| Path : /var/www/html/moneyexchange/public/assets/libs/flot/examples/axes-time-zones/ |
|
B-Con CMD Config cPanel C-Rdp D-Log Info Jump Mass Ransom Symlink vHost Zone-H |
| Current File : /var/www/html/moneyexchange/public/assets/libs/flot/examples/axes-time-zones/date.js |
// -----
// The `timezoneJS.Date` object gives you full-blown timezone support, independent from the timezone set on the end-user's machine running the browser. It uses the Olson zoneinfo files for its timezone data.
//
// The constructor function and setter methods use proxy JavaScript Date objects behind the scenes, so you can use strings like '10/22/2006' with the constructor. You also get the same sensible wraparound behavior with numeric parameters (like setting a value of 14 for the month wraps around to the next March).
//
// The other significant difference from the built-in JavaScript Date is that `timezoneJS.Date` also has named properties that store the values of year, month, date, etc., so it can be directly serialized to JSON and used for data transfer.
/*
* Copyright 2010 Matthew Eernisse (mde@fleegix.org)
* and Open Source Applications Foundation
*
* 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.
*
* Credits: Ideas included from incomplete JS implementation of Olson
* parser, "XMLDAte" by Philippe Goetz (philippe.goetz@wanadoo.fr)
*
* Contributions:
* Jan Niehusmann
* Ricky Romero
* Preston Hunt (prestonhunt@gmail.com)
* Dov. B Katz (dov.katz@morganstanley.com)
* Peter Bergström (pbergstr@mac.com)
* Long Ho
*/
(function () {
// Standard initialization stuff to make sure the library is
// usable on both client and server (node) side.
var root = this;
var timezoneJS;
if (typeof exports !== "undefined") {
timezoneJS = exports;
} else {
timezoneJS = root.timezoneJS = {};
}
timezoneJS.VERSION = "1.0.0";
// Grab the ajax library from global context.
// This can be jQuery, Zepto or fleegix.
// You can also specify your own transport mechanism by declaring
// `timezoneJS.timezone.transport` to a `function`. More details will follow
var $ = root.$ || root.jQuery || root.Zepto,
fleegix = root.fleegix,
// Declare constant list of days and months. Unfortunately this doesn't leave room for i18n due to the Olson data being in English itself
DAYS = (timezoneJS.Days = [
"Sunday",
"Monday",
"Tuesday",
"Wednesday",
"Thursday",
"Friday",
"Saturday",
]),
MONTHS = (timezoneJS.Months = [
"January",
"February",
"March",
"April",
"May",
"June",
"July",
"August",
"September",
"October",
"November",
"December",
]),
SHORT_MONTHS = {},
SHORT_DAYS = {},
EXACT_DATE_TIME = {},
TZ_REGEXP = new RegExp("^[a-zA-Z]+/");
//`{ "Jan": 0, "Feb": 1, "Mar": 2, "Apr": 3, "May": 4, "Jun": 5, "Jul": 6, "Aug": 7, "Sep": 8, "Oct": 9, "Nov": 10, "Dec": 11 }`
for (var i = 0; i < MONTHS.length; i++) {
SHORT_MONTHS[MONTHS[i].substr(0, 3)] = i;
}
//`{ "Sun": 0, "Mon": 1, "Tue": 2, "Wed": 3, "Thu": 4, "Fri": 5, "Sat": 6 }`
for (i = 0; i < DAYS.length; i++) {
SHORT_DAYS[DAYS[i].substr(0, 3)] = i;
}
//Handle array indexOf in IE
if (!Array.prototype.indexOf) {
Array.prototype.indexOf = function (el) {
for (var i = 0; i < this.length; i++) {
if (el === this[i]) return i;
}
return -1;
};
}
// Format a number to the length = digits. For ex:
//
// `_fixWidth(2, 2) = '02'`
//
// `_fixWidth(1998, 2) = '98'`
//
// This is used to pad numbers in converting date to string in ISO standard.
var _fixWidth = function (number, digits) {
if (typeof number !== "number") {
throw "not a number: " + number;
}
var s = number.toString();
if (number.length > digits) {
return number.substr(number.length - digits, number.length);
}
while (s.length < digits) {
s = "0" + s;
}
return s;
};
// Abstraction layer for different transport layers, including fleegix/jQuery/Zepto
//
// Object `opts` include
//
// - `url`: url to ajax query
//
// - `async`: true for asynchronous, false otherwise. If false, return value will be response from URL. This is true by default
//
// - `success`: success callback function
//
// - `error`: error callback function
// Returns response from URL if async is false, otherwise the AJAX request object itself
var _transport = function (opts) {
if (
(!fleegix || typeof fleegix.xhr === "undefined") &&
(!$ || typeof $.ajax === "undefined")
) {
throw new Error(
"Please use the Fleegix.js XHR module, jQuery ajax, Zepto ajax, or define your own transport mechanism for downloading zone files."
);
}
if (!opts) return;
if (!opts.url) throw new Error("URL must be specified");
if (!("async" in opts)) opts.async = true;
if (!opts.async) {
return fleegix && fleegix.xhr
? fleegix.xhr.doReq({ url: opts.url, async: false })
: $.ajax({ url: opts.url, async: false }).responseText;
}
return fleegix && fleegix.xhr
? fleegix.xhr.send({
url: opts.url,
method: "get",
handleSuccess: opts.success,
handleErr: opts.error,
})
: $.ajax({
url: opts.url,
dataType: "text",
method: "GET",
error: opts.error,
success: opts.success,
});
};
// Constructor, which is similar to that of the native Date object itself
timezoneJS.Date = function () {
var args = Array.prototype.slice.apply(arguments),
dt = null,
tz = null,
arr = [];
//We support several different constructors, including all the ones from `Date` object
// with a timezone string at the end.
//
//- `[tz]`: Returns object with time in `tz` specified.
//
// - `utcMillis`, `[tz]`: Return object with UTC time = `utcMillis`, in `tz`.
//
// - `Date`, `[tz]`: Returns object with UTC time = `Date.getTime()`, in `tz`.
//
// - `year, month, [date,] [hours,] [minutes,] [seconds,] [millis,] [tz]: Same as `Date` object
// with tz.
//
// - `Array`: Can be any combo of the above.
//
//If 1st argument is an array, we can use it as a list of arguments itself
if (Object.prototype.toString.call(args[0]) === "[object Array]") {
args = args[0];
}
if (
typeof args[args.length - 1] === "string" &&
TZ_REGEXP.test(args[args.length - 1])
) {
tz = args.pop();
}
switch (args.length) {
case 0:
dt = new Date();
break;
case 1:
dt = new Date(args[0]);
break;
default:
for (var i = 0; i < 7; i++) {
arr[i] = args[i] || 0;
}
dt = new Date(arr[0], arr[1], arr[2], arr[3], arr[4], arr[5], arr[6]);
break;
}
this._useCache = false;
this._tzInfo = {};
this._day = 0;
this.year = 0;
this.month = 0;
this.date = 0;
this.hours = 0;
this.minutes = 0;
this.seconds = 0;
this.milliseconds = 0;
this.timezone = tz || null;
//Tricky part:
// For the cases where there are 1/2 arguments: `timezoneJS.Date(millis, [tz])` and `timezoneJS.Date(Date, [tz])`. The
// Date `dt` created should be in UTC. Thus the way I detect such cases is to determine if `arr` is not populated & `tz`
// is specified. Because if `tz` is not specified, `dt` can be in local time.
if (arr.length) {
this.setFromDateObjProxy(dt);
} else {
this.setFromTimeProxy(dt.getTime(), tz);
}
};
// Implements most of the native Date object
timezoneJS.Date.prototype = {
getDate: function () {
return this.date;
},
getDay: function () {
return this._day;
},
getFullYear: function () {
return this.year;
},
getMonth: function () {
return this.month;
},
getYear: function () {
return this.year;
},
getHours: function () {
return this.hours;
},
getMilliseconds: function () {
return this.milliseconds;
},
getMinutes: function () {
return this.minutes;
},
getSeconds: function () {
return this.seconds;
},
getUTCDate: function () {
return this.getUTCDateProxy().getUTCDate();
},
getUTCDay: function () {
return this.getUTCDateProxy().getUTCDay();
},
getUTCFullYear: function () {
return this.getUTCDateProxy().getUTCFullYear();
},
getUTCHours: function () {
return this.getUTCDateProxy().getUTCHours();
},
getUTCMilliseconds: function () {
return this.getUTCDateProxy().getUTCMilliseconds();
},
getUTCMinutes: function () {
return this.getUTCDateProxy().getUTCMinutes();
},
getUTCMonth: function () {
return this.getUTCDateProxy().getUTCMonth();
},
getUTCSeconds: function () {
return this.getUTCDateProxy().getUTCSeconds();
},
// Time adjusted to user-specified timezone
getTime: function () {
return this._timeProxy + this.getTimezoneOffset() * 60 * 1000;
},
getTimezone: function () {
return this.timezone;
},
getTimezoneOffset: function () {
return this.getTimezoneInfo().tzOffset;
},
getTimezoneAbbreviation: function () {
return this.getTimezoneInfo().tzAbbr;
},
getTimezoneInfo: function () {
if (this._useCache) return this._tzInfo;
var res;
// If timezone is specified, get the correct timezone info based on the Date given
if (this.timezone) {
res =
this.timezone === "Etc/UTC" || this.timezone === "Etc/GMT"
? { tzOffset: 0, tzAbbr: "UTC" }
: timezoneJS.timezone.getTzInfo(this._timeProxy, this.timezone);
}
// If no timezone was specified, use the local browser offset
else {
res = { tzOffset: this.getLocalOffset(), tzAbbr: null };
}
this._tzInfo = res;
this._useCache = true;
return res;
},
getUTCDateProxy: function () {
var dt = new Date(this._timeProxy);
dt.setUTCMinutes(dt.getUTCMinutes() + this.getTimezoneOffset());
return dt;
},
setDate: function (n) {
this.setAttribute("date", n);
},
setFullYear: function (n) {
this.setAttribute("year", n);
},
setMonth: function (n) {
this.setAttribute("month", n);
},
setYear: function (n) {
this.setUTCAttribute("year", n);
},
setHours: function (n) {
this.setAttribute("hours", n);
},
setMilliseconds: function (n) {
this.setAttribute("milliseconds", n);
},
setMinutes: function (n) {
this.setAttribute("minutes", n);
},
setSeconds: function (n) {
this.setAttribute("seconds", n);
},
setTime: function (n) {
if (isNaN(n)) {
throw new Error("Units must be a number.");
}
this.setFromTimeProxy(n, this.timezone);
},
setUTCDate: function (n) {
this.setUTCAttribute("date", n);
},
setUTCFullYear: function (n) {
this.setUTCAttribute("year", n);
},
setUTCHours: function (n) {
this.setUTCAttribute("hours", n);
},
setUTCMilliseconds: function (n) {
this.setUTCAttribute("milliseconds", n);
},
setUTCMinutes: function (n) {
this.setUTCAttribute("minutes", n);
},
setUTCMonth: function (n) {
this.setUTCAttribute("month", n);
},
setUTCSeconds: function (n) {
this.setUTCAttribute("seconds", n);
},
setFromDateObjProxy: function (dt) {
this.year = dt.getFullYear();
this.month = dt.getMonth();
this.date = dt.getDate();
this.hours = dt.getHours();
this.minutes = dt.getMinutes();
this.seconds = dt.getSeconds();
this.milliseconds = dt.getMilliseconds();
this._day = dt.getDay();
this._dateProxy = dt;
this._timeProxy = Date.UTC(
this.year,
this.month,
this.date,
this.hours,
this.minutes,
this.seconds,
this.milliseconds
);
this._useCache = false;
},
setFromTimeProxy: function (utcMillis, tz) {
var dt = new Date(utcMillis);
var tzOffset;
tzOffset = tz
? timezoneJS.timezone.getTzInfo(dt, tz).tzOffset
: dt.getTimezoneOffset();
dt.setTime(utcMillis + (dt.getTimezoneOffset() - tzOffset) * 60000);
this.setFromDateObjProxy(dt);
},
setAttribute: function (unit, n) {
if (isNaN(n)) {
throw new Error("Units must be a number.");
}
var dt = this._dateProxy;
var meth =
unit === "year"
? "FullYear"
: unit.substr(0, 1).toUpperCase() + unit.substr(1);
dt["set" + meth](n);
this.setFromDateObjProxy(dt);
},
setUTCAttribute: function (unit, n) {
if (isNaN(n)) {
throw new Error("Units must be a number.");
}
var meth =
unit === "year"
? "FullYear"
: unit.substr(0, 1).toUpperCase() + unit.substr(1);
var dt = this.getUTCDateProxy();
dt["setUTC" + meth](n);
dt.setUTCMinutes(dt.getUTCMinutes() - this.getTimezoneOffset());
this.setFromTimeProxy(
dt.getTime() + this.getTimezoneOffset() * 60000,
this.timezone
);
},
setTimezone: function (tz) {
var previousOffset = this.getTimezoneInfo().tzOffset;
this.timezone = tz;
this._useCache = false;
// Set UTC minutes offsets by the delta of the two timezones
this.setUTCMinutes(
this.getUTCMinutes() - this.getTimezoneInfo().tzOffset + previousOffset
);
},
removeTimezone: function () {
this.timezone = null;
this._useCache = false;
},
valueOf: function () {
return this.getTime();
},
clone: function () {
return this.timezone
? new timezoneJS.Date(this.getTime(), this.timezone)
: new timezoneJS.Date(this.getTime());
},
toGMTString: function () {
return this.toString("EEE, dd MMM yyyy HH:mm:ss Z", "Etc/GMT");
},
toLocaleString: function () {},
toLocaleDateString: function () {},
toLocaleTimeString: function () {},
toSource: function () {},
toISOString: function () {
return this.toString("yyyy-MM-ddTHH:mm:ss.SSS", "Etc/UTC") + "Z";
},
toJSON: function () {
return this.toISOString();
},
// Allows different format following ISO8601 format:
toString: function (format, tz) {
// Default format is the same as toISOString
if (!format) format = "yyyy-MM-dd HH:mm:ss";
var result = format;
var tzInfo = tz
? timezoneJS.timezone.getTzInfo(this.getTime(), tz)
: this.getTimezoneInfo();
var _this = this;
// If timezone is specified, get a clone of the current Date object and modify it
if (tz) {
_this = this.clone();
_this.setTimezone(tz);
}
var hours = _this.getHours();
return (
result
// fix the same characters in Month names
.replace(/a+/g, function () {
return "k";
})
// `y`: year
.replace(/y+/g, function (token) {
return _fixWidth(_this.getFullYear(), token.length);
})
// `d`: date
.replace(/d+/g, function (token) {
return _fixWidth(_this.getDate(), token.length);
})
// `m`: minute
.replace(/m+/g, function (token) {
return _fixWidth(_this.getMinutes(), token.length);
})
// `s`: second
.replace(/s+/g, function (token) {
return _fixWidth(_this.getSeconds(), token.length);
})
// `S`: millisecond
.replace(/S+/g, function (token) {
return _fixWidth(_this.getMilliseconds(), token.length);
})
// `M`: month. Note: `MM` will be the numeric representation (e.g February is 02) but `MMM` will be text representation (e.g February is Feb)
.replace(/M+/g, function (token) {
var _month = _this.getMonth(),
_len = token.length;
if (_len > 3) {
return timezoneJS.Months[_month];
} else if (_len > 2) {
return timezoneJS.Months[_month].substring(0, _len);
}
return _fixWidth(_month + 1, _len);
})
// `k`: AM/PM
.replace(/k+/g, function () {
if (hours >= 12) {
if (hours > 12) {
hours -= 12;
}
return "PM";
}
return "AM";
})
// `H`: hour
.replace(/H+/g, function (token) {
return _fixWidth(hours, token.length);
})
// `E`: day
.replace(/E+/g, function (token) {
return DAYS[_this.getDay()].substring(0, token.length);
})
// `Z`: timezone abbreviation
.replace(/Z+/gi, function () {
return tzInfo.tzAbbr;
})
);
},
toUTCString: function () {
return this.toGMTString();
},
civilToJulianDayNumber: function (y, m, d) {
var a;
// Adjust for zero-based JS-style array
m++;
if (m > 12) {
a = parseInt(m / 12, 10);
m = m % 12;
y += a;
}
if (m <= 2) {
y -= 1;
m += 12;
}
a = Math.floor(y / 100);
var b = 2 - a + Math.floor(a / 4),
jDt =
Math.floor(365.25 * (y + 4716)) +
Math.floor(30.6001 * (m + 1)) +
d +
b -
1524;
return jDt;
},
getLocalOffset: function () {
return this._dateProxy.getTimezoneOffset();
},
};
timezoneJS.timezone = new (function () {
var _this = this,
regionMap = {
Etc: "etcetera",
EST: "northamerica",
MST: "northamerica",
HST: "northamerica",
EST5EDT: "northamerica",
CST6CDT: "northamerica",
MST7MDT: "northamerica",
PST8PDT: "northamerica",
America: "northamerica",
Pacific: "australasia",
Atlantic: "europe",
Africa: "africa",
Indian: "africa",
Antarctica: "antarctica",
Asia: "asia",
Australia: "australasia",
Europe: "europe",
WET: "europe",
CET: "europe",
MET: "europe",
EET: "europe",
},
regionExceptions = {
"Pacific/Honolulu": "northamerica",
"Atlantic/Bermuda": "northamerica",
"Atlantic/Cape_Verde": "africa",
"Atlantic/St_Helena": "africa",
"Indian/Kerguelen": "antarctica",
"Indian/Chagos": "asia",
"Indian/Maldives": "asia",
"Indian/Christmas": "australasia",
"Indian/Cocos": "australasia",
"America/Danmarkshavn": "europe",
"America/Scoresbysund": "europe",
"America/Godthab": "europe",
"America/Thule": "europe",
"Asia/Yekaterinburg": "europe",
"Asia/Omsk": "europe",
"Asia/Novosibirsk": "europe",
"Asia/Krasnoyarsk": "europe",
"Asia/Irkutsk": "europe",
"Asia/Yakutsk": "europe",
"Asia/Vladivostok": "europe",
"Asia/Sakhalin": "europe",
"Asia/Magadan": "europe",
"Asia/Kamchatka": "europe",
"Asia/Anadyr": "europe",
"Africa/Ceuta": "europe",
"America/Argentina/Buenos_Aires": "southamerica",
"America/Argentina/Cordoba": "southamerica",
"America/Argentina/Tucuman": "southamerica",
"America/Argentina/La_Rioja": "southamerica",
"America/Argentina/San_Juan": "southamerica",
"America/Argentina/Jujuy": "southamerica",
"America/Argentina/Catamarca": "southamerica",
"America/Argentina/Mendoza": "southamerica",
"America/Argentina/Rio_Gallegos": "southamerica",
"America/Argentina/Ushuaia": "southamerica",
"America/Aruba": "southamerica",
"America/La_Paz": "southamerica",
"America/Noronha": "southamerica",
"America/Belem": "southamerica",
"America/Fortaleza": "southamerica",
"America/Recife": "southamerica",
"America/Araguaina": "southamerica",
"America/Maceio": "southamerica",
"America/Bahia": "southamerica",
"America/Sao_Paulo": "southamerica",
"America/Campo_Grande": "southamerica",
"America/Cuiaba": "southamerica",
"America/Porto_Velho": "southamerica",
"America/Boa_Vista": "southamerica",
"America/Manaus": "southamerica",
"America/Eirunepe": "southamerica",
"America/Rio_Branco": "southamerica",
"America/Santiago": "southamerica",
"Pacific/Easter": "southamerica",
"America/Bogota": "southamerica",
"America/Curacao": "southamerica",
"America/Guayaquil": "southamerica",
"Pacific/Galapagos": "southamerica",
"Atlantic/Stanley": "southamerica",
"America/Cayenne": "southamerica",
"America/Guyana": "southamerica",
"America/Asuncion": "southamerica",
"America/Lima": "southamerica",
"Atlantic/South_Georgia": "southamerica",
"America/Paramaribo": "southamerica",
"America/Port_of_Spain": "southamerica",
"America/Montevideo": "southamerica",
"America/Caracas": "southamerica",
};
function invalidTZError(t) {
throw new Error(
'Timezone "' +
t +
'" is either incorrect, or not loaded in the timezone registry.'
);
}
function builtInLoadZoneFile(fileName, opts) {
var url = _this.zoneFileBasePath + "/" + fileName;
return !opts || !opts.async
? _this.parseZones(_this.transport({ url: url, async: false }))
: _this.transport({
async: true,
url: url,
success: function (str) {
if (
_this.parseZones(str) &&
typeof opts.callback === "function"
) {
opts.callback();
}
return true;
},
error: function () {
throw new Error('Error retrieving "' + url + '" zoneinfo files');
},
});
}
function getRegionForTimezone(tz) {
var exc = regionExceptions[tz],
reg,
ret;
if (exc) return exc;
reg = tz.split("/")[0];
ret = regionMap[reg];
// If there's nothing listed in the main regions for this TZ, check the 'backward' links
if (ret) return ret;
var link = _this.zones[tz];
if (typeof link === "string") {
return getRegionForTimezone(link);
}
// Backward-compat file hasn't loaded yet, try looking in there
if (!_this.loadedZones.backward) {
// This is for obvious legacy zones (e.g., Iceland) that don't even have a prefix like "America/" that look like normal zones
_this.loadZoneFile("backward");
return getRegionForTimezone(tz);
}
invalidTZError(tz);
}
function parseTimeString(str) {
var pat = /(\d+)(?::0*(\d*))?(?::0*(\d*))?([wsugz])?$/;
var hms = str.match(pat);
hms[1] = parseInt(hms[1], 10);
hms[2] = hms[2] ? parseInt(hms[2], 10) : 0;
hms[3] = hms[3] ? parseInt(hms[3], 10) : 0;
return hms;
}
function processZone(z) {
if (!z[3]) {
return;
}
var yea = parseInt(z[3], 10);
var mon = 11;
var dat = 31;
if (z[4]) {
mon = SHORT_MONTHS[z[4].substr(0, 3)];
dat = parseInt(z[5], 10) || 1;
}
var string = z[6] ? z[6] : "00:00:00",
t = parseTimeString(string);
return [yea, mon, dat, t[1], t[2], t[3]];
}
function getZone(dt, tz) {
var utcMillis = typeof dt === "number" ? dt : new Date(dt).getTime();
var t = tz;
var zoneList = _this.zones[t];
// Follow links to get to an actual zone
while (typeof zoneList === "string") {
t = zoneList;
zoneList = _this.zones[t];
}
if (!zoneList) {
// Backward-compat file hasn't loaded yet, try looking in there
if (!_this.loadedZones.backward) {
//This is for backward entries like "America/Fort_Wayne" that
// getRegionForTimezone *thinks* it has a region file and zone
// for (e.g., America => 'northamerica'), but in reality it's a
// legacy zone we need the backward file for.
_this.loadZoneFile("backward");
return getZone(dt, tz);
}
invalidTZError(t);
}
if (zoneList.length === 0) {
throw new Error('No Zone found for "' + tz + '" on ' + dt);
}
//Do backwards lookup since most use cases deal with newer dates.
for (var i = zoneList.length - 1; i >= 0; i--) {
var z = zoneList[i];
if (z[3] && utcMillis > z[3]) break;
}
return zoneList[i + 1];
}
function getBasicOffset(time) {
var off = parseTimeString(time),
adj = time.indexOf("-") === 0 ? -1 : 1;
off = adj * (((off[1] * 60 + off[2]) * 60 + off[3]) * 1000);
return off / 60 / 1000;
}
//if isUTC is true, date is given in UTC, otherwise it's given
// in local time (ie. date.getUTC*() returns local time components)
function getRule(dt, zone, isUTC) {
var date = typeof dt === "number" ? new Date(dt) : dt;
var ruleset = zone[1];
var basicOffset = zone[0];
//Convert a date to UTC. Depending on the 'type' parameter, the date
// parameter may be:
//
// - `u`, `g`, `z`: already UTC (no adjustment).
//
// - `s`: standard time (adjust for time zone offset but not for DST)
//
// - `w`: wall clock time (adjust for both time zone and DST offset).
//
// DST adjustment is done using the rule given as third argument.
var convertDateToUTC = function (date, type, rule) {
var offset = 0;
if (type === "u" || type === "g" || type === "z") {
// UTC
offset = 0;
} else if (type === "s") {
// Standard Time
offset = basicOffset;
} else if (type === "w" || !type) {
// Wall Clock Time
offset = getAdjustedOffset(basicOffset, rule);
} else {
throw "unknown type " + type;
}
offset *= 60 * 1000; // to millis
return new Date(date.getTime() + offset);
};
//Step 1: Find applicable rules for this year.
//
//Step 2: Sort the rules by effective date.
//
//Step 3: Check requested date to see if a rule has yet taken effect this year. If not,
//
//Step 4: Get the rules for the previous year. If there isn't an applicable rule for last year, then
// there probably is no current time offset since they seem to explicitly turn off the offset
// when someone stops observing DST.
//
// FIXME if this is not the case and we'll walk all the way back (ugh).
//
//Step 5: Sort the rules by effective date.
//Step 6: Apply the most recent rule before the current time.
var convertRuleToExactDateAndTime = function (yearAndRule, prevRule) {
var year = yearAndRule[0],
rule = yearAndRule[1];
// Assume that the rule applies to the year of the given date.
var hms = rule[5];
var effectiveDate;
if (!EXACT_DATE_TIME[year]) EXACT_DATE_TIME[year] = {};
// Result for given parameters is already stored
if (EXACT_DATE_TIME[year][rule])
effectiveDate = EXACT_DATE_TIME[year][rule];
else {
//If we have a specific date, use that!
if (!isNaN(rule[4])) {
effectiveDate = new Date(
Date.UTC(
year,
SHORT_MONTHS[rule[3]],
rule[4],
hms[1],
hms[2],
hms[3],
0
)
);
}
//Let's hunt for the date.
else {
var targetDay, operator;
//Example: `lastThu`
if (rule[4].substr(0, 4) === "last") {
// Start at the last day of the month and work backward.
effectiveDate = new Date(
Date.UTC(
year,
SHORT_MONTHS[rule[3]] + 1,
1,
hms[1] - 24,
hms[2],
hms[3],
0
)
);
targetDay = SHORT_DAYS[rule[4].substr(4, 3)];
operator = "<=";
}
//Example: `Sun>=15`
else {
//Start at the specified date.
effectiveDate = new Date(
Date.UTC(
year,
SHORT_MONTHS[rule[3]],
rule[4].substr(5),
hms[1],
hms[2],
hms[3],
0
)
);
targetDay = SHORT_DAYS[rule[4].substr(0, 3)];
operator = rule[4].substr(3, 2);
}
var ourDay = effectiveDate.getUTCDay();
//Go forwards.
if (operator === ">=") {
effectiveDate.setUTCDate(
effectiveDate.getUTCDate() +
(targetDay - ourDay + (targetDay < ourDay ? 7 : 0))
);
}
//Go backwards. Looking for the last of a certain day, or operator is "<=" (less likely).
else {
effectiveDate.setUTCDate(
effectiveDate.getUTCDate() +
(targetDay - ourDay - (targetDay > ourDay ? 7 : 0))
);
}
}
EXACT_DATE_TIME[year][rule] = effectiveDate;
}
//If previous rule is given, correct for the fact that the starting time of the current
// rule may be specified in local time.
if (prevRule) {
effectiveDate = convertDateToUTC(effectiveDate, hms[4], prevRule);
}
return effectiveDate;
};
var findApplicableRules = function (year, ruleset) {
var applicableRules = [];
for (var i = 0; ruleset && i < ruleset.length; i++) {
//Exclude future rules.
if (
ruleset[i][0] <= year &&
// Date is in a set range.
(ruleset[i][1] >= year ||
// Date is in an "only" year.
(ruleset[i][0] === year && ruleset[i][1] === "only") ||
//We're in a range from the start year to infinity.
ruleset[i][1] === "max")
) {
//It's completely okay to have any number of matches here.
// Normally we should only see two, but that doesn't preclude other numbers of matches.
// These matches are applicable to this year.
applicableRules.push([year, ruleset[i]]);
}
}
return applicableRules;
};
var compareDates = function (a, b, prev) {
var year, rule;
if (a.constructor !== Date) {
year = a[0];
rule = a[1];
a =
!prev && EXACT_DATE_TIME[year] && EXACT_DATE_TIME[year][rule]
? EXACT_DATE_TIME[year][rule]
: convertRuleToExactDateAndTime(a, prev);
} else if (prev) {
a = convertDateToUTC(a, isUTC ? "u" : "w", prev);
}
if (b.constructor !== Date) {
year = b[0];
rule = b[1];
b =
!prev && EXACT_DATE_TIME[year] && EXACT_DATE_TIME[year][rule]
? EXACT_DATE_TIME[year][rule]
: convertRuleToExactDateAndTime(b, prev);
} else if (prev) {
b = convertDateToUTC(b, isUTC ? "u" : "w", prev);
}
a = Number(a);
b = Number(b);
return a - b;
};
var year = date.getUTCFullYear();
var applicableRules;
applicableRules = findApplicableRules(year, _this.rules[ruleset]);
applicableRules.push(date);
//While sorting, the time zone in which the rule starting time is specified
// is ignored. This is ok as long as the timespan between two DST changes is
// larger than the DST offset, which is probably always true.
// As the given date may indeed be close to a DST change, it may get sorted
// to a wrong position (off by one), which is corrected below.
applicableRules.sort(compareDates);
//If there are not enough past DST rules...
if (applicableRules.indexOf(date) < 2) {
applicableRules = applicableRules.concat(
findApplicableRules(year - 1, _this.rules[ruleset])
);
applicableRules.sort(compareDates);
}
var pinpoint = applicableRules.indexOf(date);
if (
pinpoint > 1 &&
compareDates(
date,
applicableRules[pinpoint - 1],
applicableRules[pinpoint - 2][1]
) < 0
) {
//The previous rule does not really apply, take the one before that.
return applicableRules[pinpoint - 2][1];
} else if (
pinpoint > 0 &&
pinpoint < applicableRules.length - 1 &&
compareDates(
date,
applicableRules[pinpoint + 1],
applicableRules[pinpoint - 1][1]
) > 0
) {
//The next rule does already apply, take that one.
return applicableRules[pinpoint + 1][1];
} else if (pinpoint === 0) {
//No applicable rule found in this and in previous year.
return null;
}
return applicableRules[pinpoint - 1][1];
}
function getAdjustedOffset(off, rule) {
return -Math.ceil(rule[6] - off);
}
function getAbbreviation(zone, rule) {
var res;
var base = zone[2];
if (base.indexOf("%s") > -1) {
var repl;
if (rule) {
repl = rule[7] === "-" ? "" : rule[7];
}
//FIXME: Right now just falling back to Standard --
// apparently ought to use the last valid rule,
// although in practice that always ought to be Standard
else {
repl = "S";
}
res = base.replace("%s", repl);
} else if (base.indexOf("/") > -1) {
//Chose one of two alternative strings.
res = base.split("/", 2)[rule[6] ? 1 : 0];
} else {
res = base;
}
return res;
}
this.zoneFileBasePath;
this.zoneFiles = [
"africa",
"antarctica",
"asia",
"australasia",
"backward",
"etcetera",
"europe",
"northamerica",
"pacificnew",
"southamerica",
];
this.loadingSchemes = {
PRELOAD_ALL: "preloadAll",
LAZY_LOAD: "lazyLoad",
MANUAL_LOAD: "manualLoad",
};
this.loadingScheme = this.loadingSchemes.LAZY_LOAD;
this.loadedZones = {};
this.zones = {};
this.rules = {};
this.init = function (o) {
var opts = { async: true },
def = (this.defaultZoneFile =
this.loadingScheme === this.loadingSchemes.PRELOAD_ALL
? this.zoneFiles
: "northamerica"),
done = 0,
callbackFn;
//Override default with any passed-in opts
for (var p in o) {
opts[p] = o[p];
}
if (typeof def === "string") {
return this.loadZoneFile(def, opts);
}
//Wraps callback function in another one that makes
// sure all files have been loaded.
callbackFn = opts.callback;
opts.callback = function () {
done++;
done === def.length && typeof callbackFn === "function" && callbackFn();
};
for (var i = 0; i < def.length; i++) {
this.loadZoneFile(def[i], opts);
}
};
//Get the zone files via XHR -- if the sync flag
// is set to true, it's being called by the lazy-loading
// mechanism, so the result needs to be returned inline.
this.loadZoneFile = function (fileName, opts) {
if (typeof this.zoneFileBasePath === "undefined") {
throw new Error(
"Please define a base path to your zone file directory -- timezoneJS.timezone.zoneFileBasePath."
);
}
//Ignore already loaded zones.
if (this.loadedZones[fileName]) {
return;
}
this.loadedZones[fileName] = true;
return builtInLoadZoneFile(fileName, opts);
};
this.loadZoneJSONData = function (url, sync) {
var processData = function (data) {
data = eval("(" + data + ")");
for (var z in data.zones) {
_this.zones[z] = data.zones[z];
}
for (var r in data.rules) {
_this.rules[r] = data.rules[r];
}
};
return sync
? processData(_this.transport({ url: url, async: false }))
: _this.transport({ url: url, success: processData });
};
this.loadZoneDataFromObject = function (data) {
if (!data) {
return;
}
for (var z in data.zones) {
_this.zones[z] = data.zones[z];
}
for (var r in data.rules) {
_this.rules[r] = data.rules[r];
}
};
this.getAllZones = function () {
var arr = [];
for (var z in this.zones) {
arr.push(z);
}
return arr.sort();
};
this.parseZones = function (str) {
var lines = str.split("\n"),
arr = [],
chunk = "",
l,
zone = null,
rule = null;
for (var i = 0; i < lines.length; i++) {
l = lines[i];
if (l.match(/^\s/)) {
l = "Zone " + zone + l;
}
l = l.split("#")[0];
if (l.length > 3) {
arr = l.split(/\s+/);
chunk = arr.shift();
//Ignore Leap.
switch (chunk) {
case "Zone":
zone = arr.shift();
if (!_this.zones[zone]) {
_this.zones[zone] = [];
}
if (arr.length < 3) break;
//Process zone right here and replace 3rd element with the processed array.
arr.splice(3, arr.length, processZone(arr));
if (arr[3]) arr[3] = Date.UTC.apply(null, arr[3]);
arr[0] = -getBasicOffset(arr[0]);
_this.zones[zone].push(arr);
break;
case "Rule":
rule = arr.shift();
if (!_this.rules[rule]) {
_this.rules[rule] = [];
}
//Parse int FROM year and TO year
arr[0] = parseInt(arr[0], 10);
arr[1] = parseInt(arr[1], 10) || arr[1];
//Parse time string AT
arr[5] = parseTimeString(arr[5]);
//Parse offset SAVE
arr[6] = getBasicOffset(arr[6]);
_this.rules[rule].push(arr);
break;
case "Link":
//No zones for these should already exist.
if (_this.zones[arr[1]]) {
throw new Error(
"Error with Link " +
arr[1] +
". Cannot create link of a preexisted zone."
);
}
//Create the link.
_this.zones[arr[1]] = arr[0];
break;
}
}
}
return true;
};
//Expose transport mechanism and allow overwrite.
this.transport = _transport;
this.getTzInfo = function (dt, tz, isUTC) {
//Lazy-load any zones not yet loaded.
if (this.loadingScheme === this.loadingSchemes.LAZY_LOAD) {
//Get the correct region for the zone.
var zoneFile = getRegionForTimezone(tz);
if (!zoneFile) {
throw new Error("Not a valid timezone ID.");
}
if (!this.loadedZones[zoneFile]) {
//Get the file and parse it -- use synchronous XHR.
this.loadZoneFile(zoneFile);
}
}
var z = getZone(dt, tz);
var off = z[0];
//See if the offset needs adjustment.
var rule = getRule(dt, z, isUTC);
if (rule) {
off = getAdjustedOffset(off, rule);
}
var abbr = getAbbreviation(z, rule);
return { tzOffset: off, tzAbbr: abbr };
};
})();
}.call(this));