الخوارزميات تحدّد رؤيتنا للعالم .. رسائل قوية في ندوة «حروب الشاشات» بمعرض مكتبة الإسكندرية|صور

replaceOembeds();
function replaceOembeds() {
var allEmbeds = document.getElementsByTagName(“OEMBED”);
while (allEmbeds.length != 0) {
replaceOembedWithHtml(allEmbeds[0], extractLinkFromOembed(allEmbeds[0]));
allEmbeds = document.getElementsByTagName(“OEMBED”);
}
runYoutubeLazyLoad();
setTimeout(function () {
loadfbApi();
}, 4000);
}

function replaceOembedWithHtml(element, sourceData) {
if (sourceData.source.toLowerCase() === “youtube”) {
var html=”

‘;
replaceElementWithHtml(element, html);
} else if (sourceData.source.toLowerCase() === “instagram”) {
var html=”

‘;
replaceElementWithHtml(element, html);
} else if (sourceData.source.toLowerCase() === “twitter”) {
var html=”

‘;
replaceElementWithHtml(element, html);
} else if (sourceData.source.toLowerCase() === “facebook”) {
var html=”

‘
replaceElementWithHtml(element, html);
} else {
replaceElementWithHtml(element, “”);
}
}

function extractLinkFromOembed(element) {
return getUrlSource(element.getAttribute(“url”));
}

function getUrlSource(url) {
var ytRegex = /http(?:s?):\/\/(?:www\.)?youtu(?:be\.com\/watch\?v=|\.be\/)([\w\-\_]*)(&(amp;)?‌​[\w\?‌​=]*)?/;
var instaRegex = /(https?:\/\/www\.)?instagram\.com(\/p\/(\w+)\/?)/;
var twitterRegex = /twitter\.com\/.*\/status(?:es)?\/([^\/\?]+)/;
var fbRegex = /^https?:\/\/www\.facebook\.com.*\/(video(s)?|watch|story|posts)(\.php?|\/).+$/;

if (ytRegex.test(url)) {
return {
source: “Youtube”,
url: url,
id: ytRegex.exec(url)[1] };
}

if (instaRegex.test(url)) {
return {
source: “Instagram”,
url: url,
id: instaRegex.exec(url)[3] };
}

if (twitterRegex.test(url)) {
return {
source: “Twitter”,
url: url,
id: twitterRegex.exec(url)[1] };
}

if (fbRegex.test(url)) {
return {
source: “Facebook”,
url: url,
id: fbRegex.exec(url)[1] };

}

return {
source: “Unknown”,
url: url,
id: “”
};
}

function replaceElementWithHtml(element, html) {
var str = html;
var Obj = element; //any element to be fully replaced
if (Obj.outerHTML) { //if outerHTML is supported
Obj.outerHTML = str; ///it’s simple replacement of whole element with contents of str var
} else { //if outerHTML is not supported, there is a weird but crossbrowsered trick
var tmpObj = document.createElement(“div”);
tmpObj.innerHTML = ‘‘;
ObjParent = Obj.parentNode; //Okey, element should be parented
ObjParent.replaceChild(tmpObj, Obj); //here we placing our temporary data instead of our target, so we can find it then and replace it into whatever we want to replace to
ObjParent.innerHTML = ObjParent.innerHTML.replace(‘

‘, str);
}
}
function loadfbApi() {
var js = document.createElement(‘script’);
js.src=”https://connect.facebook.net/en_US/sdk.js#xfbml=1&version=v3.2″;
document.body.appendChild(js);
}
function runYoutubeLazyLoad() {
/// youtube lazyload
var youtube = document.querySelectorAll(“.youtube”);

for (var i = 0; i < youtube.length; i++) {

var source = "https://img.youtube.com/vi/" + youtube[i].dataset.embed +
"/0.jpg";

var image = new Image();
image.src = "https://www.elbalad.news/themes/elbalad/assets/images/no.jpg";
image.classList.add('lazyload');
image.setAttribute("data-src", source);
image.setAttribute("alt", "youtube");
image.addEventListener("load", function () {
youtube[i].appendChild(image);
}(i));

youtube[i].addEventListener("click", function () {
var iframe = document.createElement("iframe");
iframe.setAttribute("frameborder", "0");
iframe.setAttribute("allowfullscreen", "");
iframe.setAttribute("src", "https://www.youtube.com/embed/" + this.dataset
.embed + "?rel=0&showinfo=0&autoplay=1");
this.innerHTML = "";
this.appendChild(iframe);
});
};
}

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