<template>
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<Dialog v-model="dialogVisible" :appendToBody="true" title="选择商品" width="70%">
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<ContentWrap>
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<el-form
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ref="queryFormRef"
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:inline="true"
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:model="queryParams"
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class="-mb-15px"
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label-width="68px"
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>
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<el-form-item label="商品名称" prop="name">
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<el-input
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v-model="queryParams.name"
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class="!w-240px"
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clearable
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placeholder="请输入商品名称"
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@keyup.enter="handleQuery"
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/>
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</el-form-item>
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<el-form-item label="商品分类" prop="categoryId">
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<el-tree-select
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v-model="queryParams.categoryId"
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:data="categoryTreeList"
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:props="defaultProps"
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check-strictly
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class="!w-240px"
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node-key="id"
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placeholder="请选择商品分类"
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/>
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</el-form-item>
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<el-form-item label="创建时间" prop="createTime">
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<el-date-picker
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v-model="queryParams.createTime"
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:default-time="[new Date('1 00:00:00'), new Date('1 23:59:59')]"
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class="!w-240px"
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end-placeholder="结束日期"
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start-placeholder="开始日期"
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type="daterange"
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value-format="YYYY-MM-DD HH:mm:ss"
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/>
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</el-form-item>
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<el-form-item>
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<el-button @click="handleQuery">
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<Icon class="mr-5px" icon="ep:search" />
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搜索
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</el-button>
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<el-button @click="resetQuery">
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<Icon class="mr-5px" icon="ep:refresh" />
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重置
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</el-button>
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</el-form-item>
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</el-form>
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<el-table v-loading="loading" :data="list" show-overflow-tooltip>
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<!-- 1. 多选模式（不能使用type="selection"，Element会忽略Header插槽） -->
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<el-table-column width="55" v-if="multiple">
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<template #header>
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<el-checkbox
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v-model="isCheckAll"
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:indeterminate="isIndeterminate"
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@change="handleCheckAll"
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/>
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</template>
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<template #default="{ row }">
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<el-checkbox
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v-model="checkedStatus[row.id]"
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@change="(checked: boolean) => handleCheckOne(checked, row, true)"
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/>
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</template>
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</el-table-column>
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<!-- 2. 单选模式 -->
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<el-table-column label="#" width="55" v-else>
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<template #default="{ row }">
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<el-radio :label="row.id" v-model="selectedSpuId" @change="handleSingleSelected(row)">
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<!-- 空格不能省略，是为了让单选框不显示label，如果不指定label不会有选中的效果 -->
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</el-radio>
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</template>
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</el-table-column>
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<el-table-column key="id" align="center" label="商品编号" prop="id" min-width="60" />
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<el-table-column label="商品图" min-width="80">
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<template #default="{ row }">
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<el-image
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:src="row.picUrl"
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class="h-30px w-30px"
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:preview-src-list="[row.picUrl]"
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preview-teleported
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/>
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</template>
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</el-table-column>
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<el-table-column label="商品名称" min-width="200" prop="name" />
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<el-table-column label="商品分类" min-width="100" prop="categoryId">
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<template #default="{ row }">
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<span>{{ categoryList?.find((c) => c.id === row.categoryId)?.name }}</span>
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</template>
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</el-table-column>
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</el-table>
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<!-- 分页 -->
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<Pagination
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v-model:limit="queryParams.pageSize"
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v-model:page="queryParams.pageNo"
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:total="total"
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@pagination="getList"
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/>
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</ContentWrap>
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<template #footer v-if="multiple">
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<el-button type="primary" @click="handleEmitChange">确 定</el-button>
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<el-button @click="dialogVisible = false">取 消</el-button>
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</template>
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</Dialog>
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</template>
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<script lang="ts" setup>
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import { defaultProps, handleTree } from '@/utils/tree'
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import * as ProductCategoryApi from '@/api/mall/product/category'
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import * as ProductSpuApi from '@/api/mall/product/spu'
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import { propTypes } from '@/utils/propTypes'
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import { CHANGE_EVENT } from 'element-plus'
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type Spu = Required<ProductSpuApi.Spu>
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/**
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* 商品表格选择对话框
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* 1. 单选模式：
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* 1.1 点击表格左侧的单选框时，结束选择，并关闭对话框
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* 1.2 再次打开时，保持选中状态
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* 2. 多选模式：
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* 2.1 点击表格左侧的多选框时，记录选中的商品
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* 2.2 切换分页时，保持商品的选中的状态
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* 2.3 点击右下角的确定按钮时，结束选择，关闭对话框
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* 2.4 再次打开时，保持选中状态
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*/
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defineOptions({ name: 'SpuTableSelect' })
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defineProps({
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// 多选模式
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multiple: propTypes.bool.def(false)
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})
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// 列表的总页数
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const total = ref(0)
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// 列表的数据
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const list = ref<Spu[]>([])
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// 列表的加载中
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const loading = ref(false)
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// 弹窗的是否展示
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const dialogVisible = ref(false)
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// 查询参数
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const queryParams = ref({
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pageNo: 1,
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pageSize: 10,
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// 默认获取上架的商品
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tabType: 0,
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name: '',
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categoryId: null,
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createTime: []
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})
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/** 打开弹窗 */
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const open = (spuList?: Spu[]) => {
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// 重置
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checkedSpus.value = []
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checkedStatus.value = {}
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isCheckAll.value = false
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isIndeterminate.value = false
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// 处理已选中
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if (spuList && spuList.length > 0) {
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checkedSpus.value = [...spuList]
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checkedStatus.value = Object.fromEntries(spuList.map((spu) => [spu.id, true]))
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}
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dialogVisible.value = true
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resetQuery()
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}
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// 提供 open 方法，用于打开弹窗
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defineExpose({ open })
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/** 查询列表 */
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const getList = async () => {
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loading.value = true
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try {
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const data = await ProductSpuApi.getSpuPage(queryParams.value)
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list.value = data.list
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total.value = data.total
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// checkbox绑定undefined会有问题，需要给一个bool值
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list.value.forEach(
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(spu) => (checkedStatus.value[spu.id] = checkedStatus.value[spu.id] || false)
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)
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// 计算全选框状态
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calculateIsCheckAll()
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} finally {
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loading.value = false
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}
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}
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/** 搜索按钮操作 */
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const handleQuery = () => {
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queryParams.value.pageNo = 1
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getList()
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}
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/** 重置按钮操作 */
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const resetQuery = () => {
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queryParams.value = {
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pageNo: 1,
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pageSize: 10,
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// 默认获取上架的商品
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tabType: 0,
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name: '',
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categoryId: null,
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createTime: []
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}
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getList()
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}
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// 是否全选
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const isCheckAll = ref(false)
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// 全选框是否处于中间状态：不是全部选中 && 任意一个选中
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const isIndeterminate = ref(false)
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// 选中的商品
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const checkedSpus = ref<Spu[]>([])
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// 选中状态：key为商品ID，value为是否选中
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const checkedStatus = ref<Record<string, boolean>>({})
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// 选中的商品 spuId
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const selectedSpuId = ref()
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/** 单选中时触发 */
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const handleSingleSelected = (spu: Spu) => {
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emits(CHANGE_EVENT, spu)
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// 关闭弹窗
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dialogVisible.value = false
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// 记住上次选择的ID
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selectedSpuId.value = spu.id
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}
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/** 多选完成 */
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const handleEmitChange = () => {
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// 关闭弹窗
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dialogVisible.value = false
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emits(CHANGE_EVENT, [...checkedSpus.value])
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}
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/** 确认选择时的触发事件 */
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const emits = defineEmits<{
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change: [spu: Spu | Spu[] | any]
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}>()
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/** 全选/全不选 */
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const handleCheckAll = (checked: boolean) => {
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isCheckAll.value = checked
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isIndeterminate.value = false
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list.value.forEach((spu) => handleCheckOne(checked, spu, false))
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}
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/**
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* 选中一行
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* @param checked 是否选中
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* @param spu 商品
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* @param isCalcCheckAll 是否计算全选
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*/
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const handleCheckOne = (checked: boolean, spu: Spu, isCalcCheckAll: boolean) => {
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if (checked) {
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checkedSpus.value.push(spu)
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checkedStatus.value[spu.id] = true
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} else {
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const index = findCheckedIndex(spu)
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if (index > -1) {
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checkedSpus.value.splice(index, 1)
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checkedStatus.value[spu.id] = false
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isCheckAll.value = false
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}
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}
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// 计算全选框状态
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if (isCalcCheckAll) {
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calculateIsCheckAll()
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}
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}
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// 查找商品在已选中商品列表中的索引
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const findCheckedIndex = (spu: Spu) => checkedSpus.value.findIndex((item) => item.id === spu.id)
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// 计算全选框状态
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const calculateIsCheckAll = () => {
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isCheckAll.value = list.value.every((spu) => checkedStatus.value[spu.id])
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// 计算中间状态：不是全部选中 && 任意一个选中
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isIndeterminate.value = !isCheckAll.value && list.value.some((spu) => checkedStatus.value[spu.id])
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}
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// 分类列表
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const categoryList = ref()
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// 分类树
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const categoryTreeList = ref()
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/** 初始化 **/
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onMounted(async () => {
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await getList()
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// 获得分类树
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categoryList.value = await ProductCategoryApi.getCategoryList({})
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categoryTreeList.value = handleTree(categoryList.value, 'id', 'parentId')
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})
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</script>
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