collapse.js 10.70 KiB
import $ from 'jquery'
import Util from './util'
/**
 * --------------------------------------------------------------------------
 * Bootstrap (v4.1.2): collapse.js
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 * --------------------------------------------------------------------------
 */
const Collapse = (($) => {
  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
  const NAME                = 'collapse'
  const VERSION             = '4.1.2'
  const DATA_KEY            = 'bs.collapse'
  const EVENT_KEY           = `.${DATA_KEY}`
  const DATA_API_KEY        = '.data-api'
  const JQUERY_NO_CONFLICT  = $.fn[NAME]
  const Default = {
    toggle : true,
    parent : ''
  const DefaultType = {
    toggle : 'boolean',
    parent : '(string|element)'
  const Event = {
    SHOW           : `show${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 = {
    SHOW       : 'show',
    COLLAPSE   : 'collapse',
    COLLAPSING : 'collapsing',
    COLLAPSED  : 'collapsed'
  const Dimension = {
    WIDTH  : 'width',
    HEIGHT : 'height'
  const Selector = {
    ACTIVES     : '.show, .collapsing',
    DATA_TOGGLE : '[data-toggle="collapse"]'
  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
  class Collapse {
    constructor(element, config) {
      this._isTransitioning = false
      this._element         = element
      this._config          = this._getConfig(config)
7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
this._triggerArray = $.makeArray(document.querySelectorAll( `[data-toggle="collapse"][href="#${element.id}"],` + `[data-toggle="collapse"][data-target="#${element.id}"]` )) const toggleList = [].slice.call(document.querySelectorAll(Selector.DATA_TOGGLE)) for (let i = 0, len = toggleList.length; i < len; i++) { const elem = toggleList[i] const selector = Util.getSelectorFromElement(elem) const filterElement = [].slice.call(document.querySelectorAll(selector)) .filter((foundElem) => foundElem === element) if (selector !== null && filterElement.length > 0) { this._selector = selector this._triggerArray.push(elem) } } this._parent = this._config.parent ? this._getParent() : null if (!this._config.parent) { this._addAriaAndCollapsedClass(this._element, this._triggerArray) } if (this._config.toggle) { this.toggle() } } // Getters static get VERSION() { return VERSION } static get Default() { return Default } // Public toggle() { if ($(this._element).hasClass(ClassName.SHOW)) { this.hide() } else { this.show() } } show() { if (this._isTransitioning || $(this._element).hasClass(ClassName.SHOW)) { return } let actives let activesData if (this._parent) { actives = [].slice.call(this._parent.querySelectorAll(Selector.ACTIVES)) .filter((elem) => elem.getAttribute('data-parent') === this._config.parent) if (actives.length === 0) { actives = null } } if (actives) { activesData = $(actives).not(this._selector).data(DATA_KEY) if (activesData && activesData._isTransitioning) { return
141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210
} } const startEvent = $.Event(Event.SHOW) $(this._element).trigger(startEvent) if (startEvent.isDefaultPrevented()) { return } if (actives) { Collapse._jQueryInterface.call($(actives).not(this._selector), 'hide') if (!activesData) { $(actives).data(DATA_KEY, null) } } const dimension = this._getDimension() $(this._element) .removeClass(ClassName.COLLAPSE) .addClass(ClassName.COLLAPSING) this._element.style[dimension] = 0 if (this._triggerArray.length) { $(this._triggerArray) .removeClass(ClassName.COLLAPSED) .attr('aria-expanded', true) } this.setTransitioning(true) const complete = () => { $(this._element) .removeClass(ClassName.COLLAPSING) .addClass(ClassName.COLLAPSE) .addClass(ClassName.SHOW) this._element.style[dimension] = '' this.setTransitioning(false) $(this._element).trigger(Event.SHOWN) } const capitalizedDimension = dimension[0].toUpperCase() + dimension.slice(1) const scrollSize = `scroll${capitalizedDimension}` const transitionDuration = Util.getTransitionDurationFromElement(this._element) $(this._element) .one(Util.TRANSITION_END, complete) .emulateTransitionEnd(transitionDuration) this._element.style[dimension] = `${this._element[scrollSize]}px` } hide() { if (this._isTransitioning || !$(this._element).hasClass(ClassName.SHOW)) { return } const startEvent = $.Event(Event.HIDE) $(this._element).trigger(startEvent) if (startEvent.isDefaultPrevented()) { return } const dimension = this._getDimension()
211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280
this._element.style[dimension] = `${this._element.getBoundingClientRect()[dimension]}px` Util.reflow(this._element) $(this._element) .addClass(ClassName.COLLAPSING) .removeClass(ClassName.COLLAPSE) .removeClass(ClassName.SHOW) const triggerArrayLength = this._triggerArray.length if (triggerArrayLength > 0) { for (let i = 0; i < triggerArrayLength; i++) { const trigger = this._triggerArray[i] const selector = Util.getSelectorFromElement(trigger) if (selector !== null) { const $elem = $([].slice.call(document.querySelectorAll(selector))) if (!$elem.hasClass(ClassName.SHOW)) { $(trigger).addClass(ClassName.COLLAPSED) .attr('aria-expanded', false) } } } } this.setTransitioning(true) const complete = () => { this.setTransitioning(false) $(this._element) .removeClass(ClassName.COLLAPSING) .addClass(ClassName.COLLAPSE) .trigger(Event.HIDDEN) } this._element.style[dimension] = '' const transitionDuration = Util.getTransitionDurationFromElement(this._element) $(this._element) .one(Util.TRANSITION_END, complete) .emulateTransitionEnd(transitionDuration) } 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 = { ...Default, ...config } config.toggle = Boolean(config.toggle) // Coerce string values Util.typeCheckConfig(NAME, config, DefaultType) return config } _getDimension() { const hasWidth = $(this._element).hasClass(Dimension.WIDTH)
281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350
return hasWidth ? Dimension.WIDTH : Dimension.HEIGHT } _getParent() { let parent = null if (Util.isElement(this._config.parent)) { parent = this._config.parent // It's a jQuery object if (typeof this._config.parent.jquery !== 'undefined') { parent = this._config.parent[0] } } else { parent = document.querySelector(this._config.parent) } const selector = `[data-toggle="collapse"][data-parent="${this._config.parent}"]` const children = [].slice.call(parent.querySelectorAll(selector)) $(children).each((i, element) => { this._addAriaAndCollapsedClass( Collapse._getTargetFromElement(element), [element] ) }) return parent } _addAriaAndCollapsedClass(element, triggerArray) { if (element) { const isOpen = $(element).hasClass(ClassName.SHOW) if (triggerArray.length) { $(triggerArray) .toggleClass(ClassName.COLLAPSED, !isOpen) .attr('aria-expanded', isOpen) } } } // Static static _getTargetFromElement(element) { const selector = Util.getSelectorFromElement(element) return selector ? document.querySelector(selector) : null } static _jQueryInterface(config) { return this.each(function () { const $this = $(this) let data = $this.data(DATA_KEY) const _config = { ...Default, ...$this.data(), ...typeof config === 'object' && config ? config : {} } if (!data && _config.toggle && /show|hide/.test(config)) { _config.toggle = false } if (!data) { data = new Collapse(this, _config) $this.data(DATA_KEY, data) } if (typeof config === 'string') { if (typeof data[config] === 'undefined') {
351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399
throw new TypeError(`No method named "${config}"`) } data[config]() } }) } } /** * ------------------------------------------------------------------------ * Data Api implementation * ------------------------------------------------------------------------ */ $(document).on(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.currentTarget.tagName === 'A') { event.preventDefault() } const $trigger = $(this) const selector = Util.getSelectorFromElement(this) const selectors = [].slice.call(document.querySelectorAll(selector)) $(selectors).each(function () { const $target = $(this) const data = $target.data(DATA_KEY) const config = data ? 'toggle' : $trigger.data() Collapse._jQueryInterface.call($target, config) }) }) /** * ------------------------------------------------------------------------ * jQuery * ------------------------------------------------------------------------ */ $.fn[NAME] = Collapse._jQueryInterface $.fn[NAME].Constructor = Collapse $.fn[NAME].noConflict = function () { $.fn[NAME] = JQUERY_NO_CONFLICT return Collapse._jQueryInterface } return Collapse })($) export default Collapse