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import { reflectAttribute, normalizeBoolean, hasSlotText } from 'sds/utils';
import 'sds/privateThemeProvider';
export default class InputTime extends LightningElement {
static shadowSupportMode = 'native';
_value = '';
_name = 'input-time';
_isoTime = '';
_hour = '';
_minute = '';
_locale = 'en-US';
_invalid = false;
_validityMessage;
_validTime = true;
_disabled = false;
_readonly = false;
_required = false;
_timeObject = {};
_inputElement;
_helpTextElement;
// Use to calculate time in Date API
YEAR = 2000;
MONTH = 0; // 0-indexed (January)
DAY = 1;
connectedCallback() {
this._value = this._value ? this._value : this.currentTime;
this._isoTime = this._convertToIsoTime(this._value);
}
/**
* Sets the value of the input
* @param {string} value
*/
@api
id = 'input-time';
/**
* Sets the locale of the input
* @param {string} locale
* @default en-US
*/
@api
get locale() {
return this._locale;
}
set locale(value) {
this._locale = value;
}
/**
* The current values of the input
* @param {string} value
*/
@api
get value() {
return this._value;
}
set value(value) {
this._value = value;
}
/**
* Sets the name of the input
* @param {string} name
* @default input-time
* @required
*/
@api
get name() {
return this._name;
}
set name(value) {
this._name = value;
}
/**
* Returns the ISO time of the input
* @returns {string} ISO time
* @readonly
*/
@api
get isoTime() {
return this._isoTime;
}
/**
* Returns the hour value of the input
* @returns {string} hour
* @readonly
*/
@api
get hour() {
return this._hour;
}
/**
* Returns the minute value of the input
* @returns {string} minute
* @readonly
*/
@api
get minute() {
return this._minute;
}
/**
* 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);
}
/**
* 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);
}
/**
* 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 message of the input
* @returns {string} validity message
* @readonly
*/
@api
get validityMessage() {
return this._validityMessage;
}
/**
* Returns the time object of the input
* @returns {object} time object
* @readonly
* @private
*/
get input() {
this._inputElement = this._inputElement || this.template.querySelector('input');
return this._inputElement;
}
/**
* Returns the validity object of the input
* @returns {string} validity message
* @readonly
*/
@api
get validity() {
return Promise.resolve().then(() => this.input.validity);
}
/**
* Sets focus on the input
*/
@api
focus() {
this.input.focus();
this.setAttribute('focus', '');
}
/**
* Create time in locale format
*/
get currentTime() {
const currentTime = new Date();
const options = { hour: 'numeric', minute: 'numeric' };
this._hour = currentTime.getHours();
this._minute = currentTime.getMinutes();
return new Intl.DateTimeFormat(this.locale, options).format(currentTime);
}
_checkFormat(time) {
switch (true) {
case /(am|pm)/i.test(time):
this.format = '12-hour';
break;
case /(\d+):(\d+)/i.test(time):
this.format = '24-hour';
break;
default:
break;
}
}
E_convertToIsoTime(timeString) {
this._timeObject = {
hour: '',
Eminute: '',
period: '',
};
let timeParts;
this._checkFormat(timeString);
Iif (this.format === '12-hour') {
timeParts = timeString.match(/(\d+):(\d+).(am|pm)/i);
this._timeObject.hour = parseInt(timeParts[1], 10);
this._timeObject.minute = parseInt(timeParts[2], 10);
this._timeObject.period = timeParts[3].toUpperCase();
if (this._timeObject.period === 'PM' && this._timeObject.hour !== 12) {
this._timeObject.hour += 12;
} else if (this._timeObject.period === 'AM' && this._timeObject.hour === 12) {
this._timeObject.hour = 0;
}
} else {
timeParts = timeString.match(/(\d+):(\d+)/i);
this._timeObject.hour = parseInt(timeParts[1], 10);
this._timeObject.minute = parseInt(timeParts[2], 10);
}
if (!timeParts) {
throw new Error('Invalid time format');
}
// Format as ISO 8601 time string
return `${this._timeObject.hour.toString().padStart(2, '0')}:${this._timeObject.minute
.toString()
.padStart(2, '0')}`;
I}
/**
* 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
*E @private
*/
get helpText() {
this._helpTextElement = this._helpTextElement || this.template.querySelector('[part="help-text"]');
return this._helpTextElement;
}
/**
* On click handler for the input
*/
handleClick() {
if (this.disabled || this._readonly) {
return;
}
this.input.focus();
this.setAttribute('focus', '');
// if valid time, restore iso time when interacting with input
if (this._isoTime && !this._invalid) {
this._value = this._convertToIsoTime(this.value);
}
}
/**
* On keydown handler for the input
* Prevents user from inputting anything other than numbers and colons
* @param {Event} e
*/
handleKeyPress(e) {
const keyCode = e.keyCode || e.which;
const keyValue = String.fromCharCode(keyCode);
if (!/^[0-9\:]$/.test(keyValue)) {
e.preventDefault();
}
}
/**
* 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) {
return;
}
this._handleValidity(e.target.value);
this._value = e.target.value;
this.setAttribute('active', '');
this.dispatchEvent(new CustomEvent('change'));
}
/**
* On blur handler for the input
* Handles validity and stores the value as the formatted time. Removes active attribute from host element when blurring.
* @param {Event} e
*/
handleBlur(e) {
if (this.disabled || this._readonly) {
return;
}
// Don't fire off validity check if were not checking against a valid iso time
if (e.target.value === this._isoTime) {
this._handleValidity(e.target.value);
}
// If valid, restore formatted time on blur and store new iso time
Eif (!this.invalid) {
Ethis._isoTime = this._convertToIsoTime(e.target.value);
this._value = this._timeInLocaleFormat(e.target.value);
}
this.removeAttribute('focus');
this.removeAttribute('active');
}
/**
* 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) {
const 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.');
}
/**
* Handles validity of the input, returns validity message if invalid
* @param {string} value - an ISO time string
*/
_handleValidity(time) {
this._validTime = this._validateTime(time);
if (!this._validTime) {
this.input.setCustomValidity('Time is not valid');
this._validityMessage = 'Time is not valid. Please enter a valid time. Format: HH:MM';
} else {
this.input.setCustomValidity('');
this._validityMessage = null;
}
this.invalid = !this.input.validity.valid;
}
/**
* Validates the time, ensure the format is 24-Hour
* @param {string} time
*/
_validateTime(time) {
let isValidTime = false;
const regex = /^(?:[01]?\d|2[0-3]):[0-5]\d$/; // H:MM or HH:MM format
isValidTime = regex.test(time);
if (isValidTime) {
const [hour, minute] = time.split(':').map(Number);
this._hour = hour;
this._minute = minute;
}
return isValidTime;
}
/**
*
* @param {string} hour
* @param {string} minute
* @returns HH:MM in locale format
*/
_timeInLocaleFormat() {
const date = new Date(this.YEAR, this.MONTH, this.DAY, this._timeObject.hour, this._timeObject.minute);
const options = { hour: 'numeric', minute: 'numeric' };
this._hour = date.getHours();
this._minute = date.getMinutes();
return new Intl.DateTimeFormat(this.locale, options).format(date);
}
}
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