//function codeBlockHandler(id, data, value)
function codeBlockHandler()
{
	// handle groups of snippets to make sure at least one from the group is always shown
	HandleSnippetGroups();

	// handle any remaining snippets that aren't in groups
	var spanElements = document.getElementsByTagName("span");
	for(var i = 0; i < spanElements.length; ++i)
	{
		var devlang = spanElements[i].getAttribute("codeLanguage");
		if (devlang == null) continue;
	
		if (HasSnippetGroupAncestor(spanElements[i])) continue;
	
		var checkboxId = GetDevlangCheckboxId(devlang);
		if (checkboxId != null && checkboxId != "")
		{
			if (docSettings[checkboxId] == "on")
				spanElements[i].style.display = "";
			else
				spanElements[i].style.display = "none";
	}
}
}

function HasSnippetGroupAncestor(object)
{
	var parent = object.parentElement;
	if (parent == null) return false;

	var className = parent.className;
	if (className != null && className == "snippetgroup")
		return true

	return HasSnippetGroupAncestor(parent);
}

function HandleSnippetGroups()
{
	var divs = document.getElementsByTagName("DIV");
	var divclass;
	for (var i = 0; i < divs.length; i++)
	{
		divclass = divs[i].className;
		if (divclass == null || divclass != "snippetgroup") continue;
	
		// if all snippets in this group would be hidden by filtering display them all anyhow
		var unfilteredCount = GetUnfilteredSnippetCount(divs[i]);
	
		var spanElements = divs[i].getElementsByTagName("span");
		for(var j = 0; j < spanElements.length; ++j)
		{
			var devlang = spanElements[j].getAttribute("codeLanguage");
			if (devlang == null) continue;

			var checkboxId = GetDevlangCheckboxId(devlang);
		
			// for filtered devlangs, determine whether they should be shown/hidden
			if (checkboxId != null && checkboxId != "")
			{
				if (unfilteredCount == 0 || docSettings[checkboxId] == "on")
					spanElements[j].style.display = "";
				else
					spanElements[j].style.display = "none";
		}
	}
}
}

function GetUnfilteredSnippetCount(group)
{
	var count = 0;
	var spanElements = group.getElementsByTagName("span");
	for(var i = 0; i < spanElements.length; ++i)
	{
		var devlang = spanElements[i].getAttribute("codeLanguage");
		var checkboxId = GetDevlangCheckboxId(devlang);
		if (checkboxId != null && checkboxId != "")
		{
			if (docSettings[checkboxId] == "on")
				count++;
	}
}
	return count;
}

function GetDevlangCheckboxId(devlang)
{
	switch (devlang)
	{
		case "VisualBasic":
		case "VisualBasicDeclaration":
		case "VisualBasicUsage":
			return devlangsMenu.GetCheckboxId("VisualBasic");
		case "CSharp":
			return devlangsMenu.GetCheckboxId("CSharp");
		case "ManagedCPlusPlus":
			return devlangsMenu.GetCheckboxId("ManagedCPlusPlus");
		case "JScript":
			return devlangsMenu.GetCheckboxId("JScript");
		case "JSharp":
			return devlangsMenu.GetCheckboxId("JSharp");
		case "JavaScript":
			return devlangsMenu.GetCheckboxId("JavaScript");
		case "FSharp":
			return devlangsMenu.GetCheckboxId("FSharp");
		default:
			return "";
}
}

// update stylesheet display settings for spans to show according to user's devlang preference
function styleSheetHandler(oneDevlang)
{
	var devlang = (oneDevlang != "") ? oneDevlang : GetDevlangPreference();

	var sd = getStyleDictionary();

	if (devlang == 'cs') {
		sd['span.cs'].display = 'inline';
		sd['span.vb'].display = 'none';
		sd['span.cpp'].display = 'none';
		sd['span.nu'].display = 'none';
		sd['span.fs'].display = 'none';
} else if (devlang == 'vb') {
		sd['span.cs'].display = 'none';
		sd['span.vb'].display = 'inline';
		sd['span.cpp'].display = 'none';
		sd['span.nu'].display = 'none';
		sd['span.fs'].display = 'none';
} else if (devlang == 'cpp') {
		sd['span.cs'].display = 'none';
		sd['span.vb'].display = 'none';
		sd['span.cpp'].display = 'inline';
		sd['span.nu'].display = 'none';
		sd['span.fs'].display = 'none';
} else if (devlang == 'nu') {
		sd['span.cs'].display = 'none';
		sd['span.vb'].display = 'none';
		sd['span.cpp'].display = 'none';
		sd['span.nu'].display = 'inline';
		sd['span.fs'].display = 'none';
} else if (devlang == 'fs') {
		sd['span.cs'].display = 'none';
		sd['span.vb'].display = 'none';
		sd['span.cpp'].display = 'none';
		sd['span.nu'].display = 'none';
		sd['span.fs'].display = 'inline';
}
}

function getStyleDictionary() {
		var styleDictionary = new Array();

		// iterate through stylesheets
		var sheets = document.styleSheets;
	
		for(var i=0; i<sheets.length;i++) {
			var sheet = sheets[i];

			// Ignore sheets at ms-help Urls
				if (sheet.href.substr(0,8) == 'ms-help:') continue;

			// get sheet rules
			var rules = sheet.cssRules;
		
			if (rules == null) rules = sheet.rules;

			// iterate through rules
			for(j=0; j<rules.length; j++) {
				var rule = rules[j];

				// Ignore ones that aren't defined
						if(rule.selectorText == null)
							continue;

				// add rule to dictionary
				styleDictionary[rule.selectorText.toLowerCase()] = rule.style;
		}
	}

		return(styleDictionary);
}

function GetDevlangPreference()
{
	var devlangCheckboxIds = devlangsMenu.GetCheckboxIds();
	var checkedCount = 0;
	var devlang;
	for (var key in devlangCheckboxIds)
	{
		if (docSettings[devlangCheckboxIds[key]] == "on")
		{
			checkedCount++;
			checkboxData = devlangsMenu.GetCheckboxData(devlangCheckboxIds[key]);
			var dataSplits = checkboxData.split(',');
			if (dataSplits.length > 1)
				devlang = dataSplits[1];
	}
}
	return (checkedCount == 1 ? devlang : "nu");
}



function memberlistHandler()
{
   // get all the <tr> nodes in the document
	var allRows = document.getElementsByTagName("tr");
	var i;

	for(i = 0; i < allRows.length; ++i)
	{
		var memberdata = allRows[i].getAttribute("data");
		if (memberdata != null)
		{
			if ((ShowBasedOnInheritance(memberdata) == false) || 
				(ShowBasedOnVisibility(memberdata) == false) || 
				(ShowBasedOnFramework(memberdata) == false) )
					//allRows[i].style.display = "none";
				allRows[i].style.display = "";
			else
				allRows[i].style.display = "";
	}
}

	ShowHideFrameworkImages();
	ShowHideFrameworkSpans();
}

function ShowHideFrameworkImages()
{
	// show/hide img nodes for filtered framework icons
	// get all the <img> nodes in the document
	var allImgs = document.getElementsByTagName("img");

	for(var i = 0; i < allImgs.length; i++)
	{
		var imgdata = allImgs[i].getAttribute("data");
		if (imgdata != null)
		{
			var checkboxId = imgdata + "Checkbox"; 	
			if (docSettings[checkboxId] != "on")
			{
				allImgs[i].style.display = "none";
		}
			else
				allImgs[i].style.display = "";
	}
}
}

function ShowHideFrameworkSpans()
{
	// show/hide img nodes for filtered framework icons
	// get all the <img> nodes in the document
	var allImgs = document.getElementsByTagName("span");

	for(var i = 0; i < allImgs.length; i++)
	{
		var imgdata = allImgs[i].getAttribute("data");
		if (imgdata != null)
		{
			var checkboxId = imgdata + "Checkbox"; 	
			if (docSettings[checkboxId] != "on")
			{
				allImgs[i].style.display = "none";
		}
			else
				allImgs[i].style.display = "";
	}
}
}

function ShowBasedOnVisibility(memberdata)
{
	var isPublic = (memberdata.indexOf("public") != -1);
	var isProtected = (memberdata.indexOf("protected") != -1);
	var isPrivate = (memberdata.indexOf("private") != -1);
	var isExplicitII = (memberdata.indexOf("explicit") != -1);

	// if the public checkbox doesn't exist, default to showPublic == true
	var publicCheck = docSettings["PublicCheckbox"];
	var showPublic = (publicCheck == null) ? true : (publicCheck == "on");

	// if the protected checkbox doesn't exist, default to showProtected == true
	var protectedCheck = docSettings["ProtectedCheckbox"];
	var showProtected = (protectedCheck == null) ? true : (protectedCheck == "on");
  
	if ( (showProtected && isProtected) || (showPublic && isPublic) || isExplicitII || isPrivate)
		return true;

	return false;
}

function ShowBasedOnInheritance(memberdata)
{
	var isInherited = (memberdata.indexOf("inherited") != -1);
	var isDeclared = (memberdata.indexOf("declared") != -1);

	// if the inherited checkbox doesn't exist, default to showInherited == true
	var inheritedCheck = docSettings["InheritedCheckbox"];
	var showInherited = (inheritedCheck == null) ? true : (inheritedCheck == "on");

	// if the declared checkbox doesn't exist, default to showDeclared == true
	var declaredCheck = docSettings["DeclaredCheckbox"];
	var showDeclared = (declaredCheck == null) ? true : (declaredCheck == "on");

	if ( (showInherited && isInherited) || (showDeclared && isDeclared) )
		return true;

	return false;
}

function ShowBasedOnFramework(memberdata)
{
	var isNetfw = (memberdata.indexOf("notNetfw") == -1);
	var isNetcfw = (memberdata.indexOf("netcfw") != -1);
	var isXnafw = (memberdata.indexOf("xnafw") != -1);

	var netfwCheck = docSettings["netfwCheckbox"];
	var netcfwCheck = docSettings["netcfwCheckbox"];
	var xnafwCheck = docSettings["xnafwCheckbox"];

	// if all the checkboxes are null, it means we have no framework filter; so return true to show member by default
	if (netfwCheck == null && netcfwCheck == null && xnafwCheck == null)
		return true;

	var showNetfw = (netfwCheck == "on");
	var showNetcfw = (netcfwCheck == "on");
	var showXnafw = (xnafwCheck == "on");

	if ( (isNetfw && showNetfw) || (isNetcfw && showNetcfw) || (isXnafw && showXnafw) )
		return true;

	return false;
}


function SetDropdownMenuLabel(menu, dropdown)
{ 
	var dropdownLabelId = menu.GetDropdownLabelId();
	dropdown.SetActivatorLabel(dropdownLabelId);
	for (var i = 0; i < dropdowns.length; i++)
	{
		dropdowns[i].reposition();
}
}