summaryrefslogtreecommitdiff
path: root/node_modules/moment/src/lib/units/offset.js
diff options
context:
space:
mode:
authorAlexander Neonxp Kiryukhin <i@neonxp.ru>2024-08-18 13:29:54 +0300
committerAlexander Neonxp Kiryukhin <i@neonxp.ru>2024-08-18 13:29:54 +0300
commitfd70f95224374d23157ee7c0357733102cd0df53 (patch)
treee490c12e021cedaf211b292d5d623baa32a673fc /node_modules/moment/src/lib/units/offset.js
initialHEADmaster
Diffstat (limited to 'node_modules/moment/src/lib/units/offset.js')
-rw-r--r--node_modules/moment/src/lib/units/offset.js249
1 files changed, 249 insertions, 0 deletions
diff --git a/node_modules/moment/src/lib/units/offset.js b/node_modules/moment/src/lib/units/offset.js
new file mode 100644
index 0000000..668ebb9
--- /dev/null
+++ b/node_modules/moment/src/lib/units/offset.js
@@ -0,0 +1,249 @@
+import zeroFill from '../utils/zero-fill';
+import { createDuration } from '../duration/create';
+import { addSubtract } from '../moment/add-subtract';
+import { isMoment, copyConfig } from '../moment/constructor';
+import { addFormatToken } from '../format/format';
+import { addRegexToken, matchOffset, matchShortOffset } from '../parse/regex';
+import { addParseToken } from '../parse/token';
+import { createLocal } from '../create/local';
+import { prepareConfig } from '../create/from-anything';
+import { createUTC } from '../create/utc';
+import isDate from '../utils/is-date';
+import toInt from '../utils/to-int';
+import isUndefined from '../utils/is-undefined';
+import compareArrays from '../utils/compare-arrays';
+import { hooks } from '../utils/hooks';
+
+// FORMATTING
+
+function offset(token, separator) {
+ addFormatToken(token, 0, 0, function () {
+ var offset = this.utcOffset(),
+ sign = '+';
+ if (offset < 0) {
+ offset = -offset;
+ sign = '-';
+ }
+ return (
+ sign +
+ zeroFill(~~(offset / 60), 2) +
+ separator +
+ zeroFill(~~offset % 60, 2)
+ );
+ });
+}
+
+offset('Z', ':');
+offset('ZZ', '');
+
+// PARSING
+
+addRegexToken('Z', matchShortOffset);
+addRegexToken('ZZ', matchShortOffset);
+addParseToken(['Z', 'ZZ'], function (input, array, config) {
+ config._useUTC = true;
+ config._tzm = offsetFromString(matchShortOffset, input);
+});
+
+// HELPERS
+
+// timezone chunker
+// '+10:00' > ['10', '00']
+// '-1530' > ['-15', '30']
+var chunkOffset = /([\+\-]|\d\d)/gi;
+
+function offsetFromString(matcher, string) {
+ var matches = (string || '').match(matcher),
+ chunk,
+ parts,
+ minutes;
+
+ if (matches === null) {
+ return null;
+ }
+
+ chunk = matches[matches.length - 1] || [];
+ parts = (chunk + '').match(chunkOffset) || ['-', 0, 0];
+ minutes = +(parts[1] * 60) + toInt(parts[2]);
+
+ return minutes === 0 ? 0 : parts[0] === '+' ? minutes : -minutes;
+}
+
+// Return a moment from input, that is local/utc/zone equivalent to model.
+export function cloneWithOffset(input, model) {
+ var res, diff;
+ if (model._isUTC) {
+ res = model.clone();
+ diff =
+ (isMoment(input) || isDate(input)
+ ? input.valueOf()
+ : createLocal(input).valueOf()) - res.valueOf();
+ // Use low-level api, because this fn is low-level api.
+ res._d.setTime(res._d.valueOf() + diff);
+ hooks.updateOffset(res, false);
+ return res;
+ } else {
+ return createLocal(input).local();
+ }
+}
+
+function getDateOffset(m) {
+ // On Firefox.24 Date#getTimezoneOffset returns a floating point.
+ // https://github.com/moment/moment/pull/1871
+ return -Math.round(m._d.getTimezoneOffset());
+}
+
+// HOOKS
+
+// This function will be called whenever a moment is mutated.
+// It is intended to keep the offset in sync with the timezone.
+hooks.updateOffset = function () {};
+
+// MOMENTS
+
+// keepLocalTime = true means only change the timezone, without
+// affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->
+// 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset
+// +0200, so we adjust the time as needed, to be valid.
+//
+// Keeping the time actually adds/subtracts (one hour)
+// from the actual represented time. That is why we call updateOffset
+// a second time. In case it wants us to change the offset again
+// _changeInProgress == true case, then we have to adjust, because
+// there is no such time in the given timezone.
+export function getSetOffset(input, keepLocalTime, keepMinutes) {
+ var offset = this._offset || 0,
+ localAdjust;
+ if (!this.isValid()) {
+ return input != null ? this : NaN;
+ }
+ if (input != null) {
+ if (typeof input === 'string') {
+ input = offsetFromString(matchShortOffset, input);
+ if (input === null) {
+ return this;
+ }
+ } else if (Math.abs(input) < 16 && !keepMinutes) {
+ input = input * 60;
+ }
+ if (!this._isUTC && keepLocalTime) {
+ localAdjust = getDateOffset(this);
+ }
+ this._offset = input;
+ this._isUTC = true;
+ if (localAdjust != null) {
+ this.add(localAdjust, 'm');
+ }
+ if (offset !== input) {
+ if (!keepLocalTime || this._changeInProgress) {
+ addSubtract(
+ this,
+ createDuration(input - offset, 'm'),
+ 1,
+ false
+ );
+ } else if (!this._changeInProgress) {
+ this._changeInProgress = true;
+ hooks.updateOffset(this, true);
+ this._changeInProgress = null;
+ }
+ }
+ return this;
+ } else {
+ return this._isUTC ? offset : getDateOffset(this);
+ }
+}
+
+export function getSetZone(input, keepLocalTime) {
+ if (input != null) {
+ if (typeof input !== 'string') {
+ input = -input;
+ }
+
+ this.utcOffset(input, keepLocalTime);
+
+ return this;
+ } else {
+ return -this.utcOffset();
+ }
+}
+
+export function setOffsetToUTC(keepLocalTime) {
+ return this.utcOffset(0, keepLocalTime);
+}
+
+export function setOffsetToLocal(keepLocalTime) {
+ if (this._isUTC) {
+ this.utcOffset(0, keepLocalTime);
+ this._isUTC = false;
+
+ if (keepLocalTime) {
+ this.subtract(getDateOffset(this), 'm');
+ }
+ }
+ return this;
+}
+
+export function setOffsetToParsedOffset() {
+ if (this._tzm != null) {
+ this.utcOffset(this._tzm, false, true);
+ } else if (typeof this._i === 'string') {
+ var tZone = offsetFromString(matchOffset, this._i);
+ if (tZone != null) {
+ this.utcOffset(tZone);
+ } else {
+ this.utcOffset(0, true);
+ }
+ }
+ return this;
+}
+
+export function hasAlignedHourOffset(input) {
+ if (!this.isValid()) {
+ return false;
+ }
+ input = input ? createLocal(input).utcOffset() : 0;
+
+ return (this.utcOffset() - input) % 60 === 0;
+}
+
+export function isDaylightSavingTime() {
+ return (
+ this.utcOffset() > this.clone().month(0).utcOffset() ||
+ this.utcOffset() > this.clone().month(5).utcOffset()
+ );
+}
+
+export function isDaylightSavingTimeShifted() {
+ if (!isUndefined(this._isDSTShifted)) {
+ return this._isDSTShifted;
+ }
+
+ var c = {},
+ other;
+
+ copyConfig(c, this);
+ c = prepareConfig(c);
+
+ if (c._a) {
+ other = c._isUTC ? createUTC(c._a) : createLocal(c._a);
+ this._isDSTShifted =
+ this.isValid() && compareArrays(c._a, other.toArray()) > 0;
+ } else {
+ this._isDSTShifted = false;
+ }
+
+ return this._isDSTShifted;
+}
+
+export function isLocal() {
+ return this.isValid() ? !this._isUTC : false;
+}
+
+export function isUtcOffset() {
+ return this.isValid() ? this._isUTC : false;
+}
+
+export function isUtc() {
+ return this.isValid() ? this._isUTC && this._offset === 0 : false;
+}