【java】vue v-for弹出框,怎么实现点击弹出框以外的地方，隐藏弹出框，如下图和代码

问题

点击黑色按钮，弹出框显示
点击弹出框以外的地方，隐藏弹出框

图片

【java】vue v-for弹出框,怎么实现点击弹出框以外的地方，隐藏弹出框，如下图和代码

代码，可以直接运行

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Vue 测试实例 - 菜鸟教程(runoob.com)</title>
<script src="https://cdn.bootcss.com/vue/2.4.2/vue.min.js"></script>
</head>
<body>
<div id="app">
<ul>
<li v-for="(item,index) in data1">
<span @click="toggle(index)"></span>
<span>{{item.id}}</span>--
<span>{{item.name}}</span>
<div v-show="(cIndex == index) && dialog">dialog</div>
</li>
</ul>
</div>
<script>
new Vue({
el: '#app',
data: {
dialog:false,
cIndex: -1,
data1: [
{ id: 1, name: "a" },
{ id: 2, name: "b" },
{ id: 3, name: "c" },
{ id: 4, name: "d" },
]
},
methods:{
toggle(index){
this.cIndex = index;
this.dialog = !this.dialog;
}
}
})
</script>
</body>
</html>
<style>
ul,
li {
list-style: none;
}
li {
position: relative;
height: 40px;
line-height: 40px;
border-bottom: 1px solid #000;
}
li span:first-child {
display: inline-block;
width: 10px;
height: 10px;
background-color: #000;
}
li div{
position: absolute;
left: 20px;
top: 0;
z-index: 1000;
width: 100px;
height: 100px;
border: 1px solid red;
background-color: #fff;
}
</style>

回答

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>Vue 测试实例 - 菜鸟教程(runoob.com)</title>
    <script src="https://cdn.bootcss.com/vue/2.4.2/vue.min.js"></script>
</head>
<body>
    <div id="app">
        <ul>
            <li v-for="(item,index) in data1">
                <span @click.stop="toggle(index)"></span>
                <span>{{item.id}}</span>--
                <span>{{item.name}}</span>
                <div v-show="(cIndex == index) && dialog" class="modalDiaLog">dialog</div>
            </li>
        </ul>
    </div>
    <script>
        new Vue({
            el: '#app',
            data: {
                dialog:false,
                cIndex: -1,
                data1: [
                    { id: 1, name: "a" },
                    { id: 2, name: "b" },
                    { id: 3, name: "c" },
                    { id: 4, name: "d" },
                ]
            },
            mounted(){
                document.addEventListener('click', (e)=> {
                    if (e.target.className != 'modalDiaLog') {
                        this.dialog = false;
                    }
                })
            },
            methods:{
                toggle(index){
                    this.cIndex = index;
                    this.dialog = !this.dialog;
                }
            }
        })
    </script>
</body>
</html>
<style>
    ul,
    li {
        list-style: none;
    }
    li {
        position: relative;
        height: 40px;
        line-height: 40px;
        border-bottom: 1px solid #000;
    }
    li span:first-child {
        display: inline-block;
        width: 10px;
        height: 10px;
        background-color: #000;
    }
    li div{
        position: absolute;
        left: 20px;
        top: 0;
        z-index: 1000;
        width: 100px;
        height: 100px;
        border: 1px solid red;
        background-color: #fff;
    }
</style>

弹窗之后, document 监听点击事件 关闭 dialog

document监听点击事件
e.target!=弹窗 的时候，关闭

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