forked from I2P_Developers/i2p.i2p
71 lines
2.3 KiB
JavaScript
71 lines
2.3 KiB
JavaScript
/* @license http://creativecommons.org/publicdomain/zero/1.0/legalcode CC0-1.0 */
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// This component is dedicated to the public domain. It uses the CC0
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// as a formal dedication to the public domain and in circumstances where
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// a public domain is not usable.
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var fails = 0;
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/**
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*
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* @param refresh as of 0.9.58, if less than or equal to zero, do not reschedule
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*
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*/
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function ajax(url, target, refresh) {
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// native XMLHttpRequest object
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if (window.XMLHttpRequest) {
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req = new XMLHttpRequest();
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req.onreadystatechange = function() {ajaxDone(url, target, refresh);};
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req.open("GET", url, true);
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// IE https://www.jamesmaurer.com/ajax-refresh-problem-w-ie-not-refreshing.asp
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req.setRequestHeader("If-Modified-Since","Sat, 1 Jan 2000 00:00:00 GMT");
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req.send(null);
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// IE/Windows ActiveX version
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} else if (window.ActiveXObject) {
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req = new ActiveXObject("Microsoft.XMLDOM");
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if (req) {
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req.onreadystatechange = function() {ajaxDone(target);};
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req.open("GET", url, true);
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// IE https://www.jamesmaurer.com/ajax-refresh-problem-w-ie-not-refreshing.asp
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req.setRequestHeader("If-Modified-Since","Sat, 1 Jan 2000 00:00:00 GMT");
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req.send(null);
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}
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}
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}
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/**
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*
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* @param refresh as of 0.9.58, if less than or equal to zero, do not reschedule
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*
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*/
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function ajaxDone(url, target, refresh) {
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// only if req is "loaded"
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if (req.readyState == 4) {
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// only if "OK"
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if (req.status == 200) {
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fails = 0;
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results = req.responseText;
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document.getElementById(target).innerHTML = results;
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//document.getElementsbyClassName("hideifdown").style.display="block";
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} else if (fails == 0) {
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// avoid spurious message if cancelled by user action
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fails++;
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} else {
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document.getElementById(target).innerHTML = failMessage;
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//document.getElementByClassName("hideifdown").style.display="none";
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}
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// conditionally display graph so ajax call doesn't interfere with refreshGraph.js
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var graph = document.getElementById("sb_graphcontainer");
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if (graph) {
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graph.style.backgroundImage = "url(/viewstat.jsp?stat=bw.combined&periodCount=20&width=220&height=50&hideLegend=true&hideGrid=true&time=" + new Date().getTime();
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}
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if (refresh > 0) {
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setTimeout(function() {ajax(url, target, refresh);}, refresh);
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}
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}
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}
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/* @license-end */
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