Vue翻页组件

前端翻页组件

/*
*翻页计算规律：
*开始：(当前页码-1) * 每页显示的条数
*结束：当前页码 * 每页显示的条数
*/

<template>
  <nav>
    <ul class="pagination">
        <li class='totalPage'>共{{totalNum}}页</li>
        <li :class="{'disabled':current == 1}"><a class="arrow" href="javascript:;" @click="setCurrent(current - 1)"> < </a></li>
        <!-- <li :class="{'disabled': current == 1}"><a href="javascript:;" @click="setCurrent(1)"> 首页 </a></li> -->
        <li v-for="(p,i) in grouplist" :key="i" :class="{'active':current == p.val}"><a href="javascript:;" @click="setCurrent(p.val)"> {{ p.text }} </a></li>
        <!-- <li :class="{'disabled': current == page}"><a href="javascript:;" @click="setCurrent(page)"> 尾页 </a></li> -->
        <li :class="{'disabled': current == page}"><a class="arrow" href="javascript:;" @click="setCurrent(current + 1)"> ></a></li>
    </ul>
  </nav>
</template>

<script type="es6">
  export default{
    data(){
      return {
        current: this.currentPage
      }
    },
    props: {
      total: {// 数据总条数
        type: Number,
        default: 0
      },
      totalNum:{
          type:Number,
          default:1
      },
      display: {// 每页显示条数
        type: Number,
        default: 1
      },
      currentPage: {// 当前页码
        type: Number,
        default: 1
      },
      pagegroup: {// 分页条数
        type: Number,
        default: 1,
        coerce: function (v) {
          v = v > 0 ? v : 5;
          return v % 2 === 1 ? v : v + 1;
        }
      }
    },
    computed: {
      page: function () { // 总页数
        return Math.ceil(this.total / this.display);
      },
      grouplist: function () { // 获取分页页码
        var len = this.page, temp = [], list = [], count = Math.floor(this.pagegroup / 2), center = this.current;
        if (len <= this.pagegroup) {
          while (len--) {
            temp.push({text: this.page - len, val: this.page - len});
          };
          return temp;
        }
        while (len--) {
          temp.push(this.page - len);
        };
        var idx = temp.indexOf(center);
        (idx < count) && ( center = center + count - idx);
        (this.current > this.page - count) && ( center = this.page - count);
        temp = temp.splice(center - count - 1, this.pagegroup);
        do {
          var t = temp.shift();
          list.push({
            text: t,
            val: t
          });
        } while (temp.length);
        if (this.page > this.pagegroup) {
          (this.current > count + 1) && list.unshift({text: '...', val: list[0].val - 1});
          (this.current < this.page - count) && list.push({text: '...', val: list[list.length - 1].val + 1});
        }
        return list;
      }
    },
    methods: {
      setCurrent: function (idx) {
        console.log(44)
        if (this.current != idx && idx > 0 && idx < this.page + 1) {
          this.current = idx;
          this.$emit('pagechange', this.current);
        }
      }
    }
  }
</script>

<style lang="less">
  .pagination {
    overflow: hidden;
    display: table;
    padding-left: 0;
    margin: 0 auto;
    /*width: 100%;*/
    li {
      list-style: none;
        float: left;
        border-radius: 5px;
        min-width: 20px;
        height: 30px;
        line-height: 30px;
        margin: 3px 5px;
        border:none;
        color: #666;
        &:hover {
            .arrow{
              border: 1px solid #ccc;
              color: #999;
            }
        }
        a {
            display: inline-block;
            box-sizing: border-box;
            text-align: center;
            font-size: 12px;
            border-radius: 5px;
            width: 100%;
            height: 20px;
            line-height: 20px;
            text-decoration: none;
            color: #999;
            border: 1px solid #ccc;
        }
        &.arrow{
          border: 1px solid #ccc;
          color: #999;
        }
        &:hover{
          color: #999;
        }
        &.totalPage{
          border:none;
          background: #fff;
          color: #333;
        }
    }
    &
    .active {
        a {
            color: #fff;
            background-color: #096DDD;
            border: none;
        }
    }
  }
</style>

使用示例：

<template>
  <div class="hello">
    <div v-for="(v,i) in list" :key=i>
      {{v}}
    </div>
    <div id="dd"></div>
    <pagin-taion :total='total' :totalNum='totalNum' :display='display' :pagegroup='pagegroup' @pagechange='setgal'></pagin-taion>
  </div>
</template>

<script>
import paginTaion from '@/gg/paginTaion';

export default {
  name: 'HelloWorld',
  data () {
    return {
      total:null, // 总数
      totalNum:null, // 总的分页数
      display:2, // 每页显示的条数
      pagegroup:3,// 页码展示的数量(序号数量)
      currentPage:1, //当前页码
      list:[], // 用于展示的数据
      pageData:['1','2','3','4','5','6','7','8','9','10','11','12','13','14','16','17','18','19','20'] // 全部的数据
    }
  },
  created(){
    this.setgal(1)
  },
  components:{
    paginTaion,
  },
  methods:{
    setgal(page){
      //this.initHtmls(page);
      this.currentPage = page;
      this.total = this.pageData.length;
      this.totalNum = Math.ceil(this.total/this.display);
      // 获取当前页,然后从数组pageData中去取数据,然后更新list中的数据
      this.list = this.pageData.slice((page-1) * this.display, page * this.display);
    }
  }
}
</script>

<style scoped>
h1, h2 {
  font-weight: normal;
}
ul {
  list-style-type: none;
  padding: 0;
}
li {
  display: inline-block;
  margin: 0 10px;
}
a {
  color: #42b983;
}
</style>