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import $ from 'jquery'
/**
* --------------------------------------------------------------------------
* Bootstrap (v4.0.0-beta.3): util.js
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
* --------------------------------------------------------------------------
*/
const Util = (($) => {
/**
* ------------------------------------------------------------------------
* Private TransitionEnd Helpers
* ------------------------------------------------------------------------
*/
let transition = false
const MAX_UID = 1000000
// Shoutout AngusCroll (https://goo.gl/pxwQGp)
function toType(obj) {
return {}.toString.call(obj).match(/\s([a-zA-Z]+)/)[1].toLowerCase()
}
function getSpecialTransitionEndEvent() {
return {
bindType: transition.end,
delegateType: transition.end,
handle(event) {
if ($(event.target).is(this)) {
return event.handleObj.handler.apply(this, arguments) // eslint-disable-line prefer-rest-params
}
return undefined // eslint-disable-line no-undefined
}
}
}
function transitionEndTest() {
if (typeof window !== 'undefined' && window.QUnit) {
return false
}
return {
end: 'transitionend'
}
}
function transitionEndEmulator(duration) {
let called = false
$(this).one(Util.TRANSITION_END, () => {
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()
}
}
function escapeId(selector) {
// We escape IDs in case of special selectors (selector = '#myId:something')
// $.escapeSelector does not exist in jQuery < 3
selector = typeof $.escapeSelector === 'function' ? $.escapeSelector(selector).substr(1)
: selector.replace(/(:|\.|\[|\]|,|=|@)/g, '\\$1')
return selector
}
/**
* --------------------------------------------------------------------------
* Public Util Api
* --------------------------------------------------------------------------
*/
const Util = {
TRANSITION_END: 'bsTransitionEnd',
getUID(prefix) {
do {
// eslint-disable-next-line no-bitwise
prefix += ~~(Math.random() * MAX_UID) // "~~" acts like a faster Math.floor() here
} while (document.getElementById(prefix))
return prefix
},
getSelectorFromElement(element) {
let selector = element.getAttribute('data-target')
if (!selector || selector === '#') {
selector = element.getAttribute('href') || ''
}
// If it's an ID
if (selector.charAt(0) === '#') {
selector = escapeId(selector)
}
try {
const $selector = $(document).find(selector)
return $selector.length > 0 ? selector : null
} catch (err) {
return null
}
},
reflow(element) {
return element.offsetHeight
},
triggerTransitionEnd(element) {
$(element).trigger(transition.end)
},
supportsTransitionEnd() {
return Boolean(transition)
},
isElement(obj) {
return (obj[0] || obj).nodeType
},
typeCheckConfig(componentName, config, configTypes) {
for (const property in configTypes) {
if (Object.prototype.hasOwnProperty.call(configTypes, property)) {
const expectedTypes = configTypes[property]
const value = config[property]
const valueType = value && Util.isElement(value)
? 'element' : toType(value)
if (!new RegExp(expectedTypes).test(valueType)) {
throw new Error(
`${componentName.toUpperCase()}: ` +
`Option "${property}" provided type "${valueType}" ` +
`but expected type "${expectedTypes}".`)
}
}
}
}
}
setTransitionEndSupport()
return Util
})($)
export default Util
|
