Element: 'fix' mousewheel event before modifying it
In strict mode (in recent browsers), modifying deltaX on a WheelEvent throws an exception: Uncaught TypeError: Cannot set property deltaX of #<WheelEvent> which has only a getter In non-strict mode or older browsers, assigning to deltaX is just a no-op. https://github.com/jquery/jquery-mousewheel/blob/master/jquery.mousewheel.js is cited in this function; it uses $.event.fix() to make a mutable jQuery.Event-flavoured copy of the native event before modifying its properties. Let's do the same. Fixes #2751
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@ -304,7 +304,7 @@
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if (!self._deltaFactor || self._deltaFactor > absDelta) {
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if (!self._deltaFactor || self._deltaFactor > absDelta) {
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self._deltaFactor = absDelta;
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self._deltaFactor = absDelta;
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}
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}
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that.triggerEvent('mousewheel', Ox.extend(e, {
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that.triggerEvent('mousewheel', Ox.extend($.event.fix(e), {
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deltaFactor: self._deltaFactor,
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deltaFactor: self._deltaFactor,
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deltaX: Ox.trunc(deltaX / self._deltaFactor),
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deltaX: Ox.trunc(deltaX / self._deltaFactor),
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deltaY: Ox.trunc(deltaY / self._deltaFactor)
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deltaY: Ox.trunc(deltaY / self._deltaFactor)
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