fix: function(event) { if (event[expando] == true) return event; // store a copy of the original event object // and "clone" to set read-only properties var originalEvent = event; event = { originalEvent: originalEvent }; var props = "altKey attrChange attrName bubbles button cancelable charCode clientX clientY ctrlKey currentTarget data detail eventPhase fromElement handler keyCode metaKey newValue originalTarget pageX pageY prevValue relatedNode relatedTarget screenX screenY shiftKey srcElement target timeStamp toElement type view wheelDelta which".split(" "); for (var i = props.length; i; i--) event[props[i]] = originalEvent[props[i]]; // Mark it as fixed event[expando] = true; // add preventDefault and stopPropagation since // they will not work on the clone event.preventDefault = function() { // if preventDefault exists run it on the original event if (originalEvent.preventDefault) originalEvent.preventDefault(); // otherwise set the returnValue property of the original event to false (IE) originalEvent.returnValue = false; }; event.stopPropagation = function() { // if stopPropagation exists run it on the original event if (originalEvent.stopPropagation) originalEvent.stopPropagation(); // otherwise set the cancelBubble property of the original event to true (IE) originalEvent.cancelBubble = true; }; // Fix timeStamp event.timeStamp = event.timeStamp || now(); // Fix target property, if necessary if (!event.target) event.target = event.srcElement || document; // Fixes #1925 where srcElement might not be defined either // check if target is a textnode (safari) if (event.target.nodeType == 3) event.target = event.target.parentNode; // Add relatedTarget, if necessary if (!event.relatedTarget && event.fromElement) event.relatedTarget = event.fromElement == event.target ? event.toElement : event.fromElement; // Calculate pageX/Y if missing and clientX/Y available if (event.pageX == null && event.clientX != null) { var doc = document.documentElement, body = document.body; event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc.clientLeft || 0); event.pageY = event.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc.clientTop || 0); } // Add which for key events if (!event.which && ((event.charCode || event.charCode === 0) ? event.charCode : event.keyCode)) event.which = event.charCode || event.keyCode; // Add metaKey to non-Mac browsers (use ctrl for PC's and Meta for Macs) if (!event.metaKey && event.ctrlKey) event.metaKey = event.ctrlKey; // Add which for click: 1 == left; 2 == middle; 3 == right // Note: button is not normalized, so don't use it if (!event.which && event.button) event.which = (event.button & 1 ? 1 : (event.button & 2 ? 3 : (event.button & 4 ? 2 : 0))); return event; }
