✨ feat(mes): 新增物料产品选择器 V2 组件

src/views/mes/md/item/components/MdItemSelectDialogV2.vue

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+<!--
+  MES 物料产品弹窗选择器 V2（支持单选/多选）
+
+  Props:
+    multiple — true 多选（checkbox），false 单选（radio）；默认 true
+  Events:
+    selected(rows: MdItemVO[]) — 确认选择后触发，单选时数组长度为 1
+  Expose:
+    open(selectedIds?: number[]) — 打开弹窗，可传入已选 ID 用于预选高亮
+-->
+<template>
+  <Dialog title="物料产品选择" v-model="dialogVisible" width="80%">
+    <el-row :gutter="20">
+      <!-- 左侧：分类树 -->
+      <el-col :span="5">
+        <MdItemTypeTree ref="typeTreeRef" @node-click="handleNodeClick" />
+      </el-col>
+      <!-- 右侧：物料表格 -->
+      <el-col :span="19">
+        <!-- 搜索表单 -->
+        <el-form :inline="true" :model="queryParams" class="mb-10px" label-width="80px">
+          <el-form-item label="物料编码">
+            <el-input
+              v-model="queryParams.code"
+              placeholder="请输入物料编码"
+              clearable
+              @keyup.enter="handleQuery"
+            />
+          </el-form-item>
+          <el-form-item label="物料名称">
+            <el-input
+              v-model="queryParams.name"
+              placeholder="请输入物料名称"
+              clearable
+              @keyup.enter="handleQuery"
+            />
+          </el-form-item>
+          <el-form-item>
+            <el-button type="primary" @click="handleQuery">
+              <Icon icon="ep:search" class="mr-5px" /> 搜索
+            </el-button>
+            <el-button @click="resetQuery">
+              <Icon icon="ep:refresh" class="mr-5px" /> 重置
+            </el-button>
+          </el-form-item>
+        </el-form>
+        <!-- 数据表格：单选 radio / 多选 checkbox 统一在一个 table 内 -->
+        <el-table
+          ref="tableRef"
+          v-loading="loading"
+          :data="list"
+          :stripe="true"
+          :show-overflow-tooltip="true"
+          border
+          :highlight-current-row="!multiple"
+          @selection-change="handleSelectionChange"
+          @row-dblclick="handleRowDblClick"
+        >
+          <!-- 多选：checkbox -->
+          <el-table-column v-if="multiple" type="selection" width="50" align="center" />
+          <!-- 单选：radio -->
+          <el-table-column v-else width="50" align="center">
+            <template #default="{ row }">
+              <el-radio
+                v-model="selectedRadioId"
+                :value="row.id"
+                class="radio-no-label"
+                @change="handleRadioChange(row)"
+              />
+            </template>
+          </el-table-column>
+          <el-table-column label="物料编码" align="center" prop="code" width="200" />
+          <el-table-column label="物料名称" align="left" prop="name" min-width="150" />
+          <el-table-column label="规格型号" align="left" prop="specification" min-width="120" />
+          <el-table-column label="单位" align="center" prop="unitMeasureName" width="80" />
+          <el-table-column label="物料/产品" align="center" prop="itemOrProduct" width="100">
+            <template #default="scope">
+              <dict-tag :type="DICT_TYPE.MES_MD_ITEM_OR_PRODUCT" :value="scope.row.itemOrProduct" />
+            </template>
+          </el-table-column>
+          <el-table-column label="所属分类" align="center" prop="itemTypeName" width="120" />
+          <el-table-column
+            label="创建时间"
+            align="center"
+            prop="createTime"
+            :formatter="dateFormatter"
+            width="180"
+          />
+        </el-table>
+        <!-- 分页 -->
+        <Pagination
+          :total="total"
+          v-model:page="queryParams.pageNo"
+          v-model:limit="queryParams.pageSize"
+          @pagination="getList"
+        />
+      </el-col>
+    </el-row>
+    <template #footer>
+      <el-button type="primary" @click="confirmSelect">确 定</el-button>
+      <el-button @click="dialogVisible = false">取 消</el-button>
+    </template>
+  </Dialog>
+</template>
+
+<script setup lang="ts">
+import { DICT_TYPE } from '@/utils/dict'
+import { dateFormatter } from '@/utils/formatTime'
+import { MdItemApi, MdItemVO } from '@/api/mes/md/item'
+import { MdItemTypeVO } from '@/api/mes/md/item/type'
+import MdItemTypeTree from '@/views/mes/md/item/type/components/MdItemTypeTree.vue'
+
+defineOptions({ name: 'MdItemSelectDialogV2' })
+
+const props = withDefaults(
+  defineProps<{
+    multiple?: boolean // true 多选（checkbox），false 单选（radio）
+  }>(),
+  {
+    multiple: true
+  }
+)
+
+const message = useMessage()
+const emit = defineEmits<{
+  selected: [rows: MdItemVO[]]
+}>()
+
+const dialogVisible = ref(false) // 弹窗是否展示
+const loading = ref(false) // 列表加载中
+const list = ref<MdItemVO[]>([]) // 物料列表
+const total = ref(0) // 总条数
+
+// ==================== 选中状态 ====================
+const tableRef = ref() // 表格 Ref
+const typeTreeRef = ref() // 分类树 Ref
+const selectedRows = ref<MdItemVO[]>([]) // 多选模式：选中行
+const selectedRadioId = ref<number>() // 单选模式：选中 ID
+const currentRadioRow = ref<MdItemVO>() // 单选模式：选中行对象
+const preSelectedIds = ref<number[]>([]) // 打开弹窗时传入的已选 ID
+
+/** 多选：checkbox 变化 */
+const handleSelectionChange = (rows: MdItemVO[]) => {
+  if (props.multiple) {
+    selectedRows.value = rows
+  }
+}
+
+/** 单选：radio 变化 */
+const handleRadioChange = (row: MdItemVO) => {
+  currentRadioRow.value = row
+}
+
+/** 双击行：单选模式直接确认 */
+const handleRowDblClick = (row: MdItemVO) => {
+  if (props.multiple) {
+    return
+  }
+  selectedRadioId.value = row.id
+  currentRadioRow.value = row
+  confirmSelect()
+}
+
+// ==================== 分类树 ====================
+
+/** 点击分类树节点，按分类筛选 */
+const handleNodeClick = (data: MdItemTypeVO) => {
+  queryParams.itemTypeId = data.id
+  handleQuery()
+}
+
+// ==================== 物料查询 ====================
+const queryParams = reactive({
+  pageNo: 1, // 页码
+  pageSize: 10, // 每页条数
+  code: undefined as string | undefined, // 物料编码
+  name: undefined as string | undefined, // 物料名称
+  itemTypeId: undefined as number | undefined // 物料分类编号
+})
+
+/** 查询物料列表 */
+const getList = async () => {
+  loading.value = true
+  try {
+    const data = await MdItemApi.getItemPage(queryParams)
+    list.value = data.list
+    total.value = data.total
+    await nextTick()
+    applyPreSelection()
+  } finally {
+    loading.value = false
+  }
+}
+
+/** 恢复预选状态（当前页可见范围内） */
+const applyPreSelection = () => {
+  if (preSelectedIds.value.length === 0) {
+    return
+  }
+  if (props.multiple) {
+    const table = tableRef.value
+    if (!table) {
+      return
+    }
+    list.value.forEach((row) => {
+      if (preSelectedIds.value.includes(row.id)) {
+        table.toggleRowSelection(row, true)
+      }
+    })
+  } else {
+    const match = list.value.find((row) => preSelectedIds.value.includes(row.id))
+    if (match) {
+      selectedRadioId.value = match.id
+      currentRadioRow.value = match
+    }
+  }
+}
+
+/** 搜索按钮操作 */
+const handleQuery = () => {
+  queryParams.pageNo = 1
+  getList()
+}
+
+/** 重置查询条件 */
+const resetQuery = () => {
+  queryParams.code = undefined
+  queryParams.name = undefined
+  queryParams.itemTypeId = undefined
+  handleQuery()
+}
+
+/** 确认选择 */
+const confirmSelect = () => {
+  if (props.multiple) {
+    if (selectedRows.value.length === 0) {
+      message.warning('请至少选择一条数据')
+      return
+    }
+    emit('selected', selectedRows.value)
+  } else {
+    if (!currentRadioRow.value) {
+      message.warning('请选择一条数据')
+      return
+    }
+    emit('selected', [currentRadioRow.value])
+  }
+  dialogVisible.value = false
+}
+
+// ==================== 打开弹窗 ====================
+
+/** 打开弹窗，可传入已选 ID 用于预选高亮 */
+const open = async (selectedIds?: number[]) => {
+  dialogVisible.value = true
+  selectedRows.value = []
+  selectedRadioId.value = undefined
+  currentRadioRow.value = undefined
+  preSelectedIds.value = selectedIds ?? []
+  await getList()
+}
+defineExpose({ open })
+</script>
+
+<style lang="scss" scoped>
+/* 隐藏 radio 的 label 文字，只保留圆圈 */
+.radio-no-label {
+  :deep(.el-radio__label) {
+    display: none;
+  }
+}
+</style>

src/views/mes/md/item/components/MdItemSelectV2.vue

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+<!--
+  MES 物料产品选择器 V2：只读输入框 + 点击弹窗选择
+
+  交互：显示为只读 el-input，点击打开弹窗（单选模式）进行选择
+  Props:
+    modelValue  — 绑定的物料 ID（v-model）
+    disabled    — 是否禁用
+    clearable   — 是否允许清空（鼠标悬停时显示清除图标）
+    placeholder — 占位文字
+  Events:
+    update:modelValue — v-model 更新
+    change(item)      — 选中物料变化时触发，传递完整 MdItemVO（清空时为 undefined）
+-->
+<template>
+  <div
+    class="w-full"
+    :class="disabled ? 'cursor-not-allowed' : 'cursor-pointer'"
+    @click="handleClick"
+    @mouseenter="hovering = true"
+    @mouseleave="hovering = false"
+  >
+    <el-input
+      ref="inputRef"
+      :model-value="displayLabel"
+      :placeholder="placeholder"
+      :disabled="disabled"
+      readonly
+      :suffix-icon="suffixIcon"
+      :class="disabled ? 'is-select-disabled' : 'is-select-clickable'"
+    />
+  </div>
+  <!-- 弹窗选择器（单选模式） -->
+  <MdItemSelectDialogV2 ref="dialogRef" :multiple="false" @selected="handleSelected" />
+</template>
+
+<script setup lang="ts">
+import { MdItemApi, MdItemVO } from '@/api/mes/md/item'
+import { Search, CircleClose } from '@element-plus/icons-vue'
+import MdItemSelectDialogV2 from './MdItemSelectDialogV2.vue'
+
+defineOptions({ name: 'MdItemSelectV2' })
+
+const props = withDefaults(
+  defineProps<{
+    modelValue?: number // 绑定的物料 ID
+    disabled?: boolean // 是否禁用
+    clearable?: boolean // 是否允许清空
+    placeholder?: string // 占位文字
+  }>(),
+  {
+    disabled: false,
+    clearable: true,
+    placeholder: '请选择产品物料'
+  }
+)
+
+const emit = defineEmits<{
+  'update:modelValue': [value: number | undefined]
+  change: [item: MdItemVO | undefined]
+}>()
+
+const dialogRef = ref() // 弹窗 Ref
+const inputRef = ref() // 输入框 Ref
+const hovering = ref(false) // 鼠标是否悬停
+
+// ==================== 名称回显 ====================
+const selectedItem = ref<MdItemVO | undefined>() // 当前选中的物料对象
+const resolving = ref(false) // 是否正在查询回显
+
+/** 显示文本：物料名称 */
+const displayLabel = computed(() => {
+  return selectedItem.value?.name ?? ''
+})
+
+/** 是否显示清除图标 */
+const showClear = computed(() => {
+  return props.clearable && !props.disabled && hovering.value && props.modelValue != null
+})
+
+/** 后缀图标：悬停且有值时显示清除，否则显示搜索 */
+const suffixIcon = computed(() => {
+  return showClear.value ? CircleClose : Search
+})
+
+/** 根据 ID 单条查询物料信息（用于编辑回显） */
+const resolveItemById = async (id: number | undefined) => {
+  if (id == null) {
+    selectedItem.value = undefined
+    return
+  }
+  if (selectedItem.value?.id === id) {
+    return
+  }
+  resolving.value = true
+  try {
+    selectedItem.value = await MdItemApi.getItem(id)
+  } finally {
+    resolving.value = false
+  }
+}
+
+/** 监听 modelValue 变化，触发回显 */
+watch(
+  () => props.modelValue,
+  (val) => {
+    resolveItemById(val)
+  },
+  { immediate: true }
+)
+
+// ==================== 点击交互 ====================
+
+/** 点击组件：清除或打开弹窗 */
+const handleClick = (e: MouseEvent) => {
+  if (props.disabled) {
+    return
+  }
+  // 点击清除图标：清空选中
+  const target = e.target as HTMLElement
+  if (showClear.value && target.closest('.el-input__suffix')) {
+    e.stopPropagation()
+    selectedItem.value = undefined
+    emit('update:modelValue', undefined)
+    emit('change', undefined)
+    return
+  }
+  // 打开弹窗，传入当前选中 ID 用于预选高亮
+  const selectedIds = props.modelValue != null ? [props.modelValue] : []
+  dialogRef.value.open(selectedIds)
+}
+
+/** 弹窗选中回调 */
+const handleSelected = (rows: MdItemVO[]) => {
+  if (!rows || rows.length === 0) {
+    return
+  }
+  const item = rows[0]
+  selectedItem.value = item
+  emit('update:modelValue', item.id)
+  emit('change', item)
+}
+</script>
+
+<style lang="scss" scoped>
+/* :deep 用于穿透 el-input 内部元素的 cursor 样式，UnoCSS 无法直接处理组件内部 DOM */
+.is-select-clickable {
+  :deep(.el-input__wrapper),
+  :deep(.el-input__inner) {
+    cursor: pointer;
+  }
+}
+
+.is-select-disabled {
+  :deep(.el-input__wrapper),
+  :deep(.el-input__inner) {
+    cursor: not-allowed;
+  }
+}
+</style>