I am trying to create a Component for titles that can be edited when they get double clicked.
The Component takes the h-tag that should be used and the title as props and should produce a normal h-tag, that turns into an input field once double clicked.
This already works if there is only one title on the page, however once there are multiple Components used on one page, it breaks as the Component is not scoped properly. But I can't figure out how.
Here is the code:
<template>
<div class="edit-on-click">
<input
:class="sizeClass"
type="text"
v-if="edit"
v-model="editedTitle"
#blur="finishEdit"
#keyup.enter="finishEdit"
v-focus="true"
/>
<span v-show="!edit" #dblclick.prevent="edit = true"></span>
</div>
</template>
The mounted hook I can't figure out how to scope:
mounted() {
let node = document.createElement(this.size); // Takes h-tag (h1, h2 etc.)
let titleText = document.createTextNode(this.finalTitle); // Takes title
node.appendChild(titleText);
node.classList.add("editable-title");
// This breaks the code once there are multiple components in the document
document.getElementsByTagName("span")[0].appendChild(node);
},
How can I scope this in an efficient way? Thank you very much in advance!
Well, with Vue, you'll probably want to avoid creating DOM elements the "native" way whenever possible, as you might run into race condition where Vue is unaware of the existence of these elements which you probably want be reactive at some point in time (in your case, the <span> double-clicking).
What you could do instead, is perhaps to dynamically "switch between" these different headings with this <component> and the v-bind:is prop. Consider the following example:
Vue.component('EditableHeading', {
template: '#editable-heading',
props: {
size: {
type: String,
default: 'h1'
},
value: {
type: String,
required: true
}
},
data() {
return {
editing: false
}
},
methods: {
confirm(e) {
this.$emit('input', e.target.value);
this.close();
},
start() {
this.editing = true;
this.$nextTick(() => {
this.$el.querySelector('input[type="text"]').select();
});
},
close() {
this.editing = false;
}
}
})
new Vue({
el: '#app',
data: () => ({
titleList: [],
text: 'New Title',
size: 'h3'
}),
methods: {
addNewTitle() {
this.titleList.push({
text: this.text,
size: this.size
});
}
}
})
.edit-on-click {
user-select: none;
}
.heading-size {
margin-top: 1rem;
width: 24px;
}
p.info {
background-color: beige;
border: 1px solid orange;
color: brown;
padding: 4px 5px;
margin-top: 2rem;
}
<script src="https://vuejs.org/js/vue.min.js"></script>
<div id="app">
<editable-heading
v-for="(title, index) of titleList" :key="index"
v-model="title.text"
:size="title.size">
</editable-heading>
<div>
<label>
Heading size:
<input v-model="size" class="heading-size" />
</label>
</div>
<div>
<label>
Title:
<input v-model="text" />
</label>
</div>
<div>
<button #click="addNewTitle()">Add new title</button>
</div>
<p class="info">
[double-click]: Edit <br />
[enter]: Confirm <br />
[esc/mouseleave]: Cancel
</p>
</div>
<script id="editable-heading" type="text/x-template">
<div class="edit-on-click">
<input
type="text"
v-if="editing"
:value="value"
#blur="close"
#keydown.enter="confirm"
#keydown.esc="close" />
<component :is="size" v-else #dblclick="start">{{value}}</component>
</div>
</script>
Related
Thanks for having look I'm kinda stuck.Trying to figure out how to have first checkbox rendered checked by default.
Here is my JS the categories are coming in dynamically
Vue.component('category-filter', {
template: '#category-filter-template',
props: {
appMounted: false,
},
data() {
return {
categories: {},
checkedState: false,
};
},
methods: {
handleCheckboxClicked(e) {
console.log({ e });
},
},
mounted() {
this.appMounted = true;
this.categories =jsContext.categories
},
});
Here is my template I have choose to make styles inline to make component more reusable
<div
class="filter-container--wrapper"
style="
display: -webkit-box;
display: -ms-flexbox;
display: flex;
flex-wrap: wrap;
-webkit-box-pack: center;
-ms-flex-pack: center;
justify-content: center;
margin-bottom: 2rem;
color: #fff;
background-color: #5676a7;
border-radius: 5px;
"
>
<div
id="filter-item"
style="padding: 15px"
v-for="category in categories"
:key="category.id"
>
<input
id="category-name"
type="checkbox"
#click="handleCheckboxClicked($event)"
:value="category.id"
:checked="checkedState"
/>
<label for="category-name">
<span>\{{category.name}}</span>
</label>
</div>
</div>
You can initialy define the value as checked by setting it when you setup the data for the model:
this.categories = Array.from(jsContext.categories || []).map((v,i) => (v.checked = !i, v));
Various issues:
You should use a model instead of :value, then change the model to checked.
Don't mutate props!
If categories is an array then set it as array in data, not object.
Is better to use computed props for the inline style, or if possible always put it in your CSS file or in <style>, you can scope it #category-filter-template .filter-container--wrapper {} if you don't want it conflicting.
<template id="category-filter-template">
<div class="filter-container--wrapper" :style="wrapperStyle">
<div
id="filter-item"
:style="itemStyle"
v-for="category in categories"
:key="category.id"
>
<input
id="category-name"
type="checkbox"
v-model="category.checked"
:checked="category.checked"
/>
<label for="category-name">
<span>\{{category.name}}</span>
</label>
</div>
</div>
</template>
Then your component:
Vue.component('category-filter', {
template: '#category-filter-template',
data() {
return {
categories: []
};
},
computed: {
wrapperStyle () {
return {
'display': 'flex',
'flex-wrap': 'wrap',
'-webkit-box-pack': 'center',
'-ms-flex-pack': 'center',
'justify-content': 'center',
'margin-bottom': ' 2rem',
'color': '#fff',
'background-color': ' #5676a7',
'border-radius': ' 5px'
}
},
itemStyle () {
return {
'padding': '15px'
}
}
},
mounted() {
this.categories = Array.from(jsContext.categories || []).map((v,i) => (v.checked = !i, v))
},
})
See working online: https://playcode.io/847454/
You should set the source of truth in your model, not in your rendering.
You should have something like
mounted() {
this.categories[0].id=true;
}
however, it's not clear what the structure of categories is. Is it an array? If so, you should initialized it as an empty array instead of an object. Also, if you should probably be using v-model instead of :value so that changes in checked status are saved in the model. Finally, I'm not sure if you want the model to be linked to the id attribute. Probably there is another attribute that you want to bind.
There is a product page where product list component and action buttons are there. This is the parent component. That product list component consists of list table and edit/add modal. Now, problem is Add action event is in parent component. But, add modal related data is available in child component.
So, how can i open that model based on click event from parent? Here i am doing like this approach.
Parent Component(Product Component snippets )
<template>
..... other code ....
<div class="action-buttons">
<vu-button class="add-action" #click="onAddAction">
<svg-icon
fill="#0071E3"
name="add"
height="20"
width="28"
/>
</vu-button>
</div>
<ChildComponent :open-add-modal="isAddModal" />
</template>
Methods in Parent component
onAddAction() {
this.editable = false;
this.isAddModal = true;
},
Now, in child component i passing boolean props openAddModal but i am checking condition into created hook to show Add modal.
Problem is in initial rendering or page load add modal is showing up not in click event. How can i solve this issue?
Child component(Created hook)
created() {
if(this.openAddModal) {
this.showModal = true;
this.formType = 'add';
this.editId = null;
}
},
I want to show add modal based on click event from parent not in initial page load.
You can try using a watcher instead of checking the value of open-add-modal in the created hook. This way, when the prop open-add-modal in the child component changes, you can check the new value there and emit the needed data to the parent to then open the modal.
Example:
Parent component code
<template>
<div>
<p>Parent component</p>
<button #click="changeOpenAddModal">Clic to get child data</button>
<button #click="resetParent">Reset data in parent</button>
<p>Data from child: {{ childData }}</p>
<br />
<br />
<Child
:openAddModal="this.openAddModal"
#child-component-data-emit="this.setChildData"
/>
</div>
</template>
<script>
import Child from "./Child";
export default {
name: "Parent",
components: { Child },
data() {
return {
childData: null,
openAddModal: false,
};
},
methods: {
changeOpenAddModal() {
this.openAddModal = !this.openAddModal;
console.log(
"changing openAddModal data. New value is ",
this.openAddModal
);
},
setChildData(data) {
console.log("setting child data", data);
this.childData = data;
},
resetParent() {
this.childData = null;
this.changeOpenAddModal();
},
},
};
</script>
Child component code
<template>
<div>
<p>Child component</p>
</div>
</template>
<script>
export default {
name: "Child",
props: {
openAddModal: {
type: Boolean,
default: false,
},
},
data() {
return {
childData: {
prop1: "lorem",
prop2: "ipsum",
prop3: "dolor",
},
};
},
watch: {
openAddModal: function (newValue, oldValue) {
console.log("child watcher with newValue", newValue);
if (newValue) {
this.$emit("child-component-data-emit", this.childData);
}
},
},
mounted: function () {
console.log("prop openAddModal value on mounted:", this.openAddModal);
},
};
</script>
I have built a few modals with Vue 2 and Vue CLI, and use an alternate approach for showing, hiding, and determined if add or edit mode. No watch or separate add/edit mode boolean is necessary.
The 'product' processing is somewhat contrived since no database or AJAX are used in this example, but you should get be able to evaluate the functionality.
Parent.vue
<template>
<div class="parent">
<h4>Parent of Form Modal</h4>
<div class="row">
<div class="col-md-6">
<button class="btn btn-secondary" #click="showAddModal">Show Add Modal</button>
<button class="btn btn-secondary btn-edit" #click="showEditModal">Show Edit Modal</button>
</div>
</div>
<form-modal v-if="displayModal"
:parentProduct="product"
#save-product-event="saveProduct"
#close-modal-event="hideModal"
/>
</div>
</template>
<script>
import FormModal from './FormModal.vue'
export default {
components: {
FormModal
},
data() {
return {
product: {
id: 0,
name: '',
description: ''
},
displayModal: false
}
},
methods: {
showAddModal() {
this.resetProduct();
this.displayModal = true;
},
showEditModal() {
this.product.id = 1;
this.product.name = 'productEdit';
this.product.description = 'productEditDescription';
this.displayModal = true;
},
hideModal() {
this.displayModal = false;
},
saveProduct(modalProduct) {
this.product = modalProduct;
this.hideModal();
console.log(this.product);
},
resetProduct() {
this.product.id = 0;
this.product.name = '';
this.product.description = '';
}
}
}
</script>
<style scoped>
.btn-edit {
margin-left: 0.5rem;
}
</style>
FormModal.vue
<template>
<!-- The Modal -->
<div id="form-modal" class="modal-dialog-container">
<div class="modal-dialog-content">
<div class="modal-dialog-header">
<h4>{{ modalTitle }}</h4>
</div>
<div class="modal-dialog-body">
<form #submit.prevent="saveProduct">
<div class="form-group">
<label for="product-name">Name</label>
<input type="text" class="form-control" id="product-name" v-model="product.name">
</div>
<div class="form-group">
<label for="product-description">Description</label>
<input type="text" class="form-control" id="product-description" v-model="product.description">
</div>
<button type="submit" class="btn btn-primary">Submit</button>
<button type="button" class="btn btn-secondary btn-close" #click="closeModal">Cancel</button>
</form>
</div>
</div>
</div>
</template>
<script>
export default {
props: {
parentProduct: {
type: Object,
required: true
}
},
data() {
return {
product: this.parentProduct
}
},
computed: {
modalTitle() {
return this.product.id === 0 ? 'Add Product' : 'Edit Product';
}
},
methods: {
closeModal() {
this.$emit('close-modal-event');
},
saveProduct() {
// Add product
if (this.product.id === 0) {
this.product.id = 2;
}
this.$emit('save-product-event', this.product);
}
}
}
</script>
<style scoped>
.modal-dialog-container {
/* display: none; Hidden by default */
position: fixed;
/* Stay in place */
z-index: 1;
/* Sit on top */
left: 0;
top: 0;
width: 100%;
/* Full width */
height: 100%;
/* Full height */
overflow: auto;
/* Enable scroll if needed */
background-color: rgb(0, 0, 0);
/* Fallback color */
background-color: rgba(0, 0, 0, 0.4);
/* Black w/ opacity */
}
.modal-dialog-content {
background-color: #fefefe;
margin: 10% auto;
padding: 20px;
border: 1px solid #888;
border-radius: 0.3rem;
width: 30%;
}
.btn-close {
margin-left: 0.5rem;
}
</style>
Say I have a data object and in that object, there is a property called anime1. How would I access have anime1 printed on the console as the user types their input in. This entire thing is in a component. I tried creating a function called log that when pressed would console.log the value of anime1 but that didn't work. This is what I've tried out so far.
<template>
<section class="hero">
<div class="parent-1">
<h1 class="title is-1">Compare two animes! :)</h1>
</div>
<div class="columns">
<div class="column">
<b-field class="label" label="Anime 1">
<b-input value="Enter the first anime!" v-model="anime1"></b-input>
</b-field>
</div>
<div class="column">
<b-field class="label" label="Anime 2">
<b-input value="Enter the second anime!" v-model="anime2"></b-input>
</b-field>
</div>
</div>
<div class="button-spacing">
<b-button class="button" type="is-primary" click="#log"
>Compare!</b-button
>
</div>
</section>
</template>
<script>
import Vue from "vue";
import Buefy from "buefy";
import "buefy/dist/buefy.css";
Vue.use(Buefy);
export default {
data() {
return {
anime1: "",
anime2: "",
};
},
methods: {
log(anime1) {
console.log(anime1);
},
},
};
</script>
<style>
.title.is-1 {
text-align: center;
}
.parent-1 {
margin-top: 10%;
}
.columns {
margin-top: 2%;
margin-right: 10%;
margin-left: 10%;
}
.label {
text-align: center;
}
.button {
width: 10%;
}
.button-spacing {
text-align: center;
}
</style>
To call a function as you type on the input field, add #input to it.
<b-input value="Enter the first anime!" v-model="anime1" #input="log()"></b-input>
Then, you can easily access the anime1 inside your log() using this.anime1 so you don't need to put parameters on it.
data() {
return {
anime1: "",
anime2: "",
}
},
methods: {
log(){
console.log(this.anime1)
}
}
Alternatively, as #Sphinx said in the comment, you can watch the anime1, then call a function once it changes.
<b-input value="Enter the first anime!" v-model="anime1"></b-input>
data() {
return {
anime1: "",
anime2: "",
}
},
watch: {
anime1(newVal) {
this.log(newVal);
}
},
methods: {
log(string) {
console.log(string);
},
}
Also, the way you add your click handler on your button won't work. It should be v-on:click, or simply #click. More on event handlers here.
<b-button class="button" type="is-primary" #click="log('comparing...')">Compare!</b-button>
I created a "box" component that I re-use several times. Each element has a #mouseenter event that the parent listens to. My goal is to change the border-color of the child element. Because I declared the from the parent with a loop I can't change only one of the childs properties but they all change
<template>
<div>
<div id="container">
<div id="row" v-for="i in 11" :key="i">
<div>
<box-component v-for="j in 7" :key="j" :color="getColor(i, j)" v-bind:borderColor="getBorder(i, j)" :row="i" :col="j" v-on:changeBorder="highlightBorder($event)"></box-component>
</div>
</div>
</div>
</div>
</template>
The problem is with this part:
v-bind:borderColor="getBorder(i, j)"
Because i and j have changed I don't know how to only affect one child.
I know that I could remove the loop and copy paste the same code but there must be another solution to this. I also know that this particular example could be implemented directly on the child component but I need to be able to do it from the parent.
You can do it this way:
<box-component v-on:change-border="highlightBorder(i, j)"></box-component>
From the docs:
Unlike components and props, event names will never be used as variable or property names in JavaScript, so there’s no reason to use camelCase or PascalCase. Additionally, v-on event listeners inside DOM templates will be automatically transformed to lowercase (due to HTML’s case-insensitivity), so v-on:myEvent would become v-on:myevent – making myEvent impossible to listen to.
For these reasons, we recommend you always use kebab-case for event names.
Interactive demo
Vue.component('parent-component', {
template: '#parent-component',
data() {
return {
defaultStyles: {
color: '#555',
borderColor: '#bbb'
},
highlightedStyles: {
color: '#f50',
borderColor: 'orange'
},
highlighted: {x: null, y: null}
};
},
methods: {
isHighlighted(x, y) {
return x === this.highlighted.x && y === this.highlighted.y;
},
getStyles(x, y) {
return this.isHighlighted(x, y) ? this.highlightedStyles : this.defaultStyles;
},
getColor(x, y) {
return this.getStyles(x, y).color;
},
getBorder(x, y) {
return this.getStyles(x, y).borderColor;
},
highlightBorder(x, y) {
this.highlighted = {x, y};
}
}
});
Vue.component('box-component', {
template: '#box-component',
props: ['color', 'borderColor']
});
var vm = new Vue({
el: '#app'
});
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
.row:after {
content: '';
display: block;
clear: both;
}
.box {
float: left;
padding: .5em;
border-width: 4px;
border-style: solid;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.21/vue.min.js"></script>
<div id="app">
<parent-component></parent-component>
</div>
<template id="parent-component">
<div>
<div id="container">
<div class="row" v-for="y in 11" :key="`row-${y}`">
<div>
<box-component
v-for="x in 7"
:key="`cell-${x}`"
:color="getColor(x, y)"
:border-color="getBorder(x, y)"
:col="x" :row="y"
#change-border="highlightBorder(x, y)"
></box-component>
</div>
</div>
</div>
</div>
</template>
<template id="box-component">
<div
class="box"
:style="{background: color, borderColor: borderColor}"
#mouseenter="$emit('change-border')"
></div>
</template>
I have a simple project where i am trying to learn the concepts of vue.js using componenetes, comunication between components(i use eventBus) i am using the webkit-simple template to approach this, basicly what happens, is that i have 1 component that consists in a simple textarea where i add some text, that text should be displayed in my second component, that is a template where i render a array with all my texts that i inserted, like a list of quotes.
component addQuote
<template>
<div class="row">
<div class="col-md-12">
<div class="form-group">
<div class="col-md-offset-3 col-md-6">
<label>Quote:</label>
<textarea v-model="quote.text" class="form-control" rows="5"></textarea>
<div class="text-center">
<button #click="addQuote" class="btn btn-primary center">Add Quote</button>
</div>
</div>
</div>
</div>
</div>
</template>
<script>
import { quoteBus } from '../main.js';
export default {
methods: {
addQuote() {
if (this.counter < 10) {
this.counter++;
this.quote.key =+ new Date();
quoteBus.$emit('saveQuote', this.quote);
}
}
},
data: function () {
return {
quote: {},
counter: 0
}
},
created(){
quoteBus.$on('decreaseCounter', () => {
this.counter--
});
}
}
</script>
<style scoped>
.row {
margin-top: 40px;
}
.center {
margin: 0 auto;
}
div .text-center {
margin-top: 20px;
}
</style>
component quotes
<template>
<div class="row">
<div class="col-md-3" v-for="(quote,$index) in quotes" #click="deleteQuote($index)" :key="quote.key">
<div class="spacing">
<h2>{{quote.text}}</h2>
</div>
</div>
</div>
</template>
<script>
import { quoteBus } from '../main.js';
export default {
data: function () {
return {
quotes: []
}
},
methods: {
deleteQuote(i){
this.quotes.splice(i,1);
quoteBus.$emit('decreaseCounter');
}
},
created() {
quoteBus.$on('saveQuote', quote => {
this.quotes.unshift(quote);
console.log(JSON.stringify(this.quotes));
});
}
}
</script>
<style scoped>
h2 {
font-family: 'Niconne', cursive;
}
div .col-md-3 {
border: 1px solid darkgray;
padding: 10px;
}
div .row {
margin-top: 40px;
}
.spacing {
margin: 10px;
padding: 10px;
}
</style>
the problem is, everytime i add a quote the text replace all the elements before.
Example:
9th entry: text: "abcdef", all the entries in the array has this value in text, all my divs has the value of abcdef, what is happening :S
const quoteBus = new Vue();
Vue.component('addQuote', {
template: '#addQuote-template',
methods: {
addQuote() {
if (this.counter < 10) {
this.counter++;
this.quote.key = +new Date();
quoteBus.$emit('saveQuote', Object.assign({}, this.quote));
}
}
},
data: function() {
return {
quote: {},
counter: 0
}
},
created() {
quoteBus.$on('decreaseCounter', () => {
this.counter--
});
}
});
Vue.component('quotes', {
template: '#quotes-template',
data: function() {
return {
quotes: []
}
},
methods: {
deleteQuote(i) {
this.quotes.splice(i, 1);
quoteBus.$emit('decreaseCounter');
}
},
created() {
quoteBus.$on('saveQuote', quote => {
this.quotes.unshift(quote);
console.log(JSON.stringify(this.quotes));
});
}
});
new Vue({
el: '#app'
});
<script src="//cdnjs.cloudflare.com/ajax/libs/vue/2.2.4/vue.min.js"></script>
<template id="addQuote-template">
<div class="row">
<div class="col-md-12">
<div class="form-group">
<div class="col-md-offset-3 col-md-6">
<label>Quote:</label>
<textarea v-model="quote.text" class="form-control" rows="5"></textarea>
<div class="text-center">
<button #click="addQuote" class="btn btn-primary center">Add Quote</button>
</div>
</div>
</div>
</div>
</div>
</template>
<template id="quotes-template">
<div class="row">
<div class="col-md-3" v-for="(quote,$index) in quotes" #click="deleteQuote($index)" :key="quote.key">
<div class="spacing">
<h2>{{quote.text}}</h2>
</div>
</div>
</div>
</template>
<div id="app">
<add-quote></add-quote>
<quotes></quotes>
</div>
The problem is that there is only one instance of this.quote in your addQuote component. You pass that particular object to quotes to be put into the array every time. When an object is put into an array, it is by-reference. If you put the same object into an array multiple times, you just have multiple references to the object's contents. Every element of your array is a reference to the same set of contents.
You need to send a copy of the object instead:
quoteBus.$emit('saveQuote', Object.assign({}, this.quote));