This is my PhoneLineNumberComponent. It's running perfectly, but I want when a user clicks the button on parent component, the child component form will be loaded.
PhoneLineNumberComponent is my child component
and ButtonComponent is my parent component
<template>
<div>
<form v-for="(line,index) in lines" v-bind:key="index">
<div class="form-group">
<div class="col-lg-6">
<div class="row">
<div class="form-group">
<input v-model="line.number"
float-label="Phone Number"
numeric-keyboard-toggle
placeholder="5551234567"
type="text"
class="form-control"
value="" />
</div>
</div>
</div>
<button type="button" v-if="index + 1 === lines.length" #click="addLine">Add</button>
<button type="button" #click="removeLine(index)">Delete</button>
</div>
</form>
</div>
</template>
<script>
export default {
name: 'PhoneNumberLineComponent',
data() {
return {
lines:[],
blockRemoval: true,
index:[],
}
},
watch: {
lines() {
this.blockRemoval = this.lines.length <= 1
}
},
methods: {
addLine() {
let checkEmptyLines = this.lines.filter(line => line.number === null)
if (checkEmptyLines.length >= 1 && this.lines.length > 0) return
this.lines.push({
countryCode: null,
number: null,
})
},
removeLine(lineId) {
if (!this.blockRemoval) this.lines.splice(lineId, 1)
}
},
mounted() {
this.addLine()
}
}
</script>
<style scoped>
</style>
This is my ButtonComponent. I want when a user clicks the button on ButtonComponent child component PhoneLineNumber shall be triggered.
<template>
<div>
<PhoneNumberLineComponent></PhoneNumberLineComponent>
</div>
</template>
<script>
import PhoneNumberLineComponent from './PhoneNumberLineComponent';
export default {
name:'ButtonComponent',
components: {
PhoneNumberLineComponent
},
data() {
return {
lines: [],
blockRemoval: true,
index:[],
}
},
};
</script>
<style scoped>
</style>
You can set control clicked data like toggleShow with boolean type and use v-if for your component trigger
<template>
<div>
<PhoneNumberLineComponent v-if="toggleShow"></PhoneNumberLineComponent>
<button #click="toggleShow = !toggleShow">Button</button>
</div>
</template>
<script>
import PhoneNumberLineComponent from './PhoneNumberLineComponent';
export default {
name:'ButtonComponent',
components: {
PhoneNumberLineComponent
},
data() {
return {
lines: [],
blockRemoval: true,
index:[],
toggleShow: false
}
},
};
</script>
Related
I am a bit confused about how to pass a value defined inside a button to a child component. Basically, the value of a clicked button displaying a percentage should be the prop value. This prop value should change based on which value I click. Should I use a v-model? If so, how? Here's what I have so far...
ButtonGroup.vue
<button class="button" v-on:click="percentageValue(0.05)">5%</button>
<button class="button" v-on:click="percentageValue(.10)">10%</button>
<button class="button" v-on:click="percentageValue(.15)">15%</button>
<button class="button" v-on:click="percentageValue(.25)">25%</button>
<button class="button" v-on:click="percentageValue(.50)">50%</button>
<script>
export default {
name: 'ButtonGroup',
data(){
return{
percentage: null
}
},
methods:{
percentageValue(value){
return this.percentage = value;
}
},
props:['percentage']
}
</script>
Calculator.vue
<ButtonGroup :percentage="percentage"/>
Try like this:
Vue.component('button-group', {
template: `
<div class="">
<ul>
<li v-for="(percent, i) in percentages" :key="i">
<button class="button"
#click="setPercent(percent)"
:class="selPercent === percent && 'selected'">
{{ percent }}%
</button>
</li>
</ul>
</div>
`,
props:['percentage'],
data(){
return{
selPercent: this.percentage,
percentages: [5, 10, 15, 25, 50 ]
}
},
methods:{
setPercent(value){
this.selPercent = value;
this.$emit('percent-seted', value);
}
},
})
new Vue({
el: '#demo',
data() {
return {
percent: 5
}
},
methods: {
percentSeted(val) {
this.percent = val
}
}
})
Vue.config.productionTip = false
Vue.config.devtools = false
ul {
list-style: none;
display: flex;
}
.selected {
background: violet;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<div id="demo">
<h3>{{ percent }}%</h3>
<button-group :percetntage="percent" #percent-seted="percentSeted" />
</div>
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>
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.$el.querySelector('input[type="text"]').select();
});
},
close() {
this.editing = false;
}
}
})
new Vue({
el: '#app',
data: () => ({
titleList: [],
text: 'New Title',
size: 'h3'
}),
methods: {
addNewTitle() {
this.titleList.push({
text: this.text,
size: this.size
});
}
}
})
.edit-on-click {
user-select: none;
}
.heading-size {
margin-top: 1rem;
width: 24px;
}
p.info {
background-color: beige;
border: 1px solid orange;
color: brown;
padding: 4px 5px;
margin-top: 2rem;
}
<script src="https://vuejs.org/js/vue.min.js"></script>
<div id="app">
<editable-heading
v-for="(title, index) of titleList" :key="index"
v-model="title.text"
:size="title.size">
</editable-heading>
<div>
<label>
Heading size:
<input v-model="size" class="heading-size" />
</label>
</div>
<div>
<label>
Title:
<input v-model="text" />
</label>
</div>
<div>
<button #click="addNewTitle()">Add new title</button>
</div>
<p class="info">
[double-click]: Edit <br />
[enter]: Confirm <br />
[esc/mouseleave]: Cancel
</p>
</div>
<script id="editable-heading" type="text/x-template">
<div class="edit-on-click">
<input
type="text"
v-if="editing"
:value="value"
#blur="close"
#keydown.enter="confirm"
#keydown.esc="close" />
<component :is="size" v-else #dblclick="start">{{value}}</component>
</div>
</script>
I am new to polymer. With the following code I am trying to display a dialog box on context menu click. But the code does not work. Can someone help?
<dom-module id="my-dom">
<template>
<style is="custom-style">
vaadin-grid {
--vaadin-grid-body-cell: {
padding: 0;
};
}
.body-content {
padding: 8px;
}
</style>
<vaadin-context-menu>
<template>
<paper-listbox>
<paper-item on-tap="_add">Add</paper-item>
<template is="dom-if" if="[[_isGridBody(target)]]">
<paper-item content="[[target]]" on-tap="_remove">Remove</paper-item>
</template>
</paper-listbox>
</template>
<vaadin-grid id="grid" items="[[items]]">
<vaadin-grid-column>
<template class="header">Name</template>
<template>
<div class="body-content" data-index$="[[index]]">[[item.name]]</div>
</template>
</vaadin-grid-column>
<vaadin-grid-column>
<template class="header">Surname</template>
<template>
<div class="body-content" data-index$="[[index]]">[[item.surname]]</div>
</template>
</vaadin-grid-column>
<vaadin-grid-column>
<template class="header">Effort</template>
<template>
<div class="body-content" data-index$="[[index]]">[[item.effort]]</div>
</template>
</vaadin-grid-column>
</vaadin-grid>
</vaadin-context-menu>
<vaadin-dialog id="dialog" no-close-on-esc no-close-on-outside-click>
<template>
<div>Press any button to close</div>
<br>
<isp-content></isp-content>
<vaadin-button on-click="closeDialog">Ok</vaadin-button>
<vaadin-button on-click="closeDialog">Cancel</vaadin-button>
</template>
</vaadin-dialog>
<!--paper-dialog id="dialog" modal>
<h2>Dialog Title</h2>
<p> Hello World</p>
<div class="buttons">
<paper-button dialog-confirm autofocus>Tap me to close</paper-button>
</div>
</paper-dialog-->
</template>
<script>
Polymer({
is: "my-dom",
properties: {
items: {
type: Array,
value: function() {
return getItems();
}
}
},
ready: function() {
console.log("my-dom ready");
},
_isGridBody: function(target) {
return target.classList.contains("body-content");
},
_add: function() {
this.unshift('items', getNewItem());
this.$.dialog.open();
},
_remove: function(e) {
var index = parseInt(e.target.content.getAttribute('data-index'));
this.splice('items', index, 1);
},
closeDialog: function() {
this.$.dialog.opened = false;
}
});
function getNewItem() {
function random(arr) {
return arr[Math.floor(Math.random() * arr.length)];
}
var names = ['Artur', 'Patrik', 'Henrik', 'Teemu'];
var surnames = ['Signell', 'Lehtinen', 'Ahlroos', 'Paul'];
return {
name: random(naisp-contentmes),
surname: random(surnames),
effort: Math.floor(Math.random() * 6)
};
}
function getItems() {
var items = [];
for (var i = 0; i < 100; i++) {
items.push(getNewItem());
}
return items;
}
</script>
</dom-module>
With the above code I am trying to display a vaadin-dialog box on right-click the context menu. The dialog box appears for the first time. But after that the context-menu does not show at all.
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));