User:Guywan/Scripts/12HourFormat.js

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This user script seems to have a documentation page at User:Guywan/Scripts/12HourFormat.

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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"); // Backlink: [[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.
 */

$(function()
{
	////////////////
	// NAMESPACES //
	////////////////
	
	switch(mw.config.get("wgCanonicalNamespace"))
	{
		case "Special":
		
			switch(mw.config.get("wgCanonicalSpecialPageName"))
			{
				case "Contributions":
					$(".mw-contributions-list").children().each(function()
					{
						$(this).children().first().text(partition($(this).children().first().text()));
					});
					break;
					
				case "Log":
				case "Userrights":
					$("ul").children().each(function()
					{	
						$(this).html(regexpReplace($(this).html(), 1, 5));
					});
					break;
					
				case "Project":
					// TODO
					break;
			}
			break;
			
		case "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 a table matching the pattern "dd:dd," where d is a digit.
					if(time.match(/\d\d:\d\d,/))
					{
						$(this).text(partition(text));
					}
				}
			});
			break;
			
		case "User":
			// TODO
			break;
	}
	
	/////////////
	// ACTIONS //
	/////////////
	
	switch(mw.config.get("wgAction"))
	{
		case "history":
			$("span.mw-history-histlinks ~ a").each(function()
			{
				if($(this).attr("class") == "mw-changeslist-date")
				{
					$(this).text(partition($(this).text()));
				}
			});
			break;
			
		case "view":
		
			if(document.title.indexOf("Difference between revisions") > -1)
			{
				var comp = "#mw-diff-ntitle1 > strong > a";
				var temp;
				for(i = 0; i < 2; i++)
				{
					temp = ($(comp).html());
					
					$(comp).html(temp.replace(/(\d\d:\d\d)/g, convert(temp.substr(temp.indexOf(":") - 2, 5))));
					
					comp = "#mw-diff-otitle1 > strong > a";
				}
				
				$(".diff-currentversion-title").text(partition($(".diff-currentversion-title").text()));
			}
			
			// Modify time in permalink pages.
			if($("div").hasClass("#mw-revision"))
			{
				$("#mw-revision-date").html(regexpReplace($("#mw-revision-date").html(), 0, 5));
			}
			
			// Modify user signatures.
			var html = $("#mw-content-text").html();
			
			switch(mw.config.get("wgDefaultDateFormat"))
			{
				case "dmy":
					//									HH:MM, DD MM YY							  //
					html = html.replace(/(<\/a>\)\s\d\d:\d\d,\s\d{1,2}\s\w+\s\d{4}\s)/g, partition);
					break;
					
				case "mdy":
					//									HH:MM, MM DD YY							  //
					html = html.replace(/(<\/a>\)\s\d\d:\d\d,\s\w+\s\d{1,2}\s\d{4}\s)/g, partition);
					break;
					
				case "ymd":
					//									HH:MM, YY MM DD							  //
					html = html.replace(/(<\/a>\)\s\d\d:\d\d,\s\d{4}\s\w+\s\d{1,2}\s)/g, partition);
					break;
			}
			
			$("#mw-content-text").html(html);
			break;
			
		case "edit":
			// TODO
			break;
	}
	
	///////////
	// OTHER //
	///////////
	
	// Modify time in warning banners.
	if($("div").hasClass("mw-warning-with-logexcerpt mw-content-ltr"))
	{
		$(".mw-warning-with-logexcerpt.mw-content-ltr > ul").children().each(function()
		{
			$(this).html(regexpReplace($(this).html(), 1, 5));
		});
	}

	// Modify the time in the footer of most pages.
	if($("#footer-info-lastmod").length)
	{
		$("#footer-info-lastmod").text(partition($("#footer-info-lastmod").text()));
	}
});

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 (front + 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");
}