ghost-theme-sd.ai/assets/js/lightbox.js

104 lines
3.5 KiB
JavaScript
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function lightbox(trigger) {
var onThumbnailsClick = function (e) {
e.preventDefault();
var items = [];
var index = 0;
var prevSibling = e.target.closest('.kg-card').previousElementSibling;
while (prevSibling && (prevSibling.classList.contains('kg-image-card') || prevSibling.classList.contains('kg-gallery-card'))) {
var prevItems = [];
prevSibling.querySelectorAll('img').forEach(function (item) {
prevItems.push({
src: item.getAttribute('src'),
msrc: item.getAttribute('src'),
w: item.getAttribute('width'),
h: item.getAttribute('height'),
el: item,
})
index += 1;
});
prevSibling = prevSibling.previousElementSibling;
items = prevItems.concat(items);
}
if (e.target.classList.contains('kg-image')) {
items.push({
src: e.target.getAttribute('src'),
msrc: e.target.getAttribute('src'),
w: e.target.getAttribute('width'),
h: e.target.getAttribute('height'),
el: e.target,
});
} else {
var reachedCurrentItem = false;
e.target.closest('.kg-gallery-card').querySelectorAll('img').forEach(function (item) {
items.push({
src: item.getAttribute('src'),
msrc: item.getAttribute('src'),
w: item.getAttribute('width'),
h: item.getAttribute('height'),
el: item,
});
if (!reachedCurrentItem && item !== e.target) {
index += 1;
} else {
reachedCurrentItem = true;
}
});
}
var nextSibling = e.target.closest('.kg-card').nextElementSibling;
while (nextSibling && (nextSibling.classList.contains('kg-image-card') || nextSibling.classList.contains('kg-gallery-card'))) {
nextSibling.querySelectorAll('img').forEach(function (item) {
items.push({
src: item.getAttribute('src'),
msrc: item.getAttribute('src'),
w: item.getAttribute('width'),
h: item.getAttribute('height'),
el: item,
})
});
nextSibling = nextSibling.nextElementSibling;
}
var pswpElement = document.querySelectorAll('.pswp')[0];
var options = {
bgOpacity: 0.9,
closeOnScroll: true,
fullscreenEl: false,
history: false,
index: index,
shareEl: false,
zoomEl: false,
getThumbBoundsFn: function(index) {
var thumbnail = items[index].el,
pageYScroll = window.pageYOffset || document.documentElement.scrollTop,
rect = thumbnail.getBoundingClientRect();
return {x:rect.left, y:rect.top + pageYScroll, w:rect.width};
}
}
var gallery = new PhotoSwipe(pswpElement, PhotoSwipeUI_Default, items, options);
gallery.init();
return false;
};
var triggers = document.querySelectorAll(trigger);
triggers.forEach(function (trig) {
trig.addEventListener('click', function (e) {
onThumbnailsClick(e);
});
});
}