优化目录结构

frontend/src/components/SearchDropdown.vue

@@ -0,0 +1,181 @@
+<template>
+  <div class="search-dropdown">
+    <Dropdown ref="dropdown" v-model="selected" :fetch-options="fetchResults" remote menu-class="search-menu"
+      option-class="search-option" :show-search="isMobile" @update:search="keyword = $event" @close="onClose">
+      <template #display="{ setSearch }">
+        <div class="search-input">
+          <i class="search-input-icon fas fa-search"></i>
+          <input class="text-input" v-model="keyword" placeholder="Search" @input="setSearch(keyword)" />
+        </div>
+      </template>
+      <template #option="{ option }">
+        <div class="search-option-item">
+          <i :class="['result-icon', iconMap[option.type] || 'fas fa-question']"></i>
+          <div class="result-body">
+            <div class="result-main" v-html="highlight(option.text)"></div>
+            <div v-if="option.subText" class="result-sub" v-html="highlight(option.subText)"></div>
+            <div v-if="option.extra" class="result-extra" v-html="highlight(option.extra)"></div>
+          </div>
+        </div>
+      </template>
+    </Dropdown>
+  </div>
+</template>
+
+<script>
+import { ref, watch } from 'vue'
+import { isMobile } from '../utils/screen'
+import { useRouter } from 'vue-router'
+import Dropdown from './Dropdown.vue'
+import { API_BASE_URL } from '../main'
+import { stripMarkdown } from '../utils/markdown'
+
+export default {
+  name: 'SearchDropdown',
+  components: { Dropdown },
+  emits: ['close'],
+  setup(props, { emit }) {
+    const router = useRouter()
+    const keyword = ref('')
+    const selected = ref(null)
+    const results = ref([])
+    const dropdown = ref(null)
+
+    const toggle = () => {
+      dropdown.value.toggle()
+    }
+
+    const onClose = () => emit('close')
+
+    const fetchResults = async (kw) => {
+      if (!kw) return []
+      const res = await fetch(`${API_BASE_URL}/api/search/global?keyword=${encodeURIComponent(kw)}`)
+      if (!res.ok) return []
+      const data = await res.json()
+      results.value = data.map(r => ({
+        id: r.id,
+        text: r.text,
+        type: r.type,
+        subText: r.subText,
+        extra: r.extra,
+        postId: r.postId
+      }))
+      return results.value
+    }
+
+    const highlight = (text) => {
+      text = stripMarkdown(text)
+      if (!keyword.value) return text
+      const reg = new RegExp(keyword.value, 'gi')
+      const res = text.replace(reg, m => `<span class="highlight">${m}</span>`)
+      return res; 
+    }
+
+    const iconMap = {
+      user: 'fas fa-user',
+      post: 'fas fa-file-alt',
+      comment: 'fas fa-comment',
+      category: 'fas fa-folder',
+      tag: 'fas fa-hashtag'
+    }
+
+    watch(selected, val => {
+      if (!val) return
+      const opt = results.value.find(r => r.id === val)
+      if (!opt) return
+      if (opt.type === 'post' || opt.type === 'post_title') {
+        router.push(`/posts/${opt.id}`)
+      } else if (opt.type === 'user') {
+        router.push(`/users/${opt.id}`)
+      } else if (opt.type === 'comment') {
+        if (opt.postId) {
+          router.push(`/posts/${opt.postId}#comment-${opt.id}`)
+        }
+      } else if (opt.type === 'category') {
+        router.push({ path: '/', query: { category: opt.id } })
+      } else if (opt.type === 'tag') {
+        router.push({ path: '/', query: { tags: opt.id } })
+      }
+      selected.value = null
+      keyword.value = ''
+    })
+
+    return { keyword, selected, fetchResults, highlight, iconMap, isMobile, dropdown, onClose, toggle }
+  }
+}
+</script>
+
+<style scoped>
+.search-dropdown {
+  margin-top: 20px;
+  width: 500px;
+}
+
+.search-mobile-trigger {
+  padding: 10px;
+  font-size: 18px;
+}
+
+.search-input {
+  padding: 10px;
+  display: flex;
+  align-items: center;
+  width: 100%;
+}
+
+.text-input {
+  background-color: var(--menu-background-color);
+  color: var(--text-color);
+  border: none;
+  outline: none;
+  width: 100%;
+  margin-left: 10px;
+  font-size: 16px;
+}
+
+.search-menu {
+  width: 100%;
+  max-width: 600px;
+}
+
+@media (max-width: 768px) {
+  .search-dropdown {
+    width: 100%;
+  }
+}
+
+.search-option-item {
+  display: flex;
+  gap: 10px;
+}
+
+.search-option {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  padding: 10px 20px;
+}
+
+:deep(.highlight) {
+  color: var(--primary-color);
+}
+
+.result-icon {
+  opacity: 0.6;
+}
+
+.result-body {
+  display: flex;
+  flex-direction: column;
+}
+
+.result-main {
+  font-weight: bold;
+}
+
+.result-sub,
+.result-extra {
+  font-size: 12px;
+  color: #666;
+}
+</style>