mirror of
https://github.com/twbs/bootstrap.git
synced 2025-08-08 22:56:46 +02:00
carousel -> es6
This commit is contained in:
fat
@@ -49,16 +49,14 @@ const Alert = (($) => {
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class Alert {
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constructor(element) {
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if (element) {
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this.element = element
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}
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this._element = element
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}
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// public
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close(element) {
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element = element || this.element
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element = element || this._element
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let rootElement = this._getRootElement(element)
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let customEvent = this._triggerCloseEvent(rootElement)
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@@ -49,24 +49,24 @@ const Button = (($) => {
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class Button {
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constructor(element) {
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this.element = element
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this._element = element
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}
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// public
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toggle() {
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let triggerChangeEvent = true
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let rootElement = $(this.element).closest(
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let rootElement = $(this._element).closest(
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Selector.DATA_TOGGLE
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)[0]
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if (rootElement) {
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let input = $(this.element).find(Selector.INPUT)[0]
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let input = $(this._element).find(Selector.INPUT)[0]
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if (input) {
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if (input.type === 'radio') {
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if (input.checked &&
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$(this.element).hasClass(ClassName.ACTIVE)) {
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$(this._element).hasClass(ClassName.ACTIVE)) {
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triggerChangeEvent = false
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} else {
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@@ -79,17 +79,17 @@ const Button = (($) => {
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}
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if (triggerChangeEvent) {
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input.checked = !$(this.element).hasClass(ClassName.ACTIVE)
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$(this.element).trigger('change')
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input.checked = !$(this._element).hasClass(ClassName.ACTIVE)
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$(this._element).trigger('change')
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}
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}
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} else {
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this.element.setAttribute('aria-pressed',
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!$(this.element).hasClass(ClassName.ACTIVE))
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this._element.setAttribute('aria-pressed',
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!$(this._element).hasClass(ClassName.ACTIVE))
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}
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if (triggerChangeEvent) {
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$(this.element).toggleClass(ClassName.ACTIVE)
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$(this._element).toggleClass(ClassName.ACTIVE)
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}
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}
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426
js/src/carousel.js
Normal file
426
js/src/carousel.js
Normal file
@@ -0,0 +1,426 @@
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import Util from './util'
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/**
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* --------------------------------------------------------------------------
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* Bootstrap (v4.0.0): carousel.js
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* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
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* --------------------------------------------------------------------------
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*/
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const Carousel = (($) => {
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/**
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* ------------------------------------------------------------------------
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* Constants
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* ------------------------------------------------------------------------
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*/
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const NAME = 'carousel'
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const VERSION = '4.0.0'
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const DATA_KEY = 'bs.carousel'
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const JQUERY_NO_CONFLICT = $.fn[NAME]
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const TRANSITION_DURATION = 600
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const Defaults = {
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interval : 5000,
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keyboard : true,
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slide : false,
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pause : 'hover',
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wrap : true
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}
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const Direction = {
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NEXT : 'next',
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PREVIOUS : 'prev'
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}
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const Event = {
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SLIDE : 'slide.bs.carousel',
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SLID : 'slid.bs.carousel',
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CLICK : 'click.bs.carousel.data-api',
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LOAD : 'load'
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}
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const ClassName = {
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CAROUSEL : 'carousel',
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ACTIVE : 'active',
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SLIDE : 'slide',
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RIGHT : 'right',
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LEFT : 'left',
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ITEM : 'carousel-item'
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}
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const Selector = {
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ACTIVE : '.active',
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ACTIVE_ITEM : '.active.carousel-item',
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ITEM : '.carousel-item',
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NEXT_PREV : '.next, .prev',
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INDICATORS : '.carousel-indicators',
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DATA_SLIDE : '[data-slide], [data-slide-to]',
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DATA_RIDE : '[data-ride="carousel"]'
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}
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/**
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* ------------------------------------------------------------------------
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* Class Definition
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* ------------------------------------------------------------------------
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*/
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class Carousel {
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constructor(element, config) {
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this._items = null
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this._interval = null
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this._activeElement = null
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this._isPaused = false
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this._isSliding = false
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this._config = config
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this._element = $(element)[0]
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this._indicatorsElement = $(this._element).find(Selector.INDICATORS)[0]
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this._addEventListeners()
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}
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// public
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next() {
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if (!this._isSliding) {
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this._slide(Direction.NEXT)
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}
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}
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prev() {
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if (!this._isSliding) {
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this._slide(Direction.PREVIOUS)
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}
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}
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pause(event) {
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if (!event) {
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this._isPaused = true
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}
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if ($(this._element).find(Selector.NEXT_PREV)[0] &&
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Util.supportsTransitionEnd()) {
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Util.triggerTransitionEnd(this._element)
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this.cycle(true)
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}
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clearInterval(this._interval)
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this._interval = null
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}
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cycle(event) {
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if (!event) {
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this._isPaused = false
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}
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if (this._interval) {
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clearInterval(this._interval)
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this._interval = null
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}
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if (this._config.interval && !this._isPaused) {
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this._interval = setInterval(
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this.next.bind(this), this._config.interval
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)
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}
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}
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to(index) {
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this._activeElement = $(this._element).find(Selector.ACTIVE_ITEM)[0]
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let activeIndex = this._getItemIndex(this._activeElement)
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if (index > (this._items.length - 1) || index < 0) {
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return
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}
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if (this._isSliding) {
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$(this._element).one(Event.SLID, () => this.to(index))
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return
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}
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if (activeIndex == index) {
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this.pause()
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this.cycle()
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return
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}
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var direction = index > activeIndex ?
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Direction.NEXT :
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Direction.PREVIOUS
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this._slide(direction, this._items[index])
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}
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// private
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_addEventListeners() {
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if (this._config.keyboard) {
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$(this._element)
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.on('keydown.bs.carousel', this._keydown.bind(this))
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}
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if (this._config.pause == 'hover' &&
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!('ontouchstart' in document.documentElement)) {
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$(this._element)
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.on('mouseenter.bs.carousel', this.pause.bind(this))
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.on('mouseleave.bs.carousel', this.cycle.bind(this))
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}
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}
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_keydown(event) {
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event.preventDefault()
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if (/input|textarea/i.test(event.target.tagName)) return
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switch (event.which) {
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case 37: this.prev(); break
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case 39: this.next(); break
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default: return
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}
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}
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_getItemIndex(element) {
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this._items = $.makeArray($(element).parent().find(Selector.ITEM))
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return this._items.indexOf(element)
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}
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_getItemByDirection(direction, activeElement) {
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let isNextDirection = direction === Direction.NEXT
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let isPrevDirection = direction === Direction.PREVIOUS
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let activeIndex = this._getItemIndex(activeElement)
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let lastItemIndex = (this._items.length - 1)
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let isGoingToWrap = (isPrevDirection && activeIndex === 0) ||
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(isNextDirection && activeIndex == lastItemIndex)
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if (isGoingToWrap && !this._config.wrap) {
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return activeElement
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}
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let delta = direction == Direction.PREVIOUS ? -1 : 1
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let itemIndex = (activeIndex + delta) % this._items.length
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return itemIndex === -1 ?
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this._items[this._items.length - 1] : this._items[itemIndex]
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}
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_triggerSlideEvent(relatedTarget, directionalClassname) {
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let slideEvent = $.Event(Event.SLIDE, {
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relatedTarget: relatedTarget,
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direction: directionalClassname
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})
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$(this._element).trigger(slideEvent)
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return slideEvent
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}
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_setActiveIndicatorElement(element) {
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if (this._indicatorsElement) {
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$(this._indicatorsElement)
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.find(Selector.ACTIVE)
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.removeClass(ClassName.ACTIVE)
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let nextIndicator = this._indicatorsElement.children[
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this._getItemIndex(element)
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]
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if (nextIndicator) {
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$(nextIndicator).addClass(ClassName.ACTIVE)
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}
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}
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}
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_slide(direction, element) {
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let activeElement = $(this._element).find(Selector.ACTIVE_ITEM)[0]
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let nextElement = element || activeElement &&
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this._getItemByDirection(direction, activeElement)
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let isCycling = !!this._interval
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let directionalClassName = direction == Direction.NEXT ?
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ClassName.LEFT :
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ClassName.RIGHT
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if (nextElement && $(nextElement).hasClass(ClassName.ACTIVE)) {
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this._isSliding = false
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return
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}
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let slideEvent = this._triggerSlideEvent(nextElement, directionalClassName)
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if (slideEvent.isDefaultPrevented()) {
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return
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}
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if (!activeElement || !nextElement) {
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// some weirdness is happening, so we bail
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return
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}
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this._isSliding = true
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if (isCycling) {
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this.pause()
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}
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this._setActiveIndicatorElement(nextElement)
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var slidEvent = $.Event(Event.SLID, {
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relatedTarget: nextElement,
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direction: directionalClassName
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})
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if (Util.supportsTransitionEnd() &&
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$(this._element).hasClass(ClassName.SLIDE)) {
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$(nextElement).addClass(direction)
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Util.reflow(nextElement)
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$(activeElement).addClass(directionalClassName)
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$(nextElement).addClass(directionalClassName)
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$(activeElement)
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.one(Util.TRANSITION_END, () => {
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$(nextElement)
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.removeClass(directionalClassName)
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.removeClass(direction)
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$(nextElement).addClass(ClassName.ACTIVE)
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$(activeElement)
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.removeClass(ClassName.ACTIVE)
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.removeClass(direction)
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.removeClass(directionalClassName)
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this._isSliding = false
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setTimeout(() => $(this._element).trigger(slidEvent), 0)
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})
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.emulateTransitionEnd(TRANSITION_DURATION)
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} else {
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$(activeElement).removeClass(ClassName.ACTIVE)
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$(nextElement).addClass(ClassName.ACTIVE)
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this._isSliding = false
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$(this._element).trigger(slidEvent)
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}
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if (isCycling) {
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this.cycle()
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}
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}
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// static
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static _jQueryInterface(config) {
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return this.each(function () {
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let data = $(this).data(DATA_KEY)
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let _config = $.extend({}, Defaults, $(this).data())
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if (typeof config === 'object') {
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$.extend(_config, config)
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}
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let action = typeof config === 'string' ? config : _config.slide
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if (!data) {
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data = new Carousel(this, _config)
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$(this).data(DATA_KEY, data)
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}
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if (typeof config == 'number') {
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data.to(config)
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} else if (action) {
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data[action]()
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} else if (_config.interval) {
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data.pause()
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data.cycle()
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}
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})
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}
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static _dataApiClickHandler(event) {
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let selector = Util.getSelectorFromElement(this)
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if (!selector) {
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return
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}
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let target = $(selector)[0]
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if (!target || !$(target).hasClass(ClassName.CAROUSEL)) {
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return
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}
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let config = $.extend({}, $(target).data(), $(this).data())
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let slideIndex = this.getAttribute('data-slide-to')
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if (slideIndex) {
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config.interval = false
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}
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Carousel._jQueryInterface.call($(target), config)
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if (slideIndex) {
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$(target).data(DATA_KEY).to(slideIndex)
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}
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event.preventDefault()
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}
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}
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/**
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* ------------------------------------------------------------------------
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* Data Api implementation
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* ------------------------------------------------------------------------
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*/
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$(document)
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.on(Event.CLICK, Selector.DATA_SLIDE, Carousel._dataApiClickHandler)
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$(window).on(Event.LOAD, function () {
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$(Selector.DATA_RIDE).each(function () {
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let $carousel = $(this)
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Carousel._jQueryInterface.call($carousel, $carousel.data())
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})
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})
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/**
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* ------------------------------------------------------------------------
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* jQuery
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* ------------------------------------------------------------------------
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*/
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$.fn[NAME] = Carousel._jQueryInterface
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$.fn[NAME].Constructor = Carousel
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$.fn[NAME].noConflict = function () {
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$.fn[NAME] = JQUERY_NO_CONFLICT
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return Carousel._jQueryInterface
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}
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return Carousel
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})(jQuery)
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export default Carousel
|
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@@ -60,7 +60,7 @@ const Util = (($) => {
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setTimeout(() => {
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if (!called) {
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$(this).trigger(transition.end)
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Util.triggerTransitionEnd(this)
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}
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}, duration)
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@@ -109,6 +109,10 @@ const Util = (($) => {
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new Function('bs', 'return bs')(element.offsetHeight)
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},
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triggerTransitionEnd(element) {
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$(element).trigger(transition.end)
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},
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supportsTransitionEnd() {
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return !!transition
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}
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Reference in New Issue
Block a user