vue实现collapse搜索

实现折叠搜索功能

在Vue中实现折叠搜索功能可以通过结合v-show或v-if指令与数据绑定完成。以下是具体实现方法：

基础实现方式

创建可折叠的搜索框组件：

<template>
  <div>
    <button @click="toggleSearch">Toggle Search</button>
    <div v-show="isSearchVisible">
      <input v-model="searchQuery" placeholder="Search...">
      <button @click="performSearch">Search</button>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      isSearchVisible: false,
      searchQuery: ''
    }
  },
  methods: {
    toggleSearch() {
      this.isSearchVisible = !this.isSearchVisible
    },
    performSearch() {
      this.$emit('search', this.searchQuery)
    }
  }
}
</script>

添加动画效果

使用Vue的transition组件实现平滑的展开/折叠动画：

<transition name="slide-fade">
  <div v-show="isSearchVisible" class="search-container">
    <input v-model="searchQuery">
  </div>
</transition>

<style>
.slide-fade-enter-active, .slide-fade-leave-active {
  transition: all 0.3s ease;
}
.slide-fade-enter, .slide-fade-leave-to {
  transform: translateY(-10px);
  opacity: 0;
}
.search-container {
  margin: 10px 0;
}
</style>

结合搜索功能

实现完整的搜索功能，包括结果展示：

<template>
  <div>
    <button @click="toggleSearch">{{ isSearchVisible ? 'Hide' : 'Show' }} Search</button>

    <transition name="fade">
      <div v-show="isSearchVisible">
        <input v-model="searchTerm" @input="search">
        <div v-if="searchResults.length">
          <ul>
            <li v-for="result in searchResults" :key="result.id">
              {{ result.name }}
            </li>
          </ul>
        </div>
        <div v-else-if="searchTerm && !searchResults.length">
          No results found
        </div>
      </div>
    </transition>
  </div>
</template>

<script>
export default {
  data() {
    return {
      isSearchVisible: false,
      searchTerm: '',
      searchResults: [],
      items: [
        { id: 1, name: 'Apple' },
        { id: 2, name: 'Banana' },
        { id: 3, name: 'Orange' }
      ]
    }
  },
  methods: {
    toggleSearch() {
      this.isSearchVisible = !this.isSearchVisible
      if (!this.isSearchVisible) {
        this.searchTerm = ''
        this.searchResults = []
      }
    },
    search() {
      if (!this.searchTerm) {
        this.searchResults = []
        return
      }
      const term = this.searchTerm.toLowerCase()
      this.searchResults = this.items.filter(item => 
        item.name.toLowerCase().includes(term)
      )
    }
  }
}
</script>

使用第三方库增强功能

对于更复杂的需求，可以结合第三方库如Fuse.js实现模糊搜索：

import Fuse from 'fuse.js'

// 在methods中添加
advancedSearch() {
  const options = {
    keys: ['name'],
    threshold: 0.4
  }
  const fuse = new Fuse(this.items, options)
  this.searchResults = this.searchTerm 
    ? fuse.search(this.searchTerm).map(r => r.item)
    : []
}

响应式设计考虑

确保搜索组件在不同屏幕尺寸下表现良好：

@media (max-width: 768px) {
  .search-container {
    width: 100%;
  }
  input[type="text"] {
    width: calc(100% - 20px);
  }
}

键盘快捷键支持

添加键盘快捷键提升用户体验：

mounted() {
  window.addEventListener('keydown', this.handleKeyPress)
},
beforeDestroy() {
  window.removeEventListener('keydown', this.handleKeyPress)
},
methods: {
  handleKeyPress(e) {
    if (e.ctrlKey && e.key === 'k') {
      e.preventDefault()
      this.toggleSearch()
      if (this.isSearchVisible) {
        this.$nextTick(() => {
          this.$refs.searchInput.focus()
        })
      }
    }
  }
}

以上实现方式可根据具体项目需求进行调整和组合，创建适合的折叠搜索功能。