Vue.js组件父事件 [英] Vue.js component parent event

问题描述

我想知道为什么我的代码无法正常工作.我有一个事件离开"，应该在模糊时调用.组件显示正确，但是当我离开输入时，将不会触发该事件.

im wondering why my code isn't working. I have an event 'leave' which should be called on blur. The components are displayed properly but when i leave the inputs the event wont be triggered.

Vue.component('text-input', {
		props:['args'],
		template: '<input :id="args.id" :type="args.type"/>'
})

App = new Vue({
		el : '#app',
		data: {
			inputs : [
				{ id : 'nickname', type : 'text'},
				{ id : 'email' , type:'email'},	
			]
		},
		methods : {
			leave : function(event) {
				
			var id = $(event.target).attr('id');
		  console.log('left object ' + id);
	  }
  }
})
  

<div id='app'>
  <div class="form-group">
    <text-input 
      class="form-control"
      v-for="input in inputs"
      v-bind:args="input"
      v-bind:key="input.id"
      v-model="input.id"
      v-on:blur="leave"
      />
  </div>
</div>

感谢您的帮助:)

推荐答案

您的< text-input> 组件需要转发(re-

Your <text-input> component needs to forward (re-emit) the blur event from the inner <input> element:

// text-input
template: `<input @blur="$emit('blur')">`

然后，< text-input> 的父母可以接收它:

Then, <text-input>'s parent could receive it:

// parent of text-input
<text-input @blur="leave" />

Vue.component('text-input', {
		props:['args'],
		template: `<input :id="args.id" :type="args.type" @blur="$emit('blur', $event)"/>`
})

new Vue({
  el: '#app',
  data() {
    return {
      inputs: [
        {id: 1},
        {id: 2},
      ] 
    }
  },
  methods: {
    leave(e) {
      console.log('leave', e.target.id)
    }
  }
})

<script src="https://unpkg.com/vue@2.5.16"></script>

<div id="app">
  <div class="form-group">
    <text-input 
      class="form-control"
      v-for="input in inputs"
      v-bind:args="input"
      v-bind:key="input.id"
      v-model="input.id"
      v-on:blur="leave"
      />
  </div>
</div>

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