.gallery
.gallery__intro
h1.gallery__title Lightbox, is that still a thing?
p Well I needed a simple, fullscreen, css based, touch/keyboard friendly lightbox/slideshow and here it is! The script takes in a selector, queries it for all items and creates a lightbox/slideshow out of them.
p this is the most basic version. The next version will be animated, probably with the popmotion library.
p Any tips to make this script a bit more 'pluggable' are most welcome in the comments!
ul
li.gallery__item
a.gallery__itemLink(href="https://farm5.staticflickr.com/4390/36837410552_88e7054780_k_d.jpg" data-rel='aiLightbox')
img.gallery__itemThumb(src="https://farm5.staticflickr.com/4390/36837410552_fbeb6d1cdc_q_d.jpg")
li.gallery__item
a.gallery__itemLink(href="https://farm5.staticflickr.com/4357/36172707494_53c0f25d98_h_d.jpg" data-rel='aiLightbox')
img.gallery__itemThumb(src="https://farm5.staticflickr.com/4357/36172707494_2b8ea05f04_q_d.jpg")
li.gallery__item
a.gallery__itemLink(href="https://farm5.staticflickr.com/4347/36857337771_4092a556e7_k_d.jpg" data-rel='aiLightbox')
img.gallery__itemThumb(src="https://farm5.staticflickr.com/4347/36857337771_d1bb7f798a_q_d.jpg")
li.gallery__item
a.gallery__itemLink(href="https://farm5.staticflickr.com/4421/36997408855_a0a13bae79_k_d.jpg" data-rel='aiLightbox')
img.gallery__itemThumb(src="https://farm5.staticflickr.com/4421/36997408855_bfdb9f1fba_q_d.jpg")
li.gallery__item
a.gallery__itemLink(href="https://farm5.staticflickr.com/4388/36996947395_8577ae759c_k_d.jpg" data-rel='aiLightbox')
img.gallery__itemThumb(src="https://farm5.staticflickr.com/4388/36996947395_db3c348ccb_q_d.jpg")
li.gallery__item
a.gallery__itemLink(href="https://farm5.staticflickr.com/4379/36844732181_a6b854636e_k_d.jpg" data-rel='aiLightbox')
img.gallery__itemThumb(src="https://farm5.staticflickr.com/4379/36844732181_78bd19e9eb_q_d.jpg")
li.gallery__item
a.gallery__itemLink(href="https://farm5.staticflickr.com/4333/36825444362_d157245677_k_d.jpg" data-rel='aiLightbox')
img.gallery__itemThumb(src="https://farm5.staticflickr.com/4333/36825444362_4291ce6d1e_q_d.jpg")
li.gallery__item
a.gallery__itemLink(href="https://farm5.staticflickr.com/4348/36844765631_1f3df298d8_k_d.jpg" data-rel='aiLightbox')
img.gallery__itemThumb(src="https://farm5.staticflickr.com/4348/36844765631_03e90607bd_q_d.jpg")* {
box-sizing: border-box;
}
@import 'breakpoint';
body {
margin: 0;
height: 100vh;
display: flex;
justify-content: center;
align-items: center;
background: #ececec;
font-family: 'Roboto Slab', 'Courier New', Courier, monospace;
}
h1,
h2,
h3,
h4, {
font-family: 'Montserrat', sans-serif;
font-weight: 800;
}
.gallery {
& {
max-width: calc((150px*2) + 1em);
padding: 3em 0;
color: #333;
@include breakpoint(768px) {
max-width: calc((150px*4) + 3em);
}
}
&__title {
font-size: 2em;
padding-bottom: 0.25em;
border-bottom: 1px solid #666;
}
&__intro {
margin: 0 0 2em;
p {
line-height: 1.5em;
}
}
ul {
list-style: none;
margin: 0;
padding: 0;
width: 100%;
display: flex;
justify-content: space-between;
flex-wrap: wrap;
}
li {
margin-bottom: 1em;
border-radius: 3px;
box-shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
transform: scale(1);
transition: all 0.3s cubic-bezier(.25,.8,.25,1);
&:hover {
transform: scale(1.0221);
box-shadow: 0 14px 28px rgba(0,0,0,0.25), 0 10px 10px rgba(0,0,0,0.22);
}
}
img {
display: block;
border-radius: 3px;
}
}
.m-lightbox {
& {
position: fixed;
top: 0;
left: 0;
width: 100vw;
height: 100vh;
background: rgba(#fff, 0.9);
z-index: 1;
opacity: 0;
transform: scale(0.8);
transition: opacity 0.3s ease-out, transform 0.3s ease-out;
pointer-events: none;
}
&.is-active {
opacity: 1;
transform: scale(1);
z-index: 101;
pointer-events: auto;
}
&__slider {
list-style: none;
margin: 0;
padding: 0;
width: 100vw;
height: 100vh;
}
&__slide {
position: absolute;
top: 0;
left: 0;
width: 100vw;
height: 100vh;
display: flex;
justify-content: center;
align-items: center;
img {
display: block;
max-width: calc(100vw - 2em);
max-height: 90vh;
opacity: 0;
transition: opacity 0.3s ease;
@include breakpoint(768px) {
max-width: calc(100vw - 116px);
max-height: 90vh;
}
}
&.is-loaded.is-active {
img {
opacity: 1;
}
.spinner {
display: none;
}
}
}
button {
position: absolute;
margin: 0;
padding: 0;
z-index: 102;
background: transparent;
border: none;
cursor: pointer;
}
&__close {
top: 1em;
right: 1em;
}
&__nextPrev {
top: 50%;
transform: translateY(-50%);
width: 42px;
height: 42px;
visibility: hidden;
opacity: 0;
transform: scale(0.5);
transition:
opacity 0.3s ease-out,
transform 0.3s ease-out;
&.is-active {
visibility: hidden;
transform: scale(1);
opacity: 1;
@include breakpoint(1024px) {
visibility: visible;
}
}
svg {
display: block;
width: 100%;
height: auto;
}
&--next {
right: 1em;
}
&--prev {
left: 1em;
}
&:hover {
cursor: pointer;
}
}
&__counter {
position: absolute;
bottom: 1em;
left: 50%;
transform: translateX(-50%);
color: #333;
font-weight: 700;
}
}
.spinner {
& {
width: 40px;
height: 40px;
position: absolute;
top: 50%;
left: 50%;
transform: translateY(-50%) translateX(-50%);
}
&::before,
&::after {
content: '';
width: 100%;
height: 100%;
border-radius: 50%;
background-color: #333;
opacity: 0.6;
position: absolute;
top: 0;
left: 0;
animation: sk-bounce 2.0s infinite ease-in-out;
}
&::after {
animation-delay: -1.0s;
}
}
@keyframes sk-bounce {
0%, 100% {
transform: scale(0.0);
} 50% {
transform: scale(1.0);
}
}
@import url('https://fonts.googleapis.com/css?family=Montserrat:800|Roboto+Slab:400,700');class Lightbox {
constructor({
lazyload = true,
counter = true,
arrows = true,
slideSpeed = 400,
...options
}) {
if(!options.selector) {
console.error('Please add a valid css selector with the option "selector:"');
} else if (typeof options.selector !== 'string') {
console.error(options.selector, `is not a string but a(n) ${typeof options.selector}`)
} else {
this.selector = options.selector;
this.lazyload = lazyload;
this.counter = counter;
this.arrows = arrows;
this.slideSpeed = slideSpeed;
this.links = Array.from(document.querySelectorAll(`a${options.selector}`));
this.offsets = [];
this.nodes = {};
this.imageIndex = null;
if (this.links.length > 0) {
this.createLightbox();
this.createNodes();
this.eventListeners(this.links);
} else {
console.error(`The selector '${this.selector}' did not yield results. Please make sure the selector is applied on an 'a' element.`)
}
}
};
goTo = (num, event) => {
const { items, counter, lightboxNode } = this.nodes;
if(this.counter) {
counter.innerHTML = `${num + 1}/${this.links.length}`;
}
const spinner = `<div class="spinner"></div>`;
const img = items[num].querySelector('img');
if(this.lazyload) {
const src = img.getAttribute('data-src');
items[num].insertAdjacentHTML('beforeend', spinner);
// Set image attribute
img.setAttribute('src', src);
// Add class to slide item when image is completely loaded. Must be in this order.
const imgLoad = new Image();
imgLoad.onload = () => {
items[num].classList.add('is-active');
items[num].classList.add('is-loaded');
}
imgLoad.src = src;
} else {
items[num].classList.add('is-active');
items[num].classList.add('is-loaded');
}
// Change the offset for each slide based on its index and the current index.
for (let i = 0; i < this.offsets.length; i++) {
const offset = this.offsets[i] - (num * 100);
items[i].style.transform = `translateX(${offset}vw)`;
// Add transition type based on which event was triggered
if(event) {
if(event.target.className === 'gallery__itemThumb') {
items[i].style.transition = `opacity 0.4s ease`;
} else {
items[i].style.transition = `transform ${this.slideSpeed}ms ease-out`;
}
}
}
};
createNodes = (links) => {
// Find all the lightbox nodes and add them to an object
Object.assign(this.nodes, {
lightboxNode: document.querySelector('.m-lightbox'),
items: Array.from(document.querySelectorAll('.m-lightbox__slide')),
next: document.querySelector('.m-lightbox__nextPrev--next'),
prev: document.querySelector('.m-lightbox__nextPrev--prev'),
close: document.querySelector('.m-lightbox__close'),
});
Object.assign(this.nodes, {
counter: document.querySelector('.m-lightbox__counter'),
});
};
eventListeners = (links) => {
const { lightboxNode, items, next, prev, close } = this.nodes;
links.forEach((item, index) => {
item.addEventListener('click', (e) => {
e.preventDefault();
lightboxNode.classList.add('is-active');
document.body.style.overflow = 'hidden';
this.imageIndex = index;
this.goTo(index, e);
this.setNav(index);
});
});
next.addEventListener('click', (e) => {
this.goToNext(e);
});
prev.addEventListener('click', (e) => {
this.goToPrev(e);
});
close.addEventListener('click', () => {
this.closeBox();
});
document.onkeydown = (e) => {
switch (e.keyCode) {
case 37:
this.goToPrev(e);
break;
case 39:
this.goToNext(e);
break;
case 27:
this.closeBox();
break;
};
};
items.forEach((item) => {
// https://gist.github.com/Tam/d44c87b3daeb07b15984ddc6127d4e34
new Swipe(item.querySelector('img'), (e, direction) => {
e.preventDefault();
switch (direction) {
case "up":
// Handle Swipe Up
break;
case "down":
// Handle Swipe Down
break;
case "left":
this.goToNext(e);
break;
case "right":
this.goToPrev(e);
break;
}
});
})
};
setNav = (index) => {
if(this.arrows) {
const { next, prev } = this.nodes;
if (index < (this.links.length - 1)) {
next.classList.add('is-active');
}
if (index >= (this.links.length - 1)) {
next.classList.remove('is-active');
}
if (index > 0) {
prev.classList.add('is-active');
}
if(index <= 0) {
prev.classList.remove('is-active');
}
}
};
goToNext = (e) => {
const { items } = this.nodes;
if (this.imageIndex < items.length - 1) {
this.goTo((this.imageIndex + 1), e);
setTimeout(() => {
items[this.imageIndex - 1].classList.remove('is-active');
}, this.slideSpeed)
this.imageIndex += 1;
this.setNav(this.imageIndex);
}
};
goToPrev = (e) => {
const { items } = this.nodes;
if (this.imageIndex > 0) {
this.goTo((this.imageIndex - 1), e);
setTimeout(() => {
items[this.imageIndex + 1].classList.remove('is-active');
}, this.slideSpeed)
this.imageIndex -= 1;
this.setNav(this.imageIndex);
}
};
closeBox = () => {
const { lightboxNode, items } = this.nodes;
lightboxNode.classList.remove('is-active');
document.body.style.overflow = 'auto';
setTimeout(() => {
items.forEach(item => item.classList.remove('is-active'));
}, this.slideSpeed);
};
renderImages = (images) => {
const imagesLinks = images.map((item, index) => {
const offset = index * 100;
this.offsets.push(offset);
const imageSrc = item.getAttribute('href');
return `
<li class='m-lightbox__slide' style='transform: translateX(${offset}vw)'>
${this.lazyload ? `
<img data-src='${imageSrc}'/>
` : `
<img src='${imageSrc}'/>
`}
</li>
`;
});
return imagesLinks;
};
createLightbox = () => {
const lightbox = `
<div class='m-lightbox'>
<div class='m-lightbox__controls'>
<button class='m-lightbox__close'>
<svg fill="#000000" height="24" viewBox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg">
<path d="M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z"/>
<path d="M0 0h24v24H0z" fill="none"/>
</svg>
</button>
<button class='m-lightbox__nextPrev m-lightbox__nextPrev--prev'>
<svg fill="#000000" height="24" viewBox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg">
<path d="M0 0h24v24H0z" fill="none"/>
<path d="M20 11H7.83l5.59-5.59L12 4l-8 8 8 8 1.41-1.41L7.83 13H20v-2z"/>
</svg>
</button>
<button class='m-lightbox__nextPrev m-lightbox__nextPrev--next'>
<svg fill="#000000" height="24" viewBox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg">
<path d="M0 0h24v24H0z" fill="none"/>
<path d="M12 4l-1.41 1.41L16.17 11H4v2h12.17l-5.58 5.59L12 20l8-8z"/>
</svg>
</button>
</div>
<ul class='m-lightBox__slider'>
${this.renderImages(this.links).join('')}
</ul>
<div class='m-lightbox__counter'>
</div>
</div>
`;
document.body.insertAdjacentHTML('beforeend', lightbox);
};
}
const lb = new Lightbox({
selector: '[data-rel="aiLightbox"]', // string
lazyload: true, // boolean
arrows: true, // boolean
counter: true, // boolean
slideSpeed: 500, //number(ms)
});
External CSS
This Pen doesn't use any external CSS resources.