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import Util from './util'
/**
* --------------------------------------------------------------------------
* Bootstrap (v4.0.0-alpha.2): collapse.js
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
* --------------------------------------------------------------------------
*/
const Collapse = (($) => {
/**
* ------------------------------------------------------------------------
* Constants
* ------------------------------------------------------------------------
*/
const NAME = 'collapse'
const VERSION = '4.0.0-alpha'
const DATA_KEY = 'bs.collapse'
const EVENT_KEY = `.${DATA_KEY}`
const DATA_API_KEY = '.data-api'
const JQUERY_NO_CONFLICT = $.fn[NAME]
const TRANSITION_DURATION = 600
const Default = {
toggle : true,
parent : ''
}
const DefaultType = {
toggle : 'boolean',
parent : 'string'
}
const Event = {
SHOW : `show${EVENT_KEY}`,
SHOWN : `shown${EVENT_KEY}`,
HIDE : `hide${EVENT_KEY}`,
HIDDEN : `hidden${EVENT_KEY}`,
CLICK_DATA_API : `click${EVENT_KEY}${DATA_API_KEY}`
}
const ClassName = {
IN : 'in',
COLLAPSE : 'collapse',
COLLAPSING : 'collapsing',
COLLAPSED : 'collapsed'
}
const Dimension = {
WIDTH : 'width',
HEIGHT : 'height'
}
const Selector = {
ACTIVES : '.panel > .in, .panel > .collapsing',
DATA_TOGGLE : '[data-toggle="collapse"]'
}
/**
* ------------------------------------------------------------------------
* Class Definition
* ------------------------------------------------------------------------
*/
class Collapse {
constructor(element, config) {
this._isTransitioning = false
this._element = element
this._config = this._getConfig(config)
this._triggerArray = $.makeArray($(
`[data-toggle="collapse"][href="#${element.id}"],` +
`[data-toggle="collapse"][data-target="#${element.id}"]`
))
this._parent = this._config.parent ? this._getParent() : null
if (!this._config.parent) {
this._addAriaAndCollapsedClass(this._element, this._triggerArray)
}
if (this._config.toggle) {
this.toggle()
}
}
// getters
static get VERSION() {
return VERSION
}
static get Default() {
return Default
}
// public
toggle() {
if ($(this._element).hasClass(ClassName.IN)) {
this.hide()
} else {
this.show()
}
}
show() {
if (this._isTransitioning ||
$(this._element).hasClass(ClassName.IN)) {
return
}
let actives
let activesData
if (this._parent) {
actives = $.makeArray($(Selector.ACTIVES))
if (!actives.length) {
actives = null
}
}
if (actives) {
activesData = $(actives).data(DATA_KEY)
if (activesData && activesData._isTransitioning) {
return
}
}
let startEvent = $.Event(Event.SHOW)
$(this._element).trigger(startEvent)
if (startEvent.isDefaultPrevented()) {
return
}
if (actives) {
Collapse._jQueryInterface.call($(actives), 'hide')
if (!activesData) {
$(actives).data(DATA_KEY, null)
}
}
let dimension = this._getDimension()
$(this._element)
.removeClass(ClassName.COLLAPSE)
.addClass(ClassName.COLLAPSING)
this._element.style[dimension] = 0
this._element.setAttribute('aria-expanded', true)
if (this._triggerArray.length) {
$(this._triggerArray)
.removeClass(ClassName.COLLAPSED)
.attr('aria-expanded', true)
}
this.setTransitioning(true)
let complete = () => {
$(this._element)
.removeClass(ClassName.COLLAPSING)
.addClass(ClassName.COLLAPSE)
.addClass(ClassName.IN)
this._element.style[dimension] = ''
this.setTransitioning(false)
$(this._element).trigger(Event.SHOWN)
}
if (!Util.supportsTransitionEnd()) {
complete()
return
}
let capitalizedDimension = dimension[0].toUpperCase() + dimension.slice(1)
let scrollSize = `scroll${capitalizedDimension}`
$(this._element)
.one(Util.TRANSITION_END, complete)
.emulateTransitionEnd(TRANSITION_DURATION)
this._element.style[dimension] = `${this._element[scrollSize]}px`
}
hide() {
if (this._isTransitioning ||
!$(this._element).hasClass(ClassName.IN)) {
return
}
let startEvent = $.Event(Event.HIDE)
$(this._element).trigger(startEvent)
if (startEvent.isDefaultPrevented()) {
return
}
let dimension = this._getDimension()
let offsetDimension = dimension === Dimension.WIDTH ?
'offsetWidth' : 'offsetHeight'
this._element.style[dimension] = `${this._element[offsetDimension]}px`
Util.reflow(this._element)
$(this._element)
.addClass(ClassName.COLLAPSING)
.removeClass(ClassName.COLLAPSE)
.removeClass(ClassName.IN)
this._element.setAttribute('aria-expanded', false)
if (this._triggerArray.length) {
$(this._triggerArray)
.addClass(ClassName.COLLAPSED)
.attr('aria-expanded', false)
}
this.setTransitioning(true)
let complete = () => {
this.setTransitioning(false)
$(this._element)
.removeClass(ClassName.COLLAPSING)
.addClass(ClassName.COLLAPSE)
.trigger(Event.HIDDEN)
}
this._element.style[dimension] = 0
if (!Util.supportsTransitionEnd()) {
complete()
return
}
$(this._element)
.one(Util.TRANSITION_END, complete)
.emulateTransitionEnd(TRANSITION_DURATION)
}
setTransitioning(isTransitioning) {
this._isTransitioning = isTransitioning
}
dispose() {
$.removeData(this._element, DATA_KEY)
this._config = null
this._parent = null
this._element = null
this._triggerArray = null
this._isTransitioning = null
}
// private
_getConfig(config) {
config = $.extend({}, Default, config)
config.toggle = Boolean(config.toggle) // coerce string values
Util.typeCheckConfig(NAME, config, DefaultType)
return config
}
_getDimension() {
let hasWidth = $(this._element).hasClass(Dimension.WIDTH)
return hasWidth ? Dimension.WIDTH : Dimension.HEIGHT
}
_getParent() {
let parent = $(this._config.parent)[0]
let selector =
`[data-toggle="collapse"][data-parent="${this._config.parent}"]`
$(parent).find(selector).each((i, element) => {
this._addAriaAndCollapsedClass(
Collapse._getTargetFromElement(element),
[element]
)
})
return parent
}
_addAriaAndCollapsedClass(element, triggerArray) {
if (element) {
let isOpen = $(element).hasClass(ClassName.IN)
element.setAttribute('aria-expanded', isOpen)
if (triggerArray.length) {
$(triggerArray)
.toggleClass(ClassName.COLLAPSED, !isOpen)
.attr('aria-expanded', isOpen)
}
}
}
// static
static _getTargetFromElement(element) {
let selector = Util.getSelectorFromElement(element)
return selector ? $(selector)[0] : null
}
static _jQueryInterface(config) {
return this.each(function () {
let $this = $(this)
let data = $this.data(DATA_KEY)
let _config = $.extend(
{},
Default,
$this.data(),
typeof config === 'object' && config
)
if (!data && _config.toggle && /show|hide/.test(config)) {
_config.toggle = false
}
if (!data) {
data = new Collapse(this, _config)
$this.data(DATA_KEY, data)
}
if (typeof config === 'string') {
if (data[config] === undefined) {
throw new Error(`No method named "${config}"`)
}
data[config]()
}
})
}
}
/**
* ------------------------------------------------------------------------
* Data Api implementation
* ------------------------------------------------------------------------
*/
$(document).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {
event.preventDefault()
let target = Collapse._getTargetFromElement(this)
let data = $(target).data(DATA_KEY)
let config = data ? 'toggle' : $(this).data()
Collapse._jQueryInterface.call($(target), config)
})
/**
* ------------------------------------------------------------------------
* jQuery
* ------------------------------------------------------------------------
*/
$.fn[NAME] = Collapse._jQueryInterface
$.fn[NAME].Constructor = Collapse
$.fn[NAME].noConflict = function () {
$.fn[NAME] = JQUERY_NO_CONFLICT
return Collapse._jQueryInterface
}
return Collapse
})(jQuery)
export default Collapse
|