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// Copyright 2014 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

#ifndef XFA_FXFA_PARSER_CXFA_DOCUMENT_H_
#define XFA_FXFA_PARSER_CXFA_DOCUMENT_H_

#include <map>
#include <memory>
#include <unordered_set>
#include <vector>

#include "xfa/fxfa/fxfa.h"
#include "xfa/fxfa/parser/xfa_localemgr.h"
#include "xfa/fxfa/parser/xfa_object.h"

enum XFA_VERSION {
  XFA_VERSION_UNKNOWN = 0,
  XFA_VERSION_200 = 200,
  XFA_VERSION_202 = 202,
  XFA_VERSION_204 = 204,
  XFA_VERSION_205 = 205,
  XFA_VERSION_206 = 206,
  XFA_VERSION_207 = 207,
  XFA_VERSION_208 = 208,
  XFA_VERSION_300 = 300,
  XFA_VERSION_301 = 301,
  XFA_VERSION_303 = 303,
  XFA_VERSION_306 = 306,
  XFA_VERSION_DEFAULT = XFA_VERSION_303,
  XFA_VERSION_MIN = 200,
  XFA_VERSION_MAX = 400,
};

enum XFA_DocFlag {
  XFA_DOCFLAG_StrictScoping = 0x0001,
  XFA_DOCFLAG_HasInteractive = 0x0002,
  XFA_DOCFLAG_Interactive = 0x0004,
  XFA_DOCFLAG_Scripting = 0x0008
};

class CFDE_XMLDoc;
class CScript_DataWindow;
class CScript_EventPseudoModel;
class CScript_HostPseudoModel;
class CScript_LogPseudoModel;
class CScript_LayoutPseudoModel;
class CScript_SignaturePseudoModel;
class CXFA_Document;
class CXFA_LayoutItem;
class CXFA_LayoutProcessor;
class CXFA_Node;
class CXFA_LayoutProcessor;
class CXFA_DocumentParser;
class CXFA_ContainerLayoutItem;
class CXFA_FFNotify;
class CXFA_ScriptContext;

class CXFA_Document {
 public:
  explicit CXFA_Document(CXFA_DocumentParser* pParser);
  ~CXFA_Document();

  CXFA_ScriptContext* InitScriptContext(v8::Isolate* pIsolate);

  CXFA_Node* GetRoot() const { return m_pRootNode; }

  CFDE_XMLDoc* GetXMLDoc() const;
  CXFA_FFNotify* GetNotify() const;
  CXFA_LocaleMgr* GetLocalMgr();
  CXFA_Object* GetXFAObject(XFA_HashCode wsNodeNameHash);
  CXFA_Node* GetNodeByID(CXFA_Node* pRoot, const CFX_WideStringC& wsID);
  CXFA_Node* GetNotBindNode(const std::vector<CXFA_Object*>& arrayNodes);
  CXFA_LayoutProcessor* GetLayoutProcessor();
  CXFA_LayoutProcessor* GetDocLayout();
  CXFA_ScriptContext* GetScriptContext();

  void SetRoot(CXFA_Node* pNewRoot);

  void AddPurgeNode(CXFA_Node* pNode);
  bool RemovePurgeNode(CXFA_Node* pNode);
  void PurgeNodes();

  bool HasFlag(uint32_t dwFlag) { return (m_dwDocFlags & dwFlag) == dwFlag; }
  void SetFlag(uint32_t dwFlag, bool bOn);

  bool IsInteractive();
  XFA_VERSION GetCurVersionMode() { return m_eCurVersionMode; }
  XFA_VERSION RecognizeXFAVersionNumber(CFX_WideString& wsTemplateNS);

  CXFA_Node* CreateNode(uint32_t dwPacket, XFA_Element eElement);
  CXFA_Node* CreateNode(const XFA_PACKETINFO* pPacket, XFA_Element eElement);

  void DoProtoMerge();
  void DoDataMerge();
  void DoDataRemerge(bool bDoDataMerge);
  CXFA_Node* DataMerge_CopyContainer(CXFA_Node* pTemplateNode,
                                     CXFA_Node* pFormNode,
                                     CXFA_Node* pDataScope,
                                     bool bOneInstance,
                                     bool bDataMerge,
                                     bool bUpLevel);
  void DataMerge_UpdateBindingRelations(CXFA_Node* pFormUpdateRoot);

  void ClearLayoutData();

  std::map<uint32_t, CXFA_Node*> m_rgGlobalBinding;
  std::vector<CXFA_Node*> m_pPendingPageSet;

 protected:
  CXFA_DocumentParser* m_pParser;
  CXFA_Node* m_pRootNode;
  std::unique_ptr<CXFA_ScriptContext> m_pScriptContext;
  std::unique_ptr<CXFA_LayoutProcessor> m_pLayoutProcessor;
  std::unique_ptr<CXFA_LocaleMgr> m_pLocalMgr;
  std::unique_ptr<CScript_DataWindow> m_pScriptDataWindow;
  std::unique_ptr<CScript_EventPseudoModel> m_pScriptEvent;
  std::unique_ptr<CScript_HostPseudoModel> m_pScriptHost;
  std::unique_ptr<CScript_LogPseudoModel> m_pScriptLog;
  std::unique_ptr<CScript_LayoutPseudoModel> m_pScriptLayout;
  std::unique_ptr<CScript_SignaturePseudoModel> m_pScriptSignature;
  std::unordered_set<CXFA_Node*> m_PurgeNodes;
  XFA_VERSION m_eCurVersionMode;
  uint32_t m_dwDocFlags;
};

#endif  // XFA_FXFA_PARSER_CXFA_DOCUMENT_H_