alert.js

/**
 * --------------------------------------------------------------------------
 * Bootstrap (v5.0.0-alpha1): alert.js
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
 * --------------------------------------------------------------------------
 */

import {
  getjQuery,
  TRANSITION_END,
  emulateTransitionEnd,
  getElementFromSelector,
  getTransitionDurationFromElement
} from './util/index'
import Data from './dom/data'
import EventHandler from './dom/event-handler'

/**
 * ------------------------------------------------------------------------
 * Constants
 * ------------------------------------------------------------------------
 */

const NAME = 'alert'
const VERSION = '5.0.0-alpha1'
const DATA_KEY = 'bs.alert'
const EVENT_KEY = `.${DATA_KEY}`
const DATA_API_KEY = '.data-api'

const SELECTOR_DISMISS = '[data-dismiss="alert"]'

const EVENT_CLOSE = `close${EVENT_KEY}`
const EVENT_CLOSED = `closed${EVENT_KEY}`
const EVENT_CLICK_DATA_API = `click${EVENT_KEY}${DATA_API_KEY}`

const CLASSNAME_ALERT = 'alert'
const CLASSNAME_FADE = 'fade'
const CLASSNAME_SHOW = 'show'

/**
 * ------------------------------------------------------------------------
 * Class Definition
 * ------------------------------------------------------------------------
 */

class Alert {
  constructor(element) {
    this._element = element

    if (this._element) {
      Data.setData(element, DATA_KEY, this)
    }
  }

  // Getters

  static get VERSION() {
    return VERSION
  }

  // Public

  close(element) {
    const rootElement = element ? this._getRootElement(element) : this._element
    const customEvent = this._triggerCloseEvent(rootElement)

    if (customEvent === null || customEvent.defaultPrevented) {
      return
    }