61 lines
1.7 KiB
JavaScript
61 lines
1.7 KiB
JavaScript
/**
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* DO NOT EDIT THIS FILE.
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* See the following change record for more information,
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* https://www.drupal.org/node/2815083
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* @preserve
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**/
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(function ($, Drupal) {
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Drupal.behaviors.setTimezone = {
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attach(context, settings) {
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const timezone = once('timezone', '.timezone-detect', context);
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if (timezone.length) {
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const $timezone = $(timezone);
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const tz = new Intl.DateTimeFormat().resolvedOptions().timeZone;
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if (tz && $timezone.find(`option[value="${tz}"]`).length) {
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$timezone.val(tz);
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return;
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}
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const dateString = Date();
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const matches = dateString.match(/\(([A-Z]{3,5})\)/);
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const abbreviation = matches ? matches[1] : 0;
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const dateNow = new Date();
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const offsetNow = dateNow.getTimezoneOffset() * -60;
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const dateJan = new Date(dateNow.getFullYear(), 0, 1, 12, 0, 0, 0);
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const dateJul = new Date(dateNow.getFullYear(), 6, 1, 12, 0, 0, 0);
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const offsetJan = dateJan.getTimezoneOffset() * -60;
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const offsetJul = dateJul.getTimezoneOffset() * -60;
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let isDaylightSavingTime;
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if (offsetJan === offsetJul) {
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isDaylightSavingTime = '';
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} else if (Math.max(offsetJan, offsetJul) === offsetNow) {
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isDaylightSavingTime = 1;
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} else {
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isDaylightSavingTime = 0;
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}
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const path = `system/timezone/${abbreviation}/${offsetNow}/${isDaylightSavingTime}`;
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$.ajax({
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async: false,
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url: Drupal.url(path),
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data: {
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date: dateString
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},
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dataType: 'json',
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success(data) {
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if (data) {
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$timezone.val(data);
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}
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}
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});
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}
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}
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};
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})(jQuery, Drupal); |