Preload/Prefetch page on hovering.
// ==UserScript==
// @name InstantPage Super Lite
// @namespace Need4Speed
// @version 1.4.6
// @author -
// @match *://*/*
// @noframes
// @run-at document-idle
// @grant none
// @description Preload/Prefetch page on hovering.
// ==/UserScript==
var EXCLUDE = new RegExp(/login|logout|register|signin|signup|signout|pay|create|edit|download|del|reset|submit|doubleclick|googleads|exit|unread/);
let t, e, n, o, i, a = null,
s = 65,
c = new Set;
const r = 1111;
function d(t) {
o = performance.now();
const e = t.target.closest("a");
m(e) && p(e.href, "high")
}
function u(t) {
if (performance.now() - o < r) return;
if (!("closest" in t.target)) return;
const e = t.target.closest("a");
m(e) && (e.addEventListener("mouseout", f, {
passive: !0
}), i = setTimeout(() => {
p(e.href, "high"), i = void 0
}, s))
}
function l(t) {
const e = t.target.closest("a");
m(e) && p(e.href, "high")
}
function f(t) {
t.relatedTarget && t.target.closest("a") == t.relatedTarget.closest("a") || i && (clearTimeout(i), i = void 0)
}
function h(t) {
if (performance.now() - o < r) return;
const e = t.target.closest("a");
if (t.which > 1 || t.metaKey || t.ctrlKey) return;
if (!e) return;
e.addEventListener("click", function (t) {
1337 != t.detail && t.preventDefault()
}, {
capture: !0,
passive: !1,
once: !0
});
const n = new MouseEvent("click", {
view: window,
bubbles: !0,
cancelable: !1,
detail: 1337
});
e.dispatchEvent(n)
}
function m(o) {
if (o.href.match(EXCLUDE)) {return}
if (o && o.href && (!n || "instant" in o.dataset)) {
if (o.origin != location.origin) {
if (!(e || "instant" in o.dataset) || !a) return
}
if (["http:", "https:"].includes(o.protocol) && ("http:" != o.protocol || "https:" != location.protocol) && (t || !o.search || "instant" in o.dataset) && !(o.hash && o.pathname + o.search == location.pathname + location.search || "noInstant" in o.dataset)) return !0
}
}
function p(t, e = "auto") {
if (c.has(t)) return;
const n = document.createElement("link");
n.rel = "prefetch", n.href = t, n.fetchPriority = e, n.as = "document", document.head.appendChild(n), c.add(t)
}! function () {
if (!document.createElement("link").relList.supports("prefetch")) return;
const o = "instantVaryAccept" in document.body.dataset || "Shopify" in window,
i = navigator.userAgent.indexOf("Chrome/");
i > -1 && (a = parseInt(navigator.userAgent.substring(i + "Chrome/".length)));
if (o && a && a < 110) return;
const c = "instantMousedownShortcut" in document.body.dataset;
t = "instantAllowQueryString" in document.body.dataset, e = "instantAllowExternalLinks" in document.body.dataset, n = "instantWhitelist" in document.body.dataset;
const r = {
capture: !0,
passive: !0
};
let f = !1,
v = !1,
g = !1;
if ("instantIntensity" in document.body.dataset) {
const t = document.body.dataset.instantIntensity;
if (t.startsWith("mousedown")) f = !0, "mousedown-only" == t && (v = !0);
else if (t.startsWith("viewport")) {
const e = navigator.connection && navigator.connection.saveData,
n = navigator.connection && navigator.connection.effectiveType && navigator.connection.effectiveType.includes("2g");
e || n || ("viewport" == t ? document.documentElement.clientWidth * document.documentElement.clientHeight < 45e4 && (g = !0) : "viewport-all" == t && (g = !0))
} else {
const e = parseInt(t);
isNaN(e) || (s = e)
}
}
v || document.addEventListener("touchstart", d, r);
f ? c || document.addEventListener("mousedown", l, r) : document.addEventListener("mouseover", u, r);
c && document.addEventListener("mousedown", h, r);
if (g) {
let t = window.requestIdleCallback;
t || (t = (t => {
t()
})), t(function () {
const t = new IntersectionObserver(e => {
e.forEach(e => {
if (e.isIntersecting) {
const n = e.target;
t.unobserve(n), p(n.href)
}
})
});
document.querySelectorAll("a").forEach(e => {
m(e) && t.observe(e)
})
}, {
timeout: 1500
})
}
}();