添加搜索框下拉建议功能，支持键盘导航和模糊搜索，优化输入框交互体验

src/views/Home.vue

@@ -3,7 +3,7 @@
     <d-layout>
       <d-content class="main-content">
         <div class="pt-8 px-12 relative hidden lg:block">
-          <d-input class="devui-input-demo__mt" size="lg" v-model="searchWord" @keyup.enter="search" placeholder="请输入">
+          <d-input class="devui-input-demo__mt" size="lg" v-model="searchWord" placeholder="请输入">
             <template #prepend>
               <d-select class="w-48" size="lg" v-model="broswer" :options="options"></d-select>
             </template>
@@ -11,6 +11,12 @@
               <d-icon name="search" style="font-size: inherit;" @click="search" />
             </template>
           </d-input>
+          <div v-if="searchBox" class="absolute left-34 mt-2 z-10 bg-white text-sm text-gray-500 max-h-40 rounded-md shadow-md px-4 py-2 max-w-80">
+            <div class="flex p-2 pr-20 truncate rounded-md items-center hover:text-primary cursor-pointer"
+              :class="selecedIdx === idx ? 'text-white bg-primary' : ''" v-for="(i, idx) in searchItems"
+              :key="idx" @click="goExtra(i.menu_link)" @keyup.enter ="goExtra(i.menu_link)"
+              ><span v-if="idx">导航：</span> {{i.menu_name }}</div>
+          </div>
         </div>
         <!-- 标签组 -->
         <!-- <PerfectScrollbar class="w-full overflow-x-auto"> -->
@@ -21,7 +27,8 @@
         <!-- </PerfectScrollbar> -->
         <!-- 图片网格展示区域 -->
         <PerfectScrollbar class="" :style="navStyle">
-          <div ref="navcards" class="navcard grid-cols-2 lg:grid-cols-3 xl:grid-cols-4 2xl:grid-cols-6 gap-5 pt-3 pb-6 px-2 lg:px-12">
+          <div ref="navcards"
+            class="navcard grid-cols-2 lg:grid-cols-3 xl:grid-cols-4 2xl:grid-cols-6 gap-5 pt-3 pb-6 px-2 lg:px-12">
             <d-card class="bg-[#ffffff80] h-24" v-for="(item, index) in navlist" :key="index"
               @click="goExtra(item.menu_link)" @contextmenu.prevent="handdleContextMenu($event, item)">
               <template #content>
@@ -162,6 +169,9 @@ const contentStyle: any = ref({})
 const navStyle: any = ref({})
 const searchWord: any = ref('')
 const broswer: any = ref('bing')
+const searchItems: any = ref([])
+const selecedIdx = ref(0)
+const searchBox = ref(false)
 const options = ref([
   {
     name: '必应',
@@ -201,6 +211,67 @@ const tagList: any = ref([
 const usrLog = $store.log.useLogStore()
 let timer: any = null;
 
+// 输入搜索内容时监听searchWord在navlist中模糊搜索
+watch(searchWord, () => {
+  handdleInput()
+})
+
+
+function handdleInput() {
+  if (!searchWord.value) {
+    searchItems.value = []
+    searchBox.value = false
+    selecedIdx.value = 0
+    return
+  }
+  searchBox.value = true
+  selecedIdx.value = 0
+  const keyword = searchWord.value.toLowerCase()
+  searchItems.value = navlist.value.filter((item: any) =>
+    item.menu_name.toLowerCase().includes(keyword) ||
+    item.menu_link.toLowerCase().includes(keyword) ||
+    item.tag.toLowerCase().includes(keyword)
+  )
+  // 在searchItems第一个位置插入一条原本搜索
+  searchItems.value.unshift({
+    menu_name: `在${getDictValue(options.value, "value", broswer.value, "name")}中搜索"${searchWord.value}"`,
+    menu_link: getDictValue(options.value, "value", broswer.value, "url") + searchWord.value,
+    tag: ''
+  })
+}
+
+function handdleKeyup(e: any) {
+  if (!searchBox.value) return
+  // console.log('>>> --> haddleDown --> idx:', e.keyCode)
+  // 向下箭头
+  if (e.keyCode == 40) {
+    if (selecedIdx.value < searchItems.value.length - 1) {
+      selecedIdx.value += 1
+    } else {
+      selecedIdx.value = 0
+    }
+  }
+  // 向上箭头
+  else if (e.keyCode == 38) {
+    if (selecedIdx.value > 0) {
+      selecedIdx.value -= 1
+    } else {
+      selecedIdx.value = searchItems.value.length - 1
+    }
+  }
+  // 回车键
+  else if (e.keyCode == 13) {
+    if (searchItems.value.length > 0) {
+      const selectedItem = searchItems.value[selecedIdx.value]
+      window.open(selectedItem.menu_link, "_BLANK")
+      searchBox.value = false
+      selecedIdx.value = 0
+    }
+  }
+}
+
+
+
 // 2秒后自动隐藏菜单
 const hideMenu = () => {
   timer = setTimeout(() => {
@@ -443,7 +514,7 @@ onMounted(() => {
   }
   navStyle.value = {
     // height: `calc(100vh - ${navcards.value.getBoundingClientRect().y}px - ${nav.navH}px)`,
-    height:`${window.innerHeight - navcards.value.getBoundingClientRect().y - 20}px`
+    height: `${window.innerHeight - navcards.value.getBoundingClientRect().y - 20}px`
   }
   tagList.value = [
     {
@@ -453,15 +524,17 @@ onMounted(() => {
     }
   ]
   getNavList()
-window.addEventListener('resize', ()=>{
-contentStyle.value = {
+  window.addEventListener('resize', () => {
+    contentStyle.value = {
       height: `calc(100vh - ${nav.navH}px)`
     }
     navStyle.value = {
-   height:`${window.innerHeight - navcards.value.getBoundingClientRect().top - 20}px`
+      height: `${window.innerHeight - navcards.value.getBoundingClientRect().top - 20}px`
     }
-});
-
+  });
+  window.addEventListener('keyup', (e: Event) => {
+    handdleKeyup(e)
+  });
 })
 </script>