homescreenpluginsrv/inc/hspsdomdocument.h
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     1 /*
       
     2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  Represents the entire xmluiml specific xml and css data. 
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 
       
    20 #ifndef hsps_DOM_DOCUMENT_H
       
    21 #define hsps_DOM_DOCUMENT_H
       
    22 
       
    23 //  INCLUDES
       
    24 #include <e32base.h>
       
    25 #include <s32strm.h>
       
    26 
       
    27 
       
    28 //FORWARD DECLARATIONS
       
    29 class ChspsDomStringPool;
       
    30 class ChspsDomNode;
       
    31 // CLASS DECLARATION
       
    32 
       
    33 /**
       
    34  * Provides the primary access to the document's data.
       
    35  *  
       
    36  * @lib hspsdomdocument.lib
       
    37  * @since S60 5.0
       
    38  * @ingroup group_hspsdom
       
    39 */
       
    40 class ChspsDomDocument: public CBase
       
    41     {
       
    42     public:  // Constructors and destructor
       
    43         
       
    44         /**
       
    45         * Two-phased constructor.
       
    46         * 
       
    47         * @since S60 5.0
       
    48         */
       
    49         IMPORT_C static ChspsDomDocument* NewL();
       
    50         
       
    51         /**
       
    52         * Two-phased stream constructor.
       
    53         * 
       
    54         * @since S60 5.0
       
    55         * @param aStream Source stream.
       
    56         */
       
    57         IMPORT_C static ChspsDomDocument* NewL( RReadStream& aStream );
       
    58         
       
    59         /**
       
    60         * Construct ChspsDomDocument from streamed HBufC8.
       
    61         * 
       
    62         * @since S60 5.0
       
    63         * @param aBufStream Source buffer stream.
       
    64         */
       
    65         IMPORT_C static ChspsDomDocument* NewL( const HBufC8* aBufStream );
       
    66         
       
    67         /**
       
    68         * Destructor.
       
    69         */
       
    70         IMPORT_C virtual ~ChspsDomDocument();
       
    71 
       
    72     public: // New functions
       
    73         /**
       
    74         * Makes a clone of this document.
       
    75         * 
       
    76         * @since S60 5.0
       
    77         * @return Pointer to a document. Caller has the ownership.
       
    78         */
       
    79         IMPORT_C ChspsDomDocument* CloneL();
       
    80         
       
    81         /**
       
    82         * Factory method to create node elements, because elements cannot exist outside 
       
    83         * the context of a document.
       
    84         * 
       
    85         * @since S60 5.0
       
    86         * @param aName UTF-8 encoded Element name.
       
    87         * @param aNamespace UTF-8 encoded Element namespace.
       
    88         * @return A new ChspsDomNode type instance. Ownership is transferred to caller. 
       
    89         */
       
    90         IMPORT_C ChspsDomNode* CreateElementNSL( const TDesC8& aName, const TDesC8& aNamespace );
       
    91         
       
    92         /**
       
    93         * Set the root of the document tree. Root node provides primary access to 
       
    94         * document data. This class owns root node.
       
    95         * 
       
    96         * @since S60 5.0
       
    97         * @param aRootNode Documents's root node. Document takes ownership.
       
    98         */
       
    99         IMPORT_C void SetRootNode( ChspsDomNode* aRootNode );
       
   100 
       
   101         /**
       
   102         * Get the root node of the document.
       
   103         * 
       
   104         * @since S60 5.0
       
   105         * @return Pointer to ChspsDomNode type node.
       
   106         */
       
   107         IMPORT_C ChspsDomNode* RootNode() const;
       
   108 
       
   109         /**
       
   110         * Get the last node of the document.
       
   111         * 
       
   112         * @since S60 5.0
       
   113         * @return Pointer to ChspsDomNode type node.
       
   114         */
       
   115         IMPORT_C ChspsDomNode* LastNode() const;
       
   116 
       
   117         /**
       
   118         * Get the size of the document's data. 
       
   119         * 
       
   120         * @since S60 5.0
       
   121         * @return Document's data size.
       
   122         */
       
   123         IMPORT_C TInt Size() const;
       
   124         
       
   125         /**
       
   126         * Get document node count.
       
   127         * 
       
   128         * @since S60 5.0
       
   129         * @return Count of all nodes in a document.
       
   130         */
       
   131         IMPORT_C TInt DomNodeCount() const;
       
   132         
       
   133         /**
       
   134         * Externalize document's data.
       
   135         * 
       
   136         * @since S60 5.0
       
   137         * @param aStream Output stream.
       
   138         */
       
   139         IMPORT_C void ExternalizeL( RWriteStream& aStream ) const;
       
   140         
       
   141         /**
       
   142         * Internalize document's data.
       
   143         * 
       
   144         * @since S60 5.0
       
   145         * @param aStream Input stream.
       
   146         */
       
   147         IMPORT_C void InternalizeL( RReadStream& aStream );
       
   148 
       
   149         /**
       
   150         * Returns document's data as a streamed buffer.
       
   151         * 
       
   152         * @since S60 5.0
       
   153         * @return Pointer to a new HBufC8 buffer which holds streamed document. 
       
   154         * Ownership is transferred to a caller.
       
   155         */
       
   156         IMPORT_C HBufC8* MarshallL();
       
   157         
       
   158         /**
       
   159         * Get reference to string pool.
       
   160         * 
       
   161         * @since S60 5.0
       
   162         * @return Reference to string pool implementation.
       
   163         */
       
   164         IMPORT_C ChspsDomStringPool& StringPool() const;
       
   165     private:
       
   166 
       
   167         /**
       
   168         * C++ default constructor.
       
   169         */
       
   170         ChspsDomDocument();
       
   171 
       
   172         /**
       
   173         * By default Symbian 2nd phase constructor is private.
       
   174         */
       
   175         void ConstructL();
       
   176 
       
   177     private:    // Data
       
   178         //Document owns the root node.
       
   179         ChspsDomNode*         iRootNode;
       
   180         
       
   181         //Namespace map stores namespaces used in dom
       
   182         ChspsDomStringPool*   iDomStringPool;
       
   183         
       
   184         
       
   185     };
       
   186 
       
   187 #endif      // hsps_DOM_DOCUMENT_H  
       
   188             
       
   189 // End of File