// John Malecki — LensAdvisor Custom JS (COMPLETE — replaces everything in the Custom JS field) // Re-run safe: everything is inside the guard block so re-injection can't collide on // redeclared variables. The button logic reads the REAL variant from the MAIN product form // (LensAdvizor.selectedOrDefaultVariant desyncs on this theme — e.g. it stays on "Dimmers" // after switching to RX), resyncs LA, and shows the correct button (LA "Select Lenses" on // RX/Prescription variants, native "Add to cart" on Standard / Dimmers / Sunglasses) — on // in-page variant changes AND on direct ?variant= page loads. if (!window.__laJMCustomInit) { window.__laJMCustomInit = true; // ---- helpers ---- // The MAIN product form (the one holding the LA button / payment container). There is also a // Shop Pay installments form on the page whose id would otherwise be read first — anchor to // the real product form so the reader and the blocker use the same source of truth. function laMainForm() { var anchor = document.querySelector('.product-form__buy-buttons product-payment-container, .product-form__buy-buttons lensadvizor-btn'); var f = anchor && anchor.closest('form[action*="/cart/add"]'); if (f) return f; return document.querySelector('.product-form__buy-buttons form[action*="/cart/add"]') || document.querySelector('form[action*="/cart/add"]'); } function laFormVariant() { var f = laMainForm(); if (!f) return null; var i = f.querySelector('[name="id"]'); return i ? i.value : null; } function laVariantInFlow(v) { return !!(window.LensAdvizor && LensAdvizor.variants && v && LensAdvizor.variants[String(v)]); } // ---- observer machinery (declared before use so handlers can pause it) ---- var laObserver; var laObsTarget = document.querySelector('#MainContent') || document.querySelector('.product') || document.body; function laReconnect() { if (laObserver && laObsTarget) laObserver.observe(laObsTarget, { childList: true, subtree: true }); } // Keep LA in sync with the REAL variant and show the correct button. // Fixes: (a) LA.selectedOrDefaultVariant desync; (b) the Section-Rendering theme stripping the // button; (c) on RX variants the "Select Lenses" button is nested INSIDE the native submit //

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