talos

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/**
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 * --------------------------------------------------------------------------
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 * Bootstrap (v4.6.1): dropdown.js
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 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
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 * --------------------------------------------------------------------------
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 */
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import $ from 'jquery'
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import Popper from 'popper.js'
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import Util from './util'
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/**
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 * Constants
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 */
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const NAME = 'dropdown'
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const VERSION = '4.6.1'
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const DATA_KEY = 'bs.dropdown'
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const EVENT_KEY = `.${DATA_KEY}`
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const DATA_API_KEY = '.data-api'
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const JQUERY_NO_CONFLICT = $.fn[NAME]
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const ESCAPE_KEYCODE = 27 // KeyboardEvent.which value for Escape (Esc) key
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const SPACE_KEYCODE = 32 // KeyboardEvent.which value for space key
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const TAB_KEYCODE = 9 // KeyboardEvent.which value for tab key
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const ARROW_UP_KEYCODE = 38 // KeyboardEvent.which value for up arrow key
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const ARROW_DOWN_KEYCODE = 40 // KeyboardEvent.which value for down arrow key
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const RIGHT_MOUSE_BUTTON_WHICH = 3 // MouseEvent.which value for the right button (assuming a right-handed mouse)
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const REGEXP_KEYDOWN = new RegExp(`${ARROW_UP_KEYCODE}|${ARROW_DOWN_KEYCODE}|${ESCAPE_KEYCODE}`)
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const CLASS_NAME_DISABLED = 'disabled'
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const CLASS_NAME_SHOW = 'show'
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const CLASS_NAME_DROPUP = 'dropup'
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const CLASS_NAME_DROPRIGHT = 'dropright'
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const CLASS_NAME_DROPLEFT = 'dropleft'
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const CLASS_NAME_MENURIGHT = 'dropdown-menu-right'
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const CLASS_NAME_POSITION_STATIC = 'position-static'
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const EVENT_HIDE = `hide${EVENT_KEY}`
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const EVENT_HIDDEN = `hidden${EVENT_KEY}`
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const EVENT_SHOW = `show${EVENT_KEY}`
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const EVENT_SHOWN = `shown${EVENT_KEY}`
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const EVENT_CLICK = `click${EVENT_KEY}`
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const EVENT_CLICK_DATA_API = `click${EVENT_KEY}${DATA_API_KEY}`
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const EVENT_KEYDOWN_DATA_API = `keydown${EVENT_KEY}${DATA_API_KEY}`
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const EVENT_KEYUP_DATA_API = `keyup${EVENT_KEY}${DATA_API_KEY}`
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const SELECTOR_DATA_TOGGLE = '[data-toggle="dropdown"]'
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const SELECTOR_FORM_CHILD = '.dropdown form'
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const SELECTOR_MENU = '.dropdown-menu'
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const SELECTOR_NAVBAR_NAV = '.navbar-nav'
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const SELECTOR_VISIBLE_ITEMS = '.dropdown-menu .dropdown-item:not(.disabled):not(:disabled)'
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const PLACEMENT_TOP = 'top-start'
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const PLACEMENT_TOPEND = 'top-end'
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const PLACEMENT_BOTTOM = 'bottom-start'
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const PLACEMENT_BOTTOMEND = 'bottom-end'
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const PLACEMENT_RIGHT = 'right-start'
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const PLACEMENT_LEFT = 'left-start'
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const Default = {
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  offset: 0,
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  flip: true,
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  boundary: 'scrollParent',
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  reference: 'toggle',
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  display: 'dynamic',
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  popperConfig: null
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}
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const DefaultType = {
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  offset: '(number|string|function)',
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  flip: 'boolean',
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  boundary: '(string|element)',
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  reference: '(string|element)',
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  display: 'string',
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  popperConfig: '(null|object)'
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}
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/**
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 * Class definition
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 */
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class Dropdown {
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  constructor(element, config) {
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    this._element = element
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    this._popper = null
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    this._config = this._getConfig(config)
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    this._menu = this._getMenuElement()
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    this._inNavbar = this._detectNavbar()
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    this._addEventListeners()
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  }
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  // Getters
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  static get VERSION() {
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    return VERSION
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  }
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  static get Default() {
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    return Default
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  }
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  static get DefaultType() {
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    return DefaultType
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  }
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  // Public
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  toggle() {
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    if (this._element.disabled || $(this._element).hasClass(CLASS_NAME_DISABLED)) {
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      return
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    }
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    const isActive = $(this._menu).hasClass(CLASS_NAME_SHOW)
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    Dropdown._clearMenus()
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    if (isActive) {
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      return
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    }
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    this.show(true)
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  }
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  show(usePopper = false) {
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    if (this._element.disabled || $(this._element).hasClass(CLASS_NAME_DISABLED) || $(this._menu).hasClass(CLASS_NAME_SHOW)) {
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      return
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    }
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    const relatedTarget = {
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      relatedTarget: this._element
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    }
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    const showEvent = $.Event(EVENT_SHOW, relatedTarget)
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    const parent = Dropdown._getParentFromElement(this._element)
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    $(parent).trigger(showEvent)
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    if (showEvent.isDefaultPrevented()) {
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      return
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    }
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    // Totally disable Popper for Dropdowns in Navbar
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    if (!this._inNavbar && usePopper) {
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      // Check for Popper dependency
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      if (typeof Popper === 'undefined') {
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        throw new TypeError('Bootstrap\'s dropdowns require Popper (https://popper.js.org)')
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      }
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      let referenceElement = this._element
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      if (this._config.reference === 'parent') {
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        referenceElement = parent
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      } else if (Util.isElement(this._config.reference)) {
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        referenceElement = this._config.reference
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        // Check if it's jQuery element
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        if (typeof this._config.reference.jquery !== 'undefined') {
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          referenceElement = this._config.reference[0]
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        }
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      }
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      // If boundary is not `scrollParent`, then set position to `static`
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      // to allow the menu to "escape" the scroll parent's boundaries
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      // https://github.com/twbs/bootstrap/issues/24251
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      if (this._config.boundary !== 'scrollParent') {
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        $(parent).addClass(CLASS_NAME_POSITION_STATIC)
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      }
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      this._popper = new Popper(referenceElement, this._menu, this._getPopperConfig())
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    }
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    // If this is a touch-enabled device we add extra
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    // empty mouseover listeners to the body's immediate children;
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    // only needed because of broken event delegation on iOS
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    // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html
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    if ('ontouchstart' in document.documentElement &&
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        $(parent).closest(SELECTOR_NAVBAR_NAV).length === 0) {
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      $(document.body).children().on('mouseover', null, $.noop)
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    }
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    this._element.focus()
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    this._element.setAttribute('aria-expanded', true)
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    $(this._menu).toggleClass(CLASS_NAME_SHOW)
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    $(parent)
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      .toggleClass(CLASS_NAME_SHOW)
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      .trigger($.Event(EVENT_SHOWN, relatedTarget))
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  }
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  hide() {
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    if (this._element.disabled || $(this._element).hasClass(CLASS_NAME_DISABLED) || !$(this._menu).hasClass(CLASS_NAME_SHOW)) {
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      return
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    }
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    const relatedTarget = {
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      relatedTarget: this._element
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    }
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    const hideEvent = $.Event(EVENT_HIDE, relatedTarget)
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    const parent = Dropdown._getParentFromElement(this._element)
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    $(parent).trigger(hideEvent)
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    if (hideEvent.isDefaultPrevented()) {
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      return
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    }
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    if (this._popper) {
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      this._popper.destroy()
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    }
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    $(this._menu).toggleClass(CLASS_NAME_SHOW)
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    $(parent)
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      .toggleClass(CLASS_NAME_SHOW)
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      .trigger($.Event(EVENT_HIDDEN, relatedTarget))
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  }
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  dispose() {
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    $.removeData(this._element, DATA_KEY)
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    $(this._element).off(EVENT_KEY)
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    this._element = null
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    this._menu = null
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    if (this._popper !== null) {
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      this._popper.destroy()
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      this._popper = null
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    }
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  }
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  update() {
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    this._inNavbar = this._detectNavbar()
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    if (this._popper !== null) {
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      this._popper.scheduleUpdate()
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    }
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  }
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  // Private
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  _addEventListeners() {
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    $(this._element).on(EVENT_CLICK, event => {
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      event.preventDefault()
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      event.stopPropagation()
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      this.toggle()
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    })
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  }
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  _getConfig(config) {
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    config = {
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      ...this.constructor.Default,
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      ...$(this._element).data(),
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      ...config
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    }
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    Util.typeCheckConfig(
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      NAME,
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      config,
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      this.constructor.DefaultType
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    )
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    return config
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  }
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  _getMenuElement() {
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    if (!this._menu) {
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      const parent = Dropdown._getParentFromElement(this._element)
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      if (parent) {
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        this._menu = parent.querySelector(SELECTOR_MENU)
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      }
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    }
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    return this._menu
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  }
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  _getPlacement() {
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    const $parentDropdown = $(this._element.parentNode)
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    let placement = PLACEMENT_BOTTOM
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    // Handle dropup
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    if ($parentDropdown.hasClass(CLASS_NAME_DROPUP)) {
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      placement = $(this._menu).hasClass(CLASS_NAME_MENURIGHT) ?
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        PLACEMENT_TOPEND :
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        PLACEMENT_TOP
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    } else if ($parentDropdown.hasClass(CLASS_NAME_DROPRIGHT)) {
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      placement = PLACEMENT_RIGHT
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    } else if ($parentDropdown.hasClass(CLASS_NAME_DROPLEFT)) {
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      placement = PLACEMENT_LEFT
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    } else if ($(this._menu).hasClass(CLASS_NAME_MENURIGHT)) {
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      placement = PLACEMENT_BOTTOMEND
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    }
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    return placement
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  }
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  _detectNavbar() {
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    return $(this._element).closest('.navbar').length > 0
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  }
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  _getOffset() {
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    const offset = {}
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    if (typeof this._config.offset === 'function') {
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      offset.fn = data => {
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        data.offsets = {
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          ...data.offsets,
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          ...this._config.offset(data.offsets, this._element)
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        }
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        return data
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      }
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    } else {
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      offset.offset = this._config.offset
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    }
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    return offset
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  }
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  _getPopperConfig() {
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    const popperConfig = {
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      placement: this._getPlacement(),
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      modifiers: {
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        offset: this._getOffset(),
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        flip: {
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          enabled: this._config.flip
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        },
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        preventOverflow: {
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          boundariesElement: this._config.boundary
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        }
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      }
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    }
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    // Disable Popper if we have a static display
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    if (this._config.display === 'static') {
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      popperConfig.modifiers.applyStyle = {
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        enabled: false
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      }
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    }
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    return {
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      ...popperConfig,
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      ...this._config.popperConfig
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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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      const _config = typeof config === 'object' ? config : null
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      if (!data) {
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        data = new Dropdown(this, _config)
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        $(this).data(DATA_KEY, data)
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      }
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      if (typeof config === 'string') {
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        if (typeof data[config] === 'undefined') {
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          throw new TypeError(`No method named "${config}"`)
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        }
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        data[config]()
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      }
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    })
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  }
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  static _clearMenus(event) {
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    if (event && (event.which === RIGHT_MOUSE_BUTTON_WHICH ||
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      event.type === 'keyup' && event.which !== TAB_KEYCODE)) {
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      return
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    }
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    const toggles = [].slice.call(document.querySelectorAll(SELECTOR_DATA_TOGGLE))
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    for (let i = 0, len = toggles.length; i < len; i++) {
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      const parent = Dropdown._getParentFromElement(toggles[i])
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      const context = $(toggles[i]).data(DATA_KEY)
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      const relatedTarget = {
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        relatedTarget: toggles[i]
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      }
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      if (event && event.type === 'click') {
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        relatedTarget.clickEvent = event
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      }
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      if (!context) {
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        continue
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      }
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      const dropdownMenu = context._menu
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      if (!$(parent).hasClass(CLASS_NAME_SHOW)) {
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        continue
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      }
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      if (event && (event.type === 'click' &&
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          /input|textarea/i.test(event.target.tagName) || event.type === 'keyup' && event.which === TAB_KEYCODE) &&
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          $.contains(parent, event.target)) {
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        continue
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      }
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      const hideEvent = $.Event(EVENT_HIDE, relatedTarget)
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      $(parent).trigger(hideEvent)
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      if (hideEvent.isDefaultPrevented()) {
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        continue
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      }
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      // If this is a touch-enabled device we remove the extra
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      // empty mouseover listeners we added for iOS support
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      if ('ontouchstart' in document.documentElement) {
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        $(document.body).children().off('mouseover', null, $.noop)
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      }
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      toggles[i].setAttribute('aria-expanded', 'false')
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      if (context._popper) {
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        context._popper.destroy()
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      }
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      $(dropdownMenu).removeClass(CLASS_NAME_SHOW)
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      $(parent)
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        .removeClass(CLASS_NAME_SHOW)
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        .trigger($.Event(EVENT_HIDDEN, relatedTarget))
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    }
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  }
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  static _getParentFromElement(element) {
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    let parent
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    const selector = Util.getSelectorFromElement(element)
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    if (selector) {
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      parent = document.querySelector(selector)
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    }
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    return parent || element.parentNode
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  }
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  // eslint-disable-next-line complexity
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  static _dataApiKeydownHandler(event) {
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    // If not input/textarea:
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    //  - And not a key in REGEXP_KEYDOWN => not a dropdown command
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    // If input/textarea:
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    //  - If space key => not a dropdown command
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    //  - If key is other than escape
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    //    - If key is not up or down => not a dropdown command
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    //    - If trigger inside the menu => not a dropdown command
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    if (/input|textarea/i.test(event.target.tagName) ?
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      event.which === SPACE_KEYCODE || event.which !== ESCAPE_KEYCODE &&
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      (event.which !== ARROW_DOWN_KEYCODE && event.which !== ARROW_UP_KEYCODE ||
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        $(event.target).closest(SELECTOR_MENU).length) : !REGEXP_KEYDOWN.test(event.which)) {
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      return
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    }
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    if (this.disabled || $(this).hasClass(CLASS_NAME_DISABLED)) {
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      return
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    }
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    const parent = Dropdown._getParentFromElement(this)
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    const isActive = $(parent).hasClass(CLASS_NAME_SHOW)
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    if (!isActive && event.which === ESCAPE_KEYCODE) {
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      return
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    }
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    event.preventDefault()
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    event.stopPropagation()
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    if (!isActive || (event.which === ESCAPE_KEYCODE || event.which === SPACE_KEYCODE)) {
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      if (event.which === ESCAPE_KEYCODE) {
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        $(parent.querySelector(SELECTOR_DATA_TOGGLE)).trigger('focus')
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      }
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      $(this).trigger('click')
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      return
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    }
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    const items = [].slice.call(parent.querySelectorAll(SELECTOR_VISIBLE_ITEMS))
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      .filter(item => $(item).is(':visible'))
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    if (items.length === 0) {
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      return
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    }
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    let index = items.indexOf(event.target)
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    if (event.which === ARROW_UP_KEYCODE && index > 0) { // Up
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      index--
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    }
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    if (event.which === ARROW_DOWN_KEYCODE && index < items.length - 1) { // Down
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      index++
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    }
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    if (index < 0) {
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      index = 0
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    }
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    items[index].focus()
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  }
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}
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/**
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 * Data API implementation
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 */
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$(document)
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  .on(EVENT_KEYDOWN_DATA_API, SELECTOR_DATA_TOGGLE, Dropdown._dataApiKeydownHandler)
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  .on(EVENT_KEYDOWN_DATA_API, SELECTOR_MENU, Dropdown._dataApiKeydownHandler)
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  .on(`${EVENT_CLICK_DATA_API} ${EVENT_KEYUP_DATA_API}`, Dropdown._clearMenus)
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  .on(EVENT_CLICK_DATA_API, SELECTOR_DATA_TOGGLE, function (event) {
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    event.preventDefault()
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    event.stopPropagation()
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    Dropdown._jQueryInterface.call($(this), 'toggle')
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  })
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  .on(EVENT_CLICK_DATA_API, SELECTOR_FORM_CHILD, e => {
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    e.stopPropagation()
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  })
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/**
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 * jQuery
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 */
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$.fn[NAME] = Dropdown._jQueryInterface
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$.fn[NAME].Constructor = Dropdown
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$.fn[NAME].noConflict = () => {
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  $.fn[NAME] = JQUERY_NO_CONFLICT
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  return Dropdown._jQueryInterface
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}
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export default Dropdown
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