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/**
* --------------------------------------------------------------------------
* Bootstrap (v4.0.0): util.js
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
* --------------------------------------------------------------------------
*/
const Util = (($) => {
/**
* ------------------------------------------------------------------------
* Private TransitionEnd Helpers
* ------------------------------------------------------------------------
*/
let transition = false
const TransitionEndEvent = {
WebkitTransition : 'webkitTransitionEnd',
MozTransition : 'transitionend',
OTransition : 'oTransitionEnd otransitionend',
transition : 'transitionend'
}
// shoutout AngusCroll (https://goo.gl/pxwQGp)
function toType(obj) {
return ({}).toString.call(obj).match(/\s([a-zA-Z]+)/)[1].toLowerCase()
}
function isElement(obj) {
return (obj[0] || obj).nodeType;
}
function getSpecialTransitionEndEvent() {
return {
bindType: transition.end,
delegateType: transition.end,
handle: function (event) {
if ($(event.target).is(this)) {
return event.handleObj.handler.apply(this, arguments)
}
}
}
}
function transitionEndTest() {
if (window.QUnit) {
return false
}
let el = document.createElement('bootstrap')
for (var name in TransitionEndEvent) {
if (el.style[name] !== undefined) {
return { end: TransitionEndEvent[name] }
}
}
return false
}
function transitionEndEmulator(duration) {
let called = false
$(this).one(Util.TRANSITION_END, function () {
called = true
})
setTimeout(() => {
if (!called) {
Util.triggerTransitionEnd(this)
}
}, duration)
return this
}
function setTransitionEndSupport() {
transition = transitionEndTest()
$.fn.emulateTransitionEnd = transitionEndEmulator
if (Util.supportsTransitionEnd()) {
$.event.special[Util.TRANSITION_END] = getSpecialTransitionEndEvent()
}
}
/**
* --------------------------------------------------------------------------
* Public Util Api
* --------------------------------------------------------------------------
*/
let Util = {
TRANSITION_END: 'bsTransitionEnd',
getUID(prefix) {
do prefix += ~~(Math.random() * 1000000)
while (document.getElementById(prefix))
return prefix
},
getSelectorFromElement(element) {
let selector = element.getAttribute('data-target')
if (!selector) {
selector = element.getAttribute('href') || ''
selector = /^#[a-z]/i.test(selector) ? selector : null
}
return selector
},
reflow(element) {
new Function('bs', 'return bs')(element.offsetHeight)
},
triggerTransitionEnd(element) {
$(element).trigger(transition.end)
},
supportsTransitionEnd() {
return !!transition
},
typeCheckConfig(componentName, config, configTypes) {
for (let property in configTypes) {
let expectedTypes = configTypes[property]
let value = config[property]
let valueType
if (value && isElement(value)) valueType = 'element'
else valueType = toType(value)
if (!new RegExp(expectedTypes).test(valueType)) {
throw new Error(
`${componentName.toUpperCase()}: ` +
`Option "${property}" provided type "${valueType}" ` +
`but expected type "${expectedTypes}".`)
}
}
}
}
setTransitionEndSupport()
return Util
})(jQuery)
export default Util
|
