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* feat: set custom timezone options from New York os time to Seoul custom timezone * feat: resolve custom timezone spec * refactor: refactor timezone diff offset logic * test: resolve broken TC * test: add initUtil TC * refactor: support breaking changes for timezoneOffset property * style: revert eslint style * refactor: remove unnecessary code * test: resolve broken TC * refactor: refactor duration code * refactor: remove console log * fix: recalculate detail popup time * fix: resolve creation popup for using dst timezone * refactor: apply PR feedbacks * refactor: add type declaration for timezone option and refactor timezone example * test: add intl polyfill for initUtil TC * test: add weakmap polyfill for intl.dateTimeFormat polyfill * test: add getCanonical polyfill * test: add Set polyfill * test: resolve TC * test: resolve broken TC * test: add require locale data * test: add intl.numberFormat * test: add intl.locale polyfill * test: add numberformat local data * test: change polyfill * test: add locale data polyfill * test: resolve broken TC * test: remove numberformat locale-data polyfill * test: resolve broken TC (locae data) * chore: remove unnecessary dev dependency * test: change intl polyfill * test: add comment * refactor: remove unnecessary title text
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| 'use strict'; | ||
|
|
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| var util = require('tui-code-snippet'); | ||
| var intlFormatter = {}; | ||
| var intlUtil; | ||
|
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| var typeToPos = { | ||
| year: 0, | ||
| month: 1, | ||
| day: 2, | ||
| hour: 3, | ||
| minute: 4, | ||
| second: 5 | ||
| }; | ||
|
|
||
| /** | ||
| * Extract date tokens (y, M, d, h, m, s) using the formatToParts() method. | ||
| * @param {Intl.DateTimeFormat} dtf - Intl.DateTimeFormat instance | ||
| * @param {Date} date - date object | ||
| * @returns {Array.<number>} An array of objects only containing the formatted date | ||
| */ | ||
| function parseOffset(dtf, date) { | ||
| var formatted = dtf.formatToParts(date); | ||
| var filled = []; | ||
| var formattedLength = formatted.length; | ||
| var i, pos; | ||
|
|
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| for (i = 0; i < formattedLength; i += 1) { | ||
| pos = typeToPos[formatted[i].type]; | ||
|
|
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| if (!util.isUndefined(pos)) { | ||
| filled[pos] = parseInt(formatted[i].value, 10); | ||
| } | ||
| } | ||
|
|
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| return filled; | ||
| } | ||
|
|
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| /** | ||
| * The time zone offset is calculated from the difference between the current time and the time in a specific time zone. | ||
| * @param {Array.<number>} parts - An array of objects only containing the formatted date (e.g. [2020, 12, 14, 10, 15, 19]) | ||
| * @param {Date} date - date object | ||
| * @returns {number} offset | ||
| */ | ||
| function calculateOffset(parts, date) { | ||
| var y = parts[0]; | ||
| var M = parts[1]; | ||
| var d = parts[2]; | ||
| var h = parts[3]; | ||
| var m = parts[4]; | ||
| var s = parts[5]; | ||
|
|
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| var utc = new Date(Date.UTC(y, M - 1, d, h, m, s)); | ||
| var offset = (utc - date) / 60 / 1000; | ||
|
|
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| return Math.round(offset); | ||
| } | ||
|
|
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| /** | ||
| * Check if browser supports Intl.DateTimeFormat.prototype.formatToParts API | ||
| * @returns {boolean} supported | ||
| */ | ||
| function supportIntl() { | ||
| /** | ||
| * IE9 and IE10 do not support Intl.DateTimeFormat | ||
| * IE11 does not support IANA timezone names | ||
| * http://kangax.github.io/compat-table/esintl/#test-DateTimeFormat_accepts_IANA_timezone_names | ||
| */ | ||
| return global.Intl && global.Intl.DateTimeFormat && | ||
| util.isFunction(Intl.DateTimeFormat.prototype.formatToParts); | ||
| } | ||
|
|
||
| /** | ||
| * Return DateTimeFormat instance by timezone | ||
| * @param {string} timezoneName - timezone | ||
| * @returns {DateTimeFormat} Intl.DateTimeFormat instance | ||
| */ | ||
| function getIntlFormatter(timezoneName) { | ||
| if (!intlFormatter[timezoneName]) { | ||
| intlFormatter[timezoneName] = new Intl.DateTimeFormat('en-US', { | ||
| hourCycle: 'h23', | ||
| year: 'numeric', | ||
| month: 'numeric', | ||
| day: 'numeric', | ||
| hour: 'numeric', | ||
| minute: 'numeric', | ||
| second: 'numeric', | ||
| timeZone: timezoneName | ||
| }); | ||
| } | ||
|
|
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| return intlFormatter[timezoneName]; | ||
| } | ||
|
|
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| /** | ||
| * Get offset of the time by timezone | ||
| * @param {string} timezoneName - recognize the time zone names of the IANA time zone database, such as 'Asia/Seoul', 'America/New_York' | ||
| * @param {number} timestamp - timestamp | ||
| * @returns {number} offset | ||
| */ | ||
| function offsetCalculator(timezoneName, timestamp) { | ||
| var formatter = getIntlFormatter(timezoneName); | ||
| var date = new Date(timestamp); | ||
|
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| return -calculateOffset(parseOffset(formatter, date), date); | ||
| } | ||
|
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| intlUtil = { | ||
| supportIntl: supportIntl, | ||
| offsetCalculator: offsetCalculator | ||
| }; | ||
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| module.exports = intlUtil; |
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