scoped>
@import "~styles/public.styl"
.no-data
  padding 80px 0
  text-align center
  img
    width 200px
.loading
  position fixed
  top 50%
  left 50%
  transform translate(-50%, -50%)
  background rgba(255,255,255,0.6)
  padding 30px
  border-radius 10px
  box-shadow 0 0 17px #DEDEDE
.location
  background #e5e5e5
  line-height 30px
  .location-content
    width 1200px
    margin 0 auto
    font-size 14px
    color #565656
.select
  padding 10px 0 0
  background #f0f0f0
  overflow hidden
  .select-container
    width 1200px
    margin 0 auto
    .select-line
      margin-bottom 10px
      font-size 14px
      span
        color #565656
      button
        width 80px
        height 30px
        padding 0 5px
        box-sizing border-box
        border none
        background none
        outline none
        color #565656
        border-radius 4px
        cursor pointer
        white-space nowrap
        overflow hidden
        text-overflow: ellipsis
        &.active
          color #fff
          background $main-color
.exhibition
  width 1200px
  min-height 400px
  margin 20px auto
  ul
    overflow hidden
    li
      width 280px
      box-shadow 0px 0px 10px 0px rgba(176,176,176,0.3)
      box-sizing border-box
      float left
      margin-right 25px
      margin-bottom 25px
      cursor pointer
      &:nth-child(4n)
        margin-right 0
      &:hover
        box-shadow 0px 0px 20px 0px rgba(176,176,176,0.9)
      .exhibition-img
        width 100%
        height 185px
        img
          width 100%
          height 100%
      .exhibition-info
        padding 10px 20px
        h1
          text-align center
          font-size 18px
          color #565656
          font-weight normal
          white-space nowrap
          overflow hidden
          text-overflow: ellipsis
          margin-bottom 5px
        p
          font-size 14px
          color #565656
          text-align center
          white-space nowrap
          overflow hidden
          text-overflow ellipsis
        .exhibition-info-bottom
          span
            font-size 14px
            color #a8a8a8
            &.view
              float right
.pager
  width 1200px
  margin 20px auto
  text-align center
  font-size 0
  span
    display inline-block
    padding 0 15px
    line-height 25px
    color #676767
    border 1px solid #d2d2d2
    font-size 14px
    margin 0 5px
    vertical-align middle
    cursor pointer
  ul
    display inline-block
    overflow hidden
    vertical-align middle
    li
      width 45px
      line-height 25px
      float left
      margin-right 10px
      border 1px solid #d2d2d2
      cursor pointer
      text-align center
      font-size 14px
      color #676767
      &.active
        background $main-color
        color #fff
        border 1px solid $main-color
      &:last-child
        margin 0
  input
    width 50px
    height 25px
    border 1px solid #d2d2d2
    text-align center
    vertical-align middle
  i
    font-style normal
    color #676767
    font-size 14px
    line-height 25px
    display inline-block
    vertical-align middle
    margin 0 5px
  button
    border none
    outline none
    background #4792C2
    width 50px
    height 25px
    vertical-align middle
    color #fff
    font-size 14px
</style>
