0d3ec8e2ad
Use the upcoming [Temporal.PlainDate](https://tc39.es/proposal-temporal/docs/plaindate.html) via polyfill. If there is any remaining bugs in `<absolute-date>` this will iron them out. I opted for the lightweight polyfill because both seem to achieve our goal of localizeable absolute dates. - With [`@js-temporal/polyfill`](https://www.npmjs.com/package/@js-temporal/polyfill) chunk size goes from 81.4 KiB to 274 KiB - With [`temporal-polyfill`](https://www.npmjs.com/package/temporal-polyfill) chunk size goes from 81.4 KiB to 142 KiB Also see [this table](https://github.com/fullcalendar/temporal-polyfill?tab=readme-ov-file#comparison-with-js-temporalpolyfill) for more comparisons of these polyfills. Soon there will be [treeshakable API](https://github.com/fullcalendar/temporal-polyfill?tab=readme-ov-file#tree-shakable-api) as well which will further reduce size.
41 lines
1.3 KiB
JavaScript
41 lines
1.3 KiB
JavaScript
import {Temporal} from 'temporal-polyfill';
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export function toAbsoluteLocaleDate(dateStr, lang, opts) {
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return Temporal.PlainDate.from(dateStr).toLocaleString(lang ?? [], opts);
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}
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window.customElements.define('absolute-date', class extends HTMLElement {
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static observedAttributes = ['date', 'year', 'month', 'weekday', 'day'];
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update = () => {
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const year = this.getAttribute('year') ?? '';
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const month = this.getAttribute('month') ?? '';
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const weekday = this.getAttribute('weekday') ?? '';
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const day = this.getAttribute('day') ?? '';
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const lang = this.closest('[lang]')?.getAttribute('lang') ||
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this.ownerDocument.documentElement.getAttribute('lang') || '';
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// only use the first 10 characters, e.g. the `yyyy-mm-dd` part
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const dateStr = this.getAttribute('date').substring(0, 10);
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if (!this.shadowRoot) this.attachShadow({mode: 'open'});
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this.shadowRoot.textContent = toAbsoluteLocaleDate(dateStr, lang, {
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...(year && {year}),
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...(month && {month}),
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...(weekday && {weekday}),
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...(day && {day}),
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});
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};
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attributeChangedCallback(_name, oldValue, newValue) {
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if (!this.initialized || oldValue === newValue) return;
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this.update();
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}
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connectedCallback() {
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this.initialized = false;
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this.update();
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this.initialized = true;
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}
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});
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