检测元素外的点击 [英] Detect click outside element

问题描述

如何检测元素外的点击?我正在使用 Vue.js，所以它会在我的模板元素之外.我知道如何在 Vanilla JS 中执行此操作，但我不确定在使用 Vue.js 时是否有更合适的方法?

这是 Vanilla JS 的解决方案:Javascript 检测 div 之外的点击事件

我想我可以使用更好的方式来访问元素?

解决方案

请注意此解决方案仅适用于 Vue 1.

可以通过设置一次自定义指令很好地解决:

Vue.directive('click-outside', {绑定(){this.event = 事件 =>this.vm.$emit(this.expression, 事件)this.el.addEventListener('click', this.stopProp)document.body.addEventListener('click', this.event)},解除绑定(){this.el.removeEventListener('click', this.stopProp)document.body.removeEventListener('click', this.event)},stopProp(event) { event.stopPropagation() }})

用法:

部分内容

在组件中:

事件:{nameOfCustomEventToCall:函数(事件){//做点什么 - 可能隐藏下拉菜单/模式等.}}

JSFiddle 上的工作演示以及有关警告的附加信息:

https://jsfiddle.net/Linusborg/yzm8t8jq/

How can I detect a click outside my element? I'm using Vue.js so it's gonna be outside my templates element. I know how to do it in Vanilla JS, but I'm not sure if there's a more proper way to do it, when I'm using Vue.js?

This is the solution for Vanilla JS: Javascript Detect Click event outside of div

I guess I can use a better way to access the element?

解决方案

Keep in attention that this solution only works with Vue 1.

Can be solved nicely by setting up a custom directive once:

Vue.directive('click-outside', {
  bind () {
      this.event = event => this.vm.$emit(this.expression, event)
      this.el.addEventListener('click', this.stopProp)
      document.body.addEventListener('click', this.event)
  },   
  unbind() {
    this.el.removeEventListener('click', this.stopProp)
    document.body.removeEventListener('click', this.event)
  },

  stopProp(event) { event.stopPropagation() }
})

Usage:

<div v-click-outside="nameOfCustomEventToCall">
  Some content
</div>

In the component:

events: {
  nameOfCustomEventToCall: function (event) {
    // do something - probably hide the dropdown menu / modal etc.
  }
}

Working Demo on JSFiddle with additional info about caveats:

https://jsfiddle.net/Linusborg/yzm8t8jq/

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