bootstrap-italia/dist/plugins/input.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 EventHandler from 'bootstrap/js/src/dom/event-handler';
import SelectorEngine from 'bootstrap/js/src/dom/selector-engine';
import InputLabel from './input-label.js';

const NAME = 'input';
const DATA_KEY = 'bs.input';
const EVENT_KEY = `.${DATA_KEY}`;
const DATA_API_KEY = '.data-api';

const EVENT_MOUSEDOWN_DATA_API = `mousedown${EVENT_KEY}${DATA_API_KEY}`;
const EVENT_KEYUP_DATA_API = `keyup${EVENT_KEY}${DATA_API_KEY}`;

const EVENT_CHANGE = `change${EVENT_KEY}`;

class Input extends BaseComponent {
  constructor(element) {
    super(element);

    this._label = new InputLabel(element);
    this._bindEvents();
  }

  // Getters

  static get NAME() {
    return NAME
  }

  // Public

  // Private
  _bindEvents() {
    if (this._element.getAttribute('type') === 'file') {
      EventHandler.on(this._element, EVENT_CHANGE, () => {
        this._handleFileDescription();
      });
    }
  }

  _handleFileDescription() {
    const fileNames = [];
    let labelPrefix = '';

    Array.from(this._element.files).forEach((file) => {
      const fileSize = Math.round(parseInt(file.size, 10) / 1024);
      fileNames.push(file.name + ' (' + fileSize + 'kb)');
    });

    if (this._element.files.length > 1) {
      labelPrefix = this._element.files.length + ' file da caricare: ';
    }

    const label = SelectorEngine.findOne('label[for="' + this._element.getAttribute('id') + '"] label.form-file-name', this._element);
    if (label) {
      label.innerText = labelPrefix + fileNames.join('; ');
    }
  }
}

/**
 * ------------------------------------------------------------------------
 * Data Api implementation
 * ------------------------------------------------------------------------
 */
const excludes = [
  'select',
  //'input[data-bs-input][type="number"]',
  'input[data-bs-input][type="password"]',
  'input.input-password[data-bs-input]',
  'input[data-bs-autocomplete][type="search"]',
  'input[type="time"]',
];

/*const inputs = SelectorEngine.find('input, textarea').filter((input) => {
  let result = true
  excludes.forEach((selector) => {
    if (input.matches(selector)) {
      result = false
    }
  })
  return result
})
inputs.forEach((input) => {
  Input.getOrCreateInstance(input)
})*/

const createInput = (element) => {
  const toExclude = !!excludes.find((selector) => element.matches(selector));
  const isInputNumber = !!(element.getAttribute('type') === 'number' && element.parentNode.querySelector('button[class^="input-number-"]')); //check if it's a InputNumber component
  if (!toExclude && !isInputNumber) {
    return Input.getOrCreateInstance(element)
  }
  return null
};

EventHandler.on(document, EVENT_MOUSEDOWN_DATA_API, 'input, textarea, label', function () {
  const target = InputLabel.getInputFromLabel(this) || this;
  createInput(target);
});
EventHandler.on(document, EVENT_KEYUP_DATA_API, 'input, textarea, label', function () {
  const target = InputLabel.getInputFromLabel(this) || this;
  const element = createInput(target);
  if (element && element._label) {
    element._label._labelOut();
  }
});

export { Input as default };
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