TimelineJS/source/js/Core/VMM.Date.js

/* Utilities and Useful Functions
================================================== */
if(typeof VMM != 'undefined' && typeof VMM.Date == 'undefined') {
	
	VMM.Date = ({
		
		init: function() {
			return this;
		},
		
		dateformats: {
			year: "yyyy",
			month_short: "mmm",
			month: "mmmm yyyy",
			full_short: "mmm d",
			full: "mmmm d',' yyyy",
			time_no_seconds_short: "h:MM TT",
			time_no_seconds_small_date: "h:MM TT'<br/><small>'mmmm d',' yyyy'</small>'",
			full_long: "mmm d',' yyyy 'at' hh:MM TT",
			full_long_small_date: "hh:MM TT'<br/><small>mmm d',' yyyy'</small>'",
		},
			
		month: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"],
		month_abbr: ["Jan.", "Feb.", "March", "April", "May", "June", "July", "Aug.", "Sept.", "Oct.", "Nov.", "Dec."],
		day: ["Sunday","Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"],
		day_abbr: ["Sun.","Mon.", "Tues.", "Wed.", "Thurs.", "Fri.", "Sat."],
		hour: [1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,4,5,6,7,8,9,10,11,12],
		hour_suffix: ["am"],
			
		//B.C.
		bc_format: {
			year: "yyyy",
			month_short: "mmm",
			month: "mmmm yyyy",
			full_short: "mmm d",
			full: "mmmm d',' yyyy",
			time_no_seconds_short: "h:MM TT",
			time_no_seconds_small_date: "dddd', 'h:MM TT'<br/><small>'mmmm d',' yyyy'</small>'",
			full_long: "dddd',' mmm d',' yyyy 'at' hh:MM TT",
			full_long_small_date: "hh:MM TT'<br/><small>'dddd',' mmm d',' yyyy'</small>'",
		},
			
		setLanguage: function(lang) {
			trace("SET DATE LANGUAGE");
			VMM.Date.dateformats		=	lang.dateformats;	
			VMM.Date.month				=	lang.date.month;
			VMM.Date.month_abbr			=	lang.date.month_abbr;
			VMM.Date.day				=	lang.date.day;
			VMM.Date.day_abbr			=	lang.date.day_abbr;
			dateFormat.i18n.dayNames	=	lang.date.day_abbr.concat(lang.date.day);
			dateFormat.i18n.monthNames	=	lang.date.month_abbr.concat(lang.date.month);
		},
			
		parse: function(d) {
			if (type.of(d) == "date") {
				return d;
			} else {
				var _date = new Date(0, 0, 1, 0, 0, 0, 0);
				//var _date = new Date("January 1, 0000 00:00:00")
				var _d_array, _t_array;
				var _time_parse, _times;
				
				if ( d.match(/,/gi) ) {
					_d_array = d.split(",");
					for(var i = 0; i < _d_array.length; i++) {
						_d_array[i] = parseInt(_d_array[i]);
					}
					if (	_d_array[0]			) {	_date.setFullYear(		_d_array[0]);			}
					if (	_d_array[1]	> 1		) {	_date.setMonth(			_d_array[1] - 1);		}
					if (	_d_array[2]	> 1		) {	_date.setDate(			_d_array[2]);			}
					if (	_d_array[3]	> 1		) {	_date.setHours(			_d_array[3]);			}
					if (	_d_array[4]	> 1		) {	_date.setMinutes(		_d_array[4]);			}
					if (	_d_array[5]	> 1		) {	_date.setSeconds(		_d_array[5]);			}
					if (	_d_array[6]	> 1		) {	_date.setMilliseconds(	_d_array[6]);			}
				} else if (d.match("/")) {
					if (d.match(" ")) {
						_time_parse = d.split(" ");
						if (d.match(":")) {
							_t_array = _time_parse[1].split(":");
							if (	_t_array[0]	>= 1	) {		_date.setHours(			_t_array[0]);	}
							if (	_t_array[1]	>= 1	) {		_date.setMinutes(		_t_array[1]);	}
							if (	_t_array[2]	>= 1	) {		_date.setSeconds(		_t_array[2]);	}
							if (	_t_array[3]	>= 1	) {		_date.setMilliseconds(	_t_array[3]);	}
						}
						_d_array = _time_parse[0].split("/");
					} else {
						_d_array = d.split("/");
					}
					if (	_d_array[2]			) {	_date.setFullYear(		_d_array[2]);			}
					if (	_d_array[0]	> 1		) {	_date.setMonth(			_d_array[0] - 1);		}
					if (	_d_array[1]	> 1		) {	_date.setDate(			_d_array[1]);			}
				} else if (d.length <= 5) {
					_date.setFullYear(parseInt(d));
					_date.setMonth(0);
					_date.setDate(1);
					_date.setHours(0);
					_date.setMinutes(0);
					_date.setSeconds(0);
					_date.setMilliseconds(0);
				} else if (d.match("T")) {
					if (navigator.userAgent.match(/MSIE\s(?!9.0)/)) {
					    // IE 8 < Won't accept dates with a "-" in them.
						_time_parse = d.split("T");
						if (d.match(":")) {
							_t_array = _time_parse[1].split(":");
							if (	_t_array[0]	>= 1	) {		_date.setHours(			_t_array[0]);	}
							if (	_t_array[1]	>= 1	) {		_date.setMinutes(		_t_array[1]);	}
							if (	_t_array[2]	>= 1	) {		_date.setSeconds(		_t_array[2]);	}
							if (	_t_array[3]	>= 1	) {		_date.setMilliseconds(	_t_array[3]);	}
						}
						_d_array = _time_parse[0].split("-");
						if (	_d_array[0]			) {	_date.setFullYear(		_d_array[0]);			}
						if (	_d_array[1]	> 1		) {	_date.setMonth(			_d_array[1] - 1);		}
						if (	_d_array[2]	> 1		) {	_date.setDate(			_d_array[2]);			}
						
					} else {
						_date = new Date(Date.parse(d));
					}
				} else {
					_date = new Date(
						parseInt(d.slice(0,4)), 
						parseInt(d.slice(4,6)) - 1, 
						parseInt(d.slice(6,8)), 
						parseInt(d.slice(8,10)), 
						parseInt(d.slice(10,12))
					);
				}
				return _date;
			}
		},
			
		prettyDate: function(d, is_abbr, d2) {
			var _date;
			var _date2;
			var format;
			var bc_check;
			var is_pair = false;
				
			if (d2 != null) {
				is_pair = true;
			}
				
			if (type.of(d) == "date") {
				if (d.getMonth() === 0 && d.getDate() == 1 && d.getHours() === 0 && d.getMinutes() === 0 ) {
					// YEAR ONLY
					format = VMM.Date.dateformats.year;
				} else if (d.getDate() <= 1 && d.getHours() === 0 && d.getMinutes() === 0) {
					// YEAR MONTH
					if (is_abbr) {
						format = VMM.Date.dateformats.month_short;
					} else {
						format = VMM.Date.dateformats.month;
					}
				} else if (d.getHours() === 0 && d.getMinutes() === 0) {
					// YEAR MONTH DAY
					if (is_abbr) {
						format = VMM.Date.dateformats.full_short;
					} else {
						format = VMM.Date.dateformats.full;
					}
				} else  if (d.getMinutes() === 0) {
					// YEAR MONTH DAY HOUR
					if (is_abbr) {
						format = VMM.Date.dateformats.time_no_seconds_short;
					} else {
						format = VMM.Date.dateformats.time_no_seconds_small_date;
					}
				} else {
					// YEAR MONTH DAY HOUR MINUTE
					if (is_abbr){
						format = VMM.Date.dateformats.time_no_seconds_short; 
					} else {
						format = VMM.Date.dateformats.full_long; 
					}
				}
					
				_date = dateFormat(d, format);
				bc_check = _date.split(" ");
					
				// BC TIME SUPPORT
				for(var i = 0; i < bc_check.length; i++) {
					if ( parseInt(bc_check[i]) < 0 ) {
						trace("YEAR IS BC");
						var bc_original = 	bc_check[i];
						var bc_number = 	Math.abs( parseInt(bc_check[i]) );
						var bc_string = 	bc_number.toString() + " B.C.";
						_date = _date.replace(bc_original, bc_string);
					}
				}
					
					
				if (is_pair) {
					_date2 = dateFormat(d2, format);
					bc_check = _date2.split(" ");
					// BC TIME SUPPORT
					for(var i = 0; i < bc_check.length; i++) {
						if ( parseInt(bc_check[i]) < 0 ) {
							trace("YEAR IS BC");
							var bc_original = 	bc_check[i];
							var bc_number = 	Math.abs( parseInt(bc_check[i]) );
							var bc_string = 	bc_number.toString() + " B.C.";
							_date2 = _date2.replace(bc_original, bc_string);
						}
					}
						
				}
			} else {
				trace("NOT A VALID DATE?");
				trace(d);
			}
				
			if (is_pair) {
				return _date + " &mdash; " + _date2;
			} else {
				return _date;
			}
		}
		
	}).init();
	
	/*
	 * Date Format 1.2.3
	 * (c) 2007-2009 Steven Levithan <stevenlevithan.com>
	 * MIT license
	 *
	 * Includes enhancements by Scott Trenda <scott.trenda.net>
	 * and Kris Kowal <cixar.com/~kris.kowal/>
	 *
	 * Accepts a date, a mask, or a date and a mask.
	 * Returns a formatted version of the given date.
	 * The date defaults to the current date/time.
	 * The mask defaults to dateFormat.masks.default.
	 */

	var dateFormat = function () {
		var	token = /d{1,4}|m{1,4}|yy(?:yy)?|([HhMsTt])\1?|[LloSZ]|"[^"]*"|'[^']*'/g,
			timezone = /\b(?:[PMCEA][SDP]T|(?:Pacific|Mountain|Central|Eastern|Atlantic) (?:Standard|Daylight|Prevailing) Time|(?:GMT|UTC)(?:[-+]\d{4})?)\b/g,
			timezoneClip = /[^-+\dA-Z]/g,
			pad = function (val, len) {
				val = String(val);
				len = len || 2;
				while (val.length < len) val = "0" + val;
				return val;
			};

		// Regexes and supporting functions are cached through closure
		return function (date, mask, utc) {
			var dF = dateFormat;

			// You can't provide utc if you skip other args (use the "UTC:" mask prefix)
			if (arguments.length == 1 && Object.prototype.toString.call(date) == "[object String]" && !/\d/.test(date)) {
				mask = date;
				date = undefined;
			}

			// Passing date through Date applies Date.parse, if necessary
			// Caused problems in IE
			// date = date ? new Date(date) : new Date;
			if (isNaN(date)) {
				trace("invalid date " + date);
				//return "";
			} 

			mask = String(dF.masks[mask] || mask || dF.masks["default"]);

			// Allow setting the utc argument via the mask
			if (mask.slice(0, 4) == "UTC:") {
				mask = mask.slice(4);
				utc = true;
			}

			var	_ = utc ? "getUTC" : "get",
				d = date[_ + "Date"](),
				D = date[_ + "Day"](),
				m = date[_ + "Month"](),
				y = date[_ + "FullYear"](),
				H = date[_ + "Hours"](),
				M = date[_ + "Minutes"](),
				s = date[_ + "Seconds"](),
				L = date[_ + "Milliseconds"](),
				o = utc ? 0 : date.getTimezoneOffset(),
				flags = {
					d:    d,
					dd:   pad(d),
					ddd:  dF.i18n.dayNames[D],
					dddd: dF.i18n.dayNames[D + 7],
					m:    m + 1,
					mm:   pad(m + 1),
					mmm:  dF.i18n.monthNames[m],
					mmmm: dF.i18n.monthNames[m + 12],
					yy:   String(y).slice(2),
					yyyy: y,
					h:    H % 12 || 12,
					hh:   pad(H % 12 || 12),
					H:    H,
					HH:   pad(H),
					M:    M,
					MM:   pad(M),
					s:    s,
					ss:   pad(s),
					l:    pad(L, 3),
					L:    pad(L > 99 ? Math.round(L / 10) : L),
					t:    H < 12 ? "a"  : "p",
					tt:   H < 12 ? "am" : "pm",
					T:    H < 12 ? "A"  : "P",
					TT:   H < 12 ? "AM" : "PM",
					Z:    utc ? "UTC" : (String(date).match(timezone) || [""]).pop().replace(timezoneClip, ""),
					o:    (o > 0 ? "-" : "+") + pad(Math.floor(Math.abs(o) / 60) * 100 + Math.abs(o) % 60, 4),
					S:    ["th", "st", "nd", "rd"][d % 10 > 3 ? 0 : (d % 100 - d % 10 != 10) * d % 10]
				};

			return mask.replace(token, function ($0) {
				return $0 in flags ? flags[$0] : $0.slice(1, $0.length - 1);
			});
		};
	}();

	// Some common format strings
	dateFormat.masks = {
		"default":      "ddd mmm dd yyyy HH:MM:ss",
		shortDate:      "m/d/yy",
		mediumDate:     "mmm d, yyyy",
		longDate:       "mmmm d, yyyy",
		fullDate:       "dddd, mmmm d, yyyy",
		shortTime:      "h:MM TT",
		mediumTime:     "h:MM:ss TT",
		longTime:       "h:MM:ss TT Z",
		isoDate:        "yyyy-mm-dd",
		isoTime:        "HH:MM:ss",
		isoDateTime:    "yyyy-mm-dd'T'HH:MM:ss",
		isoUtcDateTime: "UTC:yyyy-mm-dd'T'HH:MM:ss'Z'"
	};

	// Internationalization strings
	dateFormat.i18n = {
		dayNames: [
			"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat",
			"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"
		],
		monthNames: [
			"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
			"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"
		]
	};

	// For convenience...
	Date.prototype.format = function (mask, utc) {
		return dateFormat(this, mask, utc);
	};
	
}