Issues with event registration in reusable Vue components are not functioning as expected

While working on my website, I found myself using buttons and dropdowns frequently. To streamline this process, I decided to create a custom component called BlueButton.vue for specific features. This way, I can avoid redundant styling declarations. Here's an example of the BlueButton component:

<template>
    <v-btn dark color="blue" class="blue-btn">
        <slot>
            <!--  -->
        </slot>
    </v-btn>
</template>

Now, I'm attempting to implement this custom component within another form component named TheForm.vue:

<template>
    <blue-button @click="showTheDialog = false" v-if="thebutton(btn)">Cancel</blue-button>
</template>
<script>
import BlueButton from '../components/BlueButton'

export default {

    props: {
        //
    },

    components: {
        'blue-button' : BlueButton
    },
</script>

However, even though the button in TheForm.vue appears correctly styled, the events such as @click and v-if seem to not be functioning (i.e. clicking the button doesn't trigger any action - there are no error messages either).

How can I troubleshoot this issue to ensure that props and events operate as intended?

Answer №1

When you enclose a component, events won't automatically propagate upwards.

To pass them on, you have two options. You can either do it individually like this:

<v-btn dark color="blue" class="blue-btn" @click="$emit('click', $event)">

Or you can pass on all events collectively like this:

<v-btn dark color="blue" class="blue-btn" v-on="$listeners">

Take a look here for more information:

https://v2.vuejs.org/v2/api/#vm-listeners

The directive v-if should be functioning properly without any extra adjustments needed.

If you need to pass props, you would follow a similar process as with events. You can either pass them individually or all at once. To pass all at once:

<v-btn dark color="blue" class="blue-btn" v-bind="$attrs">

Keep in mind that $attrs will only contain attributes that are not defined as props. For those defined as props, they will need to be passed separately.

For reference, check out:

https://v2.vuejs.org/v2/api/#vm-attrs

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