Open a Vuetify dialog from a component template in VueJS

I’m using the VueJS Vuetify framework and I need to open a dialog – that gets imported as a component template – from another template. Once the Menu button in App.vue got clicked, the Modal should open. Here is my setup:

App.vue = navigation template with Menu button
Modal.vue = Modal template, imported as global in main.js

main.js

import Modal from './components/Modal.vue'
Vue.component('modal', Modal)

Modal.vue Template:

<template>
  <v-layout row justify-center>
    <v-btn color="primary" dark @click.native.stop="dialog = true">Open Dialog</v-btn>
    <v-dialog v-model="dialog" max-width="290">
      <v-card>
        <v-card-title class="headline">Use Google's location service?</v-card-title>
        <v-card-text>Let Google help apps determine location. This means sending anonymous location data to Google, even when no apps are running.</v-card-text>
        <v-card-actions>
          <v-spacer></v-spacer>
          <v-btn color="green darken-1" flat="flat" @click.native="dialog = false">Disagree</v-btn>
          <v-btn color="green darken-1" flat="flat" @click.native="dialog = false">Agree</v-btn>
        </v-card-actions>
      </v-card>
    </v-dialog>
  </v-layout>
</template>
<script>
  export default {
    data () {
      return {
        dialog: false
      }
    }
  }
</script>

How to open the dialog?

Answer

You can open the dialog using custom events and using an event bus for non parent-child communication.

If your application gets a bit more complex I recommend you use Vuex for state management.

Event bus solution:

In your main.js or in a new file create and export a new Vue instance :

export const bus = new Vue()

In app.vue import the busand emit the event:

<template>
  <div>
    <button @click.prevent="openMyDialog()">my button</button>
  </div>
</template>

<script>
  import {bus} from '../main' // import the bus from main.js or new file
  export default {
    methods: {
      openMyDialog () {
        bus.$emit('dialog', true) // emit the event to the bus
      }
    }
  }
</script>

In modal.vue also import the bus and listen for the event in the created hook:

<script>
  import {bus} from '../main'    
  export default {
    created () {
      var vm = this
      bus.$on('dialog', function (value) {
        vm.dialog = value
      })
    }
  }
</script>

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Answer