talksik
82 lines
3.0 KiB
JavaScript
82 lines
3.0 KiB
JavaScript
(function (global, factory) {
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typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
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typeof define === 'function' && define.amd ? define(factory) :
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(global = typeof globalThis !== 'undefined' ? globalThis : global || self, (global.date = global.date || {}, global.date.plugin = global.date.plugin || {}, global.date.plugin.timezone = factory()));
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})(this, (function () { 'use strict';
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/**
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* @preserve date-and-time.js plugin
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* @preserve timezone
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*/
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var plugin = function (date, localized_date) {
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var options = {
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year: 'numeric', month: 'numeric', day: 'numeric',
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hour: 'numeric', minute: 'numeric', second: 'numeric'
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};
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var pattern = date.compile('M/D/Y, h:mm:ss A');
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var formatTZ = function (dateObj, arg, timeZone) {
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options.timeZone = 'UTC';
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var utcObj = date.parse(new Intl.DateTimeFormat('en-US', options).format(dateObj), pattern);
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options.timeZone = timeZone;
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var dateObj2 = date.parse(new Intl.DateTimeFormat('en-US', options).format(dateObj), pattern);
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var dateObj3 = date.addMilliseconds(dateObj2, dateObj.getMilliseconds());
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dateObj3.getTimezoneOffset = function () { return (utcObj.getTime() - dateObj2.getTime()) / 60000 | 0; };
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return localized_date.format(dateObj3, arg);
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};
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var adjustments = [
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-60, -30, -20,
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0,
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60, 30, 20
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];
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var parseTZ = function (dateString, arg, timeZone) {
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var pattern2 = typeof arg === 'string' ? date.compile(arg) : arg;
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var dateObj = localized_date.parse(dateString, pattern2, true);
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for (var i = 1, len = pattern2.length; i < len; i++) {
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if (pattern2[i].indexOf('Z') === 0) {
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return dateObj;
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}
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}
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options.timeZone = timeZone;
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var dateTimeFormat = new Intl.DateTimeFormat('en-US', options);
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var dateObj2 = date.addMilliseconds(
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date.parse(dateTimeFormat.format(dateObj), pattern, true),
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dateObj.getMilliseconds()
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);
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var offset = dateObj.getTime() - dateObj2.getTime();
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var dateString2 = date.format(localized_date.parse(dateString, pattern2), pattern);
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var comparer = function (d) {
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return dateString2 === dateTimeFormat.format(d);
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};
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// Trying to adjust for daylight saving time.
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for (var j = 0, len2 = adjustments.length; j < len2; j++) {
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var d = date.addMilliseconds(dateObj, offset + adjustments[j] * 60000);
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if (comparer(d)) {
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return d;
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}
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}
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return NaN;
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};
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var name = 'timezone';
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date.plugin(name, {
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extender: {
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formatTZ: formatTZ,
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parseTZ: parseTZ
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}
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});
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return name;
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};
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return plugin;
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}));
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