Click event handling in child components with Vue 2

I have a basic component with the following structure:

<template>
    <span @click="clickHandler" :class="className"></span>
</template>
<script>
    export default {
        name: "PlusIconComponent",
        props: {
            gender: {
                type: String,
                required: true
            },
            part: {
                type: String,
                required: true
            },
            opened: {
                type: Boolean,
                required: true
            }
        },
        data(){
            return {}
        },
        methods: {
            clickHandler(){
                console.log('clicked', this.part)
            }
        },
        computed: {
            className(){
                let classes = ['plus-icon', this.part, this.gender]
                if(this.opened){
                    classes.push('opened')
                }
                return classes.join(' ')                
            }
        }        

    }
</script>

This particular component is nested within a root component that dynamically displays different child components based on certain conditions. One of these child components includes the PlusIconComponent but the click handler does not seem to be functioning as expected. Interestingly, moving the event handling up one level in the components hierarchy also does not solve the issue.

The behavior is odd considering that I have successfully used events in child components previously.

Furthermore, this component is being rendered in a loop like so:

<PlusIconComponent :key="part" v-for="part in parts" :part="part" :gender="gender" :opened="(showPart===part)" />

I have also tried using the @click.native modifier for the component, but unfortunately, it did not produce the desired result. Any insights or suggestions would be greatly appreciated. Thank you.

Answer №1

When working within the PlusIconComponent, it is important to utilize the clickHandler method to emit an event to the parent component with specific arguments. Here's an example:

clickHandler(){
   this.$emit('clicked', this.part)
}

Subsequently, in the parent component, be sure to capture this event using a handler that bears the same name as the one emitted by the child:

<PlusIconComponent :key="part" v-for="part in parts" :part="part" :gender="gender" :opened="(showPart===part)" @clicked="parentsHandler" />

To finalize the communication between child and parent components, you can define the desired behavior in the parent like so:

parentsHandler(part) {
   console.log('parent says: ', part)
}

This methodology illustrates how a child component can effectively communicate with its parent. For more details, refer to this link.

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