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import { reflectAttribute, normalizeBoolean, DateFormatter, dateRegexIso, hasSlotText } from 'sds/utils';
import 'sds/privateThemeProvider';
export default class InputDate extends LightningElement {
static shadowSupportMode = 'native';
_value = '';
_name = 'input-date';
_isoDate = '';
_locale = 'en-US';
_day = '';
_month = '';
_year = '';
_dayformat = 'numeric';
_monthformat = 'short';
_yearformat = 'numeric';
_invalid = false;
_validityMessage;
_validDate = true;
_dateObject = {};
_disabled = false;
_readonly = false;
_required = false;
_helptext;
_inputElement;
_helpTextElement;
connectedCallback() {
this._value = this._todaysDate();
this._isoDate = this._formatIsoDate(this._day, this._month, this._year);
}
/**
* Sets the value of the input
* @param {string} value
*/
@api id = 'input-date';
/**
* Sets the month format of the input
* @param {enum} monthformat
* @values short, long, numeric, 2-digit
* @default numeric
*/
@api
get monthformat() {
return this._monthformat;
}
set monthformat(value) {
this._monthformat = value;
}
/**
* Sets the day format of the input
* @param {enum} dayformat
* @values numeric, 2-digit
* @default numeric
*/
@api
get dayformat() {
return this._dayformat;
}
set dayformat(value) {
this._dayformat = value;
}
/**
* The current values of the input
* @param {string} value
*/
@api
get value() {
return this._value;
}
set value(value) {
this._value = value;
}
/**
* Sets the locale of the input
* @param {string} locale
* @default en-US
*/
@api
get locale() {
return this._locale;
}
set locale(value) {
this._locale = value;
}
/**
* Sets the name of the input
* @param {string} name
* @default input-date
* @required
*/
@api
get name() {
return this._name;
}
set name(value) {
this._name = value;
}
/**
* Determines if the input is disabled
* @param {boolean} disabled
* @default false
*/
@api
get disabled() {
return this._disabled;
}
set disabled(value) {
this._disabled = normalizeBoolean(value);
reflectAttribute(this, 'disabled', this._disabled);
}
/**
* Determines if the input is readonly
* @param {boolean} readonly
* @default false
*/
@api
get readOnly() {
return this._readonly;
}
set readOnly(value) {
this._readonly = normalizeBoolean(value);
reflectAttribute(this, 'readonly', this._readonly);
}
/**
* Visually hides the label.
* @type {boolean}
*/
@api
get labelHidden() {
return this._labelHidden;
}
set labelHidden(value) {
this._labelHidden = normalizeBoolean(value);
reflectAttribute(this, 'label-hidden', this._labelHidden);
}
/**
* Determines if the input is required
* @param {boolean} required
* @default false
*/
@api
get required() {
return this._required;
}
set required(value) {
this._required = normalizeBoolean(value);
reflectAttribute(this, 'required', this._required);
}
/**
* Returns the day value of the input
* @returns {string} day
* @readonly
*/
@api
get day() {
return this._day;
}
/**
* Returns the month value of the input
* @returns {string} month
* @readonly
*/
@api
get month() {
return this._month;
}
/**
* Returns the year value of the input
* @returns {string} year
* @readonly
*/
@api
get year() {
return this._year;
}
/**
* Allows customer to set invalid state on input
* An example would be if the input is required and the value is empty on form submit,
* since we are not using native form validation, we need to offer the ability set the invalid state on the input
* @param {boolean} invalid
* @default false
*/
@api
get invalid() {
return this._invalid;
}
set invalid(value) {
this._invalid = normalizeBoolean(value);
reflectAttribute(this, 'invalid', this._invalid);
}
/**
* Returns the validity object of the input
* @returns {string} validity message
* @readonly
*/
@api
get validity() {
return Promise.resolve().then(() => this.input.validity);
}
/**
* Returns the validity message of the input
* @returns {string} validity message
* @readonly
*/
@api
get validityMessage() {
return this._validityMessage;
}
/**
* Gets or sets the ISO date of the input.
*
* @return {string} The ISO date.
* @param {string} value - The new ISO date.
*/
@api
get isoDate() {
return this._isoDate;
}
set isoDate(value) {
this._isoDate = value;
}
/**
* Returns the date object of the input
* @returns {object} date object
* @readonly
* @private
*/
get input() {
this._inputElement = this._inputElement || this.template.querySelector('input');
return this._inputElement;
}
/**
* Returns the help text element, if it exists
* Used to dynamically add/remove the associated ID to the input element if help text is present
* @returns {object} help text element
* @private
*/
get helpText() {
this._helpTextElement = this._helpTextElement || this.template.querySelector('[part="help-text"]');
return this._helpTextElement;
}
/**
* If invalid, sets the aria-invalid attribute on the input element
* and sets invalid attribute on custom element
* @private
*/
isInvalid() {
if (!this.input.validity.valid) {
this.invalid = true;
} else {
this.invalid = false;
}
}
/**
* Handles validity of the input, returns validity message if invalid
* @param {string} value - an ISO date string
*/
_handleValidity(value) {
this._validateDate(value);
// _validDate gets set in _validateDate, if not valid set validity object to fail with custom message
if (!this._validDate) {
this.input.setCustomValidity('Date is not valid');
this._validityMessage = 'Date is not valid. Please enter a valid date. Format: YYYY-MM-DD';
} else {
this.input.setCustomValidity('');
this._validityMessage = null;
}
this.isInvalid();
}
/**
* Creates a date object for todays date
*/
_todaysDate() {
const today = new Date();
this._day = String(today.getDate()).padStart(2, '0');
this._month = String(today.getMonth() + 1).padStart(2, '0');
this._year = today.getFullYear();
return new DateFormatter(this.locale, this._day, this._month, this._year, {
day: this.dayformat,
month: this.monthformat,
year: this._yearformat,
}).format();
}
/**
* Formats the date based on the locale
* @param {string} day
* @param {string} month
* @param {string} year
* @returns {string} formatted date
*/
@api
_formatDate(day, month, year) {
return new DateFormatter(this.locale, day, month, year, {
day: this.dayformat,
month: this.monthformat,
year: this._yearformat,
}).format();
}
/**
* Formats the date to ISO format
* @param {string} day
* @param {string} month
* @param {string} year
* @returns {string} ISO date
*/
_formatIsoDate(day, month, year) {
const date = new Date(Date.UTC(year, month - 1, day, 0, 0, 0));
return date.toISOString().split('T')[0];
}
/**
* Returns the numeric month value
* @param {string} month
* @returns {number} numeric month
*/
_getNumericMonth(month) {
const date = new Date(`${month} 1, 2000`);
if (date.toString() !== 'Invalid Date') {
return date.getMonth() + 1;
} else {
// return -1 if invalid month to prevent error in DateFormatter
return -1;
}
}
/**
* Returns the number of days in a month
* @param {string} month
* @Iparam {string} year
* @returns {number} number of days in month
*/
_getDaysInMonth(month, year) {
return new Date(year, month, 0).getDate();
}
/**
* IValidates the date, ensure the ISO format is YYYY-MM-DD
* @param {string} date
*/
_validateDate(date) {
Elet dateRegex = dateRegexIso;
// check if valid date, e.g. 2020/01/01
if (dateRegex.test(date)) {
this._validDate = true;
this._year = Number(dateRegex.exec(date)[1]);
this._month = Number(dateRegex.exec(date)[2]);
this._day = Number(dateRegex.exec(date)[3]);
// check if valid month
if (this._month < 1 || this._month > 12) {
this._validDate = false;
}
// check if valid day
if (this._day < 1 || this._day > this._getDaysInMonth(this._month, this._year)) {
this._validDate = false;
}
// check if valid year
if (this._year < 1900 || this._year > 2100) {
this._validDate = false;
}
// If valid, store the date object
if (this._validDate) {
this._dateObject.numeric = new DateFormatter(this.locale, this._day, this._month, this._year, {
day: 'numeric',
month: 'numeric',
year: 'numeric',
}).format();
this._dateObject.date = new DateFormatter(this.locale, this._day, this._month, this._year, {
day: this.dayformat,
month: this.monthformat,
year: this._yearformat,
}).format();
I }
} else {
this._validDate = false;
}
}
/*E*
* Validates the date and updates the dateObject with the given date.
*
* @param {string} date - The date to validate and update the dateObject with.
* @return {void}
*/
@api
validateAndSetDate(date) {
this._handleValidity(date); // Validate the date and update the dateObject
}
/*I*
* On click handler for the input
* Restores ISO date value when focused
*/
handleClick() {
if (this.disabled || this.readonly) {
return;
}
this.input.focus();
this.setAttribute('focus', '');
// if valid date, restore ISO date when interacting with input
if (this._isoDate && !this._invalid) {
this._value = this._isoDate;
}
}
/**
* On input handler for the input
* Handles validity and stores the value. Sets active attribute to host element when typing.
* @param {Event} e
*/
handleInput(e) {
if (this.disabled || this.readonly) {
E return;
}
this._handleValidity(e.target.value);
this._value = e.target.value;
this.EsetAttribute('active', '');
this.dispatchEvent(new CustomEvent('change'));
}
/**
* On blur handler for the input
* Handles validity and stores the value as the formatted date. Removes active attribute from host element when blurring.
* @param {Event} e
*/
handleBlur(e) {
if (this.disabled || this.readonly) {
return;
}
// make sure we don't fire off validity check if we are not checking against a valid iso date
if (e.target.value === this._isoDate) {
this._handleValidity(this._isoDate);
}
// If not invalid, restore formatted date on blur and store new iso date
if (!this._invalid) {
// Check if _dateObject.date is defined before assigning it to _value
if (this._dateObject && this._dateObject.date) {
this._value = this._dateObject.date;
} else {
this._value = e.target.value; // (Prevents "undefined" bug on blur with tab)
}
// Store the ISO date in the YYYY-MM-DD format
this._isoDate = this._formatIsoDate(this._day, this._month, this._year);
}
this.removeAttribute('active');
this.removeAttribute('focus');
// Dispatch an event with both the formatted date and ISO date
const eventDetail = {
value: this._value,
isoDate: this._isoDate,
};
this.dispatchEvent(
new CustomEvent('blur', {
detail: eventDetail,
bubbles: true,
composed: true,
}),
);
E}
/**
* On keydown handler for the input
* Prevents user from inputting anything other than numbers and hyphens
* @param {Event} e
*/
handleKeyPress(e) {
const keyCode = e.keyCode || e.which;
const keyValue = String.fromCharCode(keyCode);
if (!/^[0-9\-]$/.test(keyValue)) {
e.preventDefault();
}
}
/**
* Slot change event on help text slot
* Used to dynamically add/remove the associated ID to the input element if help text is present
* Used to dynamically add "visible" part to the help text element if help text is found in the slot
* @param {*} e - slot change event
*/
handleHelpTextSlotChange(e) {
let childElements = e.target.assignedElements({ flatten: true });
if (childElements.length > 0) {
if (this.helpText) {
this.helpText.id = 'id-help-text';
this.input.setAttribute('aria-describedby', 'id-help-text');
this.helpText.setAttribute('part', 'help-text visible');
}
}
}
/**
* Slot change event on the label slot
* Used to check if the label has a slotted value, if not, we throw an error that one must be included
* @param {*} e - slot change event
*/
handleLabelSlotChange(e) {
!hasSlotText(e) && console.error('A label value must be included for all form elements.');
}
}
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