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praveensewak on 09/26/12


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jquery timeago


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BrockSamsom


Smart Time Ago (jQuery)


 / Published in: jQuery
 

URL: http://pragmaticly.github.com/smart-time-ago/

Smart Time Ago is a little jQuery library to update the relative timestamps in your document intelligently.

  1. // Disclaimer: This is not my plugin. I am just posting here for bookmarking purposes.
  2. // Read below
  3.  
  4. // Usage: http://pragmaticly.github.com/smart-time-ago/
  5.  
  6. // Copyright 2012, Terry Tai, Pragmatic.ly
  7. // https://pragmatic.ly/
  8. // Licensed under the MIT license.
  9. // https://github.com/pragmaticly/smart-time-ago/blob/master/LICENSE
  10. //
  11. // Generated by CoffeeScript 1.3.3
  12.  
  13. (function() {
  14. var TimeAgo;
  15.  
  16. TimeAgo = (function() {
  17.  
  18. function TimeAgo(element, options) {
  19. this.startInterval = 60000;
  20. this.init(element, options);
  21. }
  22.  
  23. TimeAgo.prototype.init = function(element, options) {
  24. this.$element = $(element);
  25. this.options = $.extend({}, $.fn.timeago.defaults, options);
  26. this.updateTime();
  27. return this.startTimer();
  28. };
  29.  
  30. TimeAgo.prototype.startTimer = function() {
  31. var self;
  32. self = this;
  33. return this.interval = setInterval((function() {
  34. return self.refresh();
  35. }), this.startInterval);
  36. };
  37.  
  38. TimeAgo.prototype.stopTimer = function() {
  39. return clearInterval(this.interval);
  40. };
  41.  
  42. TimeAgo.prototype.restartTimer = function() {
  43. this.stopTimer();
  44. return this.startTimer();
  45. };
  46.  
  47. TimeAgo.prototype.refresh = function() {
  48. this.updateTime();
  49. return this.updateInterval();
  50. };
  51.  
  52. TimeAgo.prototype.updateTime = function() {
  53. var self;
  54. self = this;
  55. return this.$element.findAndSelf(this.options.selector).each(function() {
  56. var timeAgoInWords;
  57. timeAgoInWords = self.timeAgoInWords($(this).attr(self.options.attr));
  58. return $(this).html(timeAgoInWords);
  59. });
  60. };
  61.  
  62. TimeAgo.prototype.updateInterval = function() {
  63. var filter, newestTime, newestTimeInMinutes, newestTimeSrc;
  64. if (this.$element.findAndSelf(this.options.selector).length > 0) {
  65. if (this.options.dir === "up") {
  66. filter = ":first";
  67. } else if (this.options.dir === "down") {
  68. filter = ":last";
  69. }
  70. newestTimeSrc = this.$element.findAndSelf(this.options.selector).filter(filter).attr(this.options.attr);
  71. newestTime = this.parse(newestTimeSrc);
  72. newestTimeInMinutes = this.getTimeDistanceInMinutes(newestTime);
  73. if (newestTimeInMinutes >= 0 && newestTimeInMinutes <= 44 && this.startInterval !== 60000) {
  74. this.startInterval = 60000;
  75. return this.restartTimer();
  76. } else if (newestTimeInMinutes >= 45 && newestTimeInMinutes <= 89 && this.startInterval !== 60000 * 22) {
  77. this.startInterval = 60000 * 22;
  78. return this.restartTimer();
  79. } else if (newestTimeInMinutes >= 90 && newestTimeInMinutes <= 2519 && this.startInterval !== 60000 * 30) {
  80. this.startInterval = 60000 * 30;
  81. return this.restartTimer();
  82. } else if (newestTimeInMinutes >= 2520 && this.startInterval !== 60000 * 60 * 12) {
  83. this.startInterval = 60000 * 60 * 12;
  84. return this.restartTimer();
  85. }
  86. }
  87. };
  88.  
  89. TimeAgo.prototype.timeAgoInWords = function(timeString) {
  90. var absolutTime;
  91. absolutTime = this.parse(timeString);
  92. return "" + this.options.lang.prefixes.ago + (this.distanceOfTimeInWords(absolutTime)) + this.options.lang.suffix;
  93. };
  94.  
  95. TimeAgo.prototype.parse = function(iso8601) {
  96. var timeStr;
  97. timeStr = $.trim(iso8601);
  98. timeStr = timeStr.replace(/\.\d\d\d+/, "");
  99. timeStr = timeStr.replace(/-/, "/").replace(/-/, "/");
  100. timeStr = timeStr.replace(/T/, " ").replace(/Z/, " UTC");
  101. timeStr = timeStr.replace(/([\+\-]\d\d)\:?(\d\d)/, " $1$2");
  102. return new Date(timeStr);
  103. };
  104.  
  105. TimeAgo.prototype.getTimeDistanceInMinutes = function(absolutTime) {
  106. var timeDistance;
  107. timeDistance = new Date().getTime() - absolutTime.getTime();
  108. return Math.round((Math.abs(timeDistance) / 1000) / 60);
  109. };
  110.  
  111. TimeAgo.prototype.distanceOfTimeInWords = function(absolutTime) {
  112. var dim;
  113. dim = this.getTimeDistanceInMinutes(absolutTime);
  114. if (dim === 0) {
  115. return "" + this.options.lang.prefixes.lt + " " + this.options.lang.units.minute;
  116. } else if (dim === 1) {
  117. return "1 " + this.options.lang.units.minute;
  118. } else if (dim >= 2 && dim <= 44) {
  119. return "" + dim + " " + this.options.lang.units.minutes;
  120. } else if (dim >= 45 && dim <= 89) {
  121. return "" + this.options.lang.prefixes.about + " 1 " + this.options.lang.units.hour;
  122. } else if (dim >= 90 && dim <= 1439) {
  123. return "" + this.options.lang.prefixes.about + " " + (Math.round(dim / 60)) + " " + this.options.lang.units.hours;
  124. } else if (dim >= 1440 && dim <= 2519) {
  125. return "1 " + this.options.lang.units.day;
  126. } else if (dim >= 2520 && dim <= 43199) {
  127. return "" + (Math.round(dim / 1440)) + " " + this.options.lang.units.days;
  128. } else if (dim >= 43200 && dim <= 86399) {
  129. return "" + this.options.lang.prefixes.about + " 1 " + this.options.lang.units.month;
  130. } else if (dim >= 86400 && dim <= 525599) {
  131. return "" + (Math.round(dim / 43200)) + " " + this.options.lang.units.months;
  132. } else if (dim >= 525600 && dim <= 655199) {
  133. return "" + this.options.lang.prefixes.about + " 1 " + this.options.lang.units.year;
  134. } else if (dim >= 655200 && dim <= 914399) {
  135. return "" + this.options.lang.prefixes.over + " 1 " + this.options.lang.units.year;
  136. } else if (dim >= 914400 && dim <= 1051199) {
  137. return "" + this.options.lang.prefixes.almost + " 2 " + this.options.lang.units.years;
  138. } else {
  139. return "" + this.options.lang.prefixes.about + " " + (Math.round(dim / 525600)) + " " + this.options.lang.units.years;
  140. }
  141. };
  142.  
  143. return TimeAgo;
  144.  
  145. })();
  146.  
  147. $.fn.timeago = function(options) {
  148. if (options == null) {
  149. options = {};
  150. }
  151. return this.each(function() {
  152. var $this, data;
  153. $this = $(this);
  154. data = $this.data("timeago");
  155. if (!data) {
  156. $this.data("timeago", new TimeAgo(this, options));
  157. }
  158. if (typeof options === 'string') {
  159. return data[options]();
  160. }
  161. });
  162. };
  163.  
  164. $.fn.findAndSelf = function(selector) {
  165. return this.find(selector).add(this.filter(selector));
  166. };
  167.  
  168. $.fn.timeago.Constructor = TimeAgo;
  169.  
  170. $.fn.timeago.defaults = {
  171. selector: 'time.timeago',
  172. attr: 'datetime',
  173. dir: 'up',
  174. lang: {
  175. units: {
  176. second: "second",
  177. seconds: "seconds",
  178. minute: "minute",
  179. minutes: "minutes",
  180. hour: "hour",
  181. hours: "hours",
  182. day: "day",
  183. days: "days",
  184. month: "month",
  185. months: "months",
  186. year: "year",
  187. years: "years"
  188. },
  189. prefixes: {
  190. lt: "less than a",
  191. about: "about",
  192. over: "over",
  193. almost: "almost",
  194. ago: ""
  195. },
  196. suffix: ' ago'
  197. }
  198. };
  199.  
  200. }).call(this);

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