Handle Bootstrap modal hide event in Vue JS

Question

Is there a decent way in Vue (2) to handle a Bootstrap (3) modal hide-event?

I found this as a JQuery way but I can\'t figure out how to capture this event in Vue:

Answer 1

This may be late but another way if you are using a custom modal component (Modal.vue) you have created is to

1. create a method in mounted to catch the event of closure (doesn't have to be the same name as below)

    mounted: function(){
        this.triggerHidden();
    }

2. create the method

    methods: {
       triggerHidden: function(){
           var self = this;
           if( $('#getModal').length ){
               $('#getModal').on('hidden.bs.modal', function(){
                  //catch the native bootstrap close event and trigger yours
                  self.#emit('modal-close');
               });
           }
        }
    }

3. now call use your custom event with your custom/reusable modal component

   <custom-modal @modal-close="doSomething"></custom-modal> The method doSomething will be called when the modal closes. You can also use the approach to hijack the other jquery event so its a little more manageable.

Answer 2

Please see https://bootstrap-vue.js.org/docs/components/modal#overview There you can find event "hide" or "hidden" So you can bind this event:

<b-modal ref="someModal" @hide="doSometing">

Answer 3

Bootstrap uses JQuery to trigger the custom event hidden.bs.modal so it is not easily caught by Vue (which I believe uses native events under the hood).

Since you have to have JQuery on a the page to use Bootstrap's native modal, just use JQuery to catch it. Assuming you add a ref="vuemodal" to your Bootstrap modal you can do something like this.

new Vue({
  el:"#app",
  data:{
  },
  methods:{
    doSomethingOnHidden(){
      //do something
    }
  },
  mounted(){
    $(this.$refs.vuemodal).on("hidden.bs.modal", this.doSomethingOnHidden)
  }
})

Working example.

Answer 4

If working with bootstrap-vue then below code snippet will be helpful:

export default {
  mounted() {
    this.$root.$on('bv::modal::hide', (bvEvent, modalId) => {
      console.log('Modal is about to be shown', bvEvent, modalId)
    })
  }
}

for other events please refer to the official docs.

Answer 5

One option is to tie it to a variable:

data: function(){
  return {
       showModal: false
        //starts as false.  Set as true when modal opens. Set as false on close, which triggers the watch function.
},
watch: {
  showModal: function(){
    if(this.showModal == false){
     // do something
  },
}

HTML

<button id="show-modal" @click="showModal = true">Show Modal</button>

 //later if using a component
<modal v-if="showModal" @close="showModal = false">

 // or alternatively in the bootstrap structure
<div class="modal-footer">
     <button type="button" class="btn btn-default" data-dismiss="modal" @click="showModal = false">Close</button>
</div>