705 lines
22 KiB
JavaScript
705 lines
22 KiB
JavaScript
'use strict';
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import $ from 'jquery';
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import { Plugin } from './foundation.core.plugin';
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import { GetYoDigits } from './foundation.core.utils';
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/**
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* Abide module.
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* @module foundation.abide
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*/
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class Abide extends Plugin {
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/**
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* Creates a new instance of Abide.
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* @class
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* @name Abide
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* @fires Abide#init
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* @param {Object} element - jQuery object to add the trigger to.
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* @param {Object} options - Overrides to the default plugin settings.
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*/
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_setup(element, options = {}) {
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this.$element = element;
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this.options = $.extend(true, {}, Abide.defaults, this.$element.data(), options);
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this.className = 'Abide'; // ie9 back compat
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this._init();
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}
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/**
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* Initializes the Abide plugin and calls functions to get Abide functioning on load.
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* @private
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*/
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_init() {
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this.$inputs = $.merge( // Consider as input to validate:
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this.$element.find('input').not('[type=submit]'), // * all input fields expect submit
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this.$element.find('textarea, select') // * all textareas and select fields
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);
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const $globalErrors = this.$element.find('[data-abide-error]');
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// Add a11y attributes to all fields
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if (this.options.a11yAttributes) {
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this.$inputs.each((i, input) => this.addA11yAttributes($(input)));
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$globalErrors.each((i, error) => this.addGlobalErrorA11yAttributes($(error)));
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}
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this._events();
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}
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/**
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* Initializes events for Abide.
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* @private
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*/
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_events() {
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this.$element.off('.abide')
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.on('reset.zf.abide', () => {
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this.resetForm();
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})
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.on('submit.zf.abide', () => {
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return this.validateForm();
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});
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if (this.options.validateOn === 'fieldChange') {
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this.$inputs
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.off('change.zf.abide')
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.on('change.zf.abide', (e) => {
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this.validateInput($(e.target));
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});
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}
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if (this.options.liveValidate) {
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this.$inputs
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.off('input.zf.abide')
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.on('input.zf.abide', (e) => {
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this.validateInput($(e.target));
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});
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}
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if (this.options.validateOnBlur) {
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this.$inputs
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.off('blur.zf.abide')
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.on('blur.zf.abide', (e) => {
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this.validateInput($(e.target));
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});
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}
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}
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/**
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* Calls necessary functions to update Abide upon DOM change
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* @private
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*/
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_reflow() {
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this._init();
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}
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/**
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* Checks whether or not a form element has the required attribute and if it's checked or not
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* @param {Object} element - jQuery object to check for required attribute
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* @returns {Boolean} Boolean value depends on whether or not attribute is checked or empty
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*/
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requiredCheck($el) {
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if (!$el.attr('required')) return true;
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var isGood = true;
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switch ($el[0].type) {
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case 'checkbox':
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isGood = $el[0].checked;
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break;
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case 'select':
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case 'select-one':
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case 'select-multiple':
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var opt = $el.find('option:selected');
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if (!opt.length || !opt.val()) isGood = false;
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break;
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default:
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if(!$el.val() || !$el.val().length) isGood = false;
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}
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return isGood;
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}
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/**
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* Get:
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* - Based on $el, the first element(s) corresponding to `formErrorSelector` in this order:
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* 1. The element's direct sibling('s).
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* 2. The element's parent's children.
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* - Element(s) with the attribute `[data-form-error-for]` set with the element's id.
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*
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* This allows for multiple form errors per input, though if none are found, no form errors will be shown.
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*
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* @param {Object} $el - jQuery object to use as reference to find the form error selector.
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* @returns {Object} jQuery object with the selector.
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*/
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findFormError($el) {
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var id = $el[0].id;
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var $error = $el.siblings(this.options.formErrorSelector);
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if (!$error.length) {
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$error = $el.parent().find(this.options.formErrorSelector);
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}
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if (id) {
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$error = $error.add(this.$element.find(`[data-form-error-for="${id}"]`));
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}
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return $error;
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}
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/**
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* Get the first element in this order:
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* 2. The <label> with the attribute `[for="someInputId"]`
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* 3. The `.closest()` <label>
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*
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* @param {Object} $el - jQuery object to check for required attribute
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* @returns {Boolean} Boolean value depends on whether or not attribute is checked or empty
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*/
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findLabel($el) {
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var id = $el[0].id;
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var $label = this.$element.find(`label[for="${id}"]`);
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if (!$label.length) {
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return $el.closest('label');
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}
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return $label;
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}
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/**
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* Get the set of labels associated with a set of radio els in this order
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* 2. The <label> with the attribute `[for="someInputId"]`
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* 3. The `.closest()` <label>
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*
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* @param {Object} $el - jQuery object to check for required attribute
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* @returns {Boolean} Boolean value depends on whether or not attribute is checked or empty
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*/
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findRadioLabels($els) {
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var labels = $els.map((i, el) => {
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var id = el.id;
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var $label = this.$element.find(`label[for="${id}"]`);
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if (!$label.length) {
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$label = $(el).closest('label');
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}
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return $label[0];
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});
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return $(labels);
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}
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/**
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* Adds the CSS error class as specified by the Abide settings to the label, input, and the form
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* @param {Object} $el - jQuery object to add the class to
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*/
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addErrorClasses($el) {
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var $label = this.findLabel($el);
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var $formError = this.findFormError($el);
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if ($label.length) {
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$label.addClass(this.options.labelErrorClass);
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}
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if ($formError.length) {
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$formError.addClass(this.options.formErrorClass);
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}
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$el.addClass(this.options.inputErrorClass).attr({
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'data-invalid': '',
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'aria-invalid': true
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});
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}
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/**
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* Adds [for] and [role=alert] attributes to all form error targetting $el,
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* and [aria-describedby] attribute to $el toward the first form error.
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* @param {Object} $el - jQuery object
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*/
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addA11yAttributes($el) {
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let $errors = this.findFormError($el);
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let $labels = $errors.filter('label');
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let $error = $errors.first();
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if (!$errors.length) return;
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// Set [aria-describedby] on the input toward the first form error if it is not set
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if (typeof $el.attr('aria-describedby') === 'undefined') {
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// Get the first error ID or create one
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let errorId = $error.attr('id');
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if (typeof errorId === 'undefined') {
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errorId = GetYoDigits(6, 'abide-error');
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$error.attr('id', errorId);
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};
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$el.attr('aria-describedby', errorId);
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}
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if ($labels.filter('[for]').length < $labels.length) {
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// Get the input ID or create one
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let elemId = $el.attr('id');
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if (typeof elemId === 'undefined') {
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elemId = GetYoDigits(6, 'abide-input');
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$el.attr('id', elemId);
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};
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// For each label targeting $el, set [for] if it is not set.
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$labels.each((i, label) => {
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const $label = $(label);
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if (typeof $label.attr('for') === 'undefined')
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$label.attr('for', elemId);
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});
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}
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// For each error targeting $el, set [role=alert] if it is not set.
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$errors.each((i, label) => {
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const $label = $(label);
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if (typeof $label.attr('role') === 'undefined')
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$label.attr('role', 'alert');
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}).end();
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}
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/**
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* Adds [aria-live] attribute to the given global form error $el.
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* @param {Object} $el - jQuery object to add the attribute to
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*/
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addGlobalErrorA11yAttributes($el) {
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if (typeof $el.attr('aria-live') === 'undefined')
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$el.attr('aria-live', this.options.a11yErrorLevel);
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}
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/**
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* Remove CSS error classes etc from an entire radio button group
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* @param {String} groupName - A string that specifies the name of a radio button group
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*
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*/
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removeRadioErrorClasses(groupName) {
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var $els = this.$element.find(`:radio[name="${groupName}"]`);
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var $labels = this.findRadioLabels($els);
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var $formErrors = this.findFormError($els);
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if ($labels.length) {
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$labels.removeClass(this.options.labelErrorClass);
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}
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if ($formErrors.length) {
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$formErrors.removeClass(this.options.formErrorClass);
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}
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$els.removeClass(this.options.inputErrorClass).attr({
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'data-invalid': null,
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'aria-invalid': null
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});
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}
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/**
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* Removes CSS error class as specified by the Abide settings from the label, input, and the form
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* @param {Object} $el - jQuery object to remove the class from
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*/
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removeErrorClasses($el) {
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// radios need to clear all of the els
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if($el[0].type == 'radio') {
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return this.removeRadioErrorClasses($el.attr('name'));
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}
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var $label = this.findLabel($el);
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var $formError = this.findFormError($el);
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if ($label.length) {
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$label.removeClass(this.options.labelErrorClass);
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}
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if ($formError.length) {
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$formError.removeClass(this.options.formErrorClass);
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}
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$el.removeClass(this.options.inputErrorClass).attr({
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'data-invalid': null,
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'aria-invalid': null
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});
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}
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/**
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* Goes through a form to find inputs and proceeds to validate them in ways specific to their type.
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* Ignores inputs with data-abide-ignore, type="hidden" or disabled attributes set
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* @fires Abide#invalid
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* @fires Abide#valid
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* @param {Object} element - jQuery object to validate, should be an HTML input
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* @returns {Boolean} goodToGo - If the input is valid or not.
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*/
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validateInput($el) {
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var clearRequire = this.requiredCheck($el),
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validated = false,
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customValidator = true,
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validator = $el.attr('data-validator'),
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equalTo = true;
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// don't validate ignored inputs or hidden inputs or disabled inputs
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if ($el.is('[data-abide-ignore]') || $el.is('[type="hidden"]') || $el.is('[disabled]')) {
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return true;
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}
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switch ($el[0].type) {
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case 'radio':
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validated = this.validateRadio($el.attr('name'));
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break;
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case 'checkbox':
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validated = clearRequire;
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break;
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case 'select':
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case 'select-one':
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case 'select-multiple':
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validated = clearRequire;
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break;
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default:
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validated = this.validateText($el);
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}
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if (validator) {
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customValidator = this.matchValidation($el, validator, $el.attr('required'));
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}
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if ($el.attr('data-equalto')) {
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equalTo = this.options.validators.equalTo($el);
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}
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var goodToGo = [clearRequire, validated, customValidator, equalTo].indexOf(false) === -1;
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var message = (goodToGo ? 'valid' : 'invalid') + '.zf.abide';
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if (goodToGo) {
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// Re-validate inputs that depend on this one with equalto
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const dependentElements = this.$element.find(`[data-equalto="${$el.attr('id')}"]`);
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if (dependentElements.length) {
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let _this = this;
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dependentElements.each(function() {
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if ($(this).val()) {
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_this.validateInput($(this));
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}
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});
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}
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}
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this[goodToGo ? 'removeErrorClasses' : 'addErrorClasses']($el);
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/**
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* Fires when the input is done checking for validation. Event trigger is either `valid.zf.abide` or `invalid.zf.abide`
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* Trigger includes the DOM element of the input.
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* @event Abide#valid
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* @event Abide#invalid
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*/
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$el.trigger(message, [$el]);
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return goodToGo;
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}
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/**
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* Goes through a form and if there are any invalid inputs, it will display the form error element
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* @returns {Boolean} noError - true if no errors were detected...
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* @fires Abide#formvalid
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* @fires Abide#forminvalid
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*/
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validateForm() {
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var acc = [];
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var _this = this;
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this.$inputs.each(function() {
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acc.push(_this.validateInput($(this)));
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});
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var noError = acc.indexOf(false) === -1;
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this.$element.find('[data-abide-error]').each((i, elem) => {
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const $elem = $(elem);
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// Ensure a11y attributes are set
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if (this.options.a11yAttributes) this.addGlobalErrorA11yAttributes($elem);
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// Show or hide the error
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$elem.css('display', (noError ? 'none' : 'block'));
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});
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/**
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* Fires when the form is finished validating. Event trigger is either `formvalid.zf.abide` or `forminvalid.zf.abide`.
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* Trigger includes the element of the form.
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* @event Abide#formvalid
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* @event Abide#forminvalid
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*/
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this.$element.trigger((noError ? 'formvalid' : 'forminvalid') + '.zf.abide', [this.$element]);
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return noError;
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}
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/**
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* Determines whether or a not a text input is valid based on the pattern specified in the attribute. If no matching pattern is found, returns true.
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* @param {Object} $el - jQuery object to validate, should be a text input HTML element
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* @param {String} pattern - string value of one of the RegEx patterns in Abide.options.patterns
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* @returns {Boolean} Boolean value depends on whether or not the input value matches the pattern specified
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*/
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validateText($el, pattern) {
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// A pattern can be passed to this function, or it will be infered from the input's "pattern" attribute, or it's "type" attribute
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pattern = (pattern || $el.attr('pattern') || $el.attr('type'));
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var inputText = $el.val();
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var valid = false;
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if (inputText.length) {
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// If the pattern attribute on the element is in Abide's list of patterns, then test that regexp
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if (this.options.patterns.hasOwnProperty(pattern)) {
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valid = this.options.patterns[pattern].test(inputText);
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}
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// If the pattern name isn't also the type attribute of the field, then test it as a regexp
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else if (pattern !== $el.attr('type')) {
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valid = new RegExp(pattern).test(inputText);
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}
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else {
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valid = true;
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}
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}
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// An empty field is valid if it's not required
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else if (!$el.prop('required')) {
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valid = true;
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}
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return valid;
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}
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/**
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* Determines whether or a not a radio input is valid based on whether or not it is required and selected. Although the function targets a single `<input>`, it validates by checking the `required` and `checked` properties of all radio buttons in its group.
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* @param {String} groupName - A string that specifies the name of a radio button group
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* @returns {Boolean} Boolean value depends on whether or not at least one radio input has been selected (if it's required)
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*/
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validateRadio(groupName) {
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// If at least one radio in the group has the `required` attribute, the group is considered required
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// Per W3C spec, all radio buttons in a group should have `required`, but we're being nice
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var $group = this.$element.find(`:radio[name="${groupName}"]`);
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var valid = false, required = false;
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// For the group to be required, at least one radio needs to be required
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$group.each((i, e) => {
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if ($(e).attr('required')) {
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required = true;
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}
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});
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if(!required) valid=true;
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if (!valid) {
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// For the group to be valid, at least one radio needs to be checked
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$group.each((i, e) => {
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if ($(e).prop('checked')) {
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valid = true;
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}
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});
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};
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return valid;
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}
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/**
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* Determines if a selected input passes a custom validation function. Multiple validations can be used, if passed to the element with `data-validator="foo bar baz"` in a space separated listed.
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* @param {Object} $el - jQuery input element.
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* @param {String} validators - a string of function names matching functions in the Abide.options.validators object.
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* @param {Boolean} required - self explanatory?
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* @returns {Boolean} - true if validations passed.
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*/
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matchValidation($el, validators, required) {
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required = required ? true : false;
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var clear = validators.split(' ').map((v) => {
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return this.options.validators[v]($el, required, $el.parent());
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});
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return clear.indexOf(false) === -1;
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}
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/**
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* Resets form inputs and styles
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* @fires Abide#formreset
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*/
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resetForm() {
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var $form = this.$element,
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opts = this.options;
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$(`.${opts.labelErrorClass}`, $form).not('small').removeClass(opts.labelErrorClass);
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$(`.${opts.inputErrorClass}`, $form).not('small').removeClass(opts.inputErrorClass);
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$(`${opts.formErrorSelector}.${opts.formErrorClass}`).removeClass(opts.formErrorClass);
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$form.find('[data-abide-error]').css('display', 'none');
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$(':input', $form).not(':button, :submit, :reset, :hidden, :radio, :checkbox, [data-abide-ignore]').val('').attr({
|
|
'data-invalid': null,
|
|
'aria-invalid': null
|
|
});
|
|
$(':input:radio', $form).not('[data-abide-ignore]').prop('checked',false).attr({
|
|
'data-invalid': null,
|
|
'aria-invalid': null
|
|
});
|
|
$(':input:checkbox', $form).not('[data-abide-ignore]').prop('checked',false).attr({
|
|
'data-invalid': null,
|
|
'aria-invalid': null
|
|
});
|
|
/**
|
|
* Fires when the form has been reset.
|
|
* @event Abide#formreset
|
|
*/
|
|
$form.trigger('formreset.zf.abide', [$form]);
|
|
}
|
|
|
|
/**
|
|
* Destroys an instance of Abide.
|
|
* Removes error styles and classes from elements, without resetting their values.
|
|
*/
|
|
_destroy() {
|
|
var _this = this;
|
|
this.$element
|
|
.off('.abide')
|
|
.find('[data-abide-error]')
|
|
.css('display', 'none');
|
|
|
|
this.$inputs
|
|
.off('.abide')
|
|
.each(function() {
|
|
_this.removeErrorClasses($(this));
|
|
});
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Default settings for plugin
|
|
*/
|
|
Abide.defaults = {
|
|
/**
|
|
* The default event to validate inputs. Checkboxes and radios validate immediately.
|
|
* Remove or change this value for manual validation.
|
|
* @option
|
|
* @type {?string}
|
|
* @default 'fieldChange'
|
|
*/
|
|
validateOn: 'fieldChange',
|
|
|
|
/**
|
|
* Class to be applied to input labels on failed validation.
|
|
* @option
|
|
* @type {string}
|
|
* @default 'is-invalid-label'
|
|
*/
|
|
labelErrorClass: 'is-invalid-label',
|
|
|
|
/**
|
|
* Class to be applied to inputs on failed validation.
|
|
* @option
|
|
* @type {string}
|
|
* @default 'is-invalid-input'
|
|
*/
|
|
inputErrorClass: 'is-invalid-input',
|
|
|
|
/**
|
|
* Class selector to use to target Form Errors for show/hide.
|
|
* @option
|
|
* @type {string}
|
|
* @default '.form-error'
|
|
*/
|
|
formErrorSelector: '.form-error',
|
|
|
|
/**
|
|
* Class added to Form Errors on failed validation.
|
|
* @option
|
|
* @type {string}
|
|
* @default 'is-visible'
|
|
*/
|
|
formErrorClass: 'is-visible',
|
|
|
|
/**
|
|
* If true, automatically insert when possible:
|
|
* - `[aria-describedby]` on fields
|
|
* - `[role=alert]` on form errors and `[for]` on form error labels
|
|
* - `[aria-live]` on global errors `[data-abide-error]` (see option `a11yErrorLevel`).
|
|
* @option
|
|
* @type {boolean}
|
|
* @default true
|
|
*/
|
|
a11yAttributes: true,
|
|
|
|
/**
|
|
* [aria-live] attribute value to be applied on global errors `[data-abide-error]`.
|
|
* Options are: 'assertive', 'polite' and 'off'/null
|
|
* @option
|
|
* @see https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/ARIA_Live_Regions
|
|
* @type {string}
|
|
* @default 'assertive'
|
|
*/
|
|
a11yErrorLevel: 'assertive',
|
|
|
|
/**
|
|
* Set to true to validate text inputs on any value change.
|
|
* @option
|
|
* @type {boolean}
|
|
* @default false
|
|
*/
|
|
liveValidate: false,
|
|
|
|
/**
|
|
* Set to true to validate inputs on blur.
|
|
* @option
|
|
* @type {boolean}
|
|
* @default false
|
|
*/
|
|
validateOnBlur: false,
|
|
|
|
patterns: {
|
|
alpha : /^[a-zA-Z]+$/,
|
|
alpha_numeric : /^[a-zA-Z0-9]+$/,
|
|
integer : /^[-+]?\d+$/,
|
|
number : /^[-+]?\d*(?:[\.\,]\d+)?$/,
|
|
|
|
// amex, visa, diners
|
|
card : /^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|(?:222[1-9]|2[3-6][0-9]{2}|27[0-1][0-9]|2720)[0-9]{12}|6(?:011|5[0-9][0-9])[0-9]{12}|3[47][0-9]{13}|3(?:0[0-5]|[68][0-9])[0-9]{11}|(?:2131|1800|35\d{3})\d{11})$/,
|
|
cvv : /^([0-9]){3,4}$/,
|
|
|
|
// http://www.whatwg.org/specs/web-apps/current-work/multipage/states-of-the-type-attribute.html#valid-e-mail-address
|
|
email : /^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)+$/,
|
|
|
|
// From CommonRegexJS (@talyssonoc)
|
|
// https://github.com/talyssonoc/CommonRegexJS/blob/e2901b9f57222bc14069dc8f0598d5f412555411/lib/commonregex.js#L76
|
|
// For more restrictive URL Regexs, see https://mathiasbynens.be/demo/url-regex.
|
|
url: /^((?:(https?|ftps?|file|ssh|sftp):\/\/|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]+|\((?:[^\s()<>]+|(?:\([^\s()<>]+\)))*\))+(?:\((?:[^\s()<>]+|(?:\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:\'".,<>?\xab\xbb\u201c\u201d\u2018\u2019]))$/,
|
|
|
|
// abc.de
|
|
domain : /^([a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?\.)+[a-zA-Z]{2,8}$/,
|
|
|
|
datetime : /^([0-2][0-9]{3})\-([0-1][0-9])\-([0-3][0-9])T([0-5][0-9])\:([0-5][0-9])\:([0-5][0-9])(Z|([\-\+]([0-1][0-9])\:00))$/,
|
|
// YYYY-MM-DD
|
|
date : /(?:19|20)[0-9]{2}-(?:(?:0[1-9]|1[0-2])-(?:0[1-9]|1[0-9]|2[0-9])|(?:(?!02)(?:0[1-9]|1[0-2])-(?:30))|(?:(?:0[13578]|1[02])-31))$/,
|
|
// HH:MM:SS
|
|
time : /^(0[0-9]|1[0-9]|2[0-3])(:[0-5][0-9]){2}$/,
|
|
dateISO : /^\d{4}[\/\-]\d{1,2}[\/\-]\d{1,2}$/,
|
|
// MM/DD/YYYY
|
|
month_day_year : /^(0[1-9]|1[012])[- \/.](0[1-9]|[12][0-9]|3[01])[- \/.]\d{4}$/,
|
|
// DD/MM/YYYY
|
|
day_month_year : /^(0[1-9]|[12][0-9]|3[01])[- \/.](0[1-9]|1[012])[- \/.]\d{4}$/,
|
|
|
|
// #FFF or #FFFFFF
|
|
color : /^#?([a-fA-F0-9]{6}|[a-fA-F0-9]{3})$/,
|
|
|
|
// Domain || URL
|
|
website: {
|
|
test: (text) => {
|
|
return Abide.defaults.patterns['domain'].test(text) || Abide.defaults.patterns['url'].test(text);
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Optional validation functions to be used. `equalTo` being the only default included function.
|
|
* Functions should return only a boolean if the input is valid or not. Functions are given the following arguments:
|
|
* el : The jQuery element to validate.
|
|
* required : Boolean value of the required attribute be present or not.
|
|
* parent : The direct parent of the input.
|
|
* @option
|
|
*/
|
|
validators: {
|
|
equalTo: function (el, required, parent) {
|
|
return $(`#${el.attr('data-equalto')}`).val() === el.val();
|
|
}
|
|
}
|
|
}
|
|
|
|
export {Abide};
|