Forked from eirikbacker/addEventListener-polyfill.js
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February 12, 2016 17:35
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addEventListener polyfill for IE6+
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//addEventListener polyfill 1.0 / Eirik Backer / MIT Licence | |
(function(win, doc){ | |
if(win.addEventListener)return; //No need to polyfill | |
function docHijack(p){var old = doc[p];doc[p] = function(v){return addListen(old(v))}} | |
function addEvent(on, fn, self){ | |
return (self = this).attachEvent('on' + on, function(e){ | |
var e = e || win.event; | |
e.preventDefault = e.preventDefault || function(){e.returnValue = false} | |
e.stopPropagation = e.stopPropagation || function(){e.cancelBubble = true} | |
fn.call(self, e); | |
}); | |
} | |
function addListen(obj, i){ | |
if(i = obj.length)while(i--)obj[i].addEventListener = addEvent; | |
else obj.addEventListener = addEvent; | |
return obj; | |
} | |
addListen([doc, win]); | |
if('Element' in win)win.Element.prototype.addEventListener = addEvent; //IE8 | |
else{ //IE < 8 | |
doc.attachEvent('onreadystatechange', function(){addListen(doc.all)}); //Make sure we also init at domReady | |
docHijack('getElementsByTagName'); | |
docHijack('getElementById'); | |
docHijack('createElement'); | |
addListen(doc.all); | |
} | |
})(window, document); |
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