Vue3.x+ElementPlus仿制AcroDesign简洁模式实现分页器组件

2023-02-23 11:14

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开发中难免会遇到宽度很窄的列表需要使用分页器的情况，这时若使用Element Plus组件的分页器会导致分页器内容超出展示的区域，而Element Plus组件中目前没有Acro Design那样小巧的分页器（Arco Design Vue）如下图所示，如果再引入一个新的UI组件库未免导致项目臃肿，所以基于Vue3.x和Element Plus封装了一个即拿即用的”简洁模式“分页器组件以便不时之需

分页器组件代码部分：

<!-- （简洁模式）分页器组件 -->
<template>
  <div class="smallpagination">
    <!-- 总数统计 -->
    <span>{{ '共' + total + '条' }}</span>
    <!-- 翻页 -->
    <div class="smallpagination-pager">
      <!-- 左翻页 -->
      <el-icon @click="pageTurning('down')" :class="curPage <= 1 ? 'forbid-pageturning' : ''">
        <ArrowLeft />
      </el-icon>
      <!-- 页码 -->
      <el-input-number @change="handlePageChange" v-model="pageNum" :min="1" :max="pageTotal" :step-strictly="true"
        :controls="false" />
      <b>{{ '/ ' + pageTotal }}</b>
      <!-- 右翻页 -->
      <el-icon @click="pageTurning('up')" :class="curPage >= pageTotal ? 'forbid-pageturning' : ''">
        <ArrowRight />
      </el-icon>
    </div>
  </div>
</template>

<script setup>
import { useAttrs, computed, ref } from 'vue';
import {
  ArrowLeft,
  ArrowRight
} from '@element-plus/icons-vue';

// 接收父组件参数
const attrs = useAttrs();
// 父组件事件
const em = defineEmits(['handlePageChange']);
// 当前页
const pageNum = ref(1);
// 父组件传递-当前页码
const curPage = computed(() => {
  pageNum.value = attrs.curPage;
  return attrs.curPage;
});
// 父组件传递-总数
const total = computed(() => {
  return attrs.total;
});
// 总页码数
const pageTotal = computed(() => {
  return attrs.total > 0 ? Math.ceil(attrs.total / attrs.pageSize) : 1;
});


const handlePageChange = (e) => {
  if (pageTotal.value <= 1) {
    return;
  }
  em('handlePageChange', e);
};

const pageTurning = (type) => {
  // 向前翻页
  if (type === 'up') {
    if (curPage.value >= pageTotal.value || pageTotal.value <= 1) {
      return;
    }
    em('handlePageChange', pageNum.value + 1);
  }
  // 向后翻页
  else {
    if (pageTotal.value <= 1 || curPage.value <= 1) {
      return;
    }
    em('handlePageChange', pageNum.value - 1);
  }
};
</script>

<style lang="less" scoped>
.smallpagination {
  width: auto;
  height: 100%;
  display: flex;
  align-items: center;

  >span {
    margin-right: 11px;
    font-size: 14px;
    font-weight: 400;
    color: #4E5969;
    line-height: 21px;
  }

  .smallpagination-pager {
    display: flex;
    align-items: center;

    .el-icon {
      width: 30px;
      height: 30px;
      font-size: 14px;
      color: #4E5969;
      cursor: pointer;

      &:hover {
        background: rgb(247, 248, 250);
        color: #0082ff;
      }
    }

    .forbid-pageturning {
      opacity: 0.4;
      cursor: not-allowed;

      &:active {
        color: #4E5969;
        background: rgb(255, 255, 255);
      }
    }

    >b {
      margin: 0 5px;
      font-size: 14px;
      font-weight: 400;
      color: #4E5969;
    }
  }
}
</style>
<style lang="less">
.smallpagination {
  .smallpagination-pager {
    .el-input-number {
      width: 40px;
      margin-left: 5px;

      span {
        display: none;
      }

      .el-input__wrapper {
        padding: 0;
        height: 30px;
        font-size: 14px;
        box-sizing: border-box;
        background: #f2f3f5;
        box-shadow: none !important;
      }
    }
  }
}
</style>

使用简洁模式分页器组件代码如下：

<template>
    <div class="xxx-list">
    	...
        <div class="list-bottom-common-page">
          <SmallPagination :total="total" :curPage="curPage" :pageSize="pageSize" @handlePageChange="handleCurrentChange">
          </SmallPagination>
        </div>
    </div>
</template>

<script setup>
import SmallPagination from '@/components/xxx/SmallPagination.vue';
import { ref } from 'vue';

// 当前页
const curPage = ref(1);
// 每页条数
const pageSize = ref(20);
// 列表总数
const total = ref(0);


const handleCurrentChange = (val) => {
  curPage.value = val;
  ...
};
</script>

最终效果如下：