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<script src="https://code.jquery.com/jquery-2.1.3.min.js"></script>
<script>
(function ($) {
// http://bitovi.com/blog/2012/04/faster-jquery-event-fix.html
// https://gist.github.com/2377196
// IE 8 has Object.defineProperty but it only defines DOM Nodes. According to
// http://kangax.github.com/es5-compat-table/#define-property-ie-note
// All browser that have Object.defineProperties also support Object.defineProperty properly
if (Object.defineProperties) {
var
// Use defineProperty on an object to set the value and return it
set = function (obj, prop, val) {
if (val !== undefined) {
Object.defineProperty(obj, prop, {
value: val
});
}
return val;
},
// special converters
special = {
pageX: function (original) {
if (!original) {
return;
}
var eventDoc = this.target.ownerDocument || document,
doc = eventDoc.documentElement,
body = eventDoc.body;
return original.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc && doc.clientLeft || body && body.clientLeft || 0);
},
pageY: function (original) {
if (!original) {
return;
}
var eventDoc = this.target.ownerDocument || document,
doc = eventDoc.documentElement,
body = eventDoc.body;
return original.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc && doc.clientTop || body && body.clientTop || 0);
},
relatedTarget: function (original) {
if (!original) {
return;
}
return original.fromElement === this.target ? original.toElement : original.fromElement;
},
metaKey: function (originalEvent) {
if (!originalEvent) {
return;
}
return originalEvent.ctrlKey;
},
which: function (original) {
if (!original) {
return;
}
return original.charCode != null ? original.charCode : original.keyCode;
}
};
// Get all properties that should be mapped
$.each($.event.keyHooks.props.concat($.event.mouseHooks.props).concat($.event.props), function (i, prop) {
if (prop !== "target") {
(function () {
Object.defineProperty($.Event.prototype, prop, {
get: function () {
// get the original value, undefined when there is no original event
var originalValue = this.originalEvent && this.originalEvent[prop];
// overwrite getter lookup
return this['_' + prop] !== undefined ? this['_' + prop] : set(this, prop,
// if we have a special function and no value
special[prop] && originalValue === undefined ?
// call the special function
special[prop].call(this, this.originalEvent) :
// use the original value
originalValue);
},
set: function (newValue) {
// Set the property with underscore prefix
this['_' + prop] = newValue;
}
});
})();
}
});
$.event.fastFix = function(event) {
if (event[$.expando]) {
return event;
}
// Create a jQuery event with at minimum a target and type set
var originalEvent = event;
event = $.Event(originalEvent);
event.target = originalEvent.target;
// Fix target property, if necessary (#1925, IE 6/7/8 & Safari2)
if (!event.target) {
event.target = originalEvent.srcElement || document;
}
// Target should not be a text node (#504, Safari)
if (event.target.nodeType === 3) {
event.target = event.target.parentNode;
}
return event;
};
}
return $;
})(jQuery);
var makeClick = function(){
var event;
try {
event = document.createEvent('MouseEvents');
event.initMouseEvent("click", true, true, null, null, 100, 100, 100, 100, false, false, false, false, 0, null);
} catch (e) {
try {
event = document.createEvent("Events");
} catch (e2) {
event = document.createEvent("UIEvents");
} finally {
event.initEvent("click", true, true);
}
}
//element.dispatchEvent(event)
return event;
}
</script>
Ready to run.
Test | Ops/sec | |
---|---|---|
existing fix |
| ready |
fast fix |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.