MediaWiki:Gadget/CommentsInLocalTime.js

/*   Documentation: Comments in Local Time

addOnloadHook(function {   // wgCanonicalNamespace = unsafeWindow.wgCanonicalNamespace    /*        Language    */    var language =         {            // relative terms            'Today'        :     'Today',            'Yesterday'    :     'Yesterday',            'Tomorrow'    :     'Tomorrow',            'last'        :     'last',            'this'        :     'this',            // days of the week            'Sunday'    :     'Sunday',            'Monday'    :     'Monday',            'Tuesday'    :     'Tuesday',            'Wednesday'    :     'Wednesday',            'Thursday'    :     'Thursday',            'Friday'    :     'Friday',            'Saturday'    :     'Saturday',            // months of the year            'January'    :     'January',            'February'    :     'February',            'March'        :     'March',            'April'        :     'April', 'May'       :     'May', 'June'       :     'June', 'July'       :     'July', 'August'   :     'August', 'September'   :     'September', 'October'   :     'October', 'November'   :     'November', 'December'   :     'December', // difference words 'ago'       :     'ago', 'from now'   :     'from now', // date phrases 'year'       :     'year', 'years'       :     'years', 'month'       :     'month', 'months'   :     'months', 'day'       :     'day', 'days'       :     'days' };   /*        Settings */   if (typeof(LocalComments) == 'undefined') LocalComments = {}; if (typeof(LocalComments.dateFormat) == 'undefined') {       // Deprecated: LocalizeConfig if (typeof(LocalizeConfig) != 'undefined' && typeof(LocalizeConfig.dateFormat) != 'undefined' && LocalizeConfig.dateFormat != '') LocalComments.dateFormat = LocalizeConfig.dateFormat; else LocalComments.dateFormat = 'dmy'; }   if (typeof(LocalComments.timeFirst) == 'undefined') LocalComments.timeFirst = true; if (typeof(LocalComments.dateDifference) == 'undefined') LocalComments.dateDifference = true; /*       End Settings */   if (wgCanonicalNamespace == '' || wgCanonicalNamespace == 'MediaWiki' || wgCanonicalNamespace == 'Special') return; var disabled_urls = new Array('action=history'), unique_url = false, wikiPreview = new Array('action=edit', 'action=submit'); for (var i = 0; i < disabled_urls.length; i++) {       if (document.location.href.indexOf(disabled_urls[i]) != -1) return; }   for (var i = 0; i < wikiPreview.length; i++) {       if (document.location.href.indexOf(wikiPreview[i]) != -1) unique_url = 'wikiPreview'; }   var element_id = unique_url ? unique_url : 'bodyContent'; replace_text(document.getElementById(element_id), /(\d\d):(\d\d), (\d{1,2}) ([A-Z][a-z]+) (\d{4}) \(UTC\)/g, adjust_time);

function add_leading_zero(number) {   if (number < 10) number = '0' + number; return number; }

function adjust_time(original_timestamp, old_hour, old_minute, old_day, old_month, old_year, offset) {   var today = new Date, yesterday = new Date, tomorrow = new Date; yesterday.setDate(yesterday.getDate - 1); tomorrow.setDate(tomorrow.getDate + 1); // set the date entered var time = new Date; time.setUTCFullYear(old_year, convert_month_to_number(old_month), old_day); time.setUTCHours(old_hour); time.setUTCMinutes(old_minute); // determine the time offset var utc_offset = -1 * time.getTimezoneOffset / 60; if (utc_offset >= 0) utc_offset = '+' + utc_offset; else utc_offset = '−' + Math.abs(utc_offset); // set the date bits to output var year = time.getFullYear, month = add_leading_zero(time.getMonth + 1); var day = time.getDate; var hour = parseInt(time.getHours), minute = add_leading_zero(time.getMinutes);

// output am or pm depending on the date var ampm = 'am'; if (hour > 11) ampm = 'pm'; if (hour > 12) hour -= 12; if (hour == '00') hour = 12; // return 'today' or 'yesterday' if that is the case if (year == today.getFullYear && month == add_leading_zero(today.getMonth + 1) && day == today.getDate) var date = language['Today']; else if (year == yesterday.getFullYear && month == add_leading_zero(yesterday.getMonth + 1) && day == yesterday.getDate) var date = language['Yesterday']; else if (year == tomorrow.getFullYear && month == add_leading_zero(tomorrow.getMonth + 1) && day == tomorrow.getDate) var date = language['Tomorrow']; else {       // calculate day of week var day_names = new Array(language['Sunday'], language['Monday'], language['Tuesday'], language['Wednesday'], language['Thursday'], language['Friday'], language['Saturday']); var day_of_the_week = day_names[time.getDay]; if (LocalComments.dateDifference) {           // calculate time difference from today and the timestamp today = new Date(today.getYear, today.getMonth, today.getDate); time = new Date(time.getYear, time.getMonth, time.getDate); var milliseconds_ago = today.getTime - time.getTime; var days_ago = Math.round(milliseconds_ago / 1000 / 60 / 60 / 24);

var difference, difference_word = , last = ; if (today.valueOf >= time.valueOf) {               difference = new Date(today.valueOf - time.valueOf); difference_word = language['ago']; if (days_ago <= 7) last = language['last'] + ' '; }           else {               difference = new Date(time.valueOf - today.valueOf); difference_word = language['from now']; if (days_ago >= -7) last = language['this'] + ' '; }           var descriptive_difference = [];

if (difference.getYear - 70 > 0) {               var years_ago = (difference.getYear - 70) + ' ' + pluralize(language['year'], difference.getYear - 70, language['years']); descriptive_difference.push(years_ago); }           if (difference.getMonth > 0) {               var months_ago = difference.getMonth + ' ' + pluralize(language['month'], difference.getMonth, language['months']); descriptive_difference.push(months_ago); }           if (difference.getDate > 0) {               var new_days_ago = difference.getDate + ' ' + pluralize(language['day'], difference.getDate, language['days']); descriptive_difference.push(new_days_ago); }           descriptive_difference = ' (' + descriptive_difference.join(', ') + ' ' + difference_word + ')'; }       else {           descriptive_difference = ''; last = ''; }       // format the date according to user preferences var formatted_date = '', month_name = convert_number_to_month(time.getMonth); switch (LocalComments.dateFormat.toLowerCase) {           case 'dmy': formatted_date = day + ' ' + month_name + ' ' + year; break; case 'mdy': formatted_date = month_name + ' ' + day + ', ' + year; break; default: formatted_date = year + '-' + month + '-' + add_leading_zero(day); }       var date = formatted_date + ', ' + last + day_of_the_week + descriptive_difference; }   var time = hour + ':' + minute + ' ' + ampm; if (LocalComments.timeFirst) var return_date = time + ', ' + date + ' (UTC' + utc_offset + ')'; else var return_date = date + ', ' + time + ' (UTC' + utc_offset + ')';

return return_date; }

function convert_month_to_number(month) {  var output = new Date(month + ' 1, 2001'); return output.getMonth; }

function convert_number_to_month(number) {   var month = new Array(language['January'], language['February'], language['March'], language['April'], language['May'], language['June'], language['July'], language['August'], language['September'], language['October'], language['November'], language['December']); return month[number]; }

function pluralize(term, count, plural) { if (plural == null) plural = term + 's';

return (count == 1 ? term : plural) }

function replace_text(node, search, replace) {   if (node.nodeType == 3) {       var value = node.nodeValue; var matches = value.match(search); if (matches != null) {           var node_parent_node = node.parentNode; var old_node = node; // old_node_list = node.parentNode.childNodes; for (match = 0; match < matches.length; match++) {               // Create MATCHES[MATCH] var position; if (after_match != null && length != null) position = after_match.search(search) + before_match.length + length; else position = value.search(search); var length = matches[match].toString.length; var before_match = value.substring(0, position); var after_match = value.substring(position + length); var span = document.createElement('span'); span.setAttribute('class', 'localcomments'); span.style.fontSize = '95%'; span.style.whiteSpace = 'nowrap'; span.setAttribute('title', matches[match]); span.appendChild(document.createTextNode(matches[match].toString.replace(search, replace))); var new_node = document.createDocumentFragment; new_node.appendChild(document.createTextNode(before_match)); new_node.appendChild(span); new_node.appendChild(document.createTextNode(after_match));

node_parent_node.replaceChild(new_node, old_node); break; }       }    }    else {       var children = [], child = node.firstChild; while (child) {           children[children.length] = child; child = child.nextSibling; }       for (var child = 0; child < children.length; child++) replace_text(children[child], search, replace); } }

});