--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/xml/xmldomandxpath/src/xmlengineserializer/xmlengdomcontenthandler.cpp Thu Dec 17 09:29:21 2009 +0200
@@ -0,0 +1,366 @@
+// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "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:
+// Content handler implementation
+//
+
+#include <xml/parser.h>
+#include <xml/documentparameters.h>
+#include <xml/dom/xmlengdom.h>
+#include <xml/dom/xmlengdocument.h>
+#include "xmlengdomdefs.h"
+#include <xml/dom/xmlengbinarycontainer.h>
+#include <stdapis/libxml2/libxml2_globals.h> //xmlFree
+#include <xml/utils/xmlengxestd.h>
+#include "xmlengdomcontenthandler.h"
+
+xmlChar* xmlCharFromDesC8L(const TDesC8& aDesc)
+ {
+ if(!aDesc.Length())
+ {
+ return NULL;
+ }
+ xmlChar* newContent = (xmlChar*)new(ELeave) TUint8[aDesc.Length() + 1];
+ *(Mem::Copy((TAny*)newContent, aDesc.Ptr(), aDesc.Length())) = 0;
+ return newContent;
+ }
+
+CXmlEngDOMContentHandler* CXmlEngDOMContentHandler::NewL(RXmlEngDocument& aDoc)
+ {
+ CXmlEngDOMContentHandler* self = new (ELeave) CXmlEngDOMContentHandler(aDoc);
+ return self;
+ }
+
+CXmlEngDOMContentHandler::~CXmlEngDOMContentHandler()
+ {
+ }
+
+CXmlEngDOMContentHandler::CXmlEngDOMContentHandler(RXmlEngDocument& aDoc):
+iDoc(aDoc)
+ {
+ iLastElement = iDoc;
+ iTmpElement = TXmlEngElement();
+ }
+
+/**
+This method is a callback to indicate the start of the document.
+@param aDocParam Specifies the various parameters of the document.
+@param aDocParam.iCharacterSetName The character encoding of the document.
+@param aErrorCode is the error code.
+ If this is not KErrNone then special action may be required.
+*/
+void CXmlEngDOMContentHandler::OnStartDocumentL(const RDocumentParameters& aDocParam, TInt aErrorCode)
+ {
+ if(aErrorCode)
+ {
+ return;
+ }
+
+ INTERNAL_DOCPTR(iDoc)->encoding = xmlCharFromDesC8L(aDocParam.CharacterSetName().DesC());
+ iTmpElement = iDoc.CreateDocumentElementL(_L8("fake"));
+ }
+
+
+/**
+This method is a callback to indicate the end of the document.
+@param aErrorCode is the error code.
+ If this is not KErrNone then special action may be required.
+*/
+void CXmlEngDOMContentHandler::OnEndDocumentL(TInt /*aErrorCode*/)
+ {
+ }
+
+
+/**
+This method is a callback to indicate an element has been parsed.
+@param aElement is a handle to the element's details.
+@param aAttributes contains the attributes for the element.
+@param aErrorCode is the error code.
+ If this is not KErrNone then special action may be required.
+*/
+void CXmlEngDOMContentHandler::OnStartElementL(const RTagInfo& aElement,
+ const RAttributeArray& aAttributes,
+ TInt aErrorCode)
+ {
+ if(aErrorCode)
+ {
+ return;
+ }
+
+ TXmlEngElement element;
+ if(iTmpElement.IsNull())
+ {
+ element = iDoc.CreateElementL(aElement.LocalName().DesC(),
+ aElement.Uri().DesC(),
+ aElement.Prefix().DesC());
+ }
+ else
+ {
+ element = iTmpElement;
+
+ CXmlEngDOMContentHandler::RenameElementL( element,
+ aElement.LocalName().DesC(),
+ aElement.Uri().DesC(),
+ aElement.Prefix().DesC() );
+
+ iTmpElement = TXmlEngElement();
+ }
+
+ RArray <RAttribute> array = aAttributes;
+ TInt size = array.Count();
+ RAttribute attr;
+
+ for ( TInt i = 0; i < size; i++)
+ {
+ attr = array[i];
+ if(attr.Attribute().Prefix().DesC().Length())
+ {
+ element.AddNewAttributeL(attr.Attribute().LocalName().DesC(),
+ attr.Value().DesC(),
+ attr.Attribute().Uri().DesC(),
+ attr.Attribute().Prefix().DesC());
+ }
+ else
+ {
+ element.AddNewAttributeL(attr.Attribute().LocalName().DesC(),
+ attr.Value().DesC());
+ }
+ }
+ iLastElement.AppendChildL(element);
+ iLastElement = element;
+}
+
+/**
+This method is a callback to indicate the end of the element has been reached.
+@param aElement is a handle to the element's details.
+@param aErrorCode is the error code.
+ If this is not KErrNone then special action may be required.
+*/
+void CXmlEngDOMContentHandler::OnEndElementL(const RTagInfo& /*aElement*/, TInt aErrorCode)
+ {
+ if(aErrorCode)
+ {
+ return;
+ }
+ iLastElement = iLastElement.ParentNode();
+ }
+
+/**
+This method is a callback that sends the content of the element.
+Not all the content may be returned in one go. The data may be sent in chunks.
+When an OnEndElementL is received this means there is no more content to be sent.
+@param aBytes is the raw content data for the element.
+ The client is responsible for converting the data to the
+ required character set if necessary.
+ In some instances the content may be binary and must not be converted.
+@param aErrorCode is the error code.
+ If this is not KErrNone then special action may be required.
+*/
+void CXmlEngDOMContentHandler::OnContentL(const TDesC8& aBytes, TInt aErrorCode)
+ {
+ if(aErrorCode)
+ {
+ return;
+ }
+ iLastElement.AppendChildL(iDoc.CreateTextNodeL(aBytes));
+ }
+
+/**
+This method is a notification of the beginning of the scope of a prefix-URI Namespace mapping.
+This method is always called before the corresponding OnStartElementL method.
+@param aPrefix is the Namespace prefix being declared.
+@param aUri is the Namespace URI the prefix is mapped to.
+@param aErrorCode is the error code.
+ If this is not KErrNone then special action may be required.
+*/
+void CXmlEngDOMContentHandler::OnStartPrefixMappingL(const RString& aPrefix, const RString& aUri,
+ TInt aErrorCode)
+ {
+ if(aErrorCode)
+ {
+ return;
+ }
+
+ if(iTmpElement.IsNull())
+ {
+ iTmpElement = iDoc.CreateElementL(_L8("fake"));
+ }
+ iTmpElement.AddNamespaceDeclarationL(aUri.DesC(),aPrefix.DesC());
+ }
+
+/**
+This method is a notification of the end of the scope of a prefix-URI mapping.
+This method is called after the corresponding DoEndElementL method.
+@param aPrefix is the Namespace prefix that was mapped.
+@param aErrorCode is the error code.
+ If this is not KErrNone then special action may be required.
+*/
+void CXmlEngDOMContentHandler::OnEndPrefixMappingL(const RString& /*aPrefix*/, TInt /*aErrorCode*/)
+ {
+ }
+
+/**
+This method is a notification of ignorable whitespace in element content.
+@param aBytes are the ignored bytes from the document being parsed.
+@param aErrorCode is the error code.
+ If this is not KErrNone then special action may be required.
+*/
+void CXmlEngDOMContentHandler::OnIgnorableWhiteSpaceL(const TDesC8& /*aBytes*/, TInt /*aErrorCode*/)
+ {
+ }
+
+/**
+This method is a notification of a skipped entity. If the parser encounters an
+external entity it does not need to expand it - it can return the entity as aName
+for the client to deal with.
+@param aName is the name of the skipped entity.
+@param aErrorCode is the error code.
+ If this is not KErrNone then special action may be required.
+*/
+void CXmlEngDOMContentHandler::OnSkippedEntityL(const RString& /*aName*/, TInt /*aErrorCode*/)
+ {
+
+ }
+
+/**
+This method is a receive notification of a processing instruction.
+@param aTarget is the processing instruction target.
+@param aData is the processing instruction data. If empty none was supplied.
+@param aErrorCode is the error code.
+ If this is not KErrNone then special action may be required.
+*/
+void CXmlEngDOMContentHandler::OnProcessingInstructionL(const TDesC8& aTarget,
+ const TDesC8& aData,
+ TInt aErrorCode)
+ {
+ if(aErrorCode)
+ {
+ return;
+ }
+
+ iLastElement.AppendChildL(iDoc.CreateProcessingInstructionL(aTarget,aData));
+ }
+
+/**
+ * This method is a callback that sends the binary content of the element.
+ *
+ * @param aBytes is the raw binary data of the element
+ * and must not be converted.
+ * @param aErrorCode is the error code. If this is not KErrNone
+ * then special action may be required.
+ */
+void CXmlEngDOMContentHandler::OnBinaryContentL(const TDesC8& aBytes,
+ const TDesC8& aCid,
+ TInt aErrorCode)
+ {
+ if(aErrorCode)
+ {
+ return;
+ }
+
+ iLastElement.AppendChildL(iDoc.CreateBinaryContainerL(aCid,aBytes));
+ }
+
+/**
+ * This method is a callback that provides data container reference
+ *
+ * @param aContainer Container encapsulating binary data
+ * @param aErrorCode is the error code. If this is not KErrNone
+ * then special action may be required.
+ */
+void CXmlEngDOMContentHandler::OnDataContainerL( const TXmlEngDataContainer& aContainer,
+ TInt aErrorCode)
+ {
+ if(aErrorCode)
+ {
+ return;
+ }
+
+ iLastElement.AppendChildL(aContainer);
+ }
+
+/**
+This method indicates an error has occurred.
+@param aError is the error code
+*/
+void CXmlEngDOMContentHandler::OnError(TInt /*aErrorCode*/)
+ {
+ }
+
+/**
+This method obtains the interface matching the specified uid.
+@return 0 if no interface matching the uid is found.
+ Otherwise, the this pointer cast to that interface.
+@param aUid the uid identifying the required interface.
+*/
+TAny* CXmlEngDOMContentHandler::GetExtendedInterface(const TInt32 aUid)
+ {
+ if (aUid == MXmlEngExtendedHandler::EExtInterfaceUid)
+ {
+ return static_cast<MXmlEngExtendedHandler*>(this);
+ }
+ return 0;
+ }
+
+/**
+ Renames TXmlEngElement nodes only. (static helper method)
+
+ @param aElement element to rename
+ @param aLocalName New name
+ @param aNamespaceUri New namespace uri
+ @param aPrefix New namespace prefix
+*/
+void CXmlEngDOMContentHandler::RenameElementL(TXmlEngElement& aElement,
+ const TDesC8& aLocalName,
+ const TDesC8& aNamespaceUri,
+ const TDesC8& aPrefix )
+ {
+ if ( !INTERNAL_NODEPTR(aElement)->type == XML_ELEMENT_NODE )
+ {
+ User::Leave(KXmlEngErrWrongUseOfAPI);
+ }
+
+ TXmlEngNode::TXmlEngDOMNodeType type = aElement.NodeType();
+ if (type == TXmlEngNode::EElement)
+ {
+ SetNameL(aElement, aLocalName);
+ if (aNamespaceUri.Length() || aPrefix.Length())
+ {
+ TXmlEngElement nsElem = aElement.AsElement();
+ TXmlEngNamespace ns = nsElem.FindOrCreateNsDeclL(aNamespaceUri, aPrefix);
+ INTERNAL_NODEPTR(aElement)->ns = INTERNAL_NSPTR(ns);
+ }
+ }
+ }
+
+// ---------------------------------------------------------------------------------------------
+// Changes name of the element so that Name() on it will return new name
+// ---------------------------------------------------------------------------------------------
+ void CXmlEngDOMContentHandler::SetNameL( TXmlEngElement& aElement,
+ const TDesC8& aName )
+ {
+
+ if ( !INTERNAL_NODEPTR(aElement) )
+ {
+ User::Leave(KXmlEngErrNullNode);
+ }
+ const xmlChar* KOldName = INTERNAL_NODEPTR(aElement)->name;
+
+ if ( aName.Length() <= 0 )
+ {
+ User::Leave(KXmlEngErrWrongUseOfAPI);
+ }
+ INTERNAL_NODEPTR(aElement)->name = xmlCharFromDesC8L(aName);
+ xmlFree((void *)KOldName);
+
+ }