/*!
 * in-view 0.6.1 - Get notified when a DOM element enters or exits the viewport.
 * Copyright (c) 2016 Cam Wiegert <cam@camwiegert.com> - https://camwiegert.github.io/in-view
 * License: MIT
 */
!function (t, e) { "object" == typeof exports && "object" == typeof module ? module.exports = e() : "function" == typeof define && define.amd ? define([], e) : "object" == typeof exports ? exports.inView = e() : t.inView = e() }(this, function () { return function (t) { function e(r) { if (n[r]) return n[r].exports; var i = n[r] = { exports: {}, id: r, loaded: !1 }; return t[r].call(i.exports, i, i.exports, e), i.loaded = !0, i.exports } var n = {}; return e.m = t, e.c = n, e.p = "", e(0) }([function (t, e, n) { "use strict"; function r(t) { return t && t.__esModule ? t : { "default": t } } var i = n(2), o = r(i); t.exports = o["default"] }, function (t, e) { function n(t) { var e = typeof t; return null != t && ("object" == e || "function" == e) } t.exports = n }, function (t, e, n) { "use strict"; function r(t) { return t && t.__esModule ? t : { "default": t } } Object.defineProperty(e, "__esModule", { value: !0 }); var i = n(9), o = r(i), u = n(3), f = r(u), s = n(4), c = function () { if ("undefined" != typeof window) { var t = 100, e = ["scroll", "resize", "load"], n = { history: [] }, r = { offset: {}, threshold: 0, test: s.inViewport }, i = (0, o["default"])(function () { n.history.forEach(function (t) { n[t].check() }) }, t); e.forEach(function (t) { return addEventListener(t, i) }), window.MutationObserver && addEventListener("DOMContentLoaded", function () { new MutationObserver(i).observe(document.body, { attributes: !0, childList: !0, subtree: !0 }) }); var u = function (t) { if ("string" == typeof t) { var e = [].slice.call(document.querySelectorAll(t)); return n.history.indexOf(t) > -1 ? n[t].elements = e : (n[t] = (0, f["default"])(e, r), n.history.push(t)), n[t] } }; return u.offset = function (t) { if (void 0 === t) return r.offset; var e = function (t) { return "number" == typeof t }; return ["top", "right", "bottom", "left"].forEach(e(t) ? function (e) { return r.offset[e] = t } : function (n) { return e(t[n]) ? r.offset[n] = t[n] : null }), r.offset }, u.threshold = function (t) { return "number" == typeof t && t >= 0 && t <= 1 ? r.threshold = t : r.threshold }, u.test = function (t) { return "function" == typeof t ? r.test = t : r.test }, u.is = function (t) { return r.test(t, r) }, u.offset(0), u } }; e["default"] = c() }, function (t, e) { "use strict"; function n(t, e) { if (!(t instanceof e)) throw new TypeError("Cannot call a class as a function") } Object.defineProperty(e, "__esModule", { value: !0 }); var r = function () { function t(t, e) { for (var n = 0; n < e.length; n++) { var r = e[n]; r.enumerable = r.enumerable || !1, r.configurable = !0, "value" in r && (r.writable = !0), Object.defineProperty(t, r.key, r) } } return function (e, n, r) { return n && t(e.prototype, n), r && t(e, r), e } }(), i = function () { function t(e, r) { n(this, t), this.options = r, this.elements = e, this.current = [], this.handlers = { enter: [], exit: [] }, this.singles = { enter: [], exit: [] } } return r(t, [{ key: "check", value: function () { var t = this; return this.elements.forEach(function (e) { var n = t.options.test(e, t.options), r = t.current.indexOf(e), i = r > -1, o = n && !i, u = !n && i; o && (t.current.push(e), t.emit("enter", e)), u && (t.current.splice(r, 1), t.emit("exit", e)) }), this } }, { key: "on", value: function (t, e) { return this.handlers[t].push(e), this } }, { key: "once", value: function (t, e) { return this.singles[t].unshift(e), this } }, { key: "emit", value: function (t, e) { for (; this.singles[t].length;)this.singles[t].pop()(e); for (var n = this.handlers[t].length; --n > -1;)this.handlers[t][n](e); return this } }]), t }(); e["default"] = function (t, e) { return new i(t, e) } }, function (t, e) { "use strict"; function n(t, e) { var n = t.getBoundingClientRect(), r = n.top, i = n.right, o = n.bottom, u = n.left, f = n.width, s = n.height, c = { t: o, r: window.innerWidth - u, b: window.innerHeight - r, l: i }, a = { x: e.threshold * f, y: e.threshold * s }; return c.t > e.offset.top + a.y && c.r > e.offset.right + a.x && c.b > e.offset.bottom + a.y && c.l > e.offset.left + a.x } Object.defineProperty(e, "__esModule", { value: !0 }), e.inViewport = n }, function (t, e) { (function (e) { var n = "object" == typeof e && e && e.Object === Object && e; t.exports = n }).call(e, function () { return this }()) }, function (t, e, n) { var r = n(5), i = "object" == typeof self && self && self.Object === Object && self, o = r || i || Function("return this")(); t.exports = o }, function (t, e, n) { function r(t, e, n) { function r(e) { var n = x, r = m; return x = m = void 0, E = e, w = t.apply(r, n) } function a(t) { return E = t, j = setTimeout(h, e), M ? r(t) : w } function l(t) { var n = t - O, r = t - E, i = e - n; return _ ? c(i, g - r) : i } function d(t) { var n = t - O, r = t - E; return void 0 === O || n >= e || n < 0 || _ && r >= g } function h() { var t = o(); return d(t) ? p(t) : void (j = setTimeout(h, l(t))) } function p(t) { return j = void 0, T && x ? r(t) : (x = m = void 0, w) } function v() { void 0 !== j && clearTimeout(j), E = 0, x = O = m = j = void 0 } function y() { return void 0 === j ? w : p(o()) } function b() { var t = o(), n = d(t); if (x = arguments, m = this, O = t, n) { if (void 0 === j) return a(O); if (_) return j = setTimeout(h, e), r(O) } return void 0 === j && (j = setTimeout(h, e)), w } var x, m, g, w, j, O, E = 0, M = !1, _ = !1, T = !0; if ("function" != typeof t) throw new TypeError(f); return e = u(e) || 0, i(n) && (M = !!n.leading, _ = "maxWait" in n, g = _ ? s(u(n.maxWait) || 0, e) : g, T = "trailing" in n ? !!n.trailing : T), b.cancel = v, b.flush = y, b } var i = n(1), o = n(8), u = n(10), f = "Expected a function", s = Math.max, c = Math.min; t.exports = r }, function (t, e, n) { var r = n(6), i = function () { return r.Date.now() }; t.exports = i }, function (t, e, n) { function r(t, e, n) { var r = !0, f = !0; if ("function" != typeof t) throw new TypeError(u); return o(n) && (r = "leading" in n ? !!n.leading : r, f = "trailing" in n ? !!n.trailing : f), i(t, e, { leading: r, maxWait: e, trailing: f }) } var i = n(7), o = n(1), u = "Expected a function"; t.exports = r }, function (t, e) { function n(t) { return t } t.exports = n }]) });