File: /var/www/zaklada/html/lib/js/vendor/lazyload.min.js
/*! lazysizes - v5.2.2 */
!(function (e) {
var t = (function (u, D, f) {
"use strict";
var k, H;
if (
((function () {
var e;
var t = {
lazyClass: "lazyload",
loadedClass: "lazyloaded",
loadingClass: "lazyloading",
preloadClass: "lazypreload",
errorClass: "lazyerror",
autosizesClass: "lazyautosizes",
srcAttr: "data-src",
srcsetAttr: "data-srcset",
sizesAttr: "data-sizes",
minSize: 40,
customMedia: {},
init: true,
expFactor: 1.5,
hFac: 0.8,
loadMode: 2,
loadHidden: true,
ricTimeout: 0,
throttleDelay: 125,
};
H = u.lazySizesConfig || u.lazysizesConfig || {};
for (e in t) {
if (!(e in H)) {
H[e] = t[e];
}
}
})(),
!D || !D.getElementsByClassName)
) {
return { init: function () {}, cfg: H, noSupport: true };
}
var O = D.documentElement,
a = u.HTMLPictureElement,
P = "addEventListener",
$ = "getAttribute",
q = u[P].bind(u),
I = u.setTimeout,
U = u.requestAnimationFrame || I,
l = u.requestIdleCallback,
j = /^picture$/i,
r = ["load", "error", "lazyincluded", "_lazyloaded"],
i = {},
G = Array.prototype.forEach,
J = function (e, t) {
if (!i[t]) {
i[t] = new RegExp("(\\s|^)" + t + "(\\s|$)");
}
return i[t].test(e[$]("class") || "") && i[t];
},
K = function (e, t) {
if (!J(e, t)) {
e.setAttribute("class", (e[$]("class") || "").trim() + " " + t);
}
},
Q = function (e, t) {
var i;
if ((i = J(e, t))) {
e.setAttribute("class", (e[$]("class") || "").replace(i, " "));
}
},
V = function (t, i, e) {
var a = e ? P : "removeEventListener";
if (e) {
V(t, i);
}
r.forEach(function (e) {
t[a](e, i);
});
},
X = function (e, t, i, a, r) {
var n = D.createEvent("Event");
if (!i) {
i = {};
}
i.instance = k;
n.initEvent(t, !a, !r);
n.detail = i;
e.dispatchEvent(n);
return n;
},
Y = function (e, t) {
var i;
if (!a && (i = u.picturefill || H.pf)) {
if (t && t.src && !e[$]("srcset")) {
e.setAttribute("srcset", t.src);
}
i({ reevaluate: true, elements: [e] });
} else if (t && t.src) {
e.src = t.src;
}
},
Z = function (e, t) {
return (getComputedStyle(e, null) || {})[t];
},
s = function (e, t, i) {
i = i || e.offsetWidth;
while (i < H.minSize && t && !e._lazysizesWidth) {
i = t.offsetWidth;
t = t.parentNode;
}
return i;
},
ee = (function () {
var i, a;
var t = [];
var r = [];
var n = t;
var s = function () {
var e = n;
n = t.length ? r : t;
i = true;
a = false;
while (e.length) {
e.shift()();
}
i = false;
};
var e = function (e, t) {
if (i && !t) {
e.apply(this, arguments);
} else {
n.push(e);
if (!a) {
a = true;
(D.hidden ? I : U)(s);
}
}
};
e._lsFlush = s;
return e;
})(),
te = function (i, e) {
return e
? function () {
ee(i);
}
: function () {
var e = this;
var t = arguments;
ee(function () {
i.apply(e, t);
});
};
},
ie = function (e) {
var i;
var a = 0;
var r = H.throttleDelay;
var n = H.ricTimeout;
var t = function () {
i = false;
a = f.now();
e();
};
var s =
l && n > 49
? function () {
l(t, { timeout: n });
if (n !== H.ricTimeout) {
n = H.ricTimeout;
}
}
: te(function () {
I(t);
}, true);
return function (e) {
var t;
if ((e = e === true)) {
n = 33;
}
if (i) {
return;
}
i = true;
t = r - (f.now() - a);
if (t < 0) {
t = 0;
}
if (e || t < 9) {
s();
} else {
I(s, t);
}
};
},
ae = function (e) {
var t, i;
var a = 99;
var r = function () {
t = null;
e();
};
var n = function () {
var e = f.now() - i;
if (e < a) {
I(n, a - e);
} else {
(l || r)(r);
}
};
return function () {
i = f.now();
if (!t) {
t = I(n, a);
}
};
},
e = (function () {
var v, m, c, h, e;
var y, z, g, p, C, b, A;
var n = /^img$/i;
var d = /^iframe$/i;
var E = "onscroll" in u && !/(gle|ing)bot/.test(navigator.userAgent);
var _ = 0;
var w = 0;
var N = 0;
var M = -1;
var x = function (e) {
N--;
if (!e || N < 0 || !e.target) {
N = 0;
}
};
var W = function (e) {
if (A == null) {
A = Z(D.body, "visibility") == "hidden";
}
return A || !(Z(e.parentNode, "visibility") == "hidden" && Z(e, "visibility") == "hidden");
};
var S = function (e, t) {
var i;
var a = e;
var r = W(e);
g -= t;
b += t;
p -= t;
C += t;
while (r && (a = a.offsetParent) && a != D.body && a != O) {
r = (Z(a, "opacity") || 1) > 0;
if (r && Z(a, "overflow") != "visible") {
i = a.getBoundingClientRect();
r = C > i.left && p < i.right && b > i.top - 1 && g < i.bottom + 1;
}
}
return r;
};
var t = function () {
var e, t, i, a, r, n, s, l, o, u, f, c;
var d = k.elements;
if ((h = H.loadMode) && N < 8 && (e = d.length)) {
t = 0;
M++;
for (; t < e; t++) {
if (!d[t] || d[t]._lazyRace) {
continue;
}
if (!E || (k.prematureUnveil && k.prematureUnveil(d[t]))) {
R(d[t]);
continue;
}
if (!(l = d[t][$]("data-expand")) || !(n = l * 1)) {
n = w;
}
if (!u) {
u = !H.expand || H.expand < 1 ? (O.clientHeight > 500 && O.clientWidth > 500 ? 500 : 370) : H.expand;
k._defEx = u;
f = u * H.expFactor;
c = H.hFac;
A = null;
if (w < f && N < 1 && M > 2 && h > 2 && !D.hidden) {
w = f;
M = 0;
} else if (h > 1 && M > 1 && N < 6) {
w = u;
} else {
w = _;
}
}
if (o !== n) {
y = innerWidth + n * c;
z = innerHeight + n;
s = n * -1;
o = n;
}
i = d[t].getBoundingClientRect();
if (
(b = i.bottom) >= s &&
(g = i.top) <= z &&
(C = i.right) >= s * c &&
(p = i.left) <= y &&
(b || C || p || g) &&
(H.loadHidden || W(d[t])) &&
((m && N < 3 && !l && (h < 3 || M < 4)) || S(d[t], n))
) {
R(d[t]);
r = true;
if (N > 9) {
break;
}
} else if (
!r &&
m &&
!a &&
N < 4 &&
M < 4 &&
h > 2 &&
(v[0] || H.preloadAfterLoad) &&
(v[0] || (!l && (b || C || p || g || d[t][$](H.sizesAttr) != "auto")))
) {
a = v[0] || d[t];
}
}
if (a && !r) {
R(a);
}
}
};
var i = ie(t);
var B = function (e) {
var t = e.target;
if (t._lazyCache) {
delete t._lazyCache;
return;
}
x(e);
K(t, H.loadedClass);
Q(t, H.loadingClass);
V(t, L);
X(t, "lazyloaded");
};
var a = te(B);
var L = function (e) {
a({ target: e.target });
};
var T = function (t, i) {
try {
t.contentWindow.location.replace(i);
} catch (e) {
t.src = i;
}
};
var F = function (e) {
var t;
var i = e[$](H.srcsetAttr);
if ((t = H.customMedia[e[$]("data-media") || e[$]("media")])) {
e.setAttribute("media", t);
}
if (i) {
e.setAttribute("srcset", i);
}
};
var s = te(function (t, e, i, a, r) {
var n, s, l, o, u, f;
if (!(u = X(t, "lazybeforeunveil", e)).defaultPrevented) {
if (a) {
if (i) {
K(t, H.autosizesClass);
} else {
t.setAttribute("sizes", a);
}
}
s = t[$](H.srcsetAttr);
n = t[$](H.srcAttr);
if (r) {
l = t.parentNode;
o = l && j.test(l.nodeName || "");
}
f = e.firesLoad || ("src" in t && (s || n || o));
u = { target: t };
K(t, H.loadingClass);
if (f) {
clearTimeout(c);
c = I(x, 2500);
V(t, L, true);
}
if (o) {
G.call(l.getElementsByTagName("source"), F);
}
if (s) {
t.setAttribute("srcset", s);
} else if (n && !o) {
if (d.test(t.nodeName)) {
T(t, n);
} else {
t.src = n;
}
}
if (r && (s || o)) {
Y(t, { src: n });
}
}
if (t._lazyRace) {
delete t._lazyRace;
}
Q(t, H.lazyClass);
ee(function () {
var e = t.complete && t.naturalWidth > 1;
if (!f || e) {
if (e) {
K(t, "ls-is-cached");
}
B(u);
t._lazyCache = true;
I(function () {
if ("_lazyCache" in t) {
delete t._lazyCache;
}
}, 9);
}
if (t.loading == "lazy") {
N--;
}
}, true);
});
var R = function (e) {
if (e._lazyRace) {
return;
}
var t;
var i = n.test(e.nodeName);
var a = i && (e[$](H.sizesAttr) || e[$]("sizes"));
var r = a == "auto";
if ((r || !m) && i && (e[$]("src") || e.srcset) && !e.complete && !J(e, H.errorClass) && J(e, H.lazyClass)) {
return;
}
t = X(e, "lazyunveilread").detail;
if (r) {
re.updateElem(e, true, e.offsetWidth);
}
e._lazyRace = true;
N++;
s(e, t, r, a, i);
};
var r = ae(function () {
H.loadMode = 3;
i();
});
var l = function () {
if (H.loadMode == 3) {
H.loadMode = 2;
}
r();
};
var o = function () {
if (m) {
return;
}
if (f.now() - e < 999) {
I(o, 999);
return;
}
m = true;
H.loadMode = 3;
i();
q("scroll", l, true);
};
return {
_: function () {
e = f.now();
k.elements = D.getElementsByClassName(H.lazyClass);
v = D.getElementsByClassName(H.lazyClass + " " + H.preloadClass);
q("scroll", i, true);
q("resize", i, true);
q("pageshow", function (e) {
if (e.persisted) {
var t = D.querySelectorAll("." + H.loadingClass);
if (t.length && t.forEach) {
U(function () {
t.forEach(function (e) {
if (e.complete) {
R(e);
}
});
});
}
}
});
if (u.MutationObserver) {
new MutationObserver(i).observe(O, { childList: true, subtree: true, attributes: true });
} else {
O[P]("DOMNodeInserted", i, true);
O[P]("DOMAttrModified", i, true);
setInterval(i, 999);
}
q("hashchange", i, true);
["focus", "mouseover", "click", "load", "transitionend", "animationend"].forEach(function (e) {
D[P](e, i, true);
});
if (/d$|^c/.test(D.readyState)) {
o();
} else {
q("load", o);
D[P]("DOMContentLoaded", i);
I(o, 2e4);
}
if (k.elements.length) {
t();
ee._lsFlush();
} else {
i();
}
},
checkElems: i,
unveil: R,
_aLSL: l,
};
})(),
re = (function () {
var i;
var n = te(function (e, t, i, a) {
var r, n, s;
e._lazysizesWidth = a;
a += "px";
e.setAttribute("sizes", a);
if (j.test(t.nodeName || "")) {
r = t.getElementsByTagName("source");
for (n = 0, s = r.length; n < s; n++) {
r[n].setAttribute("sizes", a);
}
}
if (!i.detail.dataAttr) {
Y(e, i.detail);
}
});
var a = function (e, t, i) {
var a;
var r = e.parentNode;
if (r) {
i = s(e, r, i);
a = X(e, "lazybeforesizes", { width: i, dataAttr: !!t });
if (!a.defaultPrevented) {
i = a.detail.width;
if (i && i !== e._lazysizesWidth) {
n(e, r, a, i);
}
}
}
};
var e = function () {
var e;
var t = i.length;
if (t) {
e = 0;
for (; e < t; e++) {
a(i[e]);
}
}
};
var t = ae(e);
return {
_: function () {
i = D.getElementsByClassName(H.autosizesClass);
q("resize", t);
},
checkElems: t,
updateElem: a,
};
})(),
t = function () {
if (!t.i && D.getElementsByClassName) {
t.i = true;
re._();
e._();
}
};
return (
I(function () {
H.init && t();
}),
(k = { cfg: H, autoSizer: re, loader: e, init: t, uP: Y, aC: K, rC: Q, hC: J, fire: X, gW: s, rAF: ee })
);
})(e, e.document, Date);
(e.lazySizes = t), "object" == typeof module && module.exports && (module.exports = t);
})("undefined" != typeof window ? window : {});