347 lines
10 KiB
Vue
347 lines
10 KiB
Vue
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<template>
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<div class="layout-search">
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<el-dialog
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v-model="showSearchDialog"
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width="600"
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:show-close="false"
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:lock-scroll="false"
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modal-class="search-modal"
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@close="closeSearchDialog"
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>
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<el-input
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v-model.trim="searchVal"
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:placeholder="$t('search.placeholder')"
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@input="search"
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@blur="searchBlur"
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ref="searchInput"
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:prefix-icon="Search"
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>
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<template #suffix>
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<div class="search-keydown">
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<span>ESC</span>
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</div>
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</template>
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</el-input>
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<el-scrollbar class="search-scrollbar" max-height="370px" ref="searchResultScrollbar" always>
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<div class="result" v-show="searchResult.length">
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<div class="box" v-for="(item, index) in searchResult" :key="index">
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<div
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:class="{ highlighted: isHighlighted(index) }"
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@click="searchGoPage(item)"
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@mouseenter="highlightOnHover(index)"
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>
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{{ formatMenuTitle(item.meta.title) }}
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<i class="selected-icon iconfont-sys" v-show="isHighlighted(index)"></i>
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</div>
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</div>
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</div>
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<div
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class="history-box"
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v-show="!searchVal && searchResult.length === 0 && historyResult.length > 0"
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>
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<p class="title">{{ $t('search.historyTitle') }}</p>
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<div class="history-result">
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<div
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class="box"
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v-for="(item, index) in historyResult"
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:key="index"
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:class="{ highlighted: historyHIndex === index }"
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@click="searchGoPage(item)"
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@mouseenter="highlightOnHoverHistory(index)"
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>
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{{ formatMenuTitle(item.meta.title) }}
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<i class="selected-icon iconfont-sys" @click.stop="deleteHistory(index)"></i>
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</div>
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</div>
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</div>
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</el-scrollbar>
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<template #footer>
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<div class="dialog-footer">
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<div>
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<i class="iconfont-sys"></i>
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<i class="iconfont-sys"></i>
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<span>{{ $t('search.switchKeydown') }}</span>
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</div>
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<div>
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<i class="iconfont-sys"></i>
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<span>{{ $t('search.selectKeydown') }}</span>
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</div>
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</div>
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</template>
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</el-dialog>
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</div>
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</template>
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<script lang="ts" setup>
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import { nextTick } from 'vue'
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import { useUserStore } from '@/store/modules/user'
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import { AppRouteRecord } from '@/types/router'
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import { Search } from '@element-plus/icons-vue'
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import { mittBus } from '@/utils/sys'
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import { useMenuStore } from '@/store/modules/menu'
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import { formatMenuTitle } from '@/router/utils/utils'
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import type { ScrollbarInstance } from 'element-plus'
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const router = useRouter()
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const userStore = useUserStore()
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const { menuList } = storeToRefs(useMenuStore())
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const showSearchDialog = ref(false)
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const searchVal = ref('')
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const searchResult = ref<AppRouteRecord[]>([])
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const historyMaxLength = 10
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const { searchHistory: historyResult } = storeToRefs(userStore)
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const searchInput = ref<HTMLInputElement | null>(null)
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const highlightedIndex = ref(0)
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const historyHIndex = ref(0)
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const searchResultScrollbar = ref<ScrollbarInstance>()
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const isKeyboardNavigating = ref(false) // 新增状态：是否正在使用键盘导航
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// 生命周期钩子
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onMounted(() => {
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mittBus.on('openSearchDialog', openSearchDialog)
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document.addEventListener('keydown', handleKeydown)
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})
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onUnmounted(() => {
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document.removeEventListener('keydown', handleKeydown)
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})
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// 键盘快捷键处理
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const handleKeydown = (event: KeyboardEvent) => {
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const isMac = navigator.platform.toUpperCase().indexOf('MAC') >= 0
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const isCommandKey = isMac ? event.metaKey : event.ctrlKey
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if (isCommandKey && event.key.toLowerCase() === 'k') {
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event.preventDefault()
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showSearchDialog.value = true
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focusInput()
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}
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// 当搜索对话框打开时，处理方向键和回车键
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if (showSearchDialog.value) {
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if (event.key === 'ArrowUp') {
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event.preventDefault()
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highlightPrevious()
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} else if (event.key === 'ArrowDown') {
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event.preventDefault()
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highlightNext()
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} else if (event.key === 'Enter') {
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event.preventDefault()
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selectHighlighted()
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} else if (event.key === 'Escape') {
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event.preventDefault()
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showSearchDialog.value = false
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}
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}
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}
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const focusInput = () => {
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setTimeout(() => {
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searchInput.value?.focus()
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}, 100)
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}
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// 搜索逻辑
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const search = (val: string) => {
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if (val) {
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searchResult.value = flattenAndFilterMenuItems(menuList.value, val)
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} else {
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searchResult.value = []
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}
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}
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const flattenAndFilterMenuItems = (items: AppRouteRecord[], val: string): AppRouteRecord[] => {
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const lowerVal = val.toLowerCase()
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const result: AppRouteRecord[] = []
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const flattenAndMatch = (item: AppRouteRecord) => {
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if (item.meta?.isHide) return
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const lowerItemTitle = formatMenuTitle(item.meta.title).toLowerCase()
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if (item.children && item.children.length > 0) {
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item.children.forEach(flattenAndMatch)
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return
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}
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if (lowerItemTitle.includes(lowerVal) && item.path) {
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result.push({ ...item, children: undefined })
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}
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}
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items.forEach(flattenAndMatch)
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return result
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}
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// 高亮控制并实现滚动条跟随
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const highlightPrevious = () => {
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isKeyboardNavigating.value = true
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if (searchVal.value) {
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highlightedIndex.value =
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(highlightedIndex.value - 1 + searchResult.value.length) % searchResult.value.length
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scrollToHighlightedItem()
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} else {
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historyHIndex.value =
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(historyHIndex.value - 1 + historyResult.value.length) % historyResult.value.length
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scrollToHighlightedHistoryItem()
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}
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// 延迟重置键盘导航状态，防止立即被 hover 覆盖
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setTimeout(() => {
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isKeyboardNavigating.value = false
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}, 100)
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}
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const highlightNext = () => {
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isKeyboardNavigating.value = true
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if (searchVal.value) {
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highlightedIndex.value = (highlightedIndex.value + 1) % searchResult.value.length
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scrollToHighlightedItem()
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} else {
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historyHIndex.value = (historyHIndex.value + 1) % historyResult.value.length
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scrollToHighlightedHistoryItem()
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}
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setTimeout(() => {
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isKeyboardNavigating.value = false
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}, 100)
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}
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const scrollToHighlightedItem = () => {
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nextTick(() => {
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if (!searchResultScrollbar.value || !searchResult.value.length) return
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const scrollWrapper = searchResultScrollbar.value.wrapRef
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if (!scrollWrapper) return
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const highlightedElements = scrollWrapper.querySelectorAll('.result .box')
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if (!highlightedElements[highlightedIndex.value]) return
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const highlightedElement = highlightedElements[highlightedIndex.value] as HTMLElement
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const itemHeight = highlightedElement.offsetHeight
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const scrollTop = scrollWrapper.scrollTop
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const containerHeight = scrollWrapper.clientHeight
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const itemTop = highlightedElement.offsetTop
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const itemBottom = itemTop + itemHeight
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if (itemTop < scrollTop) {
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searchResultScrollbar.value.setScrollTop(itemTop)
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} else if (itemBottom > scrollTop + containerHeight) {
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searchResultScrollbar.value.setScrollTop(itemBottom - containerHeight)
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}
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})
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}
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const scrollToHighlightedHistoryItem = () => {
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nextTick(() => {
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if (!searchResultScrollbar.value || !historyResult.value.length) return
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const scrollWrapper = searchResultScrollbar.value.wrapRef
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if (!scrollWrapper) return
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const historyItems = scrollWrapper.querySelectorAll('.history-result .box')
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if (!historyItems[historyHIndex.value]) return
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const highlightedElement = historyItems[historyHIndex.value] as HTMLElement
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const itemHeight = highlightedElement.offsetHeight
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const scrollTop = scrollWrapper.scrollTop
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const containerHeight = scrollWrapper.clientHeight
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const itemTop = highlightedElement.offsetTop
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const itemBottom = itemTop + itemHeight
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if (itemTop < scrollTop) {
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searchResultScrollbar.value.setScrollTop(itemTop)
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} else if (itemBottom > scrollTop + containerHeight) {
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searchResultScrollbar.value.setScrollTop(itemBottom - containerHeight)
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}
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})
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}
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const selectHighlighted = () => {
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if (searchVal.value && searchResult.value.length) {
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searchGoPage(searchResult.value[highlightedIndex.value])
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} else if (!searchVal.value && historyResult.value.length) {
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searchGoPage(historyResult.value[historyHIndex.value])
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}
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}
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const isHighlighted = (index: number) => {
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return highlightedIndex.value === index
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}
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const searchBlur = () => {
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highlightedIndex.value = 0
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}
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const searchGoPage = (item: AppRouteRecord) => {
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showSearchDialog.value = false
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addHistory(item)
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router.push(item.path)
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searchVal.value = ''
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searchResult.value = []
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}
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// 历史记录管理
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const updateHistory = () => {
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if (Array.isArray(historyResult.value)) {
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userStore.setSearchHistory(historyResult.value)
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}
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}
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const addHistory = (item: AppRouteRecord) => {
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const hasItemIndex = historyResult.value.findIndex(
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(historyItem: AppRouteRecord) => historyItem.path === item.path
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)
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if (hasItemIndex !== -1) {
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historyResult.value.splice(hasItemIndex, 1)
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} else if (historyResult.value.length >= historyMaxLength) {
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historyResult.value.pop()
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}
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const cleanedItem = { ...item }
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delete cleanedItem.children
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delete cleanedItem.meta.authList
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historyResult.value.unshift(cleanedItem)
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updateHistory()
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}
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const deleteHistory = (index: number) => {
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historyResult.value.splice(index, 1)
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updateHistory()
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}
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// 对话框控制
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const openSearchDialog = () => {
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showSearchDialog.value = true
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focusInput()
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}
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const closeSearchDialog = () => {
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searchVal.value = ''
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searchResult.value = []
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highlightedIndex.value = 0
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historyHIndex.value = 0
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}
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// 修改 hover 高亮逻辑，只有在非键盘导航时才生效
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const highlightOnHover = (index: number) => {
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if (!isKeyboardNavigating.value && searchVal.value) {
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highlightedIndex.value = index
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}
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}
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const highlightOnHoverHistory = (index: number) => {
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if (!isKeyboardNavigating.value && !searchVal.value) {
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historyHIndex.value = index
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}
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}
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</script>
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<style lang="scss" scoped>
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@use './style';
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</style>
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