之前也写过这个小组件，最近遇到select下加搜索的功能，所以稍微完善一下。
效果图：
子组件 DROPDOWN.VUE
<template>
<div class="vue-dropdown default-theme">
<div class="cur-name" :class="isShow ? 'show':''" @click="isShow =! isShow">{{itemlist.cur.name}}</div>
<div class="list-and-search" :class="isShow?'on':''">
<div class="search-module clearfix" v-show="isNeedSearch">
<input class="search-text"
@keyup='search($event)' :placeholder="placeholder" />
</div>
<ul class="list-module">
<li v-for ="(item,index) in datalist" @click="selectToggle(item)"
:key="index">
<span class="list-item-text">{{item.name}}</span>
</li>
</ul>
<div class="tip-nodata" v-show="isNeedSearch && datalist.length == 0">{{nodatatext}}</div>
</div>
</div>
</template><script>
export default {
data(){
return {
datalist:[],
isShow:false
}
},
props:{
'itemlist':Object,//父组件传来的数据
'placeholder':{
type:String,
default: '搜索' //input placeholder的默认值
},
'isNeedSearch':{ //是否需要搜索框
type:Boolean,
default: false
},
'nodatatext':{
type:String,
default: '未找到结果' //没有搜索到时的文本提示
}
},
created(){
this.datalist = this.itemlist.data;
//点击组件以外的地方，收起
document.addEventListener('click', (e) => {
if (!this.$el.contains(e.target)){
this.isShow = false;
}
}, false)
},
methods:{
selectToggle(data){
this.itemlist.cur.name = data.name;
this.isShow = false;
this.$emit('item-click',data);
},
search(e){
let searchvalue = e.currentTarget.value;
this.datalist = this.itemlist.data.filter((item,index,arr)=>{
return item.name.indexOf(searchvalue) != -1;
});
}
}
}
</script>
<style lang="less" scoped>
.list-and-search{
background: #fff;
border: 1px solid #ccc;
display: none;
&.on{
display: block;
}
}
.cur-name{
height: 32px;
line-height: 32px;
text-indent: 10px;
position: relative;
color: #777;
&:after{
position: absolute;
right: 9px;
top: 13px;
content: " ";
width: 0;
height: 0;
border-right: 6px solid transparent;
border-top: 6px solid #7b7b7b;
border-left: 6px solid transparent;
border-bottom: 6px solid transparent;
}
&.show{
&:after{
right: 9px;
top: 6px;
