perf: enforce server-side pagination for tables and audit infinite scroll logic for selects

inventory-web/src/views/stock/inbound/service.vue

@@ -110,6 +110,8 @@
                         style="width: 100%"
                         @change="onMaterialSelected"
                         default-first-option
+                        v-loadmore="loadMoreMaterials"
+                        popper-class="long-dropdown"
                     >
                       <el-option
                           v-for="item in materialOptions"
@@ -122,6 +124,9 @@
                           <span class="opt-spec">{{ item.spec }}</span>
                         </div>
                       </el-option>
+                      <div v-if="loadingMore" style="text-align: center; color: #999; font-size: 12px; padding: 8px; background: #f9f9f9;">
+                        加载中...
+                      </div>
                     </el-select>
                   </el-form-item>
                 </el-col>
@@ -260,6 +265,26 @@ const hasFormFieldPermission = (fieldName: string) => {
   return userStore.hasPermission(code)
 }
 
+// 自定义指令：v-loadmore（适配 Teleport 到 Body 的下拉框）
+const vLoadmore = {
+  mounted(el: any, binding: any) {
+    const checkAndBind = () => {
+      const dropDownWrap = document.querySelector('.long-dropdown .el-select-dropdown__wrap')
+      if (dropDownWrap && !dropDownWrap.getAttribute('data-loadmore-bound')) {
+        dropDownWrap.setAttribute('data-loadmore-bound', 'true')
+        dropDownWrap.addEventListener('scroll', function (this: any) {
+          const condition = this.scrollHeight - this.scrollTop <= this.clientHeight + 1
+          if (condition) {
+            binding.value()
+          }
+        })
+      }
+    }
+    setTimeout(checkAndBind, 500)
+    el.addEventListener('click', () => setTimeout(checkAndBind, 300))
+  }
+}
+
 // 表格数据
 const tableData = ref<ServiceItem[]>([])
 const loading = ref(false)
@@ -269,6 +294,10 @@ const total = ref(0)
 
 const materialOptions = ref<any[]>([])
 const searchLoading = ref(false)
+const searchPage = ref(1)
+const hasNextPage = ref(true)
+const loadingMore = ref(false)
+const searchKeyword = ref('')
 
 const searchForm = reactive({
   keyword: '',
@@ -335,11 +364,15 @@ const handleMaterialDropdownVisible = (visible: boolean) => {
 
 const handleSearchMaterial = async (query: string) => {
   searchLoading.value = true
+  searchKeyword.value = query
+  searchPage.value = 1
+  materialOptions.value = []
   try {
-    const res = await searchMaterialBase(query)
+    const res: any = await searchMaterialBase(query, 1)
     if (res.code === 200) {
-      const apiResults = (res.data || []).map((i: any) => ({ ...i, isHistory: false }))
+      const apiResults = (res.data?.items || []).map((i: any) => ({ ...i, isHistory: false }))
       materialOptions.value = apiResults
+      hasNextPage.value = res.data?.has_next ?? false
     } else {
       materialOptions.value = []
     }
@@ -350,6 +383,26 @@ const handleSearchMaterial = async (query: string) => {
   }
 }
 
+const loadMoreMaterials = async () => {
+  if (searchLoading.value || loadingMore.value || !hasNextPage.value) return
+  loadingMore.value = true
+  searchPage.value += 1
+  try {
+    const res: any = await searchMaterialBase(searchKeyword.value, searchPage.value)
+    if (res.data && res.data.items && res.data.items.length > 0) {
+      const newItems = res.data.items.map((i: any) => ({ ...i, isHistory: false }))
+      materialOptions.value.push(...newItems)
+      hasNextPage.value = res.data.has_next
+    } else {
+      hasNextPage.value = false
+    }
+  } catch (e) {
+    searchPage.value -= 1
+  } finally {
+    loadingMore.value = false
+  }
+}
+
 const onMaterialSelected = (val: number) => {
   const item = materialOptions.value.find(i => i.id === val)
   if (item) {