Files F120560805

collapse.js
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Created: Sat, Jul 5, 05:54

collapse.js
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	/**
	* --------------------------------------------------------------------------
	* Bootstrap (v5.2.3): collapse.js
	* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
	* --------------------------------------------------------------------------
	*/

	import {
	defineJQueryPlugin,
	getElement,
	getElementFromSelector,
	getSelectorFromElement,
	reflow
	} from './util/index'
	import EventHandler from './dom/event-handler'
	import SelectorEngine from './dom/selector-engine'
	import BaseComponent from './base-component'

	/**
	* Constants
	*/

	const NAME = 'collapse'
	const DATA_KEY = 'bs.collapse'
	const EVENT_KEY = `.${DATA_KEY}`
	const DATA_API_KEY = '.data-api'

	const EVENT_SHOW = `show${EVENT_KEY}`
	const EVENT_SHOWN = `shown${EVENT_KEY}`
	const EVENT_HIDE = `hide${EVENT_KEY}`
	const EVENT_HIDDEN = `hidden${EVENT_KEY}`
	const EVENT_CLICK_DATA_API = `click${EVENT_KEY}${DATA_API_KEY}`

	const CLASS_NAME_SHOW = 'show'
	const CLASS_NAME_COLLAPSE = 'collapse'
	const CLASS_NAME_COLLAPSING = 'collapsing'
	const CLASS_NAME_COLLAPSED = 'collapsed'
	const CLASS_NAME_DEEPER_CHILDREN = `:scope .${CLASS_NAME_COLLAPSE} .${CLASS_NAME_COLLAPSE}`
	const CLASS_NAME_HORIZONTAL = 'collapse-horizontal'

	const WIDTH = 'width'
	const HEIGHT = 'height'

	const SELECTOR_ACTIVES = '.collapse.show, .collapse.collapsing'
	const SELECTOR_DATA_TOGGLE = '[data-bs-toggle="collapse"]'

	const Default = {
	parent: null,
	toggle: true
	}

	const DefaultType = {
	parent: '(null\|element)',
	toggle: 'boolean'
	}

	/**
	* Class definition
	*/

	class Collapse extends BaseComponent {
	constructor(element, config) {
	super(element, config)

	this._isTransitioning = false
	this._triggerArray = []

	const toggleList = SelectorEngine.find(SELECTOR_DATA_TOGGLE)

	for (const elem of toggleList) {
	const selector = getSelectorFromElement(elem)
	const filterElement = SelectorEngine.find(selector)
	.filter(foundElement => foundElement === this._element)

	if (selector !== null && filterElement.length) {
	this._triggerArray.push(elem)
	}
	}

	this._initializeChildren()

	if (!this._config.parent) {
	this._addAriaAndCollapsedClass(this._triggerArray, this._isShown())
	}

	if (this._config.toggle) {
	this.toggle()
	}
	}

	// Getters
	static get Default() {
	return Default
	}

	static get DefaultType() {
	return DefaultType
	}

	static get NAME() {
	return NAME
	}

	// Public
	toggle() {
	if (this._isShown()) {
	this.hide()
	} else {
	this.show()
	}
	}

	show() {
	if (this._isTransitioning \|\| this._isShown()) {
	return
	}

	let activeChildren = []

	// find active children
	if (this._config.parent) {
	activeChildren = this._getFirstLevelChildren(SELECTOR_ACTIVES)
	.filter(element => element !== this._element)
	.map(element => Collapse.getOrCreateInstance(element, { toggle: false }))
	}

	if (activeChildren.length && activeChildren[0]._isTransitioning) {
	return
	}

	const startEvent = EventHandler.trigger(this._element, EVENT_SHOW)
	if (startEvent.defaultPrevented) {
	return
	}

	for (const activeInstance of activeChildren) {
	activeInstance.hide()
	}

	const dimension = this._getDimension()

	this._element.classList.remove(CLASS_NAME_COLLAPSE)
	this._element.classList.add(CLASS_NAME_COLLAPSING)

	this._element.style[dimension] = 0

	this._addAriaAndCollapsedClass(this._triggerArray, true)
	this._isTransitioning = true

	const complete = () => {
	this._isTransitioning = false

	this._element.classList.remove(CLASS_NAME_COLLAPSING)
	this._element.classList.add(CLASS_NAME_COLLAPSE, CLASS_NAME_SHOW)

	this._element.style[dimension] = ''

	EventHandler.trigger(this._element, EVENT_SHOWN)
	}

	const capitalizedDimension = dimension[0].toUpperCase() + dimension.slice(1)
	const scrollSize = `scroll${capitalizedDimension}`

	this._queueCallback(complete, this._element, true)
	this._element.style[dimension] = `${this._element[scrollSize]}px`
	}

	hide() {
	if (this._isTransitioning \|\| !this._isShown()) {
	return
	}

	const startEvent = EventHandler.trigger(this._element, EVENT_HIDE)
	if (startEvent.defaultPrevented) {
	return
	}

	const dimension = this._getDimension()

	this._element.style[dimension] = `${this._element.getBoundingClientRect()[dimension]}px`

	reflow(this._element)

	this._element.classList.add(CLASS_NAME_COLLAPSING)
	this._element.classList.remove(CLASS_NAME_COLLAPSE, CLASS_NAME_SHOW)

	for (const trigger of this._triggerArray) {
	const element = getElementFromSelector(trigger)

	if (element && !this._isShown(element)) {
	this._addAriaAndCollapsedClass([trigger], false)
	}
	}

	this._isTransitioning = true

	const complete = () => {
	this._isTransitioning = false
	this._element.classList.remove(CLASS_NAME_COLLAPSING)
	this._element.classList.add(CLASS_NAME_COLLAPSE)
	EventHandler.trigger(this._element, EVENT_HIDDEN)
	}

	this._element.style[dimension] = ''

	this._queueCallback(complete, this._element, true)
	}

	_isShown(element = this._element) {
	return element.classList.contains(CLASS_NAME_SHOW)
	}

	// Private
	_configAfterMerge(config) {
	config.toggle = Boolean(config.toggle) // Coerce string values
	config.parent = getElement(config.parent)
	return config
	}

	_getDimension() {
	return this._element.classList.contains(CLASS_NAME_HORIZONTAL) ? WIDTH : HEIGHT
	}

	_initializeChildren() {
	if (!this._config.parent) {
	return
	}

	const children = this._getFirstLevelChildren(SELECTOR_DATA_TOGGLE)

	for (const element of children) {
	const selected = getElementFromSelector(element)

	if (selected) {
	this._addAriaAndCollapsedClass([element], this._isShown(selected))
	}
	}
	}

	_getFirstLevelChildren(selector) {
	const children = SelectorEngine.find(CLASS_NAME_DEEPER_CHILDREN, this._config.parent)
	// remove children if greater depth
	return SelectorEngine.find(selector, this._config.parent).filter(element => !children.includes(element))
	}

	_addAriaAndCollapsedClass(triggerArray, isOpen) {
	if (!triggerArray.length) {
	return
	}

	for (const element of triggerArray) {
	element.classList.toggle(CLASS_NAME_COLLAPSED, !isOpen)
	element.setAttribute('aria-expanded', isOpen)
	}
	}

	// Static
	static jQueryInterface(config) {
	const _config = {}
	if (typeof config === 'string' && /show\|hide/.test(config)) {
	_config.toggle = false
	}

	return this.each(function () {
	const data = Collapse.getOrCreateInstance(this, _config)

	if (typeof config === 'string') {
	if (typeof data[config] === 'undefined') {
	throw new TypeError(`No method named "${config}"`)
	}

	data[config]()
	}
	})
	}
	}

	/**
	* Data API implementation
	*/

	EventHandler.on(document, EVENT_CLICK_DATA_API, SELECTOR_DATA_TOGGLE, function (event) {
	// preventDefault only for <a> elements (which change the URL) not inside the collapsible element
	if (event.target.tagName === 'A' \|\| (event.delegateTarget && event.delegateTarget.tagName === 'A')) {
	event.preventDefault()
	}

	const selector = getSelectorFromElement(this)
	const selectorElements = SelectorEngine.find(selector)

	for (const element of selectorElements) {
	Collapse.getOrCreateInstance(element, { toggle: false }).toggle()
	}
	})

	/**
	* jQuery
	*/

	defineJQueryPlugin(Collapse)

	export default Collapse

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