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adding jquery-visibility

Browse source 
https://github.com/mathiasbynens/jquery-visibility
MIT and GPL licensed
This commit is contained in:
Thomas Mueller 2013-01-11 16:44:25 +01:00
parent 23896a7290
commit 362860c5b5
1 changed files with 32 additions and 0 deletions
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32
apps/files/js/jquery-visibility.js vendored Normal file
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/*! http://mths.be/visibility v1.0.5 by @mathias */
(function (window, document, $, undefined) {
var prefix,
property,
// In Opera, `'onfocusin' in document == true`, hence the extra `hasFocus` check to detect IE-like behavior
eventName = 'onfocusin' in document && 'hasFocus' in document ? 'focusin focusout' : 'focus blur',
prefixes = ['', 'moz', 'ms', 'o', 'webkit'],
$support = $.support,
$event = $.event;
while ((property = prefix = prefixes.pop()) != undefined) {
property = (prefix ? prefix + 'H' : 'h') + 'idden';
if ($support.pageVisibility = typeof document[property] == 'boolean') {
eventName = prefix + 'visibilitychange';
break;
}
}
$(/blur$/.test(eventName) ? window : document).on(eventName, function (event) {
var type = event.type,
originalEvent = event.originalEvent,
toElement = originalEvent.toElement;
// If it’s a `{focusin,focusout}` event (IE), `fromElement` and `toElement` should both be `null` or `undefined`;
// else, the page visibility hasn’t changed, but the user just clicked somewhere in the doc.
// In IE9, we need to check the `relatedTarget` property instead.
if (!/^focus./.test(type) || (toElement == undefined && originalEvent.fromElement == undefined && originalEvent.relatedTarget == undefined)) {
$event.trigger((property && document[property] || /^(?:blur|focusout)$/.test(type) ? 'hide' : 'show') + '.visibility');
}
});
}(this, document, jQuery));