96 lines
3.7 KiB
JavaScript
96 lines
3.7 KiB
JavaScript
// All credit goes to Rick Olson.
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(function($) {
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$.fn.relatizeDate = function() {
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return $(this).each(function() {
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if ($(this).hasClass( 'relatized' )) return
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$(this).text( $.relatizeDate(this) ).addClass( 'relatized' )
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})
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}
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$.relatizeDate = function(element) {
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return $.relatizeDate.timeAgoInWords( new Date($(element).text()) )
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}
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// shortcut
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$r = $.relatizeDate
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$.extend($.relatizeDate, {
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shortDays: [ 'Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat' ],
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days: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'],
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shortMonths: [ 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' ],
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months: [ 'January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December' ],
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/**
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* Given a formatted string, replace the necessary items and return.
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* Example: Time.now().strftime("%B %d, %Y") => February 11, 2008
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* @param {String} format The formatted string used to format the results
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*/
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strftime: function(date, format) {
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var day = date.getDay(), month = date.getMonth();
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var hours = date.getHours(), minutes = date.getMinutes();
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var pad = function(num) {
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var string = num.toString(10);
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return new Array((2 - string.length) + 1).join('0') + string
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};
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return format.replace(/\%([aAbBcdHImMpSwyY])/g, function(part) {
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switch(part[1]) {
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case 'a': return $r.shortDays[day]; break;
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case 'A': return $r.days[day]; break;
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case 'b': return $r.shortMonths[month]; break;
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case 'B': return $r.months[month]; break;
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case 'c': return date.toString(); break;
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case 'd': return pad(date.getDate()); break;
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case 'H': return pad(hours); break;
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case 'I': return pad((hours + 12) % 12); break;
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case 'm': return pad(month + 1); break;
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case 'M': return pad(minutes); break;
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case 'p': return hours > 12 ? 'PM' : 'AM'; break;
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case 'S': return pad(date.getSeconds()); break;
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case 'w': return day; break;
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case 'y': return pad(date.getFullYear() % 100); break;
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case 'Y': return date.getFullYear().toString(); break;
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}
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})
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},
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timeAgoInWords: function(targetDate, includeTime) {
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return $r.distanceOfTimeInWords(targetDate, new Date(), includeTime);
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},
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/**
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* Return the distance of time in words between two Date's
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* Example: '5 days ago', 'about an hour ago'
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* @param {Date} fromTime The start date to use in the calculation
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* @param {Date} toTime The end date to use in the calculation
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* @param {Boolean} Include the time in the output
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*/
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distanceOfTimeInWords: function(fromTime, toTime, includeTime) {
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var delta = parseInt((toTime.getTime() - fromTime.getTime()) / 1000, 10);
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if (delta < 60) {
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return 'just now';
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} else if (delta < 120) {
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return 'about a minute ago';
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} else if (delta < (45*60)) {
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return (parseInt(delta / 60, 10)).toString() + ' minutes ago';
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} else if (delta < (120*60)) {
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return 'about an hour ago';
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} else if (delta < (24*60*60)) {
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return 'about ' + (parseInt(delta / 3600, 10)).toString() + ' hours ago';
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} else if (delta < (48*60*60)) {
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return '1 day ago';
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} else {
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var days = (parseInt(delta / 86400, 10)).toString();
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if (days > 5) {
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var fmt = '%B %d, %Y'
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if (includeTime) fmt += ' %I:%M %p'
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return $r.strftime(fromTime, fmt);
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} else {
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return days + " days ago"
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}
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}
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}
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})
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})(jQuery);
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