Created
February 13, 2013 19:41
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define(['jquery-loader'], function (jQuery) { | |
(function($) { | |
$.timeago = function(timestamp) { | |
if (timestamp instanceof Date) return inWords(timestamp); | |
else if (typeof timestamp == "string") return inWords($.timeago.parse(timestamp)); | |
else return inWords($.timeago.datetime(timestamp)); | |
}; | |
var $t = $.timeago; | |
$.extend($.timeago, { | |
settings: { | |
refreshMillis: 60000, | |
allowFuture: false, | |
strings: { | |
prefixAgo: null, | |
prefixFromNow: null, | |
suffixAgo: "ago", | |
suffixFromNow: "from now", | |
seconds: "less than a minute", | |
minute: "about a minute", | |
minutes: "%d minutes", | |
hour: "about an hour", | |
hours: "about %d hours", | |
day: "a day", | |
days: "%d days", | |
month: "about a month", | |
months: "%d months", | |
year: "about a year", | |
years: "%d years", | |
numbers: [] | |
} | |
}, | |
inWords: function(distanceMillis) { | |
var $l = this.settings.strings; | |
var prefix = $l.prefixAgo; | |
var suffix = $l.suffixAgo; | |
if (this.settings.allowFuture) { | |
if (distanceMillis < 0) { | |
prefix = $l.prefixFromNow; | |
suffix = $l.suffixFromNow; | |
} | |
distanceMillis = Math.abs(distanceMillis); | |
} | |
var seconds = distanceMillis / 1000; | |
var minutes = seconds / 60; | |
var hours = minutes / 60; | |
var days = hours / 24; | |
var years = days / 365; | |
function substitute(stringOrFunction, number) { | |
var string = $.isFunction(stringOrFunction) ? stringOrFunction(number, distanceMillis) : stringOrFunction; | |
var value = ($l.numbers && $l.numbers[number]) || number; | |
return string.replace(/%d/i, value); | |
} | |
var words = seconds < 45 && substitute($l.seconds, Math.round(seconds)) || | |
seconds < 90 && substitute($l.minute, 1) || | |
minutes < 45 && substitute($l.minutes, Math.round(minutes)) || | |
minutes < 90 && substitute($l.hour, 1) || | |
hours < 24 && substitute($l.hours, Math.round(hours)) || | |
hours < 48 && substitute($l.day, 1) || | |
days < 30 && substitute($l.days, Math.floor(days)) || | |
days < 60 && substitute($l.month, 1) || | |
days < 365 && substitute($l.months, Math.floor(days / 30)) || | |
years < 2 && substitute($l.year, 1) || | |
substitute($l.years, Math.floor(years)); | |
return $.trim([prefix, words, suffix].join(" ")); | |
}, | |
parse: function(iso8601) { | |
var s = $.trim(iso8601); | |
s = s.replace(/\.\d\d\d+/,""); // remove milliseconds | |
s = s.replace(/-/,"/").replace(/-/,"/"); | |
s = s.replace(/T/," ").replace(/Z/," UTC"); | |
s = s.replace(/([\+-]\d\d)\:?(\d\d)/," $1$2"); // -04:00 -> -0400 | |
return new Date(s); | |
}, | |
datetime: function(elem) { | |
// jQuery's `is()` doesn't play well with HTML5 in IE | |
var isTime = $(elem).get(0).tagName.toLowerCase() == "time"; // $(elem).is("time"); | |
var iso8601 = isTime ? $(elem).attr("datetime") : $(elem).attr("title"); | |
return $t.parse(iso8601); | |
} | |
}); | |
$.fn.timeago = function() { | |
var self = this; | |
self.each(refresh); | |
var $s = $t.settings; | |
if ($s.refreshMillis > 0) { | |
setInterval(function() { self.each(refresh); }, $s.refreshMillis); | |
} | |
return self; | |
}; | |
function refresh() { | |
var data = prepareData(this); | |
if (!isNaN(data.datetime)) { | |
$(this).text(inWords(data.datetime)); | |
} | |
return this; | |
} | |
function prepareData(element) { | |
element = $(element); | |
if (!element.data("timeago")) { | |
element.data("timeago", { datetime: $t.datetime(element) }); | |
var text = $.trim(element.text()); | |
if (text.length > 0) element.attr("title", text); | |
} | |
return element.data("timeago"); | |
} | |
function inWords(date) { | |
return $t.inWords(distance(date)); | |
} | |
function distance(date) { | |
return (new Date().getTime() - date.getTime()); | |
} | |
})(jQuery); | |
}); |
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