User:Guywan/Scripts/12HourFormat.js

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// [[Category:Wikipedia scripts]]
// <nowiki>
$(function()
{
	////////////////
	// NAMESPACES //
	////////////////
	
	switch(mw.config.get("wgCanonicalNamespace"))
	{
		case "Special":
			switch(mw.config.get("wgCanonicalSpecialPageName"))
			{
				case "Contributions":
					$(".mw-changeslist-date").each(function()
					{
						$(this).html(rxReplace($(this).html()));
					});
					break;
					
				case "Log":
				case "Userrights":
				case "AbuseLog":
					$("ul").children().each(function()
					{	
						$(this).html($(this).html().replace(/()(\d\d:\d\d)(, )/g, rxPartition));
					});
					break;
					
				case "Listusers":
					$("ul").children().each(function()
					{
						$(this).html($(this).html().replace(/(on \d{1,2} \w  \d{4} at )(\d\d:\d\d)()/g, rxPartition));
					});
					break;
					
				case "Project":
					// TODO
					break;
			}
			break;
			
		case "File":
			// Modify time in file history table.
			$("td > a").each(function()
			{
				// DMY
				$(this).html($(this).html().replace(/()(\d\d:\d\d)(, \d{1,2} \w  \d{4})/g, rxPartition));
				// MD,Y
				$(this).html($(this).html().replace(/()(\d\d:\d\d)(, \w  \d{1,2}, \d{4})/g, rxPartition));
			});
			break;
			
		case "User":
			// TODO
			break;
	}
	
	/////////////
	// ACTIONS //
	/////////////
	
	switch(mw.config.get("wgAction"))
	{
		case "history":
			$(".mw-changeslist-date").each(function()
			{
				$(this).text(rxReplace($(this).text()));
			});
			break;
			
		case "view":
			if(document.title.indexOf("Difference between revisions") > -1)
			{
				$("#mw-diff-ntitle1 > strong > a").html(rxReplace($("#mw-diff-ntitle1 > strong > a").html()));
				$("#mw-diff-otitle1 > strong > a").html(rxReplace($("#mw-diff-otitle1 > strong > a").html()));
				$(".diff-currentversion-title").text(rxReplace($(".diff-currentversion-title").text()));
			}
			
			// Modify time in permalink pages.
			if($("div").hasClass("mw-revision"))
			{
				$("#mw-revision-date").html(rxReplace($("#mw-revision-date").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()
		{
			$(this).html(rxReplace($(this).html()));
		});
	}

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

	/*
	 * Used when it is unlikely non-times will be matched.
	 */
	function rxReplace(html)
	{
		// Note a call to html on nonexistent elements returns undefined e.g. $('.sssssss').html(). Guard against this being passed in.
		html = html || '';
		return html.replace(/(\d\d:\d\d)/g, convert);
	}
	
	/*
	 * Used when a very specific match needs to be made and
	 * only a substring of the match should be modified.
	 */
	function rxPartition(match, p1, p2, p3)
	{
		return (p1   convert(p2)   p3);
	}
	
	function convert(time)
	{
		var hour = parseFloat(time.substr(0, 2));
		
		if(hour >= 12)
		{
			if(hour != 12)
			{
				hour = hour - 12;
			}
			
			return (hour   time.substr(2)   " PM");
		}
		
		if(hour === 0)
		{
			hour = 12;
		}
		
		return (hour   time.substr(2)   " AM");
	}
});
// </nowiki>