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n-carousel.rollup.js
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n-carousel.rollup.js
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function e(e,t){(null==t||t>e.length)&&(t=e.length);for(var n=0,r=new Array(t);n<t;n++)r[n]=e[n];return r}function t(t,n){var r="undefined"!=typeof Symbol&&t[Symbol.iterator]||t["@@iterator"];if(r)return (r=r.call(t)).next.bind(r);if(Array.isArray(t)||(r=function(t,n){if(t){if("string"==typeof t)return e(t,n);var r=Object.prototype.toString.call(t).slice(8,-1);return "Object"===r&&t.constructor&&(r=t.constructor.name),"Map"===r||"Set"===r?Array.from(t):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?e(t,n):void 0}}(t))||n&&t&&"number"==typeof t.length){r&&(t=r);var o=0;return function(){return o>=t.length?{done:!0}:{done:!1,value:t[o++]}}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}if(!("onscrollend"in window)){var n=function(e,t,n){var r=e[t];e[t]=function(){var e=Array.prototype.slice.apply(arguments,[0]);r.apply(this,e),e.unshift(r),n.apply(this,e);};},r=function(e,t,n,r){if("scroll"==t||"scrollend"==t){var o=this,s=l.get(o);if(void 0===s){var c=0;s={scrollListener:function(e){clearTimeout(c),c=setTimeout(function(){a.size?setTimeout(s.scrollListener,100):(o.dispatchEvent(i),c=0);},100);},listeners:0},e.apply(o,["scroll",s.scrollListener]),l.set(o,s);}s.listeners++;}},o=function(e,t,n){if("scroll"==t||"scrollend"==t){var r=this,o=l.get(r);void 0!==o&&(o[t]--,--o.listeners>0||(e.apply(r,["scroll",o.scrollListener]),l.delete(r)));}},i=new Event("scrollend"),a=new Set;document.addEventListener("touchstart",function(e){for(var n,r=t(e.changedTouches);!(n=r()).done;)a.add(n.value.identifier);},{passive:!0}),document.addEventListener("touchend",function(e){for(var n,r=t(e.changedTouches);!(n=r()).done;)a.delete(n.value.identifier);},{passive:!0});var l=new WeakMap;n(Element.prototype,"addEventListener",r),n(window,"addEventListener",r),n(document,"addEventListener",r),n(Element.prototype,"removeEventListener",o),n(window,"removeEventListener",o),n(document,"removeEventListener",o);}
// import './node_modules/n-modal/n-modal.js';
(function() {
const ceilingWidth = el => Math.ceil(parseFloat(getComputedStyle(el).width));
const ceilingHeight = el => Math.ceil(parseFloat(getComputedStyle(el).height));
const focusableElements = 'button, [href], input, select, textarea, details, summary, video, [tabindex]:not([tabindex="-1"])';
// const _focusableElementsString = 'a[href],area[href],input:not([disabled]),select:not([disabled]),textarea:not([disabled]),button:not([disabled]),details,summary,iframe,object,embed,[contenteditable]';
function isElementInViewport(el) {
let rect = el.getBoundingClientRect();
return (rect.top >= 0 && rect.left >= 0 && rect.bottom <= (window.innerHeight || document.documentElement.offsetHeight) /* or $(window).height() */ && rect.right <= (window.innerWidth || document.documentElement.offsetWidth) /* or $(window).width() */ );
}
const default_duration = 500;
const default_interval = 4000;
const isChrome = !!navigator.userAgent.match("Chrome");
const isSafari = navigator.userAgent.match(/Safari/) && !isChrome;
const isEndless = el => el.children.length > 2 && el.parentElement.classList.contains("n-carousel--endless");
const isFullScreen = () => { return !!(document.webkitFullscreenElement || document.fullscreenElement) };
const isModal = el => { return el.closest(".n-carousel").classList.contains('n-carousel--overlay') };
const isVertical = el => el.closest(".n-carousel").matches(".n-carousel--vertical");
const isAutoHeight = el => el.closest(".n-carousel").matches(".n-carousel--auto-height");
const indexControls = index => {
let controls_by_class = index.querySelectorAll('.n-carousel__control');
return (controls_by_class.length > 0) ? controls_by_class : index.querySelectorAll('a, button');
};
const scrollEndAction = carousel => {
carousel = carousel.target || carousel;
// console.log('scroll end', carousel);
let index = Math.abs(Math.round(
(isVertical(carousel) ? carousel.scrollTop / (carousel.offsetHeight - parseFloat(getComputedStyle(carousel).paddingBlockStart) - parseFloat(getComputedStyle(carousel).paddingBlockEnd)) : carousel.scrollLeft / (carousel.offsetWidth - parseFloat(getComputedStyle(carousel).paddingInlineStart) - parseFloat(getComputedStyle(carousel).paddingInlineEnd))), 2));
// console.log('scroll end', index);
let slide = carousel.children[index];
if (!!carousel.parentNode.sliding || (carousel.dataset.next && parseInt(carousel.dataset.next) !== [...carousel.children].indexOf(slide))) {
return;
}
// console.log(index);
carousel.parentNode.dataset.sliding = true;
delete carousel.dataset.next;
observersOff(carousel);
carousel.scrollLeft;
carousel.scrollTop;
let interval = 10; // Get rid of this magic number by timeout comparison with previous scroll offset
let timeout_function = () => {
// console.log(entry, entry.target, 'is intersecting at', entry.target.parentElement.scrollLeft, entry.target.parentElement.scrollTop);
// if (Math.abs(x - carousel.scrollLeft) >= 1) {
// console.log('intersection continue', x, carousel.scrollLeft, y, carousel.scrollLeft);
// clearTimeout(timeout);
// timeout = setTimeout(timeout_function, interval);
// return;
// }
// console.log('intersection ', x, carousel.scrollLeft, y, carousel.scrollLeft);
let index = [...carousel.children].indexOf(slide);
if (isAutoHeight(carousel)) {
let old_height = parseFloat(getComputedStyle(carousel).height);
let new_height;
let offset_y = 0;
let lastScrollX = carousel.scrollLeft;
let lastScrollY = carousel.scrollTop;
if (isVertical(carousel)) {
let scroll_offset = carousel.scrollTop;
slide.style.height = 'auto';
let computed_max_height = getComputedStyle(carousel).maxHeight;
let max_height = computed_max_height.match(/px/) ? Math.ceil(parseFloat(computed_max_height)) : 99999;
// new_height = Math.min(slide.scrollHeight, max_height);
new_height = Math.min(Math.ceil(parseFloat(getComputedStyle(slide).height)), max_height);
// new_height = slide.scrollHeight;
if (isModal(carousel) || isFullScreen()) {
old_height = new_height = carousel.offsetHeight;
}
slide.style.height = '';
carousel.scrollTop = scroll_offset;
offset_y = index * new_height - carousel.scrollTop;
} else {
new_height = nextSlideHeight(slide); // ?
// console.log(lastScrollX);
if (!!lastScrollX) { // Because RTL auto height landing on first slide creates an infinite intersection observer loop
scrollTo(carousel, lastScrollX, lastScrollY);
}
}
if (old_height === new_height) {
new_height = false;
}
// interSecObs.unobserve(slide);
window.requestAnimationFrame(() => {
scrollAnimate(carousel, 0, offset_y, new_height, old_height).then(() => {});
});
} else {
// console.log(carousel);
window.requestAnimationFrame(() => {
updateCarousel(carousel);
});
}
};
setTimeout(timeout_function, interval);
};
const hashNavigation = e => { // Hash navigation support
// console.log(e);
if (!!location.hash) {
let el = document.querySelector(location.hash);
let carousel = el?.parentNode;
if (!!carousel && carousel.classList.contains('n-carousel__content') && !carousel.parentNode.closest('.n-carousel__content')) {
let modal_carousel = document.querySelector('.n-carousel--overlay > .n-carousel__content');
if (modal_carousel && modal_carousel !== carousel) {
closeModal(modal_carousel);
// modal_carousel.parentNode.classList.remove('n-carousel--overlay');
}
if (carousel.parentNode.classList.contains('n-carousel--inline')) {
closeModal(carousel);
// carousel.parentNode.classList.add('n-carousel--overlay');
}
if (isSafari) { // Safari has already scrolled and needs to rewind it scroll position in order to animate it
scrollTo(carousel, carousel.offsetWidth * carousel.dataset.x, carousel.offsetHeight * carousel.dataset.y);
}
slideTo(carousel, [...carousel.children].indexOf(el));
window.nCarouselNav = [carousel, location.hash];
}
} else {
if (window.nCarouselNav) { // Previously navigated to a slide
let carousel = window.nCarouselNav[0];
delete window.nCarouselNav;
if (isSafari) { // Safari has already scrolled and needs to rewind it scroll position in order to animate it
scrollTo(carousel, carousel.offsetWidth * carousel.dataset.x, carousel.offsetHeight * carousel.dataset.y);
}
slideTo(carousel, [...carousel.children].indexOf(carousel.querySelector(':scope > :not([id])')));
}
}
};
const nextSlideHeight = el => {
el.style.height = 0;
el.style.overflow = "auto";
const height = el.scrollHeight; // Ceiling when subpixel
el.style.height = el.style.overflow = "";
return height;
};
// const scrollableAncestor = el => {
// el = el.parentNode;
// while (el) {
// if (el.scrollHeight > el.offsetHeight || el.scrollWidth > el.offsetWidth) {
// return el;
// } else {
// el = el.parentNode;
// }
// }
// return false;
// };
const getIndex = el => 1 * (isVertical(el) ? el.dataset.y : el.dataset.x);
const getIndexReal = el => {
let active_slide = el.querySelector(':scope > [aria-current]');
if (active_slide) {
return [...el.children].indexOf(active_slide);
} else {
let hash_slide_index = (!!location.hash) ? [...el.children].indexOf(el.querySelector(`:scope > ${location.hash}`)) : 0;
return (hash_slide_index > -1) ? hash_slide_index : 0;
}
// return active_slide ? [...el.children].indexOf(active_slide) : (el.querySelector(`:scope > ${location.hash}`) || 0);
};
const scrolledAncestor = el => {
el = el.parentNode;
while (el) {
if (el.scrollTop !== 0 || el.scrollLeft !== 0) {
return el;
} else {
el = el.parentNode;
}
}
return false;
};
const scrolledAncestors = el => {
let arr = [];
let a = scrolledAncestor(el);
while (a && typeof a.scrollLeft !== "undefined" && (a.scrollTop !== 0 || a.scrollLeft !== 0)) {
arr.push(a);
a = scrolledAncestor(a);
}
return arr;
};
const isRTL = el => getComputedStyle(el).direction === "rtl";
const toggleFullScreen = el => {
el = el.closest(".n-carousel");
let carousel = el.querySelector(":scope > .n-carousel__content");
const restoreScroll = () => {
if (!isFullScreen()) {
el.nuiAncestors.forEach(el => {
window.requestAnimationFrame(() => {
el.scrollLeft = el.nuiScrollX;
el.scrollTop = el.nuiScrollY;
delete el.nuiScrollX;
delete el.nuiScrollY;
});
});
delete el.nuiAncestors;
el.removeEventListener("webkitfullscreenchange", restoreScroll);
}
};
carousel.togglingFullScreen = true;
if (isFullScreen()) {
// Exit full screen
!!document.exitFullscreen ? document.exitFullscreen() : document.webkitExitFullscreen();
if (isSafari) {
// When exit finishes, update the carousel because on Safari 14, position is wrong or the slide is invisible
setTimeout(() => {
el.style.display = "none";
window.requestAnimationFrame(() => {
el.style.display = "";
});
}, 0);
}
if (isVertical(el) && isAutoHeight(el)) {
let updateExitFullScreen = e => {
setTimeout(() => {
let carousel = el.querySelector(":scope > .n-carousel__content");
// console.log(carousel);
// el.style.removeProperty('--height');
// carousel.style.height = '';
slideTo(carousel, parseInt(carousel.dataset.y));
}, 100);
el.removeEventListener('fullscreenchange', updateExitFullScreen);
};
el.addEventListener('fullscreenchange', updateExitFullScreen);
}
} else {
// Enter full screen
if (isSafari) {
el.nuiAncestors = scrolledAncestors(el);
el.nuiAncestors.forEach(el => {
el.nuiScrollX = el.scrollLeft;
el.nuiScrollY = el.scrollTop;
});
el.addEventListener("webkitfullscreenchange", restoreScroll, false);
}!!el.requestFullscreen ? el.requestFullscreen() : el.webkitRequestFullscreen();
}
};
const scrollStartX = el => el.scrollLeft; // Get correct start scroll position for LTR and RTL
const scrollTo = (el, x, y) => {
el.scrollTo(isRTL(el) ? -1 * Math.abs(x) : x, y); // Scroll to correct scroll position for LTR and RTL
};
const getScroll = el => (el === window ? {
x: el.scrollX,
y: el.scrollY
} : {
x: scrollStartX(el),
y: el.scrollTop
});
let firstFocusableElement = null;
let focusableContent = null;
let lastFocusableElement = null;
const focusHandler = e => {
let isTabPressed = e.key === "Tab" || e.keyCode === 9;
if (!isTabPressed) {
return;
}
if (e.shiftKey) {
// if shift key pressed for shift + tab combination
if (document.activeElement === firstFocusableElement) {
lastFocusableElement.focus(); // add focus for the last focusable element
e.preventDefault();
}
} else {
// if tab key is pressed
if (document.activeElement === lastFocusableElement) {
// if focused has reached to last focusable element then focus first focusable element after pressing tab
firstFocusableElement.focus(); // add focus for the first focusable element
e.preventDefault();
}
}
};
const trapFocus = (modal, off = false) => {
// FROM: https://uxdesign.cc/how-to-trap-focus-inside-modal-to-make-it-ada-compliant-6a50f9a70700
// add all the elements inside modal which you want to make focusable
firstFocusableElement = modal.querySelectorAll(focusableElements)[0]; // get first element to be focused inside modal
focusableContent = modal.querySelectorAll(focusableElements);
lastFocusableElement = focusableContent[focusableContent.length - 1]; // get last element to be focused inside modal
if (off) {
modal.removeEventListener("keydown", focusHandler);
} else {
modal.addEventListener("keydown", focusHandler);
firstFocusableElement.focus();
}
};
const inOutSine = (n) => (1 - Math.cos(Math.PI * n)) / 2;
const paddingX = el => parseInt(getComputedStyle(el).paddingInlineStart) * 2;
const paddingY = el => parseInt(getComputedStyle(el).paddingBlockStart) * 2;
const getControl = (carousel, control) => {
let detached_control = document.querySelector(`${control}[data-for="${carousel.id}"]`);
if (detached_control) {
return detached_control;
}
for (let el of carousel.children) {
if (el.matches(control)) {
return el;
}
if (!el.matches(".n-carousel__content") && el.querySelector(control)) {
return el.querySelector(control);
}
}
};
const closestCarousel = el => {
var related_by_id = el.closest('[class*="n-carousel"]').dataset.for;
if (!!related_by_id) {
return document.getElementById(related_by_id).querySelector(".n-carousel__content");
} else {
return el.closest(".n-carousel").querySelector(".n-carousel__content");
}
};
const scrollAnimate = (el, distanceX, distanceY, new_height, old_height = false) => new Promise((resolve, reject) => {
// Thanks https://stackoverflow.com/posts/46604409/revisions
let wrapper = el.closest(".n-carousel");
if (!!wrapper.nextSlideInstant || !wrapper.dataset.ready || window.matchMedia("(prefers-reduced-motion: reduce)").matches || wrapper.matches(".n-carousel--instant")) {
scrollTo(el, getScroll(el).x + distanceX, getScroll(el).y + distanceY);
el.style.height = `${new_height}px`;
delete wrapper.nextSlideInstant;
updateCarousel(el);
resolve(el);
return;
}
observersOff(el);
let scroll_changing = true;
if (distanceX === 0 && distanceY === 0) {
scroll_changing = false;
}
if (!!new_height) {
el.style.height = `${old_height}px`;
if (isVertical(el) && isAutoHeight(el)) {
el.style.setProperty('--subpixel-compensation', 0);
}
} else {
if (!isVertical(el)) {
el.style.height = "";
}
}
var startx = getScroll(el).x;
var starty = getScroll(el).y;
var starth = parseInt(el.style.height);
var distanceH = new_height - starth;
var duration = parseFloat(el.parentNode.dataset.duration) * 1000 || default_duration;
var start = null;
let startAnim = (timeStamp) => {
start = timeStamp;
draw(timeStamp);
};
let draw = (now) => {
if (now - start >= duration) { // sliding ends
window.requestAnimationFrame(() => {
scrollTo(el, startx + distanceX, starty + distanceY);
if (new_height) {
el.style.height = `${new_height}px`;
}
updateCarousel(el);
});
resolve(el);
return;
}
var p = (now - start) / duration;
var val = inOutSine(p);
var x = startx + distanceX * val;
var y = starty + distanceY * val;
if (scroll_changing) {
scrollTo(el, x, y);
}
if (new_height) {
window.requestAnimationFrame(() => {
el.style.height = `${starth + distanceH * val}px`;
}); // Timeout because Safari can't do scroll and height at once
}
requestAnimationFrame(draw);
};
requestAnimationFrame(startAnim);
});
const updateCarousel = (el, forced = false) => { // Forced means never skip unnecessary update
// Called on init and scroll end
// console.log(el, el.matches(':fullscreen'));
if (el.togglingFullScreen) {
// console.log('updateCarousel: toggling Full Screen')
return;
}
observersOff(el);
let saved_x = el.dataset.x; // On displaced slides and no change
let saved_y = el.dataset.y;
el.dataset.x = Math.abs(Math.round(scrollStartX(el) / ceilingWidth(el.firstElementChild)));
el.dataset.y = Math.abs(Math.round(el.scrollTop / ceilingHeight(el.firstElementChild)));
// When inline
if (el.dataset.x === "NaN") {
el.dataset.x = 0;
}
if (el.dataset.y === "NaN") {
el.dataset.y = 0;
}
let active_index = getIndex(el);
if (active_index >= el.children.length) {
active_index = el.children.length - 1;
}
// console.log('update at', active_index, el.dataset.x, el.dataset.y);
let old_active_slide = el.querySelector(":scope > [aria-current]");
let wrapper = el.parentElement;
if (!isAutoHeight(wrapper)) {
// Dynamic change from auto height to normal
el.style.height = "";
}
let active_slide = el.children[active_index];
if (old_active_slide && !forced) {
if (active_slide === old_active_slide) {
// Scroll snapping back to the same slide. Nothing to do here.
el.dataset.x = saved_x;
el.dataset.y = saved_y;
observersOn(el);
return;
}
old_active_slide.removeAttribute('aria-current');
old_active_slide.style.height = "";
if (!isVertical(el)) {
el.style.height = "";
}
}
// active_slide.ariaCurrent = true; // Unsupported by FF
active_slide.setAttribute('aria-current', true);
var active_index_real = el.dataset.x = el.dataset.y = getIndexReal(el);
// Endless carousel
const restoreDisplacedSlides = el => {
el.querySelectorAll(":scope > [data-first]").forEach(el2 => {
el.append(el.firstElementChild);
delete el2.dataset.first;
active_index--;
});
el.querySelectorAll(":scope > [data-last]").forEach(el2 => {
el.prepend(el.lastElementChild);
delete el2.dataset.last;
active_index++;
});
};
wrapper.dataset.sliding = true;
if (isEndless(el) && !forced) {
if (active_index === 0) {
if (!active_slide.dataset.first) {
// Move the last one to the front as [data-first]
if (el.lastElementChild.dataset.last) {
delete el.lastElementChild.dataset.last;
active_index_real = 1;
} else {
el.lastElementChild.dataset.first = true;
}
el.prepend(el.lastElementChild);
active_index = 1;
} else {
// Landed on fake first slide. Move it to the back, remove its [data-first] and move the first one to the back as [data-last]
delete el.firstElementChild.dataset.first;
el.append(el.firstElementChild);
el.firstElementChild.dataset.last = true;
el.append(el.firstElementChild);
active_index_real = el.children.length - 1;
active_index = el.children.length - 2;
}
} else {
if (active_index === el.children.length - 1) {
if (!active_slide.dataset.last) {
// Move the first one to the back as [data-last]
if (el.firstElementChild.dataset.first) {
delete el.firstElementChild.dataset.first;
active_index_real = el.children.length - 2;
} else {
el.firstElementChild.dataset.last = true;
}
el.append(el.firstElementChild);
active_index = el.children.length - 2;
} else {
// Landed on fake last slide. Move it to the front, remove its [data-last] and move the last one to the front as [data-first]
delete el.lastElementChild.dataset.last;
el.prepend(el.lastElementChild);
el.lastElementChild.dataset.first = true;
el.prepend(el.lastElementChild);
active_index_real = 0;
active_index = 1;
}
} else {
// Middle slide
restoreDisplacedSlides(el);
active_index_real = Math.max(0, [...el.children].indexOf(el.querySelector(":scope > [aria-current]"))); // Fixes position when sliding to/from first slide; max because of FF returning -1
}
}
const updateScroll = () => {
el.dataset.x = el.dataset.y = active_index_real;
let scroll_x = ceilingWidth(el.firstElementChild) * active_index;
let scroll_y = ceilingHeight(el.firstElementChild) * active_index;
// console.log('updateCarousel() scrolling at', scroll_x);
el.scroll_x = scroll_x;
el.scroll_y = scroll_y;
scrollTo(el, scroll_x, scroll_y); // First element size, because when Peeking, it differs from carousel size
delete el.scroll_x;
delete el.scroll_y;
};
if (isVertical(el) && isAutoHeight(el)) {
window.requestAnimationFrame(() => { // Causes blinking, but needed for vertical auto height endless
updateScroll();
});
} else {
updateScroll();
}
} else { // Check and restore dynamically disabled endless option
restoreDisplacedSlides(el);
active_index_real = Math.max(0, [...el.children].indexOf(el.querySelector(":scope > [aria-current]"))); // Fixes position when sliding to/from first slide; max because of FF returning -1
}
active_slide.style.height = "";
wrapper.style.setProperty("--height", `${isAutoHeight(el) ? nextSlideHeight(active_slide) : active_slide.scrollHeight}px`);
window.requestAnimationFrame(() => {
if (!el.parentNode.dataset.ready && isAutoHeight(el) && isVertical(el)) {
el.style.height = `${parseFloat(getComputedStyle(el).height) - paddingY(el)}px`;
}
});
// Sliding to a slide with a hash? Update the URI
if (getComputedStyle(el).visibility !== 'hidden') {
let previously_active = document.activeElement;
let hash = active_slide.id;
if (!!el.parentNode.dataset.ready && !!hash && !el.parentNode.closest('.n-carousel__content')) { // Hash works only with top-level carousel
location.hash = `#${hash}`;
}
if (!!el.parentNode.dataset.ready && !hash && !el.parentNode.closest('.n-carousel__content') && window.nCarouselNav) { // Hash works only with top-level carousel
location.hash = '';
}
previously_active.focus();
}
// Fix buttons
let index = getControl(el.closest(".n-carousel"), ".n-carousel__index");
if (!!index) {
index.querySelector("[aria-current]")?.removeAttribute('aria-current');
// index.children[active_index_real].ariaCurrent = true; // Unsupported by FF
indexControls(index)[active_index_real].setAttribute('aria-current', true);
}
// Disable focus on children of non-active slides
// Active slides of nested carousels should also have disabled focus
[...el.children].forEach(el => { // Native "inert" attribute to replace the below "focusDisabled" loops from June 2022.
el.inert = (el === active_slide) ? false : true;
if (isSafari && el.querySelector('.n-carousel:-webkit-full-screen')) {
// Safari full screen bug: parent scroll resets to 0, first slide becomes active and the full screen child lightbox is inside an inert parent
let current = el.parentNode.querySelector(':scope > [aria-current="true"]');
current.inert = true;
current.removeAttribute('aria-current');
el.inert = false;
el.setAttribute('aria-current', true);
}
});
// Obsoleted by inert – start
// [...el.children].forEach((slide) => {
// if (slide !== active_slide) {
// slide.setAttribute('aria-hidden', true);
// slide.querySelectorAll(focusableElements).forEach((el2) => {
// if (el2.closest(".n-carousel__content > :not([aria-current])")) {
// if (el2.getAttribute("tabindex") && !el2.dataset.focusDisabled) {
// el2.dataset.oldTabIndex = el2.tabIndex;
// }
// el2.dataset.focusDisabled = true;
// el2.tabIndex = -1;
// }
// });
// }
// });
// active_slide.removeAttribute('aria-hidden');
// active_slide.querySelectorAll("[data-focus-disabled]").forEach((el2) => {
// if (!el2.closest(".n-carousel__content > :not([aria-current])")) {
// el2.removeAttribute("tabindex");
// delete el2.dataset.focusDisabled;
// if (!!el2.dataset.oldTabIndex) {
// el2.tabIndex = el2.dataset.oldTabIndex;
// delete el2.dataset.oldTabIndex;
// }
// }
// });
// Obsoleted by inert – end
if (/--vertical.*--auto-height/.test(wrapper.classList)) { // Undo jump to wrong slide when sliding to the last one
el.scrollTop = el.offsetHeight * active_index_real;
}
window.requestAnimationFrame(() => {
observersOn(el);
});
};
const slide = (el, offsetX = 0, offsetY = 0, index) => {
clearTimeout(el.nCarouselTimeout);
if (!el.parentNode.dataset.sliding) {
el.parentNode.dataset.sliding = true;
let old_height = el.children[getIndexReal(el)].offsetHeight;
let new_height = old_height;
if (isAutoHeight(el)) {
let old_scroll_left = scrollStartX(el);
let old_scroll_top = el.scrollTop;
let slide = el.children[index];
if (isVertical(el)) {
slide.style.height = 'auto';
let computed_max_height = getComputedStyle(el).maxHeight;
let max_height = computed_max_height.match(/px/) ? Math.ceil(parseFloat(computed_max_height)) : 99999;
// new_height = Math.min(slide.scrollHeight, max_height);
new_height = Math.min(Math.ceil(parseFloat(getComputedStyle(slide).height)), max_height);
// new_height = slide.scrollHeight;
slide.style.height = '';
} else {
new_height = nextSlideHeight(slide);
let old_height = getIndexReal(el) === index ? new_height : nextSlideHeight(el.children[getIndexReal(el)]);
el.parentNode.style.setProperty("--height", `${old_height}px`);
}
scrollTo(el, old_scroll_left + paddingX(el) / 2, old_scroll_top); // iPad bug
scrollTo(el, old_scroll_left, old_scroll_top);
}
if (isVertical(el)) {
if ((isModal(el) || isFullScreen()) && isAutoHeight(el)) {
old_height = new_height = el.offsetHeight;
}
offsetY = offsetY - index * old_height + index * new_height;
}
// console.log(index, offsetX, offsetY);
window.requestAnimationFrame(() => {
if (!el.parentNode.dataset.duration && !isAutoHeight(el)) { // Unspecified duration, no height change – using native smooth scroll
delete el.parentNode.dataset.sliding;
el.dataset.next = index;
el.scrollTo({
top: el.scrollTop + offsetY,
left: el.scrollLeft + offsetX,
behavior: window.matchMedia('(prefers-reduced-motion: reduce)').matches ? "auto" : "smooth"
});
} else {
scrollAnimate(el, offsetX, offsetY, new_height === old_height ? false : new_height, old_height); // Vertical version will need ceiling value
}
});
}
};
const slideNext = el => {
let index = getIndexReal(el);
slideTo(el, index >= el.children.length - 1 ? 0 : index + 1);
};
const slidePrevious = el => {
let index = getIndexReal(el);
slideTo(el, index === 0 ? el.children.length - 1 : index - 1);
};
const slideTo = (el, index) => {
if (isVertical(el)) {
slide(el, 0, ceilingHeight(el.children[index]) * index - el.scrollTop, index);
} else {
let width = Math.ceil(parseFloat(getComputedStyle(el.children[index]).width));
let new_offset = isRTL(el) ? Math.abs(scrollStartX(el)) - width * index : width * index - scrollStartX(el);
slide(el, new_offset, 0, index);
}
};
const carouselKeys = e => {
// console.log('keydown', e);
// return;
let keys = ["ArrowLeft", "ArrowRight", "ArrowUp", "ArrowDown", "PageUp", "PageDown", "Home", "End"];
let el = e.target.closest('.n-carousel').querySelector(':scope > .n-carousel__content');
// if (e.key === "Tab") {
// let carousel = el.closest(".n-carousel__content");
// carousel.tabbing = true;
// }
if (
// el.matches(".n-carousel__content") &&
keys.includes(e.key)) {
// Capture relevant keys
// e.preventDefault();
switch (e.key) {
case "ArrowLeft": {
isRTL(el) ? slideNext(el) : slidePrevious(el);
break;
}
case "ArrowRight": {
isRTL(el) ? slidePrevious(el) : slideNext(el);
break;
}
case "ArrowUp":
case "PageUp": {
slidePrevious(el);
break;
}
case "ArrowDown":
case "PageDown": {
slideNext(el);
break;
}
case "Home": {
slideTo(el, 0);
break;
}
case "End": {
slideTo(el, el.children.length - 1);
break;
}
}
}
};
const slidePreviousEvent = e => slidePrevious(closestCarousel(e.target.closest('[class*="n-carousel"]')));
const slideNextEvent = e => slideNext(closestCarousel(e.target.closest('[class*="n-carousel"]')));
const slideIndexEvent = e => {
let el = e.target.closest("a, button");
if (el && !(el.href && (e.ctrlKey || e.metaKey))) {
const wrapper = document.querySelector(`.n-carousel#${el.parentNode.dataset.for}`) || el.closest(".n-carousel");
const carousel = wrapper.querySelector(":scope > .n-carousel__content");
let new_index = [...indexControls(el.parentNode)].indexOf(el);
if (isEndless(carousel)) {
var old_index = getIndex(carousel);
if (old_index === 0) {
if (new_index === carousel.children.length - 1) {
new_index = 0;
} else {
new_index++;
}
}
if (old_index === carousel.children.length - 1) {
if (new_index === 0) {
new_index = carousel.children.length - 1;
} else {
new_index--;
}
}
}
if (wrapper.classList.contains("n-carousel--inline") && !isModal(carousel)) { // Opening an inline carousel
wrapper.nextSlideInstant = true;
// wrapper.classList.add("n-carousel--overlay"); // Should trigger mutation and auto update?
openModal(carousel);
// Set new x, y
window.requestAnimationFrame(() => {
carousel.dataset.x = carousel.dataset.y = new_index;
scrollTo(carousel, carousel.offsetWidth * carousel.dataset.x, carousel.offsetHeight * carousel.dataset.y);
document.body.dataset.frozen = document.body.scrollTop;
updateCarousel(carousel);
});
} else {
window.requestAnimationFrame(() => {
slideTo(carousel, new_index);
});
}
return false;
}
};
const closeModalOnBodyClick = e => {
let overlay = document.querySelector('.n-carousel--overlay');
if (overlay && e.key === 'Escape') {
closeModal(overlay);
}
};
const closeModal = el => {
if (isFullScreen()) {
!!document.exitFullscreen ? document.exitFullscreen() : document.webkitExitFullscreen();
}
let carousel = closestCarousel(el);
if (carousel) {
carousel.parentNode.toggleModal = true; // skip mutation observer
carousel.closest(".n-carousel").classList.remove("n-carousel--overlay");
trapFocus(carousel.closest(".n-carousel"), true); // Disable focus trap
delete document.body.dataset.frozen;
}
document.body.removeEventListener('keyup', closeModalOnBodyClick);
};
const openModal = el => {
let carousel = closestCarousel(el);
if (carousel) {
carousel.parentNode.toggleModal = true; // skip mutation observer
carousel.closest(".n-carousel").classList.add("n-carousel--overlay");
trapFocus(carousel.closest(".n-carousel"));
setTimeout(() => { document.body.addEventListener('keyup', closeModalOnBodyClick); }, 100);
}
};
const autoHeightObserver = new ResizeObserver((entries) => {
window.requestAnimationFrame(() => {
entries.forEach(e => {
let slide = e.target.querySelector(":scope > [aria-current]");
let el = slide.closest(".n-carousel__content");
if (!el.parentElement.dataset.sliding) {
// console.log(e.target);
el.parentNode.style.removeProperty('--height');
if (isVertical(el)) {
slide.style.height = 'auto';
el.style.height = `${slide.scrollHeight}px`;
slide.style.height = '';
updateCarousel(el);
} else {
el.style.height = '';
el.style.height = `${slide.scrollHeight}px`;
updateCarousel(el, true);
}
}
});
});
});
const updateSubpixels = el => {
if (!el.parentNode.dataset.sliding) {
// Round down the padding, because sub pixel padding + scrolling is a problem
let carousel = el;
carousel.style.padding = ''; // Subpixel peeking fix
carousel.style.removeProperty("--peek-int");
carousel.style.padding = isVertical(carousel) ? `${parseInt(getComputedStyle(carousel).paddingBlockStart)}px 0` : `0 ${parseInt(getComputedStyle(carousel).paddingInlineStart)}px`;
if (carousel.style.padding === '0px') {
carousel.style.padding = '';
} else {
// For Safari, which doesn't support inline end padding in a scrollable container
carousel.style.setProperty("--peek-int", isVertical(carousel) ? `${parseInt(getComputedStyle(carousel).paddingBlockStart)}px 0 0 0` : `0 ${parseInt(getComputedStyle(carousel).paddingInlineStart)}px 0 0`);
}
window.requestAnimationFrame(() => {
if (isVertical(el)) {
carousel.style.setProperty("--subpixel-compensation", Math.ceil(carousel.getBoundingClientRect().height) - carousel.getBoundingClientRect().height);
} else {
carousel.style.setProperty("--subpixel-compensation", Math.ceil(carousel.getBoundingClientRect().width) - carousel.getBoundingClientRect().width);
}
let offset = getIndexReal(carousel); // Real offset including displaced first/last slides
scrollTo(carousel, offset * ceilingWidth(carousel.firstElementChild), offset * ceilingHeight(carousel.firstElementChild));
});
}
};
const observersOn = el => {
window.requestAnimationFrame(() => {
if (el.scroll_x && el.scroll_y) {
scrollTo(el, el.scroll_x, el.scroll_y);
}
if (el.parentNode.matches(".n-carousel--vertical.n-carousel--controls-outside.n-carousel--auto-height")) {
height_minus_index.observe(el.parentNode);
} else {
height_minus_index.unobserve(el.parentNode);
}
subpixel_observer.observe(el);
mutation_observer.observe(el.parentNode, {
attributes: true,
attributeFilter: ["class"],
});
el.addEventListener('scrollend', scrollEndAction);
// setTimeout(() => {
delete el.parentNode.dataset.sliding;
// }, 50); // Because intersection observer fires again
if (!("onscrollend" in window) && isEndless(el)) { // Fix for browsers without scrollend event (Safari) losing parts of the edge slide
scrollTo(el, el.offsetWidth * getIndexReal(el), el.offsetHeight * getIndexReal(el));
}
});
};
const observersOff = el => {
height_minus_index.unobserve(el.parentNode);
subpixel_observer.unobserve(el);
el.observerStarted = true;
el.removeEventListener('scrollend', scrollEndAction);
};
const updateObserver = el => {
observersOff(el);
const doUpdate = el => {
updateSubpixels(el);
window.requestAnimationFrame(() => {
let current_height = el.querySelector(":scope > [aria-current]").scrollHeight + "px";
let previous_height = getComputedStyle(el).getPropertyValue("--height");
if (current_height !== previous_height) {
el.parentNode.style.setProperty("--height", current_height);
}
observersOn(el);
});
};
doUpdate(el);
el.querySelectorAll('.n-carousel__content').forEach(el => doUpdate(el));
};
const subpixel_observer = new ResizeObserver((entries) => {
window.requestAnimationFrame(() => {
entries.forEach(e => {
let el = e.target;
if (!!el.observerStarted) {
el.observerStarted = false;
return;
}
updateObserver(el);
});
});
});
const mutation_observer = new MutationObserver((mutations) => {
for (let mutation of mutations) {
if (mutation.target && !mutation.target.nextSlideInstant && !mutation.target.toggleModal) {
let carousel = mutation.target.querySelector(":scope > .n-carousel__content");
updateObserver(carousel);
updateCarousel(carousel, true);
delete mutation.target.toggleModal;
}
}
});
const setIndexWidth = el => {
let index = el.querySelector(":scope > .n-carousel__index");
if (index && !el.dataset.sliding) {
el.style.removeProperty("--height-minus-index");
index.style.position = "absolute";
el.style.setProperty("--height-minus-index", `${el.offsetHeight}px`);
el.style.setProperty("--index-width", getComputedStyle(el.querySelector(":scope > .n-carousel__index")).width);
index.style.position = "";
}
};
const height_minus_index = new ResizeObserver((entries) => {
// Limit outside index height to carousel height
window.requestAnimationFrame(() => {
// Observing the carousel wrapper
entries.forEach(e => {
let el = e.target;
setIndexWidth(el);
});
});
});
const init = (host = document) => {
host.querySelectorAll(".n-carousel:not([data-ready])").forEach(el => {
const previous = getControl(el, ".n-carousel__previous");
const next = getControl(el, ".n-carousel__next");
const index = getControl(el, ".n-carousel__index");
const close_modal = getControl(el, ".n-carousel__close");
const full_screen = getControl(el, ".n-carousel__full-screen");
const content = el.querySelector(":scope > .n-carousel__content");
if (!content) {
return;
}
if (!!previous) {
previous.onclick = slidePreviousEvent;
}
if (!!next) {
next.onclick = slideNextEvent;
}
if (!!index) {
index.onclick = slideIndexEvent;
}
if (!!close_modal) {
close_modal.onclick = e => {
if (e.target.closest('.n-carousel').classList.contains('n-carousel--overlay')) {
closeModal(e.target);
} else {
openModal(e.target);
}
};
}
if (!!full_screen) {
full_screen.onclick = e => {
let carousel = e.target.closest(".n-carousel").querySelector(":scope > .n-carousel__content");
carousel.dataset.xx = carousel.dataset.x;
carousel.dataset.yy = carousel.dataset.y;
toggleFullScreen(e.target);
};
const fullScreenEvent = e => {
// console.log(e, 'full screen');
let carousel = e.target.querySelector(":scope > .n-carousel__content");
window.requestAnimationFrame(() => {
carousel.dataset.x = carousel.dataset.xx;
carousel.dataset.y = carousel.dataset.yy;
delete carousel.dataset.xx;
delete carousel.dataset.yy;
if (carousel.dataset.x !== "undefined" && carousel.dataset.y !== "undefined") {
scrollTo(carousel, getIndexReal(carousel) * ceilingWidth(carousel.children[getIndexReal(carousel)]), getIndexReal(carousel) * ceilingHeight(carousel.children[getIndexReal(carousel)]));
}
// setTimeout(() => {
delete carousel.togglingFullScreen;
updateCarousel(carousel);
// }, 100);
});
};
if (isSafari) {
el.onwebkitfullscreenchange = fullScreenEvent;
} else {
el.onfullscreenchange = fullScreenEvent;
}
}
el.addEventListener("keydown", carouselKeys);
el.addEventListener("keyup", e => {
if (e.key === "Escape") {
let el = e.target;
if (!el.closest('.n-carousel--overlay')) {
el = document.querySelector('.n-carousel--overlay');
}
if (el) {
closeModal(el);
}
}
});
updateSubpixels(content);
content.observerStarted = true;
let hashed_slide = !!location.hash ? content.querySelector(":scope > " + location.hash) : false;
if (hashed_slide) {
if (el.classList.contains('n-carousel--inline')) {
openModal(content);
// el.classList.add('n-carousel--overlay');
}
let index = [...hashed_slide.parentNode.children].indexOf(hashed_slide);
if (isVertical(content)) {
content.dataset.y = index;
} else {
content.dataset.x = index;
}
// slideTo(content, index); // This slides to the wrong slide
window.nCarouselNav = [content, location.hash];
}
if (el.matches(".n-carousel--vertical.n-carousel--auto-height")) {
content.style.height = '';
content.style.height = getComputedStyle(content).height;
el.dataset.ready = true;
content.scrollTop = 0; // Should be a different value if the initial active slide is other than the first one (unless updateCarousel() takes care of it)
}
if (isAutoHeight(el)) {
// Auto has a specified height which needs update on resize
autoHeightObserver.observe(content);
}
window.requestAnimationFrame(() => {
observersOn(content);
if (el.parentNode.matches(".n-carousel--vertical.n-carousel--controls-outside.n-carousel--auto-height")) {
setIndexWidth(el);
}
updateCarousel(content);
el.dataset.ready = true;
if (el.matches(".n-carousel--auto-slide")) {
let auto_delay = (parseFloat(el.dataset.interval) * 1000 || default_interval) + (parseFloat(el.dataset.duration) * 1000 || default_duration);
let carouselTimeout = () => {
if (isElementInViewport(content)) {
slideNext(content);
}
content.nCarouselTimeout = setTimeout(carouselTimeout, auto_delay);