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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<title>Modal | Vanilla JS TailwindCSS Component</title>
<link href="https://unpkg.com/tailwindcss@^1.0/dist/tailwind.min.css" rel="stylesheet">
</head>
<body class="antialiased p-8">
<div class="mb-4">
<button
data-modal-trigger
aria-controls="modal-name"
aria-expanded="false"
type="button">
Open modal
</button>
</div>
<div
id="modal-name"
data-modal-target
class="hidden">
<div class="flex items-center justify-center fixed inset-0 z-50">
<div
data-modal-close
data-modal-overlay
tabindex="-1"
data-class-in="opacity-50"
data-class-out="opacity-0"
class="opacity-0 fixed inset-0 w-full z-40 transition-opacity duration-300 bg-black select-none"></div>
<div
data-modal-wrapper
data-class-in="opacity-100 translate-y-0"
data-class-out="opacity-0 translate-y-5"
class="opacity-0 translate-y-5 w-full z-50 overflow-auto max-w-md max-h-screen scrolling-touch transition-all duration-300 bg-white flex flex-col transform shadow-xl rounded-md m-5">
<div class="flex items-center justify-between border-b p-6">
<h3>
Headline
</h3>
<button
data-modal-close
aria-label="Close"
type="button"
class="text-gray-700 hover:text-black focus:text-black transition ease-in-out duration-150 ml-auto">
<svg class="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke="currentColor"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12" /></svg>
<span class="sr-only">Close</span>
</button>
</div>
<div class="relative overflow-x-hidden overflow-y-auto h-full flex-grow p-5">
<p class="mb-4">
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Rem in aliquid nulla, sed veritatis, officiis ea aut natus quas voluptates perferendis ratione modi ab qui omnis cum labore alias eos.
</p>
<div class="mb-4">
<label for="example" class="block mb-2">Autofocus when opening modal</label>
<input type="text" name="example" id="example" placeholder="Example" class="shadow appearance-none border rounded w-full py-2 px-3 text-gray-700 leading-tight focus:shadow-outline" data-modal-input-focus autofocus>
</div>
<div class="text-right">
<button
data-modal-close
type="button"
class="underline">
Close Modal
</button>
or [esc] key
</div>
</div>
</div>
</div>
</div>
<div class="mb-4">
<a
href="#modal-full-screen"
aria-expanded="false">
Open modal full screen
</a>
</div>
<div
id="modal-full-screen"
data-modal-target
class="hidden">
<div class="flex items-center justify-center fixed inset-0 z-50">
<div
data-modal-close
data-modal-overlay
tabindex="-1"
data-class-in="opacity-50"
data-class-out="opacity-0"
class="opacity-0 fixed inset-0 w-full z-40 transition-opacity duration-300 bg-black select-none"></div>
<div
data-modal-wrapper
data-class-in="opacity-100 translate-y-0"
data-class-out="opacity-0 translate-y-5"
class="opacity-0 translate-y-5 w-full h-full z-50 overflow-auto scrolling-touch transition-all duration-300 bg-white flex flex-col transform">
<div class="flex items-center justify-between p-6">
<button
data-modal-close
aria-label="Close"
type="button"
class="text-gray-700 hover:text-black focus:text-black transition ease-in-out duration-150 ml-auto">
<svg class="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke="currentColor">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12" />
</svg>
<span class="sr-only">Close</span>
</button>
</div>
<div class="relative overflow-x-hidden overflow-y-auto h-full flex flex-col justify-center flex-grow p-5 w-full max-w-xl mx-auto">
<p class="mb-4">
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Rem in aliquid nulla, sed veritatis, officiis ea aut natus quas voluptates perferendis ratione modi ab qui omnis cum labore alias eos.
</p>
<div class="text-right">
<button
data-modal-close
type="button"
class="underline">
Close Modal
</button>
or [esc] key
</div>
</div>
</div>
</div>
</div>
<div class="mb-4">
<button
data-modal-trigger
aria-controls="drawer-name"
aria-expanded="false"
type="button">
Open modal drawer-style right side
</button>
</div>
<div
id="drawer-name"
data-modal-target
class="hidden absolute inset-0 overflow-hidden">
<div
data-modal-close
data-modal-overlay
tabindex="-1"
data-class-in="opacity-50"
data-class-out="opacity-0"
class="fixed inset-0 w-full z-40 opacity-0 transition-opacity duration-500 bg-black select-none"></div>
<div
data-modal-wrapper
data-class-in="translate-x-0"
data-class-out="translate-x-full"
class="fixed top-0 right-0 bottom-0 w-10/12 h-full max-w-md z-50 overflow-auto scrolling-touch transition-transform duration-500 bg-white flex flex-col shadow-xl transform translate-x-full">
<div class="flex items-center justify-between border-b p-6">
<h3>
Headline
</h3>
<button
data-modal-close
class="text-gray-700 hover:text-black focus:text-black transition ease-in-out duration-150 ml-auto" aria-label="Close">
<svg class="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke="currentColor">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12" />
</svg>
<span class="sr-only">Close</span>
</button>
</div>
<div class="relative h-full flex-grow overflow-x-hidden overflow-y-auto p-6">
<p>
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Rem in aliquid nulla, sed veritatis, officiis ea aut
natus quas voluptates perferendis ratione modi ab qui omnis cum labore alias eos.
</p>
<div class="text-right">
<button
data-modal-close
type="button"
class="underline">
Close Drawer
</button>
or [esc] key
</div>
</div>
</div>
</div>
<div class="mb-4">
<button
data-modal-trigger
aria-controls="drawer-name-left"
aria-expanded="false"
type="button">
Open modal drawer-style left side
</button>
</div>
<div
id="drawer-name-left"
data-modal-target
class="hidden absolute inset-0 overflow-hidden">
<div
data-modal-close
data-modal-overlay
tabindex="-1"
data-class-in="opacity-50"
data-class-out="opacity-0"
class="fixed inset-0 w-full z-40 opacity-0 transition-opacity duration-500 bg-black select-none"></div>
<div
data-modal-wrapper
data-class-in="translate-x-0"
data-class-out="-translate-x-full"
class="fixed top-0 left-0 bottom-0 w-10/12 h-full max-w-md z-50 overflow-auto scrolling-touch transition-transform duration-500 bg-white flex flex-col shadow-xl transform -translate-x-full">
<div class="flex items-center justify-between border-b p-6">
<h3>
Headline
</h3>
<button
data-modal-close
class="text-gray-700 hover:text-black focus:text-black transition ease-in-out duration-150 ml-auto" aria-label="Close">
<svg class="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke="currentColor">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12" />
</svg>
<span class="sr-only">Close</span>
</button>
</div>
<div class="relative h-full flex-grow overflow-x-hidden overflow-y-auto p-6">
<p class="mb-4">
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Rem in aliquid nulla, sed veritatis, officiis ea aut
natus quas voluptates perferendis ratione modi ab qui omnis cum labore alias eos.
</p>
<div class="mb-4">
<label for="example" class="block mb-2">Autofocus when opening modal</label>
<input type="text" name="example" id="example" placeholder="Example" class="shadow appearance-none border rounded w-full py-2 px-3 text-gray-700 leading-tight focus:shadow-outline" data-modal-input-focus autofocus>
</div>
<div class="text-right">
<button
data-modal-close
type="button"
class="underline">
Close Drawer
</button>
or [esc] key
</div>
</div>
</div>
</div>
<script>
/**
* Modal
* modal.openModal('modal-name');
*/
const modal = (() => {
var publicAPIs = {};
//
// Settings
//
var settings = {
speedOpen: 50,
speedClose: 250,
toggleClass: 'hidden',
selectorTarget: '[data-modal-target]',
selectorTrigger: '[data-modal-trigger]',
selectorClose: '[data-modal-close]',
selectorOverlay: '[data-modal-overlay]',
selectorWrapper: '[data-modal-wrapper]',
selectorInputFocus: '[data-modal-input-focus]'
};
/**
* Element.closest() polyfill
* https://developer.mozilla.org/en-US/docs/Web/API/Element/closest#Polyfill
*/
if (!Element.prototype.closest) {
if (!Element.prototype.matches) {
Element.prototype.matches = Element.prototype.msMatchesSelector || Element.prototype.webkitMatchesSelector;
}
Element.prototype.closest = function (s) {
var el = this;
var ancestor = this;
if (!document.documentElement.contains(el)) return null;
do {
if (ancestor.matches(s)) return ancestor;
ancestor = ancestor.parentElement;
} while (ancestor !== null);
return null;
};
}
// Trap Focus
// https://hiddedevries.nl/en/blog/2017-01-29-using-javascript-to-trap-focus-in-an-element
//
function trapFocus(element) {
var focusableEls = element.querySelectorAll('a[href]:not([disabled]), button:not([disabled]), textarea:not([disabled]), input[type="text"]:not([disabled]), input[type="radio"]:not([disabled]), input[type="checkbox"]:not([disabled]), select:not([disabled])');
var firstFocusableEl = focusableEls[0];
var lastFocusableEl = focusableEls[focusableEls.length - 1];
var KEYCODE_TAB = 9;
element.addEventListener('keydown', function(e) {
var isTabPressed = (e.key === 'Tab' || e.keyCode === KEYCODE_TAB);
if (!isTabPressed) {
return;
}
if ( e.shiftKey ) /* shift + tab */ {
if (document.activeElement === firstFocusableEl) {
lastFocusableEl.focus();
e.preventDefault();
}
} else /* tab */ {
if (document.activeElement === lastFocusableEl) {
firstFocusableEl.focus();
e.preventDefault();
}
}
});
}
//
// Methods
//
// Toggle accessibility
var toggleccessibility = function (event) {
if (event.getAttribute('aria-expanded') === 'true') {
event.setAttribute('aria-expanded', false);
} else {
event.setAttribute('aria-expanded', true);
}
};
// Open Modal
var openModal = function (event, destination) {
var target = destination;
// Check whether the modal is triggered automatically via modal.openModal
if (typeof event === 'string') {
target = document.getElementById(event);
// If modal is triggered via modal.openModal we add a data attribute
// to know whether toggleccessibility() should be used when closeModal
// as there is no button used
if (target) {
target.setAttribute('data-auto-trigger', '');
}
}
// If target doesn't exist, bail
if (!target) return;
// Find target
var overlay = target.querySelector(settings.selectorOverlay),
wrapper = target.querySelector(settings.selectorWrapper),
input = target.querySelector(settings.selectorInputFocus);
// Make it active and remoe hidden class
target.classList.remove(settings.toggleClass);
// Make body overflow hidden so it's not scrollable
document.documentElement.style.overflow = 'hidden';
// Toggle accessibility
// Check whether the modal is triggered automatically via modal.openModal
if (typeof event !== 'string') {
toggleccessibility(event);
}
// Show wrapper
setTimeout(function () {
// Show overlay
if (overlay) {
var overlayIn = overlay.getAttribute('data-class-in').split(' '),
overlayOut = overlay.getAttribute('data-class-out').split(' ');
overlay.classList.remove(...overlayOut);
overlay.classList.add(...overlayIn);
}
// Show drawer
if (wrapper) {
var wrapperIn = wrapper.getAttribute('data-class-in').split(' '),
wrapperOut = wrapper.getAttribute('data-class-out').split(' ');
wrapper.classList.remove(...wrapperOut);
wrapper.classList.add(...wrapperIn);
}
// Focus on input
if (input) {
input.focus();
}
// Trap focus
trapFocus(target);
}, settings.speedOpen);
};
// Close Modal
var closeModal = function (event) {
// Find target
var closestParent = event.closest(settings.selectorTarget),
trigger = document.querySelector('[aria-controls="' + closestParent.id + '"'),
overlay = closestParent.querySelector(settings.selectorOverlay),
wrapper = closestParent.querySelector(settings.selectorWrapper);
if (trigger === null) {
trigger = document.querySelector('a[href="#' + closestParent.id + '"');
}
// Hide overlay
if (overlay) {
var overlayIn = overlay.getAttribute('data-class-in').split(' '),
overlayOut = overlay.getAttribute('data-class-out').split(' ');
overlay.classList.remove(...overlayIn);
overlay.classList.add(...overlayOut);
}
// Hide wrapper
if (wrapper) {
var wrapperIn = wrapper.getAttribute('data-class-in').split(' '),
wrapperOut = wrapper.getAttribute('data-class-out').split(' ');
wrapper.classList.remove(...wrapperIn);
wrapper.classList.add(...wrapperOut);
}
// Remove body overflow hidden
document.documentElement.style.overflow = '';
// Toggle accessibility
// Check whether the modal was triggered automatically via modal.openModal
if (closestParent.hasAttribute('data-auto-trigger')) {
closestParent.removeAttribute('data-auto-trigger');
} else {
toggleccessibility(trigger);
}
// Make it not active
setTimeout(function () {
closestParent.classList.add(settings.toggleClass);
}, settings.speedClose);
};
// Click Handler
var clickHandler = function (event) {
// Find toggle element
var toggle = event.target,
trigger,
target,
closestButton = toggle.closest('button'),
closest = toggle.closest('a'),
open = null;
// Check whether toggle is:
// 1. <button data-modal-trigger aria-controls="modal-name" ...
// 2. <button data-modal-trigger aria-controls="modal-name"><span>...</span> ...
// 3. <a href="#modal-name" ...
// 4. <a href="#modal-name"><span>...</span> ...
// 5. null
if ( toggle.hasAttribute('data-modal-trigger') && (toggle.hasAttribute('aria-controls')) ) {
trigger = toggle.closest(settings.selectorTrigger);
target = document.getElementById(trigger.getAttribute('aria-controls'));
open = true;
} else if ( closestButton && closestButton.hasAttribute('data-modal-trigger') && (closestButton.hasAttribute('aria-controls')) ) {
trigger = toggle.closest(settings.selectorTrigger);
target = document.getElementById(trigger.getAttribute('aria-controls'));
open = true;
} else if ( (toggle.hash) && (toggle.hash.substr(1).indexOf('modal') > -1) ) {
trigger = toggle;
target = document.getElementById(toggle.hash.substr(1));
open = true;
} else if ( closest && (closest.hash) && (closest.hash.substr(1).indexOf('modal') > -1) ) {
trigger = closest;
target = document.getElementById(closest.hash.substr(1));
open = true;
}
var close = toggle.closest(settings.selectorClose);
// Open modal when the open button is clicked
if (open && target) {
openModal(trigger, target);
}
// Close modal when the close button (or overlay area) is clicked
if (close) {
closeModal(close);
}
// Prevent default link behavior
if (open || close) {
event.preventDefault();
}
};
// Keydown Handler, handle Escape button
var keydownHandler = function (event) {
if (event.key === 'Escape' || event.keyCode === 27) {
// Find all possible modals
var modals = document.querySelectorAll(settings.selectorTarget),
i;
// Find active modals and close them when escape is clicked
for (i = 0; i < modals.length; ++i) {
if (!modals[i].classList.contains(settings.toggleClass)) {
closeModal(modals[i]);
}
}
}
};
publicAPIs.init = function () {
//
// Inits & Event Listeners
//
document.addEventListener('click', clickHandler, false);
document.addEventListener('keydown', keydownHandler, false);
};
publicAPIs.openModal = openModal;
publicAPIs.closeModal = closeModal;
return publicAPIs;
})();
document.addEventListener("DOMContentLoaded", function() {
modal.init()
});
</script>
</body>
</html>