egroupware/api/js/etemplate/lib/date.js
2016-03-19 13:48:07 +00:00

262 lines
10 KiB
JavaScript

function date (format, timestamp) {
// http://kevin.vanzonneveld.net
// + original by: Carlos R. L. Rodrigues (http://www.jsfromhell.com)
// + parts by: Peter-Paul Koch (http://www.quirksmode.org/js/beat.html)
// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + improved by: MeEtc (http://yass.meetcweb.com)
// + improved by: Brad Touesnard
// + improved by: Tim Wiel
// + improved by: Bryan Elliott
//
// + improved by: Brett Zamir (http://brett-zamir.me)
// + improved by: David Randall
// + input by: Brett Zamir (http://brett-zamir.me)
// + bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + improved by: Brett Zamir (http://brett-zamir.me)
// + improved by: Brett Zamir (http://brett-zamir.me)
// + improved by: Theriault
// + derived from: gettimeofday
// + input by: majak
// + bugfixed by: majak
// + bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + input by: Alex
// + bugfixed by: Brett Zamir (http://brett-zamir.me)
// + improved by: Theriault
// + improved by: Brett Zamir (http://brett-zamir.me)
// + improved by: Theriault
// + improved by: Thomas Beaucourt (http://www.webapp.fr)
// + improved by: JT
// + improved by: Theriault
// + improved by: Rafał Kukawski (http://blog.kukawski.pl)
// + input by: Martin
// + input by: Alex Wilson
// % note 1: Uses global: php_js to store the default timezone
// % note 2: Although the function potentially allows timezone info (see notes), it currently does not set
// % note 2: per a timezone specified by date_default_timezone_set(). Implementers might use
// % note 2: this.php_js.currentTimezoneOffset and this.php_js.currentTimezoneDST set by that function
// % note 2: in order to adjust the dates in this function (or our other date functions!) accordingly
// * example 1: date('H:m:s \\m \\i\\s \\m\\o\\n\\t\\h', 1062402400);
// * returns 1: '09:09:40 m is month'
// * example 2: date('F j, Y, g:i a', 1062462400);
// * returns 2: 'September 2, 2003, 2:26 am'
// * example 3: date('Y W o', 1062462400);
// * returns 3: '2003 36 2003'
// * example 4: x = date('Y m d', (new Date()).getTime()/1000);
// * example 4: (x+'').length == 10 // 2009 01 09
// * returns 4: true
// * example 5: date('W', 1104534000);
// * returns 5: '53'
// * example 6: date('B t', 1104534000);
// * returns 6: '999 31'
// * example 7: date('W U', 1293750000.82); // 2010-12-31
// * returns 7: '52 1293750000'
// * example 8: date('W', 1293836400); // 2011-01-01
// * returns 8: '52'
// * example 9: date('W Y-m-d', 1293974054); // 2011-01-02
// * returns 9: '52 2011-01-02'
var that = this,
jsdate, f, formatChr = /\\?([a-z])/gi,
formatChrCb,
// Keep this here (works, but for code commented-out
// below for file size reasons)
//, tal= [],
_pad = function (n, c) {
if ((n = n + '').length < c) {
return new Array((++c) - n.length).join('0') + n;
}
return n;
},
txt_words = ["Sun", "Mon", "Tues", "Wednes", "Thurs", "Fri", "Satur", "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
formatChrCb = function (t, s) {
return f[t] ? f[t]() : s;
};
f = {
// Day
d: function () { // Day of month w/leading 0; 01..31
return _pad(f.j(), 2);
},
D: function () { // Shorthand day name; Mon...Sun
return f.l().slice(0, 3);
},
j: function () { // Day of month; 1..31
return jsdate.getDate();
},
l: function () { // Full day name; Monday...Sunday
return txt_words[f.w()] + 'day';
},
N: function () { // ISO-8601 day of week; 1[Mon]..7[Sun]
return f.w() || 7;
},
S: function () { // Ordinal suffix for day of month; st, nd, rd, th
var j = f.j();
return j > 4 || j < 21 ? 'th' : {1: 'st', 2: 'nd', 3: 'rd'}[j % 10] || 'th';
},
w: function () { // Day of week; 0[Sun]..6[Sat]
return jsdate.getDay();
},
z: function () { // Day of year; 0..365
var a = new Date(f.Y(), f.n() - 1, f.j()),
b = new Date(f.Y(), 0, 1);
return Math.round((a - b) / 864e5) + 1;
},
// Week
W: function () { // ISO-8601 week number
var a = new Date(f.Y(), f.n() - 1, f.j() - f.N() + 3),
b = new Date(a.getFullYear(), 0, 4);
return _pad(1 + Math.round((a - b) / 864e5 / 7), 2);
},
// Month
F: function () { // Full month name; January...December
return txt_words[6 + f.n()];
},
m: function () { // Month w/leading 0; 01...12
return _pad(f.n(), 2);
},
M: function () { // Shorthand month name; Jan...Dec
return f.F().slice(0, 3);
},
n: function () { // Month; 1...12
return jsdate.getMonth() + 1;
},
t: function () { // Days in month; 28...31
return (new Date(f.Y(), f.n(), 0)).getDate();
},
// Year
L: function () { // Is leap year?; 0 or 1
return new Date(f.Y(), 1, 29).getMonth() === 1 | 0;
},
o: function () { // ISO-8601 year
var n = f.n(),
W = f.W(),
Y = f.Y();
return Y + (n === 12 && W < 9 ? -1 : n === 1 && W > 9);
},
Y: function () { // Full year; e.g. 1980...2010
return jsdate.getFullYear();
},
y: function () { // Last two digits of year; 00...99
return (f.Y() + "").slice(-2);
},
// Time
a: function () { // am or pm
return jsdate.getHours() > 11 ? "pm" : "am";
},
A: function () { // AM or PM
return f.a().toUpperCase();
},
B: function () { // Swatch Internet time; 000..999
var H = jsdate.getUTCHours() * 36e2,
// Hours
i = jsdate.getUTCMinutes() * 60,
// Minutes
s = jsdate.getUTCSeconds(); // Seconds
return _pad(Math.floor((H + i + s + 36e2) / 86.4) % 1e3, 3);
},
g: function () { // 12-Hours; 1..12
return f.G() % 12 || 12;
},
G: function () { // 24-Hours; 0..23
return jsdate.getHours();
},
h: function () { // 12-Hours w/leading 0; 01..12
return _pad(f.g(), 2);
},
H: function () { // 24-Hours w/leading 0; 00..23
return _pad(f.G(), 2);
},
i: function () { // Minutes w/leading 0; 00..59
return _pad(jsdate.getMinutes(), 2);
},
s: function () { // Seconds w/leading 0; 00..59
return _pad(jsdate.getSeconds(), 2);
},
u: function () { // Microseconds; 000000-999000
return _pad(jsdate.getMilliseconds() * 1000, 6);
},
// Timezone
e: function () { // Timezone identifier; e.g. Atlantic/Azores, ...
// The following works, but requires inclusion of the very large
// timezone_abbreviations_list() function.
/* return this.date_default_timezone_get();
*/
throw 'Not supported (see source code of date() for timezone on how to add support)';
},
I: function () { // DST observed?; 0 or 1
// Compares Jan 1 minus Jan 1 UTC to Jul 1 minus Jul 1 UTC.
// If they are not equal, then DST is observed.
var a = new Date(f.Y(), 0),
// Jan 1
c = Date.UTC(f.Y(), 0),
// Jan 1 UTC
b = new Date(f.Y(), 6),
// Jul 1
d = Date.UTC(f.Y(), 6); // Jul 1 UTC
return 0 + ((a - c) !== (b - d));
},
O: function () { // Difference to GMT in hour format; e.g. +0200
var a = jsdate.getTimezoneOffset();
return (a > 0 ? "-" : "+") + _pad(Math.abs(a / 60 * 100), 4);
},
P: function () { // Difference to GMT w/colon; e.g. +02:00
var O = f.O();
return (O.substr(0, 3) + ":" + O.substr(3, 2));
},
T: function () { // Timezone abbreviation; e.g. EST, MDT, ...
// The following works, but requires inclusion of the very
// large timezone_abbreviations_list() function.
/* var abbr = '', i = 0, os = 0, default = 0;
if (!tal.length) {
tal = that.timezone_abbreviations_list();
}
if (that.php_js && that.php_js.default_timezone) {
default = that.php_js.default_timezone;
for (abbr in tal) {
for (i=0; i < tal[abbr].length; i++) {
if (tal[abbr][i].timezone_id === default) {
return abbr.toUpperCase();
}
}
}
}
for (abbr in tal) {
for (i = 0; i < tal[abbr].length; i++) {
os = -jsdate.getTimezoneOffset() * 60;
if (tal[abbr][i].offset === os) {
return abbr.toUpperCase();
}
}
}
*/
return 'UTC';
},
Z: function () { // Timezone offset in seconds (-43200...50400)
return -jsdate.getTimezoneOffset() * 60;
},
// Full Date/Time
c: function () { // ISO-8601 date.
return 'Y-m-d\\Th:i:sP'.replace(formatChr, formatChrCb);
},
r: function () { // RFC 2822
return 'D, d M Y H:i:s O'.replace(formatChr, formatChrCb);
},
U: function () { // Seconds since UNIX epoch
return jsdate.getTime() / 1000 | 0;
}
};
this.date = function (format, timestamp) {
that = this;
jsdate = ((typeof timestamp === 'undefined') ? new Date() : // Not provided
(timestamp instanceof Date) ? new Date(timestamp) : // JS Date()
new Date(timestamp * 1000) // UNIX timestamp (auto-convert to int)
);
return format.replace(formatChr, formatChrCb);
};
return this.date(format, timestamp);
}