1 files changed, 147 insertions, 0 deletions
diff --git a/dom/base/nsDOMSerializer.cpp b/dom/base/nsDOMSerializer.cpp
new file mode 100644
index 000000000..f3b95a607
--- /dev/null
+++ b/dom/base/nsDOMSerializer.cpp
@@ -0,0 +1,147 @@
+/* -*- 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);
+}