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YUI.add('event-mousewheel', function (Y, NAME) {
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/**
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 * Adds mousewheel event support
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 * @module event
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 * @submodule event-mousewheel
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 */
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var DOM_MOUSE_SCROLL = 'DOMMouseScroll',
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    fixArgs = function(args) {
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        var a = Y.Array(args, 0, true), target;
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        if (Y.UA.gecko) {
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            a[0] = DOM_MOUSE_SCROLL;
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            target = Y.config.win;
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        } else {
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            target = Y.config.doc;
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        }
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        if (a.length < 3) {
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            a[2] = target;
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        } else {
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            a.splice(2, 0, target);
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        }
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        return a;
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    };
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/**
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 * Mousewheel event.  This listener is automatically attached to the
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 * correct target, so one should not be supplied.  Mouse wheel
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 * direction and velocity is stored in the 'wheelDelta' field.
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 * @event mousewheel
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 * @param type {string} 'mousewheel'
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 * @param fn {function} the callback to execute
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 * @param context optional context object
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 * @param args 0..n additional arguments to provide to the listener.
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 * @return {EventHandle} the detach handle
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 * @for YUI
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 */
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Y.Env.evt.plugins.mousewheel = {
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    on: function() {
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        return Y.Event._attach(fixArgs(arguments));
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    },
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    detach: function() {
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        return Y.Event.detach.apply(Y.Event, fixArgs(arguments));
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    }
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};
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}, '3.18.1', {"requires": ["node-base"]});