@blueprintjs/datetime
Version:
Components for interacting with dates and times
73 lines • 3.38 kB
JavaScript
;
/*
* Copyright 2022 Palantir Technologies, Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.getInitialTimezoneItems = exports.mapTimezonesWithNames = exports.getTimezoneNames = exports.getTimezoneShortName = exports.isValidTimezone = void 0;
const date_fns_tz_1 = require("date-fns-tz");
const getTimezone_1 = require("./getTimezone");
const timezoneItems_1 = require("./timezoneItems");
const CURRENT_DATE = Date.now();
const LONG_NAME_FORMAT_STR = "zzzz";
const SHORT_NAME_FORMAT_STR = "zzz";
function isValidTimezone(timeZone) {
if (timeZone === undefined) {
return false;
}
try {
Intl.DateTimeFormat(undefined, { timeZone });
return true;
}
catch (e) {
return false;
}
}
exports.isValidTimezone = isValidTimezone;
function getTimezoneShortName(tzIanaCode, date) {
return (0, date_fns_tz_1.formatInTimeZone)(date !== null && date !== void 0 ? date : CURRENT_DATE, tzIanaCode, SHORT_NAME_FORMAT_STR);
}
exports.getTimezoneShortName = getTimezoneShortName;
/**
* Augments a simple {@link Timezone} metadata object with long and short names formatted by `date-fns-tz`.
*/
function getTimezoneNames(tz, date = CURRENT_DATE) {
return {
...tz,
longName: (0, date_fns_tz_1.formatInTimeZone)(date, tz.ianaCode, LONG_NAME_FORMAT_STR),
shortName: (0, date_fns_tz_1.formatInTimeZone)(date, tz.ianaCode, SHORT_NAME_FORMAT_STR),
};
}
exports.getTimezoneNames = getTimezoneNames;
const mapTimezonesWithNames = (date, timezones) => timezones.map(tz => getTimezoneNames(tz, date));
exports.mapTimezonesWithNames = mapTimezonesWithNames;
function getInitialTimezoneItems(date, showLocalTimezone) {
const systemTimezone = (0, getTimezone_1.getCurrentTimezone)();
const localTimezone = showLocalTimezone
? timezoneItems_1.TIMEZONE_ITEMS.find(timezone => timezone.ianaCode === systemTimezone)
: undefined;
const localTimezoneItem = localTimezone !== undefined
? {
...localTimezone,
longName: "Current timezone",
shortName: (0, date_fns_tz_1.formatInTimeZone)(date !== null && date !== void 0 ? date : CURRENT_DATE, localTimezone.ianaCode, SHORT_NAME_FORMAT_STR),
}
: undefined;
const minimalTimezoneItemsWithNames = (0, exports.mapTimezonesWithNames)(date, timezoneItems_1.MINIMAL_TIMEZONE_ITEMS).filter(tz => tz.ianaCode !== (localTimezoneItem === null || localTimezoneItem === void 0 ? void 0 : localTimezoneItem.ianaCode));
return localTimezoneItem === undefined
? minimalTimezoneItemsWithNames
: [localTimezoneItem, ...minimalTimezoneItemsWithNames];
}
exports.getInitialTimezoneItems = getInitialTimezoneItems;
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