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Prevent a single event object from being fixed more than once

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Brandon Aaron 2008-04-27 23:08:31 +00:00
parent 77bb2c505f
commit b84b997ea4
1 changed files with 7 additions and 1 deletions
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8
src/event.js
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@ -268,17 +268,23 @@ jQuery.event = {
// Clean up added properties in IE to prevent memory leak // Clean up added properties in IE to prevent memory leak
if (jQuery.browser.msie) if (jQuery.browser.msie)
event.target = event.preventDefault = event.stopPropagation = event.target = event.preventDefault = event.stopPropagation =
event.handler = event.data = null; event.handler = event.data = event[expando] = null;
return val; return val;
}, },
fix: function(event) { fix: function(event) {
if ( event[expando] == true )
return event;
// store a copy of the original event object // store a copy of the original event object
// and clone to set read-only properties // and clone to set read-only properties
var originalEvent = event; var originalEvent = event;
event = jQuery.extend({}, originalEvent); event = jQuery.extend({}, originalEvent);
// Mark it as fixed
event[expando] = true;
// add preventDefault and stopPropagation since // add preventDefault and stopPropagation since
// they will not work on the clone // they will not work on the clone
event.preventDefault = function() { event.preventDefault = function() {