--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/wmlengine/src/css/include/CSSPatternMatcher.h Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,256 @@
+/*
+* Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: Matches CSS patterns
+*
+*/
+
+
+#ifndef CCSSPatternMatcher_H
+#define CCSSPatternMatcher_H
+
+// INCLUDES
+#include "CSSParser.h"
+#include "CSSSelector.h"
+#include "nw_dom_element.h"
+#include "nw_wbxml_dictionary.h"
+#include "nw_evt_event.h"
+#include "nw_hed_documentnode.h"
+#include "nw_hed_domhelper.h"
+
+#include <e32base.h>
+
+// CONSTANTS
+
+// MACROS
+
+// DATA TYPES
+
+// FORWARD DECLARATIONS
+
+// CLASS DECLARATION
+
+/**
+* This class contains information about the node
+* @lib css.lib
+* @since 2.1
+*/
+class CCSSNodeData : public CBase
+{
+public:
+ // class Value of node
+ NW_Ucs2* classVal;
+ // idValue of node
+ NW_Ucs2* idVal;
+ // if node is link
+ TBool isLink;
+ // if associated url os visited
+ TBool isVisited;
+ // if url is cached
+ TBool isCached;
+ // associated url;
+ NW_Text_t* elementUrl;
+
+ // constructor
+ CCSSNodeData()
+ {
+ classVal = NULL;
+ idVal = NULL;
+ elementUrl = NULL;
+ isCached = EFalse;
+ isLink = EFalse;
+ isVisited = EFalse;
+ }
+ // destructor
+ virtual ~CCSSNodeData()
+ {
+ if (classVal)
+ {
+ NW_Mem_Free(classVal);
+ }
+ if (idVal)
+ {
+ NW_Mem_Free(idVal);
+ }
+ if (elementUrl)
+ {
+ NW_Object_Delete(elementUrl);
+ }
+ }
+
+};
+
+// CLASS DECLARATION
+
+/**
+* This class matches patterns
+*
+* @lib css.lib
+* @since 2.1
+*/
+class CCSSPatternMatcher : public CBase
+{
+ public: // Constructors and destructor
+
+ /**
+ * Destructor.
+ */
+ virtual ~CCSSPatternMatcher(){};
+
+ CCSSPatternMatcher(NW_WBXML_Dictionary_t* aDictionary,
+ NW_HED_DocumentNode_t* aOwner,
+ NW_HED_DomHelper_t* aDomHelper)
+ {
+ iDictionary = aDictionary;
+ iOwner = aOwner;
+ iDomHelper = aDomHelper;
+ }
+
+
+ public: // New functions
+
+ /**
+ * This function matches selector pattern to element node using lazy parsing
+ * @since 2.1
+ * @param aElementNode: element node for which pattern needs to be matched
+ * @param aParser: parser initialized to beginning of selector
+ * @param aSelector: selector to be matched
+ * @param aEvent: event
+ * @param aNodeData: node specific data containing class, id information
+ * @return NW_FALSE if pattern not matched or NW_TRUE if pattern matches
+ */
+ TBool MatchPatternLazyL(NW_DOM_ElementNode_t* aElementNode,
+ TCSSParser* aParser,
+ NW_Byte* aSelector,
+ const NW_Evt_Event_t* aEvent,
+ CCSSNodeData* aNodeData);
+ /**
+ * This function matches selector pattern to element node
+ * @since 2.1
+ * @param aElementNode: element node for which pattern needs to be matched
+ * @param aParser: parser initialized to beginning of selector
+ * @param aSelector: selector to be matched
+ * @param aEvent: event
+ * @param aNodeData: node specific data containing class, id information
+ * @return NW_FALSE if pattern not matched or NW_TRUE if pattern matches
+ */
+ TBool MatchPatternL(NW_DOM_ElementNode_t* aElementNode,
+ CCSSSelector* aSelector,
+ const NW_Evt_Event_t* aEvent,
+ CCSSNodeData* aNodeData);
+
+ private: // New functions
+
+ // data associated with a simple selector
+ struct TSimpleSelectorData
+ {
+ TCSSReaderUnit nameSpace;
+ TUint16 elementToken;
+ TText8* conditionListHandle;
+ TUint16 simpleSelectorNum;
+ };
+
+ /**
+ * This function matches selector pattern to element node
+ * using lazy parsing
+ * @since 2.1
+ * @param aElementNode: element node for which pattern needs to be matched
+ * @param aParser: parser initialized to beginning of selector
+ * @param aEvent: event
+ * @param aNodeData: node specific data containing class, id information
+ * @param aConditionListHandle pointer to beginning of conditions
+ * @return NW_FALSE if conditions not matched or NW_TRUE if conditions matches
+ */
+ TBool MatchConditionLazyL(NW_DOM_ElementNode_t* aElementNode,
+ NW_Byte* aConditionListHandle,
+ TCSSParser* aParser,
+ const NW_Evt_Event_t* aEvent,
+ CCSSNodeData* aNodeData);
+
+ /**
+ * This function matches selector pattern to element node
+ * @since 2.1
+ * @param aElementNode: element node for which pattern needs to be matched
+ * @param aParser: parser initialized to beginning of selector
+ * @param aEvent: event
+ * @param aNodeData: node specific data containing class, id information
+ * @param aConditionList: list of conditions
+ * @return NW_FALSE if conditions not matched or NW_TRUE if conditions matches
+ */
+ TBool MatchConditionL(NW_DOM_ElementNode_t* aElementNode,
+ CCSSConditionList* aConditionList,
+ const NW_Evt_Event_t* aEvent,
+ CCSSNodeData* aNodeData);
+
+ /**
+ * This function gets the data associated with a simple selector (iterator method)
+ * @since 2.1
+ * @param aParser: parser to parse selector
+ * @param aSelector: selector to be matched
+ * @param aEvent: event
+ * @param aNodeData(OUT): node specific data containing class, id information
+ * @return KBrsrIterateDone (if all simple selectors are parsed)
+ * KBrsrIterateMore (if more simple selectors need to be parsed)
+ */
+ TBrowserStatusCode GetNextSimpleSelectorL(TCSSParser* aParser,
+ NW_Byte* aSelector,
+ TSimpleSelectorData& aData);
+
+
+ /**
+ * This function matches selector pattern to element node
+ * @since 2.1
+ * @param aElementNode: element node whose url is to be matched
+ * @return url associated with href
+ */
+ NW_Text_t* GetElementURLL(NW_DOM_ElementNode_t* aElementNode);
+
+ /**
+ * This function returns true if url is in history stack
+ * @since 2.1
+ * @param aElementNode: element node whose url is to be searched
+ * @return true (if url is in history stack), otherwise false
+ */
+ TBool UrlInHistory(NW_DOM_ElementNode_t* aElementNode);
+
+ /**
+ * This function returns true if url is in cache
+ * @since 2.1
+ * @param aElementNode: element node whose url is to be searched
+ * @return true (if url is in cache), otherwise false
+ */
+ TBool UrlInCache(NW_DOM_ElementNode_t* aElementNode);
+
+ /**
+ * This function returns true if url is in cache
+ * @since 2.1
+ * @param aParser: parser to parse selector
+ * @param aSelector: selector to be matched
+ * @param aData: simpleselector data
+ * @return KBrsrSuccess or KBrsrFailure
+ */
+ TBrowserStatusCode InitSimpleSelectorData(TCSSParser* aParser, NW_Byte* aSelector, TSimpleSelectorData& aData);
+
+ private: // Data
+
+ // dictionary for document
+ NW_WBXML_Dictionary_t* iDictionary;
+
+ // document
+ NW_HED_DocumentNode_t* iOwner;
+
+ // domHelper for resolving entities
+ NW_HED_DomHelper_t* iDomHelper;
+};
+
+#endif /* CCSSPatternMatcher_H */