CSS_NULL = 0; 
CSS_FIRST = CSS_NULL;
CSS_USER = 1;
CSS_UNIVERSAL = 2;
CSS_TYPE = 3;
CSS_DYNAMIC_PSEUDO = 4;
CSS_ID = 5;
CSS_DESCENDANT = 6;
CSS_CHILD = 7;
CSS_GROUP = 8;

AS_NULL = 0;
AS_EXIST = 1;
AS_EQUAL = 2;

HAS_NS = 0x00000001;
HAS_ID = 0x00000010;
HAS_CLASS = 0x00000100;

var g_childList = new Array();
var g_objStyleSheet = new XFormsStyleSheet();

/**
 * Stylesheet 
 * 
 * @author 김지환
 */
function XFormsStyleSheet ()
{
	this.m_arCSSNode = new Array();
};

XFormsStyleSheet.prototype.push = function (objCSSNode)
{
	this.m_arCSSNode.push(objCSSNode);
};

XFormsStyleSheet.prototype.getNode = function (nIndex)
{
	return this.m_arCSSNode[nIndex];
};

XFormsStyleSheet.prototype.getLength = function ()
{
	return this.m_arCSSNode.length;
};

XFormsStyleSheet.prototype.applyCSS = function (objElement)
{
	var htCssData = null;
	
	var strID = objElement.getId();
	
	var nLength = this.getLength();
	for (var i=0; i<nLength; i++)
	{
		var objCSSNode = this.m_arCSSNode[i];
		
		if (objCSSNode.match(objElement))
		{
			var bMatch = true;
			if (null != objCSSNode.getNext())
			{
				var objCurrent = objCSSNode.getNext();
				
				var objCurrentElement = objElement;
				while (null != objCurrent)
				{
					if (CSS_CHILD == objCurrent.getLink())
					{
						objCurrentElement = this.matchChild(objCurrent, objCurrentElement);
					}
					else if (CSS_DESCENDANT == objCurrent.getLink())
					{
						objCurrentElement = this.matchDescendant(objCurrent, objCurrentElement);
					}
					
					if (null == objCurrentElement)
					{
						bMatch = false;
						break;
					}
					
					objCurrent = objCurrent.getNext();
				}
			}
			
			// Stylesheet 적용
			if (bMatch)
			{
				if (null == htCssData)
				{
					htCssData = new Hashtable();
				}
				
				var strPseudo = objCSSNode.getPseudo();
				var htAttribute = objCSSNode.getAttribute();
				
				if (null != htAttribute)
				{
					for (var strKey in htAttribute)
					{
						var bImportant = false;
						var strValue = htAttribute[strKey];
						
						if (null != strKey && 0 < strKey.length && '#' == strKey.charAt(0))
						{
							bImportant = true;
							strKey = strKey.substr(1);
						}
						
						// Pseudo 
						if (null != strPseudo && 0 < strPseudo.length)
						{
							if ("hover" == strPseudo)
							{
								objElement.setHoverAttribute(strKey, strValue);
							}
							else if ("down" == strPseudo)
							{
								objElement.setDownAttribute(strKey, strValue);
							}
							else if ("focus" == strPseudo)
							{
								objElement.setFocusAttribute(strKey, strValue);
							}
							else if ("disable" == strPseudo)
							{
								objElement.setDisableAttribute(strKey, strValue);
							}
							else if ("fixed" == strPseudo)
							{
								if (objElement instanceof XFormsDataGrid)
								{
									objElement.setFixedAttribute(strKey, strValue);
								}
							}
							else if ("data" == strPseudo)
							{
								if (objElement instanceof XFormsDataGrid)
								{
									objElement.setDataAttribute(strKey, strValue);
								}
							}
						}
						else if (0 == strKey.indexOf("select."))
						{
							objElement.setSelectAttribute(strKey.substr("select.".length), strValue);
						}
						else
						{
							if (bImportant)
							{
								htCssData[strKey] = strValue;
							}
							else
							{
								if (objElement.isCSSValid(strKey))
								{
									htCssData[strKey] = strValue;
								}
							}
						}
					}
				}
			}
		}
	}
	
	if (null != htCssData)
	{
		for (var strKey in htCssData)
		{
			objElement.setAttribute(strKey, htCssData[strKey]);
		}
	}
};

/**
 * 부모가 일치하는지 찾는다.
 * @param objCSSNode
 * @param objElement
 * @return
 */
XFormsStyleSheet.prototype.matchChild = function (objCSSNode, objElement)
{
	var objParent = objElement.getParent();
	
	if (null != objParent && objCSSNode.match(objParent))
	{
		return objParent;
	}
	
	return null;
};

/**
 * 조상중에서 일치하는 조상을 찾는다.
 * @param objCSSNode
 * @param objElement
 * @return
 */
XFormsStyleSheet.prototype.matchDescendant = function (objCSSNode, objElement)
{
	var objParent = objElement.getParent();
	
	while (null != objParent)
	{
		if (objCSSNode.match(objParent))
		{
			return objParent;
		}
		
		objParent = objParent.getParent();
	}
	
	return null;
};

XFormsStyleSheet.addNode = function (objCSSNode)
{
	g_objStyleSheet.push(objCSSNode);
};

XFormsStyleSheet.addNodeForChild = function (objCSSNode)
{
	g_childList.push(objCSSNode);
};

XFormsStyleSheet.flushChild = function ()
{
	if (0 < g_childList.length)
	{
		var objCurrent = null;
		
		for (var i=g_childList.length-1; i>=0; i--)
		{
			var objCSSNode = g_childList[i];
			
			if (null == objCurrent)
			{
				g_objStyleSheet.push(objCSSNode);
			}
			else
			{
				objCurrent.setNext(objCSSNode);
			}
			
			objCurrent = objCSSNode;
		}
		g_childList.removeAll();
	}
};

/**
 * CSS 의 구문
 */
function CSSNode (strName, nLink, strPseudo, htAttribute, bHasAs, nAsOperator, strAsName, strAsValue)
{
	if (null == strName)
	{
		return;
	}
	
	// 구문의 이름 id, type, class, universial의 값이 될 수 있다.
	this.m_strName = strName;
	// CSSNode 연결 타입
	this.m_nLink = nLink;
	// 의사코드 이벤트 hover, down, focus, disable, fixed, data 등
	this.m_strPseudo = strPseudo;
	// 스타일 데이터
	this.m_htAttribute = htAttribute;
	
	// Attribute Selector 구문의 이름으로 매치가 되더라도 추가적으로 해당 엘리먼트의 어트리부트를 지정해서 해당하는 엘리먼트만 적용할때 쓰인다.
	this.m_bHasAs = bHasAs;
	this.m_nAsOperator = nAsOperator;
	this.m_strAsName = strAsName;
	this.m_strAsValue = strAsValue;
	
	// 같은 CSS 구문안에 위치한 다음 노드 (부모 노드에 대한 정보)
	this.m_objNext = null;
};

CSSNode.prototype.getPseudo = function ()
{
	return this.m_strPseudo;
};

CSSNode.prototype.getLink = function ()
{
	return this.m_nLink;
};

CSSNode.prototype.getAttribute = function ()
{
	return this.m_htAttribute;
};

CSSNode.prototype.getNext = function ()
{
	return this.m_objNext;
};

CSSNode.prototype.setNext = function (objCSSNode)
{
	this.m_objNext = objCSSNode;
};

CSSNode.prototype.match = function (objElement)
{
	if (!this.onMatch(objElement))
	{
		return false;
	}
	
	// Attribute Selector
	if (this.m_bHasAs)
	{
		if (AS_EQUAL == this.m_nAsOperator)
		{
			var strAttributeValue = objElement.getAttribute(this.m_strAsName);
			
			if (this.m_strAsValue != strAttributeValue)
			{
				return false;
			}
		}
		else if (AS_EXIST == this.m_nAsOperator)
		{
			var strAttributeValue = objElement.getAttribute(this.m_strAsName);
			if (null == strAttributeValue)
			{
				return false;
			}
		}
	}
	
	return true;
};

/**
 * CSS의 대상이 class 에 의해 적용되는 CSS 구문
 */
CSSNodeUser.prototype = new CSSNode;
function CSSNodeUser (strName, nLink, strPseudo, htAttribute, bHasAs, nAsOperator, strAsName, strAsValue)
{
	if (null == strName)
	{
		return;
	}
	
	CSSNode.call(this, strName, nLink, strPseudo, htAttribute, bHasAs, nAsOperator, strAsName, strAsValue);
};

CSSNodeUser.prototype.onMatch = function (objElement)
{
	return (null != objElement.getClass && objElement.getClass() == this.m_strName);
};

/**
 * CSS의 대상이 id 에 의해 적용되는 CSS 구문
 */
CSSNodeID.prototype = new CSSNode;
function CSSNodeID (strName, nLink, strPseudo, htAttribute, bHasAs, nAsOperator, strAsName, strAsValue)
{
	if (null == strName)
	{
		return;
	}
	
	CSSNode.call(this, strName, nLink, strPseudo, htAttribute, bHasAs, nAsOperator, strAsName, strAsValue);
};

CSSNodeID.prototype.onMatch = function (objElement)
{
	var strId = objElement.getId();
	
	if (CSS_CHILD == this.m_nLink || CSS_DESCENDANT == this.m_nLink)
	{
		var nIndex = strId.lastIndexOf(".");
		if (-1 < nIndex)
		{
			strId = strId.substr(nIndex + 1);
		}
	}
	
	return (strId == this.m_strName);
};

/**
 * CSS의 대상이 type 에 의해 적용되는 CSS 구문
 */
CSSNodeType.prototype = new CSSNode;
function CSSNodeType (strName, nLink, strPseudo, htAttribute, bHasAs, nAsOperator, strAsName, strAsValue)
{
	if (null == strName)
	{
		return;
	}
	
	this.m_dwFlag = 0;
	this.m_strClass = "";
	this.m_strType = "";
	this.m_strId = "";
	
	// Class 와 함께인 Type
	var nIndex = strName.indexOf(".");
	if (-1 != nIndex)
	{
		this.m_strClass = strName.substr(nIndex + 1);
		this.m_dwFlag |= HAS_CLASS;
		
		strName = strName.substring(0, nIndex);
	}
	
	// ID 와 함께인 Type
	nIndex = strName.indexOf("#");
	if (-1 != nIndex)
	{
		this.m_strId = strName.substr(nIndex + 1);
		this.m_dwFlag |= HAS_ID;
		
		strName = strName.substring(0, nIndex);
	}
	
	// namespace
	this.m_dwFlag |= (strName.indexOf("|") != -1 ? HAS_NS : 0);
	strName.replace("|", ":");
	
	this.m_strType = strName;
	
	CSSNode.call(this, strName, nLink, strPseudo, htAttribute, bHasAs, nAsOperator, strAsName, strAsValue);
};

CSSNodeType.prototype.onMatch  = function (objElement)
{
	if (this.m_dwFlag & HAS_ID)
	{
		var strId = objElement.getId();
		if (CSS_CHILD == this.getLink())
		{
			var nIndex = strId.lastIndexOf(".");
			if (-1 < nIndex)
			{
				strId = strId.substr(nIndex + 1);
			}
		}
		return (strId == this.m_strName);
	}
	
	if (this.m_dwFlag & HAS_CLASS)
	{
		if ("html" != objElement.id)
		{
			var strClass = objElement.getClass();
			if (this.m_strClass != strClass)
			{
				return false;
			}
		}
		else
		{
			return false;
		}	
	}
	
	return (this.m_dwFlag & HAS_NS) ? objElement.getTag() == this.m_strType : objElement.getLocalTag() == this.m_strType;
};

/**
 * CSS의 대상이 전체인 CSS 구문 (*)
 */
CSSNodeUniversal.prototype = new CSSNodeType;
function CSSNodeUniversal (strName, nLink, strPseudo, htAttribute, bHasAs, nAsOperator, strAsName, strAsValue)
{
	if (null == strName)
	{
		return;
	}
	
	CSSNodeType.call(this, strName, nLink, strPseudo, htAttribute, bHasAs, nAsOperator, strAsName, strAsValue);
};

CSSNodeUniversal.prototype.onMatch = function (objElement)
{
	if (this.m_dwFlag & HAS_ID)
	{
		if (this.m_strId != objElement.getId())
		{
			return false;
		}
	}
	
	if (this.m_dwFlag & HAS_CLASS)
	{
		if (this.m_strClass != objElement.getClass())
		{
			return false;
		}
	}
	
	return true;
};