diff -r 000000000000 -r dd21522fd290 webengine/wmlengine/src/xhtml/include/XhtmlTableElementHandler.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/webengine/wmlengine/src/xhtml/include/XhtmlTableElementHandler.h Mon Mar 30 12:54:55 2009 +0300 @@ -0,0 +1,173 @@ +/* +* 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: Handles table elements in XHTML documents. +* +*/ + + + +#ifndef CXHTMLTABLEELEMENTHANDLER__H +#define CXHTMLTABLEELEMENTHANDLER__H + +// INCLUDES +#include +#include + +#include "nwx_defs.h" +#include "nw_dom_node.h" + + +// CONSTANTS + +// MACROS + +// DATA TYPES + +// FUNCTION PROTOTYPES + +// FORWARD DECLARATIONS +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +typedef struct NW_XHTML_ContentHandler_s NW_XHTML_ContentHandler_t; +typedef struct NW_XHTML_ElementHandler_s NW_XHTML_ElementHandler_t; +typedef struct NW_LMgr_Box_s NW_LMgr_Box_t; +typedef struct NW_LMgr_RootBox_s NW_LMgr_RootBox_t; +typedef struct NW_LMgr_ContainerBox_s NW_LMgr_ContainerBox_t; + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +// CLASS DECLARATION + +// TODO: This class should be derived from CElementHandler once the browser is +// converted to c++. + +class CXHTMLTableElementHandler : public CBase + { + public: // Constructors and destructor + /** + * Two-phased constructor. + */ + static CXHTMLTableElementHandler* NewL(const NW_XHTML_ElementHandler_t* aElementHandler, + NW_XHTML_ContentHandler_t* aContentHandler, NW_DOM_ElementNode_t* aElementNode); + + /** + * Destructor. + */ + virtual ~CXHTMLTableElementHandler(); + + + public: // New Methods + /** + * Initializes the ElementHandler. + * + * @return status code + */ + virtual TBrowserStatusCode Initialize(void); + + /** + * Creates the box-tree associated with the tag. + * + * @param aParentBox the parent to attach the new box-tree to. + * @return status code + */ + virtual TBrowserStatusCode CreateBoxTree(NW_LMgr_ContainerBox_t& aParentBox); + + /** + * Returns whether or not grid mode applies to this table. + * + * @return ETrue or EFalse. + */ + TBool DoesGridModeApply(void); + + + private: // Private Methods + /** + * C++ default constructor. + */ + CXHTMLTableElementHandler(const NW_XHTML_ElementHandler_t* aElementHandler, + NW_XHTML_ContentHandler_t* aContentHandler, NW_DOM_ElementNode_t* aElementNode); + + /** + * By default Symbian 2nd phase constructor is private. + */ + void ConstructL(void); + + /** + * A simple helper method to create the box-tree. + * + * @param aElementNode the table's element node. + * @param aTableBox the table's box. + * @param aTableContainerParent the table's parent's box. + * + * @return status code + */ + TBrowserStatusCode CreateSubTree(NW_DOM_ElementNode_t* aElementNode, + NW_LMgr_Box_t* aTableBox, NW_LMgr_ContainerBox_t* aTableContainerParent); + + /** + * A simple helper method to create the box-tree. + * + * @param aElementHandler the table's element handler. + * @param aElementNode the table's element node. + * @param aTableBox the table's box. + * @param aTableContainerParent the table's parent's box. + * + * @return status code + */ + TBrowserStatusCode CreateSubTreeHelper(const NW_XHTML_ElementHandler_t* aElementHandler, + NW_DOM_ElementNode_t* aElementNode, NW_LMgr_Box_t* aTableBox, + NW_LMgr_ContainerBox_t* aTableContainerParent); + + /** + * Returns true if the parent has only one element, ignoring text nodes that + * only contain whitespace. + * + * @return true or false. + */ + NW_Bool HasOnlyOneElementChild(NW_DOM_Node_t* aParentNode); + + /** + * This method is called each time a table chunk arrives. It is used + * to determine whether or not that table should be laid out in grid mode. + * + * @return status code + */ + TBrowserStatusCode PreEvalTable(); + + /** + * This method is called after all of the chunks of a table arrive. It is used + * to determine whether or not that table should be laid out in grid mode. + * + * @return status code + */ + TBrowserStatusCode PostEvalTable(); + + + private: // Data + const NW_XHTML_ElementHandler_t* iElementHandler; + NW_XHTML_ContentHandler_t* iContentHandler; + NW_DOM_ElementNode_t* iElementNode; + NW_LMgr_RootBox_t* iRootBox; + NW_Float32 iScreenWidth; + + TInt8 iIsGridMode; + NW_DOM_Node_t* iLastEvaluatedElement; + TInt32 iNumberOfElements; + }; + +#endif // CXHTMLTABLEELEMENTHANDLER__H