1

fly-engine.js

@@ -0,0 +1,80 @@
+let t, e;
+const n = new Set,
+    o = document.createElement("link"),
+    s = o.relList && o.relList.supports && o.relList.supports("prefetch") && window.IntersectionObserver && "isIntersecting" in IntersectionObserverEntry.prototype,
+    i = "instantAllowQueryString" in document.body.dataset,
+    r = "instantAllowExternalLinks" in document.body.dataset,
+    a = "instantWhitelist" in document.body.dataset;
+let c = 65,
+    d = !1,
+    l = !1,
+    u = !1;
+if ("instantIntensity" in document.body.dataset) {
+    const t = document.body.dataset.instantIntensity;
+    if ("mousedown" == t.substr(0, "mousedown".length)) d = !0, "mousedown-only" == t && (l = !0);
+    else if ("viewport" == t.substr(0, "viewport".length)) navigator.connection && (navigator.connection.saveData || navigator.connection.effectiveType.includes("2g")) || ("viewport" == t ? document.documentElement.clientWidth * document.documentElement.clientHeight < 45e4 && (u = !0) : "viewport-all" == t && (u = !0));
+    else {
+        const e = parseInt(t);
+        isNaN(e) || (c = e)
+    }
+}
+if (s) {
+    const n = {
+        capture: !0,
+        passive: !0
+    };
+    if (l || document.addEventListener("touchstart", function (t) {
+            e = performance.now();
+            const n = t.target.closest("a");
+            if (!f(n)) return;
+            h(n.href)
+        }, n), d ? document.addEventListener("mousedown", function (t) {
+            const e = t.target.closest("a");
+            if (!f(e)) return;
+            h(e.href)
+        }, n) : document.addEventListener("mouseover", function (n) {
+            if (performance.now() - e < 1100) return;
+            const o = n.target.closest("a");
+            if (!f(o)) return;
+            o.addEventListener("mouseout", m, {
+                passive: !0
+            }), t = setTimeout(() => {
+                h(o.href), t = void 0
+            }, c)
+        }, n), u) {
+        let t;
+        (t = window.requestIdleCallback ? t => {
+            requestIdleCallback(t, {
+                timeout: 1500
+            })
+        } : t => {
+            t()
+        })(() => {
+            const t = new IntersectionObserver(e => {
+                e.forEach(e => {
+                    if (e.isIntersecting) {
+                        const n = e.target;
+                        t.unobserve(n), h(n.href)
+                    }
+                })
+            });
+            document.querySelectorAll("a").forEach(e => {
+                f(e) && t.observe(e)
+            })
+        })
+    }
+}
+
+function m(e) {
+    e.relatedTarget && e.target.closest("a") == e.relatedTarget.closest("a") || t && (clearTimeout(t), t = void 0)
+}
+
+function f(t) {
+    if (t && t.href && (!a || "instant" in t.dataset) && (r || t.origin == location.origin || "instant" in t.dataset) && ["http:", "https:"].includes(t.protocol) && ("http:" != t.protocol || "https:" != location.protocol) && (i || !t.search || "instant" in t.dataset) && !(t.hash && t.pathname + t.search == location.pathname + location.search || "noInstant" in t.dataset)) return !0
+}
+
+function h(t) {
+    if (n.has(t)) return;
+    const e = document.createElement("link");
+    e.rel = "prefetch", e.href = t, document.head.appendChild(e), n.add(t)
+}