65 lines
2.2 KiB
Plaintext
65 lines
2.2 KiB
Plaintext
//browser-update.org notification script, <browser-update.org>
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//Copyright (c) 2007-2009, MIT Style License <browser-update.org/LICENSE.txt>
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(function() {
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var $buo = function() {
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var badAndroid = false, ua = null;
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// Sometimes we have to resort to parsing the user agent string. :(
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if (navigator && navigator.userAgent) {
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ua = navigator.userAgent;
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}
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if (ua && (ua.indexOf('Android 2.2') >= 0 || ua.indexOf('Android 2.3') >= 0)) {
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// Android 2.2 and 2.3 browsers report that they have pushState, but they don't really.
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// See http://caniuse.com/#search=pushstate
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badAndroid = true;
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}
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// sam: my main concern here is mobile, but its an outlier, for now we support ie9, set conditionally and stuff with pushState
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if (window.ie === "new" || (window.history && window.history.pushState && !badAndroid)) {
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return;
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}
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// we don't ask Googlebot to update their browser
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if (ua.indexOf('Googlebot') >= 0 || ua.indexOf('Mediapartners') >= 0 || ua.indexOf('AdsBot') >= 0) {
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return;
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}
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// retrieve localized browser upgrade text
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var t = <%= "'" + I18n.t('js.browser_update') + "'" %>;
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// create the notification div HTML
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var div = document.createElement("div");
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div.className = "buorg";
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div.innerHTML = "<div>" + t + "</div>";
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// create the notification div stylesheet
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var sheet = document.createElement("style");
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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;}";
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// insert the div and stylesheet into the DOM
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document.body.appendChild(div); // put it last in the DOM so Googlebot doesn't include it in search excerpts
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document.getElementsByTagName("head")[0].appendChild(sheet);
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try {
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sheet.innerText = style;
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sheet.innerHTML = style;
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}
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catch(e) {
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try {
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sheet.styleSheet.cssText = style;
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}
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catch(ex) {
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return;
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}
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}
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// shift the body down to make room for our notification div
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document.body.style.marginTop = (div.clientHeight) + "px";
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};
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$bu=$buo();
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})(this); |