!(function (e) {
(e.fn.appear = function (a, r) {
var p = e.extend({ data: void 0, one: !0, accX: 0, accY: 0 }, r);
return this.each(function () {
var r = e(this);
if (((r.appeared = !1), a)) {
var n = e(window),
t = function () {
if (r.is(":visible")) {
var e = n.scrollLeft(),
a = n.scrollTop(),
t = r.offset(),
c = t.left,
i = t.top,
o = p.accX,
f = p.accY,
s = r.height(),
l = n.height(),
h = r.width(),
d = n.width();
i + s + f >= a &&
i <= a + l + f &&
c + h + o >= e &&
c <= e + d + o
? r.appeared || r.trigger("appear", p.data)
: (r.appeared = !1);
} else r.appeared = !1;
},
c = function () {
if (((r.appeared = !0), p.one)) {
n.unbind("scroll", t);
var c = e.inArray(t, e.fn.appear.checks);
c >= 0 && e.fn.appear.checks.splice(c, 1);
}
a.apply(this, arguments);
};
p.one ? r.one("appear", p.data, c) : r.bind("appear", p.data, c),
n.scroll(t),
e.fn.appear.checks.push(t),
t();
} else r.trigger("appear", p.data);
});
}),
e.extend(e.fn.appear, {
checks: [],
timeout: null,
checkAll: function () {
var a = e.fn.appear.checks.length;
if (a > 0) for (; a--; ) e.fn.appear.checks[a]();
},
run: function () {
e.fn.appear.timeout && clearTimeout(e.fn.appear.timeout),
(e.fn.appear.timeout = setTimeout(e.fn.appear.checkAll, 20));
},
}),
e.each(
[
"append",
"prepend",
"after",
"before",
"attr",
"removeAttr",
"addClass",
"removeClass",
"toggleClass",
"remove",
"css",
"show",
"hide",
],
function (a, r) {
var p = e.fn[r];
p &&
(e.fn[r] = function () {
var a = p.apply(this, arguments);
return e.fn.appear.run(), a;
});
}
);
})(jQuery);