57 lines
1.6 KiB
JavaScript
57 lines
1.6 KiB
JavaScript
(() => {
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const reduceMotion = window.matchMedia("(prefers-reduced-motion: reduce)").matches;
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const selectors = [
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".section__head",
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".info-card",
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".feature-card",
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".object-card",
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".service-card",
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".gallery__item",
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".review-card",
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".stats article",
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".booking__form",
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".contacts-card",
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".hours-card",
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];
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const elements = Array.from(document.querySelectorAll(selectors.join(",")));
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if (!elements.length) return;
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const siblingCounters = new WeakMap();
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elements.forEach((element) => {
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element.classList.add("scroll-reveal");
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const parent = element.parentElement;
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let offsetIndex = 0;
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if (parent) {
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offsetIndex = siblingCounters.get(parent) ?? 0;
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siblingCounters.set(parent, offsetIndex + 1);
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}
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element.style.setProperty("--reveal-delay", `${(offsetIndex % 4) * 80}ms`);
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});
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if (reduceMotion || !("IntersectionObserver" in window)) {
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elements.forEach((element) => element.classList.add("is-visible"));
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return;
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}
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const observer = new IntersectionObserver(
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(entries, currentObserver) => {
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entries.forEach((entry) => {
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if (!entry.isIntersecting) return;
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entry.target.classList.add("is-visible");
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currentObserver.unobserve(entry.target);
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});
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},
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{
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threshold: 0.18,
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rootMargin: "0px 0px -12% 0px"
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}
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);
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elements.forEach((element) => observer.observe(element));
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})();
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