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(function () { |
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'use strict'; |
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|
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document.querySelectorAll('.bkbg-ps-wrapper').forEach(function (wrapper) { |
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/* ── Gallery thumbnails → main image swap ─────────────────── */ |
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var mainImg = wrapper.querySelector('.bkbg-ps-main-img'); |
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var thumbBtns = wrapper.querySelectorAll('.bkbg-ps-thumb-btn'); |
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|
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thumbBtns.forEach(function (btn, idx) { |
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btn.addEventListener('click', function () { |
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var src = btn.getAttribute('data-src'); |
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if (mainImg && src) { |
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mainImg.src = src; |
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mainImg.alt = btn.getAttribute('data-alt') || ''; |
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} |
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thumbBtns.forEach(function (b, i) { |
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b.classList.toggle('is-active', i === idx); |
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}); |
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}); |
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}); |
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|
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/* ── Variant pills ────────────────────────────────────────── */ |
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var variantPills = wrapper.querySelectorAll('.bkbg-ps-variant-pill'); |
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variantPills.forEach(function (pill) { |
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pill.addEventListener('click', function () { |
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variantPills.forEach(function (p) { p.classList.remove('is-active'); }); |
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pill.classList.add('is-active'); |
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}); |
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}); |
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|
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/* ── Size pills ───────────────────────────────────────────── */ |
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var sizePills = wrapper.querySelectorAll('.bkbg-ps-size-pill'); |
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sizePills.forEach(function (pill) { |
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pill.addEventListener('click', function () { |
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sizePills.forEach(function (p) { p.classList.remove('is-active'); }); |
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pill.classList.add('is-active'); |
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}); |
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}); |
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|
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/* ── Description / Specs / Reviews tabs ──────────────────── */ |
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var tabNav = wrapper.querySelector('.bkbg-ps-tab-nav'); |
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var tabBtns = wrapper.querySelectorAll('.bkbg-ps-tab-btn'); |
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var tabPanels = wrapper.querySelectorAll('.bkbg-ps-tab-panel'); |
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|
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function showTab(idx) { |
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tabBtns.forEach(function (b, i) { |
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b.classList.toggle('is-active', i === idx); |
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b.setAttribute('aria-selected', i === idx ? 'true' : 'false'); |
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}); |
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tabPanels.forEach(function (p, i) { |
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p.classList.toggle('is-active', i === idx); |
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p.setAttribute('aria-hidden', i === idx ? 'false' : 'true'); |
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}); |
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} |
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|
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tabBtns.forEach(function (btn, idx) { |
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btn.addEventListener('click', function () { showTab(idx); }); |
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}); |
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|
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if (tabNav) { |
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tabNav.addEventListener('keydown', function (e) { |
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var active = tabNav.querySelector('[aria-selected="true"]'); |
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var idx = Array.prototype.indexOf.call(tabBtns, active); |
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if (e.key === 'ArrowRight') { |
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showTab((idx + 1) % tabBtns.length); |
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tabBtns[(idx + 1) % tabBtns.length].focus(); |
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e.preventDefault(); |
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} else if (e.key === 'ArrowLeft') { |
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showTab((idx - 1 + tabBtns.length) % tabBtns.length); |
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tabBtns[(idx - 1 + tabBtns.length) % tabBtns.length].focus(); |
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e.preventDefault(); |
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} |
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}); |
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} |
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|
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/* ── Entrance animation ───────────────────────────────────── */ |
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if ('IntersectionObserver' in window) { |
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var galleryCol = wrapper.querySelector('.bkbg-ps-gallery-col'); |
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var infoCol = wrapper.querySelector('.bkbg-ps-info-col'); |
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[galleryCol, infoCol].forEach(function (el, i) { |
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if (!el) return; |
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el.style.opacity = '0'; |
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el.style.transform = 'translateY(20px)'; |
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el.style.transition = 'opacity 0.5s ease ' + (i * 0.12) + 's, transform 0.5s ease ' + (i * 0.12) + 's'; |
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}); |
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var io = new IntersectionObserver(function (entries) { |
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entries.forEach(function (entry) { |
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if (!entry.isIntersecting) return; |
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entry.target.style.opacity = '1'; |
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entry.target.style.transform = 'translateY(0)'; |
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io.unobserve(entry.target); |
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}); |
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}, { threshold: 0.08 }); |
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[galleryCol, infoCol].forEach(function (el) { if (el) io.observe(el); }); |
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} |
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}); |
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})(); |
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