User:Guywan/Scripts/12HourFormat.js

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/*
 * Install with:
 * <code><nowiki>{{subst:Iusc|User:Guywan/Scripts/12HourFormat.js}}</nowiki></code>
 * or:
 * <code><nowiki>importScript("User:Guywan/Scripts/12HourFormat.js"); // Backling: [[User:Guywan/Scripts/12HoursFormat.js]]</nowiki></code>
 *
 * This script was originally authored by User:Bility, [[User:Bility/convert24hourtime.js]].
 * Considerable contributions by User:DannyS712, [[User:DannyS712/12Hours.js]], whose version I have forked.
 * I have mainly streamlined the code and introduced more functionality.
 */

var config =
{
	name 	: "[[User:Guywan/Scripts/12HourFormat]]",
	version : 3.0,
	debug	: false
};

if(mw.config.get("wgAction") == "history"
	|| mw.config.get("wgAction") == "view"
	|| mw.config.get("wgAction") == "edit"
	|| mw.config.get("wgCanonicalNamespace") == "Special")
{
	$(function()
	{
		// Modify time when viewing page history.
		if(mw.config.get("wgAction") == "history")
		{
			$("span.mw-history-histlinks ~ a").each(function()
			{
				if($(this).attr("class") === "mw-changeslist-date")
				{
					var time = partition($(this).text());
					
					$(this).text(time[0] + time[1] + time[2]);
				}
			});
		}
		else if(mw.config.get("wgAction") == "edit")
		{
			if($("div").hasClass("mw-warning-with-logexcerpt mw-content-ltr"))
			{	
				var html = $(".mw-logline-delete").html();
				
				$(".mw-logline-delete").html(regexpReplace(html));
			}
		}
		else if(mw.config.get("wgCanonicalNamespace") == "File")
		{
			// Modify time in file history table.
			$("td > a").each(function()
			{
				var text = $(this).text();
				
				var index = text.indexOf(":");
				if(index > -1)
				{
					var time = text.substr(index - 2, 6);
					
					// Will convert anything in the table matching the pattern "dd:dd," where d is a digit.
					if(time.match(/\d\d:\d\d,/))
					{
						text = partition(text);
						$(this).text(text[0] + text[1] + text[2]);
					}
				}
			});
		}
		else if(mw.config.get("wgCanonicalNamespace") == "Special")
		{
			// Modify time when viewing user contributions.
			if(mw.config.get("wgCanonicalSpecialPageName") == "Contributions")
			{
				$(".mw-contributions-list").children().each(function()
				{
					var text = partition($(this).children().first().text());
					
					$(this).children().first().text(text[0] + text[1] + text[2]);
				});
			}
			// Modify time when viewing user log info.
			else if(mw.config.get("wgCanonicalSpecialPageName") == "Log")
			{
				$("ul").first().children().each(function()
				{
					var html = $(this).html();
				
					$(this).html(regexpReplace(html));
				});
			}
			// Modify time in user rights page.
			else if(mw.config.get("wgCanonicalSpecialPageName") == "Userrights")
			{
				$("ul").children().each(function()
				{
					var html = $(this).html();
				
					$(this).html(regexpReplace(html));
				});
			}
		}
		// Modify time when comparing two revisions.
		else if((mw.config.get("wgAction") == "view") && (document.title.indexOf("Difference between revisions") > -1))
		{
			var comp = "#mw-diff-ntitle1 > strong > a";
			var text = "";
			for(i = 0; i < 2; i++)
			{
				text = partition($(comp).text());
				
				$(comp).text(text[0] + text[1] + text[2]);
				
				comp = "#mw-diff-otitle1 > strong > a";
			}
			
			text = partition($(".diff-currentversion-title").text());
			$(".diff-currentversion-title").text(text[0] + text[1] + text[2]);
		}
		
		// Modify the time in the footer of most pages.
		if($("#footer-info-lastmod").length)
		{
			var footer = partition($("#footer-info-lastmod").text());
			
			$("#footer-info-lastmod").text(footer[0] + footer[1] + footer[2]);
		}
	});
}

function partition(text)
{
	var front = text.substr(0, text.indexOf(":") - 2);
	var time = convert(text.substr(text.indexOf(":") - 2, 5));
	var end = text.substr(text.indexOf(":") + 3, text.length);
	
	return (font + time + end);
}

function regexpReplace(html, start, num)
{	
	return html.replace(/(\d\d:\d\d)/g, convert(html.substr(start, num)));
}

function convert(time)
{
	var hour = parseFloat(time.substr(0, 2));
	
	if(hour >= 12)
	{
		if(hour != 12)
		{
			hour = hour - 12;
		}
		
		return (hour + time.substr(2, 5) + " PM");
	}
	
	if(hour === 0)
	{
		hour = 12
	}
	
	return (hour + time.substr(2, 5) + " AM");
}