How To Create A Popup In React Js

In this blog we will learn how to create a custom PopUp Component in React. Our Focus will be on creating a Reusable Component that we can Invoke from any of the component entire our project.

So Let's follow the steps to create this component.

Step 1: Create a file named custom-popup.module.css with following code

. overlay {

visibility : hidden ;

opacity : 0 ;

position : fixed ;

top : 0 ;

bottom : 0 ;

left : 0 ;

right : 0 ;

background : rgba ( 0 , 0 , 0 , 0.7 ) ;

transition : opacity 500ms ;

}

. popup {

margin : 70px auto ;

padding : 20px ;

background : #fff;

border - radius : 5px ;

width : 30 % ;

position : relative ;

transition : all 5s ease - in - out ;

}

. popup h2 {

margin - top : 0 ;

color : #333;

font - family : Tahoma , Arial , sans - serif ;

}

. popup . close {

position : absolute ;

top : 20px ;

right : 30px ;

transition : all 200ms ;

font - size : 30px ;

font - weight : bold ;

text - decoration : none ;

color : #333;

}

. popup . close : hover {

cursor : pointer ;

color : #000;

}

. popup . content {

max - height : 30 % ;

overflow : auto ;

}

@ media screen and ( max - width : 700px ) {

. popup {

width : 70 % ;

}

In this file we have created all the relevant css that will be needed in our component

Step 2: Now create Popup Component with name CustomPopup.jsx with following code

import { useEffect , useState } from "react" ;

import popupStyles from "./custom-popup.module.css" ;

import PropTypes from "prop-types" ;

const CustomPopup = ( props ) = > {

const [ show , setShow ] = useState ( false ) ;

const closeHandler = ( e ) = > {

setShow ( false ) ;

props . onClose ( false ) ;

} ;

useEffect ( ( ) = > {

setShow ( props . show ) ;

} , [ props . show ] ) ;

return (

< div

style = { {

visibility : show ? "visible" : "hidden" ,

opacity : show ? "1" : "0"

} }

className = { popupStyles . overlay }

< div className = { popupStyles . popup } >

< h2 > { props . title } < / h2 >

< span className = { popupStyles . close } onClick = { closeHandler } >

& times ;

< / span >

< div className = { popupStyles . content } > { props . children } < / div >

< / div >

) ;

} ;

CustomPopup . propTypes = {

title : PropTypes . string . isRequired ,

show : PropTypes . bool . isRequired ,

onClose : PropTypes . func . isRequired

} ;

export default CustomPopup ;

This will be our component code where we are maintaining the popup opening and closing states on various events. Also we are using propTypes Module to validate our Props. make sure you have installed prop-types module using following npm command

npm install prop - types -- save

Step 3: Invocation from another component

< CustomPopup

onClose = { popupCloseHandler }

show = { visibility }

title = "Hello Jeetendra"

< h1 > Hello This is Popup Content Area < / h1 >

< h2 > This is my lorem ipsum text here ! < / h2 >

< / CustomPopup >

It will need 3 props :
1: onClose – need a handler to do some activity after close click in popup itself
2: show – pass the visibility of popup suing boolean true or false
3: title – provide the popup title

and Inside the you may pass any valid JSX that you want to render as content of popup

If you need a complete example how can we do utilise this PopUp Component then you may look into following code

import { useState } from "react" ;

import CustomPopup from "./CustomPopup" ;

import "./styles.css" ;

export default function App ( ) {

const [ visibility , setVisibility ] = useState ( false ) ;

const popupCloseHandler = ( e ) = > {

setVisibility ( e ) ;

} ;

return (

< div className = "App" >

< button onClick = { ( e ) = > setVisibility ( ! visibility ) } > Toggle Popup < / button >

< CustomPopup

onClose = { popupCloseHandler }

show = { visibility }

title = "Hello Jeetendra"

< h1 > Hello This is Popup Content Area < / h1 >

< h2 > This is my lorem ipsum text here ! < / h2 >

< / CustomPopup >

< / div >

) ;

}

Hurray we are all set, It will look like following screenshot

Thats it for this blog. you may reach out to me in case you have any doubts and suggestions please let me know in comments section.

Thanks

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