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/**
* --------------------------------------------------------------------------
* Bootstrap (v5.3.0): util/form-validation.js
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
* --------------------------------------------------------------------------
*/
import BaseComponent from '../base-component'
import EventHandler from '../dom/event-handler'
import FormField from './form-field'
import SelectorEngine from '../dom/selector-engine'
const NAME = 'formValidation'
const DATA_KEY = 'bs.formValidation'
const EVENT_KEY = `.${DATA_KEY}`
const EVENT_LOAD_DATA_API = `load${EVENT_KEY}`
const EVENT_SUBMIT = `submit${EVENT_KEY}`
const EVENT_RESET = `reset${EVENT_KEY}`
const CLASS_VALIDATED = 'was-validated'
const SELECTOR_DATA_TOGGLE = 'form[data-bs-toggle="form-validation"]'
const Default = {
type: 'feedback', // or 'tooltip'
validateCallback: null
}
const DefaultType = {
type: 'string', validateCallback: '(function|null)'
}
class Form extends BaseComponent {
constructor(element, config) {
if (element.tagName !== 'FORM') {
throw new TypeError(`Need to be initialized in form elements. "${element.tagName}" given`)
}
super(element, config)
this._formFields = null // form field instances
}
static get NAME() {
return NAME
}
static get Default() {
return Default
}
static get DefaultType() {
return DefaultType
}
getFields() {
if (!this._formFields) {
this._formFields = this._initializeFields()
}
return this._formFields
}
getField(name) {
return this.getFields().get(name)
}
clear() {
this._element.classList.remove(CLASS_VALIDATED)
// eslint-disable-next-line no-unused-vars
for (const [name, field] of this.getFields()) {
field.clearAppended()
}
}
validate() {
this.clear()
const fetchedErrors = this._fetchErrors()
if (this._element.checkValidity() && !Object.keys(fetchedErrors).length) {
return true
}
for (const [name, field] of this.getFields()) {
this._appendErrorToField(field, fetchedErrors[name] || null)
}
this._element.classList.add(CLASS_VALIDATED)
return false
}
getDataForSubmission() {
return new FormData(this._element)
}
_appendErrorToField(field, givenMessage) {
const element = field.getElement()
if (givenMessage) { // if field is invalid check and return for default message
field.appendError(givenMessage)
return
}
if (element.checkValidity()) { // if field is valid, return first success message
field.appendSuccess()
return
}
if (field.appendError()) { // if field is invalid check and return for default message
return
}
field.appendError(element.validationMessage)
}
_initializeFields() {
const fields = new Map()
const formElements = Array.from(this._element.elements) // the DOM elements
for (const element of formElements) {
const name = element.name || element.id
const field = FormField.getOrCreateInstance(element, {
name, type: this._config.type
})
fields.set(name, field)
}
return fields
}
_fetchErrors() {
return typeof this._config.validateCallback === 'function' ? this._config.validateCallback(this.getDataForSubmission()) : {}
}
}
// On submit we want to auto-validate form
EventHandler.on(document, EVENT_SUBMIT, SELECTOR_DATA_TOGGLE, event => {
const { target } = event
const instance = Form.getOrCreateInstance(target)
if (!target.checkValidity()) {
event.preventDefault()
event.stopPropagation()
}
if (instance.validate()) {
target.submit()
}
})
EventHandler.on(document, EVENT_RESET, SELECTOR_DATA_TOGGLE, event => {
const { target } = event
const instance = Form.getOrCreateInstance(target)
instance.clear()
})
// On load, add `novalidate` attribute to avoid browser validation
EventHandler.on(window, EVENT_LOAD_DATA_API, () => {
for (const el of SelectorEngine.find(SELECTOR_DATA_TOGGLE)) {
el.setAttribute('novalidate', true)
}
})
export default Form
|
