/*
* ajaxify.js
* Ajaxify - The Ajax Plugin
* https://4nf.org/
*
* Copyright Arvind Gupta; MIT Licensed
*
* Version 8.2.8
*/
/* INTERFACE: See also https://4nf.org/interface/
Simplest plugin call:
let ajaxify = new Ajaxify({options});
Ajaxifies the whole site, dynamically replacing the elements specified in "elements" across pages
*/
function _won(a, b, c = false) { if(c === false) c = {once: true}; setTimeout( () => window.addEventListener(a, b, c) ); };
//Module global helpers - if used by you already, please rename and rebuild
let Ay, //to become the global handle for the main Ajaxify parent class
rootUrl = location.origin, inlineclass = "ajy-inline",
bdy,
qa=(s,o=document)=>o.querySelectorAll(s),
qs=(s,o=document)=>o.querySelector(s),
qha=(e)=>qs("head").appendChild(e),
prC=(e)=>e.parentNode.removeChild(e),
dcE=(e)=>document.createElement(e),
_copyAttributes=(el, S, flush)=>{ //copy all attributes of element generically
if(flush) [...el.attributes].forEach(e => el.removeAttribute(e.name)); //delete all old attributes
[...S.attributes].forEach(e => e.nodeValue == "ajy-body" || el.setAttribute(e.nodeName, e.nodeValue)); //low-level insertion
};
// The main plugin - Ajaxify
// Is passed the global options
// Checks for necessary pre-conditions - otherwise gracefully degrades
// Initialises sub-plugins
// Calls Pronto
class Ajaxify { constructor(options) {
String.prototype.iO = function(s) { return this.toString().indexOf(s) + 1; }; //Intuitively better understandable shorthand for String.indexOf() - String.iO()
Ay = this;
//Options default values
Ay.s = {
// basic config parameters
elements: "body", //selector for element IDs that are going to be swapped (e.g. "#el1, #el2, #el3")
selector : "a:not(.no-ajaxy)", //selector for links to trigger swapping - not elements to be swapped - i.e. a selection of links
forms : "form:not(.no-ajaxy)", // selector for ajaxifying forms - set to "false" to disable
canonical : false, // Fetch current URL from "canonical" link if given, updating the History API. In case of a re-direct...
refresh : false, // Refresh the page even if link clicked is current page
// visual effects settings
requestDelay : 0, //in msec - Delay of Pronto request
scrolltop : "s", // Smart scroll, true = always scroll to top of page, false = no scroll
scrollDelay : false, // Minimal delay on all scroll effects in milliseconds, useful in case of e.g. smooth scroll
bodyClasses : true, // Copy body attributes from target page, set to "false" to disable
// script and style handling settings, prefetch
deltas : true, // true = deltas loaded, false = all scripts loaded
asyncdef : true, // default async value for dynamically inserted external scripts, false = synchronous / true = asynchronous
alwayshints : false, // strings, - separated by ", " - if matched in any external script URL - these are always loaded on every page load
inline : true, // true = all inline scripts loaded, false = only specific inline scripts are loaded
inlinehints : false, // strings - separated by ", " - if matched in any inline scripts - only these are executed - set "inline" to false beforehand
inlineskip : "adsbygoogle", // strings - separated by ", " - if matched in any inline scripts - these are NOT are executed - set "inline" to true beforehand
inlineappend : true, // append scripts to the main content element, instead of "eval"-ing them
intevents: true, // intercept events that are fired only on classic page load and simulate their trigger on ajax page load ("DOMContentLoaded")
style : true, // true = all style tags in the head loaded, false = style tags on target page ignored
prefetchoff : false, // Plugin pre-fetches pages on hoverIntent - true = set off completely // strings - separated by ", " - hints to select out
// debugging & advanced settings
verbosity : 0, //Debugging level to console: default off. Can be set to 10 and higher (in case of logging enabled)
memoryoff : false, // strings - separated by ", " - if matched in any URLs - only these are NOT executed - set to "true" to disable memory completely
cb : 0, // callback handler on completion of each Ajax request - default 0
pluginon : true, // Plugin set "on" or "off" (==false) manually
passCount: false // Show number of pass for debugging
};
Ay.pass = 0; Ay.currentURL = ""; Ay.h = {};
Ay.parse = (s, pl) => (pl = dcE('div'), pl.insertAdjacentHTML('afterbegin', s), pl.firstElementChild); // HTML parser
Ay.trigger = (t, e) => { let ev = document.createEvent('HTMLEvents'); ev.initEvent("pronto." + t, true, false); ev.data = e ? e : Ay.Rq("e"); window.dispatchEvent(ev); };
Ay.internal = (url) => { if (!url) return false; if (typeof(url) === "object") url = url.href; if (url==="") return true; return url.substring(0,rootUrl.length) === rootUrl || !url.iO(":"); };
Ay.intevents = () => {
let iFn = function (a, b, c = false) { if ((this === document || this === window) && a=="DOMContentLoaded") setTimeout(b); else this.ael(a,b,c);}; // if "DOMContentLoaded" - execute function, else - add event listener
EventTarget.prototype.ael = EventTarget.prototype.addEventListener; // store original method
EventTarget.prototype.addEventListener = iFn; // start intercepting event listener addition
};
function _on(eventName, elementSelector, handler, el = document) { //e.currentTarget is document when the handler is called
el.addEventListener(eventName, function(e) {
// loop parent nodes from the target to the delegation node
for (var target = e.target; target && target != this; target = target.parentNode) {
if (target.matches(elementSelector)) {
handler(target, e);
break;
}
}
}, !!eventName.iO('mo'));
}
class Hints { constructor(h) { let _ = this;
_.list = (typeof h === 'string' && h.length > 0) ? h.split(", ") : false; //hints are passed as a comma separated string
_.find = (t) => (!t || !_.list) ? false : _.list.some(h => t.iO(h)); //iterate through hints within passed text (t)
}}
function lg(m){ Ay.s.verbosity && console && console.log(m); }
// The GetPage class
// First parameter (o) is a switch:
// empty - returns cache
// <URL> - loads HTML via Ajax, second parameter "p" must be callback
// + - pre-fetches page, second parameter "p" must be URL, third parameter "p2" must be callback
// - - loads page into DOM and handle scripts, second parameter "p" must hold selection to load
// x - returns response
// otherwise - returns selection of current page to client
class GetPage { constructor() {
let rsp = 0, cb = 0, plus = 0, rt = "", ct = 0, rc = 0, ac = 0,
//Regexes for escaping fetched HTML of a whole page - best of Baluptons Ajaxify
//Makes it possible to pre-fetch an entire page
docType = /<\!DOCTYPE[^>]*>/i,
tagso = /<(html|head|link)([\s\>])/gi,
tagsod = /<(body)([\s\>])/gi,
tagsc = /<\/(html|head|body|link)\>/gi,
//Helper strings
div12 = '<div class="ajy-$1"$2',
divid12 = '<div id="ajy-$1"$2';
this.a = function (o, p, p2) {
if (!o) return Ay.cache.g();
if (o.iO("/")) {
cb = p;
if(plus == o) return;
return _lPage(o);
}
if (o === "+") {
plus = p;
cb = p2;
return _lPage(p, true);
}
if (o === "a") { if (rc > 0) {_cl(); ac.abort();} return; }
if (o === "s") return ((rc) ? 1 : 0) + rt;
if (o === "-") return _lSel(p);
if (o === "x") return rsp;
if (!Ay.cache.g()) return;
if (o === "body") return qs("#ajy-" + o, Ay.cache.g());
if (o === "script") return qa(o, Ay.cache.g());
return qs((o === "title") ? o : ".ajy-" + o, Ay.cache.g());
};
let _lSel = t => (
Ay.pass++,
_lEls(t),
qa("body > script").forEach(e => (e.classList.contains(inlineclass)) ? prC(e) : false),
Ay.scripts.t(),
Ay.scripts.s(),
Ay.scripts.c()
),
_lPage = (h, pre) => {
if (h.iO("#")) h = h.split("#")[0];
if (Ay.Rq("is") || !Ay.cache.l(h)) return _lAjax(h, pre);
plus = 0;
if (cb) return cb();
},
_ld = (t, h) => {
if(!h) return; //no input
var c = h.cloneNode(true); // clone element node (true = deep clone)
qa("script", c).forEach(e => prC(e));
_copyAttributes(t, c, true);
t.innerHTML = c.innerHTML;
},
_lEls = t =>
Ay.cache.g() && !_isBody(t) && t.forEach(function(e) {
_ld(e, qs("#" + e.getAttribute("id"), Ay.cache.g()));
}),
_isBody = t => t[0].tagName.toLowerCase() == "body" && (_ld(bdy, qs("#ajy-body", Ay.cache.g())), 1),
_lAjax = (hin, pre) => {
var ispost = Ay.Rq("is");
if (pre) rt="p"; else rt="c";
ac = new AbortController(); // set abort controller
rc++; // set active request counter
fetch(hin, {
method: ((ispost) ? "POST" : "GET"),
cache: "default",
mode: "same-origin",
headers: {"X-Requested-With": "XMLHttpRequest"},
body: (ispost) ? Ay.Rq("d") : null,
signal: ac.signal
}).then(r => {
if (!r.ok || !_isHtml(r)) {
if (!pre) {location.href = hin;}
return;
}
rsp = r; // store response
return r.text();
}).then(r => {
_cl(1); // clear only plus variable
if (!r) return; // ensure data
rsp.responseText = r; // store response text
return _cache(hin, r);
}).catch(err => {
if(err.name === "AbortError") return;
try {
Ay.trigger("error", err);
lg("Response text : " + err.message);
return _cache(hin, err.message, err);
} catch (e) {}
}).finally(() => rc--); // reset active request counter
},
_cl = c => (plus = 0, (!c) ? cb = 0 : 0), // clear plus AND/OR callback
_cache = (href, h, err) => Ay.cache.s(Ay.parse(_parseHTML(h))) && (Ay.pages.p([href, Ay.cache.g()]), 1) && cb && cb(err),
_isHtml = x => (ct = x.headers.get("content-type")) && (ct.iO("html") || ct.iO("form-")),
_parseHTML = h => dcE("html").innerHTML = _replD(h).trim(),
_replD = h => String(h).replace(docType, "").replace(tagso, div12).replace(tagsod, divid12).replace(tagsc, "</div>")
}}
// The Rq plugin - stands for request
// Stores all kinds of and manages data concerning the pending request
// Simplifies the Pronto plugin by managing request data separately, instead of passing it around...
// Second parameter (p) : data
// First parameter (o) values:
// = - check whether internally stored "href" ("h") variable is the same as the global currentURL
// ! - update last request ("l") variable with passed href
// ? - Edin's intelligent plausibility check - can spawn an external fetch abort
// v - validate value passed in "p", which is expected to be a click event value - also performs "i" afterwards
// i - initialise request defaults and return "c" (currentTarget)
// h - access internal href hard
// e - set / get internal "e" (event)
// p - set / get internal "p" (push flag)
// is - set / get internal "ispost" (flag whether request is a POST)
// d - set / get internal "d" (data for central fetch())
// C - set / get internal "can" ("href" of canonical URL)
// c - check whether simple canonical URL is given and return, otherwise return value passed in "p"
class RQ { constructor() {
let ispost = 0, data = 0, push = 0, can = 0, e = 0, c = 0, h = 0, l = false;
this.a = function (o, p, t) {
if(o === "=") {
if(p) return h === Ay.currentURL //check whether internally stored "href" ("h") variable is the same as the global currentURL
|| h === l; //or href of last request ("l")
return h === Ay.currentURL; //for click requests
}
if(o === "!") return l = h; //store href in "l" (last request)
if(o === "?") { //Edin previously called this "isOK" - powerful intelligent plausibility check
let xs=Ay.fn("s");
if (!xs.iO("0") && !p) Ay.fn("a"); //if fetch is not idle and new request is standard one, do ac.abort() to set it free
if (xs==="1c" && p) return false; //if fetch is processing standard request and new request is prefetch, cancel prefetch until fetch is finished
if (xs==="1p" && p) Ay.s.memoryoff ? Ay.fn("a") : 1; //if fetch is processing prefetch request and new request is prefetch do nothing (see [options] comment below)
//([semaphore options for requests] Ay.fn("a") -> abort previous, proceed with new | return false -> leave previous, stop new | return true -> proceed)
return true;
}
if(o === "v") { //validate value passed in "p", which is expected to be a click event value - also performs "i" afterwards
if(!p) return false; //ensure data
_setE(p, t); //Set event and href in one go
if(!Ay.internal(h)) return false; //if not internal -> report failure
o = "i"; //continue with "i"
}
if(o === "i") { //initialise request defaults and return "c" (currentTarget)
ispost = false; //GET assumed
data = null; //reset data
push = true; //assume we want to push URL to the History API
can = false; //reset can (canonical URL)
return h; //return "h" (href)
}
if(o === "h") { // Access href hard
if(p) {
if (typeof p === "string") e = 0; // Reset e -> default handler
h = (p.href) ? p.href : p; // Poke in href hard
}
return h; //href
}
if(o === "e") { //set / get internal "e" (event)
if(p) _setE(p, t); //Set event and href in one go
return e ? e : h; // Return "e" or if not given "h"
}
if(o === "p") { //set / get internal "p" (push flag)
if(p !== undefined) push = p;
return push;
}
if(o === "is") { //set / get internal "ispost" (flag whether request is a POST)
if(p !== undefined) ispost = p;
return ispost;
}
if(o === "d") { //set / get internal "d" (data for central fetch())
if(p) data = p;
return data;
}
if(o === "C") { //set internal "can" ("href" of canonical URL)
if(p !== undefined) can = p;
return can;
}
if(o === "c") return can && can !== p && !p.iO("#") && !p.iO("?") ? can : p; //get internal "can" ("href" of canonical URL)
};
let _setE = (p, t) => h = typeof (e = p) !== "string" ? (e.currentTarget && e.currentTarget.href) || (t && t.href) || e.currentTarget.action || e.originalEvent.state.url : e
}}
// The Frms plugin - stands for forms
// Ajaxify all forms in the specified divs
// Switch (o) values:
// d - set divs variable
// a - Ajaxify all forms in divs
class Frms { constructor() {
let fm = 0, divs = 0;
this.a = function (o, p) {
if (!Ay.s.forms || !o) return; //ensure data
if(o === "d") divs = p; //set divs variable
if(o === "a") divs.forEach(div => { //iterate through divs
Array.prototype.filter.call(qa(Ay.s.forms, div), function(e) { //filter forms
let c = e.getAttribute("action");
return(Ay.internal(c && c.length > 0 ? c : Ay.currentURL)); //ensure "action"
}).forEach(frm => { //iterate through forms
frm.addEventListener("submit", q => { //create event listener
fm = q.target; // fetch target
p = _k(); //Serialise data
var g = "get", //assume GET
m = fm.getAttribute("method"); //fetch method attribute
if (m.length > 0 && m.toLowerCase() == "post") g = "post"; //Override with "post"
var h, a = fm.getAttribute("action"); //fetch action attribute
if (a && a.length > 0) h = a; //found -> store
else h = Ay.currentURL; //not found -> select current URL
Ay.Rq("v", q); //validate request
if (g == "get") h = _b(h, p); //GET -> copy URL parameters
else {
Ay.Rq("is", true); //set is POST in request data
Ay.Rq("d", p); //save data in request data
}
Ay.trigger("submit", h); //raise pronto.submit event
Ay.pronto(0, { href: h }); //programmatically change page
q.preventDefault(); //prevent default form action
return(false); //success -> disable default behaviour
});
});
});
};
let _k = () => {
let o = new FormData(fm), n = qs("input[name][type=submit]", fm);
if (n) o.append(n.getAttribute("name"), n.value);
return o;
},
_b = (m, n) => {
let s = "";
if (m.iO("?")) m = m.substring(0, m.iO("?"));
for (var [k, v] of n.entries()) s += `${k}=${encodeURIComponent(v)}&`;
return `${m}?${s.slice(0,-1)}`;
}
}}
// The Pronto plugin - Pronto variant of Ben Plum's Pronto plugin - low level event handling in general
// Works on a selection, passed to Pronto by the selection, which specifies, which elements to Ajaxify
// Switch (h) values:
// i - initialise Pronto
// <object> - fetch href part and continue with _request()
// <URL> - set "h" variable of Rq hard and continue with _request()
class Pronto { constructor() {
let gsl = 0, requestTimer = 0, pd = 150, ptim = 0;
Ay.h.prefetchoff = new Hints(Ay.s.prefetchoff);
this.a = function (sl, h) {
if(!h) return; //ensure data
if(h === "i") { //request to initialise
bdy = document.body;
if(!sl.length) sl = "body";
gsl = qa(sl); //copy selection to global selector
Ay.frms = new Frms().a; //initialise forms sub-plugin
if(Ay.s.idleTime) Ay.slides = new classSlides(Ay).a; //initialise optional slideshow sub-plugin
Ay.scrolly = new Scrolly(); //initialise scroll effects sub-plugin
(Ay.offsets = new Offsets()).f();
Ay.hApi = new HApi();
_init_p(); //initialise Pronto sub-plugin
return sl; //return query selector for chaining
}
if(typeof(h) === "object") { //jump to internal page programmatically -> handler for forms sub-plugin
Ay.Rq("h", h);
_request();
return;
}
if(h.iO("/")) { //jump to internal page programmatically -> default handler
Ay.Rq("h", h);
_request(true);
}
};
let _init_p = () => {
Ay.hApi.r(window.location.href);
window.addEventListener("popstate", _onPop);
if (Ay.s.prefetchoff !== true) {
_on("mouseenter", Ay.s.selector, _preftime); // start prefetch timeout
_on("mouseleave", Ay.s.selector, _prefstop); // stop prefetch timeout
_on("touchstart", Ay.s.selector, _prefetch);
}
_on("click", Ay.s.selector, _click, bdy);
Ay.frms("d", qa("body"));
Ay.frms("a");
Ay.frms("d", gsl);
if(Ay.s.idleTime) Ay.slides("i");
},
_preftime = (t, e) => (_prefstop(), ptim = setTimeout(()=> _prefetch(t, e), pd)), // call prefetch if timeout expires without being cleared by _prefstop
_prefstop = () => clearTimeout(ptim),
_prefetch = (t, e) => {
if(Ay.s.prefetchoff === true) return;
if (!Ay.Rq("?", true)) return;
var href = Ay.Rq("v", e, t);
if (Ay.Rq("=", true) || !href || Ay.h.prefetchoff.find(href)) return;
Ay.fn("+", href, () => false);
},
_stopBubbling = e => (
e.preventDefault(),
e.stopPropagation(),
e.stopImmediatePropagation()
),
_click = (t, e, notPush) => {
if(!Ay.Rq("?")) return;
var href = Ay.Rq("v", e, t);
if(!href || _exoticKey(t)) return;
if(href.substr(-1) ==="#") return true;
if(_hashChange()) {
Ay.hApi.r(href);
return true;
}
Ay.scrolly.p();
_stopBubbling(e);
if(Ay.Rq("=")) Ay.hApi.r();
if(Ay.s.refresh || !Ay.Rq("=")) _request(notPush);
},
_request = notPush => {
Ay.Rq("!");
if(notPush) Ay.Rq("p", false);
Ay.trigger("request");
Ay.fn(Ay.Rq("h"), err => {
if (err) {
lg("Error in _request : " + err);
Ay.trigger("error", err);
}
_render();
});
},
_render = () => {
Ay.trigger("beforeload");
if(Ay.s.requestDelay) {
if(requestTimer) clearTimeout(requestTimer);
requestTimer = setTimeout(_doRender, Ay.s.requestDelay);
} else _doRender();
},
_onPop = e => {
var url = window.location.href;
Ay.Rq("i");
Ay.Rq("h", url);
Ay.Rq("p", false);
Ay.scrolly.p();
if (!url || url === Ay.currentURL) return;
Ay.trigger("request");
Ay.fn(url, _render);
},
_doRender = () => {
Ay.trigger("load");
if(Ay.s.bodyClasses) _copyAttributes(bdy, Ay.fn("body"), true);
var href = Ay.Rq("h"), title;
href = Ay.Rq("c", href);
if(Ay.Rq("p")) Ay.hApi.p(href); else Ay.hApi.r(href);
if(title = Ay.fn("title")) qs("title").innerHTML = title.innerHTML;
Ay.Rq("C", Ay.fn("-", gsl));
Ay.frms("a");
Ay.scrolly.l();
_gaCaptureView(href);
Ay.trigger("render");
if(Ay.s.passCount) qs("#" + Ay.s.passCount).innerHTML = "Pass: " + Ay.pass;
if(Ay.s.cb) Ay.s.cb();
},
_gaCaptureView = href => {
href = "/" + href.replace(rootUrl,"");
if (typeof window.ga !== "undefined") window.ga("send", "pageview", href);
else if (typeof window._gaq !== "undefined") window._gaq.push(["_trackPageview", href]);
},
_exoticKey = (t) => {
var href = Ay.Rq("h"), e = Ay.Rq("e"), tgt = e.currentTarget.target || t.target;
return (e.which > 1 || e.metaKey || e.ctrlKey || e.shiftKey || e.altKey || tgt === "_blank"
|| href.iO("wp-login") || href.iO("wp-admin"));
},
_hashChange = () => {
var e = Ay.Rq("e");
return (e.hash && e.href.replace(e.hash, "") === window.location.href.replace(location.hash, "") || e.href === window.location.href + "#");
}
}}
Ay.init = () => {
let o = options;
if (!o || typeof(o) !== "string") {
if (document.readyState === "complete" ||
(document.readyState !== "loading" && !document.documentElement.doScroll)) run();
else document.addEventListener('DOMContentLoaded', run);
return Ay;
}
else return Ay.pronto(0, o);
};
let run = () => {
Ay.s = Object.assign(Ay.s, options);
(Ay.pages = new Pages()).f();
Ay.pronto = new Pronto().a;
if (load()) {
Ay.pronto(Ay.s.elements, "i");
if (Ay.s.deltas) Ay.scripts.o();
}
},
load = () => {
if (!(window.history && window.history.pushState && window.history.replaceState) || !Ay.s.pluginon) {
lg("Gracefully exiting...");
return false;
}
lg("Ajaxify loaded..."); //verbosity option steers, whether this initialisation message is output
if (Ay.s.intevents) Ay.intevents(); // intercept events
Ay.scripts = new Scrpts(); Ay.h.inlinehints = new Hints(Ay.s.inlinehints); Ay.h.inlineskip = new Hints(Ay.s.inlineskip);
Ay.cache = new Cache();
Ay.memory = new Memory(); Ay.h.memoryoff = new Hints(Ay.s.memoryoff);
Ay.fn = Ay.getPage = new GetPage().a;
Ay.detScripts = new DetScripts();
Ay.addAll = new AddAll(); Ay.h.alwayshints = new Hints(Ay.s.alwayshints);
Ay.Rq = new RQ().a;
return true;
};
Ay.init(); // initialize Ajaxify on definition
}}
// The Cache class
// this.d = entire current page (as an object)
class Cache {
g(){ return this.d } //getter
s(v){ return this.d = v } //setter
l(u){ let v = Ay.memory.l(u); return this.s(v === false ? v : Ay.pages.l(v)) } //lookup URL and load
}
// The Memory class
// Usage: Ay.memory.l(<URL>) - returns the same URL if not turned off internally
class Memory {
l(h){
if (!h || Ay.s.memoryoff === true) return false;
if (Ay.s.memoryoff === false) return h;
return Ay.h.memoryoff.find(h) ? false : h;
}
}
// The Pages class
// this.d = Array of pages - [0] = URL // [1] = reference to whole page
class Pages {
f(){ this.d = [] } //flush
l(u){ if (this.P(u)) return this.d[this.i][1] } //lookup URL and return page
p(o){ if(this.P(o[0])) this.d[this.i]=o; else this.d.push(o) } //update or push page passed as an object
P(u){ return (this.i = this.d.findIndex(e => e[0] == u)) + 1 } //lookup page index and store in "i"
}
// The DetScripts class - stands for "detach scripts"
// Works on "s" <object> that is passed in and fills it
class DetScripts {
d(s) {
if(!(this.h = Ay.pass ? Ay.fn("head") : qs("head"))) return true; //If pass is 0 -> fetch head from DOM, otherwise from target page
this.lk = qa(Ay.pass ? ".ajy-link" : "link", this.h); //If pass is 0 -> fetch links from DOM, otherwise from target page
s.j = Ay.pass ? Ay.fn("script") : qa("script"); //If pass is 0 -> fetch JSs from DOM, otherwise from target page
s.c = this.x("stylesheet"); //Extract stylesheets
s.y = qa("style", this.h); //Extract style tags
s.can = this.x("canonical"); //Extract canonical tag
}
x(v){ return Array.prototype.filter.call(this.lk, e => e.getAttribute("rel").iO(v)) } //Extract link tags with given "rel"
}
// The Offsets class
// this.d = Array of pages - [0] = URL // [1] = offset
class Offsets {
f(){ this.d = [] } //flush internal offsets array - must be performed by parent
l(h){ if(h.iO("?")) h = h.split("?")[0]; //lookup page offset
return this.O(h) ? this.d[this.i][1] : 0; //return if found otherwise 0
}
p(h){ let us1 = h.iO("?") ? h.split("?")[0] : h, //initialise all helper variables in one go
us = us1.iO("#") ? us1.split("#")[0] : us1,
os = [us, (document.documentElement && document.documentElement.scrollTop) || bdy.scrollTop];
if(this.O(us)) this.d[this.i]=os; else this.d.push(os); // update if found, otherwise push
}
O(h){ return (this.i = this.d.findIndex(e => e[0] == h)) + 1 } //find URL in internal array - add 1 for convenience
}
// The Scrolly class
// operates on Ay.currentURL
class Scrolly { constructor() { if ('scrollRestoration' in history) history.scrollRestoration = 'manual' }
p(){ Ay.s.scrolltop == "s" && Ay.offsets.p(Ay.currentURL) }
l(){ let o = Ay.currentURL;
if(o.iO("#") && (o.iO("#") < o.length - 1)) { //if hash in URL and not standalone hash
let el = qs("#" + o.split("#")[1]); //fetch the element
if(!el) return; //nothing found -> return quickly
let box = el.getBoundingClientRect();
return this.s(box.top + window.pageYOffset - document.documentElement.clientTop); // ...animate to ID
}
if(Ay.s.scrolltop == "s") this.s(Ay.offsets.l(o)); //smart scroll -> lookup and restore offset
else Ay.s.scrolltop && this.s(0); //scrolltop true -> scroll to top of page
}
s(o){ if(Ay.s.scrollDelay === false) window.scrollTo(0, o); //scroll to offset
else setTimeout(() => window.scrollTo(0, o), Ay.s.scrollDelay);
}
}
// The HAPi class
// operates on Ay.currentURL - manages operations on the History API centrally(replaceState / pushState)
class HApi {
r(h){ let c = this.u(h); history.replaceState({ url: c }, "state-" + c, c); } //perform replaceState
p(h){ let c = this.u(h); if (c !== window.location.href) history.pushState({ url: c }, "state-" + c, c); } //perform pushState
u(h){ if(h) Ay.currentURL = h; return Ay.currentURL; } //update currentURL if given and return always
}
// The AddAll class
// Works on a new selection of scripts to apply delta-loading to it
class AddAll { constructor() { this.CSS = []; this.JS = []; }
a(sl, pk) { //only public function
if(!sl.length || Ay.s.deltas === "n") return; //ensure input and that delta-loading is enabled
this.PK = pk; //Copy "primary key" into internal variable
if(!Ay.s.deltas) return sl.forEach(e => this.iScript(e)); //process all scripts and return quickly
//deltas presumed to be "true" -> proceed with normal delta-loading
this.O = pk == "href" ? this.CSS : this.JS; //Load old stylesheets or JS
sl.forEach(t => { //Iterate through selection
let url = this.gA(t); //fetch URL
if(!Ay.pass) return url && this.O.push(url); //Fill new array on initial load, nothing more
if(t.getAttribute("data-class") == "always" || Ay.h.alwayshints.find(url)) { //Class always handling
this.removeScript(); //remove from DOM
this.iScript(t); //insert back single external script in the head
return;
}
if(url) { //URL?
if(!this.O.some(e => e == url)) { // Test, whether new
this.O.push(url); //If yes: Push to old array
this.iScript(t);
}
//Otherwise nothing to do
return;
}
if(pk != "href" && !t.classList.contains("no-ajaxy")) Ay.scripts.i(t); //Inline JS script? -> inject into DOM
});
}
gA(e){ return this.u = e.getAttribute(this.PK) }
iScript(S){
this.gA(S);
if(this.PK == "href") return qha(Ay.parse('<link rel="stylesheet" href="*" />'.replace("*", this.u)));
if(!this.u) return Ay.scripts.i(S);
var sc = dcE("script");
sc.async = Ay.s.asyncdef;
_copyAttributes(sc, S);
qha(sc);
}
removeScript(){ qa((this.PK == "href" ? 'link[href*="!"]' : 'script[src*="!"]').replace("!", this.u)).forEach(e => prC(e)) }
}
// The Scrpts class - works on complex S object, which is initialised in "DetScripts"
class Scrpts { constructor(){ this.S = {} }
s(){ this.allstyle(this.S.y) } //all style tags
o(){ this.d(); this.a() } //on initial load
c(){ return Ay.s.canonical && this.S.can ? this.S.can.getAttribute("href") : false } //canonical href
d(){ return Ay.detScripts.d(this.S) } //detach scripts - returning true indicates an error
i(o){ this.one(o) } //inline script -> o is scripts object
t(){ this.d() || this.a() } //former "true" / default method - detach and delta load
a(){ this.delta(this.S) } //delta loading core
allstyle(S){
!Ay.s.style || !S || (
qa("style", qs("head")).forEach(e => prC(e)),
S.forEach(el => {
let st = Ay.parse('<style>' + el.textContent + '</style>');
_copyAttributes(st, el);
qha(st); //append to the head
})
)
}
one(S){
(!(this.x = S.textContent).iO("new Ajaxify(") &&
((Ay.s.inline && !Ay.h.inlineskip.find(this.x)) || S.classList.contains("ajaxy") ||
Ay.h.inlinehints.find(this.x))
) && this.add(S)
}
add(S){
if(!this.x || !this.x.length) return;
if(Ay.s.inlineappend || (S.getAttribute("type") && !S.getAttribute("type").iO("text/javascript"))) try { return this.app(S); } catch (e) { }
try { eval(this.x) } catch (e1) {
lg("Error in inline script : " + this.x + "\nError code : " + e1);
}
}
app(S){ let sc = dcE("script"); _copyAttributes(sc, S); sc.classList.add(inlineclass);
try {sc.appendChild(document.createTextNode(this.x))} catch(e) {sc.text = this.x}
return qs("body").appendChild(sc);
}
delta(S){ Ay.addAll.a(S.c, "href"), Ay.addAll.a(S.j, "src") }
}
Copyright 2005-2022, Arvind Gupta. All rights reserved.
Latest update: 2. November 2022
Privacy policy
License
About
