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/* |
Copyright (c) 2004-2006, The Dojo Foundation |
All Rights Reserved. |
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Licensed under the Academic Free License version 2.1 or above OR the |
modified BSD license. For more information on Dojo licensing, see: |
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http://dojotoolkit.org/community/licensing.shtml |
*/ |
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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); |
}; |
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