(() => { if (window.__commerceAiNavigationFeedbackInstalled) return; window.__commerceAiNavigationFeedbackInstalled = true; const storageKey = "commerce-ai-navigation-feedback"; function isModifiedClick(event) { return event.metaKey || event.ctrlKey || event.shiftKey || event.altKey; } function sameDocumentNavigation(nextUrl) { return nextUrl.pathname === window.location.pathname && nextUrl.search === window.location.search; } function ignoredAnchor(anchor) { const href = anchor.getAttribute("href"); if (!href) return true; if (href.startsWith("mailto:") || href.startsWith("tel:") || href.startsWith("javascript:")) return true; if (anchor.target && anchor.target !== "_self") return true; if (anchor.hasAttribute("download")) return true; return new URL(anchor.href).origin !== window.location.origin; } function labelFor(prefix, element, fallback) { const text = (element && (element.getAttribute("aria-label") || element.textContent || "")).replace(/\s+/g, " ").trim(); if (!text) return fallback; return prefix + " " + text.slice(0, 16) + (text.length > 16 ? "..." : ""); } function rememberFeedback(label) { try { window.sessionStorage.setItem(storageKey, JSON.stringify({ expiresAt: Date.now() + 1600, label: label || "正在打开..." })); } catch {} } function forgetFeedback() { try { window.sessionStorage.removeItem(storageKey); } catch {} } function completionLabel(label) { if ((label || "").indexOf("正在提交") === 0) return "已更新"; if ((label || "").indexOf("正在处理") === 0) return "已处理"; return "已打开"; } function showFeedback(label, element, persist, settled) { if (window.__commerceAiNavigationFeedbackHydrated) return; document.documentElement.setAttribute("data-navigation-pending", ""); document.documentElement.setAttribute("data-last-navigation-feedback", label || "正在打开..."); if (persist) rememberFeedback(label); if (element) { element.setAttribute("data-navigation-pending", "true"); element.setAttribute("aria-busy", "true"); } let root = document.getElementById("prehydration-navigation-feedback"); if (!root) { root = document.createElement("div"); root.id = "prehydration-navigation-feedback"; root.className = "prehydration-navigation-feedback"; root.setAttribute("aria-live", "polite"); root.setAttribute("aria-atomic", "true"); root.innerHTML = ''; document.body.appendChild(root); } root.toggleAttribute("data-settled", Boolean(settled)); const progressTrack = root.querySelector(".navigation-progress-track"); if (progressTrack) progressTrack.toggleAttribute("data-settled", Boolean(settled)); const labelNode = root.querySelector("[data-prehydration-navigation-label]"); if (labelNode) labelNode.textContent = label || "正在打开..."; window.clearTimeout(window.__commerceAiNavigationFeedbackTimeout); window.__commerceAiNavigationFeedbackTimeout = window.setTimeout(() => { root && root.remove(); forgetFeedback(); document.documentElement.removeAttribute("data-navigation-pending"); element && element.removeAttribute("data-navigation-pending"); element && element.removeAttribute("aria-busy"); }, 8000); } function showRememberedFeedback() { let payload = null; try { payload = JSON.parse(window.sessionStorage.getItem(storageKey) || "null"); } catch {} forgetFeedback(); if (!payload || typeof payload.label !== "string" || Number(payload.expiresAt) < Date.now()) return; const start = () => { showFeedback(completionLabel(payload.label), null, false, true); window.clearTimeout(window.__commerceAiNavigationArrivalTimeout); window.__commerceAiNavigationArrivalTimeout = window.setTimeout(() => { const root = document.getElementById("prehydration-navigation-feedback"); root && root.remove(); if (!window.__commerceAiNavigationFeedbackHydrated) { document.documentElement.removeAttribute("data-navigation-pending"); } }, 1100); }; if (document.body) { start(); } else { document.addEventListener("DOMContentLoaded", start, { once: true }); } } showRememberedFeedback(); window.addEventListener("click", (event) => { if (window.__commerceAiNavigationFeedbackHydrated) return; if (event.defaultPrevented || event.button !== 0 || isModifiedClick(event)) return; const target = event.target; if (!(target instanceof Element)) return; const anchor = target.closest("a[href]"); if (!(anchor instanceof HTMLAnchorElement)) return; if (ignoredAnchor(anchor)) return; const nextUrl = new URL(anchor.href); if (sameDocumentNavigation(nextUrl)) return; showFeedback(labelFor("正在打开", anchor, "正在打开..."), anchor, true, false); }, { capture: true }); window.addEventListener("submit", (event) => { if (window.__commerceAiNavigationFeedbackHydrated) return; if (event.defaultPrevented) return; const form = event.target; if (!(form instanceof HTMLFormElement)) return; const submitter = event.submitter instanceof HTMLElement ? event.submitter : form; showFeedback(labelFor("正在提交", submitter, "正在提交..."), submitter, true, false); }, { capture: true }); })();