lion/packages/ui/components/input-date/src/LionInputDate.js
2022-10-31 16:55:07 +01:00

70 lines
2 KiB
JavaScript

import { IsDate } from '@lion/ui/form-core.js';
import { LionInput } from '@lion/ui/input.js';
import { formatDate, LocalizeMixin, parseDate } from '@lion/ui/localize.js';
/**
* @param {Date|number} date
*/
function isValidDate(date) {
// to make sure it is a valid date we use isNaN and not Number.isNaN
// @ts-ignore [allow]: dirty hack, you're not supposed to pass Date instances to isNaN
// eslint-disable-next-line no-restricted-globals
return date instanceof Date && !isNaN(date);
}
/**
* `LionInputDate` has a .modelValue of type Date. It parses, formats and validates based
* on locale.
*
* @customElement lion-input-date
*/
export class LionInputDate extends LocalizeMixin(LionInput) {
/** @type {any} */
static get properties() {
return {
modelValue: Date,
};
}
constructor() {
super();
/**
* @param {string} value
*/
this.parser = value => (value === '' ? undefined : parseDate(value));
this.formatter = formatDate;
this.defaultValidators.push(new IsDate());
// Just explicitly make clear we shouldn't use type 'date'
this.type = 'text';
}
/** @param {import('@lion/core').PropertyValues } changedProperties */
updated(changedProperties) {
super.updated(changedProperties);
if (changedProperties.has('locale')) {
this._calculateValues({ source: null });
}
}
/**
* @param {Date} modelValue
*/
// eslint-disable-next-line class-methods-use-this
serializer(modelValue) {
if (!isValidDate(modelValue)) {
return '';
}
// modelValue is localized, so we take the timezone offset in milliseconds and subtract it
// before converting it to ISO string.
const offset = modelValue.getTimezoneOffset() * 60000;
return new Date(modelValue.getTime() - offset).toISOString().slice(0, 10);
}
/**
* @param {string} serializedValue
*/
// eslint-disable-next-line class-methods-use-this
deserializer(serializedValue) {
return new Date(serializedValue);
}
}