nextcloud-calendar/src/fullcalendar/vtimezoneNamedTimezoneImpl.js

69 lines
2.1 KiB
JavaScript

/**
* @copyright Copyright (c) 2019 Georg Ehrke
*
* @author Georg Ehrke <oc.list@georgehrke.com>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
import {
NamedTimeZoneImpl,
createPlugin,
} from '@fullcalendar/core'
import getTimezoneManager from '../services/timezoneDataProviderService'
/**
* Our own FullCalendar Timezone implementation based on the VTimezones we ship
*/
class VTimezoneNamedTimezone extends NamedTimeZoneImpl {
/**
* gets UTC offset for given date of this timezone
*
* @param {Number[]} date an array that mirrors the parameters from new Date()
* @returns {Number} offset in minutes
*/
offsetForArray([year, month, day, hour, minute, second]) {
const timezone = getTimezoneManager().getTimezoneForId(this.timeZoneName)
// calendar-js works with natural month numbers,
// not the javascript 0-based ones
month += 1
return timezone.offsetForArray(year, month, day, hour, minute, second) / 60
}
/**
* returns parameters for Date object in this timezone based on given timestamp
*
* @param {Number} ms Timestamp in milliseconds
* @returns {Number[]}
*/
timestampToArray(ms) {
const timezone = getTimezoneManager().getTimezoneForId(this.timeZoneName)
const timestampArray = timezone.timestampToArray(ms)
// calendar-js works with natural month numbers,
// not the javascript 0-based ones
timestampArray[1]--
return timestampArray
}
}
export default createPlugin({
namedTimeZonedImpl: VTimezoneNamedTimezone,
})