securityos/node_modules/gif.js/site/contents/scripts/vendor/ready.js

55 lines
1.4 KiB
JavaScript

/*!
* domready (c) Dustin Diaz 2012 - License MIT
*/
!function (name, context, definition) {
if (typeof module != 'undefined') module.exports = definition()
else if (typeof define == 'function' && typeof define.amd == 'object') define(definition)
else context[name] = definition()
}('domready', this, function (ready) {
var fns = [], fn, f = false
, doc = document
, testEl = doc.documentElement
, hack = testEl.doScroll
, domContentLoaded = 'DOMContentLoaded'
, addEventListener = 'addEventListener'
, onreadystatechange = 'onreadystatechange'
, readyState = 'readyState'
, loaded = /^loade|c/.test(doc[readyState])
function flush(f) {
loaded = 1
while (f = fns.shift()) f()
}
doc[addEventListener] && doc[addEventListener](domContentLoaded, fn = function () {
doc.removeEventListener(domContentLoaded, fn, f)
flush()
}, f)
hack && doc.attachEvent(onreadystatechange, fn = function () {
if (/^c/.test(doc[readyState])) {
doc.detachEvent(onreadystatechange, fn)
flush()
}
})
return (ready = hack ?
function (fn) {
self != top ?
loaded ? fn() : fns.push(fn) :
function () {
try {
testEl.doScroll('left')
} catch (e) {
return setTimeout(function() { ready(fn) }, 50)
}
fn()
}()
} :
function (fn) {
loaded ? fn() : fns.push(fn)
})
})