I am having trouble figuring out how to bind my handleDelete method.
The way I have it structured is the user clicks the plus button then data objects get stored in an array on the window object. Then render is called on the SelectedProducts component that renders a card that has the button I am trying to bind the handleDelete method to.
If you run the code you can see what I have so far.
Maybe this is not the right approach just trying to do it with out adding a library.
Still trying to wrap my head around which lifecycle methods I need or a custom event?
class SelectedProducts extends HTMLElement {
constructor() {
super();
this.mockData = [
{ id: 1, name: 'name-1', qty: 1 },
{ id: 2, name: 'name-2', qty: 1 },
{ id: 2, name: 'name-1', qty: 2 },
];
}
handleDelete(e) {
e.preventDefault();
console.log('called handleDelete');
}
connectedCallback() {
this.querySelector('button').addEventListener('click', this.handleDelete.bind(this));
}
attributeChangedCallback(attrName, oldValue, newValue) {
console.log('attributeChange called');
this.handleDelete(e);
}
static get observedAttributes() {
return ['data-id'];
}
disconnectedCallback() {
console.log('disconnectedCallback ran');
}
render() {
this.mockData.forEach((item, index) => {
this.innerHTML += `
<div style="display:flex; align-items: center; background-color:white; padding:15px; ">
<button data-id="${item.id}" class="delete-btn">
Delete me
</button>
</div>
`;
});
}
handleDelete(e) {
e.preventDefault();
alert('Called Handle delete');
}
}
customElements.define('selected-products', SelectedProducts);
class ProductCard extends HTMLElement {
constructor() {
super();
this.attachShadow({
mode: 'open',
});
this.shadowRoot.innerHTML =
`<style>
::slotted(div){
color: #4B5563;
font-weight: 900;
text-align: center;
font-size: 20px;
}
</style>
` +
` <div style="background: white; margin-right: 15px;">
<slot name="button"></slot>
<slot name="img"></slot>
</div>
`;
}
}
customElements.define('product-card', ProductCard);
class SelectBtn extends HTMLElement {
constructor() {
super();
// This is called with render below
this.itemsPicked = document.querySelector('selected-products');
this.attachShadow({
mode: 'open',
});
this.shadowRoot.innerHTML = `
<button
aria-label="Select"
type="button"
class="pressed"
data-addbtn="add-btn"
>
+
</button>
`;
this.id = this.getAttribute('id');
this.name = this.getAttribute('name');
this.shadowRoot
.querySelectorAll('button')
.forEach((button) => button.addEventListener('click', this.handleSelect.bind(this)));
}
// Get data from attributes & store object in
// an array on window object
handleSelect(e) {
e.preventDefault();
this.itemsPicked.render();
}
}
customElements.define('select-button', SelectBtn);
<body>
<div style="display: flex; justify-content: center; align-items: center; background: lightblue; padding: 10px">
<product-card>
<div slot="button">
<select-button id="1" name="product name"></select-button>
</div>
<div slot="img">
<div style="height: 100px; width: 100px">Select Button</div>
</div>
</product-card>
<div>
<selected-products></selected-products>
</div>
</div>
<script src="app.js"></script>
<script>
window.selectedItems = {
items: [],
};
</script>
</body>
The way I solved this problem was not to attach an event listener to inner html itself. Instead I created another web component (delete-button) with and event listener and a method to handle the event. Any feedback would be super cool.
class DeleteButton extends HTMLElement {
constructor() {
super();
this.selectedProducts = document.querySelector('selected-products');
this.querySelectorAll('button').forEach((button) => button.addEventListener('click', this.handleDelete.bind(this)));
}
handleDelete(e) {
e.preventDefault();
alert('Delete button Event');
}
}
customElements.define('delete-button', DeleteButton);
class SelectedProducts extends HTMLElement {
constructor() {
super();
this.mockData = [
{ id: 1, name: 'name-1', qty: 1 },
{ id: 2, name: 'name-2', qty: 1 },
{ id: 2, name: 'name-1', qty: 2 },
];
}
render() {
this.mockData.forEach((item, index) => {
this.innerHTML += `
<div style="display:flex; align-items: center; background-color:white; padding:15px; ">
<delete-button>
<button data-id="${item.id}" class="delete-btn">
Delete me
</button>
</delete-button>
</div>
`;
});
}
handleDelete(e) {
e.preventDefault();
alert('Called Handle delete');
}
}
customElements.define('selected-products', SelectedProducts);
class ProductCard extends HTMLElement {
constructor() {
super();
this.attachShadow({
mode: 'open',
});
this.shadowRoot.innerHTML =
`<style>
::slotted(div){
color: #4B5563;
font-weight: 900;
text-align: center;
font-size: 20px;
}
</style>
` +
` <div style="background: white; margin-right: 15px;">
<slot name="button"></slot>
<slot name="img"></slot>
</div>
`;
}
}
customElements.define('product-card', ProductCard);
class SelectBtn extends HTMLElement {
constructor() {
super();
// This is called with render below
this.itemsPicked = document.querySelector('selected-products');
this.attachShadow({
mode: 'open',
});
this.shadowRoot.innerHTML = `
<button
aria-label="Select"
type="button"
class="pressed"
data-addbtn="add-btn"
>
+
</button>
`;
this.id = this.getAttribute('id');
this.name = this.getAttribute('name');
this.shadowRoot
.querySelectorAll('button')
.forEach((button) => button.addEventListener('click', this.handleSelect.bind(this)));
}
// Get data from attributes & store object in
// an array on window object
handleSelect(e) {
e.preventDefault();
this.itemsPicked.render();
}
}
customElements.define('select-button', SelectBtn);
<body>
<div style="display: flex; justify-content: center; align-items: center; background: lightblue; padding: 10px">
<product-card>
<div slot="button">
<select-button id="1" name="product name"></select-button>
</div>
<div slot="img">
<div style="height: 100px; width: 100px">Select Button</div>
</div>
</product-card>
<div>
<selected-products></selected-products>
</div>
</div>
<script src="app.js"></script>
<script>
window.selectedItems = {
items: [],
};
</script>
</body>
Related
I have this React component. Which renders a simple HTML. I have an event handler attached to an element. On clicking that particular element I want some CSS styles to change. For that I used the code below-
import React from 'react';
import './start.css';
class Start extends React.Component {
handleEvent() {
const login = document.querySelector('.login');
const start = document.querySelector('.start')
login.style.right = '0';
start.style.left = '-100vw';
}
render() {
return (
<section className = 'page start'>
<h1>Welcome To Our App</h1>
<button onClick = {this.handleEvent}>Next</button>
</section>
)
}
}
export default Start;
My question is in the handleEvent() is it appropriate to select the elements using Document and style the elements using .style. Is there any other "react-specific" way to do this?
class Test extends React.Component {
constructor(){
super();
this.state = {
black: true
}
}
changeColor(){
this.setState({black: !this.state.black})
}
render(){
let btn_class = this.state.black ? "blackButton" : "whiteButton";
return (
<div>
<button className={btn_class}
onClick={this.changeColor.bind(this)}>
Button
</button>
</div>
)
}
}
ReactDOM.render(<Test />, document.querySelector("#app"))
button{
width: 80px;
height: 40px;
margin: 15px;
}
.blackButton{
background-color: black;
color: white;
}
.whiteButton{
background-color: white;
color: black;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.6.1/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.6.1/umd/react-dom.production.min.js"></script>
<div id="app"></div>
first of all yes you can use document in react for that. But "react specific" style you be something like this:
<div id="app"></div>
In css file :
button{
width: 80px;
height: 40px;
margin: 15px;
}
.blackButton{
background-color: black;
color: white;
}
.whiteButton{
background-color: white;
color: black;
}
and finally a component :
class Test extends React.Component {
constructor(){
super();
this.state = {
black: true
}
}
changeColor(){
this.setState({black: !this.state.black})
}
render(){
let btn_class = this.state.black ? "blackButton" : "whiteButton";
return (
<div>
<button className={btn_class}
onClick={this.changeColor.bind(this)}>
Button
</button>
</div>
)
}
}
ReactDOM.render(<Test />, document.querySelector("#app"))
You can set a state to check whether the button has been clicked and change the class name
Similar approach can be used.
This is the React Specific way!
You can refer to React doc
https://reactjs.org/docs/faq-styling.html
import React from 'react';
import './start.css';
class Start extends React.Component {
constructor(props) {
super(props);
this.state = {hasButtonClicked : false};
}
handleEvent() {
this.setState({hasButtonClicked : true});
}
render() {
let clicked = this.state.hasButtonClicked;
return (
<section className = { clicked ? someCssClass :'page start'} >
<h1>Welcome To Our App</h1>
<button onClick = {this.handleEvent}>Next</button>
</section>
)
}
}
I need to list out a long name list inside my page while showing all names at first is not desirable.
So I try to add an expand more button on it.
However, using a button will keep the browser focus on that button after it's pressed, left the button position unchanged on the screen while the name was inserted before that button.
On the other hand, using any, not focusable element (eg. div with onclick function) will do the desired behavior but lost the accessibility at all. Making the "button" only clickable but not focusable.
How do I make the button flushed to list bottom like the snippet div block does? Or is there a better choice to expand the existing list?
const myArray = [
'Alex',
'Bob',
'Charlie',
'Dennis',
'Evan',
'Floron',
'Gorgious',
'Harris',
'Ivan',
'Jennis',
'Kurber',
'Lowrance',
]
const ExpandList = (props) => {
const [idx, setIdx] = React.useState(8)
const handleExpand = e => {
setIdx(idx + 1)
}
return <div className='demo'>
<h1>Name List</h1>
{myArray.slice(0,idx).map(
name => <p key={name}>{name}</p>
)}
<div>
<button onClick={handleExpand} children='Button Expand' className='pointer' />
<div onClick={handleExpand} className='pointer'>Div Expand</div>
</div>
</div>
}
ReactDOM.render(<ExpandList/>, document.getElementById('root'))
.demo>p {
display: block;
padding: 20px;
color: #666;
background: #3331;
}
.demo>div>div {
display: flex;
padding: 15px;
margin-left: auto;
color: #666;
background: #3331;
}
.pointer {
cursor: pointer;
}
.pointer:hover {
background-color: #6663;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.14.0/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.14.0/umd/react-dom.production.min.js"></script>
<div id='root' class='demo'>hello</div>
Removing focus from the button in the click handler is probably the most elegant approach: e.target.blur(). It will work on any HTML element, whether it is focusable or not (as with the div in your case).
const myArray = [
'Alex',
'Bob',
'Charlie',
'Dennis',
'Evan',
'Floron',
'Gorgious',
'Harris',
'Ivan',
'Jennis',
'Kurber',
'Lowrance',
]
const ExpandList = (props) => {
const [idx, setIdx] = React.useState(8)
const handleExpand = e => {
e.target.blur()
setIdx(idx + 1)
}
return <div className='demo'>
<h1>Name List</h1>
{myArray.slice(0,idx).map(
name => <p key={name}>{name}</p>
)}
<div>
<button onClick={handleExpand} children='Button Expand' className='pointer' />
<div onClick={handleExpand} className='pointer'>Div Expand</div>
</div>
</div>
}
ReactDOM.render(<ExpandList/>, document.getElementById('root'))
.demo>p {
display: block;
padding: 20px;
color: #666;
background: #3331;
}
.demo>div>div {
display: flex;
padding: 15px;
margin-left: auto;
color: #666;
background: #3331;
}
.pointer {
cursor: pointer;
}
.pointer:hover {
background-color: #6663;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.14.0/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.14.0/umd/react-dom.production.min.js"></script>
<div id='root' class='demo'>hello</div>
Inspired by #MiKo, temporally unmount the button after click and set a timeout to add it back seems to do the work. Since browser lose the focus on original expand button, this will keep content flush down without focusing the original button:
const ExpandList = (props) => {
const [idx, setIdx] = React.useState(8)
const [showBtn, setShowBtn] = React.useState(true)
const handleExpand = e => {
setShowBtn(false)
setIdx(idx + 1)
setTimeout(() => setShowBtn(true), 10)
}
return <div className='demo'>
<h1>Name List</h1>
{myArray.slice(0,idx).map(
name => <p key={name}>{name}</p>
)}
{showBtn?
<div>
<button onClick={handleExpand} children='Button Expand' className='pointer' />
<div onClick={handleExpand} className='pointer'>Div Expand</div>
</div> :
<div></div>
}
</div>
}
But I'm still looking a method that doesn't need to 'unmount' a thing which should be there all time.
I have made a form component (CreateDocument) in Nuxt. Inside this component i made also an autocomplete (AutoCompleteFilters).
When I hit enter inside the autocomplete component, also the CreateDocument is listening to the enter key. But I only want that a specific input field is listing to the enter key event.
This is the CreateDocument component:
<template>
<div>
<Notification :message="notification" v-if="notification"/>
<form method="post" #submit.prevent="createDocument">
<div class="create__document-new-document">
<div class="create__document-new-document-title">
<label>Titel</label>
<input
type="text"
class="input"
name="title"
v-model="title"
required
>
</div>
<div class="create__document-new-document-textarea">
<editor
apiKey="nothing"
v-model="text"
initialValue=""
:init="{
height: 750,
width: 1400
}"
>
</editor>
</div>
<div class="create__document-new-document-extra-info">
<div class="create__document-new-document-tags">
<label>Tags</label>
<AutoCompleteFilters/>
</div>
<div class="create__document-new-document-clients">
<label>Klant</label>
<input
type="text"
class="input"
name="client"
v-model="client"
required
>
</div>
</div>
<Button buttonText="save" />
</div>
</form>
</div>
</template>
<script>
import Notification from '~/components/Notification'
import Editor from '#tinymce/tinymce-vue'
import Button from "../Button";
import { mapGetters, mapActions } from 'vuex'
import AutoCompleteFilters from "./filters/AutoCompleteFilters";
export default {
computed: {
...mapGetters({
loggedInUser: 'loggedInUser',
})
},
middleware: 'auth',
components: {
Notification,
Button,
editor: Editor,
AutoCompleteFilters
},
data() {
return {
title: '',
text: '',
tags: '',
client: '',
notification: null,
}
},
methods: {
...mapActions({
create: 'document/create'
}),
createDocument () {
const documentData = {
title: this.title,
text: this.text,
tags: this.tags,
client: this.client,
userId: this.loggedInUser.userId
};
this.create(documentData).then((response) => {
this.notification = response;
this.title = '';
this.text = '';
this.tags = '';
this.client= '';
})
}
}
}
</script>
And this is the AutoCompleteFilters component:
<template>
<div class="autocomplete">
<input
type="text"
id="my-input"
#input="onChange"
v-model="search"
#keydown.down="onArrowDown"
#keydown.up="onArrowUp"
#keydown.enter="onEnter"
/>
<ul
v-show="isOpen"
class="autocomplete-results"
>
<li
v-for="result in results"
:key="results.id"
class="autocomplete-result"
#click="setResult(result.name)"
:class="{ 'is-active': results.indexOf(result) === arrowCounter }"
>
{{ result.name }}
</li>
</ul>
</div>
</template>
<script>
import {mapActions} from 'vuex'
export default {
data() {
return {
isOpen: false,
results: false,
search: '',
arrowCounter: 0,
filter: null,
position: 0
};
},
methods: {
...mapActions({
getFilterByCharacter: 'tags/getTagsFromDb'
}),
onChange(e) {
this.isOpen = true;
this.position = e.target.selectionStart;
},
setResult(result) {
this.search = result;
this.isOpen = false;
},
getResults(){
this.getTagsByValue(this.search).then((response) => {
this.results = response;
});
},
async getTagsByValue(value){
const filters = {autocompleteCharacter : value};
return await this.getFilterByCharacter(filters);
},
onArrowDown() {
if (this.arrowCounter < this.results.length) {
this.arrowCounter = this.arrowCounter + 1;
}
},
onArrowUp() {
if (this.arrowCounter > 0) {
this.arrowCounter = this.arrowCounter - 1;
}
},
onEnter(evt) {
this.search = this.results[this.arrowCounter].name;
this.isOpen = false;
this.arrowCounter = -1;
}
},
watch: {
search: function() {
this.getResults();
}
},
};
</script>
<style>
.autocomplete {
position: relative;
}
.autocomplete-results {
padding: 0;
margin: 0;
border: 1px solid #eeeeee;
height: 120px;
overflow: auto;
width: 100%;
}
.autocomplete-result {
list-style: none;
text-align: left;
padding: 4px 2px;
cursor: pointer;
}
.autocomplete-result.is-active,
.autocomplete-result:hover {
background-color: #4AAE9B;
color: white;
}
</style>
Just as you did in your form to avoid "natural" form submit and replace it with a custom action:
#submit.prevent="createDocument"
... you have to preventDefault the "natural" event that submits the form when you press Enter while focusing the form.
To do so, just add .prevent to your events in the template:
#keydown.down.prevent="onArrowDown"
#keydown.up.prevent="onArrowUp"
#keydown.enter.prevent="onEnter"
I'm trying to capture an event on the component root node, but the following does not work. I don't want to just listen on a node in the component. I want to be able to click on any element and then hit backspace to remove it. The code below is a basic example of how I setup my code.
<template>
<div v-on:keydown.delete="delete()">
<img id="image" src="..." v-on:click="set_active()">
</div>
</template>
<script>
export default {
return {
data() {
active: ''
},
methods: {
delete(){
delete this.$refs[this.active][0];
},
set_active() {
this.active = event.target.getAttribute('id');
}
}
}
}
</script>
After doing some tests, here is what I discovered:
Having a method called delete won't work. I don't know why, the question remains unanswered here. Rename it to remove, for example.
When trying to catch keyboard events on a div, you may need to add a tabindex attribute for it to work. (See here)
Interactive demo
Vue.component('my-component', {
template: '#my-component',
data() {
return {
images: [
"https://media.giphy.com/media/3ohs7KtxtOEsDwO3GU/giphy.gif",
"https://media.giphy.com/media/3ohhwoWSCtJzznXbuo/giphy.gif",
"https://media.giphy.com/media/8L0xFP1XEEgwfzByQk/giphy.gif"
],
active: null
};
},
methods: {
set_active(i) {
this.active = i;
},
remove() {
if (this.active !== null) {
this.images = this.images.filter((_, i) => i !== this.active);
this.active = null;
}
}
}
});
var vm = new Vue({
el: '#app'
});
div {
outline: none; /* Avoid the outline caused by tabindex */
border: 1px solid #eee;
}
img {
height: 80px;
border: 4px solid #eee;
margin: .5em;
}
img:hover {
border: 4px solid #ffcda9;
}
img.active {
border: 4px solid #ff7c1f;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.21/vue.min.js"></script>
<div id="app">
<my-component></my-component>
</div>
<template id="my-component">
<div #keydown.delete="remove" tabindex="0">
<img
v-for="(img, i) in images"
:key="i"
:src="img"
:class="{ active: active === i }"
#click="set_active(i)"
/>
</div>
</template>
I have several elements that are displayed as <li> elements in a loop. For each element I want behavior such that when the element is clicked a modal box opens up. Inside the modal box I want contents that are specific to the element that was clicked.
The data below shows all the elements:
{value: 10, name: "foo"},
{value: 12, name: "bar"},
{value: 14, name: "foobar"},
{value: 22, name: "test"},
{value: 1, name: "testtooo"},
{value: 8, name: "something"}
When I click on an element, I want to see the value property for it inside the modal box.
I've created a fiddle for this: https://jsfiddle.net/hvb9hvog/14/
Question
I've gotten the modal working, however, how can I show each elements value property inside the modal?
I am sure there are multiple ways to go about this, but one way would be to create a new data property, let's call it value. When you #click the li you get it's value, set it to the value property and display that value property in the body of the modal ({{this.value}}).
You can have two #click methods, so create another one that updates the data property you just created, called value.
Here's a fiddle
Relevant code changes:
In your li element:
<li v-for="request in filteredRequests">
{{request.name}}
</li>
In your modal markup:
<modal v-if="showModal" #close="showModal = false">
<!--
you can use custom content here to overwrite
default content
-->
<h3 slot="header">custom header</h3>
<div slot="body">
{{this.value}}
</div>
</modal>
In vue data:
data: {
requests: [
{value: 10, name: "foo"},
{value: 12, name: "bar"},
{value: 14, name: "foobar"},
{value: 22, name: "test"},
{value: 1, name: "testtooo"},
{value: 8, name: "something"}
],
num: 0,
showModal: false,
value: 9999999999
},
In vue methods:
methods: {
setVal(val) {
this.value = val;
}
},
Vue.component('modal', {
template: '#modal-template'
})
var vm = new Vue({
el: "#app",
data: {
requests: [{
value: 10,
name: "foo"
},
{
value: 12,
name: "bar"
},
{
value: 14,
name: "foobar"
},
{
value: 22,
name: "test"
},
{
value: 1,
name: "testtooo"
},
{
value: 8,
name: "something"
}
],
num: 0,
showModal: false,
value: 9999999999
},
methods: {
setVal(val) {
this.value = val;
}
},
computed: {
c: function() {
return `Slider Number: (${this.num})`
},
filteredRequests() {
return this.requests.filter(r => r.value > this.num)
}
},
});
.modal-mask {
position: fixed;
z-index: 9998;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: rgba(0, 0, 0, .5);
display: table;
transition: opacity .3s ease;
}
.modal-wrapper {
display: table-cell;
vertical-align: middle;
}
.modal-container {
width: 300px;
margin: 0px auto;
padding: 20px 30px;
background-color: #fff;
border-radius: 2px;
box-shadow: 0 2px 8px rgba(0, 0, 0, .33);
transition: all .3s ease;
font-family: Helvetica, Arial, sans-serif;
}
.modal-header h3 {
margin-top: 0;
color: #42b983;
}
.modal-body {
margin: 20px 0;
}
.modal-default-button {
float: right;
}
/*
* The following styles are auto-applied to elements with
* transition="modal" when their visibility is toggled
* by Vue.js.
*
* You can easily play with the modal transition by editing
* these styles.
*/
.modal-enter {
opacity: 0;
}
.modal-leave-active {
opacity: 0;
}
.modal-enter .modal-container,
.modal-leave-active .modal-container {
-webkit-transform: scale(1.1);
transform: scale(1.1);
}
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
<script src="https://unpkg.com/vue#2.3.4/dist/vue.js"></script>
<script type="text/x-template" id="modal-template">
<transition name="modal">
<div class="modal-mask">
<div class="modal-wrapper">
<div class="modal-container">
<div class="modal-header">
<slot name="header">
default header
</slot>
</div>
<div class="modal-body">
<slot name="body">
default body
</slot>
</div>
<div class="modal-footer">
<slot name="footer">
default footer
<button class="modal-default-button" #click="$emit('close')">
OK
</button>
</slot>
</div>
</div>
</div>
</div>
</transition>
</script>
<div id="app">
<div class="form-horizontal">
<div class="form-group">
<label class="col-md-2 control-label">色</label>
<div class="col-md-10">
<input class="form-control" v-model="c" :style="{backgroundColor: c}" />
<div class="help-block">
<input type="range" min="0" max="360" v-model.number="num" />
<ul class="ml-thumbs">
<li v-for="request in filteredRequests">
{{request.name}}
</li>
</ul>
<modal v-if="showModal" #close="showModal = false">
<!--
you can use custom content here to overwrite
default content
-->
<h3 slot="header">custom header</h3>
<div slot="body">
{{this.value}}
</div>
</modal>
</div>
</div>
</div>
</div>
</div>
Add "req" property to data
data() {
return {
...
req: {},
...
}
}
set click event:
{{request.name}}
add body slot
...
<h3 slot="header">custom header</h3>
<div slot="body">
{{req.value}}
</div>
...
https://jsfiddle.net/w4e6hr86/
I'm not sure if you are asking this using Vue.js or just JS. So, here are my answers (basic examples). I recommend you to read about event delegation + events on vuejs.
Vue Js
<template>
<div class="content">
<ul>
<li v-for="item in items" #click.prevent="showModal(item)">{{ item }}</li>
</ul>
<div class="modal" v-show="isModalVisible">
{{ JSON.stringify(selectedItem) }}
close modal
</div>
</div>
</template>
<script>
export default {
name: 'something',
data () {
return {
selectedItem: item,
items: [{
id: 1,
name: 'something'
}, {
id: 2,
name: 'something #2'
}]
}
},
computed: {
isModalVisible () {
return this.selectedItem !== null
}
}
methods: {
showModal (item) {
this.selectedItem = item
}
}
}
</script>
Plain javascript
const toggleModal = content => {
const $body = document.querySelector('body')
const $modal = $body.querySelector('.modal')
$modal && $modal.remove()
$body.insertAdjacentHTML('beforeend',`<div class="modal">${content}</div>`)
}
document.querySelector('ul').addEventListener('click', e => {
if (! e.target.matches('li')) {
return
}
toggleModal(e.target.innerText)
});
About Event delegation.
About insertAdjacentHtml.
About Vuejs Event handling