When the dialog is opened, automatically set the focus on the text field inside

I am facing an issue with focusing a custom text field when opening a dialog. I have tried using vue.js refs:

Code:

<v-app id="app">
  <v-row align="center">
    <v-col class="text-center" cols="12">
      <v-btn color="primary" @click="openDialog()">Open dialog</v-btn>
    </v-col>
  </v-row>
  <v-dialog v-model="dialog">
   <v-card>
    <v-card-title
      class="headline grey lighten-2"
      primary-title
    >
      Dialog
    </v-card-title>
    <v-card-text>
      <v-row>
        <v-col cols="6" class="ml-2">
            <v-text-field
              ref="name"
              placeholder="Enter your name..."
              type="text"
              solo
              flat
              outlined
            ></v-text-field>
            <v-btn 
              color="indigo" 
              dark 
              @click = "setFocusName()"
             >Set focus</v-btn>
        </v-col>
      </v-row>
    </v-card-text>
   </v-card>
  </v-dialog>
</v-app>

Javascript:

new Vue({
  el: '#app',
  vuetify: new Vuetify(),
  data () {
    return {
      dialog: false
    }
  },
  methods: {    
    setFocusName() {
      this.$refs.name.focus();
    },

    openDialog() {
      this.dialog = !this.dialog  
      this.setFocusName()
    }
  }
});

Upon clicking the open dialog button, the text field does not get focused. Here is my complete code on codepen

How can I ensure that the text field gets focused correctly when the dialog is opened?

Answer №1

Your code is encountering an issue due to attempting to access the $ref before it has been rendered. Here is a sandbox containing the corrected code: https://codepen.io/Djip/pen/ZEYezzm?editors=1011

To fix the bug, I introduced a setTimeout function to focus after 0.2 seconds from opening the dialog. Initially, I attempted using $nextTick, but it did not suffice - you can try reducing the timer as much as possible.

setFocusName() {
  this.$refs.name.focus();
},

openDialog() {
  this.dialog = !this.dialog  
  setTimeout(() => {
    this.setFocusName()
  }, 200)
}

Answer №2

To ensure that the focus is set on the v-text-field within a dialog when it is opened, simply include the autofocus property:

<v-text-field
              autofocus
              placeholder="Enter your name..."
              type="text"
              solo
              flat
              outlined
            ></v-text-field>

Answer №3

Within a watcher function for the dialog property, I implemented logic to set focus on an input element when the dialog is toggled.

watch: {
   dialog: function(value) {
      if (value) {
        setTimeout(() => {
          this.$refs.inputrefname.$refs.input.focus();
       });
     }
   }
}

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