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-rw-r--r--js/src/carousel/carousel.js641
-rw-r--r--js/src/carousel/carousel.spec.js1197
2 files changed, 1838 insertions, 0 deletions
diff --git a/js/src/carousel/carousel.js b/js/src/carousel/carousel.js
new file mode 100644
index 000000000..0e1bad14a
--- /dev/null
+++ b/js/src/carousel/carousel.js
@@ -0,0 +1,641 @@
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v4.3.1): carousel.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+import {
+ jQuery as $,
+ TRANSITION_END,
+ emulateTransitionEnd,
+ getSelectorFromElement,
+ getTransitionDurationFromElement,
+ isVisible,
+ makeArray,
+ reflow,
+ triggerTransitionEnd,
+ typeCheckConfig
+} from '../util/index'
+import Data from '../dom/data'
+import EventHandler from '../dom/event-handler'
+import Manipulator from '../dom/manipulator'
+import SelectorEngine from '../dom/selector-engine'
+
+/**
+ * ------------------------------------------------------------------------
+ * Constants
+ * ------------------------------------------------------------------------
+ */
+
+const NAME = 'carousel'
+const VERSION = '4.3.1'
+const DATA_KEY = 'bs.carousel'
+const EVENT_KEY = `.${DATA_KEY}`
+const DATA_API_KEY = '.data-api'
+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',
+ 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${EVENT_KEY}`,
+ TOUCHSTART: `touchstart${EVENT_KEY}`,
+ TOUCHMOVE: `touchmove${EVENT_KEY}`,
+ TOUCHEND: `touchend${EVENT_KEY}`,
+ POINTERDOWN: `pointerdown${EVENT_KEY}`,
+ POINTERUP: `pointerup${EVENT_KEY}`,
+ DRAG_START: `dragstart${EVENT_KEY}`,
+ LOAD_DATA_API: `load${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',
+ ITEM: 'carousel-item',
+ POINTER_EVENT: 'pointer-event'
+}
+
+const Selector = {
+ ACTIVE: '.active',
+ ACTIVE_ITEM: '.active.carousel-item',
+ ITEM: '.carousel-item',
+ ITEM_IMG: '.carousel-item img',
+ NEXT_PREV: '.carousel-item-next, .carousel-item-prev',
+ INDICATORS: '.carousel-indicators',
+ DATA_SLIDE: '[data-slide], [data-slide-to]',
+ 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 = SelectorEngine.findOne(Selector.INDICATORS, this._element)
+ this._touchSupported = 'ontouchstart' in document.documentElement || navigator.maxTouchPoints > 0
+ this._pointerEvent = Boolean(window.PointerEvent || window.MSPointerEvent)
+
+ this._addEventListeners()
+ Data.setData(element, DATA_KEY, this)
+ }
+
+ // 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 && isVisible(this._element)) {
+ this.next()
+ }
+ }
+
+ prev() {
+ if (!this._isSliding) {
+ this._slide(Direction.PREV)
+ }
+ }
+
+ pause(event) {
+ if (!event) {
+ this._isPaused = true
+ }
+
+ if (SelectorEngine.findOne(Selector.NEXT_PREV, this._element)) {
+ 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 && this._config.interval && !this._isPaused) {
+ this._interval = setInterval(
+ (document.visibilityState ? this.nextWhenVisible : this.next).bind(this),
+ this._config.interval
+ )
+ }
+ }
+
+ to(index) {
+ this._activeElement = SelectorEngine.findOne(Selector.ACTIVE_ITEM, this._element)
+ const activeIndex = this._getItemIndex(this._activeElement)
+
+ if (index > this._items.length - 1 || index < 0) {
+ return
+ }
+
+ if (this._isSliding) {
+ EventHandler.one(this._element, 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() {
+ EventHandler.off(this._element, EVENT_KEY)
+ Data.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
+ }
+ 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) {
+ EventHandler
+ .on(this._element, Event.KEYDOWN, event => this._keydown(event))
+ }
+
+ if (this._config.pause === 'hover') {
+ EventHandler
+ .on(this._element, Event.MOUSEENTER, event => this.pause(event))
+ EventHandler
+ .on(this._element, Event.MOUSELEAVE, event => this.cycle(event))
+ }
+
+ if (this._config.touch && this._touchSupported) {
+ this._addTouchEventListeners()
+ }
+ }
+
+ _addTouchEventListeners() {
+ const start = event => {
+ if (this._pointerEvent && PointerType[event.pointerType.toUpperCase()]) {
+ this.touchStartX = event.clientX
+ } else if (!this._pointerEvent) {
+ this.touchStartX = event.touches[0].clientX
+ }
+ }
+
+ const move = event => {
+ // ensure swiping with one touch and not pinching
+ if (event.touches && event.touches.length > 1) {
+ this.touchDeltaX = 0
+ } else {
+ this.touchDeltaX = event.touches[0].clientX - this.touchStartX
+ }
+ }
+
+ const end = event => {
+ if (this._pointerEvent && PointerType[event.pointerType.toUpperCase()]) {
+ this.touchDeltaX = event.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)
+ }
+ }
+
+ makeArray(SelectorEngine.find(Selector.ITEM_IMG, this._element)).forEach(itemImg => {
+ EventHandler.on(itemImg, Event.DRAG_START, e => e.preventDefault())
+ })
+
+ if (this._pointerEvent) {
+ EventHandler.on(this._element, Event.POINTERDOWN, event => start(event))
+ EventHandler.on(this._element, Event.POINTERUP, event => end(event))
+
+ this._element.classList.add(ClassName.POINTER_EVENT)
+ } else {
+ EventHandler.on(this._element, Event.TOUCHSTART, event => start(event))
+ EventHandler.on(this._element, Event.TOUCHMOVE, event => move(event))
+ EventHandler.on(this._element, 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 ?
+ makeArray(SelectorEngine.find(Selector.ITEM, element.parentNode)) :
+ []
+
+ 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(SelectorEngine.findOne(Selector.ACTIVE_ITEM, this._element))
+
+ return EventHandler.trigger(this._element, Event.SLIDE, {
+ relatedTarget,
+ direction: eventDirectionName,
+ from: fromIndex,
+ to: targetIndex
+ })
+ }
+
+ _setActiveIndicatorElement(element) {
+ if (this._indicatorsElement) {
+ const indicators = SelectorEngine.find(Selector.ACTIVE, this._indicatorsElement)
+ for (let i = 0; i < indicators.length; i++) {
+ indicators[i].classList.remove(ClassName.ACTIVE)
+ }
+
+ const nextIndicator = this._indicatorsElement.children[
+ this._getItemIndex(element)
+ ]
+
+ if (nextIndicator) {
+ nextIndicator.classList.add(ClassName.ACTIVE)
+ }
+ }
+ }
+
+ _slide(direction, element) {
+ const activeElement = SelectorEngine.findOne(Selector.ACTIVE_ITEM, this._element)
+ 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.classList.contains(ClassName.ACTIVE)) {
+ this._isSliding = false
+ return
+ }
+
+ const slideEvent = this._triggerSlideEvent(nextElement, eventDirectionName)
+ if (slideEvent.defaultPrevented) {
+ return
+ }
+
+ if (!activeElement || !nextElement) {
+ // Some weirdness is happening, so we bail
+ return
+ }
+
+ this._isSliding = true
+
+ if (isCycling) {
+ this.pause()
+ }
+
+ this._setActiveIndicatorElement(nextElement)
+
+ if (this._element.classList.contains(ClassName.SLIDE)) {
+ nextElement.classList.add(orderClassName)
+
+ reflow(nextElement)
+
+ activeElement.classList.add(directionalClassName)
+ nextElement.classList.add(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 = getTransitionDurationFromElement(activeElement)
+
+ EventHandler
+ .one(activeElement, TRANSITION_END, () => {
+ nextElement.classList.remove(directionalClassName)
+ nextElement.classList.remove(orderClassName)
+ nextElement.classList.add(ClassName.ACTIVE)
+
+ activeElement.classList.remove(ClassName.ACTIVE)
+ activeElement.classList.remove(orderClassName)
+ activeElement.classList.remove(directionalClassName)
+
+ this._isSliding = false
+
+ setTimeout(() => {
+ EventHandler.trigger(this._element, Event.SLID, {
+ relatedTarget: nextElement,
+ direction: eventDirectionName,
+ from: activeElementIndex,
+ to: nextElementIndex
+ })
+ }, 0)
+ })
+
+ emulateTransitionEnd(activeElement, transitionDuration)
+ } else {
+ activeElement.classList.remove(ClassName.ACTIVE)
+ nextElement.classList.add(ClassName.ACTIVE)
+
+ this._isSliding = false
+ EventHandler.trigger(this._element, Event.SLID, {
+ relatedTarget: nextElement,
+ direction: eventDirectionName,
+ from: activeElementIndex,
+ to: nextElementIndex
+ })
+ }
+
+ if (isCycling) {
+ this.cycle()
+ }
+ }
+
+ // Static
+
+ static _carouselInterface(element, config) {
+ let data = Data.getData(element, DATA_KEY)
+ let _config = {
+ ...Default,
+ ...Manipulator.getDataAttributes(element)
+ }
+
+ if (typeof config === 'object') {
+ _config = {
+ ..._config,
+ ...config
+ }
+ }
+
+ const action = typeof config === 'string' ? config : _config.slide
+
+ if (!data) {
+ data = new Carousel(element, _config)
+ }
+
+ 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 _jQueryInterface(config) {
+ return this.each(function () {
+ Carousel._carouselInterface(this, config)
+ })
+ }
+
+ static _dataApiClickHandler(event) {
+ const selector = getSelectorFromElement(this)
+
+ if (!selector) {
+ return
+ }
+
+ const target = SelectorEngine.findOne(selector)
+
+ if (!target || !target.classList.contains(ClassName.CAROUSEL)) {
+ return
+ }
+
+ const config = {
+ ...Manipulator.getDataAttributes(target),
+ ...Manipulator.getDataAttributes(this)
+ }
+ const slideIndex = this.getAttribute('data-slide-to')
+
+ if (slideIndex) {
+ config.interval = false
+ }
+
+ Carousel._carouselInterface(target, config)
+
+ if (slideIndex) {
+ Data.getData(target, DATA_KEY).to(slideIndex)
+ }
+
+ event.preventDefault()
+ }
+
+ static _getInstance(element) {
+ return Data.getData(element, DATA_KEY)
+ }
+}
+
+/**
+ * ------------------------------------------------------------------------
+ * Data Api implementation
+ * ------------------------------------------------------------------------
+ */
+
+EventHandler
+ .on(document, Event.CLICK_DATA_API, Selector.DATA_SLIDE, Carousel._dataApiClickHandler)
+
+EventHandler.on(window, Event.LOAD_DATA_API, () => {
+ const carousels = makeArray(SelectorEngine.find(Selector.DATA_RIDE))
+ for (let i = 0, len = carousels.length; i < len; i++) {
+ Carousel._carouselInterface(carousels[i], Data.getData(carousels[i], DATA_KEY))
+ }
+})
+
+/**
+ * ------------------------------------------------------------------------
+ * jQuery
+ * ------------------------------------------------------------------------
+ * add .carousel to jQuery only if jQuery is present
+ */
+/* istanbul ignore if */
+if (typeof $ !== 'undefined') {
+ const JQUERY_NO_CONFLICT = $.fn[NAME]
+ $.fn[NAME] = Carousel._jQueryInterface
+ $.fn[NAME].Constructor = Carousel
+ $.fn[NAME].noConflict = () => {
+ $.fn[NAME] = JQUERY_NO_CONFLICT
+ return Carousel._jQueryInterface
+ }
+}
+
+export default Carousel
diff --git a/js/src/carousel/carousel.spec.js b/js/src/carousel/carousel.spec.js
new file mode 100644
index 000000000..9f897110d
--- /dev/null
+++ b/js/src/carousel/carousel.spec.js
@@ -0,0 +1,1197 @@
+import Carousel from './carousel'
+import EventHandler from '../dom/event-handler'
+
+/** Test helpers */
+import { getFixture, clearFixture, createEvent, jQueryMock } from '../../tests/helpers/fixture'
+
+describe('Carousel', () => {
+ const { Simulator, PointerEvent, MSPointerEvent } = window
+ const originWinPointerEvent = PointerEvent || MSPointerEvent
+ const supportPointerEvent = Boolean(PointerEvent || MSPointerEvent)
+
+ window.MSPointerEvent = null
+ const cssStyleCarousel = '.carousel.pointer-event { -ms-touch-action: none; touch-action: none; }'
+
+ const stylesCarousel = document.createElement('style')
+ stylesCarousel.type = 'text/css'
+ stylesCarousel.appendChild(document.createTextNode(cssStyleCarousel))
+
+ const clearPointerEvents = () => {
+ window.PointerEvent = null
+ }
+
+ const restorePointerEvents = () => {
+ window.PointerEvent = originWinPointerEvent
+ }
+
+ let fixtureEl
+
+ beforeAll(() => {
+ fixtureEl = getFixture()
+ })
+
+ afterEach(() => {
+ clearFixture()
+ })
+
+ describe('VERSION', () => {
+ it('should return plugin version', () => {
+ expect(Carousel.VERSION).toEqual(jasmine.any(String))
+ })
+ })
+
+ describe('Default', () => {
+ it('should return plugin default config', () => {
+ expect(Carousel.Default).toEqual(jasmine.any(Object))
+ })
+ })
+
+ describe('constructor', () => {
+ it('should go to next item if right arrow key is pressed', done => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div class="carousel-item active">item 1</div>',
+ ' <div id="item2" class="carousel-item">item 2</div>',
+ ' <div class="carousel-item">item 3</div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('#myCarousel')
+ const carousel = new Carousel(carouselEl, {
+ keyboard: true
+ })
+
+ spyOn(carousel, '_keydown').and.callThrough()
+
+ carouselEl.addEventListener('slid.bs.carousel', () => {
+ expect(fixtureEl.querySelector('.active')).toEqual(fixtureEl.querySelector('#item2'))
+ expect(carousel._keydown).toHaveBeenCalled()
+ done()
+ })
+
+ const keyDown = createEvent('keydown')
+ keyDown.which = 39
+
+ carouselEl.dispatchEvent(keyDown)
+ })
+
+ it('should go to previous item if left arrow key is pressed', done => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div id="item1" class="carousel-item">item 1</div>',
+ ' <div class="carousel-item active">item 2</div>',
+ ' <div class="carousel-item">item 3</div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('#myCarousel')
+ const carousel = new Carousel(carouselEl, {
+ keyboard: true
+ })
+
+ spyOn(carousel, '_keydown').and.callThrough()
+
+ carouselEl.addEventListener('slid.bs.carousel', () => {
+ expect(fixtureEl.querySelector('.active')).toEqual(fixtureEl.querySelector('#item1'))
+ expect(carousel._keydown).toHaveBeenCalled()
+ done()
+ })
+
+ const keyDown = createEvent('keydown')
+ keyDown.which = 37
+
+ carouselEl.dispatchEvent(keyDown)
+ })
+
+ it('should not prevent keydown if key is not ARROW_LEFT or ARROW_RIGHT', done => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div class="carousel-item active">item 1</div>',
+ ' <div class="carousel-item">item 2</div>',
+ ' <div class="carousel-item">item 3</div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('#myCarousel')
+ const carousel = new Carousel(carouselEl, {
+ keyboard: true
+ })
+
+ spyOn(carousel, '_keydown').and.callThrough()
+
+ carouselEl.addEventListener('keydown', event => {
+ expect(carousel._keydown).toHaveBeenCalled()
+ expect(event.defaultPrevented).toEqual(false)
+ done()
+ })
+
+ const keyDown = createEvent('keydown')
+ keyDown.which = 40
+
+ carouselEl.dispatchEvent(keyDown)
+ })
+
+ it('should ignore keyboard events within <input>s and <textarea>s', () => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div class="carousel-item active">',
+ ' <input type="text" />',
+ ' <textarea></textarea>',
+ ' </div>',
+ ' <div class="carousel-item"></div>',
+ ' <div class="carousel-item">item 3</div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('#myCarousel')
+ const input = fixtureEl.querySelector('input')
+ const textarea = fixtureEl.querySelector('textarea')
+ const carousel = new Carousel(carouselEl, {
+ keyboard: true
+ })
+
+ const spyKeyDown = spyOn(carousel, '_keydown').and.callThrough()
+ const spyPrev = spyOn(carousel, 'prev')
+ const spyNext = spyOn(carousel, 'next')
+
+ const keyDown = createEvent('keydown', { bubbles: true, cancelable: true })
+ keyDown.which = 39
+ Object.defineProperty(keyDown, 'target', {
+ value: input,
+ writable: true,
+ configurable: true
+ })
+
+ input.dispatchEvent(keyDown)
+
+ expect(spyKeyDown).toHaveBeenCalled()
+ expect(spyPrev).not.toHaveBeenCalled()
+ expect(spyNext).not.toHaveBeenCalled()
+
+ spyKeyDown.calls.reset()
+ spyPrev.calls.reset()
+ spyNext.calls.reset()
+
+ Object.defineProperty(keyDown, 'target', {
+ value: textarea
+ })
+ textarea.dispatchEvent(keyDown)
+
+ expect(spyKeyDown).toHaveBeenCalled()
+ expect(spyPrev).not.toHaveBeenCalled()
+ expect(spyNext).not.toHaveBeenCalled()
+ })
+
+ it('should wrap around from end to start when wrap option is true', done => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div id="one" class="carousel-item active"></div>',
+ ' <div id="two" class="carousel-item"></div>',
+ ' <div id="three" class="carousel-item">item 3</div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('#myCarousel')
+ const carousel = new Carousel(carouselEl, { wrap: true })
+ const getActiveId = () => {
+ return carouselEl.querySelector('.carousel-item.active').getAttribute('id')
+ }
+
+ carouselEl.addEventListener('slid.bs.carousel', e => {
+ const activeId = getActiveId()
+
+ if (activeId === 'two') {
+ carousel.next()
+ return
+ }
+
+ if (activeId === 'three') {
+ carousel.next()
+ return
+ }
+
+ if (activeId === 'one') {
+ // carousel wrapped around and slid from 3rd to 1st slide
+ expect(activeId).toEqual('one')
+ expect(e.from + 1).toEqual(3)
+ done()
+ }
+ })
+
+ carousel.next()
+ })
+
+ it('should stay at the start when the prev method is called and wrap is false', done => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div id="one" class="carousel-item active"></div>',
+ ' <div id="two" class="carousel-item"></div>',
+ ' <div id="three" class="carousel-item">item 3</div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('#myCarousel')
+ const firstElement = fixtureEl.querySelector('#one')
+ const carousel = new Carousel(carouselEl, { wrap: false })
+
+ carouselEl.addEventListener('slid.bs.carousel', () => {
+ throw new Error('carousel slid when it should not have slid')
+ })
+
+ carousel.prev()
+
+ setTimeout(() => {
+ expect(firstElement.classList.contains('active')).toEqual(true)
+ done()
+ }, 10)
+ })
+
+ it('should not add touch event listeners if touch = false', () => {
+ fixtureEl.innerHTML = '<div></div>'
+
+ const carouselEl = fixtureEl.querySelector('div')
+
+ spyOn(Carousel.prototype, '_addTouchEventListeners')
+
+ const carousel = new Carousel(carouselEl, {
+ touch: false
+ })
+
+ expect(carousel._addTouchEventListeners).not.toHaveBeenCalled()
+ })
+
+ it('should not add touch event listeners if touch supported = false', () => {
+ fixtureEl.innerHTML = '<div></div>'
+
+ const carouselEl = fixtureEl.querySelector('div')
+
+ const carousel = new Carousel(carouselEl)
+
+ EventHandler.off(carouselEl, '.bs-carousel')
+ carousel._touchSupported = false
+
+ spyOn(carousel, '_addTouchEventListeners')
+
+ carousel._addEventListeners()
+
+ expect(carousel._addTouchEventListeners).not.toHaveBeenCalled()
+ })
+
+ it('should add touch event listeners by default', () => {
+ fixtureEl.innerHTML = '<div></div>'
+
+ const carouselEl = fixtureEl.querySelector('div')
+
+ spyOn(Carousel.prototype, '_addTouchEventListeners')
+
+ document.documentElement.ontouchstart = () => {}
+ const carousel = new Carousel(carouselEl)
+
+ expect(carousel._addTouchEventListeners).toHaveBeenCalled()
+ })
+
+ it('should allow swiperight and call prev with pointer events', done => {
+ if (!supportPointerEvent) {
+ expect().nothing()
+ done()
+ return
+ }
+
+ document.documentElement.ontouchstart = () => {}
+ document.head.appendChild(stylesCarousel)
+ Simulator.setType('pointer')
+
+ fixtureEl.innerHTML = [
+ '<div class="carousel" data-interval="false">',
+ ' <div class="carousel-inner">',
+ ' <div id="item" class="carousel-item">',
+ ' <img alt="">',
+ ' </div>',
+ ' <div class="carousel-item active">',
+ ' <img alt="">',
+ ' </div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('.carousel')
+ const item = fixtureEl.querySelector('#item')
+ const carousel = new Carousel(carouselEl)
+
+ spyOn(carousel, 'prev').and.callThrough()
+
+ carouselEl.addEventListener('slid.bs.carousel', () => {
+ expect(item.classList.contains('active')).toEqual(true)
+ expect(carousel.prev).toHaveBeenCalled()
+ document.head.removeChild(stylesCarousel)
+ delete document.documentElement.ontouchstart
+ done()
+ })
+
+ Simulator.gestures.swipe(carouselEl, {
+ deltaX: 300,
+ deltaY: 0
+ })
+ })
+
+ it('should allow swipeleft and call next with pointer events', done => {
+ if (!supportPointerEvent) {
+ expect().nothing()
+ done()
+ return
+ }
+
+ document.documentElement.ontouchstart = () => {}
+ document.head.appendChild(stylesCarousel)
+ Simulator.setType('pointer')
+
+ fixtureEl.innerHTML = [
+ '<div class="carousel" data-interval="false">',
+ ' <div class="carousel-inner">',
+ ' <div id="item" class="carousel-item active">',
+ ' <img alt="">',
+ ' </div>',
+ ' <div class="carousel-item">',
+ ' <img alt="">',
+ ' </div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('.carousel')
+ const item = fixtureEl.querySelector('#item')
+ const carousel = new Carousel(carouselEl)
+
+ spyOn(carousel, 'next').and.callThrough()
+
+ carouselEl.addEventListener('slid.bs.carousel', () => {
+ expect(item.classList.contains('active')).toEqual(false)
+ expect(carousel.next).toHaveBeenCalled()
+ document.head.removeChild(stylesCarousel)
+ delete document.documentElement.ontouchstart
+ done()
+ })
+
+ Simulator.gestures.swipe(carouselEl, {
+ pos: [300, 10],
+ deltaX: -300,
+ deltaY: 0
+ })
+ })
+
+ it('should allow swiperight and call prev with touch events', done => {
+ Simulator.setType('touch')
+ clearPointerEvents()
+ document.documentElement.ontouchstart = () => {}
+
+ fixtureEl.innerHTML = [
+ '<div class="carousel" data-interval="false">',
+ ' <div class="carousel-inner">',
+ ' <div id="item" class="carousel-item">',
+ ' <img alt="">',
+ ' </div>',
+ ' <div class="carousel-item active">',
+ ' <img alt="">',
+ ' </div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('.carousel')
+ const item = fixtureEl.querySelector('#item')
+ const carousel = new Carousel(carouselEl)
+
+ spyOn(carousel, 'prev').and.callThrough()
+
+ carouselEl.addEventListener('slid.bs.carousel', () => {
+ expect(item.classList.contains('active')).toEqual(true)
+ expect(carousel.prev).toHaveBeenCalled()
+ delete document.documentElement.ontouchstart
+ restorePointerEvents()
+ done()
+ })
+
+ Simulator.gestures.swipe(carouselEl, {
+ deltaX: 300,
+ deltaY: 0
+ })
+ })
+
+ it('should allow swipeleft and call next with touch events', done => {
+ Simulator.setType('touch')
+ clearPointerEvents()
+ document.documentElement.ontouchstart = () => {}
+
+ fixtureEl.innerHTML = [
+ '<div class="carousel" data-interval="false">',
+ ' <div class="carousel-inner">',
+ ' <div id="item" class="carousel-item active">',
+ ' <img alt="">',
+ ' </div>',
+ ' <div class="carousel-item">',
+ ' <img alt="">',
+ ' </div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('.carousel')
+ const item = fixtureEl.querySelector('#item')
+ const carousel = new Carousel(carouselEl)
+
+ spyOn(carousel, 'next').and.callThrough()
+
+ carouselEl.addEventListener('slid.bs.carousel', () => {
+ expect(item.classList.contains('active')).toEqual(false)
+ expect(carousel.next).toHaveBeenCalled()
+ delete document.documentElement.ontouchstart
+ restorePointerEvents()
+ done()
+ })
+
+ Simulator.gestures.swipe(carouselEl, {
+ pos: [300, 10],
+ deltaX: -300,
+ deltaY: 0
+ })
+ })
+
+ it('should not allow pinch with touch events', done => {
+ Simulator.setType('touch')
+ clearPointerEvents()
+ document.documentElement.ontouchstart = () => {}
+
+ fixtureEl.innerHTML = '<div class="carousel" data-interval="false"></div>'
+
+ const carouselEl = fixtureEl.querySelector('.carousel')
+ const carousel = new Carousel(carouselEl)
+
+ Simulator.gestures.swipe(carouselEl, {
+ pos: [300, 10],
+ deltaX: -300,
+ deltaY: 0,
+ touches: 2
+ }, () => {
+ restorePointerEvents()
+ delete document.documentElement.ontouchstart
+ expect(carousel.touchDeltaX).toEqual(0)
+ done()
+ })
+ })
+
+ it('should call pause method on mouse over with pause equal to hover', done => {
+ fixtureEl.innerHTML = '<div class="carousel"></div>'
+
+ const carouselEl = fixtureEl.querySelector('.carousel')
+ const carousel = new Carousel(carouselEl)
+
+ spyOn(carousel, 'pause')
+
+ const mouseOverEvent = createEvent('mouseover')
+ carouselEl.dispatchEvent(mouseOverEvent)
+
+ setTimeout(() => {
+ expect(carousel.pause).toHaveBeenCalled()
+ done()
+ }, 10)
+ })
+
+ it('should call cycle on mouse out with pause equal to hover', done => {
+ fixtureEl.innerHTML = '<div class="carousel"></div>'
+
+ const carouselEl = fixtureEl.querySelector('.carousel')
+ const carousel = new Carousel(carouselEl)
+
+ spyOn(carousel, 'cycle')
+
+ const mouseOutEvent = createEvent('mouseout')
+ carouselEl.dispatchEvent(mouseOutEvent)
+
+ setTimeout(() => {
+ expect(carousel.cycle).toHaveBeenCalled()
+ done()
+ }, 10)
+ })
+ })
+
+ describe('next', () => {
+ it('should not slide if the carousel is sliding', () => {
+ fixtureEl.innerHTML = '<div></div>'
+
+ const carouselEl = fixtureEl.querySelector('div')
+ const carousel = new Carousel(carouselEl, {})
+
+ spyOn(carousel, '_slide')
+
+ carousel._isSliding = true
+ carousel.next()
+
+ expect(carousel._slide).not.toHaveBeenCalled()
+ })
+
+ it('should not fire slid when slide is prevented', done => {
+ fixtureEl.innerHTML = '<div></div>'
+
+ const carouselEl = fixtureEl.querySelector('div')
+ const carousel = new Carousel(carouselEl, {})
+ let slidEvent = false
+
+ const doneTest = () => {
+ setTimeout(() => {
+ expect(slidEvent).toEqual(false)
+ done()
+ }, 20)
+ }
+
+ carouselEl.addEventListener('slide.bs.carousel', e => {
+ e.preventDefault()
+ doneTest()
+ })
+
+ carouselEl.addEventListener('slid.bs.carousel', () => {
+ slidEvent = true
+ })
+
+ carousel.next()
+ })
+
+ it('should fire slide event with: direction, relatedTarget, from and to', done => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div class="carousel-item active">item 1</div>',
+ ' <div class="carousel-item">item 2</div>',
+ ' <div class="carousel-item">item 3</div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('#myCarousel')
+ const carousel = new Carousel(carouselEl, {})
+
+ const onSlide = e => {
+ expect(e.direction).toEqual('left')
+ expect(e.relatedTarget.classList.contains('carousel-item')).toEqual(true)
+ expect(e.from).toEqual(0)
+ expect(e.to).toEqual(1)
+
+ carouselEl.removeEventListener('slide.bs.carousel', onSlide)
+ carouselEl.addEventListener('slide.bs.carousel', onSlide2)
+
+ carousel.prev()
+ }
+
+ const onSlide2 = e => {
+ expect(e.direction).toEqual('right')
+ done()
+ }
+
+ carouselEl.addEventListener('slide.bs.carousel', onSlide)
+ carousel.next()
+ })
+
+ it('should fire slid event with: direction, relatedTarget, from and to', done => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div class="carousel-item active">item 1</div>',
+ ' <div class="carousel-item">item 2</div>',
+ ' <div class="carousel-item">item 3</div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('#myCarousel')
+ const carousel = new Carousel(carouselEl, {})
+
+ const onSlid = e => {
+ expect(e.direction).toEqual('left')
+ expect(e.relatedTarget.classList.contains('carousel-item')).toEqual(true)
+ expect(e.from).toEqual(0)
+ expect(e.to).toEqual(1)
+
+ carouselEl.removeEventListener('slid.bs.carousel', onSlid)
+ carouselEl.addEventListener('slid.bs.carousel', onSlid2)
+
+ carousel.prev()
+ }
+
+ const onSlid2 = e => {
+ expect(e.direction).toEqual('right')
+ done()
+ }
+
+ carouselEl.addEventListener('slid.bs.carousel', onSlid)
+ carousel.next()
+ })
+
+ it('should get interval from data attribute in individual item', () => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div class="carousel-item active">item 1</div>',
+ ' <div class="carousel-item" data-interval="7">item 2</div>',
+ ' <div class="carousel-item">item 3</div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('#myCarousel')
+ const carousel = new Carousel(carouselEl, {
+ interval: 1814
+ })
+
+ expect(carousel._config.interval).toEqual(1814)
+
+ carousel.next()
+
+ expect(carousel._config.interval).toEqual(7)
+ })
+
+ it('should update indicators if present', done => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <ol class="carousel-indicators">',
+ ' <li data-target="#myCarousel" data-slide-to="0" class="active"></li>',
+ ' <li id="secondIndicator" data-target="#myCarousel" data-slide-to="1"></li>',
+ ' <li data-target="#myCarousel" data-slide-to="2"></li>',
+ ' </ol>',
+ ' <div class="carousel-inner">',
+ ' <div class="carousel-item active">item 1</div>',
+ ' <div class="carousel-item" data-interval="7">item 2</div>',
+ ' <div class="carousel-item">item 3</div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('#myCarousel')
+ const secondIndicator = fixtureEl.querySelector('#secondIndicator')
+ const carousel = new Carousel(carouselEl)
+
+ carouselEl.addEventListener('slid.bs.carousel', () => {
+ expect(secondIndicator.classList.contains('active')).toEqual(true)
+ done()
+ })
+
+ carousel.next()
+ })
+ })
+
+ describe('nextWhenVisible', () => {
+ it('should not call next when the page is not visible', () => {
+ fixtureEl.innerHTML = '<div class="carousel" data-interval="false"></div>'
+
+ const carouselEl = fixtureEl.querySelector('div')
+ const carousel = new Carousel(carouselEl)
+
+ spyOn(carousel, 'next')
+
+ carousel.nextWhenVisible()
+
+ expect(carousel.next).not.toHaveBeenCalled()
+ })
+ })
+
+ describe('prev', () => {
+ it('should not slide if the carousel is sliding', () => {
+ fixtureEl.innerHTML = '<div></div>'
+
+ const carouselEl = fixtureEl.querySelector('div')
+ const carousel = new Carousel(carouselEl, {})
+
+ spyOn(carousel, '_slide')
+
+ carousel._isSliding = true
+ carousel.prev()
+
+ expect(carousel._slide).not.toHaveBeenCalled()
+ })
+ })
+
+ describe('pause', () => {
+ it('should call cycle if the carousel have carousel-item-next and carousel-item-prev class', () => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div class="carousel-item active">item 1</div>',
+ ' <div class="carousel-item carousel-item-next">item 2</div>',
+ ' <div class="carousel-item">item 3</div>',
+ ' </div>',
+ ' <div class="carousel-control-prev"></div>',
+ ' <div class="carousel-control-next"></div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('#myCarousel')
+ const carousel = new Carousel(carouselEl)
+
+ spyOn(carousel, 'cycle')
+ spyOn(window, 'clearInterval')
+
+ carousel.pause()
+
+ expect(carousel.cycle).toHaveBeenCalledWith(true)
+ expect(window.clearInterval).toHaveBeenCalled()
+ expect(carousel._isPaused).toEqual(true)
+ })
+
+ it('should not call cycle if nothing is in transition', () => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div class="carousel-item active">item 1</div>',
+ ' <div class="carousel-item">item 2</div>',
+ ' <div class="carousel-item">item 3</div>',
+ ' </div>',
+ ' <div class="carousel-control-prev"></div>',
+ ' <div class="carousel-control-next"></div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('#myCarousel')
+ const carousel = new Carousel(carouselEl)
+
+ spyOn(carousel, 'cycle')
+ spyOn(window, 'clearInterval')
+
+ carousel.pause()
+
+ expect(carousel.cycle).not.toHaveBeenCalled()
+ expect(window.clearInterval).toHaveBeenCalled()
+ expect(carousel._isPaused).toEqual(true)
+ })
+
+ it('should not set is paused at true if an event is passed', () => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div class="carousel-item active">item 1</div>',
+ ' <div class="carousel-item">item 2</div>',
+ ' <div class="carousel-item">item 3</div>',
+ ' </div>',
+ ' <div class="carousel-control-prev"></div>',
+ ' <div class="carousel-control-next"></div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('#myCarousel')
+ const carousel = new Carousel(carouselEl)
+ const event = createEvent('mouseenter')
+
+ spyOn(window, 'clearInterval')
+
+ carousel.pause(event)
+
+ expect(window.clearInterval).toHaveBeenCalled()
+ expect(carousel._isPaused).toEqual(false)
+ })
+ })
+
+ describe('cycle', () => {
+ it('should set an interval', () => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div class="carousel-item active">item 1</div>',
+ ' <div class="carousel-item">item 2</div>',
+ ' <div class="carousel-item">item 3</div>',
+ ' </div>',
+ ' <div class="carousel-control-prev"></div>',
+ ' <div class="carousel-control-next"></div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('#myCarousel')
+ const carousel = new Carousel(carouselEl)
+
+ spyOn(window, 'setInterval').and.callThrough()
+
+ carousel.cycle()
+
+ expect(window.setInterval).toHaveBeenCalled()
+ })
+
+ it('should not set interval if the carousel is paused', () => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div class="carousel-item active">item 1</div>',
+ ' <div class="carousel-item">item 2</div>',
+ ' <div class="carousel-item">item 3</div>',
+ ' </div>',
+ ' <div class="carousel-control-prev"></div>',
+ ' <div class="carousel-control-next"></div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('#myCarousel')
+ const carousel = new Carousel(carouselEl)
+
+ spyOn(window, 'setInterval').and.callThrough()
+
+ carousel._isPaused = true
+ carousel.cycle(true)
+
+ expect(window.setInterval).not.toHaveBeenCalled()
+ })
+
+ it('should clear interval if there is one', () => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div class="carousel-item active">item 1</div>',
+ ' <div class="carousel-item">item 2</div>',
+ ' <div class="carousel-item">item 3</div>',
+ ' </div>',
+ ' <div class="carousel-control-prev"></div>',
+ ' <div class="carousel-control-next"></div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('#myCarousel')
+ const carousel = new Carousel(carouselEl)
+
+ carousel._interval = setInterval(() => {}, 10)
+
+ spyOn(window, 'setInterval').and.callThrough()
+ spyOn(window, 'clearInterval').and.callThrough()
+
+ carousel.cycle()
+
+ expect(window.setInterval).toHaveBeenCalled()
+ expect(window.clearInterval).toHaveBeenCalled()
+ })
+ })
+
+ describe('to', () => {
+ it('should go directement to the provided index', done => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div id="item1" class="carousel-item active">item 1</div>',
+ ' <div class="carousel-item">item 2</div>',
+ ' <div id="item3" class="carousel-item">item 3</div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('#myCarousel')
+ const carousel = new Carousel(carouselEl, {})
+
+ expect(fixtureEl.querySelector('.active')).toEqual(fixtureEl.querySelector('#item1'))
+
+ carousel.to(2)
+
+ carouselEl.addEventListener('slid.bs.carousel', () => {
+ expect(fixtureEl.querySelector('.active')).toEqual(fixtureEl.querySelector('#item3'))
+ done()
+ })
+ })
+
+ it('should return to a previous slide if the provided index is lower than the current', done => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div class="carousel-item">item 1</div>',
+ ' <div id="item2" class="carousel-item">item 2</div>',
+ ' <div id="item3" class="carousel-item active">item 3</div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('#myCarousel')
+ const carousel = new Carousel(carouselEl, {})
+
+ expect(fixtureEl.querySelector('.active')).toEqual(fixtureEl.querySelector('#item3'))
+
+ carousel.to(1)
+
+ carouselEl.addEventListener('slid.bs.carousel', () => {
+ expect(fixtureEl.querySelector('.active')).toEqual(fixtureEl.querySelector('#item2'))
+ done()
+ })
+ })
+
+ it('should do nothing if a wrong index is provided', () => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div class="carousel-item active">item 1</div>',
+ ' <div class="carousel-item" data-interval="7">item 2</div>',
+ ' <div class="carousel-item">item 3</div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('#myCarousel')
+ const carousel = new Carousel(carouselEl, {})
+
+ const spy = spyOn(carousel, '_slide')
+
+ carousel.to(25)
+
+ expect(spy).not.toHaveBeenCalled()
+
+ spy.calls.reset()
+
+ carousel.to(-5)
+
+ expect(spy).not.toHaveBeenCalled()
+ })
+
+ it('should call pause and cycle is the provided is the same compare to the current one', () => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div class="carousel-item active">item 1</div>',
+ ' <div class="carousel-item" data-interval="7">item 2</div>',
+ ' <div class="carousel-item">item 3</div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('#myCarousel')
+ const carousel = new Carousel(carouselEl, {})
+
+ spyOn(carousel, '_slide')
+ spyOn(carousel, 'pause')
+ spyOn(carousel, 'cycle')
+
+ carousel.to(0)
+
+ expect(carousel._slide).not.toHaveBeenCalled()
+ expect(carousel.pause).toHaveBeenCalled()
+ expect(carousel.cycle).toHaveBeenCalled()
+ })
+
+ it('should wait before performing to if a slide is sliding', done => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div class="carousel-item active">item 1</div>',
+ ' <div class="carousel-item" data-interval="7">item 2</div>',
+ ' <div class="carousel-item">item 3</div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('#myCarousel')
+ const carousel = new Carousel(carouselEl, {})
+
+ spyOn(EventHandler, 'one').and.callThrough()
+ spyOn(carousel, '_slide')
+
+ carousel._isSliding = true
+ carousel.to(1)
+
+ expect(carousel._slide).not.toHaveBeenCalled()
+ expect(EventHandler.one).toHaveBeenCalled()
+
+ spyOn(carousel, 'to')
+
+ EventHandler.trigger(carouselEl, 'slid.bs.carousel')
+
+ setTimeout(() => {
+ expect(carousel.to).toHaveBeenCalledWith(1)
+ done()
+ })
+ })
+ })
+
+ describe('dispose', () => {
+ it('should destroy a carousel', () => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div class="carousel-item active">item 1</div>',
+ ' <div class="carousel-item" data-interval="7">item 2</div>',
+ ' <div class="carousel-item">item 3</div>',
+ ' </div>',
+ '</div>'
+ ].join('')
+
+ const carouselEl = fixtureEl.querySelector('#myCarousel')
+ const carousel = new Carousel(carouselEl)
+
+ spyOn(EventHandler, 'off').and.callThrough()
+
+ carousel.dispose()
+
+ expect(EventHandler.off).toHaveBeenCalled()
+ })
+ })
+
+ describe('_jQueryInterface', () => {
+ it('should create a carousel', () => {
+ fixtureEl.innerHTML = '<div></div>'
+
+ const div = fixtureEl.querySelector('div')
+
+ jQueryMock.fn.carousel = Carousel._jQueryInterface
+ jQueryMock.elements = [div]
+
+ jQueryMock.fn.carousel.call(jQueryMock)
+
+ expect(Carousel._getInstance(div)).toBeDefined()
+ })
+
+ it('should not re create a carousel', () => {
+ fixtureEl.innerHTML = '<div></div>'
+
+ const div = fixtureEl.querySelector('div')
+ const carousel = new Carousel(div)
+
+ jQueryMock.fn.carousel = Carousel._jQueryInterface
+ jQueryMock.elements = [div]
+
+ jQueryMock.fn.carousel.call(jQueryMock)
+
+ expect(Carousel._getInstance(div)).toEqual(carousel)
+ })
+
+ it('should call to if the config is a number', () => {
+ fixtureEl.innerHTML = '<div></div>'
+
+ const div = fixtureEl.querySelector('div')
+ const carousel = new Carousel(div)
+ const slideTo = 2
+
+ spyOn(carousel, 'to')
+
+ jQueryMock.fn.carousel = Carousel._jQueryInterface
+ jQueryMock.elements = [div]
+
+ jQueryMock.fn.carousel.call(jQueryMock, slideTo)
+
+ expect(carousel.to).toHaveBeenCalledWith(slideTo)
+ })
+
+ it('should throw error on undefined method', () => {
+ fixtureEl.innerHTML = '<div></div>'
+
+ const div = fixtureEl.querySelector('div')
+ const action = 'undefinedMethod'
+
+ jQueryMock.fn.carousel = Carousel._jQueryInterface
+ jQueryMock.elements = [div]
+
+ try {
+ jQueryMock.fn.carousel.call(jQueryMock, action)
+ } catch (error) {
+ expect(error.message).toEqual(`No method named "${action}"`)
+ }
+ })
+ })
+
+ describe('data-api', () => {
+ it('should init carousels with data-ride="carousel" on load', () => {
+ fixtureEl.innerHTML = '<div data-ride="carousel"></div>'
+
+ const carouselEl = fixtureEl.querySelector('div')
+ const loadEvent = createEvent('load')
+
+ window.dispatchEvent(loadEvent)
+
+ expect(Carousel._getInstance(carouselEl)).toBeDefined()
+ })
+
+ it('should create carousel and go to the next slide on click', done => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div class="carousel-item active">item 1</div>',
+ ' <div id="item2" class="carousel-item">item 2</div>',
+ ' <div class="carousel-item">item 3</div>',
+ ' </div>',
+ ' <div class="carousel-control-prev" data-target="#myCarousel" role="button" data-slide="prev"></div>',
+ ' <div id="next" class="carousel-control-next" data-target="#myCarousel" role="button" data-slide="next"></div>',
+ '</div>'
+ ].join('')
+
+ const next = fixtureEl.querySelector('#next')
+ const item2 = fixtureEl.querySelector('#item2')
+
+ next.click()
+
+ setTimeout(() => {
+ expect(item2.classList.contains('active')).toEqual(true)
+ done()
+ }, 10)
+ })
+
+ it('should create carousel and go to the next slide on click with data-slide-to', done => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div class="carousel-item active">item 1</div>',
+ ' <div id="item2" class="carousel-item">item 2</div>',
+ ' <div class="carousel-item">item 3</div>',
+ ' </div>',
+ ' <div id="next" data-target="#myCarousel" data-slide-to="1"></div>',
+ '</div>'
+ ].join('')
+
+ const next = fixtureEl.querySelector('#next')
+ const item2 = fixtureEl.querySelector('#item2')
+
+ next.click()
+
+ setTimeout(() => {
+ expect(item2.classList.contains('active')).toEqual(true)
+ done()
+ }, 10)
+ })
+
+ it('should do nothing if no selector on click on arrows', () => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="carousel slide">',
+ ' <div class="carousel-inner">',
+ ' <div class="carousel-item active">item 1</div>',
+ ' <div class="carousel-item">item 2</div>',
+ ' <div class="carousel-item">item 3</div>',
+ ' </div>',
+ ' <div class="carousel-control-prev" data-target="#myCarousel" role="button" data-slide="prev"></div>',
+ ' <div id="next" class="carousel-control-next" role="button" data-slide="next"></div>',
+ '</div>'
+ ].join('')
+
+ const next = fixtureEl.querySelector('#next')
+
+ next.click()
+
+ expect().nothing()
+ })
+
+ it('should do nothing if no carousel class on click on arrows', () => {
+ fixtureEl.innerHTML = [
+ '<div id="myCarousel" class="slide">',
+ ' <div class="carousel-inner">',
+ ' <div class="carousel-item active">item 1</div>',
+ ' <div id="item2" class="carousel-item">item 2</div>',
+ ' <div class="carousel-item">item 3</div>',
+ ' </div>',
+ ' <div class="carousel-control-prev" data-target="#myCarousel" role="button" data-slide="prev"></div>',
+ ' <div id="next" class="carousel-control-next" data-target="#myCarousel" role="button" data-slide="next"></div>',
+ '</div>'
+ ].join('')
+
+ const next = fixtureEl.querySelector('#next')
+
+ next.click()
+
+ expect().nothing()
+ })
+ })
+})
generated by cgit v1.2.3 (git 2.25.1) at 2026-06-06 07:54:41 +0000