利用者:Lemonsquash/comments in local time(en).js

/*
	日時入り著名の UTC 日時を、ローカルの日時の表記にで置き換えるスクリプト。

		[[:user:Lemonsquash/comments in local time(ja).js]] 
			日時の表示形式を 日本語版 Wikipedia の日時入り著名のスタイルに準拠

			オリジナル表記: 2009年7月1日 (水) 18:02 \(UTC\)
			  見た目の表記: 2009年7月2日 (水) 03:02 (UTC+9)

		[[:user:Lemonsquash/comments in local time(en).js]] 
			日時の表示形式を 英語版 Wikipedia の日時入り著名のスタイルに準拠

			オリジナル表記: 2009年7月1日 (水) 18:02 \(UTC\)
			  見た目の表記: 03:02, 2 July 2009 (UTC+9)


	なお、これらは見た目のみの変更であり、編集時のテキストには元の表記のままとなります。
*/

$(function()
{
	// wgCanonicalNamespace = unsafeWindow.wgCanonicalNamespace
	
	/*
		Language
	*/
	var language = 
		{
			// 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'
		}
	
	/*
		Settings
	*/
	if (typeof(LocalComments) == 'undefined')
		LocalComments = {};

 
	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{1,2}):(\d{1,2})\s+(\d{4})年(\d{1,2})月(\d{1,2})日\s*\(UTC\)/g, adjust_time2);
	replace_text(document.getElementById(element_id), /(\d{4})年(\d{1,2})月(\d{1,2})日\s*\([月火水木金土日]\)\s*(\d{1,2}):(\d{1,2})\s*\(UTC\)/g, adjust_time);

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

function adjust_time2(original_timestamp, old_hour, old_minute, old_year, old_month, old_day, offset)
{
	return adjust_time(original_timestamp, old_year, old_month, old_day, old_hour, old_minute, offset);
}

function adjust_time(original_timestamp, old_year, old_month, old_day, old_hour, old_minute, 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, old_month-1, 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());

	
	// calculate day of week
	day_names = new Array(language['Sunday'], language['Monday'], language['Tuesday'], language['Wednesday'], language['Thursday'], language['Friday'], language['Saturday']);
	day_of_the_week = day_names[time.getDay()];
	
	// format the date according to user preferences
	var formatted_date = '', month_name = convert_number_to_month(time.getMonth());
	
	formatted_date = day + ' ' + month_name + ' ' + year;
	
	var date = formatted_date;

	var time = add_leading_zero(hour) + ':' + minute;

	utc_offset = ' (UTC' + utc_offset + ')';


	var return_date = time + ', ' + date + utc_offset;

	return '‎' + return_date;
}

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 replace_text(node, search, replace)
{
	var length = 0;

	if (node.nodeType == 3)
	{
		value = node.nodeValue;
		matches = value.match(search);
		
		if (matches != null)
		{
			node_parent_node = node.parentNode;
			old_node = node;
			// old_node_list = node.parentNode.childNodes;
			
			for (match = 0; match < matches.length; match++)
			{
				if (after_match != null && length != null)
					position = after_match.search(search) + before_match.length + length;
				else
					position = value.search(search);
				length = matches[match].toString().length;
				before_match = value.substring(0, position);
				var after_match = value.substring(position + length);
				
				first_span = document.createElement('span');			
				first_span.setAttribute('style', 'font-size: 95%; white-space: nowrap;');
				
				second_span = document.createElement('span');
				second_span.setAttribute('class', 'localcomments');
				second_span.setAttribute('title', matches[match]);
				second_span.appendChild(document.createTextNode(matches[match].toString().replace(search, replace)));
				
				first_span.appendChild(second_span);
				
				new_node = document.createDocumentFragment();
				new_node.appendChild(document.createTextNode(before_match));
				new_node.appendChild(first_span);
				new_node.appendChild(document.createTextNode(after_match));

				// new_node_list = new_node.childNodes;
				node_parent_node.replaceChild(new_node, old_node);
				// old_node_list = new_node_list;
				
				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);
	}
}

});