Managing Emitted Events in Vue.js Components within Components: A Guide

I have created a Toolbar Item component as follows:

<template>
  <div
    class="flex cursor-pointer items-center justify-center rounded-full border-2 border-gray-300 p-1 shadow-sm transition-all duration-300 hover:scale-110 hover:bg-black hover:text-white"
    @click="$emit('event')"
    :class="isActive ? 'bg-black text-white' : ''"
  >
    <Icon @click="setActive()" :icon="icon" />
  </div>
</template>
<script setup>
import { Icon } from '@iconify/vue'
import { defineProps, defineEmits } from 'vue'
import { ref } from 'vue'
const props = defineProps({
  icon: String
})
const emits = defineEmits({
  event: String
})
const isActive = ref(false)
function setActive() {
  isActive.value = !isActive.value
  console.log(isActive.value)
}
</script>

<style scoped></style>

This component is nested inside a Toolbar parent component:

<template>
  <div class="flex gap-2 rounded-3xl border-2 border-gray-300 p-2 shadow-md">
    <TipTapToolbarItem icon="ooui:bold-b"></TipTapToolbarItem>
    <TipTapToolbarItem icon="clarity:italic-line"></TipTapToolbarItem>
    <TipTapToolbarItem icon="fa-solid:strikethrough"></TipTapToolbarItem>
    <TipTapToolbarItem icon="mingcute:heading-1-fill"></TipTapToolbarItem>
    <TipTapToolbarItem icon="mingcute:code-fill"></TipTapToolbarItem>
    <TipTapToolbarItem icon="tabler:blockquote"></TipTapToolbarItem>
    <TipTapToolbarItem icon="octicon:horizontal-rule-16"></TipTapToolbarItem>
  </div>
</template>
<script setup>
import TipTapToolbarItem from './TipTapToolbarItem.vue'
</script>

<style scoped></style>

    I am aware that v-for can be used...
    and then the Toolbar is utilized

<template>
  <TipTapToolbar></TipTapToolbar>
  <editor-content class="h-[200px] w-[200px] bg-blue-500" placeholder="tiptap" :editor="editor" />
</template>

The hierarchy is as follows: ToolbarItem -> Toolbar -> EditorCompontn

I am wondering how to handle emits in this structure where the Toolbar Item component is a child of Toolbar which in turn is a child of a component where it is implemented. Each item requires a different function...

I am considering using the global store, but are there any other alternatives?

Answer №1

Uncertain about the flow of data, but it seems like you are missing the "listener" part in this parent-child communication.

For more information, check out the documentation: https://vuejs.org/guide/components/events.html

When ToolbarItem emits an event with the name event (consider changing it to something more descriptive), make sure to add a listener for it in the parent component and specify the method to be executed when the event occurs...

For example:

<TipTapToolbarItem
  icon="ooui:bold-b"
  @event="someMethod()"
/>

If simple parent-child communication is all that's needed, then using emits and props is sufficient (unless you're okay with tightly coupling both components together). However, for more complex scenarios, consider using a state management solution like probably Pinia at this time...

If the issue persists, try installing Vue.js Devtools to inspect what events are being emitted and how they are being handled...

Answer №2

If you want to streamline event handling in Vue, consider emitting and listening to events using the root element. This approach can help avoid emitting events through nested child components until they reach the parent component. Here's an example tailored to your scenario:

Child Component

<template>
  <div
    class="flex cursor-pointer items-center justify-center rounded-full border-2 border-gray-300 p-1 shadow-sm transition-all duration-300 hover:scale-110 hover:bg-black hover:text-white"
    @click="$root.$emit('event')"
    :class="isActive ? 'bg-black text-white' : ''"
  >
    <Icon @click="setActive()" :icon="icon" />
  </div>
</template>

Top Level Parent Component

<script>
export default {
  mounted() {
    this.$root.$on('event', (name) => {
      // Perform actions here...
    })
  }
}
</script>

Alternatively, you can use a simple chained emit for straightforward event propagation.

Toolbar Item

<div
    class="flex cursor-pointer items-center justify-center rounded-full border-2 border-gray-300 p-1 shadow-sm transition-all duration-300 hover:scale-110 hover:bg-black hover:text-white"
    @click="$emit('event')"
    :class="isActive ? 'bg-black text-white' : ''"
  >
    <Icon @click="setActive()" :icon="icon" />
  </div>

TipTapToolbar

<TipTapToolbarItem icon="ooui:bold-b" @event='$emit('event')></TipTapToolbarItem>

EditorComponent

<TipTapToolbar @event='callMyFunction'></TipTapToolbar>

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Looking for a way to assign customized thumbnails to images in react-responsive-carousel and react-image-magnifiers?

I am currently working on a product viewer using react-responsive-carousel and react-image-magnifiers. Following an example from this GitHub repository, I encountered an issue with mapping custom thumbnails correctly. Although hard-coding the array works f ...

The function slice is not a method of _co

I'm attempting to showcase the failedjobs array<any> data in a reverse order <ion-item *ngFor="let failjob of failedjobs.slice().reverse()"> An issue arises as I encounter this error ERROR TypeError: _co.failedjobs.slice is not a fu ...

Detecting coordinates (x, y) on a canvas

I'm currently working on a mini-game and encountering an issue with the player movement around the green square. My character seems to be unable to move past the x, y coordinates of the square, even though it can approach it closely. I would really ap ...

Differences between visibility property manipulation in HTML and JS

One issue I am facing is that when I add a hidden property to a button in the HTML, it remains invisible. <button id="proceed_to_next_question" hidden> Next Question </button> However, if I remove the hidden property and include the following ...

What is the reasoning behind declaring certain variables on the same line as others, while most are declared individually on separate lines?

I've taken on the challenge of learning JS by myself and decided to build a Blackjack game. While following a helpful walkthrough online, I encountered some confusion. On the website, they start by declaring Global variables: var deck; var burnCard; ...

The 'RouterLink' JSX element type is missing any construct or call signatures

While researching this issue on the internet and Stack Overflow, I've noticed a common theme with problems related to React. An example can be found here. However, I am working with Vue and encountering errors in Vue's own components within a new ...

What advantages come from destructuring in conjunction with require statements?

When utilizing require, is there a performance advantage or disadvantage to importing the entire module versus only importing selected functions? It's my understanding that when using require to import modules (as opposed to using import), compilers ...

Steer clear of 405 errors by implementing AJAX in combination with Flask and JINJA templ

Hey there, I'm fairly new to backend work so please bear with me. I've been doing some research but haven't found the answer yet. Currently, I'm working on an application that fetches search results from a 3rd party API. I'm tryi ...

Switching the background color of alternating divs in reverse order: a step-by-step guide

I am looking to alternate the background color of divs between odd and even, with the last div being grey and the second to last div being green. I have tried using the odd/even classes in CSS, but it did not work as expected. .main{ width:500px; height ...

Exploring the power of VueJs through chaining actions and promises

Within my component, I have two actions set to trigger upon mounting. These actions individually fetch data from the backend and require calling mutations. The issue arises when the second mutation is dependent on the result of the first call. It's cr ...

Simple method for converting pixel values to em units

I'm searching for a simple method to incorporate a line of code into one of my plugins in order to convert specific pixel values into em values. My project's layout requires the use of ems, and I'd prefer not to rely on external plugins for ...

Using ngTable within an AngularJS application

While working on my angularjs application, I encountered an issue with ngtable during the grunt build process. It seems that the references are missing, resulting in the following error: Uncaught Error: [$injector:modulerr] Failed to instantiate module pa ...

Transformation effect when hovering over an SVG polygon as it transitions between two states

const createTransitionEffect = (navLI, startCoord, endCoord) => { const changeRate = 0.1; let currentY = startCoord; const animateChange = () => { if (currentY !== endCoord) { currentY += (endCoord - startCoord) * cha ...

Is Ajax still a popular choice for developing web applications?

Currently, I am developing a comprehensive ajax-based web application and have been investigating various frameworks for SEO optimization and history tracking. During my research, I came across an interesting framework at Although it seems promising, I no ...

Enhanced Slider Display featuring Multiple Posts for Improved Performance

My Sample Page features a slider that displays over 200 posts, each containing 5 images. However, the slider loads all the images at once, causing my page speed to be very slow. I am looking for an optimized way to display the slider without compromising l ...

Having an issue with discord.js and node.js modules not exporting correctly? The returned statement is not functioning as

Trying to retrieve specific messages from a channel to gather information about registered 'clans' has been quite challenging for me. I am able to fetch the channel, filter and loop through the messages, but strangely, I cannot return the fetched ...

What is the best method for eliminating the initial character in every line of a textarea?

The desired output should display as LUNG,KIDNEY,SKELETON>J169>U and E, CREATININE:no instead of >LUNG,KIDNEY,SKELETON>J169>U and E, CREATININE:no. Is there a way to achieve this using JavaScript? Specifically, the ">" character at the beginnin ...

Angular's method of one-way binding to an object

Seeking a method for one-way (not one time) binding between an attribute on a directive without utilizing attrs.$observe. Currently considering binding via &attr and invoking the variables in the template like {{attr()}}. app.controller('MainCtrl ...

Vuejs tab not displaying images

I have created a method called "numberMatch" that adds a gif, stored in a variable, to a tab when clicked. The method is functioning correctly, but when I try to display the gif on the page by calling the tab in the template, it only shows the path of th ...

Determining the page's coordinates in ColdFusion

Whenever I use iframes or frames on older websites, I implement an additional security measure using a JavaScript function: <SCRIPT LANGUAGE="JavaScript1.1"> if (top == self) self.location.href = "../index.cfm"; </SCRIPT> I also include an ...