155 lines
4.0 KiB
C++
155 lines
4.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public
|
|
* License Version 1.1 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
|
* implied. See the License for the specific language governing
|
|
* rights and limitations under the License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All
|
|
* Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*/
|
|
|
|
#include "nsDOMSerializer.h"
|
|
#include "nsIDOMNode.h"
|
|
#include "nsIDOMRange.h"
|
|
#include "nsIDOMClassInfo.h"
|
|
#include "nsIOutputStream.h"
|
|
#include "nsIDocument.h"
|
|
#include "nsIDOMDocument.h"
|
|
#include "nsIDocumentEncoder.h"
|
|
#include "nsIComponentManager.h"
|
|
#include "nsIContentSerializer.h"
|
|
#include "nsString.h"
|
|
|
|
#include "nsLayoutCID.h" // XXX Need range CID
|
|
static NS_DEFINE_CID(kRangeCID,NS_RANGE_CID);
|
|
|
|
nsDOMSerializer::nsDOMSerializer()
|
|
{
|
|
NS_INIT_ISUPPORTS();
|
|
}
|
|
|
|
nsDOMSerializer::~nsDOMSerializer()
|
|
{
|
|
}
|
|
|
|
|
|
// QueryInterface implementation for nsDOMSerializer
|
|
NS_INTERFACE_MAP_BEGIN(nsDOMSerializer)
|
|
NS_INTERFACE_MAP_ENTRY(nsISupports)
|
|
NS_INTERFACE_MAP_ENTRY(nsIDOMSerializer)
|
|
NS_INTERFACE_MAP_ENTRY_DOM_CLASSINFO(DOMSerializer)
|
|
NS_INTERFACE_MAP_END
|
|
|
|
|
|
NS_IMPL_ADDREF(nsDOMSerializer)
|
|
NS_IMPL_RELEASE(nsDOMSerializer)
|
|
|
|
|
|
static nsresult SetUpEncoder(nsIDOMNode *aRoot, const char* aCharset, nsIDocumentEncoder **aEncoder)
|
|
{
|
|
*aEncoder = nsnull;
|
|
|
|
nsresult rv;
|
|
nsCOMPtr<nsIDocumentEncoder> encoder(do_CreateInstance(NS_DOC_ENCODER_CONTRACTID_BASE "text/xml",&rv));
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
PRBool entireDocument = PR_TRUE;
|
|
nsCOMPtr<nsIDocument> document(do_QueryInterface(aRoot));
|
|
if (!document) {
|
|
entireDocument = PR_FALSE;
|
|
nsCOMPtr<nsIDOMDocument> domDoc;
|
|
rv = aRoot->GetOwnerDocument(getter_AddRefs(domDoc));
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
document = do_QueryInterface(domDoc);
|
|
}
|
|
|
|
// This method will fail if no document
|
|
rv = encoder->Init(document,NS_LITERAL_STRING("text/xml"),nsIDocumentEncoder::OutputEncodeEntities);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
nsAutoString charset;
|
|
if (aCharset) {
|
|
charset.AssignWithConversion(aCharset);
|
|
} else {
|
|
rv = document->GetDocumentCharacterSet(charset);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
}
|
|
rv = encoder->SetCharset(charset);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
// If we are working on the entire document we do not need to specify which part to serialize
|
|
if (!entireDocument) {
|
|
nsCOMPtr<nsIDOMRange> range(do_CreateInstance(kRangeCID));
|
|
rv = range->SelectNode(aRoot);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
rv = encoder->SetRange(range);
|
|
}
|
|
}
|
|
|
|
if (NS_SUCCEEDED(rv)) {
|
|
*aEncoder = encoder.get();
|
|
NS_ADDREF(*aEncoder);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDOMSerializer::SerializeToString(nsIDOMNode *root, PRUnichar **_retval)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(root);
|
|
NS_ENSURE_ARG_POINTER(_retval);
|
|
|
|
*_retval = nsnull;
|
|
|
|
nsCOMPtr<nsIDocumentEncoder> encoder;
|
|
nsresult rv = SetUpEncoder(root,nsnull,getter_AddRefs(encoder));
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
nsAutoString str;
|
|
rv = encoder->EncodeToString(str);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
*_retval = str.ToNewUnicode();
|
|
if (!*_retval)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDOMSerializer::SerializeToStream(nsIDOMNode *root,
|
|
nsIOutputStream *stream,
|
|
const char *charset)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(root);
|
|
NS_ENSURE_ARG_POINTER(stream);
|
|
NS_ENSURE_ARG_POINTER(charset);
|
|
|
|
nsCOMPtr<nsIDocumentEncoder> encoder;
|
|
nsresult rv = SetUpEncoder(root,charset,getter_AddRefs(encoder));
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
return encoder->EncodeToStream(stream);
|
|
}
|