User:Mandarax/comments in local time.js

/*	COMMENTS IN LOCAL TIME Description: Changes UTC-based times and dates, such as those used in signatures, to be relative to local time. Documentation: Comments in Local Time Link: User:Gary King/comments in local time.js TODO Make lines with more than one timestamp format all timestamps on the line. $(document).ready(commentsInLocalTime); var language; function commentsInLocalTime {	// mw.config.get('wgCanonicalNamespace') = unsafeWindow.wgCanonicalNamespace /*		Language LOCALIZING THIS SCRIPT To localize this script, change the terms below, to the RIGHT of the colons, to the correct term used in that language. For example, in the French language, 'Today'		: 	'Today', would be		'Today'		: 	'Aujourd’hui', */	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.dateDifference) == 'undefined') LocalComments.dateDifference = true; if (typeof(LocalComments.dropDays) == 'undefined') LocalComments.dropDays = 0; if (typeof(LocalComments.dropMonths) == 'undefined') LocalComments.dropMonths = 0; 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.dayOfWeek) == 'undefined') LocalComments.dayOfWeek = true; if (typeof(LocalComments.timeFirst) == 'undefined') LocalComments.timeFirst = true; if (typeof(LocalComments.twentyFourHours) == 'undefined') LocalComments.twentyFourHours = false; /*		End Settings */	if (mw.config.get('wgCanonicalNamespace') == '' || mw.config.get('wgCanonicalNamespace') == 'MediaWiki' || mw.config.get('wgCanonicalNamespace') == 'Special' || mw.config.get('wgAction') == 'history') return false; replace_text(document.getElementById((mw.config.get('wgAction') == 'edit' || mw.config.get('wgAction') == 'submit') ? 'wikiPreview' : 'bodyContent'), /(\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; var month = add_leading_zero(time.getMonth + 1); var day = time.getDate; var hour = parseInt(time.getHours); var minute = add_leading_zero(time.getMinutes); // output am or pm depending on the date var ampm = ''; if (LocalComments.twentyFourHours) hour = add_leading_zero(hour); else {		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]; var descriptive_difference = ''; var last = ''; if (LocalComments.dateDifference) {			// calculate time difference from today var milliseconds_ago = today.getTime - time.getTime; var days_ago = Math.abs(Math.round(milliseconds_ago / 1000 / 60 / 60 / 24)); var difference_word = , last = ; if (today.valueOf >= time.valueOf) {				difference_word = language['ago']; if (days_ago <= 7) last = language['last'] + ' '; }			else {				difference_word = language['from now']; if (days_ago <= 7) last = language['this'] + ' '; }			// This method of computing the years & months is not exact. // However, it's better than the previous method that used // 1 January + delta days. That was usually quite off because // it mapped the second delta month to February, which has only 28 days. // This method is usually not more than one day off. var months_ago = Math.floor(days_ago / 365 * 12);		// close enough var total_months_ago = months_ago; var years_ago = Math.floor(months_ago / 12); if (months_ago < LocalComments.dropMonths) years_ago = 0; else if (LocalComments.dropMonths > 0) months_ago = 0; else months_ago = months_ago - years_ago * 12; if (days_ago < LocalComments.dropDays) {				months_ago = 0; years_ago = 0; }			else if (LocalComments.dropDays > 0) days_ago = 0; else days_ago = days_ago - Math.floor(total_months_ago * 365 / 12); var descriptive_parts = []; if (years_ago > 0) {				var fmt_years = years_ago + ' ' + pluralize(language['year'], years_ago, language['years']); descriptive_parts.push(fmt_years); }			if (months_ago > 0) {				var fmt_months = months_ago + ' ' + pluralize(language['month'], months_ago, language['months']); descriptive_parts.push(fmt_months); }			if (days_ago > 0) {				var fmt_days = days_ago + ' ' + pluralize(language['day'], days_ago, language['days']); descriptive_parts.push(fmt_days); }			descriptive_difference = ' (' + descriptive_parts.join(', ') + ' ' + difference_word + ')'; }		// 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 formatted_day_of_the_week = ''; if (LocalComments.dayOfWeek) formatted_day_of_the_week = ', ' + last + day_of_the_week; var date = formatted_date + formatted_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 != null && 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 if (node != null) {		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); } }