text: /**
   * --------------------------------------------------------------------------
   * Bootstrap (v5.0.1): dropdown.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
   * --------------------------------------------------------------------------
   */
  
  import * as Popper from '@popperjs/core'
  
  import {
    defineJQueryPlugin,
    getElement,
    getElementFromSelector,
    isDisabled,
    isElement,
    isVisible,
    isRTL,
    noop,
    getNextActiveElement,
    typeCheckConfig
  } from './util/index'
  import EventHandler from './dom/event-handler'
  import Manipulator from './dom/manipulator'
  import SelectorEngine from './dom/selector-engine'
  import BaseComponent from './base-component'
  
  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */
  
  const NAME = 'dropdown'
  const DATA_KEY = 'bs.dropdown'
  const EVENT_KEY = `.${DATA_KEY}`
  const DATA_API_KEY = '.data-api'
  
  const ESCAPE_KEY = 'Escape'
  const SPACE_KEY = 'Space'
  const TAB_KEY = 'Tab'
  const ARROW_UP_KEY = 'ArrowUp'
  const ARROW_DOWN_KEY = 'ArrowDown'
  const RIGHT_MOUSE_BUTTON = 2 // MouseEvent.button value for the secondary button, usually the right button
  
  const REGEXP_KEYDOWN = new RegExp(`${ARROW_UP_KEY}|${ARROW_DOWN_KEY}|${ESCAPE_KEY}`)
  
  const EVENT_HIDE = `hide${EVENT_KEY}`
  const EVENT_HIDDEN = `hidden${EVENT_KEY}`
  const EVENT_SHOW = `show${EVENT_KEY}`
  const EVENT_SHOWN = `shown${EVENT_KEY}`
  const EVENT_CLICK = `click${EVENT_KEY}`
  const EVENT_CLICK_DATA_API = `click${EVENT_KEY}${DATA_API_KEY}`
  const EVENT_KEYDOWN_DATA_API = `keydown${EVENT_KEY}${DATA_API_KEY}`
  const EVENT_KEYUP_DATA_API = `keyup${EVENT_KEY}${DATA_API_KEY}`
  
  const CLASS_NAME_SHOW = 'show'
  const CLASS_NAME_DROPUP = 'dropup'
  const CLASS_NAME_DROPEND = 'dropend'
  const CLASS_NAME_DROPSTART = 'dropstart'
  const CLASS_NAME_NAVBAR = 'navbar'
  
  const SELECTOR_DATA_TOGGLE = '[data-bs-toggle="dropdown"]'
  const SELECTOR_MENU = '.dropdown-menu'
  const SELECTOR_NAVBAR_NAV = '.navbar-nav'
  const SELECTOR_VISIBLE_ITEMS = '.dropdown-menu .dropdown-item:not(.disabled):not(:disabled)'
  
  const PLACEMENT_TOP = isRTL() ? 'top-end' : 'top-start'
  const PLACEMENT_TOPEND = isRTL() ? 'top-start' : 'top-end'
  const PLACEMENT_BOTTOM = isRTL() ? 'bottom-end' : 'bottom-start'
  const PLACEMENT_BOTTOMEND = isRTL() ? 'bottom-start' : 'bottom-end'
  const PLACEMENT_RIGHT = isRTL() ? 'left-start' : 'right-start'
  const PLACEMENT_LEFT = isRTL() ? 'right-start' : 'left-start'
  
  const Default = {
    offset: [0, 2],
    boundary: 'clippingParents',
    reference: 'toggle',
    display: 'dynamic',
    popperConfig: null,
    autoClose: true
  }
  
  const DefaultType = {
    offset: '(array|string|function)',
    boundary: '(string|element)',
    reference: '(string|element|object)',
    display: 'string',
    popperConfig: '(null|object|function)',
    autoClose: '(boolean|string)'
  }
  
  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */
  
  class Dropdown extends BaseComponent {
    constructor(element, config) {
      super(element)
  
      this._popper = null
      this._config = this._getConfig(config)
      this._menu = this._getMenuElement()
      this._inNavbar = this._detectNavbar()
  
      this._addEventListeners()
    }
  
    // Getters
  
    static get Default() {
      return Default
    }
  
    static get DefaultType() {
      return DefaultType
    }
  
    static get NAME() {
      return NAME
    }
  
    // Public
  
    toggle() {
      if (isDisabled(this._element)) {
        return
      }
  
      const isActive = this._element.classList.contains(CLASS_NAME_SHOW)
  
      if (isActive) {
        this.hide()
        return
      }
  
      this.show()
    }
  
    show() {
      if (isDisabled(this._element) || this._menu.classList.contains(CLASS_NAME_SHOW)) {
        return
      }
  
      const parent = Dropdown.getParentFromElement(this._element)
      const relatedTarget = {
        relatedTarget: this._element
      }
  
      const showEvent = EventHandler.trigger(this._element, EVENT_SHOW, relatedTarget)
  
      if (showEvent.defaultPrevented) {
        return
      }
  
      // Totally disable Popper for Dropdowns in Navbar
      if (this._inNavbar) {
        Manipulator.setDataAttribute(this._menu, 'popper', 'none')
      } else {
        if (typeof Popper === 'undefined') {
          throw new TypeError('Bootstrap\'s dropdowns require Popper (https://popper.js.org)')
        }
  
        let referenceElement = this._element
  
        if (this._config.reference === 'parent') {
          referenceElement = parent
        } else if (isElement(this._config.reference)) {
          referenceElement = getElement(this._config.reference)
        } else if (typeof this._config.reference === 'object') {
          referenceElement = this._config.reference
        }
  
        const popperConfig = this._getPopperConfig()
        const isDisplayStatic = popperConfig.modifiers.find(modifier => modifier.name === 'applyStyles' && modifier.enabled === false)
  
        this._popper = Popper.createPopper(referenceElement, this._menu, popperConfig)
  
        if (isDisplayStatic) {
          Manipulator.setDataAttribute(this._menu, 'popper', 'static')
        }
      }
  
      // If this is a touch-enabled device we add extra
      // empty mouseover listeners to the body's immediate children;
      // only needed because of broken event delegation on iOS
      // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html
      if ('ontouchstart' in document.documentElement &&
        !parent.closest(SELECTOR_NAVBAR_NAV)) {
        [].concat(...document.body.children)
          .forEach(elem => EventHandler.on(elem, 'mouseover', noop))
      }
  
      this._element.focus()
      this._element.setAttribute('aria-expanded', true)
  
      this._menu.classList.toggle(CLASS_NAME_SHOW)
      this._element.classList.toggle(CLASS_NAME_SHOW)
      EventHandler.trigger(this._element, EVENT_SHOWN, relatedTarget)
    }
  
    hide() {
      if (isDisabled(this._element) || !this._menu.classList.contains(CLASS_NAME_SHOW)) {
        return
      }
  
      const relatedTarget = {
        relatedTarget: this._element
      }
  
      this._completeHide(relatedTarget)
    }
  
    dispose() {
      if (this._popper) {
        this._popper.destroy()
      }
  
      super.dispose()
    }
  
    update() {
      this._inNavbar = this._detectNavbar()
      if (this._popper) {
        this._popper.update()
      }
    }
  
    // Private
  
    _addEventListeners() {
      EventHandler.on(this._element, EVENT_CLICK, event => {
        event.preventDefault()
        this.toggle()
      })
    }
  
    _completeHide(relatedTarget) {
      const hideEvent = EventHandler.trigger(this._element, EVENT_HIDE, relatedTarget)
      if (hideEvent.defaultPrevented) {
        return
      }
  
      // If this is a touch-enabled device we remove the extra
      // empty mouseover listeners we added for iOS support
      if ('ontouchstart' in document.documentElement) {
        [].concat(...document.body.children)
          .forEach(elem => EventHandler.off(elem, 'mouseover', noop))
      }
  
      if (this._popper) {
        this._popper.destroy()
      }
  
      this._menu.classList.remove(CLASS_NAME_SHOW)
      this._element.classList.remove(CLASS_NAME_SHOW)
      this._element.setAttribute('aria-expanded', 'false')
      Manipulator.removeDataAttribute(this._menu, 'popper')
      EventHandler.trigger(this._element, EVENT_HIDDEN, relatedTarget)
    }
  
    _getConfig(config) {
      config = {
        ...this.constructor.Default,
        ...Manipulator.getDataAttributes(this._element),
        ...config
      }
  
      typeCheckConfig(NAME, config, this.constructor.DefaultType)
  
      if (typeof config.reference === 'object' && !isElement(config.reference) &&
        typeof config.reference.getBoundingClientRect !== 'function'
      ) {
        // Popper virtual elements require a getBoundingClientRect method
        throw new TypeError(`${NAME.toUpperCase()}: Option "reference" provided type "object" without a required "getBoundingClientRect" method.`)
      }
  
      return config
    }
  
    _getMenuElement() {
      return SelectorEngine.next(this._element, SELECTOR_MENU)[0]
    }
  
    _getPlacement() {
      const parentDropdown = this._element.parentNode
  
      if (parentDropdown.classList.contains(CLASS_NAME_DROPEND)) {
        return PLACEMENT_RIGHT
      }
  
      if (parentDropdown.classList.contains(CLASS_NAME_DROPSTART)) {
        return PLACEMENT_LEFT
      }
  
      // We need to trim the value because custom properties can also include spaces
      const isEnd = getComputedStyle(this._menu).getPropertyValue('--bs-position').trim() === 'end'
  
      if (parentDropdown.classList.contains(CLASS_NAME_DROPUP)) {
        return isEnd ? PLACEMENT_TOPEND : PLACEMENT_TOP
      }
  
      return isEnd ? PLACEMENT_BOTTOMEND : PLACEMENT_BOTTOM
    }
  
    _detectNavbar() {
      return this._element.closest(`.${CLASS_NAME_NAVBAR}`) !== null
    }
  
    _getOffset() {
      const { offset } = this._config
  
      if (typeof offset === 'string') {
        return offset.split(',').map(val => Number.parseInt(val, 10))
      }
  
      if (typeof offset === 'function') {
        return popperData => offset(popperData, this._element)
      }
  
      return offset
    }
  
    _getPopperConfig() {
      const defaultBsPopperConfig = {
        placement: this._getPlacement(),
        modifiers: [{
          name: 'preventOverflow',
          options: {
            boundary: this._config.boundary
          }
        },
        {
          name: 'offset',
          options: {
            offset: this._getOffset()
          }
        }]
      }
  
      // Disable Popper if we have a static display
      if (this._config.display === 'static') {
        defaultBsPopperConfig.modifiers = [{
          name: 'applyStyles',
          enabled: false
        }]
      }
  
      return {
        ...defaultBsPopperConfig,
        ...(typeof this._config.popperConfig === 'function' ? this._config.popperConfig(defaultBsPopperConfig) : this._config.popperConfig)
      }
    }
  
    _selectMenuItem({ key, target }) {
      const items = SelectorEngine.find(SELECTOR_VISIBLE_ITEMS, this._menu).filter(isVisible)
  
      if (!items.length) {
        return
      }
  
      // if target isn't included in items (e.g. when expanding the dropdown)
      // allow cycling to get the last item in case key equals ARROW_UP_KEY
      getNextActiveElement(items, target, key === ARROW_DOWN_KEY, !items.includes(target)).focus()
    }
  
    // Static
  
    static dropdownInterface(element, config) {
      const data = Dropdown.getOrCreateInstance(element, config)
  
      if (typeof config === 'string') {
        if (typeof data[config] === 'undefined') {
          throw new TypeError(`No method named "${config}"`)
        }
  
        data[config]()
      }
    }
  
    static jQueryInterface(config) {
      return this.each(function () {
        Dropdown.dropdownInterface(this, config)
      })
    }
  
    static clearMenus(event) {
      if (event && (event.button === RIGHT_MOUSE_BUTTON || (event.type === 'keyup' && event.key !== TAB_KEY))) {
        return
      }
  
      const toggles = SelectorEngine.find(SELECTOR_DATA_TOGGLE)
  
      for (let i = 0, len = toggles.length; i < len; i++) {
        const context = Dropdown.getInstance(toggles[i])
        if (!context || context._config.autoClose === false) {
          continue
        }
  
        if (!context._element.classList.contains(CLASS_NAME_SHOW)) {
          continue
        }
  
        const relatedTarget = {
          relatedTarget: context._element
        }
  
        if (event) {
          const composedPath = event.composedPath()
          const isMenuTarget = composedPath.includes(context._menu)
          if (
            composedPath.includes(context._element) ||
            (context._config.autoClose === 'inside' && !isMenuTarget) ||
            (context._config.autoClose === 'outside' && isMenuTarget)
          ) {
            continue
          }
  
          // Tab navigation through the dropdown menu or events from contained inputs shouldn't close the menu
          if (context._menu.contains(event.target) && ((event.type === 'keyup' && event.key === TAB_KEY) || /input|select|option|textarea|form/i.test(event.target.tagName))) {
            continue
          }
  
          if (event.type === 'click') {
            relatedTarget.clickEvent = event
          }
        }
  
        context._completeHide(relatedTarget)
      }
    }
  
    static getParentFromElement(element) {
      return getElementFromSelector(element) || element.parentNode
    }
  
    static dataApiKeydownHandler(event) {
      // If not input/textarea:
      //  - And not a key in REGEXP_KEYDOWN => not a dropdown command
      // If input/textarea:
      //  - If space key => not a dropdown command
      //  - If key is other than escape
      //    - If key is not up or down => not a dropdown command
      //    - If trigger inside the menu => not a dropdown command
      if (/input|textarea/i.test(event.target.tagName) ?
        event.key === SPACE_KEY || (event.key !== ESCAPE_KEY &&
        ((event.key !== ARROW_DOWN_KEY && event.key !== ARROW_UP_KEY) ||
          event.target.closest(SELECTOR_MENU))) :
        !REGEXP_KEYDOWN.test(event.key)) {
        return
      }
  
      const isActive = this.classList.contains(CLASS_NAME_SHOW)
  
      if (!isActive && event.key === ESCAPE_KEY) {
        return
      }
  
      event.preventDefault()
      event.stopPropagation()
  
      if (isDisabled(this)) {
        return
      }
  
      const getToggleButton = () => this.matches(SELECTOR_DATA_TOGGLE) ? this : SelectorEngine.prev(this, SELECTOR_DATA_TOGGLE)[0]
  
      if (event.key === ESCAPE_KEY) {
        getToggleButton().focus()
        Dropdown.clearMenus()
        return
      }
  
      if (event.key === ARROW_UP_KEY || event.key === ARROW_DOWN_KEY) {
        if (!isActive) {
          getToggleButton().click()
        }
  
        Dropdown.getInstance(getToggleButton())._selectMenuItem(event)
        return
      }
  
      if (!isActive || event.key === SPACE_KEY) {
        Dropdown.clearMenus()
      }
    }
  }
  
  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
   * ------------------------------------------------------------------------
   */
  
  EventHandler.on(document, EVENT_KEYDOWN_DATA_API, SELECTOR_DATA_TOGGLE, Dropdown.dataApiKeydownHandler)
  EventHandler.on(document, EVENT_KEYDOWN_DATA_API, SELECTOR_MENU, Dropdown.dataApiKeydownHandler)
  EventHandler.on(document, EVENT_CLICK_DATA_API, Dropdown.clearMenus)
  EventHandler.on(document, EVENT_KEYUP_DATA_API, Dropdown.clearMenus)
  EventHandler.on(document, EVENT_CLICK_DATA_API, SELECTOR_DATA_TOGGLE, function (event) {
    event.preventDefault()
    Dropdown.dropdownInterface(this)
  })
  
  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   * add .Dropdown to jQuery only if jQuery is present
   */
  
  defineJQueryPlugin(Dropdown)
  
  export default Dropdown
  