jb-input

jb-input

text input web component with this benefit:

• easy to add custom regex or function validation.

• multiple validation with different message.

• support both RTL and LTR.

• add label and message in UX frienly format.

• customizable ui with css variable sp you can have multiple style in different scope of your app.

• custom display for password and number input.

sample: https://codepen.io/javadbat/pen/dyNwddd

instructions

install

using npm

npm i jb-input

in one of your js in pag

import 'jb-input';

in your html or jsx

<jb-input class="" label="لیبل" message="متن ثابت زیر کادر متن"></jb-input>

using cdn

you can just add script tag to your html file and then use web component how ever you need

<script src="https://unpkg.com/jb-input"></script>

get/set value

//get value
const inputValue = document.getElementByTagName('jb-input').value;
//set value
document.getElementByTagName('jb-input').value = "new string";

events

document.getElementByTagName('jb-input').addEventListener('change',(event)=>{console.log(event.target.value)});
document.getElementByTagName('jb-input').addEventListener('keyup',(event)=>{console.log(event.target.value)});
document.getElementByTagName('jb-input').addEventListener('keydown',(event)=>{console.log(event.target.value)});
document.getElementByTagName('jb-input').addEventListener('keypress',(event)=>{console.log(event.target.value)});
document.getElementByTagName('jb-input').addEventListener('input',(event)=>{console.log(event.target.value)});
document.getElementByTagName('jb-input').addEventListener('beforeinput',(event)=>{console.log(event.target.value)});
// when user press enter on keyboard(dispatched on onKeyup)
document.getElementByTagName('jb-input').addEventListener('enter',(event)=>{console.log(event.target.value)});

set validation

you can set validation to your input:

    titleInput.validationList = [
        {
            validator: /.{3}/g,
            message: 'عنوان حداقل باید سه کاکتر طول داشته باشد'
        },
        #you can use function as a validator too
        {
            validator: (inputedText)=>{return inputedText == "سلام"},
            message: 'شما تنها میتوانید عبارت سلام را وارد کنید'
        },
    ]

check validation

you can check is image input value meet your validation standad by dom.triggerInputValidation(showError) the showError parameter is optional and its defualt is true but you cant set it false so if value is invalid component dont react and show error to user and just return validation object.
in change event we have detail object you can access it by event.detail.isValid so you can see in new value is a valid value or not this way is really useful when you dont access to DOM directly like what we have in js frameworks.

number input extra feature

if you set type="number" jb-input will add some feature for you for example your input will only get number chart and wont accept other string and we add 2 + & - button to the input so user can change number without keyboard by just tap on these buttons. you can also use Up and Down arrow keys too increase or decrease number value in your field.
jb-input will also let you control some aspect of user input too for example you can limit decimal precision or change increase/decrease step of + - button.
too achive this you must call one function and set value you need to change.

number input events

click on + - button will call onChange event.

    document.getElementByTagName('jb-input').setNumberFieldParameter({
        //how many number you want to + or  - on user press buttons or use arrow keys defualt is 1
        step:100,
        // how many decimal input accept defualt is infinty
        decimalPrecision:2,
        // what char replaced to input if user paste some illeglal value defualt is '' (empty string)
        invalidNumberReplacement:'0'
    })

other attribute

atribute name	description
name	name you want to set to actual input element <jb-input name="username"></jb-input>
message	in botton of input we show small message for example "user name must be at least 5 char"
autocomplete	set autocomplete directly into dom element in case you need it
direction	set web-component direction defualt set is rtl but if you need ltr use <jb-input direction="ltr"></jb-input>
disabled	disable the input
inputmode	set input mode help mobile device to open proper keyboard for your input like url, search and numeric

set custome style

in some cases in your project you need to change defualt style of web-component for example you need zero margin or different border-radius and etc.
if you want to set a custom style to this web-component all you need is to set css variable in parent scope of web-component

css variable name	description
--jb-input-margin	web-component margin defualt is 0 12px
--jb-input-border-radius	web-component border-radius defualt is 16px
--jb-input-border-color	border color of select in normal mode
--jb-input-border-color-focus	border color of select in normal mode
--jb-input-bgcolor	background color of input
--jb-input-border-bottom-width	border bottom thickness desualt is 3px
--jb-input-label-font-size	font size of input label defualt is 0.8em
--jb-input-label-color	change label color defualt is #1f1735
--jb-input-message-font-size	font size of message we show under input
--jb-input-message-error-color	change color of error we show under input defualt is red
--jb-input-height	height of input defualt is 40px
--jb-input-placeholder-color	change placeholder color
--jb-input-placeholder-font-size	change placeholder font-size
--jb-input-value-font-size	input value font-size
--jb-input-value-color	input value color
--jb-input-input-padding	set input inner padding default is 2px 12px 0 12px
--jb-input-input-text-align	set input element text align for example if you have number Input and want to make it left
--jb-input-input-direction	set input element direction to other than inherited value from it's parent element
--jb-input-box-shadow	set box shadow of input
--jb-input-box-shadow-focus	set box shadow of input on focus

number input special style

css variable name	description
--jb-input-increase-button-color	+ button fill color
--jb-input-increase-button-color-hover	+ button fill color on hover
--jb-input-decrease-button-color	- button fill color
--jb-input-decrease-button-color-hover	- button fill color on hover
--jb-input-number-button-width	number input width
--jb-input-number-button-height	number input height
--jb-input-decrease-button-border	decrease button border
--jb-input-increase-button-border	increase button border
--jb-input-increase-button-border-radius	increase button border-radius
--jb-input-decrease-button-border-radius	decrease button border-radius
--jb-input-increase-button-bg	increase button background color
--jb-input-decrease-button-bg	decrease button background color

add custom element in input box

in jb-input you can put icon or any other custom html DOM in input box. to doing so you just have to plae custom DOM in jb-input tag and add slot="start-section" or slot="end-section" to place it before or after input field. for better result i suggest you use jb-input-inbox-element tag but its optional and you can use your own custom tag too. jb-input-inbox-element will add some style to make sure your icon will place in center and will not overflow nad make your job easier if you want more controll you can skip it and use your own tag. example:

<JBInput>
    <jb-input-inbox-element slot="end-section">
        <div>after</div>
    </jb-input-inbox-element>
    <jb-input-inbox-element slot="start-section">
        <div>before</div>
    </jb-input-inbox-element>
</JBInput>