Split xfa_document_serialize into class files

xfa/fxfa/parser/cxfa_dataimporter.cpp

+// Copyright 2016 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "xfa/fxfa/parser/cxfa_dataimporter.h"
+
+#include <memory>
+
+#include "core/fxcrt/include/fx_stream.h"
+#include "xfa/fde/xml/fde_xml_imp.h"
+#include "xfa/fxfa/include/fxfa.h"
+#include "xfa/fxfa/include/fxfa_basic.h"
+#include "xfa/fxfa/parser/cxfa_document.h"
+#include "xfa/fxfa/parser/cxfa_simple_parser.h"
+#include "xfa/fxfa/parser/xfa_object.h"
+
+CXFA_DataImporter::CXFA_DataImporter(CXFA_Document* pDocument)
+    : m_pDocument(pDocument) {
+  ASSERT(m_pDocument);
+}
+
+FX_BOOL CXFA_DataImporter::ImportData(IFX_FileRead* pDataDocument) {
+  std::unique_ptr<CXFA_SimpleParser> pDataDocumentParser(
+      new CXFA_SimpleParser(m_pDocument, false));
+  if (pDataDocumentParser->StartParse(pDataDocument, XFA_XDPPACKET_Datasets) !=
+      XFA_PARSESTATUS_Ready) {
+    return FALSE;
+  }
+  if (pDataDocumentParser->DoParse(nullptr) < XFA_PARSESTATUS_Done)
+    return FALSE;
+
+  CXFA_Node* pImportDataRoot = pDataDocumentParser->GetRootNode();
+  if (!pImportDataRoot)
+    return FALSE;
+
+  CXFA_Node* pDataModel =
+      ToNode(m_pDocument->GetXFAObject(XFA_HASHCODE_Datasets));
+  if (!pDataModel)
+    return FALSE;
+
+  CXFA_Node* pDataNode = ToNode(m_pDocument->GetXFAObject(XFA_HASHCODE_Data));
+  if (pDataNode)
+    pDataModel->RemoveChild(pDataNode);
+
+  if (pImportDataRoot->GetElementType() == XFA_Element::DataModel) {
+    while (CXFA_Node* pChildNode =
+               pImportDataRoot->GetNodeItem(XFA_NODEITEM_FirstChild)) {
+      pImportDataRoot->RemoveChild(pChildNode);
+      pDataModel->InsertChild(pChildNode);
+    }
+  } else {
+    CFDE_XMLNode* pXMLNode = pImportDataRoot->GetXMLMappingNode();
+    CFDE_XMLNode* pParentXMLNode = pXMLNode->GetNodeItem(CFDE_XMLNode::Parent);
+    if (pParentXMLNode)
+      pParentXMLNode->RemoveChildNode(pXMLNode);
+    pDataModel->InsertChild(pImportDataRoot);
+  }
+  m_pDocument->DoDataRemerge(FALSE);
+  return TRUE;
+}