mirror of
https://github.com/discourse/discourse.git
synced 2024-11-28 01:33:45 +08:00
78 lines
2.9 KiB
JavaScript
78 lines
2.9 KiB
JavaScript
//browser-update.org notification script, <browser-update.org>
|
|
//Copyright (c) 2007-2009, MIT Style License <browser-update.org/LICENSE.txt>
|
|
|
|
/* eslint-disable no-var */
|
|
|
|
(function () {
|
|
var $buo = function () {
|
|
// Sometimes we have to resort to parsing the user agent string. :(
|
|
if (navigator && navigator.userAgent) {
|
|
var ua = navigator.userAgent;
|
|
|
|
// we don't ask Googlebot to update their browser
|
|
if (
|
|
ua.indexOf("Googlebot") >= 0 ||
|
|
ua.indexOf("Mediapartners") >= 0 ||
|
|
ua.indexOf("AdsBot") >= 0
|
|
) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (!window.unsupportedBrowser) {
|
|
return;
|
|
}
|
|
|
|
document.getElementsByTagName("body")[0].className += " crawler";
|
|
var mainElement = document.getElementById("main");
|
|
var noscriptElements = document.getElementsByTagName("noscript");
|
|
// find the element with the "data-path" attribute set
|
|
for (var i = 0; i < noscriptElements.length; ++i) {
|
|
if (noscriptElements[i].getAttribute("data-path")) {
|
|
// noscriptElements[i].innerHTML contains encoded HTML
|
|
if (noscriptElements[i].childNodes.length > 0) {
|
|
mainElement.innerHTML = noscriptElements[i].childNodes[0].nodeValue;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// retrieve localized browser upgrade text
|
|
var t = I18n.t("browser_update"); // eslint-disable-line no-undef
|
|
if (t.indexOf(".browser_update]") !== -1) {
|
|
// very old browsers might fail to load even translations
|
|
t =
|
|
'Unfortunately, <a href="https://www.discourse.org/faq/#browser">your browser is too old to work on this site</a>. Please <a href="https://browsehappy.com">upgrade your browser</a> to view rich content, log in and reply.';
|
|
}
|
|
|
|
// create the notification div HTML
|
|
var div = document.createElement("div");
|
|
div.className = "buorg";
|
|
div.innerHTML = "<div>" + t + "</div>";
|
|
|
|
// create the notification div stylesheet
|
|
var sheet = document.createElement("style");
|
|
var style =
|
|
".buorg {position:absolute; z-index:111111; width:100%; top:0px; left:0px; background:#FDF2AB; text-align:left; font-family: sans-serif; color:#000; font-size: 14px;} .buorg div {padding: 8px;} .buorg a, .buorg a:visited {color:#E25600; text-decoration: underline;} @media print { .buorg { display: none !important; } }";
|
|
|
|
// insert the div and stylesheet into the DOM
|
|
document.body.appendChild(div); // put it last in the DOM so Googlebot doesn't include it in search excerpts
|
|
document.getElementsByTagName("head")[0].appendChild(sheet);
|
|
try {
|
|
sheet.innerText = style;
|
|
sheet.innerHTML = style;
|
|
} catch (e) {
|
|
try {
|
|
sheet.styleSheet.cssText = style;
|
|
} catch (ex) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
// shift the body down to make room for our notification div
|
|
document.body.style.marginTop = div.clientHeight + "px";
|
|
};
|
|
|
|
$bu = $buo(); // eslint-disable-line no-undef
|
|
})(this);
|