// SharePoint InstantListFilter - developed by Jaap Vossers

$(document).ready(function()
{	
	jQuery.extend(jQuery.expr[':'], {
	  containsIgnoreCase: "(a.textContent||a.innerText||jQuery(a).text()||'').toLowerCase().indexOf((m[3]||'').toLowerCase())>=0"
	});

	
	$("table.ms-listviewtable tr.ms-viewheadertr").each(function()
	{
		if($("td.ms-vh-group", this).size() > 0)
		{
			return;	
		}
		
		var tdset = "";
		
		var colIndex = 0;
		
		$(this).children("th,td").each(function()
		{
			if($(this).hasClass("ms-vh-icon"))
			{
				// attachment
				tdset += "<td></td>";
			}
			else
			{
				// filterable
				tdset += "<td><input type='text' class='vossers-filterfield' filtercolindex='" + colIndex + "' /></td>";				
			}
			
			colIndex++;
		});
		
		var tr = "<tr class='vossers-filterrow'>" + tdset + "</tr>";
		
		$(tr).insertAfter(this);
	});	
	
	
	$("input.vossers-filterfield")
		.css("border", "1px solid #7f9db9")
		.css("width", "100%")
		.css("margin", "2px")
		.css("padding", "2px")
		.keyup(function()
		{			
			var inputClosure = this;
			
			if(window.VossersFilterTimeoutHandle)
			{
				clearTimeout(window.VossersFilterTimeoutHandle);
			}
			
			window.VossersFilterTimeoutHandle = setTimeout(function()
			{
				var filterValues = new Array();
				
				$("input.vossers-filterfield", $(inputClosure).parents("tr:first")).each(function()
				{				
					if($(this).val() != "")				
					{
						filterValues[$(this).attr("filtercolindex")] = $(this).val();
					}
				});		
				
							
				$(inputClosure).parents("tr.vossers-filterrow").nextAll("tr").each(function()
				{
					var mismatch = false;
					
					$(this).children("td").each(function(colIndex)
					{
						if(mismatch) return;
						
						if(filterValues[colIndex])
						{
							var val = filterValues[colIndex];
							
							// replace double quote character with 2 instances of itself
							val = val.replace(/"/g, String.fromCharCode(34) + String.fromCharCode(34));							
																				
							if($(this).is(":not(:containsIgnoreCase('" + val + "'))"))
							{
								mismatch = true;
							}						
						}
					});
					
					if(mismatch)
					{
						$(this).hide();
					}
					else
					{
						$(this).show();
					}		
				});				
				
			}, 250);
		});
});