Created
July 24, 2020 11:37
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function generateKeyPad (options, callback) { | |
const btnSize = { | |
button: (options.size === 1 ? '15%' : options.size === 2 ? '20%' : '32%') + ' !important', | |
clear: (options.size === 1 ? '31%' : options.size === 2 ? '41%' : '32%') + ' !important' | |
} | |
// Define stylesheet | |
const styleSheet = ` | |
.input-container { | |
width: 100% !important; | |
display: flex !important; | |
flex-wrap: wrap !important; | |
border-radius: 10px !important; | |
font-family: 'Ubuntu' !important; | |
box-sizing: border-box !important; | |
font: 71%/1.5 !important; | |
text-align: center !important; | |
} | |
.input-container button { | |
min-width: ${btnSize.button}; | |
max-width: ${btnSize.button}; | |
height: 50px !important; | |
margin: .1rem !important; | |
font-size: 1.3rem !important; | |
text-align: center !important; | |
background: #fff !important; | |
border: .5px solid #ccc !important; | |
border-radius: 5px !important; | |
outline: none !important; | |
font-weight: 500 !important; | |
} | |
.input-container button:hover { | |
position: relative !important; | |
top: 1px !important; | |
left: 1px !important; | |
border-color: #e5e5e5 !important; | |
cursor: pointer !important; | |
}`; | |
let display, enter | |
if (options.display) { | |
display = document.querySelector (options.display) | |
} | |
const otp = document.querySelector (options.formField || '#otp') | |
const container = document.querySelector (options.container) | |
const stylesheet = document.createElement('style'); | |
stylesheet.innerHTML = styleSheet; | |
container.appendChild(stylesheet); | |
const createDiv = document.createElement ('div') | |
createDiv.setAttribute ('class', 'input-container') | |
const createClearButton = document.createElement ('button') | |
createClearButton.innerText = 'CLEAR' | |
createClearButton.addEventListener ('click', () => { | |
updateDisplay (null) | |
}) | |
createClearButton.setAttribute ('type', 'button') | |
createClearButton.setAttribute('style', `min-width: ${btnSize.clear}; width: ${btnSize.clear}`); | |
createDiv.appendChild (createClearButton) | |
if (options.submitButton) { | |
enter = document.querySelector (options.submitButton) | |
} | |
// storing a copy of the value so that, when a user manually inspect the rendered component, and edits it, | |
// the true value will remain unchanged | |
var PINVALUE = ''; | |
if (options.submitButton) { | |
enter.addEventListener ('click', () => { | |
callback (getOTP ()) | |
}) | |
} | |
function updateDisplay (value) { | |
if (value !== 0 && !value) { | |
if (options.display) display.innerHTML = '' | |
otp.value = '' | |
PINVALUE = '' | |
return | |
} | |
if (options.display) display.innerHTML += '*' | |
otp.value += value | |
PINVALUE += value | |
} | |
function getOTP () { | |
if (otp.value && otp.value !== PINVALUE) return 'error' | |
return PINVALUE | |
} | |
function getRandomNumber (input) { | |
let array = [0, 1, 2, 3, 4, 6, 7, 5, 8, 9].sort ((a, b) => 0.5 - Math.random ()) | |
array.forEach (item => { | |
const newBtn = document.createElement ('button') | |
const newContent = document.createTextNode (item) | |
newBtn.setAttribute ('type', 'button') | |
newBtn.appendChild (newContent) | |
newBtn.addEventListener ('click', () => { | |
updateDisplay (item) | |
}) | |
input.prepend (newBtn) | |
}) | |
} | |
getRandomNumber (createDiv, 9) | |
container.appendChild (createDiv) | |
} | |
window.generateKeyPad = generateKeyPad | |
// Useage | |
generateKeyPad({ | |
container: '#pinContainer', | |
submitButton: '#SubmitButton', | |
formField: '#PIN', | |
size: 1 // for style sheet default to 3 | |
}, (value) => { | |
console.log(value) | |
}) |
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I may need to clean this up and make it into an npm module just for the fun of it