CMVR-IOT-UI/src/components/HeaderSearch/index.vue

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<template>
<div class="header-search">
<svg-icon class-name="search-icon" icon-class="search" @click.stop="click" />
<el-dialog
v-model="show"
width="600"
@close="close"
@opened="onDialogOpened"
:show-close="false"
append-to-body
>
<el-input
v-model="search"
ref="headerSearchSelectRef"
size="large"
@input="querySearch"
prefix-icon="Search"
placeholder="菜单搜索支持标题、URL模糊查询"
clearable
@keyup.enter="selectActiveResult"
@keydown.up.prevent="navigateResult('up')"
@keydown.down.prevent="navigateResult('down')"
>
</el-input>
<div class="result-count" v-if="search && options.length > 0">
找到 <strong>{{ options.length }}</strong> 个结果
</div>
<div class="result-wrap">
<el-scrollbar>
<template v-if="options.length > 0">
<div
class="search-item"
tabindex="1"
v-for="(item, index) in options"
:key="item.path"
:class="{ 'is-active': index === activeIndex }"
:style="activeStyle(index)"
@mouseenter="activeIndex = index"
@mouseleave="activeIndex = -1"
>
<div class="left">
<svg-icon class="menu-icon" :icon-class="item.icon" />
</div>
<div class="search-info" @click="change(item)">
<div class="menu-title" v-html="highlightText(item.title.join(' / '))"></div>
<div class="menu-path" v-html="highlightText(item.path)"></div>
</div>
<svg-icon icon-class="enter" v-show="index === activeIndex" />
</div>
</template>
<div class="empty-state" v-else-if="search && options.length === 0">
<el-icon class="empty-icon"><Search /></el-icon>
<p class="empty-text">未找到 "<strong>{{ search }}</strong>" 相关菜单</p>
<p class="empty-tip">试试其他关键词或路径</p>
</div>
</el-scrollbar>
</div>
<div class="search-footer">
<span class="shortcut-item">
<kbd>↑</kbd><kbd>↓</kbd> 切换
</span>
<span class="shortcut-item">
<kbd>↵</kbd> 选择
</span>
<span class="shortcut-item">
<kbd>Esc</kbd> 关闭
</span>
</div>
</el-dialog>
</div>
</template>
<script setup>
import Fuse from 'fuse.js'
import { getNormalPath } from '@/utils/ruoyi'
import { isHttp } from '@/utils/validate'
import useSettingsStore from '@/store/modules/settings'
import usePermissionStore from '@/store/modules/permission'
const search = ref('')
const options = ref([])
const searchPool = ref([])
const activeIndex = ref(-1)
const show = ref(false)
const fuse = ref(undefined)
const headerSearchSelectRef = ref(null)
const router = useRouter()
const theme = computed(() => useSettingsStore().theme)
const routes = computed(() => usePermissionStore().defaultRoutes)
function click() {
show.value = !show.value
if (show.value) {
options.value = searchPool.value
}
}
function onDialogOpened() {
nextTick(() => {
headerSearchSelectRef.value && headerSearchSelectRef.value.focus()
})
}
function close() {
headerSearchSelectRef.value && headerSearchSelectRef.value.blur()
search.value = ''
options.value = searchPool.value
show.value = false
activeIndex.value = -1
}
function change(val) {
const p = val.path
const query = val.query
if (isHttp(p)) {
// http(s):// 路径新窗口打开
const pindex = p.indexOf("http")
window.open(p.substr(pindex, p.length), "_blank")
} else {
if (query) {
router.push({ path: p, query: JSON.parse(query) })
} else {
router.push(p)
}
}
search.value = ''
options.value = searchPool.value
nextTick(() => {
show.value = false
})
}
function initFuse(list) {
fuse.value = new Fuse(list, {
shouldSort: true,
threshold: 0.2,
distance: 100,
minMatchCharLength: 1,
keys: [{
name: 'title',
weight: 0.7
}, {
name: 'path',
weight: 0.3
}]
})
}
function generateRoutes(routes, basePath = '', prefixTitle = []) {
let res = []
for (const r of routes) {
if (r.hidden) { continue }
const p = r.path.length > 0 && r.path[0] === '/' ? r.path : '/' + r.path
const data = {
path: !isHttp(r.path) ? getNormalPath(basePath + p) : r.path,
title: [...prefixTitle],
icon: ''
}
if (r.meta && r.meta.title) {
data.title = [...data.title, r.meta.title]
data.icon = r.meta.icon
if (r.redirect !== "noRedirect") {
res.push(data)
}
}
if (r.query) {
data.query = r.query
}
if (r.children) {
const tempRoutes = generateRoutes(r.children, data.path, data.title)
if (tempRoutes.length >= 1) {
res = [...res, ...tempRoutes]
}
}
}
return res
}
function querySearch(query) {
activeIndex.value = -1
if (query !== '') {
const q = query.toLowerCase()
const pathMatches = searchPool.value.filter(item =>
item.path.toLowerCase().includes(q)
)
const fuseMatches = fuse.value.search(query).map(item => item.item)
const merged = [...pathMatches]
fuseMatches.forEach(item => {
if (!merged.find(m => m.path === item.path)) {
merged.push(item)
}
})
options.value = merged
} else {
options.value = searchPool.value
}
}
function activeStyle(index) {
if (index !== activeIndex.value) return {}
return {
"background-color": theme.value,
"color": "#fff"
}
}
function navigateResult(direction) {
if (direction === "up") {
activeIndex.value = activeIndex.value <= 0 ? options.value.length - 1 : activeIndex.value - 1
} else if (direction === "down") {
activeIndex.value = activeIndex.value >= options.value.length - 1 ? 0 : activeIndex.value + 1
}
}
function selectActiveResult() {
if (options.value.length > 0 && activeIndex.value >= 0) {
change(options.value[activeIndex.value])
}
}
function highlightText(text) {
if (!text) return ''
if (!search.value) return text
const keyword = escapeRegExp(search.value)
const reg = new RegExp(`(${keyword})`, 'gi')
return text.replace(reg, '<span class="highlight">$1</span>')
}
function escapeRegExp(str) {
return str.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
}
onMounted(() => {
searchPool.value = generateRoutes(routes.value)
})
watch(searchPool, (list) => {
initFuse(list)
})
</script>
<style lang='scss' scoped>
.header-search {
font-size: 0 !important;
.search-icon {
cursor: pointer;
font-size: 18px;
vertical-align: middle;
}
.header-search-select {
font-size: 18px;
transition: width 0.2s;
width: 0;
overflow: hidden;
background: transparent;
border-radius: 0;
display: inline-block;
vertical-align: middle;
:deep(.el-input__inner) {
border-radius: 0;
border: 0;
padding-left: 0;
padding-right: 0;
box-shadow: none !important;
border-bottom: 1px solid #d9d9d9;
vertical-align: middle;
}
}
&.show {
.header-search-select {
width: 210px;
margin-left: 10px;
}
}
}
</style>