// Copyright 2017 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_NODE_H_
#define XFA_FXFA_PARSER_CXFA_NODE_H_

#include <map>
#include <vector>

#include "core/fxcrt/fx_string.h"
#include "fxjs/cjx_node.h"
#include "xfa/fxfa/parser/cxfa_object.h"

class CFX_XMLNode;
class CFXJSE_Argument;
class CXFA_WidgetData;

#define XFA_NODEFILTER_Children 0x01
#define XFA_NODEFILTER_Properties 0x02
#define XFA_NODEFILTER_OneOfProperty 0x04

enum XFA_NodeFlag {
  XFA_NodeFlag_None = 0,
  XFA_NodeFlag_Initialized = 1 << 0,
  XFA_NodeFlag_HasRemovedChildren = 1 << 1,
  XFA_NodeFlag_NeedsInitApp = 1 << 2,
  XFA_NodeFlag_BindFormItems = 1 << 3,
  XFA_NodeFlag_UserInteractive = 1 << 4,
  XFA_NodeFlag_SkipDataBinding = 1 << 5,
  XFA_NodeFlag_OwnXMLNode = 1 << 6,
  XFA_NodeFlag_UnusedNode = 1 << 7,
  XFA_NodeFlag_LayoutGeneratedNode = 1 << 8
};

enum XFA_NODEITEM {
  XFA_NODEITEM_Parent,
  XFA_NODEITEM_FirstChild,
  XFA_NODEITEM_NextSibling,
  XFA_NODEITEM_PrevSibling,
};

const XFA_ATTRIBUTEENUMINFO* GetAttributeEnumByID(XFA_ATTRIBUTEENUM eName);

class CXFA_Node : public CXFA_Object {
 public:
  ~CXFA_Node() override;

  uint32_t GetPacketID() const { return m_ePacket; }

  void SetFlag(uint32_t dwFlag, bool bNotify);
  void ClearFlag(uint32_t dwFlag);

  CJX_Node* JSNode() { return static_cast<CJX_Node*>(JSObject()); }
  const CJX_Node* JSNode() const {
    return static_cast<const CJX_Node*>(JSObject());
  }
  CXFA_Node* GetParent() { return m_pParent; }
  CXFA_Node* GetChildNode() { return m_pChild; }

  CXFA_Node* CreateInstance(bool bDataMerge);
  int32_t GetCount();
  CXFA_Node* GetItem(int32_t iIndex);
  void RemoveItem(CXFA_Node* pRemoveInstance, bool bRemoveDataBinding);
  void InsertItem(CXFA_Node* pNewInstance,
                  int32_t iPos,
                  int32_t iCount,
                  bool bMoveDataBindingNodes);

  bool IsInitialized() const { return HasFlag(XFA_NodeFlag_Initialized); }
  bool IsOwnXMLNode() const { return HasFlag(XFA_NodeFlag_OwnXMLNode); }
  bool IsUserInteractive() const {
    return HasFlag(XFA_NodeFlag_UserInteractive);
  }
  bool IsUnusedNode() const { return HasFlag(XFA_NodeFlag_UnusedNode); }
  bool IsLayoutGeneratedNode() const {
    return HasFlag(XFA_NodeFlag_LayoutGeneratedNode);
  }
  bool BindsFormItems() const { return HasFlag(XFA_NodeFlag_BindFormItems); }
  bool HasRemovedChildren() const {
    return HasFlag(XFA_NodeFlag_HasRemovedChildren);
  }
  bool NeedsInitApp() const { return HasFlag(XFA_NodeFlag_NeedsInitApp); }

  bool IsAttributeInXML();
  bool IsFormContainer() const {
    return m_ePacket == XFA_XDPPACKET_Form && IsContainerNode();
  }
  void SetXMLMappingNode(CFX_XMLNode* pXMLNode) { m_pXMLNode = pXMLNode; }
  CFX_XMLNode* GetXMLMappingNode() const { return m_pXMLNode; }
  CFX_XMLNode* CreateXMLMappingNode();
  bool IsNeedSavingXMLNode();
  uint32_t GetNameHash() const { return m_dwNameHash; }
  bool IsUnnamed() const { return m_dwNameHash == 0; }
  CXFA_Node* GetModelNode();
  void UpdateNameHash();

  int32_t CountChildren(XFA_Element eType, bool bOnlyChild);
  CXFA_Node* GetChild(int32_t index, XFA_Element eType, bool bOnlyChild);
  int32_t InsertChild(int32_t index, CXFA_Node* pNode);
  bool InsertChild(CXFA_Node* pNode, CXFA_Node* pBeforeNode = nullptr);
  bool RemoveChild(CXFA_Node* pNode, bool bNotify = true);

  CXFA_Node* Clone(bool bRecursive);
  CXFA_Node* GetNodeItem(XFA_NODEITEM eItem) const;
  CXFA_Node* GetNodeItem(XFA_NODEITEM eItem, XFA_ObjectType eType) const;
  std::vector<CXFA_Node*> GetNodeList(
      uint32_t dwTypeFilter = XFA_NODEFILTER_Children |
                              XFA_NODEFILTER_Properties,
      XFA_Element eTypeFilter = XFA_Element::Unknown);
  CXFA_Node* CreateSamePacketNode(XFA_Element eType,
                                  uint32_t dwFlags = XFA_NodeFlag_Initialized);
  CXFA_Node* CloneTemplateToForm(bool bRecursive);
  CXFA_Node* GetTemplateNode() const;
  void SetTemplateNode(CXFA_Node* pTemplateNode);
  CXFA_Node* GetDataDescriptionNode();
  void SetDataDescriptionNode(CXFA_Node* pDataDescriptionNode);
  CXFA_Node* GetBindData();
  std::vector<CXFA_Node*> GetBindItems();
  int32_t AddBindItem(CXFA_Node* pFormNode);
  int32_t RemoveBindItem(CXFA_Node* pFormNode);
  bool HasBindItem();
  CXFA_WidgetData* GetWidgetData();
  CXFA_WidgetData* GetContainerWidgetData();
  bool GetLocaleName(WideString& wsLocaleName);
  XFA_ATTRIBUTEENUM GetIntact();
  CXFA_Node* GetFirstChildByName(const WideStringView& wsNodeName) const;
  CXFA_Node* GetFirstChildByName(uint32_t dwNodeNameHash) const;
  CXFA_Node* GetFirstChildByClass(XFA_Element eType) const;
  CXFA_Node* GetNextSameNameSibling(uint32_t dwNodeNameHash) const;
  CXFA_Node* GetNextSameNameSibling(const WideStringView& wsNodeName) const;
  CXFA_Node* GetNextSameClassSibling(XFA_Element eType) const;
  int32_t GetNodeSameNameIndex() const;
  int32_t GetNodeSameClassIndex() const;
  void GetSOMExpression(WideString& wsSOMExpression);
  CXFA_Node* GetInstanceMgrOfSubform();

  CXFA_Node* GetOccurNode();

  void Script_TreeClass_ResolveNode(CFXJSE_Arguments* pArguments);
  void Script_TreeClass_ResolveNodes(CFXJSE_Arguments* pArguments);
  void Script_TreeClass_All(CFXJSE_Value* pValue,
                            bool bSetting,
                            XFA_ATTRIBUTE eAttribute);
  void Script_TreeClass_Nodes(CFXJSE_Value* pValue,
                              bool bSetting,
                              XFA_ATTRIBUTE eAttribute);
  void Script_TreeClass_ClassAll(CFXJSE_Value* pValue,
                                 bool bSetting,
                                 XFA_ATTRIBUTE eAttribute);
  void Script_TreeClass_Parent(CFXJSE_Value* pValue,
                               bool bSetting,
                               XFA_ATTRIBUTE eAttribute);
  void Script_TreeClass_Index(CFXJSE_Value* pValue,
                              bool bSetting,
                              XFA_ATTRIBUTE eAttribute);
  void Script_TreeClass_ClassIndex(CFXJSE_Value* pValue,
                                   bool bSetting,
                                   XFA_ATTRIBUTE eAttribute);
  void Script_TreeClass_SomExpression(CFXJSE_Value* pValue,
                                      bool bSetting,
                                      XFA_ATTRIBUTE eAttribute);
  void Script_NodeClass_ApplyXSL(CFXJSE_Arguments* pArguments);
  void Script_NodeClass_AssignNode(CFXJSE_Arguments* pArguments);
  void Script_NodeClass_Clone(CFXJSE_Arguments* pArguments);
  void Script_NodeClass_GetAttribute(CFXJSE_Arguments* pArguments);
  void Script_NodeClass_GetElement(CFXJSE_Arguments* pArguments);
  void Script_NodeClass_IsPropertySpecified(CFXJSE_Arguments* pArguments);
  void Script_NodeClass_LoadXML(CFXJSE_Arguments* pArguments);
  void Script_NodeClass_SaveFilteredXML(CFXJSE_Arguments* pArguments);
  void Script_NodeClass_SaveXML(CFXJSE_Arguments* pArguments);
  void Script_NodeClass_SetAttribute(CFXJSE_Arguments* pArguments);
  void Script_NodeClass_SetElement(CFXJSE_Arguments* pArguments);
  void Script_NodeClass_Ns(CFXJSE_Value* pValue,
                           bool bSetting,
                           XFA_ATTRIBUTE eAttribute);
  void Script_NodeClass_Model(CFXJSE_Value* pValue,
                              bool bSetting,
                              XFA_ATTRIBUTE eAttribute);
  void Script_NodeClass_IsContainer(CFXJSE_Value* pValue,
                                    bool bSetting,
                                    XFA_ATTRIBUTE eAttribute);
  void Script_NodeClass_IsNull(CFXJSE_Value* pValue,
                               bool bSetting,
                               XFA_ATTRIBUTE eAttribute);
  void Script_NodeClass_OneOfChild(CFXJSE_Value* pValue,
                                   bool bSetting,
                                   XFA_ATTRIBUTE eAttribute);
  void Script_ContainerClass_GetDelta(CFXJSE_Arguments* pArguments);
  void Script_ContainerClass_GetDeltas(CFXJSE_Arguments* pArguments);
  void Script_ModelClass_ClearErrorList(CFXJSE_Arguments* pArguments);
  void Script_ModelClass_CreateNode(CFXJSE_Arguments* pArguments);
  void Script_ModelClass_IsCompatibleNS(CFXJSE_Arguments* pArguments);
  void Script_ModelClass_Context(CFXJSE_Value* pValue,
                                 bool bSetting,
                                 XFA_ATTRIBUTE eAttribute);
  void Script_ModelClass_AliasNode(CFXJSE_Value* pValue,
                                   bool bSetting,
                                   XFA_ATTRIBUTE eAttribute);
  void Script_WsdlConnection_Execute(CFXJSE_Arguments* pArguments);
  void Script_Delta_Restore(CFXJSE_Arguments* pArguments);
  void Script_Delta_CurrentValue(CFXJSE_Value* pValue,
                                 bool bSetting,
                                 XFA_ATTRIBUTE eAttribute);
  void Script_Delta_SavedValue(CFXJSE_Value* pValue,
                               bool bSetting,
                               XFA_ATTRIBUTE eAttribute);
  void Script_Delta_Target(CFXJSE_Value* pValue,
                           bool bSetting,
                           XFA_ATTRIBUTE eAttribute);
  void Script_Attribute_Integer(CFXJSE_Value* pValue,
                                bool bSetting,
                                XFA_ATTRIBUTE eAttribute);
  void Script_Attribute_IntegerRead(CFXJSE_Value* pValue,
                                    bool bSetting,
                                    XFA_ATTRIBUTE eAttribute);
  void Script_Attribute_BOOL(CFXJSE_Value* pValue,
                             bool bSetting,
                             XFA_ATTRIBUTE eAttribute);
  void Script_Attribute_BOOLRead(CFXJSE_Value* pValue,
                                 bool bSetting,
                                 XFA_ATTRIBUTE eAttribute);
  void Script_Attribute_String(CFXJSE_Value* pValue,
                               bool bSetting,
                               XFA_ATTRIBUTE eAttribute);
  void Script_Attribute_StringRead(CFXJSE_Value* pValue,
                                   bool bSetting,
                                   XFA_ATTRIBUTE eAttribute);
  void Script_Som_ValidationMessage(CFXJSE_Value* pValue,
                                    bool bSetting,
                                    XFA_ATTRIBUTE eAttribute);
  void Script_Field_Length(CFXJSE_Value* pValue,
                           bool bSetting,
                           XFA_ATTRIBUTE eAttribute);
  void Script_Som_DefaultValue(CFXJSE_Value* pValue,
                               bool bSetting,
                               XFA_ATTRIBUTE eAttribute);
  void Script_Som_DefaultValue_Read(CFXJSE_Value* pValue,
                                    bool bSetting,
                                    XFA_ATTRIBUTE eAttribute);
  void Script_Boolean_Value(CFXJSE_Value* pValue,
                            bool bSetting,
                            XFA_ATTRIBUTE eAttribute);
  void Script_Som_Message(CFXJSE_Value* pValue,
                          bool bSetting,
                          XFA_SOM_MESSAGETYPE iMessageType);
  void Script_Som_BorderColor(CFXJSE_Value* pValue,
                              bool bSetting,
                              XFA_ATTRIBUTE eAttribute);
  void Script_Som_BorderWidth(CFXJSE_Value* pValue,
                              bool bSetting,
                              XFA_ATTRIBUTE eAttribute);
  void Script_Som_FillColor(CFXJSE_Value* pValue,
                            bool bSetting,
                            XFA_ATTRIBUTE eAttribute);
  void Script_Som_DataNode(CFXJSE_Value* pValue,
                           bool bSetting,
                           XFA_ATTRIBUTE eAttribute);
  void Script_Som_FontColor(CFXJSE_Value* pValue,
                            bool bSetting,
                            XFA_ATTRIBUTE eAttribute);
  void Script_Som_Mandatory(CFXJSE_Value* pValue,
                            bool bSetting,
                            XFA_ATTRIBUTE eAttribute);
  void Script_Som_MandatoryMessage(CFXJSE_Value* pValue,
                                   bool bSetting,
                                   XFA_ATTRIBUTE eAttribute);
  void Script_Som_InstanceIndex(CFXJSE_Value* pValue,
                                bool bSetting,
                                XFA_ATTRIBUTE eAttribute);
  void Script_Draw_DefaultValue(CFXJSE_Value* pValue,
                                bool bSetting,
                                XFA_ATTRIBUTE eAttribute);
  void Script_Field_DefaultValue(CFXJSE_Value* pValue,
                                 bool bSetting,
                                 XFA_ATTRIBUTE eAttribute);
  void Script_Field_EditValue(CFXJSE_Value* pValue,
                              bool bSetting,
                              XFA_ATTRIBUTE eAttribute);
  void Script_Field_FormatMessage(CFXJSE_Value* pValue,
                                  bool bSetting,
                                  XFA_ATTRIBUTE eAttribute);
  void Script_Field_FormattedValue(CFXJSE_Value* pValue,
                                   bool bSetting,
                                   XFA_ATTRIBUTE eAttribute);
  void Script_Field_ParentSubform(CFXJSE_Value* pValue,
                                  bool bSetting,
                                  XFA_ATTRIBUTE eAttribute);
  void Script_Field_SelectedIndex(CFXJSE_Value* pValue,
                                  bool bSetting,
                                  XFA_ATTRIBUTE eAttribute);
  void Script_Field_ClearItems(CFXJSE_Arguments* pArguments);
  void Script_Field_ExecEvent(CFXJSE_Arguments* pArguments);
  void Script_Field_ExecInitialize(CFXJSE_Arguments* pArguments);
  void Script_Field_DeleteItem(CFXJSE_Arguments* pArguments);
  void Script_Field_GetSaveItem(CFXJSE_Arguments* pArguments);
  void Script_Field_BoundItem(CFXJSE_Arguments* pArguments);
  void Script_Field_GetItemState(CFXJSE_Arguments* pArguments);
  void Script_Field_ExecCalculate(CFXJSE_Arguments* pArguments);
  void Script_Field_SetItems(CFXJSE_Arguments* pArguments);
  void Script_Field_GetDisplayItem(CFXJSE_Arguments* pArguments);
  void Script_Field_SetItemState(CFXJSE_Arguments* pArguments);
  void Script_Field_AddItem(CFXJSE_Arguments* pArguments);
  void Script_Field_ExecValidate(CFXJSE_Arguments* pArguments);
  void Script_ExclGroup_DefaultAndRawValue(CFXJSE_Value* pValue,
                                           bool bSetting,
                                           XFA_ATTRIBUTE eAttribute);
  void Script_ExclGroup_ErrorText(CFXJSE_Value* pValue,
                                  bool bSetting,
                                  XFA_ATTRIBUTE eAttribute);
  void Script_ExclGroup_Transient(CFXJSE_Value* pValue,
                                  bool bSetting,
                                  XFA_ATTRIBUTE eAttribute);
  void Script_ExclGroup_ExecEvent(CFXJSE_Arguments* pArguments);
  void Script_ExclGroup_SelectedMember(CFXJSE_Arguments* pArguments);
  void Script_ExclGroup_ExecInitialize(CFXJSE_Arguments* pArguments);
  void Script_ExclGroup_ExecCalculate(CFXJSE_Arguments* pArguments);
  void Script_ExclGroup_ExecValidate(CFXJSE_Arguments* pArguments);
  void Script_Subform_InstanceManager(CFXJSE_Value* pValue,
                                      bool bSetting,
                                      XFA_ATTRIBUTE eAttribute);
  void Script_Subform_Locale(CFXJSE_Value* pValue,
                             bool bSetting,
                             XFA_ATTRIBUTE eAttribute);
  void Script_Subform_ExecEvent(CFXJSE_Arguments* pArguments);
  void Script_Subform_ExecInitialize(CFXJSE_Arguments* pArguments);
  void Script_Subform_ExecCalculate(CFXJSE_Arguments* pArguments);
  void Script_Subform_ExecValidate(CFXJSE_Arguments* pArguments);
  void Script_Subform_GetInvalidObjects(CFXJSE_Arguments* pArguments);

  void Script_Template_FormNodes(CFXJSE_Arguments* pArguments);
  void Script_Template_Remerge(CFXJSE_Arguments* pArguments);
  void Script_Template_ExecInitialize(CFXJSE_Arguments* pArguments);
  void Script_Template_CreateNode(CFXJSE_Arguments* pArguments);
  void Script_Template_Recalculate(CFXJSE_Arguments* pArguments);
  void Script_Template_ExecCalculate(CFXJSE_Arguments* pArguments);
  void Script_Template_ExecValidate(CFXJSE_Arguments* pArguments);
  void Script_Manifest_Evaluate(CFXJSE_Arguments* pArguments);
  void Script_InstanceManager_Count(CFXJSE_Value* pValue,
                                    bool bSetting,
                                    XFA_ATTRIBUTE eAttribute);
  void Script_InstanceManager_Max(CFXJSE_Value* pValue,
                                  bool bSetting,
                                  XFA_ATTRIBUTE eAttribute);
  void Script_InstanceManager_Min(CFXJSE_Value* pValue,
                                  bool bSetting,
                                  XFA_ATTRIBUTE eAttribute);
  void Script_InstanceManager_MoveInstance(CFXJSE_Arguments* pArguments);
  void Script_InstanceManager_RemoveInstance(CFXJSE_Arguments* pArguments);
  void Script_InstanceManager_SetInstances(CFXJSE_Arguments* pArguments);
  void Script_InstanceManager_AddInstance(CFXJSE_Arguments* pArguments);
  void Script_InstanceManager_InsertInstance(CFXJSE_Arguments* pArguments);

  void Script_Occur_Max(CFXJSE_Value* pValue,
                        bool bSetting,
                        XFA_ATTRIBUTE eAttribute);
  void Script_Occur_Min(CFXJSE_Value* pValue,
                        bool bSetting,
                        XFA_ATTRIBUTE eAttribute);
  void Script_Desc_Metadata(CFXJSE_Arguments* pArguments);
  void Script_Form_FormNodes(CFXJSE_Arguments* pArguments);
  void Script_Form_Remerge(CFXJSE_Arguments* pArguments);
  void Script_Form_ExecInitialize(CFXJSE_Arguments* pArguments);
  void Script_Form_Recalculate(CFXJSE_Arguments* pArguments);
  void Script_Form_ExecCalculate(CFXJSE_Arguments* pArguments);
  void Script_Form_ExecValidate(CFXJSE_Arguments* pArguments);
  void Script_Form_Checksum(CFXJSE_Value* pValue,
                            bool bSetting,
                            XFA_ATTRIBUTE eAttribute);
  void Script_Packet_GetAttribute(CFXJSE_Arguments* pArguments);
  void Script_Packet_SetAttribute(CFXJSE_Arguments* pArguments);
  void Script_Packet_RemoveAttribute(CFXJSE_Arguments* pArguments);
  void Script_Packet_Content(CFXJSE_Value* pValue,
                             bool bSetting,
                             XFA_ATTRIBUTE eAttribute);
  void Script_Source_Next(CFXJSE_Arguments* pArguments);
  void Script_Source_CancelBatch(CFXJSE_Arguments* pArguments);
  void Script_Source_First(CFXJSE_Arguments* pArguments);
  void Script_Source_UpdateBatch(CFXJSE_Arguments* pArguments);
  void Script_Source_Previous(CFXJSE_Arguments* pArguments);
  void Script_Source_IsBOF(CFXJSE_Arguments* pArguments);
  void Script_Source_IsEOF(CFXJSE_Arguments* pArguments);
  void Script_Source_Cancel(CFXJSE_Arguments* pArguments);
  void Script_Source_Update(CFXJSE_Arguments* pArguments);
  void Script_Source_Open(CFXJSE_Arguments* pArguments);
  void Script_Source_Delete(CFXJSE_Arguments* pArguments);
  void Script_Source_AddNew(CFXJSE_Arguments* pArguments);
  void Script_Source_Requery(CFXJSE_Arguments* pArguments);
  void Script_Source_Resync(CFXJSE_Arguments* pArguments);
  void Script_Source_Close(CFXJSE_Arguments* pArguments);
  void Script_Source_Last(CFXJSE_Arguments* pArguments);
  void Script_Source_HasDataChanged(CFXJSE_Arguments* pArguments);
  void Script_Source_Db(CFXJSE_Value* pValue,
                        bool bSetting,
                        XFA_ATTRIBUTE eAttribute);
  void Script_Xfa_This(CFXJSE_Value* pValue,
                       bool bSetting,
                       XFA_ATTRIBUTE eAttribute);
  void Script_Handler_Version(CFXJSE_Value* pValue,
                              bool bSetting,
                              XFA_ATTRIBUTE eAttribute);
  void Script_SubmitFormat_Mode(CFXJSE_Value* pValue,
                                bool bSetting,
                                XFA_ATTRIBUTE eAttribute);
  void Script_Extras_Type(CFXJSE_Value* pValue,
                          bool bSetting,
                          XFA_ATTRIBUTE eAttribute);
  void Script_Encrypt_Format(CFXJSE_Value* pValue,
                             bool bSetting,
                             XFA_ATTRIBUTE eAttribute);
  void Script_Script_Stateless(CFXJSE_Value* pValue,
                               bool bSetting,
                               XFA_ATTRIBUTE eAttribute);

 private:
  friend class CXFA_Document;

  CXFA_Node(CXFA_Document* pDoc,
            uint16_t ePacket,
            XFA_ObjectType oType,
            XFA_Element eType,
            const WideStringView& elementName);

  bool HasFlag(XFA_NodeFlag dwFlag) const;
  CXFA_Node* Deprecated_GetPrevSibling();

  void OnRemoved(bool bNotify);

  CXFA_Node* m_pNext;
  CXFA_Node* m_pChild;
  CXFA_Node* m_pLastChild;
  CXFA_Node* m_pParent;
  CFX_XMLNode* m_pXMLNode;
  uint16_t m_ePacket;
  uint16_t m_uNodeFlags;
  uint32_t m_dwNameHash;
  CXFA_Node* m_pAuxNode;
};

#endif  // XFA_FXFA_PARSER_CXFA_NODE_H_