An error occurred while loading the file. Please try again.
-
Pierre Vanduynslager authored48c5efa4
import Util from './util'/** * -------------------------------------------------------------------------- * Bootstrap (v4.0.0-alpha.6): carousel.js * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE) * -------------------------------------------------------------------------- */const Carousel = (($) => { /** * ------------------------------------------------------------------------ * Constants * ------------------------------------------------------------------------ */ const NAME = 'carousel' const VERSION = '4.0.0-alpha.6' const DATA_KEY = 'bs.carousel' const EVENT_KEY = `.${DATA_KEY}` const DATA_API_KEY = '.data-api' const JQUERY_NO_CONFLICT = $.fn[NAME] const TRANSITION_DURATION = 600 const ARROW_LEFT_KEYCODE = 37 // KeyboardEvent.which value for left arrow key const ARROW_RIGHT_KEYCODE = 39 // KeyboardEvent.which value for right arrow key const Default = { interval : 5000, keyboard : true, slide : false, pause : 'hover', wrap : true } const DefaultType = { interval : '(number|boolean)', keyboard : 'boolean', slide : '(boolean|string)', pause : '(string|boolean)', wrap : 'boolean' } const Direction = { NEXT : 'next', PREV : 'prev', LEFT : 'left', RIGHT : 'right' } const Event = { SLIDE : `slide${EVENT_KEY}`, SLID : `slid${EVENT_KEY}`, KEYDOWN : `keydown${EVENT_KEY}`, MOUSEENTER : `mouseenter${EVENT_KEY}`, MOUSELEAVE : `mouseleave${EVENT_KEY}`, LOAD_DATA_API : `load${EVENT_KEY}${DATA_API_KEY}`, CLICK_DATA_API : `click${EVENT_KEY}${DATA_API_KEY}` } const ClassName = { CAROUSEL : 'carousel', ACTIVE : 'active', SLIDE : 'slide', RIGHT : 'carousel-item-right', LEFT : 'carousel-item-left', NEXT : 'carousel-item-next', PREV : 'carousel-item-prev',7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
ITEM : 'carousel-item'
}
const Selector = {
ACTIVE : '.active',
ACTIVE_ITEM : '.active.carousel-item',
ITEM : '.carousel-item',
NEXT_PREV : '.carousel-item-next, .carousel-item-prev',
INDICATORS : '.carousel-indicators',
DATA_SLIDE : '[data-slide], [data-slide-to]',
DATA_RIDE : '[data-ride="carousel"]'
}
/**
* ------------------------------------------------------------------------
* Class Definition
* ------------------------------------------------------------------------
*/
class Carousel {
constructor(element, config) {
this._items = null
this._interval = null
this._activeElement = null
this._isPaused = false
this._isSliding = false
this._config = this._getConfig(config)
this._element = $(element)[0]
this._indicatorsElement = $(this._element).find(Selector.INDICATORS)[0]
this._addEventListeners()
}
// getters
static get VERSION() {
return VERSION
}
static get Default() {
return Default
}
// public
next() {
if (!this._isSliding) {
this._slide(Direction.NEXT)
}
}
nextWhenVisible() {
// Don't call next when the page isn't visible
if (!document.hidden) {
this.next()
}
}
prev() {
if (!this._isSliding) {
this._slide(Direction.PREV)
}
}
141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210
pause(event) {
if (!event) {
this._isPaused = true
}
if ($(this._element).find(Selector.NEXT_PREV)[0] &&
Util.supportsTransitionEnd()) {
Util.triggerTransitionEnd(this._element)
this.cycle(true)
}
clearInterval(this._interval)
this._interval = null
}
cycle(event) {
if (!event) {
this._isPaused = false
}
if (this._interval) {
clearInterval(this._interval)
this._interval = null
}
if (this._config.interval && !this._isPaused) {
this._interval = setInterval(
(document.visibilityState ? this.nextWhenVisible : this.next).bind(this),
this._config.interval
)
}
}
to(index) {
this._activeElement = $(this._element).find(Selector.ACTIVE_ITEM)[0]
const activeIndex = this._getItemIndex(this._activeElement)
if (index > this._items.length - 1 || index < 0) {
return
}
if (this._isSliding) {
$(this._element).one(Event.SLID, () => this.to(index))
return
}
if (activeIndex === index) {
this.pause()
this.cycle()
return
}
const direction = index > activeIndex ?
Direction.NEXT :
Direction.PREV
this._slide(direction, this._items[index])
}
dispose() {
$(this._element).off(EVENT_KEY)
$.removeData(this._element, DATA_KEY)
this._items = null
this._config = null
this._element = null
this._interval = null
this._isPaused = null
this._isSliding = null
211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280
this._activeElement = null
this._indicatorsElement = null
}
// private
_getConfig(config) {
config = $.extend({}, Default, config)
Util.typeCheckConfig(NAME, config, DefaultType)
return config
}
_addEventListeners() {
if (this._config.keyboard) {
$(this._element)
.on(Event.KEYDOWN, (event) => this._keydown(event))
}
if (this._config.pause === 'hover' &&
!('ontouchstart' in document.documentElement)) {
$(this._element)
.on(Event.MOUSEENTER, (event) => this.pause(event))
.on(Event.MOUSELEAVE, (event) => this.cycle(event))
}
}
_keydown(event) {
if (/input|textarea/i.test(event.target.tagName)) {
return
}
switch (event.which) {
case ARROW_LEFT_KEYCODE:
event.preventDefault()
this.prev()
break
case ARROW_RIGHT_KEYCODE:
event.preventDefault()
this.next()
break
default:
return
}
}
_getItemIndex(element) {
this._items = $.makeArray($(element).parent().find(Selector.ITEM))
return this._items.indexOf(element)
}
_getItemByDirection(direction, activeElement) {
const isNextDirection = direction === Direction.NEXT
const isPrevDirection = direction === Direction.PREV
const activeIndex = this._getItemIndex(activeElement)
const lastItemIndex = this._items.length - 1
const isGoingToWrap = isPrevDirection && activeIndex === 0 ||
isNextDirection && activeIndex === lastItemIndex
if (isGoingToWrap && !this._config.wrap) {
return activeElement
}
const delta = direction === Direction.PREV ? -1 : 1
const itemIndex = (activeIndex + delta) % this._items.length
return itemIndex === -1 ?
this._items[this._items.length - 1] : this._items[itemIndex]
}
281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350
_triggerSlideEvent(relatedTarget, eventDirectionName) {
const targetIndex = this._getItemIndex(relatedTarget)
const fromIndex = this._getItemIndex($(this._element).find(Selector.ACTIVE_ITEM)[0])
const slideEvent = $.Event(Event.SLIDE, {
relatedTarget,
direction: eventDirectionName,
from: fromIndex,
to: targetIndex
})
$(this._element).trigger(slideEvent)
return slideEvent
}
_setActiveIndicatorElement(element) {
if (this._indicatorsElement) {
$(this._indicatorsElement)
.find(Selector.ACTIVE)
.removeClass(ClassName.ACTIVE)
const nextIndicator = this._indicatorsElement.children[
this._getItemIndex(element)
]
if (nextIndicator) {
$(nextIndicator).addClass(ClassName.ACTIVE)
}
}
}
_slide(direction, element) {
const activeElement = $(this._element).find(Selector.ACTIVE_ITEM)[0]
const activeElementIndex = this._getItemIndex(activeElement)
const nextElement = element || activeElement &&
this._getItemByDirection(direction, activeElement)
const nextElementIndex = this._getItemIndex(nextElement)
const isCycling = Boolean(this._interval)
let directionalClassName
let orderClassName
let eventDirectionName
if (direction === Direction.NEXT) {
directionalClassName = ClassName.LEFT
orderClassName = ClassName.NEXT
eventDirectionName = Direction.LEFT
} else {
directionalClassName = ClassName.RIGHT
orderClassName = ClassName.PREV
eventDirectionName = Direction.RIGHT
}
if (nextElement && $(nextElement).hasClass(ClassName.ACTIVE)) {
this._isSliding = false
return
}
const slideEvent = this._triggerSlideEvent(nextElement, eventDirectionName)
if (slideEvent.isDefaultPrevented()) {
return
}
if (!activeElement || !nextElement) {
// some weirdness is happening, so we bail
return
}
this._isSliding = true
351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420
if (isCycling) {
this.pause()
}
this._setActiveIndicatorElement(nextElement)
const slidEvent = $.Event(Event.SLID, {
relatedTarget: nextElement,
direction: eventDirectionName,
from: activeElementIndex,
to: nextElementIndex
})
if (Util.supportsTransitionEnd() &&
$(this._element).hasClass(ClassName.SLIDE)) {
$(nextElement).addClass(orderClassName)
Util.reflow(nextElement)
$(activeElement).addClass(directionalClassName)
$(nextElement).addClass(directionalClassName)
$(activeElement)
.one(Util.TRANSITION_END, () => {
$(nextElement)
.removeClass(`${directionalClassName} ${orderClassName}`)
.addClass(ClassName.ACTIVE)
$(activeElement).removeClass(`${ClassName.ACTIVE} ${orderClassName} ${directionalClassName}`)
this._isSliding = false
setTimeout(() => $(this._element).trigger(slidEvent), 0)
})
.emulateTransitionEnd(TRANSITION_DURATION)
} else {
$(activeElement).removeClass(ClassName.ACTIVE)
$(nextElement).addClass(ClassName.ACTIVE)
this._isSliding = false
$(this._element).trigger(slidEvent)
}
if (isCycling) {
this.cycle()
}
}
// static
static _jQueryInterface(config) {
return this.each(function () {
let data = $(this).data(DATA_KEY)
const _config = $.extend({}, Default, $(this).data())
if (typeof config === 'object') {
$.extend(_config, config)
}
const action = typeof config === 'string' ? config : _config.slide
if (!data) {
data = new Carousel(this, _config)
$(this).data(DATA_KEY, data)
}
421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490
if (typeof config === 'number') {
data.to(config)
} else if (typeof action === 'string') {
if (data[action] === undefined) {
throw new Error(`No method named "${action}"`)
}
data[action]()
} else if (_config.interval) {
data.pause()
data.cycle()
}
})
}
static _dataApiClickHandler(event) {
const selector = Util.getSelectorFromElement(this)
if (!selector) {
return
}
const target = $(selector)[0]
if (!target || !$(target).hasClass(ClassName.CAROUSEL)) {
return
}
const config = $.extend({}, $(target).data(), $(this).data())
const slideIndex = this.getAttribute('data-slide-to')
if (slideIndex) {
config.interval = false
}
Carousel._jQueryInterface.call($(target), config)
if (slideIndex) {
$(target).data(DATA_KEY).to(slideIndex)
}
event.preventDefault()
}
}
/**
* ------------------------------------------------------------------------
* Data Api implementation
* ------------------------------------------------------------------------
*/
$(document)
.on(Event.CLICK_DATA_API, Selector.DATA_SLIDE, Carousel._dataApiClickHandler)
$(window).on(Event.LOAD_DATA_API, () => {
$(Selector.DATA_RIDE).each(function () {
const $carousel = $(this)
Carousel._jQueryInterface.call($carousel, $carousel.data())
})
})
/**
* ------------------------------------------------------------------------
* jQuery
* ------------------------------------------------------------------------
*/
491492493494495496497498499500501502503
$.fn[NAME] = Carousel._jQueryInterface
$.fn[NAME].Constructor = Carousel
$.fn[NAME].noConflict = function () {
$.fn[NAME] = JQUERY_NO_CONFLICT
return Carousel._jQueryInterface
}
return Carousel
})(jQuery)
export default Carousel