糖心传媒

Annual Anniversary Sale: 40% Off Diamonds!SHOP NOW

— those keep /

糖心传媒

pinned at // `overflow:hidden`, so window.scrollY never changes and the icon would be // stuck at its default color forever. `scrollEl` tracks whichever element // actually receives scroll events; falls back to window when nothing else does. var scrollEl = null; function currentScrollTop() { // Never trust scrollEl exclusively — if it was ever mis-detected (a // transient element present only at page-load) its scrollTop stays stuck // at 0 forever and would otherwise permanently override a perfectly good // window.scrollY reading on themes where the window itself scrolls // normally. Taking whichever is larger means a wrong guess can never // suppress the real value, on any theme. var winTop = window.scrollY || document.documentElement.scrollTop || document.body.scrollTop || 0; var elTop = scrollEl ? scrollEl.scrollTop : 0; return Math.max(winTop, elTop); } // Best-effort seed in case the page loads already scrolled inside a // non-window container — the capture-phase listener below self-corrects // for everything after the first real scroll, this just avoids a flash // of the wrong color before that happens. function detectScrollContainer() { var all = document.body.querySelectorAll('*'); for (var i = 0; i < all.length; i++) { var el = all[i]; var cs = getComputedStyle(el); if (cs.overflowY !== 'auto' && cs.overflowY !== 'scroll') continue; if (el.scrollHeight <= el.clientHeight + 50) continue; if (el.clientHeight <= window.innerHeight * 0.5) continue; // Reject hidden/off-canvas elements (e.g. a closed mobile nav submenu) — // they can satisfy the size checks above while never actually being the // thing the shopper scrolls, and unlike a mis-detected *visible* element // they never self-correct via a real scroll event either. if (cs.visibility === 'hidden' || cs.display === 'none') continue; var r = el.getBoundingClientRect(); if (r.right <= 0 || r.left >= window.innerWidth || r.bottom <= 0 || r.top >= window.innerHeight) continue; return el; } return null; } function isHomePage() { // Set server-side from Liquid's request.page_type — reliable regardless of // locale-prefixed URLs (e.g. /en, /fr) where pathname/body-class checks fail. if (root.dataset.isHomePage) return root.dataset.isHomePage === 'true'; if (window.Shopify && window.Shopify.template) return window.Shopify.template === 'index'; if (document.body.classList.contains('template-index')) return true; var p = window.location.pathname; return p === '/' || p === ''; } function isMenuOpen() { // Many themes force the header to a solid background while a nav // dropdown/mega-menu is open (via CSS reacting to aria-expanded), // independent of actual scroll position — without this check the icon // is left in its transparent-header color, invisible against the // now-solid backdrop. return !!document.querySelector('header [aria-expanded="true"], nav [aria-expanded="true"], [role="navigation"] [aria-expanded="true"]'); } // Composited bg behind el. null = no signal -> scrollY fallback. 'fading' // = early fade (<50% opaque) before an out-of-flow ancestor/hop limit -> // can't see the real backdrop, hold not-scrolled rather than guess. // Confirmed live: treating ANY partial opacity as "no signal" let scrollY // flip early over a still-visible photo (icon went grey right after // scrolling). >=50% trusts the accumulated color already rather than // waiting for exactly 100%, which held white through the fade's near- // solid tail too -- a shorter version of the same "invisible" complaint. function wlBgDone(a,r,g,b) { return a>=0.5 ? {r:r/a,g:g/a,b:b/a} : (a>0.02 ? 'fading' : null); } function wlBg(el) { try { var r=0,g=0,b=0,a=0,node=el,hops=0; while (node && node.nodeType===1 && hops<12) { var cs=getComputedStyle(node); if (cs.backgroundImage!=='none') return wlBgDone(a,r,g,b); var m=/rgba?\(([^)]+)\)/.exec(cs.backgroundColor||''); if (m) { var p=m[1].split(',').map(parseFloat), ca=p.length>3?p[3]:1; if (ca>0) { r+=(1-a)*ca*p[0]; g+=(1-a)*ca*p[1]; b+=(1-a)*ca*p[2]; a+=(1-a)*ca; if (a>0.999) return {r:r/a,g:g/a,b:b/a}; } } if (cs.position==='fixed' || cs.position==='sticky' || cs.position==='absolute') return wlBgDone(a,r,g,b); node=node.parentElement; hops++; } return wlBgDone(a,r,g,b); // walk exhausted without reaching full opacity } catch (e) { return null; } } function wlHex(v) { v=(v||'').trim().replace('#',''); if (v.length===3) v=v.replace(/(.)/g,'$1$1'); return /^[0-9a-f]{6}$/i.test(v) ? {r:parseInt(v.slice(0,2),16),g:parseInt(v.slice(2,4),16),b:parseInt(v.slice(4,6),16)} : null; } function wlLum(c) { return 0.2126*c.r+0.7152*c.g+0.0722*c.b; } // Throttled ~12/s (plenty for a 0.2s transition); true/false = better-contrast // candidate, null = bg unreliable -> caller falls back to scrollY threshold. var cdT=0, cdV=null; function contrastScrolled() { var t=Date.now(); if (t-cdT<80) return cdV; cdT=t; var bg=wlBg(root); // A fade in progress is positive evidence the header hasn't reached its // final solid state yet — hold the not-scrolled color rather than let // the scrollY threshold guess early. Once the fade completes, wlBg() // resolves normally and this re-evaluates against the real result. if (bg==='fading') return cdV=false; if (!bg) return cdV=null; var rcs=getComputedStyle(document.documentElement); var c1=wlHex(rcs.getPropertyValue('--wh-icon-color')); var c2=wlHex(rcs.getPropertyValue('--wh-scrolled-icon-color')); // Same icon color both states (merchant only customized scrolled text/badge, // not the icon) -> no real signal either way; false here would permanently // block .wh-scrolled via scroll, silently breaking those other colors too. if (!c1 || !c2 || (c1.r===c2.r && c1.g===c2.g && c1.b===c2.b)) return cdV=null; var lb=wlLum(bg); return cdV = Math.abs(wlLum(c2)-lb) > Math.abs(wlLum(c1)-lb); } function updateScrollState() { // Non-home pages: only pin to the static otherPagesColor choice when the // merchant restricted scroll-based switching to the home page. if (scrollHomePageOnly && !isHomePage()) { root.classList.toggle('wh-scrolled', otherPagesColor === 'scrolled'); return; } // Otherwise (home page, or homePageOnly is off): switch based on real scroll position. var cd = contrastScrolled(); var scrolled = (cd !== null ? cd : currentScrollTop() > scrollThreshold) || isMenuOpen(); root.classList.toggle('wh-scrolled', scrolled); } // Confirmed live: last scroll event may not land at rest position, and // the 80ms throttle can serve a stale cd -> icon stuck grey after // scrolling back to transparent. Force one fresh check once settled. var scrollSettleTimer; function handleScroll(e) { // Capturing on document catches descendant scroll containers too. Must // require genuine vertical overflow, not just a scroll event — a // horizontal-only carousel fires 'scroll' too and would otherwise hijack // scrollEl and permanently strand the icon in its not-scrolled color. var target = e && e.target; if (target && target !== document && target !== window && target !== document.documentElement && target !== document.body && typeof target.scrollTop === 'number' && target.scrollHeight > target.clientHeight + 50) { scrollEl = target; } updateScrollState(); clearTimeout(scrollSettleTimer); scrollSettleTimer = setTimeout(function () { cdT = 0; updateScrollState(); }, 150); } if (scrollColorsEnabled) { scrollEl = detectScrollContainer(); window.addEventListener('scroll', handleScroll, { passive: true }); document.addEventListener('scroll', handleScroll, { passive: true, capture: true }); updateScrollState(); // Re-check when any nav item's expanded state changes (mega-menu open/close) new MutationObserver(updateScrollState).observe(document.body, { attributes: true, attributeFilter: ['aria-expanded'], subtree: true, }); } // ── INIT ── // Launch mode is confirmed by Liquid server-side (wh_launch_mode == 'Header'), // so no API fetch or async mode check is needed here. function init() { root.style.display = ''; fetchCount(); // True once the icon has been relocated into its header slot. function isPlaced() { var slot = root.closest('[data-wl-slot]'); return !!(slot && document.contains(root)); } // Safe to call repeatedly. Once already placed, relocateIcon() itself // would no-op — but refineExistingPlacement() still runs on every // scheduled retry, since a same-row neighbor's true glyph (e.g. a custom // element's Shadow DOM content) may not have existed yet the first time // we placed the icon. See refineExistingPlacement()'s own comment. function place() { if (!isPlaced()) { relocateIcon(); } else { // Still re-validate on every retry, not just once isPlaced() flips // true — deriveContainer() can resolve to a different (more // correct) container once the theme's layout has settled, and // refineExistingPlacement() alone can't move the icon between // containers, only adjust its margin within whichever one it's // already in. See deriveContainer()'s own comment for why the // first attempt can land in the wrong one on some themes. var cartEl = findCartLink(); var derived = cartEl && deriveContainer(cartEl); var currentSlot = root.closest('[data-wl-slot]'); if (derived && currentSlot && currentSlot.parentElement !== derived.container) { relocateIcon(); } else { refineExistingPlacement(); } } if (scrollColorsEnabled) updateScrollState(); } // Fast attempts, plus later backstops. On slow devices/networks the theme // header (e.g. Prestige's custom element) may not be laid out // until well after 2.5s. Without the later retries the icon is stranded at // the bottom of

糖心传媒

and never appears in the header — which is why it // showed up on some phones but not others. function scheduleAttempts() { place(); [400, 1000, 2500, 4000, 8000, 15000].forEach(function (ms) { setTimeout(place, ms); }); } if (document.readyState === 'loading') { document.addEventListener('DOMContentLoaded', scheduleAttempts); } else { scheduleAttempts(); } // Resilient watcher: // ? re-inject if the theme removes our icon (SPA nav / header re-render), and // ? keep hunting for the cart icon until we are actually placed — this is what // makes the header icon appear reliably regardless of how slowly the device // renders the header. var debounce = null; var stopHuntAt = Date.now() + 20000; // stop actively hunting after 20s new MutationObserver(function () { if (!document.contains(root)) { // Icon was removed by a theme re-render — put it back. clearTimeout(debounce); debounce = setTimeout(place, 100); } else if (!isPlaced() && Date.now() < stopHuntAt) { // Still stranded (cart wasn't ready during the timed attempts) — retry as // the header mutates its way into existence. clearTimeout(debounce); debounce = setTimeout(place, 120); } }).observe(document.body, { childList: true, subtree: true }); } init(); })();