bootstrap-italia/src/js/plugins/select-autocomplete.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 accessibleAutocomplete from 'accessible-autocomplete'

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

const NAME = 'selectautocomplete'

function onClassChange(element, callback) {
  const observer = new MutationObserver((mutations) => {
    mutations.forEach((mutation) => {
      if (mutation.type === 'attributes' && mutation.attributeName === 'class') {
        callback(mutation.target)
      }
    })
  })
  observer.observe(element, { attributes: true })
  return observer.disconnect
}

class SelectAutocomplete extends BaseComponent {
  constructor(element, config) {
    super(element)
    this._hasFormControl = element.classList.contains('form-control')
    this.element_original_id = this._element.id
    this._config = config
    this._enhance()
  }

  // Getters

  static get NAME() {
    return NAME
  }

  // Private
  _enhance() {
    accessibleAutocomplete.enhanceSelectElement(Object.assign({}, { selectElement: this._element }, this._config))
    setTimeout(() => {
      if (this._hasFormControl) {
        const inputField = document.getElementById(this.element_original_id)
        inputField.classList.add('form-control')
        onClassChange(inputField, (node) => {
          if (!node.classList.contains('form-control')) {
            node.classList.add('form-control')
          }
        })
      }
    }, 100)
  }
}

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

export default SelectAutocomplete