bootstrap-italia/src/js/plugins/accept-overlay.js

Bootstrap Italia è un tema Bootstrap 5 per la creazione di applicazioni web nel pieno rispetto delle linee guida di design per i siti internet e i servizi digitali della PA

import BaseComponent from 'bootstrap/js/src/base-component.js'

import { reflow } from 'bootstrap/js/src/util'
import { cookies } from './util/cookies'
import SelectorEngine from 'bootstrap/js/src/dom/selector-engine'

const NAME = 'acceptoverlay'

const CLASS_NAME_FADE = 'fade'
const CLASS_NAME_SHOW = 'show'

const SELECTOR_DATA_TOGGLE = '[data-bs-accept-from]'
const SELECTOR_DATA_REMEMBER = '[data-bs-accept-remember]'

class AcceptOverlay extends BaseComponent {
  constructor(element, config) {
    const parentElement = element.closest('.acceptoverlay')
    super(parentElement)
    this._overlayable = element.closest('.acceptoverlayable')
    const remember = cookies.isChoiceRemembered(config.service)
    this._isShown = true
    this._toggleElement = element
    if (this._element.classList.contains(CLASS_NAME_SHOW)) {
      this._overlayable.classList.add(CLASS_NAME_SHOW)
    }
    if (remember) {
      this.hide()
      setTimeout(() => {
        this._toggleElement.dispatchEvent(new Event('click'))
      }, 100)
      return
    }
    this._toggleElement.addEventListener('click', () => {
      this.hide()
      this._remember = this._toggleElement.parentElement.querySelector(SELECTOR_DATA_REMEMBER).checked
      cookies.rememberChoice(config.service, this._remember)
    })
  }

  // Getters

  static get NAME() {
    return NAME
  }

  // Public

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

    this._isShown = true

    if (this._isAnimated()) {
      this._isTransitioning = true
    }

    this._showElement()
  }

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

    this._isShown = false
    const isAnimated = this._isAnimated()

    if (isAnimated) {
      this._isTransitioning = true
    }

    this._element.classList.remove(CLASS_NAME_SHOW)
    this._overlayable.classList.remove(CLASS_NAME_SHOW)

    this._queueCallback(() => this._hideElement(), this._element, isAnimated)
  }

  //Private

  _isAnimated() {
    return this._element.classList.contains(CLASS_NAME_FADE)
  }

  _showElement() {
    const isAnimated = this._isAnimated()

    this._element.removeAttribute('aria-hidden')

    if (isAnimated) {
      reflow(this._element)
    }

    this._element.classList.add(CLASS_NAME_SHOW)
    this._overlayable.add(CLASS_NAME_SHOW)

    const transitionComplete = () => {
      this._isTransitioning = false
    }

    this._queueCallback(transitionComplete, this._element, isAnimated)
  }

  _hideElement() {
    this._element.setAttribute('aria-hidden', true)
    this._isTransitioning = false
  }
}

/**
 * ------------------------------------------------------------------------
 * Data Api implementation
 * ------------------------------------------------------------------------
 */

const acceptOverlays = SelectorEngine.find(SELECTOR_DATA_TOGGLE)
if (acceptOverlays.length > 0) {
  acceptOverlays.forEach((element) => {
    AcceptOverlay.getOrCreateInstance(element, { service: element.dataset.bsAcceptFrom })
  })
}

export default AcceptOverlay