vueelementui侧边栏（Vue Element UI自定义描述列表组件）

<template>
  <li class="desc" :style="{margin}">
    <!-- 标题 -->
    <h1 v-if="title" class="desc-title" v-html="title"></h1>
    <el-row class="desc-row">
      <slot/>
    </el-row>
  </li>
</template>

<script>
export default {
  name: 'EDesc',
  // 通过provide提供给子组件
  provide () {
    return {
      labelWidth: this.labelWidth,
      column: this.column,
      size: this.size
    }
  },
  props: {
    // 数据源，监听数据重绘
    data: {
      type: Object,
      required: true,
      default () {
        return {}
      }
    },
    // 标题
    title: {
      type: String,
      default: ''
    },
    // 边距
    margin: {
      type: String,
      default: '0'
    },
    // label宽度
    labelWidth: {
      type: String,
      default: '120px'
    },
    column: {
      // 每行显示的项目个数
      type: [Number, String],
      default: 3
    },
    size: {
      // 大小
      type: String,
      default: ''
    }
  },
  watch: {
    data: {
      handler () {
        this.$nextTick(() => {
          // 筛选出子组件e-desc-item
          const dataSource = this.$slots.default
          const dataList = []
          dataSource.forEach(item => {
            if (item.componentOptions && item.componentOptions.tag === 'e-desc-item') {
              dataList.push(item.componentInstance)
            }
          })
          // 剩余span
          let leftSpan = this.column
          const len = dataList.length
          dataList.forEach((item, index) => {
            // 处理column与span之间的关系
            // 剩余的列数小于设置的span数
            const hasLeft = leftSpan <= (item.span || 1)
            // 当前列的下一列大于了剩余span
            const nextColumnSpan = (index < (len - 1)) && (dataList[index + 1].span >= leftSpan)
            // 是最后一行的最后一列
            const isLast = index === (len - 1)
            if (hasLeft || nextColumnSpan || isLast) {
            // 满足以上条件，需要自动补全span，避免最后一列出现残缺的情况
              item.selfSpan = leftSpan
              leftSpan = this.column
            } else {
              leftSpan -= item.span || 1
            }
          })
        })
      },
      deep: true,
      immediate: true
    }
  }
}
</script>

<style scoped lang="scss">
  .desc{
    .desc-title {
      margin-bottom: 10px;
      color: #333;
      font-weight: 700;
      font-size: 16px;
      line-height: 1.5715;
    }
    .desc-row{
      display: flex;
      flex-wrap: wrap;
      border-radius: 2px;
      border: 1px solid #EBEEF5;
      border-bottom: 0;
      border-right: 0;
      width: 100%;
    }
  }
</style>

<template>
  <el-col :span="computedSpan" class="desc-item">
    <li class="desc-item-content" :class="size">
      <label class="desc-item-label" :style="{width: labelWidth}" v-html="label"></label>
      <li class="desc-item-value" v-if="$slots">
        <!-- 纯文本 -->
        <slot v-if="$slots.default && $slots.default[0].text"/>
        <!-- HTML -->
        <slot name="content" v-else-if="$slots.content"/>
        <span v-else>暂无数据</span>
      </li>
    </li>
  </el-col>
</template>

<script>
export default {
  name: 'EDescItem',
  inject: ['labelWidth', 'column', 'size'],
  props: {
    span: {
      type: [Number, String],
      required: false,
      default: 0
    },
    label: {
      type: String,
      required: false,
      default: ''
    }
  },
  data () {
    return {
      // 子组件自己的span
      selfSpan: 0
    }
  },
  computed: {
    computedSpan () {
      // 子组件自己的span，用于父组件计算修改span
      if (this.selfSpan) {
        return 24 / this.column * this.selfSpan
      } else if (this.span) {
      // props传递的span
        return 24 / this.column * this.span
      } else {
      // 未传递span时，取column
        return 24 / this.column
      }
    }
  }
}
</script>

<style scoped lang="scss">
  .desc-item {
    border-right: 1px solid #EBEEF5;
    border-bottom: 1px solid #EBEEF5;
    .desc-item-content {
      display: flex;
      justify-content: flex-start;
      align-items: center;
      color: rgba(0,0,0,.65);
      font-size: 14px;
      line-height: 1.5;
      width: 100%;
      background-color: #fafafa;
      height: 100%;
      .desc-item-label{
        border-right: 1px solid #EBEEF5;
        display: inline-block;
        padding: 12px 16px;
        flex-grow: 0;
        flex-shrink: 0;
        color: rgba(0, 0, 0, 0.6);
        font-weight: 400;
        font-size: 14px;
        line-height: 1.5;
        height: 100%;
        display: flex;
        align-items: center;
      }
      .desc-item-value{
        background: #fff;
        padding: 12px 16px;
        flex-grow: 1;
        overflow: hidden;
        word-break: break-all;
        height: 100%;
        display: flex;
        align-items: center;
        color: #444;
        span{
          color: #aaa;
        }
      }
      &.small {
        .desc-item-label,
        .desc-item-value {
          padding: 10px 14px;
        }
      }
    }
  }
</style>

<template>
  <e-desc :data='info' margin='0 12px' label-width='100px'>
    <e-desc-item label="姓名">{{info.name}}</e-desc-item>
    <e-desc-item label="年龄">{{ info.age }}岁</e-desc-item>
    <e-desc-item label="性别">{{ info.sex }}</e-desc-item>
    <e-desc-item label="学校">{{ info.school }}</e-desc-item>
    <e-desc-item label="专业">{{ info.major }}</e-desc-item>
    <e-desc-item label="爱好">{{ info.hobby }}</e-desc-item>
    <e-desc-item label="手机号">{{ info.phone }}</e-desc-item>
    <e-desc-item label="微信">{{ info.wx }}</e-desc-item>
    <e-desc-item label="QQ">{{ info.qq }}</e-desc-item>
    <e-desc-item label="住址">{{ info.address }}</e-desc-item>
    <e-desc-item label="自我描述" :span='2'>{{ info.intro }}</e-desc-item>
    <e-desc-item label="操作" :span='3'>
      <template slot="content">
        <el-button size="small" type="primary">修改</el-button>
        <el-button size="small" type="danger">删除</el-button>
      </template>
    </e-desc-item>
  </e-desc>
</template>

<script>
import EDesc from './e-desc'
import EDescItem from './e-desc-item'
export default {
  components: {
    EDesc, EDescItem
  },
  data () {
    return {
      info: {
        name: 'Jerry',
        age: 26,
        sex: '男',
        school: '四川大学',
        major: '码农专业',
        address: '四川省成都市',
        hobby: '搬砖、前端、赚钱',
        phone: 18888888888,
        wx: 'Nice2cu_Hu',
        qq: 332983810,
        intro: '我是一个粉刷匠，粉刷本领强。我要把那新房子，刷得更漂亮。刷了房顶又刷墙，刷子飞舞忙。哎呀我的小鼻子，变呀变了样。我是一个粉刷匠，粉刷本领强。我要把那新房子，刷得更漂亮。刷了房顶又刷墙，刷子飞舞忙。哎呀我的小鼻子，变呀变了样。'
      }
    }
  }
}
</script>