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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsDOMSerializer.h"
#include "nsIDocument.h"
#include "nsIDocumentEncoder.h"
#include "nsIDOMDocument.h"
#include "nsComponentManagerUtils.h"
#include "nsContentCID.h"
#include "nsContentUtils.h"
#include "nsError.h"
#include "nsINode.h"
using namespace mozilla;
nsDOMSerializer::nsDOMSerializer()
{
}
nsDOMSerializer::~nsDOMSerializer()
{
}
// QueryInterface implementation for nsDOMSerializer
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsDOMSerializer)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_ENTRY(nsIDOMSerializer)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(nsDOMSerializer, mOwner)
NS_IMPL_CYCLE_COLLECTING_ADDREF(nsDOMSerializer)
NS_IMPL_CYCLE_COLLECTING_RELEASE(nsDOMSerializer)
static nsresult
SetUpEncoder(nsIDOMNode *aRoot, const nsACString& aCharset,
nsIDocumentEncoder **aEncoder)
{
*aEncoder = nullptr;
nsresult rv;
nsCOMPtr<nsIDocumentEncoder> encoder =
do_CreateInstance(NS_DOC_ENCODER_CONTRACTID_BASE "application/xhtml+xml", &rv);
if (NS_FAILED(rv))
return rv;
bool entireDocument = true;
nsCOMPtr<nsIDOMDocument> domDoc(do_QueryInterface(aRoot));
if (!domDoc) {
entireDocument = false;
rv = aRoot->GetOwnerDocument(getter_AddRefs(domDoc));
if (NS_FAILED(rv))
return rv;
}
// This method will fail if no document
rv = encoder->Init(domDoc, NS_LITERAL_STRING("application/xhtml+xml"),
nsIDocumentEncoder::OutputRaw |
nsIDocumentEncoder::OutputDontRewriteEncodingDeclaration);
if (NS_FAILED(rv))
return rv;
nsAutoCString charset(aCharset);
if (charset.IsEmpty()) {
nsCOMPtr<nsIDocument> doc = do_QueryInterface(domDoc);
NS_ASSERTION(doc, "Need a document");
charset = doc->GetDocumentCharacterSet();
}
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) {
rv = encoder->SetNode(aRoot);
}
if (NS_SUCCEEDED(rv)) {
encoder.forget(aEncoder);
}
return rv;
}
void
nsDOMSerializer::SerializeToString(nsINode& aRoot, nsAString& aStr,
ErrorResult& rv)
{
rv = nsDOMSerializer::SerializeToString(aRoot.AsDOMNode(), aStr);
}
NS_IMETHODIMP
nsDOMSerializer::SerializeToString(nsIDOMNode *aRoot, nsAString& _retval)
{
NS_ENSURE_ARG_POINTER(aRoot);
_retval.Truncate();
if (!nsContentUtils::CanCallerAccess(aRoot)) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsIDocumentEncoder> encoder;
nsresult rv = SetUpEncoder(aRoot, EmptyCString(), getter_AddRefs(encoder));
if (NS_FAILED(rv))
return rv;
return encoder->EncodeToString(_retval);
}
void
nsDOMSerializer::SerializeToStream(nsINode& aRoot, nsIOutputStream* aStream,
const nsAString& aCharset, ErrorResult& rv)
{
rv = nsDOMSerializer::SerializeToStream(aRoot.AsDOMNode(), aStream,
NS_ConvertUTF16toUTF8(aCharset));
}
NS_IMETHODIMP
nsDOMSerializer::SerializeToStream(nsIDOMNode *aRoot,
nsIOutputStream *aStream,
const nsACString& aCharset)
{
NS_ENSURE_ARG_POINTER(aRoot);
NS_ENSURE_ARG_POINTER(aStream);
// The charset arg can be empty, in which case we get the document's
// charset and use that when serializing.
if (!nsContentUtils::CanCallerAccess(aRoot)) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsIDocumentEncoder> encoder;
nsresult rv = SetUpEncoder(aRoot, aCharset, getter_AddRefs(encoder));
if (NS_FAILED(rv))
return rv;
return encoder->EncodeToStream(aStream);
}
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