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/*
Copyright (c) 2004-2006, The Dojo Foundation
All Rights Reserved.
Licensed under the Academic Free License version 2.1 or above OR the
modified BSD license. For more information on Dojo licensing, see:
http://dojotoolkit.org/community/licensing.shtml
*/
dojo.provide("dojo.date.common");
dojo.date.setDayOfYear = function (dateObject, dayOfYear) {
dateObject.setMonth(0);
dateObject.setDate(dayOfYear);
return dateObject;
};
dojo.date.getDayOfYear = function (dateObject) {
var fullYear = dateObject.getFullYear();
var lastDayOfPrevYear = new Date(fullYear - 1, 11, 31);
return Math.floor((dateObject.getTime() - lastDayOfPrevYear.getTime()) / 86400000);
};
dojo.date.setWeekOfYear = function (dateObject, week, firstDay) {
if (arguments.length == 1) {
firstDay = 0;
}
dojo.unimplemented("dojo.date.setWeekOfYear");
};
dojo.date.getWeekOfYear = function (dateObject, firstDay) {
if (arguments.length == 1) {
firstDay = 0;
}
var firstDayOfYear = new Date(dateObject.getFullYear(), 0, 1);
var day = firstDayOfYear.getDay();
firstDayOfYear.setDate(firstDayOfYear.getDate() - day + firstDay - (day > firstDay ? 7 : 0));
return Math.floor((dateObject.getTime() - firstDayOfYear.getTime()) / 604800000);
};
dojo.date.setIsoWeekOfYear = function (dateObject, week, firstDay) {
if (arguments.length == 1) {
firstDay = 1;
}
dojo.unimplemented("dojo.date.setIsoWeekOfYear");
};
dojo.date.getIsoWeekOfYear = function (dateObject, firstDay) {
if (arguments.length == 1) {
firstDay = 1;
}
dojo.unimplemented("dojo.date.getIsoWeekOfYear");
};
dojo.date.shortTimezones = ["IDLW", "BET", "HST", "MART", "AKST", "PST", "MST", "CST", "EST", "AST", "NFT", "BST", "FST", "AT", "GMT", "CET", "EET", "MSK", "IRT", "GST", "AFT", "AGTT", "IST", "NPT", "ALMT", "MMT", "JT", "AWST", "JST", "ACST", "AEST", "LHST", "VUT", "NFT", "NZT", "CHAST", "PHOT", "LINT"];
dojo.date.timezoneOffsets = [-720, -660, -600, -570, -540, -480, -420, -360, -300, -240, -210, -180, -120, -60, 0, 60, 120, 180, 210, 240, 270, 300, 330, 345, 360, 390, 420, 480, 540, 570, 600, 630, 660, 690, 720, 765, 780, 840];
dojo.date.getDaysInMonth = function (dateObject) {
var month = dateObject.getMonth();
var days = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
if (month == 1 && dojo.date.isLeapYear(dateObject)) {
return 29;
} else {
return days[month];
}
};
dojo.date.isLeapYear = function (dateObject) {
var year = dateObject.getFullYear();
return (year % 400 == 0) ? true : (year % 100 == 0) ? false : (year % 4 == 0) ? true : false;
};
dojo.date.getTimezoneName = function (dateObject) {
var str = dateObject.toString();
var tz = "";
var match;
var pos = str.indexOf("(");
if (pos > -1) {
pos++;
tz = str.substring(pos, str.indexOf(")"));
} else {
var pat = /([A-Z\/]+) \d{4}$/;
if ((match = str.match(pat))) {
tz = match[1];
} else {
str = dateObject.toLocaleString();
pat = / ([A-Z\/]+)$/;
if ((match = str.match(pat))) {
tz = match[1];
}
}
}
return tz == "AM" || tz == "PM" ? "" : tz;
};
dojo.date.getOrdinal = function (dateObject) {
var date = dateObject.getDate();
if (date % 100 != 11 && date % 10 == 1) {
return "st";
} else {
if (date % 100 != 12 && date % 10 == 2) {
return "nd";
} else {
if (date % 100 != 13 && date % 10 == 3) {
return "rd";
} else {
return "th";
}
}
}
};
dojo.date.compareTypes = {DATE:1, TIME:2};
dojo.date.compare = function (dateA, dateB, options) {
var dA = dateA;
var dB = dateB || new Date();
var now = new Date();
with (dojo.date.compareTypes) {
var opt = options || (DATE | TIME);
var d1 = new Date((opt & DATE) ? dA.getFullYear() : now.getFullYear(), (opt & DATE) ? dA.getMonth() : now.getMonth(), (opt & DATE) ? dA.getDate() : now.getDate(), (opt & TIME) ? dA.getHours() : 0, (opt & TIME) ? dA.getMinutes() : 0, (opt & TIME) ? dA.getSeconds() : 0);
var d2 = new Date((opt & DATE) ? dB.getFullYear() : now.getFullYear(), (opt & DATE) ? dB.getMonth() : now.getMonth(), (opt & DATE) ? dB.getDate() : now.getDate(), (opt & TIME) ? dB.getHours() : 0, (opt & TIME) ? dB.getMinutes() : 0, (opt & TIME) ? dB.getSeconds() : 0);
}
if (d1.valueOf() > d2.valueOf()) {
return 1;
}
if (d1.valueOf() < d2.valueOf()) {
return -1;
}
return 0;
};
dojo.date.dateParts = {YEAR:0, MONTH:1, DAY:2, HOUR:3, MINUTE:4, SECOND:5, MILLISECOND:6, QUARTER:7, WEEK:8, WEEKDAY:9};
dojo.date.add = function (dt, interv, incr) {
if (typeof dt == "number") {
dt = new Date(dt);
}
function fixOvershoot() {
if (sum.getDate() < dt.getDate()) {
sum.setDate(0);
}
}
var sum = new Date(dt);
with (dojo.date.dateParts) {
switch (interv) {
case YEAR:
sum.setFullYear(dt.getFullYear() + incr);
fixOvershoot();
break;
case QUARTER:
incr *= 3;
case MONTH:
sum.setMonth(dt.getMonth() + incr);
fixOvershoot();
break;
case WEEK:
incr *= 7;
case DAY:
sum.setDate(dt.getDate() + incr);
break;
case WEEKDAY:
var dat = dt.getDate();
var weeks = 0;
var days = 0;
var strt = 0;
var trgt = 0;
var adj = 0;
var mod = incr % 5;
if (mod == 0) {
days = (incr > 0) ? 5 : -5;
weeks = (incr > 0) ? ((incr - 5) / 5) : ((incr + 5) / 5);
} else {
days = mod;
weeks = parseInt(incr / 5);
}
strt = dt.getDay();
if (strt == 6 && incr > 0) {
adj = 1;
} else {
if (strt == 0 && incr < 0) {
adj = -1;
}
}
trgt = (strt + days);
if (trgt == 0 || trgt == 6) {
adj = (incr > 0) ? 2 : -2;
}
sum.setDate(dat + (7 * weeks) + days + adj);
break;
case HOUR:
sum.setHours(sum.getHours() + incr);
break;
case MINUTE:
sum.setMinutes(sum.getMinutes() + incr);
break;
case SECOND:
sum.setSeconds(sum.getSeconds() + incr);
break;
case MILLISECOND:
sum.setMilliseconds(sum.getMilliseconds() + incr);
break;
default:
break;
}
}
return sum;
};
dojo.date.diff = function (dtA, dtB, interv) {
if (typeof dtA == "number") {
dtA = new Date(dtA);
}
if (typeof dtB == "number") {
dtB = new Date(dtB);
}
var yeaDiff = dtB.getFullYear() - dtA.getFullYear();
var monDiff = (dtB.getMonth() - dtA.getMonth()) + (yeaDiff * 12);
var msDiff = dtB.getTime() - dtA.getTime();
var secDiff = msDiff / 1000;
var minDiff = secDiff / 60;
var houDiff = minDiff / 60;
var dayDiff = houDiff / 24;
var weeDiff = dayDiff / 7;
var delta = 0;
with (dojo.date.dateParts) {
switch (interv) {
case YEAR:
delta = yeaDiff;
break;
case QUARTER:
var mA = dtA.getMonth();
var mB = dtB.getMonth();
var qA = Math.floor(mA / 3) + 1;
var qB = Math.floor(mB / 3) + 1;
qB += (yeaDiff * 4);
delta = qB - qA;
break;
case MONTH:
delta = monDiff;
break;
case WEEK:
delta = parseInt(weeDiff);
break;
case DAY:
delta = dayDiff;
break;
case WEEKDAY:
var days = Math.round(dayDiff);
var weeks = parseInt(days / 7);
var mod = days % 7;
if (mod == 0) {
days = weeks * 5;
} else {
var adj = 0;
var aDay = dtA.getDay();
var bDay = dtB.getDay();
weeks = parseInt(days / 7);
mod = days % 7;
var dtMark = new Date(dtA);
dtMark.setDate(dtMark.getDate() + (weeks * 7));
var dayMark = dtMark.getDay();
if (dayDiff > 0) {
switch (true) {
case aDay == 6:
adj = -1;
break;
case aDay == 0:
adj = 0;
break;
case bDay == 6:
adj = -1;
break;
case bDay == 0:
adj = -2;
break;
case (dayMark + mod) > 5:
adj = -2;
break;
default:
break;
}
} else {
if (dayDiff < 0) {
switch (true) {
case aDay == 6:
adj = 0;
break;
case aDay == 0:
adj = 1;
break;
case bDay == 6:
adj = 2;
break;
case bDay == 0:
adj = 1;
break;
case (dayMark + mod) < 0:
adj = 2;
break;
default:
break;
}
}
}
days += adj;
days -= (weeks * 2);
}
delta = days;
break;
case HOUR:
delta = houDiff;
break;
case MINUTE:
delta = minDiff;
break;
case SECOND:
delta = secDiff;
break;
case MILLISECOND:
delta = msDiff;
break;
default:
break;
}
}
return Math.round(delta);
};