/usr/share/javascript/yui3/event-hover/event-hover.js is in libjs-yui3-full 3.5.1-1ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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YUI 3.5.1 (build 22)
Copyright 2012 Yahoo! Inc. All rights reserved.
Licensed under the BSD License.
http://yuilibrary.com/license/
*/
YUI.add('event-hover', function(Y) {
/**
* Adds support for a "hover" event. The event provides a convenience wrapper
* for subscribing separately to mouseenter and mouseleave. The signature for
* subscribing to the event is</p>
*
* <pre><code>node.on("hover", overFn, outFn);
* node.delegate("hover", overFn, outFn, ".filterSelector");
* Y.on("hover", overFn, outFn, ".targetSelector");
* Y.delegate("hover", overFn, outFn, "#container", ".filterSelector");
* </code></pre>
*
* <p>Additionally, for compatibility with a more typical subscription
* signature, the following are also supported:</p>
*
* <pre><code>Y.on("hover", overFn, ".targetSelector", outFn);
* Y.delegate("hover", overFn, "#container", outFn, ".filterSelector");
* </code></pre>
*
* @module event
* @submodule event-hover
*/
var isFunction = Y.Lang.isFunction,
noop = function () {},
conf = {
processArgs: function (args) {
// Y.delegate('hover', over, out, '#container', '.filter')
// comes in as ['hover', over, out, '#container', '.filter'], but
// node.delegate('hover', over, out, '.filter')
// comes in as ['hover', over, containerEl, out, '.filter']
var i = isFunction(args[2]) ? 2 : 3;
return (isFunction(args[i])) ? args.splice(i,1)[0] : noop;
},
on: function (node, sub, notifier, filter) {
var args = (sub.args) ? sub.args.slice() : [];
args.unshift(null);
sub._detach = node[(filter) ? "delegate" : "on"]({
mouseenter: function (e) {
e.phase = 'over';
notifier.fire(e);
},
mouseleave: function (e) {
var thisObj = sub.context || this;
args[0] = e;
e.type = 'hover';
e.phase = 'out';
sub._extra.apply(thisObj, args);
}
}, filter);
},
detach: function (node, sub, notifier) {
sub._detach.detach();
}
};
conf.delegate = conf.on;
conf.detachDelegate = conf.detach;
Y.Event.define("hover", conf);
}, '3.5.1' ,{requires:['event-mouseenter']});
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