https://sentradigital.com/Scripts/lazyframe.js

1
2
3// Lazyframe
4
5!function (t, e) { "object" == typeof exports && "undefined" != typeof module ? module.exports = e() : "function" == typeof define && define.amd ? define(e) : (t = "undefined" != typeof globalThis ? globalThis : t || self).lazyframe = e() }(this, (function () { "use strict"; function t() { return (t = Object.assign || function (t) { for (var e = 1; e < arguments.length; e++) { var n = arguments[e]; for (var i in n) Object.prototype.hasOwnProperty.call(n, i) && (t[i] = n[i]) } return t }).apply(this, arguments) } return function () { var e, n = [], i = { vendor: void 0, id: void 0, src: void 0, thumbnail: void 0, title: void 0, initialized: !1, y: void 0, debounce: 250, lazyload: !0, autoplay: !0, initinview: !1, onLoad: function (t) { }, onAppend: function (t) { }, onThumbnailLoad: function (t) { } }, o = { regex: { youtube_nocookie: /(?:youtube-nocookie\.com\/\S*(?:(?:\/e(?:mbed))?\/|watch\?(?:\S*?&?v\=)))([a-zA-Z0-9_-]{6,11})/, youtube: /(?:youtube\.com\/\S*(?:(?:\/e(?:mbed))?\/|watch\?(?:\S*?&?v\=))|youtu\.be\/)([a-zA-Z0-9_-]{6,11})/, vimeo: /vimeo\.com\/(?:video\/)?([0-9]*)(?:\?|)/ }, condition: { youtube: function (t) { return !(!t || 11 != t[1].length) && t[1] }, youtube_nocookie: function (t) { return !(!t || 11 != t[1].length) && t[1] }, vimeo: function (t) { return !!(t && 9 === t[1].length || 8 === t[1].length) && t[1] } }, src: { youtube: function (t) { return "https://www.youtube.com/embed/".concat(t.id, "/?autoplay=").concat(t.autoplay ? "1" : "0", "&").concat(t.query) }, youtube_nocookie: function (t) { return "https://www.youtube-nocookie.com/embed/".concat(t.id, "/?autoplay=").concat(t.autoplay ? "1" : "0", "&").concat(t.query) }, vimeo: function (t) { return "https://player.vimeo.com/video/".concat(t.id, "/?autoplay=").concat(t.autoplay ? "1" : "0", "&").concat(t.query) } }, endpoint: function (t) { return "https://noembed.com/embed?url=".concat(t.src) }, response: { title: function (t) { return t.title }, thumbnail: function (t) { return t.thumbnail_url } } }; function a(t) { var n = this; if (t instanceof HTMLElement != !1 && !t.classList.contains("lazyframe--loaded")) { var i = { el: t, settings: r(t) }; i.el.addEventListener("click", (function () { i.el.appendChild(i.iframe); var e = t.querySelectorAll("iframe"); i.settings.onAppend.call(n, e[0]) })), e.lazyload ? c(i) : l(i, i.settings.thumbnail) } } function r(n) { var i, a, r = Array.prototype.slice.apply(n.attributes).filter((function (t) { return "" !== t.value })).reduce((function (t, e) { return t[0 === e.name.indexOf("data-") ? e.name.split("data-")[1] : e.name] = e.value, t }), {}), l = t({}, e, r, { y: n.offsetTop, originalSrc: r.src, query: (i = r.src, a = i.split("?"), a[1] ? a[1] : null) }); if (l.vendor) { var u = l.src.match(o.regex[l.vendor]); l.id = o.condition[l.vendor](u) } return l } function l(t) { var e = this; !function (t) { return !(!t.vendor || t.title && t.thumbnail) }(t.settings) ? c(t, !0) : function (t, e) { var n = o.endpoint(t.settings), i = new XMLHttpRequest; i.open("GET", n, !0), i.onload = function () { if (i.status >= 200 && i.status < 400) { var n = JSON.parse(i.responseText); e(null, [n, t]) } else e(!0) }, i.onerror = function () { e(!0) }, i.send() }(t, (function (n, i) { if (!n) { var a = i[0], r = i[1]; if (r.settings.title || (r.settings.title = o.response.title(a)), !r.settings.thumbnail) { var l = o.response.thumbnail(a); r.settings.thumbnail = l, t.settings.onThumbnailLoad.call(e, l) } c(r, !0) } })) } function u() { var t = this, i = window.innerHeight, o = n.length, a = function (e, n) { e.settings.initialized = !0, e.el.classList.add("lazyframe--loaded"), o--, l(e), e.settings.initinview && e.el.click(), e.settings.onLoad.call(t, e) }; n.filter((function (t) { return t.settings.y < i })).forEach(a); var r, u, c, s, d = (r = function () { m = f < window.pageYOffset, f = window.pageYOffset, m && n.filter((function (t) { return t.settings.y < i + f && !1 === t.settings.initialized })).forEach(a), 0 === o && window.removeEventListener("scroll", d, !1) }, u = e.debounce, function () { var t = this, e = arguments, n = function () { s = null, c || r.apply(t, e) }, i = c && !s; clearTimeout(s), s = setTimeout(n, u), i && r.apply(t, e) }), f = 0, m = !1; window.addEventListener("scroll", d, !1) } function c(t, i) { if (t.iframe = function (t) { var e = document.createDocumentFragment(), n = document.createElement("iframe");