Emit event from content in slot to parent

Slots are compiled against the parent component scope, therefore events you emit from the slot will only be received by the component the template belongs to.

If you want interaction between the carousel and slides, you can use a scoped slot instead which allows you to expose data and methods from the carousel to the slot.

Assuming your carousel component has next and close methods:

Carousel template:

<div class="carousel">
  <div class="slides" ref="slides">
    <slot :next="next" :close="close"></slot>
  </div> 
  <footer>
    <!-- Other carousel controls like arrows, indicators etc go here -->
  </footer>
</div>

Carousel example usage:

<my-carousel v-slot="scope">
  <div class="slide">
    <button @click="scope.next">Next</button>
  </div>

  <div class="slide">
    <button @click="scope.close">Close</button>
  </div>
</my-carousel>

My Solution

Just create an event listener component (e.g. "EventListener") and all it does is render the default slot like so:

EventListener.vue

export default {
    name: 'EventListener'
    render() {
        return this.$slots.default;
    }
}

Now use this <event-listener> component and wrap it on your <slot>. Child components inside the slot should emit events to the parent like so: this.$parent.$emit('myevent').

Attach your custom events to the <event-listener @myevent="handleEvent"> component.

Carousel template:

<div class="carousel">
  <event-listener @next="handleNext" @close="handleClose">
     <div class="slides" ref="slides">
       <slot></slot>
     </div> 
  </event-listener>
  <footer>
   <!-- other carousel controls like arrows, indicators etc go here -->
  </footer>
</div>

Carousel example:

<my-carousel>
  <div class="slide">
    <button @click="$parent.$emit('next')">Next</button>
  </div>

  </div class="slide">
    <button @click="$parent.$emit('close')">Close</button>
  </div>
</my-carousel>

Note: The <event-listener> component must only have one child vnode. It cannot be the <slot>, so we just wrapped it on the div instead.