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Denys Konovalov
2022-06-22 21:28:26 +02:00
parent 7850584848
commit 01c6b8cf06
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themes/portio/assets/bootstrap-4.5.2/js/src/carousel.js vendored Normal file
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/**
* --------------------------------------------------------------------------
* Bootstrap (v4.5.2): carousel.js
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
* --------------------------------------------------------------------------
*/
import $ from 'jquery'
import Util from './util'
/**
* ------------------------------------------------------------------------
* Constants
* ------------------------------------------------------------------------
*/
const NAME = 'carousel'
const VERSION = '4.5.2'
const DATA_KEY = 'bs.carousel'
const EVENT_KEY = `.${DATA_KEY}`
const DATA_API_KEY = '.data-api'
const JQUERY_NO_CONFLICT = $.fn[NAME]
const ARROW_LEFT_KEYCODE = 37 // KeyboardEvent.which value for left arrow key
const ARROW_RIGHT_KEYCODE = 39 // KeyboardEvent.which value for right arrow key
const TOUCHEVENT_COMPAT_WAIT = 500 // Time for mouse compat events to fire after touch
const SWIPE_THRESHOLD = 40
const Default = {
interval : 5000,
keyboard : true,
slide : false,
pause : 'hover',
wrap : true,
touch : true
}
const DefaultType = {
interval : '(number|boolean)',
keyboard : 'boolean',
slide : '(boolean|string)',
pause : '(string|boolean)',
wrap : 'boolean',
touch : 'boolean'
}
const DIRECTION_NEXT = 'next'
const DIRECTION_PREV = 'prev'
const DIRECTION_LEFT = 'left'
const DIRECTION_RIGHT = 'right'
const EVENT_SLIDE = `slide${EVENT_KEY}`
const EVENT_SLID = `slid${EVENT_KEY}`
const EVENT_KEYDOWN = `keydown${EVENT_KEY}`
const EVENT_MOUSEENTER = `mouseenter${EVENT_KEY}`
const EVENT_MOUSELEAVE = `mouseleave${EVENT_KEY}`
const EVENT_TOUCHSTART = `touchstart${EVENT_KEY}`
const EVENT_TOUCHMOVE = `touchmove${EVENT_KEY}`
const EVENT_TOUCHEND = `touchend${EVENT_KEY}`
const EVENT_POINTERDOWN = `pointerdown${EVENT_KEY}`
const EVENT_POINTERUP = `pointerup${EVENT_KEY}`
const EVENT_DRAG_START = `dragstart${EVENT_KEY}`
const EVENT_LOAD_DATA_API = `load${EVENT_KEY}${DATA_API_KEY}`
const EVENT_CLICK_DATA_API = `click${EVENT_KEY}${DATA_API_KEY}`
const CLASS_NAME_CAROUSEL = 'carousel'
const CLASS_NAME_ACTIVE = 'active'
const CLASS_NAME_SLIDE = 'slide'
const CLASS_NAME_RIGHT = 'carousel-item-right'
const CLASS_NAME_LEFT = 'carousel-item-left'
const CLASS_NAME_NEXT = 'carousel-item-next'
const CLASS_NAME_PREV = 'carousel-item-prev'
const CLASS_NAME_POINTER_EVENT = 'pointer-event'
const SELECTOR_ACTIVE = '.active'
const SELECTOR_ACTIVE_ITEM = '.active.carousel-item'
const SELECTOR_ITEM = '.carousel-item'
const SELECTOR_ITEM_IMG = '.carousel-item img'
const SELECTOR_NEXT_PREV = '.carousel-item-next, .carousel-item-prev'
const SELECTOR_INDICATORS = '.carousel-indicators'
const SELECTOR_DATA_SLIDE = '[data-slide], [data-slide-to]'
const SELECTOR_DATA_RIDE = '[data-ride="carousel"]'
const PointerType = {
TOUCH : 'touch',
PEN : 'pen'
}
/**
* ------------------------------------------------------------------------
* Class Definition
* ------------------------------------------------------------------------
*/
class Carousel {
constructor(element, config) {
this._items = null
this._interval = null
this._activeElement = null
this._isPaused = false
this._isSliding = false
this.touchTimeout = null
this.touchStartX = 0
this.touchDeltaX = 0
this._config = this._getConfig(config)
this._element = element
this._indicatorsElement = this._element.querySelector(SELECTOR_INDICATORS)
this._touchSupported = 'ontouchstart' in document.documentElement || navigator.maxTouchPoints > 0
this._pointerEvent = Boolean(window.PointerEvent || window.MSPointerEvent)
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
// or the carousel or its parent isn't visible
if (!document.hidden &&
($(this._element).is(':visible') && $(this._element).css('visibility') !== 'hidden')) {
this.next()
}
}
prev() {
if (!this._isSliding) {
this._slide(DIRECTION_PREV)
}
}
pause(event) {
if (!event) {
this._isPaused = true
}
if (this._element.querySelector(SELECTOR_NEXT_PREV)) {
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.querySelector(SELECTOR_ACTIVE_ITEM)
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
this._activeElement = null
this._indicatorsElement = null
}
// Private
_getConfig(config) {
config = {
...Default,
...config
}
Util.typeCheckConfig(NAME, config, DefaultType)
return config
}
_handleSwipe() {
const absDeltax = Math.abs(this.touchDeltaX)
if (absDeltax <= SWIPE_THRESHOLD) {
return
}
const direction = absDeltax / this.touchDeltaX
this.touchDeltaX = 0
// swipe left
if (direction > 0) {
this.prev()
}
// swipe right
if (direction < 0) {
this.next()
}
}
_addEventListeners() {
if (this._config.keyboard) {
$(this._element).on(EVENT_KEYDOWN, (event) => this._keydown(event))
}
if (this._config.pause === 'hover') {
$(this._element)
.on(EVENT_MOUSEENTER, (event) => this.pause(event))
.on(EVENT_MOUSELEAVE, (event) => this.cycle(event))
}
if (this._config.touch) {
this._addTouchEventListeners()
}
}
_addTouchEventListeners() {
if (!this._touchSupported) {
return
}
const start = (event) => {
if (this._pointerEvent && PointerType[event.originalEvent.pointerType.toUpperCase()]) {
this.touchStartX = event.originalEvent.clientX
} else if (!this._pointerEvent) {
this.touchStartX = event.originalEvent.touches[0].clientX
}
}
const move = (event) => {
// ensure swiping with one touch and not pinching
if (event.originalEvent.touches && event.originalEvent.touches.length > 1) {
this.touchDeltaX = 0
} else {
this.touchDeltaX = event.originalEvent.touches[0].clientX - this.touchStartX
}
}
const end = (event) => {
if (this._pointerEvent && PointerType[event.originalEvent.pointerType.toUpperCase()]) {
this.touchDeltaX = event.originalEvent.clientX - this.touchStartX
}
this._handleSwipe()
if (this._config.pause === 'hover') {
// If it's a touch-enabled device, mouseenter/leave are fired as
// part of the mouse compatibility events on first tap - the carousel
// would stop cycling until user tapped out of it;
// here, we listen for touchend, explicitly pause the carousel
// (as if it's the second time we tap on it, mouseenter compat event
// is NOT fired) and after a timeout (to allow for mouse compatibility
// events to fire) we explicitly restart cycling
this.pause()
if (this.touchTimeout) {
clearTimeout(this.touchTimeout)
}
this.touchTimeout = setTimeout((event) => this.cycle(event), TOUCHEVENT_COMPAT_WAIT + this._config.interval)
}
}
$(this._element.querySelectorAll(SELECTOR_ITEM_IMG))
.on(EVENT_DRAG_START, (e) => e.preventDefault())
if (this._pointerEvent) {
$(this._element).on(EVENT_POINTERDOWN, (event) => start(event))
$(this._element).on(EVENT_POINTERUP, (event) => end(event))
this._element.classList.add(CLASS_NAME_POINTER_EVENT)
} else {
$(this._element).on(EVENT_TOUCHSTART, (event) => start(event))
$(this._element).on(EVENT_TOUCHMOVE, (event) => move(event))
$(this._element).on(EVENT_TOUCHEND, (event) => end(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:
}
}
_getItemIndex(element) {
this._items = element && element.parentNode
? [].slice.call(element.parentNode.querySelectorAll(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]
}
_triggerSlideEvent(relatedTarget, eventDirectionName) {
const targetIndex = this._getItemIndex(relatedTarget)
const fromIndex = this._getItemIndex(this._element.querySelector(SELECTOR_ACTIVE_ITEM))
const slideEvent = $.Event(EVENT_SLIDE, {
relatedTarget,
direction: eventDirectionName,
from: fromIndex,
to: targetIndex
})
$(this._element).trigger(slideEvent)
return slideEvent
}
_setActiveIndicatorElement(element) {
if (this._indicatorsElement) {
const indicators = [].slice.call(this._indicatorsElement.querySelectorAll(SELECTOR_ACTIVE))
$(indicators).removeClass(CLASS_NAME_ACTIVE)
const nextIndicator = this._indicatorsElement.children[
this._getItemIndex(element)
]
if (nextIndicator) {
$(nextIndicator).addClass(CLASS_NAME_ACTIVE)
}
}
}
_slide(direction, element) {
const activeElement = this._element.querySelector(SELECTOR_ACTIVE_ITEM)
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 = CLASS_NAME_LEFT
orderClassName = CLASS_NAME_NEXT
eventDirectionName = DIRECTION_LEFT
} else {
directionalClassName = CLASS_NAME_RIGHT
orderClassName = CLASS_NAME_PREV
eventDirectionName = DIRECTION_RIGHT
}
if (nextElement && $(nextElement).hasClass(CLASS_NAME_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
if (isCycling) {
this.pause()
}
this._setActiveIndicatorElement(nextElement)
const slidEvent = $.Event(EVENT_SLID, {
relatedTarget: nextElement,
direction: eventDirectionName,
from: activeElementIndex,
to: nextElementIndex
})
if ($(this._element).hasClass(CLASS_NAME_SLIDE)) {
$(nextElement).addClass(orderClassName)
Util.reflow(nextElement)
$(activeElement).addClass(directionalClassName)
$(nextElement).addClass(directionalClassName)
const nextElementInterval = parseInt(nextElement.getAttribute('data-interval'), 10)
if (nextElementInterval) {
this._config.defaultInterval = this._config.defaultInterval || this._config.interval
this._config.interval = nextElementInterval
} else {
this._config.interval = this._config.defaultInterval || this._config.interval
}
const transitionDuration = Util.getTransitionDurationFromElement(activeElement)
$(activeElement)
.one(Util.TRANSITION_END, () => {
$(nextElement)
.removeClass(`${directionalClassName} ${orderClassName}`)
.addClass(CLASS_NAME_ACTIVE)
$(activeElement).removeClass(`${CLASS_NAME_ACTIVE} ${orderClassName} ${directionalClassName}`)
this._isSliding = false
setTimeout(() => $(this._element).trigger(slidEvent), 0)
})
.emulateTransitionEnd(transitionDuration)
} else {
$(activeElement).removeClass(CLASS_NAME_ACTIVE)
$(nextElement).addClass(CLASS_NAME_ACTIVE)
this._isSliding = false
$(this._element).trigger(slidEvent)
}
if (isCycling) {
this.cycle()
}
}
// Static
static _jQueryInterface(config) {
return this.each(function () {
let data = $(this).data(DATA_KEY)
let _config = {
...Default,
...$(this).data()
}
if (typeof config === 'object') {
_config = {
..._config,
...config
}
}
const action = typeof config === 'string' ? config : _config.slide
if (!data) {
data = new Carousel(this, _config)
$(this).data(DATA_KEY, data)
}
if (typeof config === 'number') {
data.to(config)
} else if (typeof action === 'string') {
if (typeof data[action] === 'undefined') {
throw new TypeError(`No method named "${action}"`)
}
data[action]()
} else if (_config.interval && _config.ride) {
data.pause()
data.cycle()
}
})
}
static _dataApiClickHandler(event) {
const selector = Util.getSelectorFromElement(this)
if (!selector) {
return
}
const target = $(selector)[0]
if (!target || !$(target).hasClass(CLASS_NAME_CAROUSEL)) {
return
}
const config = {
...$(target).data(),
...$(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, () => {
const carousels = [].slice.call(document.querySelectorAll(SELECTOR_DATA_RIDE))
for (let i = 0, len = carousels.length; i < len; i++) {
const $carousel = $(carousels[i])
Carousel._jQueryInterface.call($carousel, $carousel.data())
}
})
/**
* ------------------------------------------------------------------------
* jQuery
* ------------------------------------------------------------------------
*/
$.fn[NAME] = Carousel._jQueryInterface
$.fn[NAME].Constructor = Carousel
$.fn[NAME].noConflict = () => {
$.fn[NAME] = JQUERY_NO_CONFLICT
return Carousel._jQueryInterface
}
export default Carousel