233 lines
7.2 KiB
JavaScript
233 lines
7.2 KiB
JavaScript
/**
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* Timeago is a jQuery plugin that makes it easy to support automatically
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* updating fuzzy timestamps (e.g. "4 minutes ago" or "about 1 day ago").
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*
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* @name timeago
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* @version 1.5.4
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* @requires jQuery v1.2.3+
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* @author Ryan McGeary
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* @license MIT License - http://www.opensource.org/licenses/mit-license.php
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*
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* For usage and examples, visit:
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* http://timeago.yarp.com/
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*
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* Copyright (c) 2008-2017, Ryan McGeary (ryan -[at]- mcgeary [*dot*] org)
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*/
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(function (factory) {
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if (typeof define === 'function' && define.amd) {
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// AMD. Register as an anonymous module.
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define(['jquery'], factory);
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} else if (typeof module === 'object' && typeof module.exports === 'object') {
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factory(require('jquery'));
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} else {
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// Browser globals
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factory(jQuery);
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}
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}(function ($) {
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$.timeago = function(timestamp) {
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if (timestamp instanceof Date) {
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return inWords(timestamp);
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} else if (typeof timestamp === "string") {
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return inWords($.timeago.parse(timestamp));
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} else if (typeof timestamp === "number") {
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return inWords(new Date(timestamp));
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} else {
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return inWords($.timeago.datetime(timestamp));
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}
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};
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var $t = $.timeago;
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$.extend($.timeago, {
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settings: {
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refreshMillis: 60000,
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allowPast: true,
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allowFuture: false,
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localeTitle: false,
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cutoff: 0,
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autoDispose: true,
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strings: {
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prefixAgo: null,
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prefixFromNow: null,
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suffixAgo: "ago",
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suffixFromNow: "from now",
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inPast: 'any moment now',
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seconds: "less than a minute",
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minute: "about a minute",
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minutes: "%d minutes",
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hour: "about an hour",
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hours: "about %d hours",
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day: "a day",
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days: "%d days",
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month: "about a month",
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months: "%d months",
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year: "about a year",
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years: "%d years",
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wordSeparator: " ",
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numbers: []
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}
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},
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inWords: function(distanceMillis) {
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if (!this.settings.allowPast && ! this.settings.allowFuture) {
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throw 'timeago allowPast and allowFuture settings can not both be set to false.';
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}
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var $l = this.settings.strings;
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var prefix = $l.prefixAgo;
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var suffix = $l.suffixAgo;
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if (this.settings.allowFuture) {
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if (distanceMillis < 0) {
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prefix = $l.prefixFromNow;
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suffix = $l.suffixFromNow;
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}
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}
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if (!this.settings.allowPast && distanceMillis >= 0) {
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return this.settings.strings.inPast;
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}
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var seconds = Math.abs(distanceMillis) / 1000;
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var minutes = seconds / 60;
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var hours = minutes / 60;
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var days = hours / 24;
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var years = days / 365;
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function substitute(stringOrFunction, number) {
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var string = $.isFunction(stringOrFunction) ? stringOrFunction(number, distanceMillis) : stringOrFunction;
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var value = ($l.numbers && $l.numbers[number]) || number;
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return string.replace(/%d/i, value);
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}
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var words = seconds < 45 && substitute($l.seconds, Math.round(seconds)) ||
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seconds < 90 && substitute($l.minute, 1) ||
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minutes < 45 && substitute($l.minutes, Math.round(minutes)) ||
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minutes < 90 && substitute($l.hour, 1) ||
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hours < 24 && substitute($l.hours, Math.round(hours)) ||
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hours < 42 && substitute($l.day, 1) ||
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days < 30 && substitute($l.days, Math.round(days)) ||
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days < 45 && substitute($l.month, 1) ||
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days < 365 && substitute($l.months, Math.round(days / 30)) ||
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years < 1.5 && substitute($l.year, 1) ||
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substitute($l.years, Math.round(years));
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var separator = $l.wordSeparator || "";
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if ($l.wordSeparator === undefined) { separator = " "; }
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return $.trim([prefix, words, suffix].join(separator));
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},
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parse: function(iso8601) {
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var s = $.trim(iso8601);
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s = s.replace(/\.\d+/,""); // remove milliseconds
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s = s.replace(/-/,"/").replace(/-/,"/");
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s = s.replace(/T/," ").replace(/Z/," UTC");
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s = s.replace(/([\+\-]\d\d)\:?(\d\d)/," $1$2"); // -04:00 -> -0400
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s = s.replace(/([\+\-]\d\d)$/," $100"); // +09 -> +0900
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return new Date(s);
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},
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datetime: function(elem) {
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var iso8601 = $t.isTime(elem) ? $(elem).attr("datetime") : $(elem).attr("title");
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return $t.parse(iso8601);
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},
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isTime: function(elem) {
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// jQuery's `is()` doesn't play well with HTML5 in IE
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return $(elem).get(0).tagName.toLowerCase() === "time"; // $(elem).is("time");
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}
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});
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// functions that can be called via $(el).timeago('action')
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// init is default when no action is given
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// functions are called with context of a single element
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var functions = {
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init: function() {
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functions.dispose.call(this);
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var refresh_el = $.proxy(refresh, this);
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refresh_el();
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var $s = $t.settings;
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if ($s.refreshMillis > 0) {
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this._timeagoInterval = setInterval(refresh_el, $s.refreshMillis);
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}
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},
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update: function(timestamp) {
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var date = (timestamp instanceof Date) ? timestamp : $t.parse(timestamp);
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$(this).data('timeago', { datetime: date });
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if ($t.settings.localeTitle) {
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$(this).attr("title", date.toLocaleString());
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}
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refresh.apply(this);
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},
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updateFromDOM: function() {
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$(this).data('timeago', { datetime: $t.parse( $t.isTime(this) ? $(this).attr("datetime") : $(this).attr("title") ) });
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refresh.apply(this);
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},
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dispose: function () {
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if (this._timeagoInterval) {
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window.clearInterval(this._timeagoInterval);
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this._timeagoInterval = null;
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}
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}
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};
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$.fn.timeago = function(action, options) {
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var fn = action ? functions[action] : functions.init;
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if (!fn) {
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throw new Error("Unknown function name '"+ action +"' for timeago");
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}
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// each over objects here and call the requested function
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this.each(function() {
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fn.call(this, options);
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});
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return this;
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};
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function refresh() {
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var $s = $t.settings;
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//check if it's still visible
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if ($s.autoDispose && !$.contains(document.documentElement,this)) {
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//stop if it has been removed
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$(this).timeago("dispose");
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return this;
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}
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var data = prepareData(this);
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if (!isNaN(data.datetime)) {
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if ( $s.cutoff === 0 || Math.abs(distance(data.datetime)) < $s.cutoff) {
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$(this).text(inWords(data.datetime));
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} else {
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if ($(this).attr('title').length > 0) {
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$(this).text($(this).attr('title'));
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}
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}
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}
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return this;
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}
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function prepareData(element) {
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element = $(element);
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if (!element.data("timeago")) {
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element.data("timeago", { datetime: $t.datetime(element) });
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var text = $.trim(element.text());
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if ($t.settings.localeTitle) {
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element.attr("title", element.data('timeago').datetime.toLocaleString());
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} else if (text.length > 0 && !($t.isTime(element) && element.attr("title"))) {
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element.attr("title", text);
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}
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}
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return element.data("timeago");
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}
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function inWords(date) {
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return $t.inWords(distance(date));
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}
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function distance(date) {
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return (new Date().getTime() - date.getTime());
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}
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// fix for IE6 suckage
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document.createElement("abbr");
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document.createElement("time");
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}));
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