lis8.0-vue3/src/components/SelectTable/index.vue

<!--
 * SelectTable 下拉表格组件
 * @author: w
 * @since: 2025-9-28
 * SelectTable.vue
 *
 * 属性(带有[Required]为必填属性)
 * data[Required]: 双向绑定数据
 * fields[Required]: 表格列对象
 * tableData[Required]: 表格数据对象
 * value: 双向绑定数据的值(为空时data属性为表格当前行数据对象)
 * label: 选择框显示的文本内容(为空时分别查看value和objKey是否为空,若value和objKey都有值,则value优先级大于objKey)
 * objKey: 对象key(绑定值的唯一标识，绑定值为对象时必填)
 * placeholder: 选择框占位文本
 * size: 组件大小
 * border: 表格是否带有边框
-->
<template>
  <div>
    <el-select ref="selectTable" v-model="selectShowValue" :placeholder="props.placeholder" :size="props.size"
      :style="{ width: props.width }" @visible-change="visibleChange" @clear="clearHandle" clearable>
      <template #empty>
        <div class="select-table-dropdown">
          <div style="text-align: left;">
            <el-input v-model="searchKey" ref="searchInput" size="small" placeholder="快速搜索(支持简拼)" class="mb10" clearable
              @clear="filterDataHandle" @input="filterDataHandle" />
          </div>
          <!-- 数据为空时显示空状态提示 -->
          <el-empty v-if="filterData.length === 0" description="没有匹配的数据" :image-size="100" />

          <!-- 数据存在时显示表格 -->
          <el-table ref="tableRef" v-else :data="filterData" :highlight-current-row="props.isHighlight"
            style="width: 100%" :border="props.border" @row-click="handleRowChange" max-height="350px">
            <el-table-column v-for="field in props.fields" :prop="field.prop" :label="field.label" :width="field.width"
              :show-overflow-tooltip="field.showTooltip" align="center" />
          </el-table>
        </div>
      </template>
    </el-select>
  </div>
</template>

<script setup lang="ts">
import { reactive, ref, onMounted, watch, nextTick } from "vue";
// @ts-ignore
import { getFirstLetter } from '@/api/pinyin.js';
import { ElEmpty } from 'element-plus';

interface Field {
  prop: string;
  label: string;
  width: number;
  showTooltip?: boolean;
  enablePinyinSearch?: boolean; //是否参与拼音搜索
}

interface Props {
  data: any;
  fields: Field[];
  tableData: object[];
  label?: string;
  value?: string;
  objKey?: string;
  isHighlight?: boolean;
  size?: string;
  placeholder?: string;
  border?: boolean;
  width?: string | number;
}
const props = withDefaults(defineProps<Props>(), {
  placeholder: "请选择",
  size: "default",
  isHighlight: true,
  value: undefined,
  label: undefined,
  border: false,
  width: "100%",
});

interface Emits {
  (e: "update:data", val: any): void;
  (e: "getDataValue", val: any): void;
}
const emits = defineEmits<Emits>();
const searchKey = ref('');
const tableRef = ref();
const selectTable = ref();
const selectShowValue = ref('');
const searchInput = ref();
const filterData = ref<{ [key: string]: any; pinyinMap: Record<string, string> }[]>([]);
// 存储预处理后的带拼音数据
const processedTableData = ref<{ [key: string]: any; pinyinMap: Record<string, string> }[]>([]);

// 预处理数据：生成拼音信息
const processTableData = (data: object[]) => {
  return data.map((item: any) => {
    const pinyinMap: Record<string, string> = {};
    // 处理label字段拼音
    if (item[props.label!]) {
      pinyinMap.label = getFirstLetter(item[props.label!]).toLowerCase();
    }
    // 处理value字段拼音
    if (props.value && item[props.value]) {
      pinyinMap.value = getFirstLetter(String(item[props.value])).toLowerCase();
    }
    // 处理其他指定字段拼音
    props.fields.forEach(field => {
      if (field.enablePinyinSearch && item[field.prop]) {
        pinyinMap[field.prop] = getFirstLetter(item[field.prop]).toLowerCase();
      }
    });
    return { ...item, pinyinMap };
  });
};

// 隐藏显示处理
const visibleChange = (val: any) => {
  searchKey.value = '';
  if (val) {
    nextTick(() => {
      searchInput.value.focus();
    });
  }
  filterDataHandle()
};

// 初始化数据
onMounted(() => {
  processedTableData.value = processTableData(props.tableData);
  filterData.value = [...processedTableData.value];
});

// 监听表格数据变化，重新处理
watch(() => props.tableData, (newVal) => {
  processedTableData.value = processTableData(newVal);
  // 数据回显
  handleDataEcho();
}, { deep: true });

// 数据回显处理
const handleDataEcho = () => {
  if (props.data === null || props.data === undefined) return;
  // 查找匹配的行数据
  const row: any = props.tableData.find((item: any) => props.objKey && item[props.objKey] === props.data)
  selectShowValue.value = row ? (props.label ? row[props.label] : (props.value ? row[props.value] : '')) : '';
};



// 搜索过滤逻辑
const filterDataHandle = () => {
  const key = searchKey.value.trim().toLowerCase();

  if (!key) {
    // 空搜索时显示全部预处理数据
    filterData.value = [...processedTableData.value];
    return;
  }

  filterData.value = processedTableData.value.filter((item: any) => {
    // 1. 原文本匹配
    const matchLabel = props.label && item[props.label]?.toString().toLowerCase().includes(key);
    const matchValue = props.value && item[props.value]?.toString().toLowerCase().includes(key);

    // 2. 拼音匹配
    const matchLabelPinyin = props.label && item.pinyinMap.label?.includes(key);
    const matchValuePinyin = props.value && item.pinyinMap.value?.includes(key);

    // 3. 其他字段匹配
    let matchOtherField = false;
    props.fields.forEach(field => {
      if (field.enablePinyinSearch) {
        const textMatch = item[field.prop]?.toString().toLowerCase().includes(key);
        const pinyinMatch = item.pinyinMap[field.prop]?.includes(key);
        if (textMatch || pinyinMatch) {
          matchOtherField = true;
        }
      }
    });

    return matchLabel || matchValue || matchLabelPinyin || matchValuePinyin || matchOtherField;
  });
};

const handleRowChange = (val: any) => {
  setLabel(val);
  emits("update:data", props.value ? val[props.value] : val);
};

const setLabel = (val: any) => {
  if (props.label) {
    selectShowValue.value = val[props.label];
  } else if (props.value) {
    selectShowValue.value = val[props.value];
  }
  if (props.objKey) {
    emits('getDataValue', val[props.objKey]);
  }
  selectTable.value.blur();
};
// 清空值
const clearHandle = () => {
  selectShowValue.value = '';
  emits("update:data", null);
  emits('getDataValue', null);
};
</script>

<style scoped>
.select-table-dropdown {
  padding: 8px;

}

:deep(.el-table .el-table__cell) {
  padding: 0;
}
</style>