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@ -1,30 +1,28 @@ |
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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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export function toAbsoluteLocaleDate(date: string, lang: string, opts: Intl.DateTimeFormatOptions) { |
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return new Date(date).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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initialized = false; |
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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 opt: Intl.DateTimeFormatOptions = {}; |
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for (const attr of ['year', 'month', 'weekday', 'day']) { |
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if (this.getAttribute(attr)) opt[attr] = this.getAttribute(attr); |
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} |
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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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// only use the date part, it is guaranteed to be in ISO format (YYYY-MM-DDTHH:mm:ss.sssZ)
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let date = this.getAttribute('date'); |
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let dateSep = date.indexOf('T'); |
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dateSep = dateSep === -1 ? date.indexOf(' ') : dateSep; |
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date = dateSep === -1 ? date : date.substring(0, dateSep); |
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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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this.shadowRoot.textContent = toAbsoluteLocaleDate(date, lang, opt); |
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}; |
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attributeChangedCallback(_name, oldValue, newValue) { |
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