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Add the timeago javascript for fuzzy timestamps.

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tlongren committed Sep 22, 2011
1 parent 086b0e3 commit 86975e24e5e9142832944d0e19a7c2a44bd3dc5d
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/*
* timeago: a jQuery plugin, version: 0.9.3 (2011-01-21)
* @requires jQuery v1.2.3 or later
*
* Timeago is a jQuery plugin that makes it easy to support automatically
* updating fuzzy timestamps (e.g. "4 minutes ago" or "about 1 day ago").
*
* For usage and examples, visit:
* http://timeago.yarp.com/
*
* Licensed under the MIT:
* http://www.opensource.org/licenses/mit-license.php
*
* Copyright (c) 2008-2011, Ryan McGeary (ryanonjavascript -[at]- mcgeary [*dot*] org)
*/
(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());
}
// fix for IE6 suckage
document.createElement("abbr");
document.createElement("time");
}(jQuery));

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