lion/packages/ui/components/calendar/utils/dayTemplate.js
2022-10-31 16:55:07 +01:00

86 lines
2.7 KiB
JavaScript

import { html } from 'lit';
import { ifDefined } from 'lit/directives/if-defined.js';
const defaultMonthLabels = [
'January',
'February',
'March',
'April',
'May',
'June',
'July',
'August',
'September',
'October',
'November',
'December',
];
const firstWeekDays = [1, 2, 3, 4, 5, 6, 7];
const lastDaysOfYear = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
/**
*
* @param {import('../../types/day').Day} day
* @param {{ weekdays: string[], monthsLabels?: string[] }} opts
*/
export function dayTemplate(day, { weekdays, monthsLabels = defaultMonthLabels }) {
const dayNumber = day.date.getDate();
const monthName = monthsLabels[day.date.getMonth()];
const year = day.date.getFullYear();
const weekdayName = day.weekOrder ? weekdays[day.weekOrder] : weekdays[0];
const firstDay = dayNumber === 1;
const endOfFirstWeek = day.weekOrder === 6 && firstWeekDays.includes(dayNumber);
const startOfFirstFullWeek = day.startOfWeek && firstWeekDays.includes(dayNumber);
if (year % 4 === 0 && (year % 100 !== 0 || year % 400 === 0)) {
lastDaysOfYear[1] = 29;
}
const lastDayNumber = lastDaysOfYear[day.date.getMonth()];
const lastWeekDays = [];
for (let i = lastDayNumber; i >= lastDayNumber - 7; i -= 1) {
lastWeekDays.push(i);
}
const endOfLastFullWeek = day.weekOrder === 6 && lastWeekDays.includes(dayNumber);
const startOfLastWeek = day.startOfWeek && lastWeekDays.includes(dayNumber);
const lastDay = lastDayNumber === dayNumber;
return html`
<td
role="gridcell"
class="calendar__day-cell"
?current-month=${day.currentMonth}
?first-day=${firstDay}
?end-of-first-week=${endOfFirstWeek}
?start-of-first-full-week=${startOfFirstFullWeek}
?end-of-last-full-week=${endOfLastFullWeek}
?start-of-last-week=${startOfLastWeek}
?last-day=${lastDay}
>
<button
.date=${day.date}
class="calendar__day-button"
tabindex=${ifDefined(Number(day.tabindex))}
aria-label=${`${dayNumber} ${monthName} ${year} ${weekdayName}`}
aria-pressed=${
/** @type {'true'|'false'|'mixed'|'undefined'} */ (ifDefined(day.ariaPressed))
}
aria-current=${
/** @type {'page'|'step'|'location'|'date'|'time'|'true'|'false'} */ (
ifDefined(day.ariaCurrent)
)
}
?disabled=${day.disabled}
?selected=${day.selected}
?past=${day.past}
?today=${day.today}
?future=${day.future}
?previous-month=${day.previousMonth}
?current-month=${day.currentMonth}
?next-month=${day.nextMonth}
>
<span class="calendar__day-button__text"> ${day.date.getDate()} </span>
</button>
</td>
`;
}