Dot Digit Input

dot-digit-input.markdown

Dot Digit Input

The nice input with dots that you fill. One of my YouTube subscribers asked me how to do that you can find that on some websites this cool thing. And I was wondering how they do that. Some messed up tricks and wacks and we got this. It also works on the phone

A Pen by Godje on CodePen.

License.

index.pug

.container
	//- h1 Dot digit input
	//- p Type the code that you received in your e-mail below:
	.inputs#inputs
		input(maxlength="2" placeholder="•" value="")
		input(maxlength="2" placeholder="•" value="")
		input(maxlength="2" placeholder="•" value="")
		input(maxlength="1" placeholder="•" value="")

script.js

function processInput(holder){
	var elements = holder.children(), //taking the "kids" of the parent
			str = ""; //unnecesary || added for some future mods
	
	elements.each(function(e){ //iterates through each element
		var val = $(this).val().replace(/\D/,""), //taking the value and parsing it. Returns string without changing the value.
				focused = $(this).is(":focus"), //checks if the current element in the iteration is focused
				parseGate = false;
		
		val.length==1?parseGate=false:parseGate=true; 
			/*a fix that doesn't allow the cursor to jump 
			to another field even if input was parsed 
			and nothing was added to the input*/
		
		$(this).val(val); //applying parsed value.
		
		if(parseGate&&val.length>1){ //Takes you to another input
			var	exist = elements[e+1]?true:false; //checks if there is input ahead
			exist&&val[1]?( //if so then
				elements[e+1].disabled=false,
				elements[e+1].value=val[1], //sends the last character to the next input
				elements[e].value=val[0], //clears the last character of this input
				elements[e+1].focus() //sends the focus to the next input
			):void 0;
		} else if(parseGate&&focused&&val.length==0){ //if the input was REMOVING the character, then
			var exist = elements[e-1]?true:false; //checks if there is an input before
			if(exist) elements[e-1].focus(); //sends the focus back to the previous input
		}
		
		val==""?str+=" ":str+=val;
	});
}

$("#inputs").on('input', function(){processInput($(this))}); //still wonder how it worked out. But we are adding input listener to the parent... (omg, jquery is so smart...);

$("#inputs").on('click', function(e) { //making so that if human focuses on the wrong input (not first) it will move the focus to a first empty one.
	var els = $(this).children(),
			str = "";
	els.each(function(e){
		var focus = $(this).is(":focus");
		$this = $(this);
		while($this.prev().val()==""){
			$this.prev().focus();
			$this = $this.prev();
		}
	})
});

scripts

<script src="https://code.jquery.com/jquery-3.2.1.min.js"></script>

style.sass

@import url('https://fonts.googleapis.com/css?family=Open+Sans:300,400,600,700')

$fontsize: 60px //code
$placeholderColor: lighten(#3498db, 20%)

body
	background-color: #2980b9
	background-image: linear-gradient(45deg, darken(#2980b9, 10%), #3498db)
	background-size: 100%
	background-position: 0 0
	background-attachment: fixed
	padding: 10px
	height: 100vh
	color: #fff
	font-family: "Open Sans", sans-serif
	box-sizing: border-box
	overflow: hidden

input::-webkit-input-placeholder
	color: $placeholderColor !important
 
input:-moz-placeholder
	color: $placeholderColor !important  
 
input::-moz-placeholder  /* Firefox 19+ */
	color: $placeholderColor !important
 
input:-ms-input-placeholder  
	color: $placeholderColor !important

.container
	width: 90%
	height: 100vh
	margin: 0 auto
	display: flex
	flex-direction: column
	justify-content: center
	align-items: 	center
	p
		font-size: 24px
		font-weight: 100
	h1
		font-size: 32px
		font-weight: 600
	
.inputs
	input
		width: #{$fontsize/(3/2)+10}
		height: $fontsize
		line-height: 100%
		background-color: transparent
		border: 0
		outline: 0
		color: white
		font-size: $fontsize
		word-spacing: 0px
		overflow: hidden
		text-align: center