var MSIE = false;
var ver = 0;
var indexOfMSIE = navigator.userAgent.indexOf("MSIE"); 
var indexOfTrident = navigator.userAgent.indexOf("Trident");
if(indexOfMSIE != -1)
{
	MSIE = true;
	ver = parseFloat(navigator.userAgent.substring(indexOfMSIE + 5, navigator.userAgent.indexOf(";", indexOfMSIE)));
}
// Internet Explorer, from IE11 onwards will no longer supports the user Agent MSIE.
// Alternative is to query the UA string for "Trident".
// More information at : http://msdn.microsoft.com/en-us/library/ms537503(v=vs.85).aspx
// Trident userAgent mapping:
// Trident/7.0 IE11
// Trident/6.0 Internet Explorer 10
// Trident/5.0 Internet Explorer 9
// Trident/4.0 Internet Explorer 8
else if(indexOfTrident != -1)
{
	MSIE = true;
	// UserAgent Trident can end with a ';' or a ')'
	ver = parseFloat(navigator.userAgent.substring(indexOfTrident + 8, navigator.userAgent.indexOf(";", indexOfTrident)));
	if(ver == NaN)
	{
		ver = parseFloat(navigator.userAgent.substring(indexOfTrident + 8, navigator.userAgent.indexOf(")", indexOfTrident)));
	}
	ver += 4; // version of trident is 4 less to IE version number
}

var slInstalled = false;
try
{
	var b = null; 
	if (MSIE)
	{
		b = new ActiveXObject("AgControl.AgControl");
		slInstalled = true;
	}
	else
	{
		var plugin = navigator.plugins["Silverlight Plug-In"];
		if (plugin)
		{
			var version = plugin.description.split(".")
			if (parseInt(version[0]) >= 2)
				slInstalled = true;
		}
	}
}
catch(e) {}

var isFirefox = navigator.userAgent.indexOf("Firefox") >= 0;
var isMac = (navigator.appVersion.indexOf("Macintosh") >= 0);

var vmlSupported = MSIE;
var slSupported = (MSIE && ver >= 5 && !isMac) || isFirefox;
var isUpLevel = vmlSupported || (slSupported && slInstalled);
var fShowWidgets = (MSIE && ver >= 5 && !isMac) || isFirefox;

var xmlData = XMLData("WirtualnaUczelnia_files/data.xml");

var g_RowStyleList = new  Array(
 "propViewerEvenRow",
 "propViewerOddRow"
);

var strShape	= "Shape Name:";


// START ----- cross-browser event manipulation helpers ---------------------------

function getEvent(event)
{
	// Retrieve the event in IE
	if (!event)
		return window.event;
	// Return the passed event for everything else
	return event;
}

function getSrcElem(event)
{
	var event = getEvent(event);
	
	// Reference the element howeaver this browser can
	var elem;
	if (event.target) // For Firefox
		elem = event.target;
	else if (event.srcElement) // For IE
		elem = event.srcElement;
	if (elem.nodeType == 3) // For Safari
		elem = elem.parentNode;

	
	return elem
}

function GetNSResolver(xml, xpath, xpathEval)
{
	var nsResolver = null;
	try
	{
		// Check for HLURL namespace in xpath
		//
		if (xpath.indexOf("HLURL:") != -1)
		{
			// Build the temp document whose document element binds the prefix HLURL
			var namespaceHolder = document.implementation.createDocument(
									"urn:schemas-microsoft-com:office:visio:dghlinkext",
									"HLURL:namespaceMapping", null);

			// Get the root element of the document and set the namespace
			var root = namespaceHolder.documentElement;
			root.setAttributeNS(
				"http://www.w3.org/2000/xmlns/",
				"xmlns:HLURL", "urn:schemas-microsoft-com:office:visio:dghlinkext");

			// Create the namespace resolver using the root element to do the namespace bindings
			nsResolver = xpathEval.createNSResolver(root);
		}
		else
			nsResolver = xpathEval.createNSResolver(xml.ownerDocument == null ? xml.documentElement : xml.ownerDocument.documentElement);
	}
	catch (e) { }

	return nsResolver;
}

// END ----------------------------------------------------------------------------

// START cross-browser xpath manipulation helpers ---------------------------------
if (document.implementation.hasFeature("XPath", "3.0"))
{
	Element.prototype.selectNodes = function (xpath) {
		var oEvaluator = new XPathEvaluator();
		var nsResolver = GetNSResolver(this, xpath, oEvaluator);
		var oResult = oEvaluator.evaluate(xpath, this, nsResolver, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);    

		var aResult = [];
		for( var i = 0; i < oResult.snapshotLength; i++)
			aResult[i] =  oResult.snapshotItem(i);
		return aResult;
	};
	Document.prototype.selectNodes = function(xpath)
	{
		return this.documentElement.selectNodes(xpath);
	}
}

function SelectSingleNode(xml, xpath)
{
	if (MSIE)
		return xml.selectSingleNode(xpath);
	else
	{
		var xpe = new XPathEvaluator();
		var nsResolver = GetNSResolver(this, xpath, xpe);
		var results = xpe.evaluate(xpath,xml,nsResolver,XPathResult.FIRST_ORDERED_NODE_TYPE, null);
		return results.singleNodeValue;
	}
}

function SelectNodes(xml, xpath)
{
	return xml.selectNodes(xpath);
}
// END ----------------------------------------------------------------------------


function XMLData(file)
{
	var temp = null;
	if(isUpLevel)
	{
		// for IE
		if (MSIE)
		{
			temp = CreateObject("Microsoft.XMLDOM");
			if (temp == null)
				temp = CreateObject("Msxml2.DOMDocument.6.0");
		}
		// for everything else
		else
		{
			try 
			{
				temp = document.implementation.createDocument("", "", null);
			}
			catch(e) {}
		}

		if (temp != null)
		{
			temp.async = false;
		
			temp.load(file);
			if (MSIE && temp.parseError.errorCode != 0)
				temp = null;
		}
	}

	return temp;
}

function CreateObject (strObj)
{
	var obj = null;
	eval ("try { obj = new ActiveXObject(strObj); } catch (e) {}");
	return obj;
}

function doVersion()
{
	if(isUpLevel)
	{
		frmToolbar.divDownLevel.innerHTML = "";
		frmToolbar.divUpLevel.innerHTML = frmWidgets.divData.innerHTML;
	}
}	
	
	
function FindShapeXML (pageID, shapeID)
{
	var shapeObj = null;

	if (xmlData != null)
	{
		var pagesObj = SelectSingleNode(xmlData, "VisioDocument/Pages");
		if(!pagesObj)
		{
			return null;
		}

		var pageQuerryString = './/Page[@ID = "' + pageID + '"]';
		var pageObj = SelectSingleNode(pagesObj, pageQuerryString);
		if(pageObj == null)
		{
			return null;
		}

		var shapeQuerryString = './/Shape[@ID = "' + shapeID + '"]';
		shapeObj = SelectSingleNode(pageObj, shapeQuerryString);
	}

	return shapeObj;
}

function OnShapeKey(pageID, shapeID, event)
{
	var e = event;
	if (MSIE)
		e = window.frmDrawing.event;
	
	if(e.keyCode == 13 && e.ctrlKey)		//ctrl + enter
	{
		UpdateProps (pageID, shapeID);
	}
	else if (e.keyCode == 13)
	{
		OnShapeClick (pageID, shapeID, e);
	}
}

function OnShapeClick (pageID, shapeID, jsEvent, slEvent)	// slEvent - Required for Silverlight only
{
	if (isUpLevel)
	{
		var e = jsEvent;
		if (MSIE)
			e = frmDrawing.window.event;
		if (frmToolbar.widgets && frmToolbar.widgets.Details &&
				((e != null && e.ctrlKey) || (e == null && slEvent.Ctrl)))	// DOM or Silverlight events
		{
			UpdateProps (pageID, shapeID);
		}
		else
		{	
			var shapeNode = FindShapeXML (pageID, shapeID);
			var hlObj = GetHLAction (shapeNode, pageID, shapeID);
			if (hlObj != null)
			{
				if (hlObj.DoFunction.length > 0)
				{
					eval (hlObj.DoFunction);
				}
				else if (hlObj.Hyperlink.length > 0)
				{
					if (hlObj.NewWindow)
					{
						window.open (hlObj.Hyperlink);
					}
					else
					{
						top.location.href = hlObj.Hyperlink.substr (0, 510);
					}
				}
				else if (e != null && getSrcElem(e) != null)
				{
					var elem = e.srcElement;
					var href = elem.origHref;
					if (href == null)
					{
						href = elem.href;
					}

					var target = elem.origTarget;
					if (target == null)
					{
						target = elem.target;
					}

					if (href && href.length > 0)
					{
						href = HTMLEscape (href);
						if (target && target == "_blank")
						{
							window.open (href);
						}
						else
						{
							top.location.href = href.substr (0, 510);
						}
					}
				}
			}
		}
	}

	return (!isUpLevel);
}

function UpdateProps(pageID, shapeID)
{
	var shape = FindShapeXML (pageID, shapeID);

	FillPropPane(shape, frmToolbar.hideDetails);
}

function UpdatePropsByShapeName(pageName, shapeName)
{
	var shape = FindShapeXMLByName (pageName, shapeName);

	FillPropPane(shape, frmToolbar.hideDetails);
}

function FillPropPane (shapeNode, outputDivObj )
{
	if (shapeNode != null && outputDivObj != null)
	{
		if(outputDivObj.style.display == "none")
		{
			frmToolbar.ToggleWidget(outputDivObj);
		}
	
		var strCPHTML = "";
		
		var shapeNameAttr = shapeNode.attributes.getNamedItem ("Name");
		if (shapeNameAttr)
		{
			strCPHTML += "<span class='p2' style='padding-left:2px;'>" + strShape + " " + HTMLEscape(shapeNameAttr.value) + "</span>";
		}

		var strTableHTML = CreatePropTable (shapeNode);
		if(strTableHTML.indexOf("<table") == -1)
		{
			strTableHTML = "<p class='p2' style='margin-left:1em;margin-top:0em;'>" + strTableHTML + "</p>";
		}

		if (strTableHTML.length > 0)
		{
			strCPHTML += strTableHTML;
		}
		else
		{
			strCPHTML = strNoCustomPropertiesToDisplayText;
		}
		
		outputDivObj.innerHTML = strCPHTML;
		outputDivObj.minHeight = 75;
	}
}

function CreatePropTable (shapeNode)
{
	var strCPHTML = "";
	var strStartTable = "<table class='propViewerTABLE' borderColor='#999999' cellPadding='2' width='95%' border='1' summary='This table contains shape details'>";
		strStartTable += "<THEAD class='propViewerTHEAD'><TH>Label</TH><TH>Value</TH></THEAD>";
	var strEndTable = "</TABLE>";

	if (shapeNode != null)
	{
		var propColl = SelectNodes(shapeNode, "Prop");

		var propCount = propColl.length;
		for (var count = 0; count < propCount; count++)
		{
			strCPHTML += "<TR class='" + g_RowStyleList[count % 2] + "'>";
			
			var strLabelText = "";
			oPropLabel = propColl.item(count).selectSingleNode("Label/textnode()");
			if (oPropLabel != null)
			{
				strLabelText = HTMLEscape (oPropLabel.text);
			}
			else
			{
				oPropName = propColl.item(count).attributes.getNamedItem ("Name");
				if (oPropName)
				{
					strLabelText = HTMLEscape (oPropName.text);
				}
			}

			if (strLabelText.length > 0)
			{
				strCPHTML += "<TD class='propViewerTD'>" + strLabelText + "</TD>";
				strCPHTML += "<TD class='propViewerTD'>"

				var strValueText = "&nbsp;";
				oPropValue = propColl.item(count).selectSingleNode("Value/textnode()");
				if (oPropValue)
				{
					strValueText = HTMLEscape (oPropValue.text);
				}

				strCPHTML += strValueText + "</TD></TR>";
			}
		}

		if(strCPHTML != "")
		{
			strCPHTML = strStartTable + strCPHTML + strEndTable;
		}
		else
		{
			strCPHTML = "No Details Available.";
		}
	}

	return strCPHTML;
}

function keyHandler()
{
	var e = frmDrawing.window.event;
	if(e.keyCode == 13) //enter
	{
		e.srcElement.click();
	}
}

function GoToPage(index)
{
	if (viewMgr)
	{
		viewMgr.loadPage (index);
	}
	else
	{
		DefPageLoad (index);
	}
}

function GoToPageByID(pageID)
{
	var pageIndex = PageIndexFromID (pageID);
	if (pageIndex >= 0)
	{
		GoToPage (pageIndex);
	}
}

function PageIndexFromID (pageID)
{
	if (g_FileList != null)
	{
		var entry;

		var count;
		var fileEntry;
		var bFoundEntry = false;
		for (count = 0; 
			 count < g_FileList.length && !bFoundEntry; 
			 count++)
		{
			if (pageID == g_FileList[count].PageID)
			{
				return count;
			}
		}
	}
	return -1;
}

function PageIndexFromName (strPageName)
{
	if (g_FileList != null)
	{
		var entry;

		var strPageNameLower = strPageName;
		strPageNameLower = strPageNameLower.toLowerCase ();

		var count;
		var fileEntry;
		var bFoundEntry = false;
		for (count = 0; 
			 count < g_FileList.length && !bFoundEntry; 
			 count++)
		{
			var strFileListPageName = g_FileList[count].PageName;
			strFileListPageName = HTMLUnescape (strFileListPageName);
			strFileListPageName = strFileListPageName.toLowerCase ();
			if (strPageNameLower == strFileListPageName)
			{
				return count;
			}
		}
	}
	return -1;
}

function PageIndexFromFileName (strFileName)
{
	if (g_FileList != null)
	{
		var entry;

		var strFileNameLower = strFileName;
		strFileNameLower = strFileNameLower.toLowerCase ();

		var count;
		var fileEntry;
		var bFoundEntry = false;
		for (count = 0; 
			 count < g_FileList.length && !bFoundEntry; 
			 count++)
		{
			var strFileListFileName = g_FileList[count].PriImage;
			strFileListFileName = strFileListFileName.toLowerCase ();
			if (strFileNameLower == strFileListFileName)
			{
				return count;
			}

			strFileListFileName = g_FileList[count].SecImage;
			strFileListFileName = strFileListFileName.toLowerCase ();
			if (strFileNameLower == strFileListFileName)
			{
				return count;
			}
		}
	}
	return -1;
}

function PageIndexFromVisioPageIndex (pageIndex)
{
	if (g_FileList != null)
	{
		var entry;

		var count;
		var fileEntry;
		var bFoundEntry = false;
		for (count = 0; 
			 count < g_FileList.length && !bFoundEntry; 
			 count++)
		{
			if (pageIndex == g_FileList[count].PageIndex)
			{
				return count;
			}
		}
	}
	return -1;
}

function FindShapeXMLByName (pageName, shapeName)
{
	var shapeObj = null;

	if (xmlData)
	{
		var pagesObj = SelectSingleNode(xmlData, "VisioDocument/Pages");
		if(!pagesObj)
		{
			return null;
		}
		
		var pageQuerryString = './/Page[@Name $ieq$ "' + EscapeString (pageName) + '"]';
		var pageObj = SelectSingleNode(pagesObj, pageQuerryString);
		if(!pageObj)
		{
			return null;
		}

		var shapeQuerryString = './/Shape[@Name $ieq$ "' + EscapeString (shapeName) + '"]';
		shapeObj = SelectSingleNode(pageObj, shapeQuerryString);
	}

	return shapeObj;
}

function Unquote (str)
{
	var nStartIndex = 0;
	var nEndIndex = str.length;

	if (str.charAt (0) == '"')
	{
		nStartIndex = 1;
	}

	if (str.charAt (nEndIndex - 1) == '"')
	{
		nEndIndex -= 1;
	}

	return str.substring (nStartIndex, nEndIndex);
}

function ConvertXorYCoordinate(PosValue, OldMin, OldMax, NewMin, NewMax, MapBackwards)
{
	var OldMid = (OldMax - OldMin) / 2;
	var NewMid = (NewMax - NewMin) / 2;
	var ConvertResult = 1 * PosValue;
	ConvertResult = ConvertResult - (OldMin + OldMid);
	ConvertResult = ConvertResult / OldMid;
	if(MapBackwards != 0)
	{
		ConvertResult = 0 - ConvertResult;
	}
	ConvertResult = ConvertResult * NewMid;
	ConvertResult = ConvertResult + (NewMin + NewMid);
	return ConvertResult;
}

function showObject( divObject, divID ) 
{
	if( divObject == null )
		divObject = getObj( divID );
	
	if( divObject != null ) 
	{
		divObject.style.display = "";
		divObject.style.visibility = "visible"
	}
	return divObject;
}

function hideObject( divObject, divID ) 
{
	if( divObject == null )
		divObject = getObj( divID );
	
	if( divObject != null ) 
	{
		divObject.style.visibility = "hidden";
		divObject.style.display = "none";
	}
	return divObject;
}

function EscapeString (str)
{
	var strResult = "";

	for (var i = 0 ; i < str.length ; i++)
	{
		var curChar = str.charAt(i);
		if (curChar == '\\')
		{
			strResult += "\\\\";
		}
		else if (curChar == "\"")
		{
			strResult += "\\\"";
		}
		else if (curChar == "\'")
		{
			strResult += "\\\'";
		}
		else
		{
			strResult += curChar;
		}
	}

	return strResult;
}

function HTMLEscape (str)
{
	var strResult = "";

	for (var i = 0 ; i < str.length ; i++)
	{
		var curChar = str.charAt(i);
		if (curChar == '\\')
		{
			strResult += "&#92;";
		}
		else if (curChar == '\"')
		{
			strResult += "&#34;";
		}
		else if (curChar == '\'')
		{
			strResult += "&#39;";
		}
		else if (curChar == '<')
		{
			strResult += "&#60;";
		}
		else if (curChar == '<')
		{
			strResult += "&#62;";
		}
		else if (curChar == '&')
		{
			strResult += "&#38;";
		}
		else
		{
			strResult += curChar;
		}
	}

	return strResult;
}

function HTMLUnescape (str)
{
	var strResult = "";
	var strEscapePattern = "&#xx;";

	for (var i = 0 ; i < str.length - strEscapePattern.length + 1; i++)
	{
		if (str.charAt(i) == '&' && 
			str.charAt(i + 1) == '#' &&
			str.charAt(i + 4) == ';')
		{
			var charCode = str.charAt(i + 2);
			charCode += str.charAt(i + 3);

			if (charCode == "34")
			{
				strResult += '"';
			}
			else if (charCode == "39")
			{
				strResult += '\'';
			}
			else if (charCode == "60")
			{
				strResult += '<';
			}
			else if (charCode == "62")
			{
				strResult += '>';
			}
			else if (charCode == "92")
			{
				strResult += '\\';
			}
			else if (charCode == "38")
			{
				strResult += '&';
			}
			
			i = i + strEscapePattern.length - 1;
		}
		else
		{
			strResult += str.charAt(i);
		}
	}

	strResult += str.substring (i, str.length);

	return strResult;
}